int
_dwarf_extract_local_debug_str_string_given_offset(Dwarf_Debug dbg,
unsigned attrform,
Dwarf_Unsigned offset,
char ** return_str,
Dwarf_Error * error)
{
if (attrform == DW_FORM_strp ||
attrform == DW_FORM_line_strp ||
attrform == DW_FORM_GNU_str_index ||
attrform == DW_FORM_strx) {
/* The 'offset' into .debug_str or .debug_line_str is given,
here we turn that into a pointer. */
Dwarf_Small *secend = 0;
Dwarf_Small *secbegin = 0;
Dwarf_Small *strbegin = 0;
Dwarf_Unsigned secsize = 0;
int errcode = 0;
int res = 0;
if(attrform == DW_FORM_line_strp) {
res = _dwarf_load_section(dbg, &dbg->de_debug_line_str,error);
if (res != DW_DLV_OK) {
return res;
}
errcode = DW_DLE_STRP_OFFSET_BAD;
secsize = dbg->de_debug_line_str.dss_size;
secbegin = dbg->de_debug_line_str.dss_data;
strbegin= dbg->de_debug_line_str.dss_data + offset;
} else {
res = _dwarf_load_section(dbg, &dbg->de_debug_str,error);
if (res != DW_DLV_OK) {
return res;
}
errcode = DW_DLE_STRP_OFFSET_BAD;
secsize = dbg->de_debug_str.dss_size;
secbegin = dbg->de_debug_str.dss_data;
strbegin= dbg->de_debug_str.dss_data + offset;
secend = dbg->de_debug_str.dss_data + secsize;
}
if (offset >= secsize) {
/* Badly damaged DWARF here. */
_dwarf_error(dbg, error, errcode);
return (DW_DLV_ERROR);
}
res= _dwarf_check_string_valid(dbg,secbegin,strbegin, secend,error);
if (res != DW_DLV_OK) {
return res;
}
*return_str = (char *)strbegin;
return DW_DLV_OK;
}
_dwarf_error(dbg, error, DW_DLE_ATTR_FORM_BAD);
return (DW_DLV_ERROR);
}
int
_dwarf_load_debug_types(Dwarf_Debug dbg, Dwarf_Error * error)
{
int res = DW_DLV_ERROR;
if (dbg->de_debug_types.dss_data) {
return DW_DLV_OK;
}
res = _dwarf_load_section(dbg, &dbg->de_debug_abbrev,error);
if (res != DW_DLV_OK) {
return res;
}
res = _dwarf_load_section(dbg, &dbg->de_debug_types, error);
return res;
}
int
dwarf_get_vars(Dwarf_Debug dbg,
Dwarf_Var ** vars,
Dwarf_Signed * ret_var_count, Dwarf_Error * error)
{
int res = _dwarf_load_section(dbg, &dbg->de_debug_varnames,error);
if (res != DW_DLV_OK) {
return res;
}
if (!dbg->de_debug_abbrev.dss_size) {
return (DW_DLV_NO_ENTRY);
}
return _dwarf_internal_get_pubnames_like_data(dbg,
dbg->de_debug_varnames.dss_data,
dbg->de_debug_varnames.dss_size,
(Dwarf_Global **) vars, /* Type punning for sections
with identical format. */
ret_var_count,
error,
DW_DLA_VAR_CONTEXT,
DW_DLA_VAR,
DW_DLE_DEBUG_VARNAMES_LENGTH_BAD,
DW_DLE_DEBUG_VARNAMES_VERSION_ERROR);
}
/* Helper routine to avoid code duplication.
*/
static int
_dwarf_get_loclist_header_start(Dwarf_Debug dbg,
Dwarf_Attribute attr,
Dwarf_Unsigned * loclist_offset,
Dwarf_Error * error)
{
int blkres = dwarf_global_formref(attr, loclist_offset, error);
if (blkres != DW_DLV_OK) {
return (blkres);
}
if (!dbg->de_debug_loc.dss_data) {
int secload = _dwarf_load_section(dbg, &dbg->de_debug_loc,error);
if (secload != DW_DLV_OK) {
return secload;
}
if (!dbg->de_debug_loc.dss_size) {
return (DW_DLV_NO_ENTRY);
}
}
{
int fisres = 0;
Dwarf_Unsigned fissoff = 0;
Dwarf_Unsigned size = 0;
fisres = _dwarf_get_fission_addition_die(attr->ar_die, DW_SECT_LOC,
&fissoff, &size,error);
if(fisres != DW_DLV_OK) {
return fisres;
}
*loclist_offset += fissoff;
}
return DW_DLV_OK;
}
int
dwarf_get_types(Dwarf_Debug dbg,
Dwarf_Type ** types,
Dwarf_Signed * ret_type_count, Dwarf_Error * error)
{
int res;
res =
_dwarf_load_section(dbg,
dbg->de_debug_typenames_index,
&dbg->de_debug_typenames,
error);
if (res != DW_DLV_OK) {
return res;
}
return _dwarf_internal_get_pubnames_like_data(dbg, dbg->de_debug_typenames, dbg->de_debug_typenames_size, (Dwarf_Global **) types, /* type
punning,
Dwarf_Type
is never
a
completed
type */
ret_type_count,
error,
DW_DLA_TYPENAME_CONTEXT,
DW_DLE_DEBUG_TYPENAMES_LENGTH_BAD,
DW_DLE_DEBUG_TYPENAMES_VERSION_ERROR);
}
int
dwarf_get_pubtypes(Dwarf_Debug dbg,
Dwarf_Type ** types,
Dwarf_Signed * ret_type_count, Dwarf_Error * error)
{
int res = _dwarf_load_section(dbg, &dbg->de_debug_pubtypes,error);
if (res != DW_DLV_OK) {
return res;
}
if (!dbg->de_debug_pubtypes.dss_size) {
return (DW_DLV_NO_ENTRY);
}
return _dwarf_internal_get_pubnames_like_data(dbg,
dbg->de_debug_pubtypes.dss_data,
dbg->de_debug_pubtypes.dss_size,
(Dwarf_Global **) types, /* Type punning for sections
with identical format. */
ret_type_count, error,
DW_DLA_PUBTYPES_CONTEXT,
DW_DLA_GLOBAL, /* We don't have DW_DLA_PUBTYPES,
so use DW_DLA_GLOBAL. */
DW_DLE_DEBUG_PUBTYPES_LENGTH_BAD,
DW_DLE_DEBUG_PUBTYPES_VERSION_ERROR);
}
int
dwarf_get_globals(Dwarf_Debug dbg,
Dwarf_Global ** globals,
Dwarf_Signed * return_count, Dwarf_Error * error)
{
int res = _dwarf_load_section(dbg, &dbg->de_debug_pubnames,error);
if (res != DW_DLV_OK) {
return res = 0;
}
if (!dbg->de_debug_pubnames.dss_size) {
return (DW_DLV_NO_ENTRY);
}
return _dwarf_internal_get_pubnames_like_data(dbg,
dbg->de_debug_pubnames.dss_data,
dbg->de_debug_pubnames.dss_size,
globals,
return_count,
error,
DW_DLA_GLOBAL_CONTEXT,
DW_DLA_GLOBAL,
DW_DLE_PUBNAMES_LENGTH_BAD,
DW_DLE_PUBNAMES_VERSION_ERROR);
}
int
_dwarf_get_string_from_tied(Dwarf_Debug dbg,
Dwarf_Unsigned offset,
char **return_str,
Dwarf_Error*error)
{
Dwarf_Debug tieddbg = 0;
Dwarf_Small *secend = 0;
Dwarf_Small *secbegin = 0;
Dwarf_Small *strbegin = 0;
int res = DW_DLV_ERROR;
Dwarf_Error localerror = 0;
/* Attach errors to dbg, not tieddbg. */
tieddbg = dbg->de_tied_data.td_tied_object;
if (!tieddbg) {
_dwarf_error(dbg, error, DW_DLE_NO_TIED_FILE_AVAILABLE);
return DW_DLV_ERROR;
}
/* The 'offset' into .debug_str is set. */
res = _dwarf_load_section(tieddbg, &tieddbg->de_debug_str,&localerror);
if (res == DW_DLV_ERROR) {
Dwarf_Unsigned lerrno = dwarf_errno(localerror);
dwarf_dealloc(tieddbg,localerror,DW_DLA_ERROR);
_dwarf_error(dbg,error,lerrno);
return res;
} else if (res == DW_DLV_NO_ENTRY) {
return res;
}
if (offset >= tieddbg->de_debug_str.dss_size) {
/* Badly damaged DWARF here. */
_dwarf_error(dbg, error, DW_DLE_NO_TIED_STRING_AVAILABLE);
return (DW_DLV_ERROR);
}
secbegin = tieddbg->de_debug_str.dss_data;
strbegin= tieddbg->de_debug_str.dss_data + offset;
secend = tieddbg->de_debug_str.dss_data +
tieddbg->de_debug_str.dss_size;
/* Ensure the offset lies within the .debug_str */
if (offset >= tieddbg->de_debug_str.dss_size) {
_dwarf_error(dbg, error, DW_DLE_NO_TIED_STRING_AVAILABLE);
return (DW_DLV_ERROR);
}
res= _dwarf_check_string_valid(tieddbg,secbegin,strbegin, secend,
&localerror);
if (res == DW_DLV_ERROR) {
Dwarf_Unsigned lerrno = dwarf_errno(localerror);
dwarf_dealloc(tieddbg,localerror,DW_DLA_ERROR);
_dwarf_error(dbg,error,lerrno);
return res;
} else if (res == DW_DLV_NO_ENTRY) {
return res;
}
*return_str = (char *) (tieddbg->de_debug_str.dss_data + offset);
return DW_DLV_OK;
}
int
_dwarf_extract_string_offset_via_str_offsets(Dwarf_Debug dbg,
Dwarf_Small *info_data_ptr,
Dwarf_Half attrnum,
Dwarf_Half attrform,
Dwarf_CU_Context cu_context,
Dwarf_Unsigned *str_sect_offset_out,
Dwarf_Error *error)
{
Dwarf_Unsigned offsettostr= 0;
Dwarf_Unsigned offset_base = 0;
Dwarf_Word leb_len = 0;
Dwarf_Unsigned index_to_offset_entry = 0;
Dwarf_Unsigned offsetintable = 0;
Dwarf_Unsigned end_offsetintable = 0;
Dwarf_Unsigned strofflen = 0;
int res = 0;
res = _dwarf_load_section(dbg, &dbg->de_debug_str_offsets,error);
if (res != DW_DLV_OK) {
return res;
}
index_to_offset_entry = (_dwarf_decode_u_leb128(info_data_ptr, &leb_len));
/* DW_FORM_GNU_str_index has no 'base' value.
DW_FORM_strx has a base value
for the offset table */
if( attrform == DW_FORM_strx) {
res = _dwarf_get_string_base_attr_value(dbg,cu_context,
&offset_base,error);
if (res != DW_DLV_OK) {
return res;
}
}
offsetintable = (index_to_offset_entry*cu_context->cc_length_size )
+ offset_base;
{
Dwarf_Unsigned fissoff = 0;
Dwarf_Unsigned size = 0;
fissoff = _dwarf_get_dwp_extra_offset(&cu_context->cc_dwp_offsets,
DW_SECT_STR_OFFSETS, &size);
offsetintable += fissoff;
}
end_offsetintable = offsetintable + cu_context->cc_length_size;
/* The offsets table is a series of offset-size entries. */
if ((end_offsetintable) >= dbg->de_debug_str_offsets.dss_size ) {
_dwarf_error(dbg, error, DW_DLE_ATTR_FORM_SIZE_BAD);
return (DW_DLV_ERROR);
}
/* Now read the string offset from the offset table. */
READ_UNALIGNED(dbg,offsettostr,Dwarf_Unsigned,
dbg->de_debug_str_offsets.dss_data + offsetintable,
cu_context->cc_length_size);
*str_sect_offset_out = offsettostr;
return DW_DLV_OK;
}
/*
This function returns the count of the number of
aranges in the .debug_aranges section. It sets
aranges to point to a block of Dwarf_Arange's
describing the arange's. It returns DW_DLV_ERROR
on error.
Must be identical in most aspects to
dwarf_get_aranges_addr_offsets!
*/
int
dwarf_get_aranges(Dwarf_Debug dbg,
Dwarf_Arange ** aranges,
Dwarf_Signed * returned_count, Dwarf_Error * error)
{
/* Count of total number of aranges. */
Dwarf_Signed arange_count = 0;
Dwarf_Arange *arange_block = 0;
/* Used to chain Dwarf_Aranges structs. */
Dwarf_Chain curr_chain = NULL;
Dwarf_Chain prev_chain = NULL;
Dwarf_Chain head_chain = NULL;
Dwarf_Unsigned i = 0;
int res = DW_DLV_ERROR;
/* ***** BEGIN CODE ***** */
if (dbg == NULL) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return (DW_DLV_ERROR);
}
res = _dwarf_load_section(dbg, &dbg->de_debug_aranges, error);
if (res != DW_DLV_OK) {
return res;
}
res = dwarf_get_aranges_list(dbg,&head_chain,&arange_count,error);
if(res != DW_DLV_OK) {
return res;
}
arange_block = (Dwarf_Arange *)
_dwarf_get_alloc(dbg, DW_DLA_LIST, arange_count);
if (arange_block == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_chain = head_chain;
for (i = 0; i < arange_count; i++) {
*(arange_block + i) = curr_chain->ch_item;
prev_chain = curr_chain;
curr_chain = curr_chain->ch_next;
dwarf_dealloc(dbg, prev_chain, DW_DLA_CHAIN);
}
*aranges = arange_block;
*returned_count = (arange_count);
return DW_DLV_OK;
}
/* Now that we delay loading .debug_info, we need to do the
load in more places. So putting the load
code in one place now instead of replicating it in multiple
places.
*/
int
_dwarf_load_debug_info(Dwarf_Debug dbg, Dwarf_Error * error)
{
int res = DW_DLV_ERROR;
/* Testing de_debug_info.dss_data allows us to avoid testing
de_debug_abbrev.dss_data.
One test instead of 2. .debug_info is useless
without .debug_abbrev. */
if (dbg->de_debug_info.dss_data) {
return DW_DLV_OK;
}
res = _dwarf_load_section(dbg, &dbg->de_debug_abbrev,error);
if (res != DW_DLV_OK) {
return res;
}
res = _dwarf_load_section(dbg, &dbg->de_debug_info, error);
return res;
}
/* Helper routine to avoid code duplication.
*/
static int
_dwarf_get_loclist_header_start(Dwarf_Debug dbg,
Dwarf_Attribute attr,
Dwarf_Unsigned * loclist_offset,
Dwarf_Error * error)
{
int blkres = dwarf_formudata(attr, loclist_offset, error);
if (blkres != DW_DLV_OK) {
return (blkres);
}
if (!dbg->de_debug_loc.dss_data) {
int secload = _dwarf_load_section(dbg, &dbg->de_debug_loc,error);
if (secload != DW_DLV_OK) {
return secload;
}
}
return DW_DLV_OK;
}
int
dwarf_get_str(Dwarf_Debug dbg,
Dwarf_Off offset,
char **string,
Dwarf_Signed * returned_str_len, Dwarf_Error * error)
{
int res = DW_DLV_ERROR;
if (dbg == NULL) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return (DW_DLV_ERROR);
}
if (offset == dbg->de_debug_str.dss_size) {
/* Normal (if we've iterated thru the set of strings using
dwarf_get_str and are at the end). */
return DW_DLV_NO_ENTRY;
}
if (offset > dbg->de_debug_str.dss_size) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_STR_OFFSET_BAD);
return (DW_DLV_ERROR);
}
if (string == NULL) {
_dwarf_error(dbg, error, DW_DLE_STRING_PTR_NULL);
return (DW_DLV_ERROR);
}
res = _dwarf_load_section(dbg, &dbg->de_debug_str,error);
if (res != DW_DLV_OK) {
return res;
}
if (!dbg->de_debug_str.dss_size) {
return (DW_DLV_NO_ENTRY);
}
*string = (char *) dbg->de_debug_str.dss_data + offset;
*returned_str_len = (strlen(*string));
return DW_DLV_OK;
}
/*ARGSUSED*/ int
dwarf_get_loclist_entry(Dwarf_Debug dbg,
Dwarf_Unsigned offset,
Dwarf_Addr * hipc_offset,
Dwarf_Addr * lopc_offset,
Dwarf_Ptr * data,
Dwarf_Unsigned * entry_len,
Dwarf_Unsigned * next_entry,
Dwarf_Error * error)
{
Dwarf_Block_c b;
Dwarf_Addr lowpc = 0;
Dwarf_Addr highpc = 0;
Dwarf_Half address_size = 0;
int res = DW_DLV_ERROR;
if (!dbg->de_debug_loc.dss_data) {
int secload = _dwarf_load_section(dbg, &dbg->de_debug_loc,error);
if (secload != DW_DLV_OK) {
return secload;
}
}
/* FIXME: address_size is not necessarily the same in every frame. */
address_size = dbg->de_pointer_size;
res = _dwarf_read_loc_section(dbg,
&b, &lowpc, &highpc, offset,
address_size,error);
if (res != DW_DLV_OK) {
return res;
}
*hipc_offset = highpc;
*lopc_offset = lowpc;
*entry_len = b.bl_len;
*data = b.bl_data;
*next_entry = b.bl_len + b.bl_section_offset;
return DW_DLV_OK;
}
/* Contrary to pre-2005 documentation,
The string pointer returned thru return_str must
never have dwarf_dealloc() applied to it.
Documentation fixed July 2005.
*/
int
dwarf_formstring(Dwarf_Attribute attr,
char **return_str, Dwarf_Error * error)
{
Dwarf_CU_Context cu_context = 0;
Dwarf_Debug dbg = 0;
Dwarf_Unsigned offset = 0;
int res = DW_DLV_ERROR;
Dwarf_Small *dataptr = 0;
Dwarf_Small *infoptr = attr->ar_debug_ptr;
res = get_attr_dbg(&dbg,&cu_context,attr,error);
if (res != DW_DLV_OK) {
return res;
}
dataptr = cu_context->cc_is_info?
dbg->de_debug_info.dss_data:
dbg->de_debug_types.dss_data;
if (attr->ar_attribute_form == DW_FORM_string) {
void *begin = attr->ar_debug_ptr;
if (0 == dbg->de_assume_string_in_bounds) {
/* Check that string lies within current cu in .debug_info.
*/
void *end = dataptr +
cu_context->cc_debug_offset +
cu_context->cc_length + cu_context->cc_length_size +
cu_context->cc_extension_size;
if (0 == _dwarf_string_valid(begin, end)) {
_dwarf_error(dbg, error, DW_DLE_ATTR_FORM_SIZE_BAD);
return (DW_DLV_ERROR);
}
}
*return_str = (char *) (begin);
return DW_DLV_OK;
}
if (attr->ar_attribute_form == DW_FORM_GNU_strp_alt) {
/* Unsure what this is really. FIXME */
*return_str = (char *)"<DW_FORM_GNU_strp_alt not handled>";
return DW_DLV_OK;
}
if (attr->ar_attribute_form == DW_FORM_GNU_str_index ||
attr->ar_attribute_form == DW_FORM_strx) {
Dwarf_Unsigned offsettostr= 0;
res = _dwarf_extract_string_offset_via_str_offsets(dbg,
infoptr,
attr->ar_attribute,
attr->ar_attribute_form,
cu_context,
&offsettostr,
error);
offset = offsettostr;
/* FALL THRU */
} else {
if (attr->ar_attribute_form == DW_FORM_strp) {
READ_UNALIGNED(dbg, offset, Dwarf_Unsigned,
infoptr,
cu_context->cc_length_size);
}
}
if (attr->ar_attribute_form == DW_FORM_strp ||
attr->ar_attribute_form == DW_FORM_GNU_str_index ||
attr->ar_attribute_form == DW_FORM_strx) {
/* The 'offset' into .debug_str is set. */
res = _dwarf_load_section(dbg, &dbg->de_debug_str,error);
if (res != DW_DLV_OK) {
return res;
}
if (offset >= dbg->de_debug_str.dss_size) {
/* Badly damaged DWARF here. */
_dwarf_error(dbg, error, DW_DLE_STRP_OFFSET_BAD);
return (DW_DLV_ERROR);
}
if (0 == dbg->de_assume_string_in_bounds) {
/* Check that string lies within its .debug_str. */
void *end = dbg->de_debug_str.dss_data +
dbg->de_debug_str.dss_size;
void*begin = dbg->de_debug_str.dss_data + offset;
if (0 == _dwarf_string_valid(begin, end)) {
_dwarf_error(dbg, error, DW_DLE_STRP_OFFSET_BAD);
return (DW_DLV_ERROR);
}
}
/* Ensure the offset lies within the .debug_str */
if (offset >= dbg->de_debug_str.dss_size) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_STR_OFFSET_BAD);
return (DW_DLV_ERROR);
}
*return_str = (char *) (dbg->de_debug_str.dss_data + offset);
return DW_DLV_OK;
}
_dwarf_error(dbg, error, DW_DLE_ATTR_FORM_BAD);
return (DW_DLV_ERROR);
}
/*
Although source files is supposed to return the
source files in the compilation-unit, it does
not look for any in the statement program. In
other words, it ignores those defined using the
extended opcode DW_LNE_define_file.
*/
int
dwarf_srcfiles(Dwarf_Die die,
char ***srcfiles,
Dwarf_Signed * srcfilecount, Dwarf_Error * error)
{
/*
This pointer is used to scan the portion of the .debug_line
section for the current cu. */
Dwarf_Small *line_ptr;
/*
This points to the last byte of the .debug_line portion for the
current cu. */
Dwarf_Small *line_ptr_end;
/*
This points to the end of the statement program prologue for the
current cu, and serves to check that the prologue was correctly
decoded. */
Dwarf_Small *check_line_ptr;
/*
Pointer to a DW_AT_stmt_list attribute in case it exists in the
die. */
Dwarf_Attribute stmt_list_attr;
/* Pointer to DW_AT_comp_dir attribute in die. */
Dwarf_Attribute comp_dir_attr;
/* Pointer to name of compilation directory. */
Dwarf_Small *comp_dir = 0;
/*
Offset into .debug_line specified by a DW_AT_stmt_list
attribute. */
Dwarf_Unsigned line_offset = 0;
/* Some of the fields of the statement program header. */
Dwarf_Unsigned total_length = 0;
Dwarf_Half version = 0;
Dwarf_Unsigned prologue_length = 0;
Dwarf_Small special_opcode_base= 0;
/* File name excluding included directory. */
char *file_name = 0;
/* Name of directory that the file is in. */
char *dir_name = 0;
/* Name concatenating both directory and file name. */
char *full_name = 0;
/*
This is the directory index for the file. The compilation
directory is 0, and the first included directory is 1. */
Dwarf_Sword dir_index = 0;
Dwarf_Small *include_directories = 0;
Dwarf_Sword i = 0;
Dwarf_Sword file_count = 0;
Dwarf_Sword directories_count = 0;
/*
This is the current opcode read from the statement program. */
Dwarf_Word leb128_length;
/* This is the length of an extended opcode instr. */
/*
This points to a block of char *'s, each of which points to a
file name. */
char **ret_files = 0;
/* The Dwarf_Debug this die belongs to. */
Dwarf_Debug dbg;
/* Used to chain the file names. */
Dwarf_Chain curr_chain, prev_chain, head_chain = NULL;
int resattr;
int lres;
int local_length_size = 0;
/*REFERENCED*/ /* Not used in this instance of the macro */
int local_extension_size = 0;
int res;
/* ***** BEGIN CODE ***** */
/* Reset error. */
if (error != NULL)
*error = NULL;
CHECK_DIE(die, DW_DLV_ERROR)
dbg = die->di_cu_context->cc_dbg;
resattr = dwarf_attr(die, DW_AT_stmt_list, &stmt_list_attr, error);
if (resattr != DW_DLV_OK) {
return resattr;
}
if (dbg->de_debug_line_index == 0) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_LINE_NULL);
return (DW_DLV_ERROR);
}
res =
_dwarf_load_section(dbg,
dbg->de_debug_line_index,
&dbg->de_debug_line,
error);
if (res != DW_DLV_OK) {
return res;
}
lres = dwarf_formudata(stmt_list_attr, &line_offset, error);
if (lres != DW_DLV_OK) {
return lres;
}
if (line_offset >= dbg->de_debug_line_size) {
_dwarf_error(dbg, error, DW_DLE_LINE_OFFSET_BAD);
return (DW_DLV_ERROR);
}
line_ptr = dbg->de_debug_line + line_offset;
dwarf_dealloc(dbg, stmt_list_attr, DW_DLA_ATTR);
/*
If die has DW_AT_comp_dir attribute, get the string that names
the compilation directory. */
resattr = dwarf_attr(die, DW_AT_comp_dir, &comp_dir_attr, error);
if (resattr == DW_DLV_ERROR) {
return resattr;
}
if (resattr == DW_DLV_OK) {
int cres;
char *cdir;
cres = dwarf_formstring(comp_dir_attr, &cdir, error);
if (cres == DW_DLV_ERROR) {
return cres;
} else if (cres == DW_DLV_OK) {
comp_dir = (Dwarf_Small *) cdir;
}
}
if (resattr == DW_DLV_OK) {
dwarf_dealloc(dbg, comp_dir_attr, DW_DLA_ATTR);
}
/*
Following is a straightforward decoding of the statement
program prologue information. */
/* READ_AREA_LENGTH updates line_ptr for consumed bytes */
READ_AREA_LENGTH(dbg, total_length, Dwarf_Unsigned,
line_ptr, local_length_size, local_extension_size);
line_ptr_end = line_ptr + total_length;
if (line_ptr_end > dbg->de_debug_line + dbg->de_debug_line_size) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_LINE_LENGTH_BAD);
return (DW_DLV_ERROR);
}
READ_UNALIGNED(dbg, version, Dwarf_Half,
line_ptr, sizeof(Dwarf_Half));
line_ptr += sizeof(Dwarf_Half);
if (version != CURRENT_VERSION_STAMP &&
version != CURRENT_VERSION_STAMP3) {
_dwarf_error(dbg, error, DW_DLE_VERSION_STAMP_ERROR);
return (DW_DLV_ERROR);
}
READ_UNALIGNED(dbg, prologue_length, Dwarf_Unsigned,
line_ptr, local_length_size);
line_ptr += local_length_size;
check_line_ptr = line_ptr;
/* Skip over minimum instruction length. */
line_ptr = line_ptr + sizeof(Dwarf_Small);
/* Skip over default_is_stmt. */
line_ptr = line_ptr + sizeof(Dwarf_Small);
/* Skip over line_base. */
line_ptr = line_ptr + sizeof(Dwarf_Sbyte);
/* Skip over line_ptr. */
line_ptr = line_ptr + sizeof(Dwarf_Small);
special_opcode_base = *(Dwarf_Small *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Small);
for (i = 1; i < special_opcode_base; i++) {
/* Skip over opcode lengths for standard opcodes. */
line_ptr = line_ptr + sizeof(Dwarf_Small);
}
directories_count = 0;
include_directories = line_ptr;
while ((*(char *) line_ptr) != '\0') {
line_ptr = line_ptr + strlen((char *) line_ptr) + 1;
directories_count++;
}
line_ptr++;
file_count = 0;
while (*(char *) line_ptr != '\0') {
Dwarf_Unsigned utmp;
file_name = (char *) line_ptr;
line_ptr = line_ptr + strlen((char *) line_ptr) + 1;
DECODE_LEB128_UWORD(line_ptr, utmp)
dir_index = (Dwarf_Sword) utmp;
if (dir_index > directories_count) {
_dwarf_error(dbg, error, DW_DLE_DIR_INDEX_BAD);
return (DW_DLV_ERROR);
}
if (dir_index == 0)
dir_name = (char *) comp_dir;
else {
dir_name = (char *) include_directories;
for (i = 1; i < dir_index; i++)
/* FIX: this is probably very slow: redoing strlen!
davea 9/94 */
dir_name = dir_name + strlen(dir_name) + 1;
}
/* dir_name can be NULL if there is no DW_AT_comp_dir */
if ((*file_name) == '/' || dir_name == 0)
full_name = file_name;
else {
full_name = (char *) _dwarf_get_alloc(dbg, DW_DLA_STRING,
strlen(dir_name) + 1 +
strlen(file_name) +
1);
if (full_name == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
strcpy(full_name, dir_name);
strcat(full_name, "/");
strcat(full_name, file_name);
}
/* Skip over time of last modification. */
_dwarf_decode_u_leb128(line_ptr, &leb128_length);
line_ptr = line_ptr + leb128_length;
/* Skip over file length. */
_dwarf_decode_u_leb128(line_ptr, &leb128_length);
line_ptr = line_ptr + leb128_length;
curr_chain =
(Dwarf_Chain) _dwarf_get_alloc(dbg, DW_DLA_CHAIN, 1);
if (curr_chain == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_chain->ch_item = full_name;
if (head_chain == NULL)
head_chain = prev_chain = curr_chain;
else {
prev_chain->ch_next = curr_chain;
prev_chain = curr_chain;
}
file_count++;
}
line_ptr++;
if (line_ptr != check_line_ptr + prologue_length) {
_dwarf_error(dbg, error, DW_DLE_LINE_PROLOG_LENGTH_BAD);
return (DW_DLV_ERROR);
}
if (file_count == 0) {
*srcfiles = NULL;
*srcfilecount = 0;
return (DW_DLV_NO_ENTRY);
}
ret_files = (char **)
_dwarf_get_alloc(dbg, DW_DLA_LIST, file_count);
if (ret_files == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_chain = head_chain;
for (i = 0; i < file_count; i++) {
*(ret_files + i) = curr_chain->ch_item;
prev_chain = curr_chain;
curr_chain = curr_chain->ch_next;
dwarf_dealloc(dbg, prev_chain, DW_DLA_CHAIN);
}
*srcfiles = ret_files;
*srcfilecount = file_count;
return (DW_DLV_OK);
}
/*
This function returns DW_DLV_OK if it succeeds
and DW_DLV_ERR or DW_DLV_OK otherwise.
count is set to the number of addresses in the
.debug_aranges section.
For each address, the corresponding element in
an array is set to the address itself(aranges) and
the section offset (offsets).
Must be identical in most aspects to
dwarf_get_aranges!
*/
int
_dwarf_get_aranges_addr_offsets(Dwarf_Debug dbg,
Dwarf_Addr ** addrs,
Dwarf_Off ** offsets,
Dwarf_Signed * count,
Dwarf_Error * error)
{
Dwarf_Unsigned i = 0;
/* Used to chain Dwarf_Aranges structs. */
Dwarf_Chain curr_chain = NULL;
Dwarf_Chain prev_chain = NULL;
Dwarf_Chain head_chain = NULL;
Dwarf_Signed arange_count = 0;
Dwarf_Addr *arange_addrs = 0;
Dwarf_Off *arange_offsets = 0;
int res = DW_DLV_ERROR;
/* ***** BEGIN CODE ***** */
if (error != NULL)
*error = NULL;
if (dbg == NULL) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return (DW_DLV_ERROR);
}
res = _dwarf_load_section(dbg, &dbg->de_debug_aranges,error);
if (res != DW_DLV_OK) {
return res;
}
res = dwarf_get_aranges_list(dbg,&head_chain,&arange_count,error);
if(res != DW_DLV_OK) {
return res;
}
arange_addrs = (Dwarf_Addr *)
_dwarf_get_alloc(dbg, DW_DLA_ADDR, arange_count);
if (arange_addrs == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
arange_offsets = (Dwarf_Off *)
_dwarf_get_alloc(dbg, DW_DLA_ADDR, arange_count);
if (arange_offsets == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_chain = head_chain;
for (i = 0; i < arange_count; i++) {
Dwarf_Arange ar = curr_chain->ch_item;
arange_addrs[i] = ar->ar_address;
arange_offsets[i] = ar->ar_info_offset;
prev_chain = curr_chain;
curr_chain = curr_chain->ch_next;
dwarf_dealloc(dbg, ar, DW_DLA_ARANGE);
dwarf_dealloc(dbg, prev_chain, DW_DLA_CHAIN);
}
*count = arange_count;
*offsets = arange_offsets;
*addrs = arange_addrs;
return (DW_DLV_OK);
}
int
dwarf_get_xu_index_header(Dwarf_Debug dbg,
/* Pass in section_type "tu" or "cu" */
const char * section_type,
Dwarf_Xu_Index_Header * xuptr,
Dwarf_Unsigned * version,
Dwarf_Unsigned * number_of_columns, /* L */
Dwarf_Unsigned * number_of_CUs, /* N */
Dwarf_Unsigned * number_of_slots, /* M */
const char ** section_name,
Dwarf_Error * error)
{
Dwarf_Xu_Index_Header indexptr = 0;
int res = DW_DLV_ERROR;
struct Dwarf_Section_s *sect = 0;
Dwarf_Unsigned local_version = 0;
Dwarf_Unsigned num_col = 0;
Dwarf_Unsigned num_CUs = 0;
Dwarf_Unsigned num_slots = 0;
Dwarf_Small *data = 0;
Dwarf_Unsigned tables_end_offset = 0;
Dwarf_Unsigned hash_tab_offset = 0;
Dwarf_Unsigned indexes_tab_offset = 0;
Dwarf_Unsigned section_offsets_tab_offset = 0;
Dwarf_Unsigned section_sizes_tab_offset = 0;
unsigned datalen32 = LEN32BIT;
if (!strcmp(section_type,"cu") ) {
sect = &dbg->de_debug_cu_index;
} else if (!strcmp(section_type,"tu") ) {
sect = &dbg->de_debug_tu_index;
} else {
_dwarf_error(dbg, error, DW_DLE_XU_TYPE_ARG_ERROR);
return DW_DLV_ERROR;
}
if (!sect->dss_size) {
return DW_DLV_NO_ENTRY;
}
if (!sect->dss_data) {
res = _dwarf_load_section(dbg, sect,error);
if (res != DW_DLV_OK) {
return res;
}
}
data = sect->dss_data;
if (sect->dss_size < (4*datalen32) ) {
_dwarf_error(dbg, error, DW_DLE_ERRONEOUS_GDB_INDEX_SECTION);
return (DW_DLV_ERROR);
}
READ_UNALIGNED(dbg,local_version, Dwarf_Unsigned,
data,datalen32);
data += datalen32;
READ_UNALIGNED(dbg,num_col, Dwarf_Unsigned,
data,datalen32);
data += datalen32;
READ_UNALIGNED(dbg,num_CUs, Dwarf_Unsigned,
data,datalen32);
data += datalen32;
READ_UNALIGNED(dbg,num_slots, Dwarf_Unsigned,
data,datalen32);
data += datalen32;
hash_tab_offset = datalen32*4;
indexes_tab_offset = hash_tab_offset + (num_slots * HASHSIGNATURELEN);
section_offsets_tab_offset = indexes_tab_offset +
(num_slots *datalen32);
section_sizes_tab_offset = section_offsets_tab_offset +
((num_CUs +1) *num_col* datalen32) ;
tables_end_offset = section_sizes_tab_offset +
((num_CUs ) *num_col* datalen32);
if ( tables_end_offset > sect->dss_size) {
/* Something is badly wrong here. */
_dwarf_error(dbg, error, DW_DLE_ERRONEOUS_GDB_INDEX_SECTION);
return (DW_DLV_ERROR);
}
indexptr = _dwarf_get_alloc(dbg,DW_DLA_XU_INDEX,1);
if (indexptr == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
strcpy(indexptr->gx_type,section_type);
indexptr->gx_dbg = dbg;
indexptr->gx_section_length = sect->dss_size;
indexptr->gx_section_data = sect->dss_data;
indexptr->gx_section_name = sect->dss_name;
indexptr->gx_version = local_version;
indexptr->gx_column_count_sections = num_col;
indexptr->gx_units_in_index = num_CUs;
indexptr->gx_slots_in_hash = num_slots;
indexptr->gx_hash_table_offset = hash_tab_offset;
indexptr->gx_index_table_offset = indexes_tab_offset;
indexptr->gx_section_offsets_offset = section_offsets_tab_offset;
indexptr->gx_section_sizes_offset = section_sizes_tab_offset;
*xuptr = indexptr;
*version = indexptr->gx_version;
*number_of_columns = indexptr->gx_column_count_sections;
*number_of_CUs = indexptr->gx_units_in_index;
*number_of_slots = indexptr->gx_slots_in_hash;
*section_name = indexptr->gx_section_name;
return DW_DLV_OK;
}
/* Contrary to long standing documentation,
The string pointer returned thru return_str must
never have dwarf_dealloc() applied to it.
Documentation fixed July 2005.
*/
int
dwarf_formstring(Dwarf_Attribute attr,
char **return_str, Dwarf_Error * error)
{
Dwarf_CU_Context cu_context;
Dwarf_Debug dbg;
Dwarf_Unsigned offset;
int res;
if (attr == NULL) {
_dwarf_error(NULL, error, DW_DLE_ATTR_NULL);
return (DW_DLV_ERROR);
}
cu_context = attr->ar_cu_context;
if (cu_context == NULL) {
_dwarf_error(NULL, error, DW_DLE_ATTR_NO_CU_CONTEXT);
return (DW_DLV_ERROR);
}
if (cu_context->cc_dbg == NULL) {
_dwarf_error(NULL, error, DW_DLE_ATTR_DBG_NULL);
return (DW_DLV_ERROR);
}
dbg = cu_context->cc_dbg;
if (attr->ar_attribute_form == DW_FORM_string) {
void *begin = attr->ar_debug_info_ptr;
if (0 == dbg->de_assume_string_in_bounds) {
/* Check that string lies within current cu in .debug_info.
*/
void *end = dbg->de_debug_info +
cu_context->cc_debug_info_offset +
cu_context->cc_length + cu_context->cc_length_size +
cu_context->cc_extension_size;
if (0 == _dwarf_string_valid(begin, end)) {
_dwarf_error(dbg, error, DW_DLE_ATTR_FORM_SIZE_BAD);
return (DW_DLV_ERROR);
}
}
*return_str = (char *) (begin);
return DW_DLV_OK;
}
if (attr->ar_attribute_form == DW_FORM_strp) {
READ_UNALIGNED(dbg, offset, Dwarf_Unsigned,
attr->ar_debug_info_ptr,
cu_context->cc_length_size);
res =
_dwarf_load_section(dbg,
dbg->de_debug_str_index,
&dbg->de_debug_str, error);
if (res != DW_DLV_OK) {
return res;
}
*return_str = (char *) (dbg->de_debug_str + offset);
return DW_DLV_OK;
}
_dwarf_error(dbg, error, DW_DLE_ATTR_FORM_BAD);
return (DW_DLV_ERROR);
}
/*
return DW_DLV_OK if ok. else DW_DLV_NO_ENTRY or DW_DLV_ERROR
If err_count_out is non-NULL, this is a special 'check'
call.
*/
int
_dwarf_internal_printlines(Dwarf_Die die, Dwarf_Error * error,
int * err_count_out, int only_line_header)
{
/*
This pointer is used to scan the portion of the .debug_line
section for the current cu. */
Dwarf_Small *line_ptr = 0;
Dwarf_Small *orig_line_ptr = 0;
/*
This points to the last byte of the .debug_line portion for the
current cu. */
Dwarf_Small *line_ptr_end = 0;
/*
Pointer to a DW_AT_stmt_list attribute in case it exists in the
die. */
Dwarf_Attribute stmt_list_attr = 0;
/* Pointer to DW_AT_comp_dir attribute in die. */
Dwarf_Attribute comp_dir_attr = 0;
/* Pointer to name of compilation directory. */
Dwarf_Small *comp_dir = NULL;
/*
Offset into .debug_line specified by a DW_AT_stmt_list
attribute. */
Dwarf_Unsigned line_offset = 0;
struct Line_Table_Prefix_s prefix;
/* These are the state machine state variables. */
Dwarf_Addr address = 0;
Dwarf_Word file = 1;
Dwarf_Word line = 1;
Dwarf_Word column = 0;
Dwarf_Bool is_stmt = false;
Dwarf_Bool basic_block = false;
Dwarf_Bool end_sequence = false;
Dwarf_Bool prologue_end = false;
Dwarf_Bool epilogue_begin = false;
Dwarf_Small isa = 0;
Dwarf_Sword i=0;
/*
This is the current opcode read from the statement program. */
Dwarf_Small opcode=0;
/*
These variables are used to decode leb128 numbers. Leb128_num
holds the decoded number, and leb128_length is its length in
bytes. */
Dwarf_Word leb128_num=0;
Dwarf_Word leb128_length=0;
Dwarf_Sword advance_line=0;
Dwarf_Half attrform = 0;
/*
This is the operand of the latest fixed_advance_pc extended
opcode. */
Dwarf_Half fixed_advance_pc=0;
/* In case there are wierd bytes 'after' the line table
* prologue this lets us print something. This is a gcc
* compiler bug and we expect the bytes count to be 12.
*/
Dwarf_Small* bogus_bytes_ptr = 0;
Dwarf_Unsigned bogus_bytes_count = 0;
/* The Dwarf_Debug this die belongs to. */
Dwarf_Debug dbg=0;
int resattr = DW_DLV_ERROR;
int lres = DW_DLV_ERROR;
int res = DW_DLV_ERROR;
/* ***** BEGIN CODE ***** */
if (error != NULL) {
*error = NULL;
}
CHECK_DIE(die, DW_DLV_ERROR);
dbg = die->di_cu_context->cc_dbg;
res = _dwarf_load_section(dbg, &dbg->de_debug_line,error);
if (res != DW_DLV_OK) {
return res;
}
resattr = dwarf_attr(die, DW_AT_stmt_list, &stmt_list_attr, error);
if (resattr != DW_DLV_OK) {
return resattr;
}
/* The list of relevant FORMs is small.
DW_FORM_data4, DW_FORM_data8, DW_FORM_sec_offset
*/
lres = dwarf_whatform(stmt_list_attr,&attrform,error);
if (lres != DW_DLV_OK) {
return lres;
}
if (attrform != DW_FORM_data4 && attrform != DW_FORM_data8 &&
attrform != DW_FORM_sec_offset ) {
_dwarf_error(dbg, error, DW_DLE_LINE_OFFSET_BAD);
return (DW_DLV_ERROR);
}
lres = dwarf_global_formref(stmt_list_attr, &line_offset, error);
if (lres != DW_DLV_OK) {
return lres;
}
if (line_offset >= dbg->de_debug_line.dss_size) {
_dwarf_error(dbg, error, DW_DLE_LINE_OFFSET_BAD);
return (DW_DLV_ERROR);
}
orig_line_ptr = dbg->de_debug_line.dss_data;
line_ptr = dbg->de_debug_line.dss_data + line_offset;
dwarf_dealloc(dbg, stmt_list_attr, DW_DLA_ATTR);
/*
If die has DW_AT_comp_dir attribute, get the string that names
the compilation directory. */
resattr = dwarf_attr(die, DW_AT_comp_dir, &comp_dir_attr, error);
if (resattr == DW_DLV_ERROR) {
return resattr;
}
if (resattr == DW_DLV_OK) {
int cres = DW_DLV_ERROR;
char *cdir = 0;
cres = dwarf_formstring(comp_dir_attr, &cdir, error);
if (cres == DW_DLV_ERROR) {
return cres;
} else if (cres == DW_DLV_OK) {
comp_dir = (Dwarf_Small *) cdir;
}
}
if (resattr == DW_DLV_OK) {
dwarf_dealloc(dbg, comp_dir_attr, DW_DLA_ATTR);
}
dwarf_init_line_table_prefix(&prefix);
{
Dwarf_Small *line_ptr_out = 0;
int dres = dwarf_read_line_table_prefix(dbg,
line_ptr,dbg->de_debug_line.dss_size - line_offset,
&line_ptr_out,
&prefix,
&bogus_bytes_ptr,
&bogus_bytes_count,
error,
err_count_out);
if (dres == DW_DLV_ERROR) {
dwarf_free_line_table_prefix(&prefix);
return dres;
}
if (dres == DW_DLV_NO_ENTRY) {
dwarf_free_line_table_prefix(&prefix);
return dres;
}
line_ptr_end = prefix.pf_line_ptr_end;
line_ptr = line_ptr_out;
}
if(only_line_header) {
/* Just checking for header errors, nothing more here.*/
dwarf_free_line_table_prefix(&prefix);
return DW_DLV_OK;
}
printf("total line info length %ld bytes, "
"line offset 0x%" DW_PR_DUx " %" DW_PR_DSd "\n",
(long) prefix.pf_total_length,
(Dwarf_Unsigned) line_offset,
(Dwarf_Signed) line_offset);
printf("line table version %d\n",(int) prefix.pf_version);
printf("line table length field length %d prologue length %d\n",
(int)prefix.pf_length_field_length,
(int)prefix.pf_prologue_length);
printf("compilation_directory %s\n",
comp_dir ? ((char *) comp_dir) : "");
printf(" min instruction length %d\n",
(int) prefix.pf_minimum_instruction_length);
printf(" default is stmt %d\n", (int)
prefix.pf_default_is_stmt);
printf(" line base %d\n", (int)
prefix.pf_line_base);
printf(" line_range %d\n", (int)
prefix.pf_line_range);
printf(" opcode base %d\n", (int)
prefix.pf_opcode_base);
printf(" standard opcode count %d\n", (int)
prefix.pf_std_op_count);
for (i = 1; i < prefix.pf_opcode_base; i++) {
printf(" opcode[%2d] length %d\n", (int) i,
(int) prefix.pf_opcode_length_table[i - 1]);
}
printf(" include directories count %d\n", (int)
prefix.pf_include_directories_count);
for (i = 0; i < prefix.pf_include_directories_count; ++i) {
printf(" include dir[%d] %s\n",
(int) i, prefix.pf_include_directories[i]);
}
printf(" files count %d\n", (int)
prefix.pf_files_count);
for (i = 0; i < prefix.pf_files_count; ++i) {
struct Line_Table_File_Entry_s *lfile =
prefix.pf_line_table_file_entries + i;
Dwarf_Unsigned tlm2 = lfile->lte_last_modification_time;
Dwarf_Unsigned di = lfile->lte_directory_index;
Dwarf_Unsigned fl = lfile->lte_length_of_file;
printf(" file[%d] %s (file-number: %d) \n",
(int) i, (char *) lfile->lte_filename,
(int)(i+1));
printf(" dir index %d\n", (int) di);
{
time_t tt = (time_t) tlm2;
printf(" last time 0x%x %s", /* ctime supplies
newline */
(unsigned) tlm2, ctime(&tt));
}
printf(" file length %ld 0x%lx\n",
(long) fl, (unsigned long) fl);
}
{
Dwarf_Unsigned offset = 0;
if(bogus_bytes_count > 0) {
Dwarf_Unsigned wcount = bogus_bytes_count;
Dwarf_Unsigned boffset = bogus_bytes_ptr - orig_line_ptr;
printf("*** DWARF CHECK: the line table prologue header_length "
" is %" DW_PR_DUu " too high, we pretend it is smaller."
"Section offset: %" DW_PR_DUu " (0x%" DW_PR_DUx ") ***\n",
wcount, boffset,boffset);
*err_count_out += 1;
}
offset = line_ptr - orig_line_ptr;
printf(" statement prog offset in section: %" DW_PR_DUu " 0x%" DW_PR_DUx "\n",
offset, offset);
}
/* Initialize the part of the state machine dependent on the
prefix. */
is_stmt = prefix.pf_default_is_stmt;
print_line_header();
/* Start of statement program. */
while (line_ptr < line_ptr_end) {
int type = 0;
printf(" [0x%06" DW_PR_DSx "] ",
(Dwarf_Signed) (line_ptr - orig_line_ptr));
opcode = *(Dwarf_Small *) line_ptr;
line_ptr++;
/* 'type' is the output */
WHAT_IS_OPCODE(type, opcode, prefix.pf_opcode_base,
prefix.pf_opcode_length_table, line_ptr,
prefix.pf_std_op_count);
if (type == LOP_DISCARD) {
int oc;
int opcnt = prefix.pf_opcode_length_table[opcode];
printf("*** DWARF CHECK: DISCARD standard opcode %d "
"with %d operands: "
"not understood.", opcode, opcnt);
*err_count_out += 1;
for (oc = 0; oc < opcnt; oc++) {
/*
* Read and discard operands we don't
* understand.
* Arbitrary choice of unsigned read.
* Signed read would work as well.
*/
Dwarf_Unsigned utmp2;
DECODE_LEB128_UWORD(line_ptr, utmp2);
printf(" %" DW_PR_DUu " (0x%" DW_PR_DUx ")",
(Dwarf_Unsigned) utmp2,
(Dwarf_Unsigned) utmp2);
}
printf("***\n");
/* do nothing, necessary ops done */
} else if (type == LOP_SPECIAL) {
/* This op code is a special op in the object, no matter
that it might fall into the standard op range in this
compile Thatis, these are special opcodes between
special_opcode_base and MAX_LINE_OP_CODE. (including
special_opcode_base and MAX_LINE_OP_CODE) */
char special[50];
unsigned origop = opcode;
opcode = opcode - prefix.pf_opcode_base;
address = address + prefix.pf_minimum_instruction_length *
(opcode / prefix.pf_line_range);
line =
line + prefix.pf_line_base +
opcode % prefix.pf_line_range;
sprintf(special, "Specialop %3u", origop);
print_line_detail(special,
opcode, address, (int) file, line, column,
is_stmt, basic_block, end_sequence,
prologue_end, epilogue_begin, isa);
basic_block = false;
} else if (type == LOP_STANDARD) {
switch (opcode) {
case DW_LNS_copy:{
print_line_detail("DW_LNS_copy",
opcode, address, file, line,
column, is_stmt, basic_block,
end_sequence, prologue_end,
epilogue_begin, isa);
basic_block = false;
break;
}
case DW_LNS_advance_pc:{
Dwarf_Unsigned utmp2;
DECODE_LEB128_UWORD(line_ptr, utmp2);
printf("DW_LNS_advance_pc val %" DW_PR_DSd " 0x%" DW_PR_DUx "\n",
(Dwarf_Signed) (Dwarf_Word) utmp2,
(Dwarf_Unsigned) (Dwarf_Word) utmp2);
leb128_num = (Dwarf_Word) utmp2;
address =
address +
prefix.pf_minimum_instruction_length *
leb128_num;
break;
}
case DW_LNS_advance_line:{
Dwarf_Signed stmp;
DECODE_LEB128_SWORD(line_ptr, stmp);
advance_line = (Dwarf_Sword) stmp;
printf("DW_LNS_advance_line val %" DW_PR_DSd " 0x%" DW_PR_DSx "\n",
(Dwarf_Signed) advance_line,
(Dwarf_Signed) advance_line);
line = line + advance_line;
break;
}
case DW_LNS_set_file:{
Dwarf_Unsigned utmp2;
DECODE_LEB128_UWORD(line_ptr, utmp2);
file = (Dwarf_Word) utmp2;
printf("DW_LNS_set_file %ld\n", (long) file);
break;
}
case DW_LNS_set_column:{
Dwarf_Unsigned utmp2;
DECODE_LEB128_UWORD(line_ptr, utmp2);
column = (Dwarf_Word) utmp2;
printf("DW_LNS_set_column val %" DW_PR_DSd " 0x%" DW_PR_DSx "\n",
(Dwarf_Signed) column, (Dwarf_Signed) column);
break;
}
case DW_LNS_negate_stmt:{
is_stmt = !is_stmt;
printf("DW_LNS_negate_stmt\n");
break;
}
case DW_LNS_set_basic_block:{
printf("DW_LNS_set_basic_block\n");
basic_block = true;
break;
}
case DW_LNS_const_add_pc:{
opcode = MAX_LINE_OP_CODE - prefix.pf_opcode_base;
address =
address +
prefix.pf_minimum_instruction_length * (opcode /
prefix.
pf_line_range);
printf("DW_LNS_const_add_pc new address 0x%" DW_PR_DSx "\n",
(Dwarf_Signed) address);
break;
}
case DW_LNS_fixed_advance_pc:{
READ_UNALIGNED(dbg, fixed_advance_pc, Dwarf_Half,
line_ptr, sizeof(Dwarf_Half));
line_ptr += sizeof(Dwarf_Half);
address = address + fixed_advance_pc;
printf("DW_LNS_fixed_advance_pc val %" DW_PR_DSd
" 0x%" DW_PR_DSx " new address 0x%" DW_PR_DSx "\n",
(Dwarf_Signed) fixed_advance_pc,
(Dwarf_Signed) fixed_advance_pc,
(Dwarf_Signed) address);
break;
}
case DW_LNS_set_prologue_end:{
prologue_end = true;
printf("DW_LNS_set_prologue_end set true.\n");
break;
}
/* New in DWARF3 */
case DW_LNS_set_epilogue_begin:{
epilogue_begin = true;
printf("DW_LNS_set_epilogue_begin set true.\n");
break;
}
/* New in DWARF3 */
case DW_LNS_set_isa:{
Dwarf_Unsigned utmp2;
DECODE_LEB128_UWORD(line_ptr, utmp2);
isa = utmp2;
printf("DW_LNS_set_isa new value 0x%" DW_PR_DUx ".\n",
(Dwarf_Unsigned) utmp2);
if (isa != utmp2) {
/* The value of the isa did not fit in our
local so we record it wrong. declare an
error. */
dwarf_free_line_table_prefix(&prefix);
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
break;
}
}
} else if (type == LOP_EXTENDED) {
Dwarf_Unsigned utmp3 = 0;
Dwarf_Word instr_length = 0;
Dwarf_Small ext_opcode = 0;
DECODE_LEB128_UWORD(line_ptr, utmp3);
instr_length = (Dwarf_Word) utmp3;
ext_opcode = *(Dwarf_Small *) line_ptr;
line_ptr++;
switch (ext_opcode) {
case DW_LNE_end_sequence:{
end_sequence = true;
print_line_detail("DW_LNE_end_sequence extended",
opcode, address, file, line,
column, is_stmt, basic_block,
end_sequence, prologue_end,
epilogue_begin, isa);
address = 0;
file = 1;
line = 1;
column = 0;
is_stmt = prefix.pf_default_is_stmt;
basic_block = false;
end_sequence = false;
prologue_end = false;
epilogue_begin = false;
break;
}
case DW_LNE_set_address:{
{
READ_UNALIGNED(dbg, address, Dwarf_Addr,
line_ptr,
die->di_cu_context->cc_address_size);
line_ptr += die->di_cu_context->cc_address_size;
printf("DW_LNE_set_address address 0x%" DW_PR_DUx "\n",
(Dwarf_Unsigned) address);
}
break;
}
case DW_LNE_define_file:{
Dwarf_Unsigned di = 0;
Dwarf_Unsigned tlm = 0;
Dwarf_Unsigned fl = 0;
Dwarf_Small *fn = (Dwarf_Small *) line_ptr;
line_ptr = line_ptr + strlen((char *) line_ptr) + 1;
di = _dwarf_decode_u_leb128(line_ptr,
&leb128_length);
line_ptr = line_ptr + leb128_length;
tlm = _dwarf_decode_u_leb128(line_ptr,
&leb128_length);
line_ptr = line_ptr + leb128_length;
fl = _dwarf_decode_u_leb128(line_ptr,
&leb128_length);
line_ptr = line_ptr + leb128_length;
printf("DW_LNE_define_file %s \n", fn);
printf(" dir index %d\n", (int) di);
{
time_t tt3 = (time_t) tlm;
/* ctime supplies newline */
printf(" last time 0x%x %s",
(unsigned) tlm, ctime(&tt3));
}
printf(" file length %ld 0x%lx\n",
(long) fl, (unsigned long) fl);
break;
}
default:{
/* This is an extended op code we do not know about,
other than we know now many bytes it is
(and the op code and the bytes of operand). */
Dwarf_Unsigned remaining_bytes = instr_length -1;
if(instr_length < 1 || remaining_bytes > DW_LNE_LEN_MAX) {
dwarf_free_line_table_prefix(&prefix);
_dwarf_error(dbg, error,
DW_DLE_LINE_EXT_OPCODE_BAD);
return (DW_DLV_ERROR);
}
printf("DW_LNE extended op 0x%x ",ext_opcode);
printf("Bytecount: " DW_PR_DUu , instr_length);
if(remaining_bytes > 0) {
printf(" linedata: 0x");
while (remaining_bytes > 0) {
printf("%02x",(unsigned char)(*(line_ptr)));
line_ptr++;
remaining_bytes--;
}
}
printf("\n");
}
break;
}
}
}
dwarf_free_line_table_prefix(&prefix);
return (DW_DLV_OK);
}
/*
This function returns DW_DLV_OK if it succeeds
and DW_DLV_ERR or DW_DLV_OK otherwise.
count is set to the number of addresses in the
.debug_aranges section.
For each address, the corresponding element in
an array is set to the address itself(aranges) and
the section offset (offsets).
Must be identical in most aspects to
dwarf_get_aranges!
*/
int
_dwarf_get_aranges_addr_offsets(Dwarf_Debug dbg,
Dwarf_Addr ** addrs,
Dwarf_Off ** offsets,
Dwarf_Signed * count,
Dwarf_Error * error)
{
/* Sweeps the .debug_aranges section. */
Dwarf_Small *arange_ptr;
Dwarf_Small *arange_start_ptr;
/*
Start of arange header. Used for rounding offset of arange_ptr
to twice the tuple size. Libdwarf requirement. */
Dwarf_Small *header_ptr;
/* Length of current set of aranges. */
Dwarf_Unsigned length;
/* Version of .debug_aranges header. */
Dwarf_Half version;
/* Offset of current set of aranges into .debug_info. */
Dwarf_Off info_offset;
/* Size in bytes of addresses in target. */
Dwarf_Small address_size;
/* Size in bytes of segment offsets in target. */
Dwarf_Small segment_size;
Dwarf_Small remainder;
/* Count of total number of aranges. */
Dwarf_Unsigned arange_count = 0;
/* Start address of arange. */
Dwarf_Addr range_address;
/* Length of arange. */
Dwarf_Unsigned range_length;
Dwarf_Arange arange;
Dwarf_Unsigned i;
/* Used to chain Dwarf_Aranges structs. */
Dwarf_Chain curr_chain, prev_chain, head_chain = NULL;
Dwarf_Addr *arange_addrs;
Dwarf_Off *arange_offsets;
int res;
/* ***** BEGIN CODE ***** */
if (error != NULL)
*error = NULL;
if (dbg == NULL) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return (DW_DLV_ERROR);
}
res =
_dwarf_load_section(dbg,
dbg->de_debug_aranges_index,
&dbg->de_debug_aranges,
error);
if (res != DW_DLV_OK) {
return res;
}
arange_ptr = dbg->de_debug_aranges;
do {
int local_length_size;
/*REFERENCED*/ /* not used in this instance of the macro */
int local_extension_size;
header_ptr = arange_ptr;
/* READ_AREA_LENGTH updates arange_ptr for consumed bytes */
READ_AREA_LENGTH(dbg, length, Dwarf_Unsigned,
arange_ptr, local_length_size,
local_extension_size);
READ_UNALIGNED(dbg, version, Dwarf_Half,
arange_ptr, sizeof(Dwarf_Half));
arange_ptr += sizeof(Dwarf_Half);
length = length - sizeof(Dwarf_Half);
if (version != CURRENT_VERSION_STAMP) {
_dwarf_error(dbg, error, DW_DLE_VERSION_STAMP_ERROR);
return (DW_DLV_ERROR);
}
READ_UNALIGNED(dbg, info_offset, Dwarf_Off,
arange_ptr, local_length_size);
arange_ptr += local_length_size;
length = length - local_length_size;
if (info_offset >= dbg->de_debug_info_size) {
_dwarf_error(dbg, error, DW_DLE_ARANGE_OFFSET_BAD);
return (DW_DLV_ERROR);
}
address_size = *(Dwarf_Small *) arange_ptr;
arange_ptr = arange_ptr + sizeof(Dwarf_Small);
length = length - sizeof(Dwarf_Small);
segment_size = *(Dwarf_Small *) arange_ptr;
arange_ptr = arange_ptr + sizeof(Dwarf_Small);
length = length - sizeof(Dwarf_Small);
if (segment_size != 0) {
_dwarf_error(dbg, error, DW_DLE_SEGMENT_SIZE_BAD);
return (DW_DLV_ERROR);
}
/* Round arange_ptr offset to next multiple of address_size. */
remainder = (Dwarf_Unsigned) (arange_ptr - header_ptr) %
(2 * address_size);
if (remainder != 0) {
arange_ptr = arange_ptr + (2 * address_size) - remainder;
length = length - ((2 * address_size) - remainder);
}
do {
arange_start_ptr = arange_ptr;
READ_UNALIGNED(dbg, range_address, Dwarf_Addr,
arange_ptr, dbg->de_pointer_size);
arange_ptr += dbg->de_pointer_size;
length = length - dbg->de_pointer_size;
READ_UNALIGNED(dbg, range_length, Dwarf_Unsigned,
arange_ptr, local_length_size);
arange_ptr += local_length_size;
length = length - local_length_size;
if (range_address != 0 || range_length != 0) {
arange = (Dwarf_Arange)
_dwarf_get_alloc(dbg, DW_DLA_ARANGE, 1);
if (arange == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
arange->ar_address = range_address;
arange->ar_length = range_length;
arange->ar_info_offset =
arange_start_ptr - dbg->de_debug_aranges;
arange->ar_dbg = dbg;
arange_count++;
curr_chain = (Dwarf_Chain)
_dwarf_get_alloc(dbg, DW_DLA_CHAIN, 1);
if (curr_chain == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_chain->ch_item = arange;
if (head_chain == NULL)
head_chain = prev_chain = curr_chain;
else {
prev_chain->ch_next = curr_chain;
prev_chain = curr_chain;
}
}
} while (range_address != 0 || range_length != 0);
if (length != 0) {
_dwarf_error(dbg, error, DW_DLE_ARANGE_LENGTH_BAD);
return (DW_DLV_ERROR);
}
} while (arange_ptr <
dbg->de_debug_aranges + dbg->de_debug_aranges_size);
if (arange_ptr !=
dbg->de_debug_aranges + dbg->de_debug_aranges_size) {
_dwarf_error(dbg, error, DW_DLE_ARANGE_DECODE_ERROR);
return (DW_DLV_ERROR);
}
arange_addrs = (Dwarf_Addr *)
_dwarf_get_alloc(dbg, DW_DLA_ADDR, arange_count);
if (arange_addrs == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
arange_offsets = (Dwarf_Off *)
_dwarf_get_alloc(dbg, DW_DLA_ADDR, arange_count);
if (arange_offsets == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_chain = head_chain;
for (i = 0; i < arange_count; i++) {
Dwarf_Arange ar = curr_chain->ch_item;
arange_addrs[i] = ar->ar_address;
arange_offsets[i] = ar->ar_info_offset;
prev_chain = curr_chain;
curr_chain = curr_chain->ch_next;
dwarf_dealloc(dbg, ar, DW_DLA_ARANGE);
dwarf_dealloc(dbg, prev_chain, DW_DLA_CHAIN);
}
*count = arange_count;
*offsets = arange_offsets;
*addrs = arange_addrs;
return (DW_DLV_OK);
}
/* return DW_DLV_OK if ok. else DW_DLV_NO_ENTRY or DW_DLV_ERROR
If err_count_out is non-NULL, this is a special 'check'
call. */
static int
_dwarf_internal_printlines(Dwarf_Die die,
Dwarf_Error * error,
int * err_count_out,
int only_line_header)
{
/* This pointer is used to scan the portion of the .debug_line
section for the current cu. */
Dwarf_Small *line_ptr = 0;
Dwarf_Small *orig_line_ptr = 0;
/* Pointer to a DW_AT_stmt_list attribute in case it exists in the
die. */
Dwarf_Attribute stmt_list_attr = 0;
/* Pointer to DW_AT_comp_dir attribute in die. */
Dwarf_Attribute comp_dir_attr = 0;
/* Pointer to name of compilation directory. */
Dwarf_Small *comp_dir = NULL;
/* Offset into .debug_line specified by a DW_AT_stmt_list
attribute. */
Dwarf_Unsigned line_offset = 0;
Dwarf_Sword i=0;
Dwarf_Word u=0;
/* These variables are used to decode leb128 numbers. Leb128_num
holds the decoded number, and leb128_length is its length in
bytes. */
Dwarf_Half attrform = 0;
/* In case there are wierd bytes 'after' the line table
prologue this lets us print something. This is a gcc
compiler bug and we expect the bytes count to be 12. */
Dwarf_Small* bogus_bytes_ptr = 0;
Dwarf_Unsigned bogus_bytes_count = 0;
Dwarf_Half address_size = 0;
Dwarf_Unsigned fission_offset = 0;
/* The Dwarf_Debug this die belongs to. */
Dwarf_Debug dbg=0;
Dwarf_CU_Context cu_context = 0;
Dwarf_Line_Context line_context = 0;
int resattr = DW_DLV_ERROR;
int lres = DW_DLV_ERROR;
int res = DW_DLV_ERROR;
Dwarf_Small *line_ptr_actuals = 0;
Dwarf_Small *line_ptr_end = 0;
Dwarf_Small *section_start = 0;
/* ***** BEGIN CODE ***** */
if (error != NULL) {
*error = NULL;
}
CHECK_DIE(die, DW_DLV_ERROR);
cu_context = die->di_cu_context;
dbg = cu_context->cc_dbg;
res = _dwarf_load_section(dbg, &dbg->de_debug_line,error);
if (res != DW_DLV_OK) {
return res;
}
if (!dbg->de_debug_line.dss_size) {
return (DW_DLV_NO_ENTRY);
}
address_size = _dwarf_get_address_size(dbg, die);
resattr = dwarf_attr(die, DW_AT_stmt_list, &stmt_list_attr, error);
if (resattr != DW_DLV_OK) {
return resattr;
}
/* The list of relevant FORMs is small.
DW_FORM_data4, DW_FORM_data8, DW_FORM_sec_offset
*/
lres = dwarf_whatform(stmt_list_attr,&attrform,error);
if (lres != DW_DLV_OK) {
return lres;
}
if (attrform != DW_FORM_data4 && attrform != DW_FORM_data8 &&
attrform != DW_FORM_sec_offset ) {
_dwarf_error(dbg, error, DW_DLE_LINE_OFFSET_BAD);
return (DW_DLV_ERROR);
}
lres = dwarf_global_formref(stmt_list_attr, &line_offset, error);
if (lres != DW_DLV_OK) {
return lres;
}
if (line_offset >= dbg->de_debug_line.dss_size) {
_dwarf_error(dbg, error, DW_DLE_LINE_OFFSET_BAD);
return (DW_DLV_ERROR);
}
section_start = dbg->de_debug_line.dss_data;
{
Dwarf_Unsigned fission_size = 0;
int resfis = _dwarf_get_fission_addition_die(die, DW_SECT_LINE,
&fission_offset,&fission_size,error);
if(resfis != DW_DLV_OK) {
return resfis;
}
}
orig_line_ptr = section_start + line_offset + fission_offset;
line_ptr = orig_line_ptr;
dwarf_dealloc(dbg, stmt_list_attr, DW_DLA_ATTR);
/* If die has DW_AT_comp_dir attribute, get the string that names
the compilation directory. */
resattr = dwarf_attr(die, DW_AT_comp_dir, &comp_dir_attr, error);
if (resattr == DW_DLV_ERROR) {
return resattr;
}
if (resattr == DW_DLV_OK) {
int cres = DW_DLV_ERROR;
char *cdir = 0;
cres = dwarf_formstring(comp_dir_attr, &cdir, error);
if (cres == DW_DLV_ERROR) {
return cres;
} else if (cres == DW_DLV_OK) {
comp_dir = (Dwarf_Small *) cdir;
}
}
if (resattr == DW_DLV_OK) {
dwarf_dealloc(dbg, comp_dir_attr, DW_DLA_ATTR);
}
line_context = (Dwarf_Line_Context)
_dwarf_get_alloc(dbg, DW_DLA_LINE_CONTEXT, 1);
if (line_context == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
{
Dwarf_Small *newlinep = 0;
int dres = _dwarf_read_line_table_header(dbg,
cu_context,
section_start,
line_ptr,
dbg->de_debug_line.dss_size,
&newlinep,
line_context,
&bogus_bytes_ptr,
&bogus_bytes_count,
error,
err_count_out);
if (dres == DW_DLV_ERROR) {
dwarf_srclines_dealloc_b(line_context);
return dres;
}
if (dres == DW_DLV_NO_ENTRY) {
dwarf_srclines_dealloc_b(line_context);
return dres;
}
line_ptr_end = line_context->lc_line_ptr_end;
line_ptr = newlinep;
if (line_context->lc_actuals_table_offset > 0) {
line_ptr_actuals = line_context->lc_line_prologue_start +
line_context->lc_actuals_table_offset;
}
}
line_context->lc_compilation_directory = comp_dir;
if (only_line_header) {
/* Just checking for header errors, nothing more here.*/
dwarf_srclines_dealloc_b(line_context);
return DW_DLV_OK;
}
dwarf_printf(dbg,
"total line info length %ld bytes,"
" line offset 0x%" DW_PR_XZEROS DW_PR_DUx
" %" DW_PR_DUu "\n",
(long) line_context->lc_total_length,
line_context->lc_section_offset,
line_context->lc_section_offset);
if (line_context->lc_version_number <= DW_LINE_VERSION5) {
dwarf_printf(dbg,
"line table version %d\n",(int) line_context->lc_version_number);
} else {
dwarf_printf(dbg,
"line table version 0x%x\n",(int) line_context->lc_version_number);
}
dwarf_printf(dbg,
"line table length field length %d prologue length %d\n",
(int)line_context->lc_length_field_length,
(int)line_context->lc_prologue_length);
dwarf_printf(dbg,
"compilation_directory %s\n",
comp_dir ? ((char *) comp_dir) : "");
dwarf_printf(dbg,
" min instruction length %d\n",
(int) line_context->lc_minimum_instruction_length);
if (line_context->lc_version_number == EXPERIMENTAL_LINE_TABLES_VERSION) {
dwarf_printf(dbg, " actuals table offset "
"0x%" DW_PR_XZEROS DW_PR_DUx
" logicals table offset "
"0x%" DW_PR_XZEROS DW_PR_DUx "\n",
line_context->lc_actuals_table_offset,
line_context->lc_logicals_table_offset);
}
if (line_context->lc_version_number == DW_LINE_VERSION5) {
dwarf_printf(dbg,
" segment selector size %d\n",
(int) line_context->lc_segment_selector_size);
dwarf_printf(dbg,
" address size %d\n",
(int) line_context->lc_address_size);
}
dwarf_printf(dbg,
" default is stmt %d\n",(int)line_context->lc_default_is_stmt);
dwarf_printf(dbg,
" line base %d\n",(int)line_context->lc_line_base);
dwarf_printf(dbg,
" line_range %d\n",(int)line_context->lc_line_range);
dwarf_printf(dbg,
" opcode base %d\n",(int)line_context->lc_opcode_base);
dwarf_printf(dbg,
" standard opcode count %d\n",(int)line_context->lc_std_op_count);
for (i = 1; i < line_context->lc_opcode_base; i++) {
dwarf_printf(dbg,
" opcode[%2d] length %d\n", (int) i,
(int) line_context->lc_opcode_length_table[i - 1]);
}
dwarf_printf(dbg,
" include directories count %d\n",
(int) line_context->lc_include_directories_count);
for (u = 0; u < line_context->lc_include_directories_count; ++u) {
dwarf_printf(dbg,
" include dir[%u] %s\n",
(int) u, line_context->lc_include_directories[u]);
}
dwarf_printf(dbg,
" files count %d\n",
(int) line_context->lc_file_entry_count);
if (line_context->lc_file_entry_count) {
Dwarf_File_Entry fe = line_context->lc_file_entries;
Dwarf_File_Entry fe2 = fe;
unsigned fiu = 0;
for (fiu = 0 ; fe2 ; fe2 = fe->fi_next,++fiu ) {
Dwarf_Unsigned tlm2 = 0;
Dwarf_Unsigned di = 0;
Dwarf_Unsigned fl = 0;
fe = fe2;
tlm2 = fe->fi_time_last_mod;
di = fe->fi_dir_index;
fl = fe->fi_file_length;
dwarf_printf(dbg,
" file[%u] %s (file-number: %u) \n",
(unsigned) fiu, (char *) fe->fi_file_name,
(unsigned)(fiu+1));
dwarf_printf(dbg,
" dir index %d\n", (int) di);
{
time_t tt = (time_t) tlm2;
/* ctime supplies newline */
dwarf_printf(dbg,
" last time 0x%x %s",
(unsigned) tlm2, ctime(&tt));
}
dwarf_printf(dbg,
" file length %ld 0x%lx\n",
(long) fl, (unsigned long) fl);
}
}
if (line_context->lc_version_number == EXPERIMENTAL_LINE_TABLES_VERSION) {
/* Print the subprograms list. */
Dwarf_Unsigned count = line_context->lc_subprogs_count;
Dwarf_Unsigned exu = 0;
Dwarf_Subprog_Entry sub = line_context->lc_subprogs;
dwarf_printf(dbg," subprograms count"
" %" DW_PR_DUu "\n",count);
if (count > 0) {
dwarf_printf(dbg," indx file line name\n");
}
for (exu = 0 ; exu < count ; exu++,sub++) {
dwarf_printf(dbg," [%2" DW_PR_DUu "] %4" DW_PR_DUu
" %4" DW_PR_DUu " %s\n",
exu+1,
sub->ds_decl_file,
sub->ds_decl_line,
sub->ds_subprog_name);
}
}
{
Dwarf_Unsigned offset = 0;
if (bogus_bytes_count > 0) {
Dwarf_Unsigned wcount = bogus_bytes_count;
Dwarf_Unsigned boffset = bogus_bytes_ptr - section_start;
dwarf_printf(dbg,
"*** DWARF CHECK: the line table prologue header_length "
" is %" DW_PR_DUu " too high, we pretend it is smaller."
"Section offset: 0x%" DW_PR_XZEROS DW_PR_DUx
" (%" DW_PR_DUu ") ***\n",
wcount, boffset,boffset);
*err_count_out += 1;
}
offset = line_ptr - section_start;
dwarf_printf(dbg,
" statement prog offset in section: 0x%"
DW_PR_XZEROS DW_PR_DUx " (%" DW_PR_DUu ")\n",
offset, offset);
}
{
Dwarf_Bool doaddrs = false;
Dwarf_Bool dolines = true;
_dwarf_print_line_context_record(dbg,line_context);
if (!line_ptr_actuals) {
/* Normal single level line table. */
Dwarf_Bool is_single_table = true;
Dwarf_Bool is_actuals_table = false;
print_line_header(dbg, is_single_table, is_actuals_table);
res = read_line_table_program(dbg,
line_ptr, line_ptr_end, orig_line_ptr,
section_start,
line_context,
address_size, doaddrs, dolines,
is_single_table,
is_actuals_table,
error,
err_count_out);
if (res != DW_DLV_OK) {
dwarf_srclines_dealloc_b(line_context);
return res;
}
} else {
Dwarf_Bool is_single_table = false;
Dwarf_Bool is_actuals_table = false;
if (line_context->lc_version_number !=
EXPERIMENTAL_LINE_TABLES_VERSION) {
dwarf_srclines_dealloc_b(line_context);
_dwarf_error(dbg, error, DW_DLE_VERSION_STAMP_ERROR);
return (DW_DLV_ERROR);
}
/* Read Logicals */
print_line_header(dbg, is_single_table, is_actuals_table);
res = read_line_table_program(dbg,
line_ptr, line_ptr_actuals, orig_line_ptr,
section_start,
line_context,
address_size, doaddrs, dolines,
is_single_table,
is_actuals_table,
error,err_count_out);
if (res != DW_DLV_OK) {
dwarf_srclines_dealloc_b(line_context);
return res;
}
if (line_context->lc_actuals_table_offset > 0) {
is_actuals_table = true;
/* Read Actuals */
print_line_header(dbg, is_single_table, is_actuals_table);
res = read_line_table_program(dbg,
line_ptr_actuals, line_ptr_end, orig_line_ptr,
section_start,
line_context,
address_size, doaddrs, dolines,
is_single_table,
is_actuals_table,
error,
err_count_out);
if (res != DW_DLV_OK) {
dwarf_srclines_dealloc_b(line_context);
return res;
}
}
}
}
dwarf_srclines_dealloc_b(line_context);
return DW_DLV_OK;
}
/* Contrary to long standing documentation,
The string pointer returned thru return_str must
never have dwarf_dealloc() applied to it.
Documentation fixed July 2005.
*/
int
dwarf_formstring(Dwarf_Attribute attr,
char **return_str, Dwarf_Error * error)
{
Dwarf_CU_Context cu_context = 0;
Dwarf_Debug dbg = 0;
Dwarf_Unsigned offset = 0;
int res = DW_DLV_ERROR;
res = get_attr_dbg(&dbg,&cu_context,attr,error);
if (res != DW_DLV_OK) {
return res;
}
if (attr->ar_attribute_form == DW_FORM_string) {
void *begin = attr->ar_debug_ptr;
if (0 == dbg->de_assume_string_in_bounds) {
/* Check that string lies within current cu in .debug_info.
*/
void *end = dbg->de_debug_info.dss_data +
cu_context->cc_debug_offset +
cu_context->cc_length + cu_context->cc_length_size +
cu_context->cc_extension_size;
if (0 == _dwarf_string_valid(begin, end)) {
_dwarf_error(dbg, error, DW_DLE_ATTR_FORM_SIZE_BAD);
return (DW_DLV_ERROR);
}
}
*return_str = (char *) (begin);
return DW_DLV_OK;
}
if (attr->ar_attribute_form == DW_FORM_strp) {
READ_UNALIGNED(dbg, offset, Dwarf_Unsigned,
attr->ar_debug_ptr,
cu_context->cc_length_size);
res = _dwarf_load_section(dbg, &dbg->de_debug_str,error);
if (res != DW_DLV_OK) {
return res;
}
if (0 == dbg->de_assume_string_in_bounds) {
/* Check that string lies within current cu in .debug_info.
*/
void *end = dbg->de_debug_str.dss_data +
dbg->de_debug_str.dss_size;
void*begin = dbg->de_debug_str.dss_data + offset;
if (0 == _dwarf_string_valid(begin, end)) {
_dwarf_error(dbg, error, DW_DLE_STRP_OFFSET_BAD);
return (DW_DLV_ERROR);
}
}
/* Ensure the offset lies within the .debug_str */
if (offset >= dbg->de_debug_str.dss_size) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_STR_OFFSET_BAD);
return (DW_DLV_ERROR);
}
*return_str = (char *) (dbg->de_debug_str.dss_data + offset);
return DW_DLV_OK;
}
_dwarf_error(dbg, error, DW_DLE_ATTR_FORM_BAD);
return (DW_DLV_ERROR);
}
int dwarf_get_ranges_a(Dwarf_Debug dbg,
Dwarf_Off rangesoffset,
Dwarf_Die die,
Dwarf_Ranges ** rangesbuf,
Dwarf_Signed * listlen,
Dwarf_Unsigned * bytecount,
Dwarf_Error * error)
{
Dwarf_Small *rangeptr = 0;
Dwarf_Small *beginrangeptr = 0;
Dwarf_Small *section_end = 0;
unsigned entry_count = 0;
struct ranges_entry *base = 0;
struct ranges_entry *last = 0;
struct ranges_entry *curre = 0;
Dwarf_Ranges * ranges_data_out = 0;
unsigned copyindex = 0;
Dwarf_Half address_size = 0;
int res = DW_DLV_ERROR;
Dwarf_Unsigned rangebase = 0;
Dwarf_Debug localdbg = dbg;
Dwarf_Error localerror = 0;
if (die &&localdbg->de_tied_data.td_tied_object) {
/* ASSERT: localdbg->de_debug_ranges is missing: DW_DLV_NO_ENTRY.
So lets not look in dbg. */
Dwarf_CU_Context context = 0;
int restied = 0;
context = die->di_cu_context;
restied = _dwarf_get_ranges_base_attr_from_tied(localdbg,
context,
&rangebase,
error);
if (restied == DW_DLV_ERROR ) {
if(!error) {
return restied;
}
dwarf_dealloc(localdbg,*error,DW_DLA_ERROR);
*error = 0;
/* Nothing else to do. Look in original dbg. */
} else if (restied == DW_DLV_NO_ENTRY ) {
/* Nothing else to do. Look in original dbg. */
} else {
/* Ranges are never in a split dwarf object.
In the base object
instead. Use the tied_object */
localdbg = dbg->de_tied_data.td_tied_object;
}
}
res = _dwarf_load_section(localdbg, &localdbg->de_debug_ranges,&localerror);
if (res == DW_DLV_ERROR) {
_dwarf_error_mv_s_to_t(localdbg,&localerror,dbg,error);
return res;
} else if (res == DW_DLV_NO_ENTRY) {
return res;
}
if ((rangesoffset +rangebase) >= localdbg->de_debug_ranges.dss_size) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_RANGES_OFFSET_BAD);
return (DW_DLV_ERROR);
}
address_size = _dwarf_get_address_size(localdbg, die);
section_end = localdbg->de_debug_ranges.dss_data +
localdbg->de_debug_ranges.dss_size;
rangeptr = localdbg->de_debug_ranges.dss_data + rangesoffset+rangebase;
beginrangeptr = rangeptr;
for (;;) {
struct ranges_entry * re = 0;
if (rangeptr == section_end) {
break;
}
if (rangeptr > section_end) {
free_allocated_ranges(base);
_dwarf_error(dbg, error, DW_DLE_DEBUG_RANGES_OFFSET_BAD);
return (DW_DLV_ERROR);
break;
}
re = calloc(sizeof(struct ranges_entry),1);
if (!re) {
free_allocated_ranges(base);
_dwarf_error(dbg, error, DW_DLE_DEBUG_RANGES_OUT_OF_MEM);
return (DW_DLV_ERROR);
}
if ((rangeptr + (2*address_size)) > section_end) {
free(re);
free_allocated_ranges(base);
_dwarf_error(dbg, error, DW_DLE_DEBUG_RANGES_OFFSET_BAD);
return (DW_DLV_ERROR);
}
entry_count++;
res = read_unaligned_addr_check(localdbg,&re->cur.dwr_addr1,
rangeptr, address_size,error,section_end);
if (res != DW_DLV_OK) {
free(re);
free_allocated_ranges(base);
return res;
}
rangeptr += address_size;
res = read_unaligned_addr_check(localdbg,&re->cur.dwr_addr2,
rangeptr, address_size,error,section_end);
if (res != DW_DLV_OK) {
free(re);
free_allocated_ranges(base);
return res;
}
rangeptr += address_size;
if (!base) {
base = re;
last = re;
} else {
last->next = re;
last = re;
}
if (re->cur.dwr_addr1 == 0 && re->cur.dwr_addr2 == 0) {
re->cur.dwr_type = DW_RANGES_END;
break;
} else if (re->cur.dwr_addr1 == MAX_ADDR) {
re->cur.dwr_type = DW_RANGES_ADDRESS_SELECTION;
} else {
re->cur.dwr_type = DW_RANGES_ENTRY;
}
}
/* We return ranges on dbg, so use that to allocate. */
ranges_data_out = (Dwarf_Ranges *)
_dwarf_get_alloc(dbg,DW_DLA_RANGES,entry_count);
if (!ranges_data_out) {
/* Error, apply to original, not local dbg. */
free_allocated_ranges(base);
_dwarf_error(dbg, error, DW_DLE_DEBUG_RANGES_OUT_OF_MEM);
return (DW_DLV_ERROR);
}
curre = base;
*rangesbuf = ranges_data_out;
*listlen = entry_count;
for (copyindex = 0; curre && (copyindex < entry_count);
++copyindex,++ranges_data_out) {
*ranges_data_out = curre->cur;
curre = curre->next;
}
/* ASSERT: curre == NULL */
free_allocated_ranges(base);
base = 0;
/* Callers will often not care about the bytes used. */
if (bytecount) {
*bytecount = rangeptr - beginrangeptr;
}
return DW_DLV_OK;
}
int
dwarf_get_macro_details(Dwarf_Debug dbg,
Dwarf_Off macro_offset,
Dwarf_Unsigned maximum_count,
Dwarf_Signed * entry_count,
Dwarf_Macro_Details ** details,
Dwarf_Error * error)
{
Dwarf_Small *macro_base = 0;
Dwarf_Small *macro_end = 0;
Dwarf_Small *pnext = 0;
Dwarf_Unsigned endloc = 0;
unsigned char uc = 0;
unsigned long depth = 0;
/* By section 6.3.2 Dwarf3 draft 8/9,
the base file should appear as
DW_MACINFO_start_file. See
http://gcc.gnu.org/ml/gcc-bugs/2005-02/msg03442.html
on "[Bug debug/20253] New: [3.4/4.0 regression]:
Macro debug info broken due to lexer change" for how
gcc is broken in some versions. We no longer use
depth as a stopping point, it's not needed as a
stopping point anyway. */
int res = 0;
/* count space used by strings */
unsigned long str_space = 0;
int done = 0;
unsigned long space_needed = 0;
unsigned long string_offset = 0;
Dwarf_Small *return_data = 0;
Dwarf_Small *pdata = 0;
unsigned long final_count = 0;
Dwarf_Signed fileindex = -1;
Dwarf_Small *latest_str_loc = 0;
struct macro_stack_s msdata;
unsigned long count = 0;
unsigned long max_count = (unsigned long) maximum_count;
_dwarf_reset_index_macro_stack(&msdata);
if (dbg == NULL) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
free_macro_stack(dbg,&msdata);
return (DW_DLV_ERROR);
}
res = _dwarf_load_section(dbg, &dbg->de_debug_macinfo,error);
if (res != DW_DLV_OK) {
free_macro_stack(dbg,&msdata);
return res;
}
if (!dbg->de_debug_abbrev.dss_size) {
free_macro_stack(dbg,&msdata);
return (DW_DLV_NO_ENTRY);
}
macro_base = dbg->de_debug_macinfo.dss_data;
if (macro_base == NULL) {
free_macro_stack(dbg,&msdata);
return (DW_DLV_NO_ENTRY);
}
if (macro_offset >= dbg->de_debug_macinfo.dss_size) {
free_macro_stack(dbg,&msdata);
return (DW_DLV_NO_ENTRY);
}
macro_end = macro_base + dbg->de_debug_macinfo.dss_size;
/* FIXME debugfission is NOT handled here. */
pnext = macro_base + macro_offset;
if (maximum_count == 0) {
max_count = ULONG_MAX;
}
/* how many entries and how much space will they take? */
endloc = (pnext - macro_base);
if (endloc >= dbg->de_debug_macinfo.dss_size) {
if (endloc == dbg->de_debug_macinfo.dss_size) {
/* normal: found last entry */
free_macro_stack(dbg,&msdata);
return DW_DLV_NO_ENTRY;
}
_dwarf_error(dbg, error, DW_DLE_DEBUG_MACRO_LENGTH_BAD);
free_macro_stack(dbg,&msdata);
return (DW_DLV_ERROR);
}
for (count = 0; !done && count < max_count; ++count) {
unsigned long slen = 0;
/* Set but not used */
UNUSEDARG Dwarf_Unsigned utemp = 0;
uc = *pnext;
++pnext; /* get past the type code */
switch (uc) {
case DW_MACINFO_define:
case DW_MACINFO_undef:
/* line, string */
case DW_MACINFO_vendor_ext:
/* number, string */
DECODE_LEB128_UWORD_CK(pnext,utemp,dbg,error,
macro_end);
if (((Dwarf_Unsigned)(pnext - macro_base)) >=
dbg->de_debug_macinfo.dss_size) {
free_macro_stack(dbg,&msdata);
_dwarf_error(dbg, error,
DW_DLE_DEBUG_MACRO_INCONSISTENT);
return (DW_DLV_ERROR);
}
res = _dwarf_check_string_valid(dbg,
macro_base,pnext,macro_end,error);
if (res != DW_DLV_OK) {
return res;
}
slen = strlen((char *) pnext) + 1;
pnext += slen;
if (((Dwarf_Unsigned)(pnext - macro_base)) >=
dbg->de_debug_macinfo.dss_size) {
free_macro_stack(dbg,&msdata);
_dwarf_error(dbg, error,
DW_DLE_DEBUG_MACRO_INCONSISTENT);
return (DW_DLV_ERROR);
}
str_space += slen;
break;
case DW_MACINFO_start_file:
/* line, file index */
DECODE_LEB128_UWORD_CK(pnext,utemp,dbg,error,
macro_end);
if (((Dwarf_Unsigned)(pnext - macro_base)) >=
dbg->de_debug_macinfo.dss_size) {
free_macro_stack(dbg,&msdata);
_dwarf_error(dbg, error,
DW_DLE_DEBUG_MACRO_INCONSISTENT);
return (DW_DLV_ERROR);
}
DECODE_LEB128_UWORD_CK(pnext,utemp,dbg,error,
macro_end);
if (((Dwarf_Unsigned)(pnext - macro_base)) >=
dbg->de_debug_macinfo.dss_size) {
free_macro_stack(dbg,&msdata);
_dwarf_error(dbg, error,
DW_DLE_DEBUG_MACRO_INCONSISTENT);
return (DW_DLV_ERROR);
}
++depth;
break;
case DW_MACINFO_end_file:
if (--depth == 0) {
/* done = 1; no, do not stop here, at least one gcc had
the wrong depth settings in the gcc 3.4 timeframe. */
}
/* no string or number here */
break;
case 0:
/* end of cu's entries */
done = 1;
break;
default:
free_macro_stack(dbg,&msdata);
_dwarf_error(dbg, error, DW_DLE_DEBUG_MACRO_INCONSISTENT);
return (DW_DLV_ERROR);
/* bogus macinfo! */
}
endloc = (pnext - macro_base);
if (endloc == dbg->de_debug_macinfo.dss_size) {
done = 1;
} else if (endloc > dbg->de_debug_macinfo.dss_size) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_MACRO_LENGTH_BAD);
free_macro_stack(dbg,&msdata);
return (DW_DLV_ERROR);
}
}
if (count == 0) {
free_macro_stack(dbg,&msdata);
_dwarf_error(dbg, error, DW_DLE_DEBUG_MACRO_INTERNAL_ERR);
return (DW_DLV_ERROR);
}
/* We have 'count' array entries to allocate and str_space bytes of
string space to provide for. */
string_offset = count * sizeof(Dwarf_Macro_Details);
/* extra 2 not really needed */
space_needed = string_offset + str_space + 2;
return_data = pdata =
(Dwarf_Small *)_dwarf_get_alloc(dbg, DW_DLA_STRING, space_needed);
latest_str_loc = pdata + string_offset;
if (pdata == 0) {
free_macro_stack(dbg,&msdata);
_dwarf_error(dbg, error, DW_DLE_DEBUG_MACRO_MALLOC_SPACE);
return (DW_DLV_ERROR);
}
pnext = macro_base + macro_offset;
done = 0;
/* A series ends with a type code of 0. */
for (final_count = 0; !done && final_count < count; ++final_count) {
unsigned long slen = 0;
Dwarf_Unsigned v1 = 0;
Dwarf_Macro_Details *pdmd = (Dwarf_Macro_Details *) (pdata +
(final_count * sizeof (Dwarf_Macro_Details)));
endloc = (pnext - macro_base);
if (endloc > dbg->de_debug_macinfo.dss_size) {
free_macro_stack(dbg,&msdata);
_dwarf_error(dbg, error, DW_DLE_DEBUG_MACRO_LENGTH_BAD);
return (DW_DLV_ERROR);
}
uc = *pnext;
pdmd->dmd_offset = (pnext - macro_base);
pdmd->dmd_type = uc;
pdmd->dmd_fileindex = fileindex;
pdmd->dmd_lineno = 0;
pdmd->dmd_macro = 0;
++pnext; /* get past the type code */
switch (uc) {
case DW_MACINFO_define:
case DW_MACINFO_undef:
/* line, string */
case DW_MACINFO_vendor_ext:
/* number, string */
DECODE_LEB128_UWORD_CK(pnext,v1,dbg,error,
macro_end);
pdmd->dmd_lineno = v1;
if (((Dwarf_Unsigned)(pnext - macro_base)) >=
dbg->de_debug_macinfo.dss_size) {
free_macro_stack(dbg,&msdata);
dwarf_dealloc(dbg, return_data, DW_DLA_STRING);
_dwarf_error(dbg, error,
DW_DLE_DEBUG_MACRO_INCONSISTENT);
return (DW_DLV_ERROR);
}
res = _dwarf_check_string_valid(dbg,
macro_base,pnext,macro_end,error);
if (res != DW_DLV_OK) {
return res;
}
slen = strlen((char *) pnext) + 1;
strcpy((char *) latest_str_loc, (char *) pnext);
pdmd->dmd_macro = (char *) latest_str_loc;
latest_str_loc += slen;
pnext += slen;
if (((Dwarf_Unsigned)(pnext - macro_base)) >=
dbg->de_debug_macinfo.dss_size) {
free_macro_stack(dbg,&msdata);
dwarf_dealloc(dbg, return_data, DW_DLA_STRING);
_dwarf_error(dbg, error,
DW_DLE_DEBUG_MACRO_INCONSISTENT);
return (DW_DLV_ERROR);
}
break;
case DW_MACINFO_start_file:
/* Line, file index */
DECODE_LEB128_UWORD_CK(pnext,v1,dbg,error,
macro_end);
pdmd->dmd_lineno = v1;
if (((Dwarf_Unsigned)(pnext - macro_base)) >=
dbg->de_debug_macinfo.dss_size) {
free_macro_stack(dbg,&msdata);
dwarf_dealloc(dbg, return_data, DW_DLA_STRING);
_dwarf_error(dbg, error,
DW_DLE_DEBUG_MACRO_INCONSISTENT);
return (DW_DLV_ERROR);
}
DECODE_LEB128_UWORD_CK(pnext,v1,dbg,error,
macro_end);
pdmd->dmd_fileindex = v1;
(void) _dwarf_macro_stack_push_index(dbg, fileindex,
&msdata);
/* We ignore the error, we just let fileindex ** be -1 when
we pop this one. */
fileindex = v1;
if (((Dwarf_Unsigned)(pnext - macro_base)) >=
dbg->de_debug_macinfo.dss_size) {
free_macro_stack(dbg,&msdata);
dwarf_dealloc(dbg, return_data, DW_DLA_STRING);
_dwarf_error(dbg, error,
DW_DLE_DEBUG_MACRO_INCONSISTENT);
return (DW_DLV_ERROR);
}
break;
case DW_MACINFO_end_file:
fileindex = _dwarf_macro_stack_pop_index(&msdata);
break; /* no string or number here */
case 0:
/* Type code of 0 means the end of cu's entries. */
done = 1;
break;
default:
/* Bogus macinfo! */
dwarf_dealloc(dbg, return_data, DW_DLA_STRING);
free_macro_stack(dbg,&msdata);
_dwarf_error(dbg, error, DW_DLE_DEBUG_MACRO_INCONSISTENT);
return (DW_DLV_ERROR);
}
}
*entry_count = count;
*details = (Dwarf_Macro_Details *) return_data;
free_macro_stack(dbg,&msdata);
return DW_DLV_OK;
}
int dwarf_get_ranges_a(Dwarf_Debug dbg,
Dwarf_Off rangesoffset,
Dwarf_Die die,
Dwarf_Ranges ** rangesbuf,
Dwarf_Signed * listlen,
Dwarf_Unsigned * bytecount,
Dwarf_Error * error)
{
Dwarf_Small *rangeptr = 0;
Dwarf_Small *beginrangeptr = 0;
Dwarf_Small *section_end = 0;
unsigned entry_count = 0;
struct ranges_entry *base = 0;
struct ranges_entry *last = 0;
struct ranges_entry *curre = 0;
Dwarf_Ranges * ranges_data_out = 0;
unsigned copyindex = 0;
Dwarf_Half address_size = 0;
int res = DW_DLV_ERROR;
res = _dwarf_load_section(dbg, &dbg->de_debug_ranges,error);
if (res != DW_DLV_OK) {
return res;
}
if(rangesoffset >= dbg->de_debug_ranges.dss_size) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_RANGES_OFFSET_BAD);
return (DW_DLV_ERROR);
}
address_size = _dwarf_get_address_size(dbg, die);
section_end = dbg->de_debug_ranges.dss_data +
dbg->de_debug_ranges.dss_size;
rangeptr = dbg->de_debug_ranges.dss_data + rangesoffset;
beginrangeptr = rangeptr;
for(;;) {
struct ranges_entry * re = calloc(sizeof(struct ranges_entry),1);
if(!re) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_RANGES_OUT_OF_MEM);
return (DW_DLV_ERROR);
}
if(rangeptr >= section_end) {
return (DW_DLV_NO_ENTRY);
}
if((rangeptr + (2*address_size)) > section_end) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_RANGES_OFFSET_BAD);
return (DW_DLV_ERROR);
}
entry_count++;
READ_UNALIGNED(dbg,re->cur.dwr_addr1,
Dwarf_Addr, rangeptr,
address_size);
rangeptr += address_size;
READ_UNALIGNED(dbg,re->cur.dwr_addr2 ,
Dwarf_Addr, rangeptr,
address_size);
rangeptr += address_size;
if(!base) {
base = re;
last = re;
} else {
last->next = re;
last = re;
}
if(re->cur.dwr_addr1 == 0 && re->cur.dwr_addr2 == 0) {
re->cur.dwr_type = DW_RANGES_END;
break;
} else if ( re->cur.dwr_addr1 == MAX_ADDR) {
re->cur.dwr_type = DW_RANGES_ADDRESS_SELECTION;
} else {
re->cur.dwr_type = DW_RANGES_ENTRY;
}
}
ranges_data_out = (Dwarf_Ranges *)
_dwarf_get_alloc(dbg,DW_DLA_RANGES,entry_count);
if(!ranges_data_out) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_RANGES_OUT_OF_MEM);
return (DW_DLV_ERROR);
}
curre = base;
*rangesbuf = ranges_data_out;
*listlen = entry_count;
for( copyindex = 0; curre && (copyindex < entry_count);
++copyindex,++ranges_data_out) {
struct ranges_entry *r = curre;
*ranges_data_out = curre->cur;
curre = curre->next;
free(r);
}
/* Callers will often not care about the bytes used. */
if(bytecount) {
*bytecount = rangeptr - beginrangeptr;
}
return DW_DLV_OK;
}
/*
return DW_DLV_OK if ok. else DW_DLV_NO_ENTRY or DW_DLV_ERROR
*/
int
_dwarf_internal_srclines(Dwarf_Die die,
Dwarf_Line ** linebuf,
Dwarf_Signed * count,
Dwarf_Bool doaddrs,
Dwarf_Bool dolines, Dwarf_Error * error)
{
/*
This pointer is used to scan the portion of the .debug_line
section for the current cu. */
Dwarf_Small *line_ptr;
/*
This points to the last byte of the .debug_line portion for the
current cu. */
Dwarf_Small *line_ptr_end;
/*
This points to the end of the statement program prologue for the
current cu, and serves to check that the prologue was correctly
decoded. */
Dwarf_Small *check_line_ptr;
/*
Pointer to a DW_AT_stmt_list attribute in case it exists in the
die. */
Dwarf_Attribute stmt_list_attr;
/* Pointer to DW_AT_comp_dir attribute in die. */
Dwarf_Attribute comp_dir_attr;
/* Pointer to name of compilation directory. */
Dwarf_Small *comp_dir = NULL;
/*
Offset into .debug_line specified by a DW_AT_stmt_list
attribute. */
Dwarf_Unsigned line_offset;
/* These are the fields of the statement program header. */
Dwarf_Unsigned total_length;
Dwarf_Half version;
Dwarf_Unsigned prologue_length;
Dwarf_Small minimum_instruction_length;
Dwarf_Small default_is_stmt;
Dwarf_Sbyte line_base;
Dwarf_Small line_range;
Dwarf_Small special_opcode_base;
Dwarf_Small *opcode_length;
Dwarf_Small *include_directories;
Dwarf_File_Entry file_entries;
/* These are the state machine state variables. */
Dwarf_Addr address;
Dwarf_Word file;
Dwarf_Word line;
Dwarf_Word column;
Dwarf_Bool is_stmt;
Dwarf_Bool basic_block;
Dwarf_Bool end_sequence;
/*
These pointers are used to build the list of files names by
this cu. cur_file_entry points to the file name being added,
and prev_file_entry to the previous one. */
Dwarf_File_Entry cur_file_entry, prev_file_entry;
Dwarf_Sword i, file_entry_count, include_directories_count;
/*
This is the current opcode read from the statement program. */
Dwarf_Small opcode;
/*
Pointer to a Dwarf_Line_Context_s structure that contains the
context such as file names and include directories for the set
of lines being generated. */
Dwarf_Line_Context line_context;
/*
This is a pointer to the current line being added to the line
matrix. */
Dwarf_Line curr_line;
/*
These variables are used to decode leb128 numbers. Leb128_num
holds the decoded number, and leb128_length is its length in
bytes. */
Dwarf_Word leb128_num;
Dwarf_Word leb128_length;
Dwarf_Sword advance_line;
/*
This is the operand of the latest fixed_advance_pc extended
opcode. */
Dwarf_Half fixed_advance_pc;
/*
Counts the number of lines in the line matrix. */
Dwarf_Sword line_count = 0;
/* This is the length of an extended opcode instr. */
Dwarf_Word instr_length;
Dwarf_Small ext_opcode;
/*
Used to chain together pointers to line table entries that are
later used to create a block of Dwarf_Line entries. */
Dwarf_Chain chain_line, head_chain = NULL, curr_chain;
/*
This points to a block of Dwarf_Lines, a pointer to which is
returned in linebuf. */
Dwarf_Line *block_line;
/* The Dwarf_Debug this die belongs to. */
Dwarf_Debug dbg;
int resattr;
int lres;
int local_length_size = 0;
/*REFERENCED*/ /* Not used in this instance of the macro */
int local_extension_size = 0;
int res;
/* ***** BEGIN CODE ***** */
if (error != NULL)
*error = NULL;
CHECK_DIE(die, DW_DLV_ERROR)
dbg = die->di_cu_context->cc_dbg;
res =
_dwarf_load_section(dbg,
dbg->de_debug_line_index,
&dbg->de_debug_line,
error);
if (res != DW_DLV_OK) {
return res;
}
resattr = dwarf_attr(die, DW_AT_stmt_list, &stmt_list_attr, error);
if (resattr != DW_DLV_OK) {
return resattr;
}
lres = dwarf_formudata(stmt_list_attr, &line_offset, error);
if (lres != DW_DLV_OK) {
return lres;
}
if (line_offset >= dbg->de_debug_line_size) {
_dwarf_error(dbg, error, DW_DLE_LINE_OFFSET_BAD);
return (DW_DLV_ERROR);
}
line_ptr = dbg->de_debug_line + line_offset;
dwarf_dealloc(dbg, stmt_list_attr, DW_DLA_ATTR);
/*
If die has DW_AT_comp_dir attribute, get the string that names
the compilation directory. */
resattr = dwarf_attr(die, DW_AT_comp_dir, &comp_dir_attr, error);
if (resattr == DW_DLV_ERROR) {
return resattr;
}
if (resattr == DW_DLV_OK) {
int cres;
char *cdir;
cres = dwarf_formstring(comp_dir_attr, &cdir, error);
if (cres == DW_DLV_ERROR) {
return cres;
} else if (cres == DW_DLV_OK) {
comp_dir = (Dwarf_Small *) cdir;
}
}
if (resattr == DW_DLV_OK) {
dwarf_dealloc(dbg, comp_dir_attr, DW_DLA_ATTR);
}
/*
Following is a straightforward decoding of the statement
program prologue information. */
/* READ_AREA_LENGTH updates line_ptr for consumed bytes */
READ_AREA_LENGTH(dbg, total_length, Dwarf_Unsigned,
line_ptr, local_length_size, local_extension_size);
line_ptr_end = line_ptr + total_length;
if (line_ptr_end > dbg->de_debug_line + dbg->de_debug_line_size) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_LINE_LENGTH_BAD);
return (DW_DLV_ERROR);
}
READ_UNALIGNED(dbg, version, Dwarf_Half,
line_ptr, sizeof(Dwarf_Half));
line_ptr += sizeof(Dwarf_Half);
if (version != CURRENT_VERSION_STAMP &&
version != CURRENT_VERSION_STAMP3) {
_dwarf_error(dbg, error, DW_DLE_VERSION_STAMP_ERROR);
return (DW_DLV_ERROR);
}
READ_UNALIGNED(dbg, prologue_length, Dwarf_Unsigned,
line_ptr, local_length_size);
line_ptr += local_length_size;
check_line_ptr = line_ptr;
minimum_instruction_length = *(Dwarf_Small *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Small);
default_is_stmt = *(Dwarf_Small *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Small);
line_base = *(Dwarf_Sbyte *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Sbyte);
line_range = *(Dwarf_Small *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Small);
special_opcode_base = *(Dwarf_Small *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Small);
opcode_length = (Dwarf_Small *)
alloca(sizeof(Dwarf_Small) * special_opcode_base);
for (i = 1; i < special_opcode_base; i++) {
opcode_length[i] = *(Dwarf_Small *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Small);
}
include_directories_count = 0;
include_directories = line_ptr;
while ((*(char *) line_ptr) != '\0') {
line_ptr = line_ptr + strlen((char *) line_ptr) + 1;
include_directories_count++;
}
line_ptr++;
file_entry_count = 0;
file_entries = prev_file_entry = NULL;
while (*(char *) line_ptr != '\0') {
cur_file_entry = (Dwarf_File_Entry)
_dwarf_get_alloc(dbg, DW_DLA_FILE_ENTRY, 1);
if (cur_file_entry == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
cur_file_entry->fi_file_name = (Dwarf_Small *) line_ptr;
line_ptr = line_ptr + strlen((char *) line_ptr) + 1;
cur_file_entry->fi_dir_index =
(Dwarf_Sword) _dwarf_decode_u_leb128(line_ptr,
&leb128_length);
line_ptr = line_ptr + leb128_length;
cur_file_entry->fi_time_last_mod =
_dwarf_decode_u_leb128(line_ptr, &leb128_length);
line_ptr = line_ptr + leb128_length;
cur_file_entry->fi_file_length =
_dwarf_decode_u_leb128(line_ptr, &leb128_length);
line_ptr = line_ptr + leb128_length;
if (file_entries == NULL)
file_entries = cur_file_entry;
else
prev_file_entry->fi_next = cur_file_entry;
prev_file_entry = cur_file_entry;
file_entry_count++;
}
line_ptr++;
if (line_ptr != check_line_ptr + prologue_length) {
_dwarf_error(dbg, error, DW_DLE_LINE_PROLOG_LENGTH_BAD);
return (DW_DLV_ERROR);
}
/* Set up context structure for this set of lines. */
line_context = (Dwarf_Line_Context)
_dwarf_get_alloc(dbg, DW_DLA_LINE_CONTEXT, 1);
if (line_context == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
/* Initialize the state machine. */
address = 0;
file = 1;
line = 1;
column = 0;
is_stmt = default_is_stmt;
basic_block = false;
end_sequence = false;
/* Start of statement program. */
while (line_ptr < line_ptr_end) {
int type;
opcode = *(Dwarf_Small *) line_ptr;
line_ptr++;
/* 'type' is the output */
WHAT_IS_OPCODE(type, opcode, special_opcode_base,
opcode_length, line_ptr);
if (type == LOP_DISCARD) {
/* do nothing, necessary ops done */
} else if (type == LOP_SPECIAL) {
/* This op code is a special op in the object, no matter
that it might fall into the standard op range in this
compile Thatis, these are special opcodes between
special_opcode_base and MAX_LINE_OP_CODE. (including
special_opcode_base and MAX_LINE_OP_CODE) */
opcode = opcode - special_opcode_base;
address = address + minimum_instruction_length *
(opcode / line_range);
line = line + line_base + opcode % line_range;
if (dolines) {
curr_line =
(Dwarf_Line) _dwarf_get_alloc(dbg, DW_DLA_LINE, 1);
if (curr_line == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_line->li_address = address;
curr_line->li_addr_line.li_l_data.li_file =
(Dwarf_Sword) file;
curr_line->li_addr_line.li_l_data.li_line =
(Dwarf_Sword) line;
curr_line->li_addr_line.li_l_data.li_column =
(Dwarf_Half) column;
curr_line->li_addr_line.li_l_data.li_is_stmt = is_stmt;
curr_line->li_addr_line.li_l_data.li_basic_block =
basic_block;
curr_line->li_addr_line.li_l_data.li_end_sequence =
end_sequence;
curr_line->li_context = line_context;
line_count++;
chain_line = (Dwarf_Chain)
_dwarf_get_alloc(dbg, DW_DLA_CHAIN, 1);
if (chain_line == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
chain_line->ch_item = curr_line;
if (head_chain == NULL)
head_chain = curr_chain = chain_line;
else {
curr_chain->ch_next = chain_line;
curr_chain = chain_line;
}
}
basic_block = false;
} else if (type == LOP_STANDARD) {
switch (opcode) {
case DW_LNS_copy:{
if (opcode_length[DW_LNS_copy] != 0) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
if (dolines) {
curr_line =
(Dwarf_Line) _dwarf_get_alloc(dbg,
DW_DLA_LINE,
1);
if (curr_line == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_line->li_address = address;
curr_line->li_addr_line.li_l_data.li_file =
(Dwarf_Sword) file;
curr_line->li_addr_line.li_l_data.li_line =
(Dwarf_Sword) line;
curr_line->li_addr_line.li_l_data.li_column =
(Dwarf_Half) column;
curr_line->li_addr_line.li_l_data.li_is_stmt =
is_stmt;
curr_line->li_addr_line.li_l_data.
li_basic_block = basic_block;
curr_line->li_addr_line.li_l_data.
li_end_sequence = end_sequence;
curr_line->li_context = line_context;
line_count++;
chain_line = (Dwarf_Chain)
_dwarf_get_alloc(dbg, DW_DLA_CHAIN, 1);
if (chain_line == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
chain_line->ch_item = curr_line;
if (head_chain == NULL)
head_chain = curr_chain = chain_line;
else {
curr_chain->ch_next = chain_line;
curr_chain = chain_line;
}
}
basic_block = false;
break;
}
case DW_LNS_advance_pc:{
Dwarf_Unsigned utmp2;
if (opcode_length[DW_LNS_advance_pc] != 1) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
DECODE_LEB128_UWORD(line_ptr, utmp2)
leb128_num = (Dwarf_Word) utmp2;
address =
address +
minimum_instruction_length * leb128_num;
break;
}
case DW_LNS_advance_line:{
Dwarf_Signed stmp;
if (opcode_length[DW_LNS_advance_line] != 1) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
DECODE_LEB128_SWORD(line_ptr, stmp)
advance_line = (Dwarf_Sword) stmp;
line = line + advance_line;
break;
}
case DW_LNS_set_file:{
Dwarf_Unsigned utmp2;
if (opcode_length[DW_LNS_set_file] != 1) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
DECODE_LEB128_UWORD(line_ptr, utmp2)
file = (Dwarf_Word) utmp2;
break;
}
case DW_LNS_set_column:{
Dwarf_Unsigned utmp2;
if (opcode_length[DW_LNS_set_column] != 1) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
DECODE_LEB128_UWORD(line_ptr, utmp2)
column = (Dwarf_Word) utmp2;
break;
}
case DW_LNS_negate_stmt:{
if (opcode_length[DW_LNS_negate_stmt] != 0) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
is_stmt = !is_stmt;
break;
}
case DW_LNS_set_basic_block:{
if (opcode_length[DW_LNS_set_basic_block] != 0) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
basic_block = true;
break;
}
case DW_LNS_const_add_pc:{
opcode = MAX_LINE_OP_CODE - special_opcode_base;
address = address + minimum_instruction_length *
(opcode / line_range);
break;
}
case DW_LNS_fixed_advance_pc:{
if (opcode_length[DW_LNS_fixed_advance_pc] != 1) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
READ_UNALIGNED(dbg, fixed_advance_pc, Dwarf_Half,
line_ptr, sizeof(Dwarf_Half));
line_ptr += sizeof(Dwarf_Half);
address = address + fixed_advance_pc;
break;
}
}
} else if (type == LOP_EXTENDED) {
Dwarf_Unsigned utmp3;
DECODE_LEB128_UWORD(line_ptr, utmp3)
instr_length = (Dwarf_Word) utmp3;
/* Dwarf_Small is a ubyte and the extended opcode
is a ubyte, though not stated as clearly in
the 2.0.0 spec as one might hope.
*/
ext_opcode = *(Dwarf_Small *) line_ptr;
line_ptr++;
switch (ext_opcode) {
case DW_LNE_end_sequence:{
end_sequence = true;
if (dolines) {
curr_line = (Dwarf_Line)
_dwarf_get_alloc(dbg, DW_DLA_LINE, 1);
if (curr_line == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_line->li_address = address;
curr_line->li_addr_line.li_l_data.li_file =
(Dwarf_Sword) file;
curr_line->li_addr_line.li_l_data.li_line =
(Dwarf_Sword) line;
curr_line->li_addr_line.li_l_data.li_column =
(Dwarf_Half) column;
curr_line->li_addr_line.li_l_data.li_is_stmt =
default_is_stmt;
curr_line->li_addr_line.li_l_data.
li_basic_block = basic_block;
curr_line->li_addr_line.li_l_data.
li_end_sequence = end_sequence;
curr_line->li_context = line_context;
line_count++;
chain_line = (Dwarf_Chain)
_dwarf_get_alloc(dbg, DW_DLA_CHAIN, 1);
if (chain_line == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
chain_line->ch_item = curr_line;
if (head_chain == NULL)
head_chain = curr_chain = chain_line;
else {
curr_chain->ch_next = chain_line;
curr_chain = chain_line;
}
}
address = 0;
file = 1;
line = 1;
column = 0;
is_stmt = default_is_stmt;
basic_block = false;
end_sequence = false;
break;
}
case DW_LNE_set_address:{
if (instr_length - 1 == dbg->de_pointer_size) {
READ_UNALIGNED(dbg, address, Dwarf_Addr,
line_ptr, dbg->de_pointer_size);
if (doaddrs) {
curr_line =
(Dwarf_Line) _dwarf_get_alloc(dbg,
DW_DLA_LINE,
1);
if (curr_line == NULL) {
_dwarf_error(dbg, error,
DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_line->li_address = address;
curr_line->li_addr_line.li_offset =
line_ptr - dbg->de_debug_line;
line_count++;
chain_line = (Dwarf_Chain)
_dwarf_get_alloc(dbg, DW_DLA_CHAIN, 1);
if (chain_line == NULL) {
_dwarf_error(dbg, error,
DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
chain_line->ch_item = curr_line;
if (head_chain == NULL)
head_chain = curr_chain = chain_line;
else {
curr_chain->ch_next = chain_line;
curr_chain = chain_line;
}
}
line_ptr += dbg->de_pointer_size;
} else {
_dwarf_error(dbg, error,
DW_DLE_LINE_SET_ADDR_ERROR);
return (DW_DLV_ERROR);
}
break;
}
case DW_LNE_define_file:{
if (dolines) {
cur_file_entry = (Dwarf_File_Entry)
_dwarf_get_alloc(dbg, DW_DLA_FILE_ENTRY, 1);
if (cur_file_entry == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
cur_file_entry->fi_file_name =
(Dwarf_Small *) line_ptr;
line_ptr =
line_ptr + strlen((char *) line_ptr) + 1;
cur_file_entry->fi_dir_index =
(Dwarf_Sword)
_dwarf_decode_u_leb128(line_ptr,
&leb128_length);
line_ptr = line_ptr + leb128_length;
cur_file_entry->fi_time_last_mod =
_dwarf_decode_u_leb128(line_ptr,
&leb128_length);
line_ptr = line_ptr + leb128_length;
cur_file_entry->fi_file_length =
_dwarf_decode_u_leb128(line_ptr,
&leb128_length);
line_ptr = line_ptr + leb128_length;
if (file_entries == NULL)
file_entries = cur_file_entry;
else
prev_file_entry->fi_next = cur_file_entry;
prev_file_entry = cur_file_entry;
file_entry_count++;
}
break;
}
default:{
_dwarf_error(dbg, error,
DW_DLE_LINE_EXT_OPCODE_BAD);
return (DW_DLV_ERROR);
}
}
}
}
block_line = (Dwarf_Line *)
_dwarf_get_alloc(dbg, DW_DLA_LIST, line_count);
if (block_line == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_chain = head_chain;
for (i = 0; i < line_count; i++) {
*(block_line + i) = curr_chain->ch_item;
head_chain = curr_chain;
curr_chain = curr_chain->ch_next;
dwarf_dealloc(dbg, head_chain, DW_DLA_CHAIN);
}
line_context->lc_file_entries = file_entries;
line_context->lc_file_entry_count = file_entry_count;
line_context->lc_include_directories = include_directories;
line_context->lc_include_directories_count =
include_directories_count;
line_context->lc_line_count = line_count;
line_context->lc_compilation_directory = comp_dir;
line_context->lc_version_number = version;
line_context->lc_dbg = dbg;
*count = line_count;
*linebuf = block_line;
return (DW_DLV_OK);
}
int
_dwarf_extract_string_offset_via_str_offsets(Dwarf_Debug dbg,
Dwarf_Small *info_data_ptr,
UNUSEDARG Dwarf_Half attrnum,
Dwarf_Half attrform,
Dwarf_CU_Context cu_context,
Dwarf_Unsigned *str_sect_offset_out,
Dwarf_Error *error)
{
Dwarf_Unsigned offsettostr= 0;
Dwarf_Unsigned offset_base = 0;
Dwarf_Word leb_len = 0;
Dwarf_Unsigned index_to_offset_entry = 0;
Dwarf_Unsigned offsetintable = 0;
Dwarf_Unsigned end_offsetintable = 0;
int res = 0;
res = _dwarf_load_section(dbg, &dbg->de_debug_str_offsets,error);
if (res != DW_DLV_OK) {
return res;
}
index_to_offset_entry = (_dwarf_decode_u_leb128(info_data_ptr, &leb_len));
/* DW_FORM_GNU_str_index has no 'base' value.
DW_FORM_strx has a base value
for the offset table */
if( attrform == DW_FORM_strx) {
res = _dwarf_get_string_base_attr_value(dbg,cu_context,
&offset_base,error);
if (res != DW_DLV_OK) {
/* DW_DLV_NO_ENTRY could be acceptable when
a producer knows that the base offset will be zero.
Hence DW_AT_str_offsets_base missing.
DWARF5 draft as of September 2015 allows the attribute
to be missing (it's up to the compilation tools to
make sure that has the correct effect).
*/
return res;
}
}
offsetintable = (index_to_offset_entry*cu_context->cc_length_size )
+ offset_base;
{
Dwarf_Unsigned fissoff = 0;
Dwarf_Unsigned size = 0;
fissoff = _dwarf_get_dwp_extra_offset(&cu_context->cc_dwp_offsets,
DW_SECT_STR_OFFSETS, &size);
offsetintable += fissoff;
}
end_offsetintable = offsetintable + cu_context->cc_length_size;
/* The offsets table is a series of offset-size entries.
The == case in the test applies when we are at the last table
entry, so == is not an error, hence only test >
*/
if (end_offsetintable > dbg->de_debug_str_offsets.dss_size ) {
_dwarf_error(dbg, error, DW_DLE_ATTR_FORM_SIZE_BAD);
return (DW_DLV_ERROR);
}
/* Now read the string offset from the offset table. */
READ_UNALIGNED(dbg,offsettostr,Dwarf_Unsigned,
dbg->de_debug_str_offsets.dss_data + offsetintable,
cu_context->cc_length_size);
*str_sect_offset_out = offsettostr;
return DW_DLV_OK;
}
/*
This function returns the count of the number of
aranges in the .debug_aranges section. It sets
aranges to point to a block of Dwarf_Arange's
describing the arange's. It returns DW_DLV_ERROR
on error.
Must be identical in most aspects to
dwarf_get_aranges_addr_offsets!
*/
int
dwarf_get_aranges(Dwarf_Debug dbg,
Dwarf_Arange ** aranges,
Dwarf_Signed * returned_count, Dwarf_Error * error)
{
/* Sweeps the .debug_aranges section. */
Dwarf_Small *arange_ptr;
/*
Start of arange header. Used for rounding offset of arange_ptr
to twice the tuple size. Libdwarf requirement. */
Dwarf_Small *header_ptr;
/* Version of .debug_aranges header. */
Dwarf_Half version;
/* Offset of current set of aranges into .debug_info. */
Dwarf_Off info_offset;
/* Size in bytes of addresses in target. */
Dwarf_Small address_size;
/* Size in bytes of segment offsets in target. */
Dwarf_Small segment_size;
Dwarf_Small remainder;
/* Count of total number of aranges. */
Dwarf_Unsigned arange_count = 0;
/* Start address of arange. */
Dwarf_Addr range_address;
/* Length of arange. */
Dwarf_Unsigned range_length;
Dwarf_Arange arange, *arange_block;
Dwarf_Unsigned i;
/* Used to chain Dwarf_Aranges structs. */
Dwarf_Chain curr_chain, prev_chain, head_chain = NULL;
int res;
/* ***** BEGIN CODE ***** */
if (dbg == NULL) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return (DW_DLV_ERROR);
}
res =
_dwarf_load_section(dbg,
dbg->de_debug_aranges_index,
&dbg->de_debug_aranges,
error);
if (res != DW_DLV_OK) {
return res;
}
arange_ptr = dbg->de_debug_aranges;
do {
/* Length of current set of aranges. */
Dwarf_Unsigned length;
Dwarf_Small *arange_ptr_past_end = 0;
int local_length_size;
/*REFERENCED*/ /* Not used in this instance of the macro */
int local_extension_size;
header_ptr = arange_ptr;
/* READ_AREA_LENGTH updates arange_ptr for consumed bytes */
READ_AREA_LENGTH(dbg, length, Dwarf_Unsigned,
arange_ptr, local_length_size,
local_extension_size);
arange_ptr_past_end = arange_ptr + length;
READ_UNALIGNED(dbg, version, Dwarf_Half,
arange_ptr, sizeof(Dwarf_Half));
arange_ptr += sizeof(Dwarf_Half);
length = length - sizeof(Dwarf_Half);
if (version != CURRENT_VERSION_STAMP) {
_dwarf_error(dbg, error, DW_DLE_VERSION_STAMP_ERROR);
return (DW_DLV_ERROR);
}
READ_UNALIGNED(dbg, info_offset, Dwarf_Off,
arange_ptr, local_length_size);
arange_ptr += local_length_size;
length = length - local_length_size;
if (info_offset >= dbg->de_debug_info_size) {
_dwarf_error(dbg, error, DW_DLE_ARANGE_OFFSET_BAD);
return (DW_DLV_ERROR);
}
address_size = *(Dwarf_Small *) arange_ptr;
if (address_size != dbg->de_pointer_size) {
/* Internal error of some kind */
_dwarf_error(dbg, error, DW_DLE_BADBITC);
return (DW_DLV_ERROR);
}
arange_ptr = arange_ptr + sizeof(Dwarf_Small);
length = length - sizeof(Dwarf_Small);
segment_size = *(Dwarf_Small *) arange_ptr;
arange_ptr = arange_ptr + sizeof(Dwarf_Small);
length = length - sizeof(Dwarf_Small);
if (segment_size != 0) {
_dwarf_error(dbg, error, DW_DLE_SEGMENT_SIZE_BAD);
return (DW_DLV_ERROR);
}
/* Round arange_ptr offset to next multiple of address_size. */
remainder = (Dwarf_Unsigned) (arange_ptr - header_ptr) %
(2 * address_size);
if (remainder != 0) {
arange_ptr = arange_ptr + (2 * address_size) - remainder;
length = length - ((2 * address_size) - remainder);
}
do {
READ_UNALIGNED(dbg, range_address, Dwarf_Addr,
arange_ptr, address_size);
arange_ptr += address_size;
length = length - address_size;
READ_UNALIGNED(dbg, range_length, Dwarf_Unsigned,
arange_ptr, address_size);
arange_ptr += address_size;
length = length - address_size;
if (range_address != 0 || range_length != 0) {
arange = (Dwarf_Arange)
_dwarf_get_alloc(dbg, DW_DLA_ARANGE, 1);
if (arange == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
arange->ar_address = range_address;
arange->ar_length = range_length;
arange->ar_info_offset = info_offset;
arange->ar_dbg = dbg;
arange_count++;
curr_chain = (Dwarf_Chain)
_dwarf_get_alloc(dbg, DW_DLA_CHAIN, 1);
if (curr_chain == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_chain->ch_item = arange;
if (head_chain == NULL)
head_chain = prev_chain = curr_chain;
else {
prev_chain->ch_next = curr_chain;
prev_chain = curr_chain;
}
}
} while (range_address != 0 || range_length != 0);
/* A compiler could emit some padding bytes here.
dwarf2/3 (dwarf3 draft8 sec 7.20) does not clearly make
extra padding bytes illegal. */
if(arange_ptr_past_end < arange_ptr) {
_dwarf_error(dbg, error, DW_DLE_ARANGE_LENGTH_BAD);
return (DW_DLV_ERROR);
}
/* For most compilers, arange_ptr == arange_ptr_past_end
at this point. But not if there were padding bytes */
arange_ptr = arange_ptr_past_end;
} while (arange_ptr <
dbg->de_debug_aranges + dbg->de_debug_aranges_size);
if (arange_ptr !=
dbg->de_debug_aranges + dbg->de_debug_aranges_size) {
_dwarf_error(dbg, error, DW_DLE_ARANGE_DECODE_ERROR);
return (DW_DLV_ERROR);
}
arange_block = (Dwarf_Arange *)
_dwarf_get_alloc(dbg, DW_DLA_LIST, arange_count);
if (arange_block == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
curr_chain = head_chain;
for (i = 0; i < arange_count; i++) {
*(arange_block + i) = curr_chain->ch_item;
prev_chain = curr_chain;
curr_chain = curr_chain->ch_next;
dwarf_dealloc(dbg, prev_chain, DW_DLA_CHAIN);
}
*aranges = arange_block;
*returned_count = (arange_count);
return DW_DLV_OK;
}
/*
return DW_DLV_OK if ok. else DW_DLV_NO_ENTRY or DW_DLV_ERROR
*/
int
_dwarf_internal_printlines(Dwarf_Die die, Dwarf_Error * error)
{
/*
This pointer is used to scan the portion of the .debug_line
section for the current cu. */
Dwarf_Small *line_ptr;
Dwarf_Small *orig_line_ptr;
/*
This points to the last byte of the .debug_line portion for the
current cu. */
Dwarf_Small *line_ptr_end;
/*
This points to the end of the statement program prologue for the
current cu, and serves to check that the prologue was correctly
decoded. */
Dwarf_Small *check_line_ptr;
/*
Pointer to a DW_AT_stmt_list attribute in case it exists in the
die. */
Dwarf_Attribute stmt_list_attr;
/* Pointer to DW_AT_comp_dir attribute in die. */
Dwarf_Attribute comp_dir_attr;
/* Pointer to name of compilation directory. */
Dwarf_Small *comp_dir = NULL;
/*
Offset into .debug_line specified by a DW_AT_stmt_list
attribute. */
Dwarf_Unsigned line_offset;
/* These are the fields of the statement program header. */
Dwarf_Unsigned total_length;
Dwarf_Half version;
Dwarf_Unsigned prologue_length;
Dwarf_Small minimum_instruction_length;
Dwarf_Small default_is_stmt;
Dwarf_Sbyte line_base;
Dwarf_Small line_range;
Dwarf_Small opcode_base;
Dwarf_Small *opcode_length;
/* These are the state machine state variables. */
Dwarf_Addr address;
Dwarf_Word file;
Dwarf_Word line;
Dwarf_Word column;
Dwarf_Bool is_stmt;
Dwarf_Bool basic_block;
Dwarf_Bool end_sequence;
Dwarf_Sword i, file_entry_count, include_directories_count;
/*
This is the current opcode read from the statement program. */
Dwarf_Small opcode;
/*
Pointer to a Dwarf_Line_Context_s structure that contains the
context such as file names and include directories for the set
of lines being generated. */
Dwarf_Line_Context line_context;
/*
These variables are used to decode leb128 numbers. Leb128_num
holds the decoded number, and leb128_length is its length in
bytes. */
Dwarf_Word leb128_num;
Dwarf_Word leb128_length;
Dwarf_Sword advance_line;
/*
This is the operand of the latest fixed_advance_pc extended
opcode. */
Dwarf_Half fixed_advance_pc;
/* This is the length of an extended opcode instr. */
Dwarf_Word instr_length;
Dwarf_Small ext_opcode;
int local_length_size;
/*REFERENCED*/ /* Not used in this instance of the macro */
int local_extension_size;
/* The Dwarf_Debug this die belongs to. */
Dwarf_Debug dbg;
int resattr;
int lres;
int res;
/* ***** BEGIN CODE ***** */
if (error != NULL)
*error = NULL;
CHECK_DIE(die, DW_DLV_ERROR)
dbg = die->di_cu_context->cc_dbg;
res =
_dwarf_load_section(dbg,
dbg->de_debug_line_index,
&dbg->de_debug_line,
error);
if (res != DW_DLV_OK) {
return res;
}
resattr = dwarf_attr(die, DW_AT_stmt_list, &stmt_list_attr, error);
if (resattr != DW_DLV_OK) {
return resattr;
}
lres = dwarf_formudata(stmt_list_attr, &line_offset, error);
if (lres != DW_DLV_OK) {
return lres;
}
if (line_offset >= dbg->de_debug_line_size) {
_dwarf_error(dbg, error, DW_DLE_LINE_OFFSET_BAD);
return (DW_DLV_ERROR);
}
orig_line_ptr = dbg->de_debug_line;
line_ptr = dbg->de_debug_line + line_offset;
dwarf_dealloc(dbg, stmt_list_attr, DW_DLA_ATTR);
/*
If die has DW_AT_comp_dir attribute, get the string that names
the compilation directory. */
resattr = dwarf_attr(die, DW_AT_comp_dir, &comp_dir_attr, error);
if (resattr == DW_DLV_ERROR) {
return resattr;
}
if (resattr == DW_DLV_OK) {
int cres;
char *cdir;
cres = dwarf_formstring(comp_dir_attr, &cdir, error);
if (cres == DW_DLV_ERROR) {
return cres;
} else if (cres == DW_DLV_OK) {
comp_dir = (Dwarf_Small *) cdir;
}
}
if (resattr == DW_DLV_OK) {
dwarf_dealloc(dbg, comp_dir_attr, DW_DLA_ATTR);
}
/*
Following is a straightforward decoding of the statement
program prologue information. */
/* READ_AREA_LENGTH updates line_ptr for consumed bytes */
READ_AREA_LENGTH(dbg, total_length, Dwarf_Unsigned,
line_ptr, local_length_size, local_extension_size);
line_ptr_end = line_ptr + total_length;
if (line_ptr_end > dbg->de_debug_line + dbg->de_debug_line_size) {
_dwarf_error(dbg, error, DW_DLE_DEBUG_LINE_LENGTH_BAD);
return (DW_DLV_ERROR);
}
printf("total line info length %ld bytes, "
"line offset 0x%llx %lld\n",
(long) total_length,
(long long) line_offset, (long long) line_offset);
printf("compilation_directory %s\n",
comp_dir ? ((char *) comp_dir) : "");
READ_UNALIGNED(dbg, version, Dwarf_Half,
line_ptr, sizeof(Dwarf_Half));
line_ptr += sizeof(Dwarf_Half);
if (version != CURRENT_VERSION_STAMP) {
_dwarf_error(dbg, error, DW_DLE_VERSION_STAMP_ERROR);
return (DW_DLV_ERROR);
}
READ_UNALIGNED(dbg, prologue_length, Dwarf_Unsigned,
line_ptr, local_length_size);
line_ptr += local_length_size;
check_line_ptr = line_ptr;
minimum_instruction_length = *(Dwarf_Small *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Small);
default_is_stmt = *(Dwarf_Small *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Small);
line_base = *(Dwarf_Sbyte *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Sbyte);
line_range = *(Dwarf_Small *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Small);
opcode_base = *(Dwarf_Small *) line_ptr;
line_ptr = line_ptr + sizeof(Dwarf_Small);
printf(" min instruction length %d\n",
(int) minimum_instruction_length);
printf(" default is stmt %d\n", (int) default_is_stmt);
printf(" line base %d\n", (int) line_base);
printf(" line_range %d\n", (int) line_range);
opcode_length = (Dwarf_Small *)
alloca(sizeof(Dwarf_Small) * opcode_base);
for (i = 1; i < opcode_base; i++) {
opcode_length[i] = *(Dwarf_Small *) line_ptr;
printf(" opcode[%d] length %d\n", (int) i,
(int) opcode_length[i]);
line_ptr = line_ptr + sizeof(Dwarf_Small);
}
include_directories_count = 0;
while ((*(char *) line_ptr) != '\0') {
printf(" include dir[%d] %s\n",
(int) include_directories_count, line_ptr);
line_ptr = line_ptr + strlen((char *) line_ptr) + 1;
include_directories_count++;
}
line_ptr++;
file_entry_count = 0;
while (*(char *) line_ptr != '\0') {
Dwarf_Unsigned tlm2;
Dwarf_Unsigned di;
Dwarf_Unsigned fl;
printf(" file[%d] %s\n",
(int) file_entry_count, (char *) line_ptr);
line_ptr = line_ptr + strlen((char *) line_ptr) + 1;
di = _dwarf_decode_u_leb128(line_ptr, &leb128_length);
line_ptr = line_ptr + leb128_length;
tlm2 = _dwarf_decode_u_leb128(line_ptr, &leb128_length);
line_ptr = line_ptr + leb128_length;
fl = _dwarf_decode_u_leb128(line_ptr, &leb128_length);
line_ptr = line_ptr + leb128_length;
printf(" dir index %d\n", (int) di);
{
time_t tt = (time_t) tlm2;
printf(" last time 0x%x %s", /* ctime supplies
newline */
(unsigned) tlm2, ctime(&tt));
}
printf(" file length %ld 0x%lx\n",
(long) fl, (unsigned long) fl);
file_entry_count++;
}
line_ptr++;
if (line_ptr != check_line_ptr + prologue_length) {
_dwarf_error(dbg, error, DW_DLE_LINE_PROLOG_LENGTH_BAD);
return (DW_DLV_ERROR);
}
/* Set up context structure for this set of lines. */
line_context = (Dwarf_Line_Context)
_dwarf_get_alloc(dbg, DW_DLA_LINE_CONTEXT, 1);
if (line_context == NULL) {
_dwarf_error(dbg, error, DW_DLE_ALLOC_FAIL);
return (DW_DLV_ERROR);
}
printf(" statement prog offset in section: %lld 0x%llx\n",
(long long) (line_ptr - orig_line_ptr),
(long long) (line_ptr - orig_line_ptr));
/* Initialize the state machine. */
address = 0;
file = 1;
line = 1;
column = 0;
is_stmt = default_is_stmt;
basic_block = false;
end_sequence = false;
print_line_header();
/* Start of statement program. */
while (line_ptr < line_ptr_end) {
int type;
printf(" [0x%06llx] ", (long long) (line_ptr - orig_line_ptr));
opcode = *(Dwarf_Small *) line_ptr;
line_ptr++;
/* 'type' is the output */
WHAT_IS_OPCODE(type, opcode, opcode_base,
opcode_length, line_ptr);
if (type == LOP_DISCARD) {
/* do nothing, necessary ops done */
} else if (type == LOP_SPECIAL) {
/* This op code is a special op in the object, no matter
that it might fall into the standard op range in this
compile Thatis, these are special opcodes between
special_opcode_base and MAX_LINE_OP_CODE. (including
special_opcode_base and MAX_LINE_OP_CODE) */
char special[50];
unsigned origop = opcode;
opcode = opcode - opcode_base;
address = address + minimum_instruction_length *
(opcode / line_range);
line = line + line_base + opcode % line_range;
sprintf(special, "Specialop %3u", origop);
print_line_detail(special,
opcode, address, (int) file, line, column,
is_stmt, basic_block, end_sequence);
basic_block = false;
} else if (type == LOP_STANDARD) {
switch (opcode) {
case DW_LNS_copy:{
if (opcode_length[DW_LNS_copy] != 0) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
print_line_detail("DW_LNS_copy",
opcode, address, file, line,
column, is_stmt, basic_block,
end_sequence);
basic_block = false;
break;
}
case DW_LNS_advance_pc:{
Dwarf_Unsigned utmp2;
if (opcode_length[DW_LNS_advance_pc] != 1) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
DECODE_LEB128_UWORD(line_ptr, utmp2)
printf("DW_LNS_advance_pc val %lld 0x%llx\n",
(long long) (Dwarf_Word) utmp2,
(long long) (Dwarf_Word) utmp2);
leb128_num = (Dwarf_Word) utmp2;
address =
address +
minimum_instruction_length * leb128_num;
break;
}
case DW_LNS_advance_line:{
Dwarf_Signed stmp;
if (opcode_length[DW_LNS_advance_line] != 1) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
DECODE_LEB128_SWORD(line_ptr, stmp)
advance_line = (Dwarf_Sword) stmp;
printf("DW_LNS_advance_line val %lld 0x%llx\n",
(long long) advance_line,
(long long) advance_line);
line = line + advance_line;
break;
}
case DW_LNS_set_file:{
Dwarf_Unsigned utmp2;
if (opcode_length[DW_LNS_set_file] != 1) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
DECODE_LEB128_UWORD(line_ptr, utmp2)
file = (Dwarf_Word) utmp2;
printf("DW_LNS_set_file %ld\n", (long) file);
break;
}
case DW_LNS_set_column:{
Dwarf_Unsigned utmp2;
if (opcode_length[DW_LNS_set_column] != 1) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
DECODE_LEB128_UWORD(line_ptr, utmp2)
column = (Dwarf_Word) utmp2;
printf("DW_LNS_set_column val %lld 0x%llx\n",
(long long) column, (long long) column);
break;
}
case DW_LNS_negate_stmt:{
if (opcode_length[DW_LNS_negate_stmt] != 0) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
is_stmt = !is_stmt;
printf("DW_LNS_negate_stmt\n");
break;
}
case DW_LNS_set_basic_block:{
if (opcode_length[DW_LNS_set_basic_block] != 0) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
printf("DW_LNS_set_basic_block\n");
basic_block = true;
break;
}
case DW_LNS_const_add_pc:{
opcode = MAX_LINE_OP_CODE - opcode_base;
address = address + minimum_instruction_length *
(opcode / line_range);
printf("DW_LNS_const_add_pc new address 0x%llx\n",
(long long) address);
break;
}
case DW_LNS_fixed_advance_pc:{
if (opcode_length[DW_LNS_fixed_advance_pc] != 1) {
_dwarf_error(dbg, error,
DW_DLE_LINE_NUM_OPERANDS_BAD);
return (DW_DLV_ERROR);
}
READ_UNALIGNED(dbg, fixed_advance_pc, Dwarf_Half,
line_ptr, sizeof(Dwarf_Half));
line_ptr += sizeof(Dwarf_Half);
address = address + fixed_advance_pc;
printf("DW_LNS_fixed_advance_pc val %lld 0x%llx"
" new address 0x%llx\n",
(long long) fixed_advance_pc,
(long long) fixed_advance_pc,
(long long) address);
break;
}
}
} else if (type == LOP_EXTENDED) {
Dwarf_Unsigned utmp3;
DECODE_LEB128_UWORD(line_ptr, utmp3)
instr_length = (Dwarf_Word) utmp3;
ext_opcode = *(Dwarf_Small *) line_ptr;
line_ptr++;
switch (ext_opcode) {
case DW_LNE_end_sequence:{
end_sequence = true;
print_line_detail("DW_LNE_end_sequence extended",
opcode, address, file, line,
column, is_stmt, basic_block,
end_sequence);
address = 0;
file = 1;
line = 1;
column = 0;
is_stmt = default_is_stmt;
basic_block = false;
end_sequence = false;
break;
}
case DW_LNE_set_address:{
if (instr_length - 1 == dbg->de_pointer_size) {
READ_UNALIGNED(dbg, address, Dwarf_Addr,
line_ptr, dbg->de_pointer_size);
line_ptr += dbg->de_pointer_size;
printf("DW_LNE_set_address address 0x%llx\n",
(long long) address);
} else {
_dwarf_error(dbg, error,
DW_DLE_LINE_SET_ADDR_ERROR);
return (DW_DLV_ERROR);
}
break;
}
case DW_LNE_define_file:{
Dwarf_Small *fn;
Dwarf_Signed di;
Dwarf_Signed tlm;
Dwarf_Unsigned fl;
fn = (Dwarf_Small *) line_ptr;
line_ptr = line_ptr + strlen((char *) line_ptr) + 1;
di = _dwarf_decode_u_leb128(line_ptr,
&leb128_length);
line_ptr = line_ptr + leb128_length;
tlm =
_dwarf_decode_u_leb128(line_ptr,
&leb128_length);
line_ptr = line_ptr + leb128_length;
fl = _dwarf_decode_u_leb128(line_ptr,
&leb128_length);
line_ptr = line_ptr + leb128_length;
printf("DW_LNE_define_file %s \n", fn);
printf(" dir index %d\n", (int) di);
{
time_t tt3 = (time_t) tlm;
/* ctime supplies newline */
printf(" last time 0x%x %s",
(unsigned) tlm, ctime(&tt3));
}
printf(" file length %ld 0x%lx\n",
(long) fl, (unsigned long) fl);
break;
}
default:{
_dwarf_error(dbg, error,
DW_DLE_LINE_EXT_OPCODE_BAD);
return (DW_DLV_ERROR);
}
}
}
}
return (DW_DLV_OK);
}
