static gboolean
mono_blob_entry_equal (const char *str1, const char *str2) {
MONO_REQ_GC_NEUTRAL_MODE;
int len, len2;
const char *end1;
const char *end2;
len = mono_metadata_decode_blob_size (str1, &end1);
len2 = mono_metadata_decode_blob_size (str2, &end2);
if (len != len2)
return 0;
return memcmp (end1, end2, len) == 0;
}
static int
mono_blob_entry_hash (const char* str)
{
MONO_REQ_GC_NEUTRAL_MODE;
guint len, h;
const char *end;
len = mono_metadata_decode_blob_size (str, &str);
if (len > 0) {
end = str + len;
h = *str;
for (str += 1; str < end; str++)
h = (h << 5) - h + *str;
return h;
} else {
return 0;
}
}
MonoDebugMethodAsyncInfo*
mono_ppdb_lookup_method_async_debug_info (MonoDebugMethodInfo *minfo)
{
MonoMethod *method = minfo->method;
MonoPPDBFile *ppdb = minfo->handle->ppdb;
MonoImage *image = ppdb->image;
// Guid is taken from Roslyn source code:
// https://github.com/dotnet/roslyn/blob/1ad4b58/src/Dependencies/CodeAnalysis.Metadata/PortableCustomDebugInfoKinds.cs#L9
guint8 async_method_stepping_information_guid [16] = { 0xC5, 0x2A, 0xFD, 0x54, 0x25, 0xE9, 0x1A, 0x40, 0x9C, 0x2A, 0xF9, 0x4F, 0x17, 0x10, 0x72, 0xF8 };
char const *blob = lookup_custom_debug_information (image, method->token, 0, async_method_stepping_information_guid);
if (!blob)
return NULL;
int blob_len = mono_metadata_decode_blob_size (blob, &blob);
MonoDebugMethodAsyncInfo* res = g_new0 (MonoDebugMethodAsyncInfo, 1);
char const *pointer = blob;
// Format of this blob is taken from Roslyn source code:
// https://github.com/dotnet/roslyn/blob/1ad4b58/src/Compilers/Core/Portable/PEWriter/MetadataWriter.PortablePdb.cs#L566
pointer += 4;//catch_handler_offset
while (pointer - blob < blob_len) {
res->num_awaits++;
pointer += 8;//yield_offsets+resume_offsets
mono_metadata_decode_value (pointer, &pointer);//move_next_method_token
}
g_assert(pointer - blob == blob_len); //Check that we used all blob data
pointer = blob; //reset pointer after we figured num_awaits
res->yield_offsets = g_new (uint32_t, res->num_awaits);
res->resume_offsets = g_new (uint32_t, res->num_awaits);
res->move_next_method_token = g_new (uint32_t, res->num_awaits);
res->catch_handler_offset = read32 (pointer); pointer += 4;
for (int i = 0; i < res->num_awaits; i++) {
res->yield_offsets [i] = read32 (pointer); pointer += 4;
res->resume_offsets [i] = read32 (pointer); pointer += 4;
res->move_next_method_token [i] = mono_metadata_decode_value (pointer, &pointer);
}
return res;
}
static const unsigned char*
dis_one (GString *str, MonoDisHelper *dh, MonoMethod *method, const unsigned char *ip, const unsigned char *end)
{
MonoMethodHeader *header = mono_method_get_header (method);
const MonoOpcode *opcode;
guint32 label, token;
gint32 sval;
int i;
char *tmp;
const unsigned char* il_code = mono_method_header_get_code (header, NULL, NULL);
label = ip - il_code;
if (dh->indenter) {
tmp = dh->indenter (dh, method, label);
g_string_append (str, tmp);
g_free (tmp);
}
if (dh->label_format)
g_string_append_printf (str, dh->label_format, label);
i = mono_opcode_value (&ip, end);
ip++;
opcode = &mono_opcodes [i];
g_string_append_printf (str, "%-10s", mono_opcode_name (i));
switch (opcode->argument) {
case MonoInlineNone:
break;
case MonoInlineType:
case MonoInlineField:
case MonoInlineMethod:
case MonoInlineTok:
case MonoInlineSig:
token = read32 (ip);
if (dh->tokener) {
tmp = dh->tokener (dh, method, token);
g_string_append (str, tmp);
g_free (tmp);
} else {
g_string_append_printf (str, "0x%08x", token);
}
ip += 4;
break;
case MonoInlineString: {
const char *blob;
char *s;
size_t len2;
char *blob2 = NULL;
if (!image_is_dynamic (method->klass->image) && !method_is_dynamic (method)) {
token = read32 (ip);
blob = mono_metadata_user_string (method->klass->image, mono_metadata_token_index (token));
len2 = mono_metadata_decode_blob_size (blob, &blob);
len2 >>= 1;
#ifdef NO_UNALIGNED_ACCESS
/* The blob might not be 2 byte aligned */
blob2 = g_malloc ((len2 * 2) + 1);
memcpy (blob2, blob, len2 * 2);
#else
blob2 = (char*)blob;
#endif
#if G_BYTE_ORDER != G_LITTLE_ENDIAN
{
guint16 *buf = g_new (guint16, len2 + 1);
int i;
for (i = 0; i < len2; ++i)
buf [i] = GUINT16_FROM_LE (((guint16*)blob2) [i]);
s = g_utf16_to_utf8 (buf, len2, NULL, NULL, NULL);
g_free (buf);
}
#else
s = g_utf16_to_utf8 ((gunichar2*)blob2, len2, NULL, NULL, NULL);
#endif
g_string_append_printf (str, "\"%s\"", s);
g_free (s);
if (blob != blob2)
g_free (blob2);
}
ip += 4;
break;
}
case MonoInlineVar:
g_string_append_printf (str, "%d", read16 (ip));
ip += 2;
break;
case MonoShortInlineVar:
g_string_append_printf (str, "%d", (*ip));
ip ++;
break;
case MonoInlineBrTarget:
sval = read32 (ip);
ip += 4;
if (dh->label_target)
g_string_append_printf (str, dh->label_target, ip + sval - il_code);
else
g_string_append_printf (str, "%d", sval);
break;
case MonoShortInlineBrTarget:
sval = *(const signed char*)ip;
ip ++;
if (dh->label_target)
g_string_append_printf (str, dh->label_target, ip + sval - il_code);
else
g_string_append_printf (str, "%d", sval);
break;
case MonoInlineSwitch: {
const unsigned char *end;
sval = read32 (ip);
ip += 4;
end = ip + sval * 4;
g_string_append_c (str, '(');
for (i = 0; i < sval; ++i) {
if (i > 0)
g_string_append (str, ", ");
label = read32 (ip);
if (dh->label_target)
g_string_append_printf (str, dh->label_target, end + label - il_code);
else
g_string_append_printf (str, "%d", label);
ip += 4;
}
g_string_append_c (str, ')');
break;
}
case MonoInlineR: {
double r;
readr8 (ip, &r);
g_string_append_printf (str, "%g", r);
ip += 8;
break;
}
case MonoShortInlineR: {
float r;
readr4 (ip, &r);
g_string_append_printf (str, "%g", r);
ip += 4;
break;
}
case MonoInlineI:
g_string_append_printf (str, "%d", (gint32)read32 (ip));
ip += 4;
break;
case MonoShortInlineI:
g_string_append_printf (str, "%d", *(const signed char*)ip);
ip ++;
break;
case MonoInlineI8:
ip += 8;
break;
default:
g_assert_not_reached ();
}
void
mono_ppdb_get_seq_points (MonoDebugMethodInfo *minfo, char **source_file, GPtrArray **source_file_list, int **source_files, MonoSymSeqPoint **seq_points, int *n_seq_points)
{
MonoPPDBFile *ppdb = minfo->handle->ppdb;
MonoImage *image = ppdb->image;
MonoMethod *method = minfo->method;
MonoTableInfo *tables = image->tables;
guint32 cols [MONO_METHODBODY_SIZE];
const char *ptr;
const char *end;
MonoDebugSourceInfo *docinfo;
int i, method_idx, size, docidx, iloffset, delta_il, delta_lines, delta_cols, start_line, start_col, adv_line, adv_col;
gboolean first = TRUE, first_non_hidden = TRUE;
GArray *sps;
MonoSymSeqPoint sp;
GPtrArray *sfiles = NULL;
GPtrArray *sindexes = NULL;
if (source_file)
*source_file = NULL;
if (source_file_list)
*source_file_list = NULL;
if (source_files)
*source_files = NULL;
if (seq_points)
*seq_points = NULL;
if (n_seq_points)
*n_seq_points = 0;
if (source_file_list)
*source_file_list = sfiles = g_ptr_array_new ();
if (source_files)
sindexes = g_ptr_array_new ();
if (!method->token)
return;
method_idx = mono_metadata_token_index (method->token);
mono_metadata_decode_row (&tables [MONO_TABLE_METHODBODY], method_idx-1, cols, MONO_METHODBODY_SIZE);
docidx = cols [MONO_METHODBODY_DOCUMENT];
if (!cols [MONO_METHODBODY_SEQ_POINTS])
return;
ptr = mono_metadata_blob_heap (image, cols [MONO_METHODBODY_SEQ_POINTS]);
size = mono_metadata_decode_blob_size (ptr, &ptr);
end = ptr + size;
sps = g_array_new (FALSE, TRUE, sizeof (MonoSymSeqPoint));
/* Header */
/* LocalSignature */
mono_metadata_decode_value (ptr, &ptr);
if (docidx == 0)
docidx = mono_metadata_decode_value (ptr, &ptr);
docinfo = get_docinfo (ppdb, image, docidx);
if (sfiles)
g_ptr_array_add (sfiles, docinfo);
if (source_file)
*source_file = g_strdup (docinfo->source_file);
iloffset = 0;
start_line = 0;
start_col = 0;
while (ptr < end) {
delta_il = mono_metadata_decode_value (ptr, &ptr);
if (!first && delta_il == 0) {
/* subsequent-document-record */
docidx = mono_metadata_decode_value (ptr, &ptr);
docinfo = get_docinfo (ppdb, image, docidx);
if (sfiles)
g_ptr_array_add (sfiles, docinfo);
continue;
}
iloffset += delta_il;
first = FALSE;
delta_lines = mono_metadata_decode_value (ptr, &ptr);
if (delta_lines == 0)
delta_cols = mono_metadata_decode_value (ptr, &ptr);
else
delta_cols = mono_metadata_decode_signed_value (ptr, &ptr);
if (delta_lines == 0 && delta_cols == 0) {
/* Hidden sequence point */
continue;
}
if (first_non_hidden) {
start_line = mono_metadata_decode_value (ptr, &ptr);
start_col = mono_metadata_decode_value (ptr, &ptr);
} else {
adv_line = mono_metadata_decode_signed_value (ptr, &ptr);
adv_col = mono_metadata_decode_signed_value (ptr, &ptr);
start_line += adv_line;
start_col += adv_col;
}
first_non_hidden = FALSE;
memset (&sp, 0, sizeof (sp));
sp.il_offset = iloffset;
sp.line = start_line;
sp.column = start_col;
sp.end_line = start_line + delta_lines;
sp.end_column = start_col + delta_cols;
g_array_append_val (sps, sp);
if (source_files)
g_ptr_array_add (sindexes, GUINT_TO_POINTER (sfiles->len - 1));
}
if (n_seq_points) {
*n_seq_points = sps->len;
g_assert (seq_points);
*seq_points = g_new (MonoSymSeqPoint, sps->len);
memcpy (*seq_points, sps->data, sps->len * sizeof (MonoSymSeqPoint));
}
if (source_files) {
*source_files = g_new (int, sps->len);
for (i = 0; i < sps->len; ++i)
(*source_files)[i] = GPOINTER_TO_INT (g_ptr_array_index (sindexes, i));
g_ptr_array_free (sindexes, TRUE);
}
g_array_free (sps, TRUE);
}
/**
* mono_ppdb_lookup_location:
* \param minfo A \c MonoDebugMethodInfo which can be retrieved by mono_debug_lookup_method().
* \param offset IL offset within the corresponding method's CIL code.
*
* This function is similar to mono_debug_lookup_location(), but we
* already looked up the method and also already did the
* native address -> IL offset mapping.
*/
MonoDebugSourceLocation *
mono_ppdb_lookup_location (MonoDebugMethodInfo *minfo, uint32_t offset)
{
MonoPPDBFile *ppdb = minfo->handle->ppdb;
MonoImage *image = ppdb->image;
MonoMethod *method = minfo->method;
MonoTableInfo *tables = image->tables;
guint32 cols [MONO_METHODBODY_SIZE];
const char *ptr;
const char *end;
char *docname;
int idx, size, docidx, iloffset, delta_il, delta_lines, delta_cols, start_line, start_col, adv_line, adv_col;
gboolean first = TRUE, first_non_hidden = TRUE;
MonoDebugSourceLocation *location;
if (!method->token)
return NULL;
idx = mono_metadata_token_index (method->token);
mono_metadata_decode_row (&tables [MONO_TABLE_METHODBODY], idx-1, cols, MONO_METHODBODY_SIZE);
docidx = cols [MONO_METHODBODY_DOCUMENT];
if (!cols [MONO_METHODBODY_SEQ_POINTS])
return NULL;
ptr = mono_metadata_blob_heap (image, cols [MONO_METHODBODY_SEQ_POINTS]);
size = mono_metadata_decode_blob_size (ptr, &ptr);
end = ptr + size;
/* Header */
/* LocalSignature */
mono_metadata_decode_value (ptr, &ptr);
if (docidx == 0)
docidx = mono_metadata_decode_value (ptr, &ptr);
docname = get_docname (ppdb, image, docidx);
iloffset = 0;
start_line = 0;
start_col = 0;
while (ptr < end) {
delta_il = mono_metadata_decode_value (ptr, &ptr);
if (!first && delta_il == 0) {
/* document-record */
docidx = mono_metadata_decode_value (ptr, &ptr);
docname = get_docname (ppdb, image, docidx);
continue;
}
if (!first && iloffset + delta_il > offset)
break;
iloffset += delta_il;
first = FALSE;
delta_lines = mono_metadata_decode_value (ptr, &ptr);
if (delta_lines == 0)
delta_cols = mono_metadata_decode_value (ptr, &ptr);
else
delta_cols = mono_metadata_decode_signed_value (ptr, &ptr);
if (delta_lines == 0 && delta_cols == 0)
/* hidden-sequence-point-record */
continue;
if (first_non_hidden) {
start_line = mono_metadata_decode_value (ptr, &ptr);
start_col = mono_metadata_decode_value (ptr, &ptr);
} else {
adv_line = mono_metadata_decode_signed_value (ptr, &ptr);
adv_col = mono_metadata_decode_signed_value (ptr, &ptr);
start_line += adv_line;
start_col += adv_col;
}
first_non_hidden = FALSE;
}
location = g_new0 (MonoDebugSourceLocation, 1);
location->source_file = docname;
location->row = start_line;
location->il_offset = iloffset;
return location;
}
static MonoDebugSourceInfo*
get_docinfo (MonoPPDBFile *ppdb, MonoImage *image, int docidx)
{
MonoTableInfo *tables = image->tables;
guint32 cols [MONO_DOCUMENT_SIZE];
const char *ptr;
const char *start;
const char *part_ptr;
int size, part_size, partidx, nparts;
char sep;
GString *s;
MonoDebugSourceInfo *res, *cached;
mono_debugger_lock ();
cached = (MonoDebugSourceInfo *)g_hash_table_lookup (ppdb->doc_hash, GUINT_TO_POINTER (docidx));
mono_debugger_unlock ();
if (cached)
return cached;
mono_metadata_decode_row (&tables [MONO_TABLE_DOCUMENT], docidx-1, cols, MONO_DOCUMENT_SIZE);
ptr = mono_metadata_blob_heap (image, cols [MONO_DOCUMENT_NAME]);
size = mono_metadata_decode_blob_size (ptr, &ptr);
start = ptr;
// FIXME: UTF8
sep = ptr [0];
ptr ++;
s = g_string_new ("");
nparts = 0;
while (ptr < start + size) {
partidx = mono_metadata_decode_value (ptr, &ptr);
if (nparts)
g_string_append_c (s, sep);
if (partidx) {
part_ptr = mono_metadata_blob_heap (image, partidx);
part_size = mono_metadata_decode_blob_size (part_ptr, &part_ptr);
// FIXME: UTF8
g_string_append_len (s, part_ptr, part_size);
}
nparts ++;
}
res = g_new0 (MonoDebugSourceInfo, 1);
res->source_file = g_string_free (s, FALSE);
res->guid = NULL;
res->hash = (guint8*)mono_metadata_blob_heap (image, cols [MONO_DOCUMENT_HASH]);
mono_debugger_lock ();
cached = (MonoDebugSourceInfo *)g_hash_table_lookup (ppdb->doc_hash, GUINT_TO_POINTER (docidx));
if (!cached) {
g_hash_table_insert (ppdb->doc_hash, GUINT_TO_POINTER (docidx), res);
} else {
doc_free (res);
res = cached;
}
mono_debugger_unlock ();
return res;
}
