/*
Gather the fde print logic here so the control logic
determining what FDE to print is clearer.
*/
int
print_one_fde(Dwarf_Debug dbg, Dwarf_Fde fde,
Dwarf_Unsigned fde_index,
Dwarf_Cie * cie_data,
Dwarf_Signed cie_element_count,
Dwarf_Half address_size, int is_eh,
struct dwconf_s *config_data)
{
Dwarf_Addr j = 0;
Dwarf_Addr low_pc = 0;
Dwarf_Unsigned func_length = 0;
Dwarf_Ptr fde_bytes = NULL;
Dwarf_Unsigned fde_bytes_length = 0;
Dwarf_Off cie_offset = 0;
Dwarf_Signed cie_index = 0;
Dwarf_Off fde_offset = 0;
Dwarf_Signed eh_table_offset = 0;
int fres = 0;
int offres = 0;
string temps = 0;
Dwarf_Error err = 0;
int printed_intro_addr = 0;
fres = dwarf_get_fde_range(fde,
&low_pc, &func_length,
&fde_bytes,
&fde_bytes_length,
&cie_offset, &cie_index,
&fde_offset, &err);
if (fres == DW_DLV_ERROR) {
print_error(dbg, "dwarf_get_fde_range", fres, err);
}
if (fres == DW_DLV_NO_ENTRY) {
return DW_DLV_NO_ENTRY;
}
if (cu_name_flag &&
fde_offset_for_cu_low != DW_DLV_BADOFFSET &&
(fde_offset < fde_offset_for_cu_low ||
fde_offset > fde_offset_for_cu_high)) {
return DW_DLV_NO_ENTRY;
}
/* eh_table_offset is IRIX ONLY. */
fres = dwarf_get_fde_exception_info(fde, &eh_table_offset, &err);
if (fres == DW_DLV_ERROR) {
print_error(dbg, "dwarf_get_fde_exception_info", fres, err);
}
temps = get_fde_proc_name(dbg, low_pc);
printf
("<%3lld><%#llx:%#llx><%s><fde offset 0x%llx length: 0x%llx>",
cie_index, low_pc, (low_pc + func_length),
temps ? temps : "", fde_offset, fde_bytes_length);
if (!is_eh) {
/* IRIX uses eh_table_offset. */
if (eh_table_offset == DW_DLX_NO_EH_OFFSET) {
printf("<eh offset %s>\n", "none");
} else if (eh_table_offset == DW_DLX_EH_OFFSET_UNAVAILABLE) {
printf("<eh offset %s>\n", "unknown");
} else {
printf("<eh offset 0x%llx>\n", eh_table_offset);
}
} else {
int ares = 0;
Dwarf_Small *data = 0;
Dwarf_Unsigned len = 0;
ares = dwarf_get_fde_augmentation_data(fde, &data, &len, &err);
if (ares == DW_DLV_NO_ENTRY) {
/* do nothing. */
} else if (ares == DW_DLV_OK) {
int k2;
printf("<eh aug data len 0x%llx", (long long) len);
for (k2 = 0; k2 < len; ++k2) {
if (k2 == 0) {
printf(" bytes 0x");
}
printf("%02x ", (unsigned char) data[k2]);
}
printf(">");
} /* else DW_DLV_ERROR, do nothing */
printf("\n");
}
/* call dwarf_get_fde_info_for_reg() to get whole matrix */
for (j = low_pc; j < low_pc + func_length; j++) {
Dwarf_Half k;
if (config_data->cf_interface_number == 3) {
Dwarf_Signed reg = 0;
Dwarf_Signed offset_relevant = 0;
Dwarf_Small value_type = 0;
Dwarf_Signed offset_or_block_len = 0;
Dwarf_Signed offset = 0;
Dwarf_Ptr block_ptr = 0;
Dwarf_Addr row_pc = 0;
int fires = dwarf_get_fde_info_for_cfa_reg3(fde,
j,
&value_type,
&offset_relevant,
®,
&offset_or_block_len,
&block_ptr,
&row_pc,
&err);
offset = offset_or_block_len;
if (fires == DW_DLV_ERROR) {
print_error(dbg,
"dwarf_get_fde_info_for_reg", fires, err);
}
if (fires == DW_DLV_NO_ENTRY) {
continue;
}
if (row_pc != j) {
/* duplicate row */
continue;
}
if (!printed_intro_addr) {
printf(" %08llx:\t", j);
printed_intro_addr = 1;
}
print_one_frame_reg_col(dbg, config_data->cf_cfa_reg,
value_type,
reg,
config_data,
offset_relevant, offset, block_ptr);
}
for (k = 0; k < config_data->cf_table_entry_count; k++) {
Dwarf_Signed reg = 0;
Dwarf_Signed offset_relevant = 0;
int fires = 0;
Dwarf_Small value_type = 0;
Dwarf_Ptr block_ptr = 0;
Dwarf_Signed offset_or_block_len = 0;
Dwarf_Signed offset = 0;
Dwarf_Addr row_pc = 0;
if (config_data->cf_interface_number == 3) {
fires = dwarf_get_fde_info_for_reg3(fde,
k,
j,
&value_type,
&offset_relevant,
®,
&offset_or_block_len,
&block_ptr,
&row_pc, &err);
offset = offset_or_block_len;
} else { /* ASSERT:
config_data->cf_interface_number ==
2 */
value_type = DW_EXPR_OFFSET;
fires = dwarf_get_fde_info_for_reg(fde,
k,
j,
&offset_relevant,
®,
&offset, &row_pc,
&err);
}
if (fires == DW_DLV_ERROR) {
printf("\n");
print_error(dbg,
"dwarf_get_fde_info_for_reg", fires, err);
}
if (fires == DW_DLV_NO_ENTRY) {
continue;
}
if (row_pc != j) {
/* duplicate row */
break;
}
if (!printed_intro_addr) {
printf(" %08llx:\t", j);
printed_intro_addr = 1;
}
print_one_frame_reg_col(dbg,k,
value_type,
reg,
config_data,
offset_relevant, offset, block_ptr);
}
if (printed_intro_addr) {
printf("\n");
printed_intro_addr = 0;
}
}
if (verbose > 1) {
Dwarf_Off fde_off;
Dwarf_Off cie_off;
/* get the fde instructions and print them in raw form, just
like cie instructions */
Dwarf_Ptr instrs;
Dwarf_Unsigned ilen;
int res;
res = dwarf_get_fde_instr_bytes(fde, &instrs, &ilen, &err);
offres =
dwarf_fde_section_offset(dbg, fde, &fde_off, &cie_off,
&err);
if (offres == DW_DLV_OK) {
printf("\tfde sec. offset %llu 0x%llx"
" cie offset for fde: %llu 0x%llx\n",
(unsigned long long) fde_off,
(unsigned long long) fde_off,
(unsigned long long) cie_off,
(unsigned long long) cie_off);
}
if (res == DW_DLV_OK) {
int cires = 0;
Dwarf_Unsigned cie_length = 0;
Dwarf_Small version = 0;
string augmenter;
Dwarf_Unsigned code_alignment_factor = 0;
Dwarf_Signed data_alignment_factor = 0;
Dwarf_Half return_address_register_rule = 0;
Dwarf_Ptr initial_instructions = 0;
Dwarf_Unsigned initial_instructions_length = 0;
if (cie_index >= cie_element_count) {
printf("Bad cie index %lld with fde index %lld! "
"(table entry max %lld)\n",
(long long) cie_index, (long long) fde_index,
(long long) cie_element_count);
exit(1);
}
cires = dwarf_get_cie_info(cie_data[cie_index],
&cie_length,
&version,
&augmenter,
&code_alignment_factor,
&data_alignment_factor,
&return_address_register_rule,
&initial_instructions,
&initial_instructions_length,
&err);
if (cires == DW_DLV_ERROR) {
printf
("Bad cie index %lld with fde index %lld!\n",
(long long) cie_index, (long long) fde_index);
print_error(dbg, "dwarf_get_cie_info", cires, err);
}
if (cires == DW_DLV_NO_ENTRY) {
; /* ? */
} else {
print_frame_inst_bytes(dbg, instrs,
(Dwarf_Signed) ilen,
data_alignment_factor,
(int) code_alignment_factor,
address_size, config_data);
}
} else if (res == DW_DLV_NO_ENTRY) {
printf
("Impossible: no instr bytes for fde index %d?\n",
(int) fde_index);
} else {
/* DW_DLV_ERROR */
printf
("Error: on gettinginstr bytes for fde index %d?\n",
(int) fde_index);
print_error(dbg, "dwarf_get_fde_instr_bytes", res, err);
}
}
return DW_DLV_OK;
}
static void
_frame2_test(Dwarf_Debug dbg, Dwarf_Fde fde, Dwarf_Addr pc,
Dwarf_Unsigned func_len, Dwarf_Unsigned caf)
{
Dwarf_Signed offset_relevant, register_num, offset;
Dwarf_Addr pc_end, row_pc;
Dwarf_Regtable reg_table;
Dwarf_Error de;
int i, cnt;
(void) dwarf_set_frame_cfa_value(dbg, DW_FRAME_CFA_COL);
/* Sanity check for invalid table_column. */
if (dwarf_get_fde_info_for_reg(fde, 9999, 0, &offset_relevant,
®ister_num, &offset, &row_pc, &de) != DW_DLV_ERROR) {
tet_infoline("dwarf_get_fde_info_for_reg didn't return"
" DW_DLV_ERROR when called with invalid table_column"
" value");
result = TET_FAIL;
return;
}
cnt = 0;
pc_end = pc + func_len;
while (pc < pc_end && cnt < 16) {
tet_printf("query CFA register pc %#jx\n", (uintmax_t) pc);
/*
* XXX If application want to use DW_FRAME_CFA_COL for CFA,
* it should call dwarf_set_frame_cfa_value() to set that
* explicitly. So here DW_FRAME_CFA_COL might not be refering
* to the CFA at all, depends on whether CFA(0) is set by
* dwarf_set_frame_cfa_value.
*/
if (dwarf_get_fde_info_for_reg(fde, DW_FRAME_CFA_COL,
pc, &offset_relevant, ®ister_num, &offset,
&row_pc, &de) != DW_DLV_OK) {
tet_printf("dwarf_get_fde_info_for_reg(cfa) failed: %s",
dwarf_errmsg(de));
result = TET_FAIL;
return;
}
TS_CHECK_INT(offset_relevant);
TS_CHECK_INT(offset);
TS_CHECK_INT(register_num);
TS_CHECK_UINT(row_pc);
for (i = 1; i < _MAX_REG_NUM; i++) {
tet_printf("query register %d\n", i);
if (dwarf_get_fde_info_for_reg(fde, i, pc,
&offset_relevant, ®ister_num, &offset,
&row_pc, &de) != DW_DLV_OK) {
tet_printf("dwarf_get_fde_info_for_reg(%d)"
" failed: %s", i, dwarf_errmsg(de));
result = TET_FAIL;
goto next;
}
TS_CHECK_INT(offset_relevant);
TS_CHECK_INT(offset);
TS_CHECK_INT(register_num);
TS_CHECK_UINT(row_pc);
}
tet_infoline("query all register");
if (dwarf_get_fde_info_for_all_regs(fde, pc, ®_table,
&row_pc, &de) != DW_DLV_OK) {
tet_printf("dwarf_get_fde_info_for_all_regs failed: %s",
dwarf_errmsg(de));
result = TET_FAIL;
goto next;
}
TS_CHECK_UINT(row_pc);
for (i = 0; i < _MAX_REG_NUM; i++) {
tet_printf("check reg_table[%d]\n", i);
TS_CHECK_UINT(reg_table.rules[i].dw_offset_relevant);
TS_CHECK_UINT(reg_table.rules[i].dw_regnum);
TS_CHECK_UINT(reg_table.rules[i].dw_offset);
}
next:
pc += caf;
cnt++;
}
}
