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PR29390, DW_CFA_AARCH64_negate_ra_state vs. DW_CFA_GNU_window_save

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PR 29390
binutils/
	* dwarf.c (is_aarch64, DW_CFA_GNU_window_save_name): New.
	(display_debug_frames): Use them.
	(init_dwarf_regnames_aarch64): Set is_aarch64.
	(init_dwarf_regnames_by_elf_machine_code): Clear is_aarch64.
	(init_dwarf_regnames_by_bfd_arch_and_mach): Likewise.
gas/
	* testsuite/gas/aarch64/pac_ab_key.d: Adjust expected output.
	* testsuite/gas/aarch64/pac_negate_ra_state.d: Likewise.
This commit is contained in:
Alan Modra
2022-07-21 16:28:50 +09:30
parent e82295b23d
commit e4e340a3ff
3 changed files with 14 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
binutils/dwarf.c
View File

@ -8404,7 +8404,7 @@ typedef const char *(*dwarf_regname_lookup_ftype) (unsigned int);
static dwarf_regname_lookup_ftype dwarf_regnames_lookup_func; static dwarf_regname_lookup_ftype dwarf_regnames_lookup_func;
static const char *const *dwarf_regnames; static const char *const *dwarf_regnames;
static unsigned int dwarf_regnames_count; static unsigned int dwarf_regnames_count;
static bool is_aarch64;
/* A marker for a col_type that means this column was never referenced /* A marker for a col_type that means this column was never referenced
in the frame info. */ in the frame info. */
@ -8523,6 +8523,12 @@ init_dwarf_regnames_iamcu (void)
dwarf_regnames_lookup_func = regname_internal_by_table_only; dwarf_regnames_lookup_func = regname_internal_by_table_only;
} }
static const char *const DW_CFA_GNU_window_save_name[] =
{
"DW_CFA_GNU_window_save",
"DW_CFA_AARCH64_negate_ra_state"
};
static const char *const dwarf_regnames_x86_64[] = static const char *const dwarf_regnames_x86_64[] =
{ {
"rax", "rdx", "rcx", "rbx", "rax", "rdx", "rcx", "rbx",
@ -8589,6 +8595,7 @@ init_dwarf_regnames_aarch64 (void)
dwarf_regnames = dwarf_regnames_aarch64; dwarf_regnames = dwarf_regnames_aarch64;
dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_aarch64); dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_aarch64);
dwarf_regnames_lookup_func = regname_internal_by_table_only; dwarf_regnames_lookup_func = regname_internal_by_table_only;
is_aarch64 = true;
} }
static const char *const dwarf_regnames_s390[] = static const char *const dwarf_regnames_s390[] =
@ -8678,6 +8685,7 @@ void
init_dwarf_regnames_by_elf_machine_code (unsigned int e_machine) init_dwarf_regnames_by_elf_machine_code (unsigned int e_machine)
{ {
dwarf_regnames_lookup_func = NULL; dwarf_regnames_lookup_func = NULL;
is_aarch64 = false;
switch (e_machine) switch (e_machine)
{ {
@ -8720,6 +8728,7 @@ init_dwarf_regnames_by_bfd_arch_and_mach (enum bfd_architecture arch,
unsigned long mach) unsigned long mach)
{ {
dwarf_regnames_lookup_func = NULL; dwarf_regnames_lookup_func = NULL;
is_aarch64 = false;
switch (arch) switch (arch)
{ {
@ -9955,7 +9964,7 @@ display_debug_frames (struct dwarf_section *section,
case DW_CFA_GNU_window_save: case DW_CFA_GNU_window_save:
if (! do_debug_frames_interp) if (! do_debug_frames_interp)
printf (" DW_CFA_GNU_window_save\n"); printf (" %s\n", DW_CFA_GNU_window_save_name[is_aarch64]);
break; break;
case DW_CFA_GNU_args_size: case DW_CFA_GNU_args_size:

4
gas/testsuite/gas/aarch64/pac_ab_key.d
View File

@ -18,7 +18,7 @@ Contents of the .eh_frame section:
0+14 0+18 0+18 FDE cie=0+ pc=0+\.\.0+8 0+14 0+18 0+18 FDE cie=0+ pc=0+\.\.0+8
DW_CFA_advance_loc: 4 to 0+4 DW_CFA_advance_loc: 4 to 0+4
DW_CFA_GNU_window_save DW_CFA_AARCH64_negate_ra_state
DW_CFA_advance_loc: 4 to 0+8 DW_CFA_advance_loc: 4 to 0+8
DW_CFA_def_cfa_offset: 16 DW_CFA_def_cfa_offset: 16
DW_CFA_offset: r29 \(x29\) at cfa-16 DW_CFA_offset: r29 \(x29\) at cfa-16
@ -40,7 +40,7 @@ Contents of the .eh_frame section:
0+48 0+1(c|8) 0+1c FDE cie=0+30 pc=0+8\.\.0+10 0+48 0+1(c|8) 0+1c FDE cie=0+30 pc=0+8\.\.0+10
DW_CFA_advance_loc: 4 to 0+c DW_CFA_advance_loc: 4 to 0+c
DW_CFA_GNU_window_save DW_CFA_AARCH64_negate_ra_state
DW_CFA_advance_loc: 4 to 0+10 DW_CFA_advance_loc: 4 to 0+10
DW_CFA_def_cfa_offset: 16 DW_CFA_def_cfa_offset: 16
DW_CFA_offset: r29 \(x29\) at cfa-16 DW_CFA_offset: r29 \(x29\) at cfa-16

2
gas/testsuite/gas/aarch64/pac_negate_ra_state.d
View File

@ -15,7 +15,7 @@ Contents of the .eh_frame section:
0+14 0+18 0+18 FDE cie=0+ pc=0+\.\.0+8 0+14 0+18 0+18 FDE cie=0+ pc=0+\.\.0+8
DW_CFA_advance_loc: 4 to 0+4 DW_CFA_advance_loc: 4 to 0+4
DW_CFA_GNU_window_save DW_CFA_AARCH64_negate_ra_state
DW_CFA_advance_loc: 4 to 0+8 DW_CFA_advance_loc: 4 to 0+8
DW_CFA_def_cfa_offset: 16 DW_CFA_def_cfa_offset: 16
DW_CFA_offset: r29 \(x29\) at cfa-16 DW_CFA_offset: r29 \(x29\) at cfa-16