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aarch64: Emit GNU property NOTE for GCS

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gcc/ChangeLog:

	* config/aarch64/aarch64.cc (GNU_PROPERTY_AARCH64_FEATURE_1_GCS):
	Define.
	(aarch64_file_end_indicate_exec_stack): Set GCS property bit.
This commit is contained in:
Szabolcs Nagy 2024-11-14 16:15:11 +00:00 • committed by Richard Sandiford
parent 2a330ec149
commit 608da24401
1 changed files with 5 additions and 0 deletions
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5
gcc/config/aarch64/aarch64.cc
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@ -29544,6 +29544,7 @@ aarch64_can_tag_addresses ()
#define GNU_PROPERTY_AARCH64_FEATURE_1_AND 0xc0000000
#define GNU_PROPERTY_AARCH64_FEATURE_1_BTI (1U << 0)
#define GNU_PROPERTY_AARCH64_FEATURE_1_PAC (1U << 1)
#define GNU_PROPERTY_AARCH64_FEATURE_1_GCS (1U << 2)
void
aarch64_file_end_indicate_exec_stack ()
{
@ -29556,6 +29557,9 @@ aarch64_file_end_indicate_exec_stack ()
if (aarch_ra_sign_scope != AARCH_FUNCTION_NONE)
feature_1_and |= GNU_PROPERTY_AARCH64_FEATURE_1_PAC;
if (aarch64_gcs_enabled ())
feature_1_and |= GNU_PROPERTY_AARCH64_FEATURE_1_GCS;
if (feature_1_and)
{
/* Generate .note.gnu.property section. */
@ -29587,6 +29591,7 @@ aarch64_file_end_indicate_exec_stack ()
assemble_align (POINTER_SIZE);
}
}
#undef GNU_PROPERTY_AARCH64_FEATURE_1_GCS
#undef GNU_PROPERTY_AARCH64_FEATURE_1_PAC
#undef GNU_PROPERTY_AARCH64_FEATURE_1_BTI
#undef GNU_PROPERTY_AARCH64_FEATURE_1_AND