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From: Szabolcs Nagy <nsz@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/vendors/ARM/heads/gcs-13)] aarch64: Emit GNU property NOTE for GCS Date: Wed, 14 Feb 2024 15:37:55 +0000 (GMT) [thread overview] Message-ID: <20240214153755.29F35385E45F@sourceware.org> (raw) https://gcc.gnu.org/g:a0031745c079576a4a307cbd6da37fd2b9dd5110 commit a0031745c079576a4a307cbd6da37fd2b9dd5110 Author: Szabolcs Nagy <szabolcs.nagy@arm.com> Date: Tue May 9 14:32:46 2023 +0100 aarch64: Emit GNU property NOTE for GCS TODO: relies on experimental binutils ABI, should use build attributes. gcc/ChangeLog: * config/aarch64/aarch64.cc (GNU_PROPERTY_AARCH64_FEATURE_1_GCS): Define. (aarch64_file_end_indicate_exec_stack): Set GCS property bit. Diff: --- gcc/config/aarch64/aarch64.cc | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc index ffc3b4d00b34..2499e79338fb 100644 --- a/gcc/config/aarch64/aarch64.cc +++ b/gcc/config/aarch64/aarch64.cc @@ -27252,6 +27252,7 @@ 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 () { @@ -27264,6 +27265,9 @@ 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. */ @@ -27295,6 +27299,7 @@ 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
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