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| author | Andrew Turner <andrew@FreeBSD.org> | 2023-10-12 16:29:46 +0000 |
|---|---|---|
| committer | Andrew Turner <andrew@FreeBSD.org> | 2023-10-30 17:55:44 +0000 |
| commit | 5270cc9757fb4e0c1303ec44c2602b75acf3806d (patch) | |
| tree | 17beb3e1659f09f255fac5e55baf14b90cc5f786 | |
| parent | 522126fea72419fae344fbcb897b41588909308a (diff) | |
| download | src-5270cc9757fb4e0c1303ec44c2602b75acf3806d.tar.gz src-5270cc9757fb4e0c1303ec44c2602b75acf3806d.zip | |
rtld: Teach rtld about the BTI elf note
Add the Branch Target Identification (BTI) note to libc assembly
sources. As all obect files need the note for rtld to have it we need
to insert it in all asm files.
Reviewed by: markj, emaste
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D42228
| -rw-r--r-- | libexec/rtld-elf/aarch64/rtld_start.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libexec/rtld-elf/aarch64/rtld_start.S b/libexec/rtld-elf/aarch64/rtld_start.S index 7dc87213b5fb..8de3e021d567 100644 --- a/libexec/rtld-elf/aarch64/rtld_start.S +++ b/libexec/rtld-elf/aarch64/rtld_start.S @@ -28,6 +28,8 @@ */ #include <machine/asm.h> +#include <sys/elf_common.h> + ENTRY(.rtld_start) .cfi_undefined x30 mov x19, x0 /* Put ps_strings in a callee-saved register */ @@ -249,3 +251,5 @@ ENTRY(_rtld_tlsdesc_dynamic) .cfi_adjust_cfa_offset -2 * 16 ret END(_rtld_tlsdesc_dynamic) + +GNU_PROPERTY_AARCH64_FEATURE_1_NOTE(GNU_PROPERTY_AARCH64_FEATURE_1_VAL) |