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* [glibc] elf.h: Add aarch64 bti/pac dynamic tag constants
@ 2020-09-07 7:22 Mark Wielaard
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From: Mark Wielaard @ 2020-09-07 7:22 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=721a853415e358ba887c9fc693899cb648ca79f3
commit 721a853415e358ba887c9fc693899cb648ca79f3
Author: Mark Wielaard <mark@klomp.org>
Date: Fri Aug 28 18:44:16 2020 +0200
elf.h: Add aarch64 bti/pac dynamic tag constants
Constants double checked against binutils and the ELF for the Arm 64-bit
Architecture (AArch64) Release 2020Q2 document.
Only BTI PLT is used in glibc, there's no PAC PLT with glibc, and people
are expected to use BIND_NOW.
Diff:
---
elf/elf.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/elf/elf.h b/elf/elf.h
index 197b557d15..ff9f1dadd5 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -2875,6 +2875,8 @@ enum
#define R_AARCH64_IRELATIVE 1032 /* STT_GNU_IFUNC relocation. */
/* AArch64 specific values for the Dyn d_tag field. */
+#define DT_AARCH64_BTI_PLT (DT_LOPROC + 1)
+#define DT_AARCH64_PAC_PLT (DT_LOPROC + 3)
#define DT_AARCH64_VARIANT_PCS (DT_LOPROC + 5)
#define DT_AARCH64_NUM 6
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