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arm64: vdso: Annotate for BTI 

Generate BTI annotations for all assembly files included in the 64 bit
vDSO.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20200506195138.22086-10-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Mark Brown 2020-05-06 20:51:36 +01:00 committed by Will Deacon
parent 3a9b136c99
commit a6aadc2827
3 changed files with 9 additions and 0 deletions
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3
arch/arm64/kernel/vdso/note.S
View File

@ -12,9 +12,12 @@
#include <linux/version.h> #include <linux/version.h>
#include <linux/elfnote.h> #include <linux/elfnote.h>
#include <linux/build-salt.h> #include <linux/build-salt.h>
#include <asm/assembler.h>
ELFNOTE_START(Linux, 0, "a") ELFNOTE_START(Linux, 0, "a")
.long LINUX_VERSION_CODE .long LINUX_VERSION_CODE
ELFNOTE_END ELFNOTE_END
BUILD_SALT BUILD_SALT
emit_aarch64_feature_1_and

3
arch/arm64/kernel/vdso/sigreturn.S
View File

@ -9,6 +9,7 @@
*/ */
#include <linux/linkage.h> #include <linux/linkage.h>
#include <asm/assembler.h>
#include <asm/unistd.h> #include <asm/unistd.h>
.text .text
@ -24,3 +25,5 @@ SYM_FUNC_START(__kernel_rt_sigreturn)
svc #0 svc #0
.cfi_endproc .cfi_endproc
SYM_FUNC_END(__kernel_rt_sigreturn) SYM_FUNC_END(__kernel_rt_sigreturn)
emit_aarch64_feature_1_and

3
arch/arm64/kernel/vdso/vdso.S
View File

@ -8,6 +8,7 @@
#include <linux/init.h> #include <linux/init.h>
#include <linux/linkage.h> #include <linux/linkage.h>
#include <linux/const.h> #include <linux/const.h>
#include <asm/assembler.h>
#include <asm/page.h> #include <asm/page.h>
.globl vdso_start, vdso_end .globl vdso_start, vdso_end
@ -19,3 +20,5 @@ vdso_start:
vdso_end: vdso_end:
.previous .previous
emit_aarch64_feature_1_and