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| author | Jens Remus <jremus@linux.ibm.com> | 2024-09-19 14:40:06 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2024-09-23 17:57:04 +0200 |
| commit | 5cccfc8be6d256e91d155313edef20c1a89064b2 (patch) | |
| tree | d7e34555949c921337b2cb7ab458691953292c75 /arch | |
| parent | ff35a3f0ca5c88145c6da6630f3420071dfa296c (diff) | |
| download | lwn-5cccfc8be6d256e91d155313edef20c1a89064b2.tar.gz lwn-5cccfc8be6d256e91d155313edef20c1a89064b2.zip | |
s390/vdso: Add CFI annotations to __arch_chacha20_blocks_nostack()
This allows proper unwinding, for instance when using a debugger such
as GDB.
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/kernel/vdso64/vgetrandom-chacha.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kernel/vdso64/vgetrandom-chacha.S b/arch/s390/kernel/vdso64/vgetrandom-chacha.S index 3f7e30886d1b..894954bf3b41 100644 --- a/arch/s390/kernel/vdso64/vgetrandom-chacha.S +++ b/arch/s390/kernel/vdso64/vgetrandom-chacha.S @@ -3,6 +3,7 @@ #include <linux/stringify.h> #include <linux/linkage.h> #include <asm/alternative.h> +#include <asm/dwarf.h> #include <asm/fpu-insn.h> #define STATE0 %v0 @@ -38,6 +39,7 @@ * size_t nblocks) */ SYM_FUNC_START(__arch_chacha20_blocks_nostack) + CFI_STARTPROC larl %r1,.Lconstants /* COPY0 = "expand 32-byte k" */ @@ -177,4 +179,5 @@ SYM_FUNC_START(__arch_chacha20_blocks_nostack) VPERM TMP3,STATE3,STATE3,BEPERM VSTM TMP0,TMP3,0,%r2 j .Lstoredone + CFI_ENDPROC SYM_FUNC_END(__arch_chacha20_blocks_nostack) |