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Linux build: silence objtool warnings

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After #17401 the Linux build produces some stack related warnings.

Silence them with the `STACK_FRAME_NON_STANDARD` macro.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Co-authored-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #17410
This commit is contained in:
Attila Fülöp
2025-06-05 02:40:09 +02:00
committed by Brian Behlendorf
parent d0ea4c617b
commit b608b95247
5 changed files with 74 additions and 0 deletions
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module/icp/asm-x86_64/sha2/sha256-x86_64.S
+17
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@@ -23,6 +23,7 @@
#define _ASM
#include <sys/asm_linkage.h>
#include <sys/frame.h>
SECTION_STATIC
@@ -1419,6 +1420,7 @@ ENTRY_ALIGN(zfs_sha256_transform_x64, 16)
RET
.cfi_endproc
SET_SIZE(zfs_sha256_transform_x64)
STACK_FRAME_NON_STANDARD zfs_sha256_transform_x64
ENTRY_ALIGN(zfs_sha256_transform_shani, 64)
.cfi_startproc
@@ -1627,6 +1629,7 @@ ENTRY_ALIGN(zfs_sha256_transform_shani, 64)
RET
.cfi_endproc
SET_SIZE(zfs_sha256_transform_shani)
STACK_FRAME_NON_STANDARD zfs_sha256_transform_shani
ENTRY_ALIGN(zfs_sha256_transform_ssse3, 64)
.cfi_startproc
@@ -2738,6 +2741,7 @@ ENTRY_ALIGN(zfs_sha256_transform_ssse3, 64)
RET
.cfi_endproc
SET_SIZE(zfs_sha256_transform_ssse3)
STACK_FRAME_NON_STANDARD zfs_sha256_transform_ssse3
ENTRY_ALIGN(zfs_sha256_transform_avx, 64)
.cfi_startproc
@@ -3812,6 +3816,7 @@ ENTRY_ALIGN(zfs_sha256_transform_avx, 64)
RET
.cfi_endproc
SET_SIZE(zfs_sha256_transform_avx)
STACK_FRAME_NON_STANDARD zfs_sha256_transform_avx
ENTRY_ALIGN(zfs_sha256_transform_avx2, 64)
.cfi_startproc
@@ -5097,6 +5102,18 @@ ENTRY_ALIGN(zfs_sha256_transform_avx2, 64)
RET
.cfi_endproc
SET_SIZE(zfs_sha256_transform_avx2)
STACK_FRAME_NON_STANDARD zfs_sha256_transform_avx2
/* Workaround for missing asm macro in RHEL 8. */
#if defined(__linux__) && defined(HAVE_STACK_FRAME_NON_STANDARD) && \
! defined(HAVE_STACK_FRAME_NON_STANDARD_ASM)
.section .discard.func_stack_frame_non_standard, "aw"
.long zfs_sha256_transform_x64 - .
.long zfs_sha256_transform_shani - .
.long zfs_sha256_transform_ssse3 - .
.long zfs_sha256_transform_avx - .
.long zfs_sha256_transform_avx2 - .
#endif
#if defined(__ELF__)
.section .note.GNU-stack,"",%progbits