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Fix objtool: missing int3 after ret warning

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Resolve straight-line speculation warnings reported by objtool
for x86_64 assembly on Linux when CONFIG_SLS is set.  See the
following LWN article for the complete details.

https://lwn.net/Articles/877845/

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #13528
Closes #13575
This commit is contained in:
Brian Behlendorf
2022-06-20 23:36:21 +00:00
parent b9d862f2db
commit 69ad0bd769
8 changed files with 34 additions and 22 deletions
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module/icp/asm-x86_64/aes/aes_amd64.S
+2 -2
View File
@@ -785,7 +785,7 @@ ENTRY_NP(aes_encrypt_amd64)
mov 2*8(%rsp), %rbp
mov 3*8(%rsp), %r12
add $[4*8], %rsp
ret
RET
SET_SIZE(aes_encrypt_amd64)
@@ -896,7 +896,7 @@ ENTRY_NP(aes_decrypt_amd64)
mov 2*8(%rsp), %rbp
mov 3*8(%rsp), %r12
add $[4*8], %rsp
ret
RET
SET_SIZE(aes_decrypt_amd64)
#endif /* lint || __lint */