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x86: Always generate .note.gnu.property section for ELF outputs

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We should always generate .note.gnu.property section in x86 assembly
codes for ELF outputs to mark Intel CET support since all input files
must be marked with Intel CET support in order for linker to mark output
with Intel CET support.

Verified with

$ CC="gcc -Wl,-z,cet-report=error" ./Configure shared linux-x86 -fcf-protection
$ make
$ make test

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11044)
This commit is contained in:
H.J. Lu 2019-12-14 09:48:18 -08:00
parent 87d3bb8e86
commit 96f0b8addd
1 changed files with 20 additions and 0 deletions
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20
crypto/perlasm/x86gas.pl
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@ -173,6 +173,26 @@ sub ::file_end
else { push (@out,"$tmp\n"); }
}
push(@out,$initseg) if ($initseg);
if ($::elf) {
push(@out,"
.section \".note.gnu.property\", \"a\"
.p2align 2
.long 1f - 0f
.long 4f - 1f
.long 5
0:
.asciz \"GNU\"
1:
.p2align 2
.long 0xc0000002
.long 3f - 2f
2:
.long 3
3:
.p2align 2
4:
");
}
}
sub ::data_byte { push(@out,".byte\t".join(',',@_)."\n"); }