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| author | Jilles Tjoelker <jilles@FreeBSD.org> | 2014-06-09 21:35:36 +0000 |
|---|---|---|
| committer | Jilles Tjoelker <jilles@FreeBSD.org> | 2014-06-09 21:35:36 +0000 |
| commit | 078cb49070aa97ec6c8e872c64dd035c9f438974 (patch) | |
| tree | 6b964251625d0c6c34eef8893f0b237dd311c015 /lib | |
| parent | 1c0155935362b2db1f5f5960765587738f5b401c (diff) | |
| download | src-078cb49070aa97ec6c8e872c64dd035c9f438974.tar.gz src-078cb49070aa97ec6c8e872c64dd035c9f438974.zip | |
siglongjmp(): Preserve floating point exception flags on i386 and amd64.
Per POSIX, siglongjmp() shall be equivalent to longjmp() except that it must
match sigsetjmp() instead of setjmp() and except for the effect on the
signal mask. Therefore, it should preserve the floating point exception
flags.
This was fixed for longjmp() and _longjmp() in r180080 and r180081 for amd64
and i386 respectively.
Notes
Notes:
svn path=/head/; revision=267307
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/amd64/gen/sigsetjmp.S | 1 | ||||
| -rw-r--r-- | lib/libc/i386/gen/sigsetjmp.S | 1 |
2 files changed, 0 insertions, 2 deletions
diff --git a/lib/libc/amd64/gen/sigsetjmp.S b/lib/libc/amd64/gen/sigsetjmp.S index 02b154ce5fa2..9a205567c3b7 100644 --- a/lib/libc/amd64/gen/sigsetjmp.S +++ b/lib/libc/amd64/gen/sigsetjmp.S @@ -105,7 +105,6 @@ ENTRY(__siglongjmp) movq 40(%rdx),%r13 movq 48(%rdx),%r14 movq 56(%rdx),%r15 - fninit fldcw 64(%rdx) testq %rax,%rax jnz 1f diff --git a/lib/libc/i386/gen/sigsetjmp.S b/lib/libc/i386/gen/sigsetjmp.S index 0920b6da9956..1c636493c507 100644 --- a/lib/libc/i386/gen/sigsetjmp.S +++ b/lib/libc/i386/gen/sigsetjmp.S @@ -115,7 +115,6 @@ ENTRY(__siglongjmp) movl 12(%edx),%ebp movl 16(%edx),%esi movl 20(%edx),%edi - fninit fldcw 24(%edx) testl %eax,%eax jnz 1f |