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| author | Ulrich Drepper <drepper@redhat.com> | 2009-04-26 05:42:49 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-04-26 05:42:49 +0000 |
| commit | 337c270829f7088949ba0c96fffa6326fde17f78 (patch) | |
| tree | 156108c0cf719838f421f4b30116ad8f3181056f /sysdeps/i386/fpu/s_tan.S | |
| parent | 002a604fd61d1d3b8d82a5a85959ba4ebd210aec (diff) | |
| download | glibc-337c270829f7088949ba0c96fffa6326fde17f78.tar.gz glibc-337c270829f7088949ba0c96fffa6326fde17f78.tar.xz glibc-337c270829f7088949ba0c96fffa6326fde17f78.zip | |
* sysdeps/i386/fpu/s_tan.S: Set errno for ±Inf.
* sysdeps/i386/fpu/s_tanf.S: Likewise. * sysdeps/i386/fpu/s_tanl.S: Likewise. * sysdeps/ieee754/dbl-64/s_tan.c: Likewise. * sysdeps/ieee754/flt-32/s_tanf.c: Likewise. * sysdeps/x86_64/fpu/s_tanl.S: Likewise. * math/libm-test.inc: Add tests for errno after tan calls with ±Inf.
Diffstat (limited to 'sysdeps/i386/fpu/s_tan.S')
| -rw-r--r-- | sysdeps/i386/fpu/s_tan.S | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/sysdeps/i386/fpu/s_tan.S b/sysdeps/i386/fpu/s_tan.S index 7b3547af4c..b35bb835de 100644 --- a/sysdeps/i386/fpu/s_tan.S +++ b/sysdeps/i386/fpu/s_tan.S @@ -1,15 +1,24 @@ /* * Written by J.T. Conklin <jtc@netbsd.org>. + * Fixed errno handling by Ulrich Drepper <drepper@redhat.com>. * Public domain. */ +#define __need_Emath +#include <bits/errno.h> #include <machine/asm.h> RCSID("$NetBSD: s_tan.S,v 1.5 1995/05/09 00:30:00 jtc Exp $") ENTRY(__tan) fldl 4(%esp) - fptan + fxam + fstsw %ax + movb $0x45, %dh + andb %ah, %dh + cmpb $0x05, %dh + je 3f +4: fptan fnstsw %ax testl $0x400,%eax jnz 1f @@ -26,5 +35,21 @@ ENTRY(__tan) fptan fstp %st(0) ret +3: +#ifdef PIC + pushl %ebx + cfi_adjust_cfa_offset (4) + cfi_rel_offset (ebx, 0) + LOAD_PIC_REG (bx) + call __errno_location@PLT + movl $EDOM, (%eax) + popl %ebx + cfi_adjust_cfa_offset (-4) + cfi_restore (ebx) +#else + call __errno_location@PLT + movl $EDOM, (%eax) +#endif + jmp 4b END (__tan) weak_alias (__tan, tan) |