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| author | Corinna Vinschen <corinna@vinschen.de> | 2016-03-28 19:35:20 +0200 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2016-03-29 14:43:55 +0200 |
| commit | 792e51b721491b19904e046124fb8c4c0e83f621 (patch) | |
| tree | a7449cd3a88b63385954605f715c0208d3aa6833 /winsup/cygwin/math/cosl_internal.S | |
| parent | 087aca6163236ab7ce55d73bba938ebaed57c2d7 (diff) | |
| download | cygnal-792e51b721491b19904e046124fb8c4c0e83f621.tar.gz cygnal-792e51b721491b19904e046124fb8c4c0e83f621.tar.bz2 cygnal-792e51b721491b19904e046124fb8c4c0e83f621.zip | |
Add missing long double functions to Cygwin
This patch adds the long double functions missing in newlib to Cygwin.
Apart from some self-written additions (exp10l, finite{f,l}, isinf{f,l},
isnan{f,l}, pow10l) the files are taken from the Mingw-w64 math lib.
Minor changes were required, e.g. substitue _WIN64 with __x86_64__ and
fixing __FLT_RPT_DOMAIN/__FLT_RPT_ERANGE for Cygwin.
Cygwin:
* math: New subdir with math functions.
* Makefile.in (VPATH): Add math subdir.
(MATH_OFILES): List of object files collected from building files in
math subdir.
(DLL_OFILES): Add $(MATH_OFILES).
${CURDIR}/libm.a: Add $(MATH_OFILES) to build.
* common.din: Add new functions from math subdir.
* i686.din: Align to new math subdir. Remove functions now commonly
available.
* x86_64.din: Ditto.
* math.h: math.h wrapper to define mingw structs used in some files in
math subdir.
* include/cygwin/version.h: Bump API minor version.
newlib:
* libc/include/complex.h: Add prototypes for complex long double
functions. Only define for Cygwin.
* libc/include/math.h: Additionally enable prototypes of long double
functions for Cygwin. Add Cygwin-only prototypes for dreml, sincosl,
exp10l and pow10l. Explain why we don't add them to newlib.
* libc/include/tgmath.h: Enable long double handling on Cygwin.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diffstat (limited to 'winsup/cygwin/math/cosl_internal.S')
| -rw-r--r-- | winsup/cygwin/math/cosl_internal.S | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/winsup/cygwin/math/cosl_internal.S b/winsup/cygwin/math/cosl_internal.S new file mode 100644 index 000000000..3c8f60d14 --- /dev/null +++ b/winsup/cygwin/math/cosl_internal.S @@ -0,0 +1,55 @@ +/** + * This file has no copyright assigned and is placed in the Public Domain. + * This file is part of the mingw-w64 runtime package. + * No warranty is given; refer to the file DISCLAIMER.PD within this package. + */ +#include <_mingw_mac.h> + + .file "cosl_internal.S" + .text +#ifdef __x86_64__ + .align 8 +#else + .align 4 +#endif +.globl __MINGW_USYMBOL(__cosl_internal) + .def __MINGW_USYMBOL(__cosl_internal); .scl 2; .type 32; .endef +__MINGW_USYMBOL(__cosl_internal): +#ifdef __x86_64__ + fldt (%rdx) + fcos + fnstsw %ax + testl $0x400,%eax + jz 1f + fldpi + fadd %st(0) + fxch %st(1) +2: fprem1 + fnstsw %ax + testl $0x400,%eax + jnz 2b + fstp %st(1) + fcos +1: movq %rcx,%rax + movq $0,8(%rcx) + fstpt (%rcx) + ret +#else + fldt 4(%esp) + fcos + fnstsw %ax + testl $0x400,%eax + jnz 1f + ret +1: fldpi + fadd %st(0) + fxch %st(1) +2: fprem1 + fnstsw %ax + testl $0x400,%eax + jnz 2b + fstp %st(1) + fcos + ret +#endif + |