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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/scalbl.S | |
| parent | 087aca6163236ab7ce55d73bba938ebaed57c2d7 (diff) | |
| download | newlib-792e51b721491b19904e046124fb8c4c0e83f621.zip newlib-792e51b721491b19904e046124fb8c4c0e83f621.tar.gz newlib-792e51b721491b19904e046124fb8c4c0e83f621.tar.bz2 | |
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/scalbl.S')
| -rw-r--r-- | winsup/cygwin/math/scalbl.S | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/winsup/cygwin/math/scalbl.S b/winsup/cygwin/math/scalbl.S new file mode 100644 index 0000000..f9675ac --- /dev/null +++ b/winsup/cygwin/math/scalbl.S @@ -0,0 +1,35 @@ +/** + * 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 "scalbl.S" + .text +#ifdef __x86_64__ + .align 8 +#else + .align 4 +#endif +.globl __MINGW_USYMBOL(scalbl) + .def __MINGW_USYMBOL(scalbl); .scl 2; .type 32; .endef +__MINGW_USYMBOL(scalbl): +#ifdef __x86_64__ + subq $24, %rsp + fldt (%r8) + fldt (%rdx) + fscale + fstp %st(1) + movq %rcx,%rax + movq $0,8(%rcx) + fstpt (%rcx) + addq $24, %rsp + ret +#else + fildl 16(%esp) + fldt 4(%esp) + fscale + fstp %st(1) + ret +#endif |