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musl/arch/mips/bits/fenv.h

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mips: add mips-sf subarch support (soft-float) Userspace emulated floating-point (gcc -msoft-float) is not compatible with the default mips abi (assumes an FPU or in kernel emulation of it). Soft vs hard float abi should not be mixed, __mips_soft_float is checked in musl's configure script and there is no runtime check. The -sf subarch does not save/restore floating-point registers in setjmp/longjmp and only provides dummy fenv implementation.
2014-02-24 22:16:29 +00:00
#ifdef __mips_soft_float
#define FE_ALL_EXCEPT 0
#define FE_TONEAREST 0
#else
floating point environment/exceptions support for mips
2012-10-19 00:19:53 +00:00
#define FE_INEXACT 4
#define FE_UNDERFLOW 8
#define FE_OVERFLOW 16
#define FE_DIVBYZERO 32
#define FE_INVALID 64
#define FE_ALL_EXCEPT 124
initial version of mips (o32) port, based on work by Richard Pennington (rdp) basically, this version of the code was obtained by starting with rdp's work from his ellcc source tree, adapting it to musl's build system and coding style, auditing the bits headers for discrepencies with kernel definitions or glibc/LSB ABI or large file issues, fixing up incompatibility with the old binutils from aboriginal linux, and adding some new special cases to deal with the oddities of sigaction and pipe syscall interfaces on mips. at present, minimal test programs work, but some interfaces are broken or missing. threaded programs probably will not link.
2012-07-11 08:22:13 +00:00
#define FE_TONEAREST 0
floating point environment/exceptions support for mips
2012-10-19 00:19:53 +00:00
#define FE_TOWARDZERO 1
#define FE_UPWARD 2
#define FE_DOWNWARD 3
mips: add mips-sf subarch support (soft-float) Userspace emulated floating-point (gcc -msoft-float) is not compatible with the default mips abi (assumes an FPU or in kernel emulation of it). Soft vs hard float abi should not be mixed, __mips_soft_float is checked in musl's configure script and there is no runtime check. The -sf subarch does not save/restore floating-point registers in setjmp/longjmp and only provides dummy fenv implementation.
2014-02-24 22:16:29 +00:00
#endif
initial version of mips (o32) port, based on work by Richard Pennington (rdp) basically, this version of the code was obtained by starting with rdp's work from his ellcc source tree, adapting it to musl's build system and coding style, auditing the bits headers for discrepencies with kernel definitions or glibc/LSB ABI or large file issues, fixing up incompatibility with the old binutils from aboriginal linux, and adding some new special cases to deal with the oddities of sigaction and pipe syscall interfaces on mips. at present, minimal test programs work, but some interfaces are broken or missing. threaded programs probably will not link.
2012-07-11 08:22:13 +00:00
floating point environment/exceptions support for mips
2012-10-19 00:19:53 +00:00
typedef unsigned short fexcept_t;
initial version of mips (o32) port, based on work by Richard Pennington (rdp) basically, this version of the code was obtained by starting with rdp's work from his ellcc source tree, adapting it to musl's build system and coding style, auditing the bits headers for discrepencies with kernel definitions or glibc/LSB ABI or large file issues, fixing up incompatibility with the old binutils from aboriginal linux, and adding some new special cases to deal with the oddities of sigaction and pipe syscall interfaces on mips. at present, minimal test programs work, but some interfaces are broken or missing. threaded programs probably will not link.
2012-07-11 08:22:13 +00:00
typedef struct {
floating point environment/exceptions support for mips
2012-10-19 00:19:53 +00:00
unsigned __cw;
initial version of mips (o32) port, based on work by Richard Pennington (rdp) basically, this version of the code was obtained by starting with rdp's work from his ellcc source tree, adapting it to musl's build system and coding style, auditing the bits headers for discrepencies with kernel definitions or glibc/LSB ABI or large file issues, fixing up incompatibility with the old binutils from aboriginal linux, and adding some new special cases to deal with the oddities of sigaction and pipe syscall interfaces on mips. at present, minimal test programs work, but some interfaces are broken or missing. threaded programs probably will not link.
2012-07-11 08:22:13 +00:00
} fenv_t;
#define FE_DFL_ENV ((const fenv_t *) -1)