From bd5969fc876a10b18613302db7087ef3c40f18e1 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Thu, 7 Mar 2024 17:28:00 -0500 Subject: lib: Add mlibc Signed-off-by: Ian Moffett --- lib/mlibc/options/ansi/generic/fenv-stubs.cpp | 43 +++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 lib/mlibc/options/ansi/generic/fenv-stubs.cpp (limited to 'lib/mlibc/options/ansi/generic/fenv-stubs.cpp') diff --git a/lib/mlibc/options/ansi/generic/fenv-stubs.cpp b/lib/mlibc/options/ansi/generic/fenv-stubs.cpp new file mode 100644 index 0000000..7153844 --- /dev/null +++ b/lib/mlibc/options/ansi/generic/fenv-stubs.cpp @@ -0,0 +1,43 @@ + +#include +#include + +// The functions that are not in this file but are defined in the header +// are implemented like musl does in assembly. +extern "C" __attribute__((__visibility__("hidden"))) int __fesetround(int); + +int fegetexceptflag(fexcept_t *, int) { + __ensure(!"Not implemented"); + __builtin_unreachable(); +} + +int feholdexcept(fenv_t *) { + __ensure(!"Not implemented"); + __builtin_unreachable(); +} + +int fesetexceptflag(const fexcept_t *, int) { + __ensure(!"Not implemented"); + __builtin_unreachable(); +} + +int fesetround(int r) { + if (r != FE_TONEAREST +#ifdef FE_DOWNWARD + && r != FE_DOWNWARD +#endif +#ifdef FE_UPWARD + && r != FE_UPWARD +#endif +#ifdef FE_TOWARDZERO + && r != FE_TOWARDZERO +#endif + ) + return -1; + return __fesetround(r); +} + +int feupdateenv(const fenv_t *) { + __ensure(!"Not implemented"); + __builtin_unreachable(); +} -- cgit v1.2.3