diff options
Diffstat (limited to 'sysdeps/powerpc/nofpu')
| -rw-r--r-- | sysdeps/powerpc/nofpu/Makefile | 3 | ||||
| -rw-r--r-- | sysdeps/powerpc/nofpu/Versions | 4 | ||||
| -rw-r--r-- | sysdeps/powerpc/nofpu/atomic-feclearexcept.c | 28 | ||||
| -rw-r--r-- | sysdeps/powerpc/nofpu/atomic-feholdexcept.c | 38 | ||||
| -rw-r--r-- | sysdeps/powerpc/nofpu/atomic-feupdateenv.c | 37 | ||||
| -rw-r--r-- | sysdeps/powerpc/nofpu/flt-rounds.c | 38 |
6 files changed, 147 insertions, 1 deletions
diff --git a/sysdeps/powerpc/nofpu/Makefile b/sysdeps/powerpc/nofpu/Makefile index b9cbf80230..9de7c43747 100644 --- a/sysdeps/powerpc/nofpu/Makefile +++ b/sysdeps/powerpc/nofpu/Makefile @@ -2,7 +2,8 @@ ifeq ($(subdir),soft-fp) sysdep_routines += $(gcc-single-routines) $(gcc-double-routines) \ - sim-full + sim-full atomic-feholdexcept atomic-feclearexcept \ + atomic-feupdateenv flt-rounds endif ifeq ($(subdir),math) diff --git a/sysdeps/powerpc/nofpu/Versions b/sysdeps/powerpc/nofpu/Versions index 8ba6021e9e..571b1d2c96 100644 --- a/sysdeps/powerpc/nofpu/Versions +++ b/sysdeps/powerpc/nofpu/Versions @@ -17,6 +17,10 @@ libc { __gtdf2; __gtsf2; __ltdf2; __ltsf2; } + GLIBC_2.19 { + __atomic_feholdexcept; __atomic_feclearexcept; __atomic_feupdateenv; + __flt_rounds; + } GLIBC_PRIVATE { __sim_exceptions_thread; __sim_disabled_exceptions_thread; diff --git a/sysdeps/powerpc/nofpu/atomic-feclearexcept.c b/sysdeps/powerpc/nofpu/atomic-feclearexcept.c new file mode 100644 index 0000000000..c2b2ee9386 --- /dev/null +++ b/sysdeps/powerpc/nofpu/atomic-feclearexcept.c @@ -0,0 +1,28 @@ +/* Clear floating-point exceptions for atomic compound assignment. + Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include "soft-fp.h" +#include "soft-supp.h" + +void +__atomic_feclearexcept (void) +{ + /* This function postdates the global variables being turned into + compat symbols, so no need to set them. */ + __sim_exceptions_thread = 0; +} diff --git a/sysdeps/powerpc/nofpu/atomic-feholdexcept.c b/sysdeps/powerpc/nofpu/atomic-feholdexcept.c new file mode 100644 index 0000000000..07b11d0557 --- /dev/null +++ b/sysdeps/powerpc/nofpu/atomic-feholdexcept.c @@ -0,0 +1,38 @@ +/* Store current floating-point environment and clear exceptions for + atomic compound assignment. + Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include "soft-fp.h" +#include "soft-supp.h" + +void +__atomic_feholdexcept (fenv_t *envp) +{ + fenv_union_t u; + + u.l[0] = __sim_exceptions_thread; + /* The rounding mode is not changed by arithmetic, so no need to + save it. */ + u.l[1] = __sim_disabled_exceptions_thread; + *envp = u.fenv; + + /* This function postdates the global variables being turned into + compat symbols, so no need to set them. */ + __sim_exceptions_thread = 0; + __sim_disabled_exceptions_thread = FE_ALL_EXCEPT; +} diff --git a/sysdeps/powerpc/nofpu/atomic-feupdateenv.c b/sysdeps/powerpc/nofpu/atomic-feupdateenv.c new file mode 100644 index 0000000000..9334e1192c --- /dev/null +++ b/sysdeps/powerpc/nofpu/atomic-feupdateenv.c @@ -0,0 +1,37 @@ +/* Install given floating-point environment and raise exceptions for + atomic compound assignment. + Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include "soft-fp.h" +#include "soft-supp.h" +#include <signal.h> + +void +__atomic_feupdateenv (const fenv_t *envp) +{ + fenv_union_t u; + int saved_exceptions = __sim_exceptions_thread; + + /* This function postdates the global variables being turned into + compat symbols, so no need to set them. */ + u.fenv = *envp; + __sim_exceptions_thread |= u.l[0]; + __sim_disabled_exceptions_thread = u.l[1]; + if (saved_exceptions & ~__sim_disabled_exceptions_thread) + raise (SIGFPE); +} diff --git a/sysdeps/powerpc/nofpu/flt-rounds.c b/sysdeps/powerpc/nofpu/flt-rounds.c new file mode 100644 index 0000000000..ad2bf941d1 --- /dev/null +++ b/sysdeps/powerpc/nofpu/flt-rounds.c @@ -0,0 +1,38 @@ +/* Return current rounding mode as correct value for FLT_ROUNDS. + Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include "soft-fp.h" +#include "soft-supp.h" + +int +__flt_rounds (void) +{ + switch (__sim_round_mode_thread) + { + case FP_RND_ZERO: + return 0; + case FP_RND_NEAREST: + return 1; + case FP_RND_PINF: + return 2; + case FP_RND_MINF: + return 3; + default: + abort (); + } +} |