diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/powerpc/fpu/fegetmode.c | 26 | ||||
| -rw-r--r-- | sysdeps/powerpc/fpu/fesetmode.c | 49 | ||||
| -rw-r--r-- | sysdeps/powerpc/nofpu/fegetmode.c | 33 | ||||
| -rw-r--r-- | sysdeps/powerpc/nofpu/fesetmode.c | 34 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc32/e500/nofpu/fegetmode.c | 37 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc32/e500/nofpu/fesetmode.c | 43 |
6 files changed, 222 insertions, 0 deletions
diff --git a/sysdeps/powerpc/fpu/fegetmode.c b/sysdeps/powerpc/fpu/fegetmode.c new file mode 100644 index 0000000000..1bd49f94dd --- /dev/null +++ b/sysdeps/powerpc/fpu/fegetmode.c @@ -0,0 +1,26 @@ +/* Store current floating-point control modes. PowerPC version. + Copyright (C) 2016 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 <fenv_libc.h> + +int +fegetmode (femode_t *modep) +{ + *modep = fegetenv_register (); + return 0; +} diff --git a/sysdeps/powerpc/fpu/fesetmode.c b/sysdeps/powerpc/fpu/fesetmode.c new file mode 100644 index 0000000000..ec6d11c775 --- /dev/null +++ b/sysdeps/powerpc/fpu/fesetmode.c @@ -0,0 +1,49 @@ +/* Install given floating-point control modes. PowerPC version. + Copyright (C) 2016 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 <fenv_libc.h> +#include <fpu_control.h> + +#define _FPU_MASK_ALL (_FPU_MASK_ZM | _FPU_MASK_OM | _FPU_MASK_UM \ + | _FPU_MASK_XM | _FPU_MASK_IM) + +#define FPU_STATUS 0xbffff700ULL + +int +fesetmode (const femode_t *modep) +{ + fenv_union_t old, new; + + /* Logic regarding enabled exceptions as in fesetenv. */ + + new.fenv = *modep; + old.fenv = fegetenv_register (); + new.l = (new.l & ~FPU_STATUS) | (old.l & FPU_STATUS); + + if (old.l == new.l) + return 0; + + if ((old.l & _FPU_MASK_ALL) == 0 && (new.l & _FPU_MASK_ALL) != 0) + (void) __fe_nomask_env_priv (); + + if ((old.l & _FPU_MASK_ALL) != 0 && (new.l & _FPU_MASK_ALL) == 0) + (void) __fe_mask_env (); + + fesetenv_register (new.fenv); + return 0; +} diff --git a/sysdeps/powerpc/nofpu/fegetmode.c b/sysdeps/powerpc/nofpu/fegetmode.c new file mode 100644 index 0000000000..e7d68182f6 --- /dev/null +++ b/sysdeps/powerpc/nofpu/fegetmode.c @@ -0,0 +1,33 @@ +/* Store current floating-point control modes. PowerPC soft-float version. + Copyright (C) 2016 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 +fegetmode (femode_t *modep) +{ + fenv_union_t u; + + u.l[0] = __sim_round_mode_thread; + u.l[1] = __sim_disabled_exceptions_thread; + + *modep = u.fenv; + + return 0; +} diff --git a/sysdeps/powerpc/nofpu/fesetmode.c b/sysdeps/powerpc/nofpu/fesetmode.c new file mode 100644 index 0000000000..8f9f66c8f0 --- /dev/null +++ b/sysdeps/powerpc/nofpu/fesetmode.c @@ -0,0 +1,34 @@ +/* Install given floating-point control modes. PowerPC soft-float version. + Copyright (C) 2016 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 +fesetmode (const femode_t *modep) +{ + fenv_union_t u; + + u.fenv = *modep; + __sim_round_mode_thread = u.l[0]; + SIM_SET_GLOBAL (__sim_round_mode_global, __sim_round_mode_thread); + __sim_disabled_exceptions_thread = u.l[1]; + SIM_SET_GLOBAL (__sim_disabled_exceptions_global, + __sim_disabled_exceptions_thread); + return 0; +} diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fegetmode.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fegetmode.c new file mode 100644 index 0000000000..b65df80249 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fegetmode.c @@ -0,0 +1,37 @@ +/* Store current floating-point control modes. e500 version. + Copyright (C) 2016 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 <fenv_libc.h> +#include <sysdep.h> +#include <sys/prctl.h> + +int +fegetmode (femode_t *modep) +{ + fenv_union_t u; + INTERNAL_SYSCALL_DECL (err); + int r; + + r = INTERNAL_SYSCALL (prctl, err, 2, PR_GET_FPEXC, &u.l[0]); + if (INTERNAL_SYSCALL_ERROR_P (r, err)) + return -1; + + u.l[1] = fegetenv_register (); + *modep = u.fenv; + return 0; +} diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fesetmode.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fesetmode.c new file mode 100644 index 0000000000..6c97316f59 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fesetmode.c @@ -0,0 +1,43 @@ +/* Install given floating-point control modes. e500 version. + Copyright (C) 2016 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 <fenv_libc.h> +#include <sysdep.h> +#include <sys/prctl.h> + +#define SPEFSCR_STATUS 0xff3eff00 + +int +fesetmode (const femode_t *modep) +{ + fenv_union_t u; + INTERNAL_SYSCALL_DECL (err); + int r; + + u.fenv = *modep; + unsigned int spefscr = fegetenv_register (); + spefscr = (spefscr & SPEFSCR_STATUS) | (u.l[1] & ~SPEFSCR_STATUS); + + fesetenv_register (spefscr); + r = INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC, + u.l[0] | PR_FP_EXC_SW_ENABLE); + if (INTERNAL_SYSCALL_ERROR_P (r, err)) + return -1; + + return 0; +} |