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-rw-r--r--REORG.TODO/sysdeps/powerpc/fpu/fraiseexcpt.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/fpu/fraiseexcpt.c b/REORG.TODO/sysdeps/powerpc/fpu/fraiseexcpt.c
new file mode 100644
index 0000000000..05f5cb6309
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/fpu/fraiseexcpt.c
@@ -0,0 +1,68 @@
+/* Raise given exceptions.
+ Copyright (C) 1997-2017 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>
+
+#undef feraiseexcept
+int
+__feraiseexcept (int excepts)
+{
+ fenv_union_t u;
+
+ /* Raise exceptions represented by EXCEPTS. It is the responsibility of
+ the OS to ensure that if multiple exceptions occur they are fed back
+ to this process in the proper way; this can happen in hardware,
+ anyway (in particular, inexact with overflow or underflow). */
+
+ /* Get the current state. */
+ u.fenv = fegetenv_register ();
+
+ /* Add the exceptions */
+ u.l = (u.l
+ | (excepts & FPSCR_STICKY_BITS)
+ /* Turn FE_INVALID into FE_INVALID_SOFTWARE. */
+ | (excepts >> ((31 - FPSCR_VX) - (31 - FPSCR_VXSOFT))
+ & FE_INVALID_SOFTWARE));
+
+ /* Store the new status word (along with the rest of the environment),
+ triggering any appropriate exceptions. */
+ fesetenv_register (u.fenv);
+
+ if ((excepts & FE_INVALID))
+ {
+ /* For some reason, some PowerPC chips (the 601, in particular)
+ don't have FE_INVALID_SOFTWARE implemented. Detect this
+ case and raise FE_INVALID_SNAN instead. */
+ u.fenv = fegetenv_register ();
+ if ((u.l & FE_INVALID) == 0)
+ set_fpscr_bit (FPSCR_VXSNAN);
+ }
+
+ /* Success. */
+ return 0;
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__feraiseexcept, __old_feraiseexcept)
+compat_symbol (libm, __old_feraiseexcept, feraiseexcept, GLIBC_2_1);
+#endif
+
+libm_hidden_def (__feraiseexcept)
+libm_hidden_ver (__feraiseexcept, feraiseexcept)
+versioned_symbol (libm, __feraiseexcept, feraiseexcept, GLIBC_2_2);