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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-04-03 16:39:19 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-04-04 14:29:28 -0300 |
| commit | 44ccc2465c6af5bd811d8258bf744aaafd5392fc (patch) | |
| tree | 3332a0e1abbcdb99c685166da356357ff1076327 /math/Makefile | |
| parent | 932544efa469568525455bcb53d4eabeba0eb295 (diff) | |
| download | glibc-44ccc2465c6af5bd811d8258bf744aaafd5392fc.zip glibc-44ccc2465c6af5bd811d8258bf744aaafd5392fc.tar.gz glibc-44ccc2465c6af5bd811d8258bf744aaafd5392fc.tar.bz2 | |
math: x86 trunc traps when FE_INEXACT is enabled (BZ 31603)
The implementations of trunc functions using x87 floating point (i386 and
x86_64 long double only) traps when FE_INEXACT is enabled. Although
this is a GNU extension outside the scope of the C standard, other
architectures that also support traps do not show this behavior.
The fix moves the implementation to a common one that holds any
exceptions with a 'fnclex' (libc_feholdexcept_setround_387).
Checked on x86_64-linux-gnu and i686-linux-gnu.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Diffstat (limited to 'math/Makefile')
| -rw-r--r-- | math/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/math/Makefile b/math/Makefile index 121fe28..a9fef9e 100644 --- a/math/Makefile +++ b/math/Makefile @@ -539,6 +539,7 @@ tests = \ test-tgmath-int \ test-tgmath-ret \ test-tgmath2 \ + test-trunc-except-2 \ tst-CMPLX \ tst-CMPLX2 \ tst-definitions \ @@ -993,6 +994,7 @@ CFLAGS-test-nan-const.c += -fno-builtin CFLAGS-test-ceil-except-2.c += -fno-builtin CFLAGS-test-floor-except-2.c += -fno-builtin +CFLAGS-test-trunc-except-2.c += -fno-builtin include ../Rules |