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| author | Joseph Myers <joseph@codesourcery.com> | 2013-06-17 17:20:23 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2013-06-17 17:20:23 +0000 |
| commit | 3023a72eb83751a23b01b6cb996fb81fe3abbcb6 (patch) | |
| tree | 9dc05fe06ed6a8dd31c1809666bc0f568ea5fdab /ports | |
| parent | 12086fb4835639d1762622d80980a7500799b63e (diff) | |
| download | glibc-3023a72eb83751a23b01b6cb996fb81fe3abbcb6.tar.gz glibc-3023a72eb83751a23b01b6cb996fb81fe3abbcb6.tar.xz glibc-3023a72eb83751a23b01b6cb996fb81fe3abbcb6.zip | |
Make ARM feenableexcept detect failure (bug 14907).
Diffstat (limited to 'ports')
| -rw-r--r-- | ports/ChangeLog.arm | 6 | ||||
| -rw-r--r-- | ports/sysdeps/arm/feenablxcpt.c | 12 |
2 files changed, 18 insertions, 0 deletions
diff --git a/ports/ChangeLog.arm b/ports/ChangeLog.arm index 81792d2aa4..00f37892cd 100644 --- a/ports/ChangeLog.arm +++ b/ports/ChangeLog.arm @@ -1,3 +1,9 @@ +2013-06-17 Joseph Myers <joseph@codesourcery.com> + + [BZ #14907] + * sysdeps/arm/feenablxcpt.c (feenableexcept): Test whether all + requested exception traps were enabled and return -1 if not. + 2013-06-15 Siddhesh Poyarekar <siddhesh@redhat.com> * sysdeps/unix/sysv/linux/arm/nptl/libpthread.abilist: Update. diff --git a/ports/sysdeps/arm/feenablxcpt.c b/ports/sysdeps/arm/feenablxcpt.c index baad4320cc..e2e287b6e5 100644 --- a/ports/sysdeps/arm/feenablxcpt.c +++ b/ports/sysdeps/arm/feenablxcpt.c @@ -39,6 +39,18 @@ feenableexcept (int excepts) _FPU_SETCW(new_exc); + if (excepts != 0) + { + /* VFPv3 and VFPv4 do not support trapping exceptions, so + test whether the relevant bits were set and fail if + not. */ + unsigned int temp; + _FPU_GETCW (temp); + if ((temp & (excepts << FE_EXCEPT_SHIFT)) + != (excepts << FE_EXCEPT_SHIFT)) + return -1; + } + return old_exc; } |