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| author | Joseph Myers <joseph@codesourcery.com> | 2017-05-23 16:47:29 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-05-23 16:47:29 +0000 |
| commit | 666c0c5efa6db73632a6894bf028fef9f3b60d71 (patch) | |
| tree | a326647f7dbea09c8ddf1ba9a9dba13f7e77b8e1 /ChangeLog | |
| parent | cfed8ece799b6e6540193a14b41d9de52dc3b08f (diff) | |
| download | glibc-666c0c5efa6db73632a6894bf028fef9f3b60d71.tar.gz glibc-666c0c5efa6db73632a6894bf028fef9f3b60d71.tar.xz glibc-666c0c5efa6db73632a6894bf028fef9f3b60d71.zip | |
Fix sigstack namespace (bug 21511).
The sigstack function was removed in the 2001 edition of POSIX, and the sigstack structure in the 2008 edition. signal.h wrongly includes those declarations even for newer POSIX versions. This patch fixes the conditions, and conform/ expectations, accordingly. This patch makes the minimum change to when these declarations are present, leaving them visible for __USE_MISC as they would previously have been visible by default. Arguably these legacy declarations should only be visible when an old standard is specifically requested, but implementing that would require arranging for the various sigstack implementations to be able to see the struct sigstack type despite it not being in _GNU_SOURCE in that case. Tested for x86_64. [BZ #21511] * signal/signal.h: Include <bits/types/struct_sigstack.h> only if [(__USE_XOPEN_EXTENDED && !__USE_XOPEN2K8) || __USE_MISC]. (sigstack): Declare only if [(__USE_XOPEN_EXTENDED && !__USE_XOPEN2K) || __USE_MISC]. * conform/data/signal.h-data (struct sigstack): Expect type only if [!XOPEN2K8 && !POSIX2008]. (sigstack): Expect function only if [XPG42 || UNIX98].
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 85722c8f86..865c7e9960 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,14 @@ 2017-05-23 Joseph Myers <joseph@codesourcery.com> + [BZ #21511] + * signal/signal.h: Include <bits/types/struct_sigstack.h> only if + [(__USE_XOPEN_EXTENDED && !__USE_XOPEN2K8) || __USE_MISC]. + (sigstack): Declare only if [(__USE_XOPEN_EXTENDED && + !__USE_XOPEN2K) || __USE_MISC]. + * conform/data/signal.h-data (struct sigstack): Expect type only + if [!XOPEN2K8 && !POSIX2008]. + (sigstack): Expect function only if [XPG42 || UNIX98]. + [BZ #21457] * sysdeps/arm/sys/ucontext.h: Do not include <signal.h>, <bits/sigstack.h>, <bits/types/struct_sigstack.h> or |