If an error occurs during the tracing operation, particularly during a
call to lock_and_info() which calls _dl_addr, we may end up calling back
into the malloc-subsystem and relock the loader lock and deadlock. For
all intents and purposes the call to _dl_addr can call any of the malloc
family API functions and so we should disable all tracing before calling
such loader functions. This is similar to the strategy that the new
malloc tracer takes when calling the real malloc, namely that all
tracing ceases at the boundary to the real function and any faults at
that point are the purvue of the library (though the new tracer does
this on a per-thread basis in an MT-safe fashion). Since the new tracer
and the hook deprecation are not yet complete we must fix these issues
where we can.
Tested on x86_64 with no regressions.
Co-authored-by: Kwok Cheung Yeung <kcy@codesourcery.com>
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit e621246ec6)
The Japanese era name will be changed on May 1, 2019. The Japanese
government made a preliminary announcement on April 1, 2019.
The glibc ja_JP locale must be updated to include the new era name for
strftime's alternative year format support.
This is a minimal cherry pick of just the required locale changes.
(cherry picked from commit 466afec308)
The offset in era-string format for Taisho gan-nen (1912) is currently
defined as 2, but it should be 1. So fix it. "Gan-nen" means the 1st
(origin) year, Taisho started on July 30, 1912.
Reported-by: Morimitsu, Junji <junji.morimitsu@hpe.com>
Reviewed-by: Rafal Luzynski <digitalfreak@lingonborough.com>
ChangeLog:
[BZ #24162]
* localedata/locales/ja_JP (LC_TIME): Change the offset for Taisho
gan-nen from 2 to 1. Problem reported by Morimitsu, Junji.
(cherry picked from commit 31effacee2)
This patch adds vx and vxe as important hwcaps
which allows one to provide shared libraries
tuned for platforms with non-vx/-vxe, vx or vxe.
ChangeLog:
* sysdeps/s390/dl-procinfo.h (HWCAP_IMPORTANT):
Add HWCAP_S390_VX and HWCAP_S390_VXE.
(cherry picked from commit 61f5e9470f)
Conflicts:
ChangeLog
Problem found by AddressSanitizer, reported by Hongxu Chen in:
https://debbugs.gnu.org/34140
* posix/regexec.c (proceed_next_node):
Do not read past end of input buffer.
(cherry picked from commit 583dd860d5)
Starting with commit 1616d034b6
the output was corrupted on some platforms as _dl_procinfo
was called for every auxv entry and on some architectures like s390
all entries were represented as "AT_HWCAP".
This patch is removing the condition and let _dl_procinfo decide if
an entry is printed in a platform specific or generic way.
This patch also adjusts all _dl_procinfo implementations which assumed
that they are only called for AT_HWCAP or AT_HWCAP2. They are now just
returning a non-zero-value for entries which are not handled platform
specifc.
ChangeLog:
* elf/dl-sysdep.c (_dl_show_auxv): Remove condition and always
call _dl_procinfo.
* sysdeps/unix/sysv/linux/s390/dl-procinfo.h (_dl_procinfo):
Ignore types other than AT_HWCAP.
* sysdeps/sparc/dl-procinfo.h (_dl_procinfo): Likewise.
* sysdeps/unix/sysv/linux/i386/dl-procinfo.h (_dl_procinfo):
Likewise.
* sysdeps/powerpc/dl-procinfo.h (_dl_procinfo): Adjust comment
in the case of falling back to generic output mechanism.
* sysdeps/unix/sysv/linux/arm/dl-procinfo.h (_dl_procinfo):
Likewise.
(cherry picked from commit 7c6513082b)
Conflicts:
ChangeLog
