glibc/sysdeps/unix/sysv/linux/x86_64
Florian Weimer 41d6f74e6c nptl: Remove vfork IFUNC-based forwarder from libpthread [BZ #20188]
With commit f0b2132b35 ("ld.so:
Support moving versioned symbols between sonames [BZ #24741]"), the
dynamic linker will find the definition of vfork in libc and binds
a vfork reference to that symbol, even if the soname in the version
reference says that the symbol should be located in libpthread.

As a result, the forwarder (whether it's IFUNC-based or a duplicate
of the libc implementation) is no longer necessary.

On older architectures, a placeholder symbol is required, to make sure
that the GLIBC_2.1.2 symbol version does not go away, or is turned in
to a weak symbol definition by the link editor.  (The symbol version
needs to preserved so that the symbol coverage check in
elf/dl-version.c does not fail for old binaries.)

mips32 is an outlier: It defined __vfork@@GLIBC_2.2, but the
baseline is GLIBC_2.0.  Since there are other @@GLIBC_2.2 symbols,
the placeholder symbol is not needed there.
2019-07-02 16:51:13 +02:00
..
64 nptl: Remove vfork IFUNC-based forwarder from libpthread [BZ #20188] 2019-07-02 16:51:13 +02:00
x32 nptl: Remove vfork IFUNC-based forwarder from libpthread [BZ #20188] 2019-07-02 16:51:13 +02:00
Implies
Makefile
Versions
____longjmp_chk.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
__start_context.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
brk.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
cancellation.S x86: Remove arch-specific low level lock implementation 2019-05-14 08:48:02 -03:00
clone.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
compat-timer.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
configure
configure.ac
dl-cache.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-procinfo.c
dl-procinfo.h
getcontext.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
init-first.c Add missing VDSO_{NAME,HASH}_* macros and use them for PREPARE_VERSION_KNOWN 2019-06-21 10:43:22 -03:00
ipc_priv.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
kernel-features.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
kernel_stat.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ldconfig.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ldd-rewrite.sed
libc-cancellation.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
libmvec.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
librt-cancellation.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
makecontext.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
profil-counter.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
pthread_setaffinity.c
readelflib.c
register-dump.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sched_setaffinity.c
setcontext.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sigaction.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sigaltstack-offsets.sym
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sigprocmask.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
swapcontext.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
syscall.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
syscalls.list
sysdep.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
timer_create.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
timer_delete.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
timer_getoverr.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
timer_gettime.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
timer_settime.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ucontext_i.sym x86-64/CET: Extend ucontext_t to save shadow stack 2018-07-25 06:37:31 -07:00
vfork.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00