glibc/include/bits
Florian Weimer 5d28a8962d elf: Add _dl_find_object function
It can be used to speed up the libgcc unwinder, and the internal
_dl_find_dso_for_object function (which is used for caller
identification in dlopen and related functions, and in dladdr).

_dl_find_object is in the internal namespace due to bug 28503.
If libgcc switches to _dl_find_object, this namespace issue will
be fixed.  It is located in libc for two reasons: it is necessary
to forward the call to the static libc after static dlopen, and
there is a link ordering issue with -static-libgcc and libgcc_eh.a
because libc.so is not a linker script that includes ld.so in the
glibc build tree (so that GCC's internal -lc after libgcc_eh.a does
not pick up ld.so).

It is necessary to do the i386 customization in the
sysdeps/x86/bits/dl_find_object.h header shared with x86-64 because
otherwise, multilib installations are broken.

The implementation uses software transactional memory, as suggested
by Torvald Riegel.  Two copies of the supporting data structures are
used, also achieving full async-signal-safety.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-12-28 22:52:56 +01:00
..
types time: Add 64-bit time_t support for ftime 2020-10-27 09:54:50 -03:00
argp-ldbl.h ldbl-opt: Add argp_error and argp_failure (bug 23983) 2019-03-01 15:21:32 -03:00
atomic_wide_counter.h nptl: Extract <bits/atomic_wide_counter.h> from pthread_cond_common.c 2021-11-17 12:20:13 +01:00
cmathcalls.h
cpu-set.h linux: Use sched_getaffinity for __get_nprocs (BZ #27645) 2021-05-07 13:54:09 -03:00
dl_find_object.h elf: Add _dl_find_object function 2021-12-28 22:52:56 +01:00
dlfcn.h
endian.h Split up endian.h to minimize exposure of BYTE_ORDER. 2019-10-01 14:54:46 -07:00
err-ldbl.h ldbl-opt: Add err, errx, verr, verrx, warn, warnx, vwarn, and vwarnx (bug 23984) 2019-03-01 15:24:51 -03:00
error-ldbl.h ldbl-opt: Add error and error_at_line (bug 23984) 2019-03-01 15:26:36 -03:00
error.h
fcntl2.h
getopt_core.h
getopt_ext.h
getopt_posix.h
locale.h
mathcalls-helper-functions.h
mathcalls-narrow.h Add build infrastructure for narrowing libm functions. 2018-02-09 21:18:52 +00:00
mathcalls.h
monetary-ldbl.h Add *-ldbl.h headers to include/bits 2018-12-11 15:00:11 -02:00
mqueue2.h Add missing header wrappers under include/ 2019-02-16 08:25:16 +01:00
poll2.h
posix1_lim.h
posix2_lim.h
printf-ldbl.h Add *-ldbl.h headers to include/bits 2018-12-11 15:00:11 -02:00
select2.h
setjmp2.h
sigstack.h sysconf: Add _SC_MINSIGSTKSZ/_SC_SIGSTKSZ [BZ #20305] 2021-02-01 11:00:52 -08:00
sigstksz.h sysconf: Add _SC_MINSIGSTKSZ/_SC_SIGSTKSZ [BZ #20305] 2021-02-01 11:00:52 -08:00
socket2.h
stab.def
statx-generic.h <sys/stat.h>: Use Linux UAPI header for statx if available and useful 2019-06-12 13:04:43 +02:00
statx.h Add the statx function 2018-07-10 16:14:45 +02:00
stdio2.h Add missing header wrappers under include/ 2019-02-16 08:25:16 +01:00
stdio-ldbl.h Add *-ldbl.h headers to include/bits 2018-12-11 15:00:11 -02:00
stdio.h Add missing header wrappers under include/ 2019-02-16 08:25:16 +01:00
stdlib-float.h
stdlib-ldbl.h Add *-ldbl.h headers to include/bits 2018-12-11 15:00:11 -02:00
stdlib.h
string2.h
string_fortified.h
strings_fortified.h
syslog-ldbl.h Add *-ldbl.h headers to include/bits 2018-12-11 15:00:11 -02:00
syslog.h
types.h
unistd_ext.h linux: Add close_range 2021-07-08 14:08:13 -03:00
unistd.h
wchar2.h
wchar-ldbl.h Add *-ldbl.h headers to include/bits 2018-12-11 15:00:11 -02:00
wctype-wchar.h
xopen_lim.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00