mirror of git://sourceware.org/git/glibc.git
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> |
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|---|---|---|
| .. | ||
| types | ||
| argp-ldbl.h | ||
| atomic_wide_counter.h | ||
| cmathcalls.h | ||
| cpu-set.h | ||
| dl_find_object.h | ||
| dlfcn.h | ||
| endian.h | ||
| err-ldbl.h | ||
| error-ldbl.h | ||
| error.h | ||
| fcntl2.h | ||
| getopt_core.h | ||
| getopt_ext.h | ||
| getopt_posix.h | ||
| locale.h | ||
| mathcalls-helper-functions.h | ||
| mathcalls-narrow.h | ||
| mathcalls.h | ||
| monetary-ldbl.h | ||
| mqueue2.h | ||
| poll2.h | ||
| posix1_lim.h | ||
| posix2_lim.h | ||
| printf-ldbl.h | ||
| select2.h | ||
| setjmp2.h | ||
| sigstack.h | ||
| sigstksz.h | ||
| socket2.h | ||
| stab.def | ||
| statx-generic.h | ||
| statx.h | ||
| stdio-ldbl.h | ||
| stdio.h | ||
| stdio2.h | ||
| stdlib-float.h | ||
| stdlib-ldbl.h | ||
| stdlib.h | ||
| string2.h | ||
| string_fortified.h | ||
| strings_fortified.h | ||
| syslog-ldbl.h | ||
| syslog.h | ||
| types.h | ||
| unistd.h | ||
| unistd_ext.h | ||
| wchar-ldbl.h | ||
| wchar2.h | ||
| wctype-wchar.h | ||
| xopen_lim.h | ||