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* elf: Check for empty tokens before dynamic string token expansion [BZ #22625]Aurelien Jarno2017-12-301-16/+33
| | | | | | | | | | | | | | | | | | | | | | | | | The fillin_rpath function in elf/dl-load.c loops over each RPATH or RUNPATH tokens and interprets empty tokens as the current directory ("./"). In practice the check for empty token is done *after* the dynamic string token expansion. The expansion process can return an empty string for the $ORIGIN token if __libc_enable_secure is set or if the path of the binary can not be determined (/proc not mounted). Fix that by moving the check for empty tokens before the dynamic string token expansion. In addition, check for NULL pointer or empty strings return by expand_dynamic_string_token. The above changes highlighted a bug in decompose_rpath, an empty array is represented by the first element being NULL at the fillin_rpath level, but by using a -1 pointer in decompose_rpath and other functions. Changelog: [BZ #22625] * elf/dl-load.c (fillin_rpath): Check for empty tokens before dynamic string token expansion. Check for NULL pointer or empty string possibly returned by expand_dynamic_string_token. (decompose_rpath): Check for empty path after dynamic string token expansion.
* elf: remove redundant is_path argumentDmitry V. Levin2017-12-271-18/+14
| | | | | | | | | | | is_path argument is no longer used and could be safely removed. * elf/dl-dst.h (DL_DST_COUNT): Remove is_path argument, all callers updated. * elf/dl-load.c (is_dst, _dl_dst_count, _dl_dst_substitute, expand_dynamic_string_token): Likewise. * sysdeps/generic/ldsodefs.h (_dl_dst_count, _dl_dst_substitute): Remove is_path argument.
* elf: remove redundant code from is_dstDmitry V. Levin2017-12-271-5/+3
| | | | | | | | | | | | | | | | | is_dst is called either by _dl_dst_count or by _dl_dst_substitute. _dl_dst_count is called by DL_DST_COUNT only. DL_DST_COUNT is called either by expand_dst with is_path == 0 or by expand_dynamic_string_token. _dl_dst_substitute is called either from expand_dst with is_path == 0 or from expand_dynamic_string_token. The latter function is called either from _dl_map_object with is_path == 0 or from fillin_rpath with is_path == 1 and name containing no ':'. In any case (is_path && name[i] == ':') is always false and all code depending on it can be safely removed. * elf/dl-load.c (is_dst): Remove checks that is_path is set and name contains ':', and all code depending on these checks.
* elf: remove redundant code from _dl_dst_substituteDmitry V. Levin2017-12-271-20/+1
| | | | | | | | | | | | | | There are just two users of _dl_dst_substitute: one is expand_dst that sets is_path argument to 0, another one is expand_dynamic_string_token. The latter function also has just two users: one is _dl_map_object that sets is_path argument to 0, another one is fillin_rpath that sets is_path argument to 1 and name argument contains no ':'. In any case (is_path && name[i] == ':') is always false and all code depending on it can be safely removed. * elf/dl-load.c (_dl_dst_substitute): Remove checks that is_path is set and name contains ':', and all code depending on these checks.
* elf: remove redundant __libc_enable_secure check from fillin_rpathDmitry V. Levin2017-12-191-30/+3
| | | | | | | | | | | | | | | | There are just two users of fillin_rpath: one is decompose_rpath that sets check_trusted argument to 0, another one is _dl_init_paths that sets check_trusted argument to __libc_enable_secure and invokes fillin_rpath only when LD_LIBRARY_PATH is non-empty. Starting with commit glibc-2.25.90-512-gf6110a8fee2ca36f8e2d2abecf3cba9fa7b8ea7d, LD_LIBRARY_PATH is ignored for __libc_enable_secure executables, so check_trusted argument of fillin_rpath is always zero. * elf/dl-load.c (is_trusted_path): Remove. (fillin_rpath): Remove check_trusted argument and its use, all callers changed.
* elf: do not substitute dst in $LD_LIBRARY_PATH twice [BZ #22627]Dmitry V. Levin2017-12-181-19/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Starting with commit glibc-2.18.90-470-g2a939a7e6d81f109d49306bc2e10b4ac9ceed8f9 that introduced substitution of dynamic string tokens in fillin_rpath, _dl_init_paths invokes _dl_dst_substitute for $LD_LIBRARY_PATH twice: the first time it's called directly, the second time the result is passed on to fillin_rpath which calls expand_dynamic_string_token which in turn calls _dl_dst_substitute, leading to the following behaviour: $ mkdir -p /tmp/'$ORIGIN' && cd /tmp/'$ORIGIN' && echo 'int main(){}' |gcc -xc - && strace -qq -E LD_LIBRARY_PATH='$ORIGIN' -e /open ./a.out open("/tmp//tmp/$ORIGIN/tls/x86_64/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) open("/tmp//tmp/$ORIGIN/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) open("/tmp//tmp/$ORIGIN/x86_64/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) open("/tmp//tmp/$ORIGIN/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 Fix this by removing the direct _dl_dst_substitute invocation. * elf/dl-load.c (_dl_init_paths): Remove _dl_dst_substitute preparatory code and invocation.
* elf: Count components of the expanded path in _dl_init_path [BZ #22607]Florian Weimer2017-12-141-9/+4
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* elf: Compute correct array size in _dl_init_paths [BZ #22606]Florian Weimer2017-12-141-7/+7
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* Properly compute offsets of note descriptor and next note [BZ #22370]H.J. Lu2017-11-281-4/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A note header has 3 4-bytes fields, followed by note name and note descriptor. According to gABI, in a note entry, the note name field, not note name size, is padded for the note descriptor. And the note descriptor field, not note descriptor size, is padded for the next note entry. Notes are aligned to 4 bytes in 32-bit objects and 8 bytes in 64-bit objects. For all GNU notes, the name is "GNU" which is 4 bytes. They have the same format in the first 16 bytes in both 32-bit and 64-bit objects. They differ by note descriptor size and note type. So far, .note.ABI-tag and .note.gnu.build-id notes are always aligned to 4 bytes. The exsting codes compute the note size by aligning the note name size and note descriptor size to 4 bytes. It happens to produce the same value as the actual note size by luck since the name size is 4 and offset of the note descriptor is 16. But it will produce the wrong size when note alignment is 8 bytes in 64-bit objects. This patch defines ELF_NOTE_DESC_OFFSET and ELF_NOTE_NEXT_OFFSET to properly compute offsets of note descriptor and next note. It uses alignment of PT_NOTE segment to support both 4-byte and 8-byte note alignments in 64-bit objects. To handle PT_NOTE segments with incorrect alignment, which may lead to an infinite loop, if segment alignment is less than 4, we treate alignment as 4 bytes since some note segments have 0 or 1 byte alignment. [BZ #22370] * elf/dl-hwcaps.c (ROUND): Removed. (_dl_important_hwcaps): Replace ROUND with ELF_NOTE_DESC_OFFSET and ELF_NOTE_NEXT_OFFSET. * elf/dl-load.c (ROUND): Removed. (open_verify): Replace ROUND with ELF_NOTE_NEXT_OFFSET. * elf/readelflib.c (ROUND): Removed. (process_elf_file): Replace ROUND with ELF_NOTE_NEXT_OFFSET. * include/elf.h [!_ISOMAC]: Include <libc-pointer-arith.h>. [!_ISOMAC] (ELF_NOTE_DESC_OFFSET): New. [!_ISOMAC] (ELF_NOTE_NEXT_OFFSET): Likewise.
* Skip PT_DYNAMIC segment with p_filesz == 0 [BZ #22101]H.J. Lu2017-09-261-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | ELF objects generated with "objcopy --only-keep-debug" have Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align DYNAMIC 0x0+e28 0x0+200e40 0x0+200e40 0x0+ 0x0+1a0 RW 0x8 with 0 file size. ld.so should skip such PT_DYNAMIC segments. Without a PT_DYNAMIC segment the loading of the shared object will fail, and therefore ldd on such objects will also fail instead of crashing. This provides better diagnostics for tooling that is attempting to inspect the invalid shared objects which may just contain debug information. [BZ #22101] * elf/Makefile (tests): Add tst-debug1. ($(objpfx)tst-debug1): New. ($(objpfx)tst-debug1.out): Likewise. ($(objpfx)tst-debug1mod1.so): Likewise. * elf/dl-load.c (_dl_map_object_from_fd): Skip PT_DYNAMIC segment with p_filesz == 0. * elf/tst-debug1.c: New file. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* elf: Remove internal_function attributeFlorian Weimer2017-08-311-5/+0
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* Narrowing the visibility of libc-internal.h even further.Zack Weinberg2017-03-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | posix/wordexp-test.c used libc-internal.h for PTR_ALIGN_DOWN; similar to what was done with libc-diag.h, I have split the definitions of cast_to_integer, ALIGN_UP, ALIGN_DOWN, PTR_ALIGN_UP, and PTR_ALIGN_DOWN to a new header, libc-pointer-arith.h. It then occurred to me that the remaining declarations in libc-internal.h are mostly to do with early initialization, and probably most of the files including it, even in the core code, don't need it anymore. Indeed, only 19 files actually need what remains of libc-internal.h. 23 others need libc-diag.h instead, and 12 need libc-pointer-arith.h instead. No file needs more than one of them, and 16 don't need any of them! So, with this patch, libc-internal.h stops including libc-diag.h as well as losing the pointer arithmetic macros, and all including files are adjusted. * include/libc-pointer-arith.h: New file. Define cast_to_integer, ALIGN_UP, ALIGN_DOWN, PTR_ALIGN_UP, and PTR_ALIGN_DOWN here. * include/libc-internal.h: Definitions of above macros moved from here. Don't include libc-diag.h anymore either. * posix/wordexp-test.c: Include stdint.h and libc-pointer-arith.h. Don't include libc-internal.h. * debug/pcprofile.c, elf/dl-tunables.c, elf/soinit.c, io/openat.c * io/openat64.c, misc/ptrace.c, nptl/pthread_clock_gettime.c * nptl/pthread_clock_settime.c, nptl/pthread_cond_common.c * string/strcoll_l.c, sysdeps/nacl/brk.c * sysdeps/unix/clock_settime.c * sysdeps/unix/sysv/linux/i386/get_clockfreq.c * sysdeps/unix/sysv/linux/ia64/get_clockfreq.c * sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c * sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c: Don't include libc-internal.h. * elf/get-dynamic-info.h, iconv/loop.c * iconvdata/iso-2022-cn-ext.c, locale/weight.h, locale/weightwc.h * misc/reboot.c, nis/nis_table.c, nptl_db/thread_dbP.h * nscd/connections.c, resolv/res_send.c, soft-fp/fmadf4.c * soft-fp/fmasf4.c, soft-fp/fmatf4.c, stdio-common/vfscanf.c * sysdeps/ieee754/dbl-64/e_lgamma_r.c * sysdeps/ieee754/dbl-64/k_rem_pio2.c * sysdeps/ieee754/flt-32/e_lgammaf_r.c * sysdeps/ieee754/flt-32/k_rem_pio2f.c * sysdeps/ieee754/ldbl-128/k_tanl.c * sysdeps/ieee754/ldbl-128ibm/k_tanl.c * sysdeps/ieee754/ldbl-96/e_lgammal_r.c * sysdeps/ieee754/ldbl-96/k_tanl.c, sysdeps/nptl/futex-internal.h: Include libc-diag.h instead of libc-internal.h. * elf/dl-load.c, elf/dl-reloc.c, locale/programs/locarchive.c * nptl/nptl-init.c, string/strcspn.c, string/strspn.c * malloc/malloc.c, sysdeps/i386/nptl/tls.h * sysdeps/nacl/dl-map-segments.h, sysdeps/x86_64/atomic-machine.h * sysdeps/unix/sysv/linux/spawni.c * sysdeps/x86_64/nptl/tls.h: Include libc-pointer-arith.h instead of libc-internal.h. * elf/get-dynamic-info.h, sysdeps/nacl/dl-map-segments.h * sysdeps/x86_64/atomic-machine.h: Add multiple include guard.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2017-01-011-1/+1
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* elf: Assume TLS is initialized in _dl_map_object_from_fdFlorian Weimer2016-11-231-47/+7
| | | | | libc.so uses TLS data, so when dlopen is called later, the TLS data structures have already been initialized.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2016-01-041-1/+1
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* NaCl: Use open_resource API for shared objectsRoland McGrath2015-11-101-7/+37
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* ld.so: Add original DSO name if overridden by audit module [BZ #18251]Florian Weimer2015-11-091-5/+28
| | | | | | | | | | | | | | | | | | | | | | | | * elf/dl-load.c (_dl_map_object_from_fd): Add additional parameter for original name of the DSO. Add it to the name list of the DSO if it is actually given. (_dl_map_object): Keep track of whether an audit module rewrote the file name. If yes, pass the original name to _dl_map_object_from_fd in a new parameter, otherwise NULL. When debugging is enabled, log the change of the file name. * sysdeps/mach/hur/dl-sysdep.c: Adjust commented-out call to _dl_map_object_from_fd. * elf/Makefile: Build and run tst-audit11 and tst-audit12. * elf/tst-audit11.c: New file * elf/tst-auditmod11.c: New file. * elf/tst-audit11mod1.c: New file. * elf/tst-audit11mod2.c: New file. * elf/tst-audit11mod2.map: New file. * elf/tst-audit12.c: New file * elf/tst-auditmod12.c: New file. * elf/tst-audit12mod1.c: New file. * elf/tst-audit12mod2.c: New file. * elf/tst-audit12mod2.map: New file. * elf/tst-audit12mod3.c: New file.
* Use ALIGN_* macros in _dl_map_object_from_fd.Carlos O'Donell2015-09-181-4/+4
| | | | | | | | | Cleanup _dl_map_object_from_fd to make it clear exactly what we're doing with the mappings i.e. extending the the start of the map down to a page boundary, extending the end of the map up to a page boundary, and offset itself also to page boundary. The result is much easier to read as expected from the ALIGN_* cleanups.
* Factor file identity rules out of generic rtld code.Roland McGrath2015-07-141-10/+8
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* Fix segmentation fault when LD_LIBRARY_PATH contains only non-existings pathsBram2015-01-251-3/+3
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* Fix recursive dlopen.Carlos O'Donell2015-01-211-9/+5
| | | | | | | | | | | | | | | | | | | The ability to recursively call dlopen is useful for malloc implementations that wish to load other dynamic modules that implement reentrant/AS-safe functions to use in their own implementation. Given that a user malloc implementation may be called by an ongoing dlopen to allocate memory the user malloc implementation interrupts dlopen and if it calls dlopen again that's a reentrant call. This patch fixes the issues with the ld.so.cache mapping and the _r_debug assertion which prevent this from working as expected. See: https://sourceware.org/ml/libc-alpha/2014-12/msg00446.html
* Update copyright dates with scripts/update-copyrights.Joseph Myers2015-01-021-1/+1
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* Add a hook to enable load-time inspection of program headersMatthew Fortune2014-10-311-0/+6
| | | | | | | | | | | This hook can be used to perform additional compatibility checks between shared libraries by inspecting custom program header information. * elf/dl-machine-reject-phdr.h: New file. * elf/dl-load.c: #include that. (open_verify): Call elf_machine_reject_phdr_p and ignore the file if that returned true.
* elf/dl-load.c: Use __strdup.Carlos O'Donell2014-10-281-19/+5
| | | | | | | | | | | | | | | | | | | | | | During a refactoring pass several repeated blocks of code in dl-load.c were turned into a call to a local function named local_strdup. There is no need for local_strdup, and the routines should instead call __strdup. This change does just that. We call the internal symbol __strdup because calling strdup is unsafe. The user might be using a standard that doesn't include strdup and may have defined this symbol in their application. During a static link we might reference the user defined symbol and crash if it doesn't implement a standards conforming strdup. The resulting code is simpler to understand, and makes it easier to debug. No regressions on x86_64. 2014-10-28 Carlos O'Donell <carlos@redhat.com> * dl-load.c (local_strdup): Remove. (expand_dynamic_string_token): Use __strdup. (decompose_rpath): Likewise. (_dl_map_object): Likewise.
* Don't use INTVARDEF/INTUSE with __libc_enable_secure (bug 14132).Joseph Myers2014-10-101-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the removal of the obsolete INTDEF / INTVARDEF / INTUSE mechanism, this patch replaces its use for __libc_enable_secure with the use of rtld_hidden_data_def and rtld_hidden_proto. Tested for x86_64 that installed stripped shared libraries are unchanged by the patch. [BZ #14132] * elf/dl-sysdep.c (__libc_enable_secure): Use rtld_hidden_data_def instead of INTVARDEF. (_dl_sysdep_start): Do not use INTUSE with __libc_enable_secure. * sysdeps/mach/hurd/dl-sysdep.c (__libc_enable_secure): Use rtld_hidden_data_def instead of INTVARDEF. (_dl_sysdep_start): Do not use INTUSE with __libc_enable_secure. * elf/dl-deps.c (expand_dst): Likewise. * elf/dl-load.c (_dl_dst_count): Likewise. (_dl_dst_substitute): Likewise. (decompose_rpath): Likewise. (_dl_init_paths): Likewise. (open_path): Likewise. (_dl_map_object): Likewise. * elf/rtld.c (dl_main): Likewise. (process_dl_audit): Likewise. (process_envvars): Likewise. * include/unistd.h [IS_IN_rtld] (__libc_enable_secure_internal): Remove declaration. (__libc_enable_secure): Use rtld_hidden_proto.
* remove nested functions from elf/dl-load.cKostya Serebryany2014-10-091-36/+52
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* Remove second argument from TLS_INIT_TP macroAndreas Schwab2014-05-271-1/+1
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* Factor mmap/munmap of PT_LOAD segments out of _dl_map_object_from_fd et al.Roland McGrath2014-04-031-198/+23
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* 2014-03-27 Paul Pluzhnikov <ppluzhnikov@google.com>Paul Pluzhnikov2014-03-271-10/+8
| | | | | * elf/dl-load.c: Finish conversion of __builtin_expect into __glibc_{un}likely.
* 2014-03-26 Paul Pluzhnikov <ppluzhnikov@google.com>Paul Pluzhnikov2014-03-261-40/+36
| | | | * elf/dl-load.c: Convert __builtin_expect into __glibc_{un}likely.
* Fix BZ #16634.Paul Pluzhnikov2014-03-241-12/+24
| | | | | | | | | | | | | | | | | | | | | | | | | An application that erroneously tries to repeatedly dlopen("a.out", ...) may hit assertion failure: Inconsistency detected by ld.so: dl-tls.c: 474: _dl_allocate_tls_init: Assertion `listp != ((void *)0)' failed! dlopen() actually fails with "./a.out: cannot dynamically load executable", but it does so after incrementing dl_tls_max_dtv_idx. Once we run out of TLS_SLOTINFO_SURPLUS (62), we exit with above assertion failure. 2014-03-24 Paul Pluzhnikov <ppluzhnikov@google.com> [BZ #16634] * elf/dl-load.c (open_verify): Add mode parameter. Error early when ET_EXEC and mode does not have __RTLD_OPENEXEC. (open_path): Change from boolean 'secure' to complete flag 'mode' (_dl_map_object): Adjust. * elf/Makefile (tests): Add tst-dlopen-aout. * elf/tst-dlopen-aout.c: New test.
* 2014-03-12 Paul Pluzhnikov <ppluzhnikov@google.com>Paul Pluzhnikov2014-03-121-2/+2
| | | | | | | | | | | | [BZ #16381] * elf/Makefile (tests): Add tst-pie2. (tests-pie): Add tst-pie2. * elf/tst-pie2.c: New file. * elf/dl-load.c (_dl_map_object_from_fd): Assert correct l_type for ET_EXEC. * elf/rtld.c (map_doit): Load executable as lt_executable. (dl_main): Likewise.
* Use glibc_likely instead __builtin_expect.Ondřej Bílka2014-02-101-25/+25
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* [BZ #16046] Static dlopen correction fallout fixes.Maciej W. Rozycki2014-01-311-10/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes to address issues from BZ #15022 resolution, as follows: * TLS updates to csu/libc-tls.c -- we now have a proper main map, so there's no longer a need to create a separate fake one to keep TLS structures, * random updates to elf/dl-close.c -- LM_ID_BASE is now a valid name space ID for static executables as well, so assert that we don't unload the main map. Similarly dl_nns isn't supposed to be 0 for static executables anymore, * actual BZ #16046 fix to elf/dl-iteratephdr.c -- the dl_iterate_phdr special function for static executables isn't needed anymore, provided that l_phdr and l_phnum members of the main map have been properly initialized (done in _dl_non_dynamic_init in elf/dl-support.c now), * ld.so.cache loader update to elf/dl-load.c -- GL(dl_ns)[LM_ID_BASE]._ns_loaded is now always initialized in static executables so can become the fallback loader map to check for DF_1_NODEFLIB, provided that the l_flags_1 member of the main map has been properly initialized (done in elf/dl-support.c now); this also ensures previous semantics elsewhere in elf/dl-load.c, * matching updates to elf/dl-support.c -- to complement the two fixes above.
* Obvious comment typo fix ("openened") in elf/dl-load.c.Brooks Moses2014-01-081-1/+1
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* Update copyright notices with scripts/update-copyrightsAllan McRae2014-01-011-1/+1
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* Return fixed version of breaking of RPATH when $ORIGIN contains colonsOndřej Bílka2013-12-021-10/+16
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* Revert b75891075bece24be9fd85618f18af4a2daf7f1cOndřej Bílka2013-11-181-16/+10
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* Fix breaking of RPATH when $ORIGIN contains colons. Fixes bug 10253Ondřej Bílka2013-11-181-10/+16
| | | | | | We first expanded origin and then split string by colons. This misbehaves when $ORIGIN contain colon so we first split string, then expand $ORIGIN.
* Fix typos.Ondřej Bílka2013-08-211-1/+1
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* Test for mprotect failure in dl-load.c (bug 12492).Pierre Ynard2013-06-281-1/+5
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* [BZ #15022] Correct global-scope dlopen issues in static executables.Maciej W. Rozycki2013-06-281-7/+1
| | | | | | | | This change creates a link map in static executables to serve as the global search list for dlopen. It fixes a problem with the inability to access the global symbol object and a crash on an attempt to map a DSO into the global scope. Some code that has become dead after the addition of this link map is removed too and test cases are provided.
* Avoid crashing in LD_DEBUG when program name is unavailableSiddhesh Poyarekar2013-05-291-3/+2
| | | | | | | | | Resolves: #15465 The program name may be unavailable if the user application tampers with argc and argv[]. Some parts of the dynamic linker caters for this while others don't, so this patch consolidates the check and fallback into a single macro and updates all users.
* Fix invalid free of memory allocated during rtld initAndreas Schwab2013-04-111-0/+6
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* Update copyright notices with scripts/update-copyrights.Joseph Myers2013-01-021-1/+1
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* Cast to __intptr_t before casting pointer to int64H.J. Lu2012-11-261-1/+2
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* Invoke DL_AFTER_LOAD if definedChris Metcalf2012-10-301-0/+4
| | | | | | | | | | | This hook is useful for any arch-specific functionality that should be done on loaded objects. For the tile architecture, the hook is already provided (though we switch to using the new macro name with this commit) and implements a simulator notifier so that the simulator can load Elf symbols to match the object and generate better error messages for PC's. Also, remove a spurious definition of DL_UNMAP in dl-runtime.c
* Retry read in ld.so if the entire ELF header is not read inSiddhesh Poyarekar2012-10-201-2/+12
| | | | | | | [BZ #13601] A read operation could return less than requested data for a number of reasons.
* Clean up conditionalize of ld.so.cache support.Roland McGrath2012-10-031-5/+7
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* Use ElfW(Off) rather than off_t for offsets within ELF files.Roland McGrath2012-10-021-2/+2
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