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2014-05-27Remove second argument from TLS_INIT_TP macroAndreas Schwab2-3/+3
2014-05-16Use existing makefile variables for dependencies on glibc libraries.Joseph Myers1-2/+2
glibc's Makeconfig defines some variables such as $(libm) and $(libdl) for linking with libraries built by glibc, and nptl/Makeconfig (included by the toplevel Makeconfig) defines others such as $(shared-thread-library). In some places glibc's Makefiles use those variables when linking against the relevant libraries, but in other places they hardcode the location of the libraries in the build tree. This patch cleans up various places to use the variables that already exist (in the case of libm, replacing several duplicate definitions of a $(link-libm) variable in subdirectory Makefiles). (It's not necessarily exactly equivalent to what the existing code does - in particular, $(shared-thread-library) includes libpthread_nonshared, but is replacing places that just referred to libpthread.so. But I think that change is desirable on the general principle of linking things as close as possible to the way in which they would be linked with an installed library, unless there is a clear reason not to do so.) To support running tests with an installed copy of glibc without needing the full build tree from when that copy was built, I think it will be useful to use such variables more generally and systematically - every time the rules for building a test refer to some file from the build tree that's also installed by glibc, use a makefile variable so that the installed-testing case can point those variables to installed copies of the files. This patch just deals with straightforward cases where such variables already exist. It's quite possible some uses of $(shared-thread-library) should actually be a new $(thread-library) variable that's set appropriately in the --disable-shared case, if those uses would in fact work without shared libraries. I didn't change the status quo that those cases hardcode use of a shared library whether or not it's actually needed (but other uses such as $(libm) and $(libdl) would now get the static library if the shared library isn't built, when some previously hardcoded use of the shared library - if they actually need shared libraries, the test itself needs an enable-shared conditional anyway). Tested x86_64. * benchtests/Makefile ($(addprefix $(objpfx)bench-,$(bench-math))): Depend on $(libm), not $(common-objpfx)math/libm.so. ($(addprefix $(objpfx)bench-,$(bench-pthread))): Depend on $(shared-thread-library), not $(common-objpfx)nptl/libpthread.so. * elf/Makefile ($(objpfx)noload): Depend on $(libdl), not $(common-objpfx)dlfcn/libdl.so. ($(objpfx)tst-audit8): Depend on $(libm), not $(common-objpfx)math/libm.so. * malloc/Makefile ($(objpfx)libmemusage.so): Depend on $(libdl), not $(common-objpfx)dlfcn/libdl.so. * math/Makefile ($(addprefix $(objpfx),$(filter-out $(tests-static),$(tests)))): Depend on $(libm), not $(objpfx)libm.so. Do not condition on [$(build-shared) = yes]. ($(objpfx)test-fenv-tls): Depend on $(shared-thread-library), not $(common-objpfx)nptl/libpthread.so. * misc/Makefile ($(objpfx)tst-tsearch): Depend on $(libm), not $(common-objpfx)math/libm.so$(libm.so-version) or $(common-objpfx)math/libm.a depending on [$(build-shared) = yes]. * nptl/Makefile ($(objpfx)tst-unload): Depend on $(libdl), not $(common-objpfx)dlfcn/libdl.so. * setjmp/Makefile (link-libm): Remove variable. ($(objpfx)tst-setjmp-fp): Depend on $(libm), not $(link-libm). * stdio-common/Makefile (link-libm): Remove variable. ($(objpfx)tst-printf-round): Depend on $(libm), not $(link-libm). * stdlib/Makefile (link-libm): Remove variable. ($(objpfx)bug-getcontext): Depend on $(libm), not $(link-libm). ($(objpfx)tst-strtod-round): Likewise. ($(objpfx)tst-tininess): Likewise. ($(objpfx)tst-strtod-underflow): Likewise. ($(objpfx)tst-strtod6): Likewise. ($(objpfx)tst-tls-atexit): Depend on $(shared-thread-library) and $(libdl), not $(common-objpfx)nptl/libpthread.so and $(common-objpfx)dlfcn/libdl.so.
2014-05-14Remove last use of USE___THREADAndreas Schwab1-149/+5
2014-05-09Fix elf/tst-tls9-static buildAdhemerval Zanella1-2/+2
This patch fixes the tst-tlsmod[5/6].so build in system that uses -Wl,--as-needed as default in linker option. Without this option the testing shared library that does not have libc.so in DT_NEEDED and the tst-tls9-static fails in architecture that use the ./sysdeps/unix/sysv/linux/<arch>/dl-static.c trick.
2014-05-05Move rules for Linux-specific pldd program to Linux-specific Makefile.Roland McGrath1-6/+2
2014-04-112014-04-11 Paul Pluzhnikov <ppluzhnikov@google.com>Paul Pluzhnikov1-1/+4
* elf/Makefile (tests): make tst-dlopen-aout conditional on enable-hardcoded-path-in-tests
2014-04-03Factor mmap/munmap of PT_LOAD segments out of _dl_map_object_from_fd et al.Roland McGrath6-200/+350
2014-04-03elf/dl-lookup.c: Remove obsolete comment about nested functionWill Newton1-5/+4
The nested function referred to has gone away so remove the comment. Also move the variable declaration down to where other variables of a similar lifetime are declared for clarity. 2014-04-03 Will Newton <will.newton@linaro.org> * elf/dl-lookup.c (do_lookup_x): Remove comment referring to nested function and move variable declarations down to before first use.
2014-03-272014-03-27 Paul Pluzhnikov <ppluzhnikov@google.com>Paul Pluzhnikov1-10/+8
* elf/dl-load.c: Finish conversion of __builtin_expect into __glibc_{un}likely.
2014-03-262014-03-26 Paul Pluzhnikov <ppluzhnikov@google.com>Paul Pluzhnikov1-40/+36
* elf/dl-load.c: Convert __builtin_expect into __glibc_{un}likely.
2014-03-25Add empty GLIBC_2.2.5 version to elf/Versions.Joseph Myers1-0/+3
As needed for SHLIB_COMPAT calls using this version. * elf/Versions (libc) [EXPORT_UNWIND_FIND_FDE]: Add empty GLIBC_2.2.5 version.
2014-03-24Address post-commit patch comments.Paul Pluzhnikov1-2/+8
2014-03-24 Paul Pluzhnikov <ppluzhnikov@google.com> * elf/tst-dlopen-aout.c: Adjust comments. Use test-skeleton.c
2014-03-24Fix BZ #16634.Paul Pluzhnikov3-13/+87
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.
2014-03-13stop supporting bash-1.xMike Frysinger1-15/+8
We've stopped supporting toolchain packages older than 2009, so punting bash-1.x is reasonable when bash-2 was released almost 20 years ago.
2014-03-13sotruss: drop ksh support and add basic POSIX shell supportMike Frysinger2-10/+7
This script works fine under bash as-is, so we don't need ksh anymore. Once we tweak the function style, the code even works (for the most part) under a POSIX shell. The localized strings will be prepended with a $, but it is otherwise functional.
2014-03-13Use __ehdr_start, when available, for rtld to get its own headers.Roland McGrath1-4/+19
2014-03-13Add missing elf/tst-pie2.c -- should have been inPaul Pluzhnikov1-0/+38
commit 798212a01311491d5e14fcda687460b75f8ca286
2014-03-122014-03-12 Paul Pluzhnikov <ppluzhnikov@google.com>Paul Pluzhnikov3-6/+8
[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.
2014-03-07Make tests consistently use *.out output files.Joseph Myers1-5/+5
This patch systematically renames miscellaneous tests so their outputs use a *.out name (unless the test is just running some glibc program with its conventional output file name, rather than a special program at all, as in catgets tests generating *.cat). In the case of the iconv test test-iconvconfig, output is redirected where it wasn't before. In various places the "generated" variable is updated to reflect the revised test names; in iconvdata/Makefile a typo (mmtrace-tst-loading) is also fixed. resolv/Makefile sets both "generate" (which appears unused) and "generated". Bitrot in the settings of these variables could no doubt be fixed so that "make clean" after build and testing leaves results the same as after configure (and indeed the tests-special / xtests-special variables could be used to simplify things, by removing those files automatically rather than listing them manually in these variables), and "make distclean" leaves an empty build directory, but right now it appears various files don't get deleted. I think they are liable to continue to bitrot in the absence of routine testing that these targets actually work, given that building in the source directory isn't supported and that was the main use of such makefile targets. Tested x86_64. * elf/Makefile (tests-special): Rename tests to end with .out. ($(objpfx)noload-mem): Likewise. ($(objpfx)tst-leaks1-mem): Likewise. ($(objpfx)tst-leaks1-static-mem.out): Likewise. * iconv/Makefile (xtests-special): Change test-iconvconfig to $(objpfx)test-iconvconfig.out. (test-iconvconfig): Change to $(objpfx)test-iconvconfig.out. Use set -e inside subshell and redirect output to file. * iconvdata/Makefile (generated): Rename tests to end with .out. Correct type. (tests-special): Rename tests to end with .out. ($(objpfx)mtrace-tst-loading): Likewise. * intl/Makefile (generated): Likewise. (tests-special): Likewise. ($(objpfx)mtrace-tst-gettext): Likewise. * misc/Makefile (generated): Likewise. (tests-special): Likewise. ($(objpfx)tst-error1-mem): Likewise. * nptl/Makefile (tests-special): Likewise. ($(objpfx)tst-stack3-mem): Likewise. (generated): Likewise. * posix/Makefile (generated): Likewise. (tests-special): Likewise. (xtests-special): Likewise. ($(objpfx)tst-fnmatch-mem): Likewise. ($(objpfx)bug-regex2-mem): Likewise. ($(objpfx)bug-regex14-mem): Likewise. ($(objpfx)bug-regex21-mem): Likewise. ($(objpfx)bug-regex31-mem): Likewise. ($(objpfx)tst-vfork3-mem): Likewise. ($(objpfx)tst-rxspencer-no-utf8-mem): Likewise. ($(objpfx)tst-pcre-mem): Likewise. ($(objpfx)tst-boost-mem): Likewise. ($(objpfx)bug-ga2-mem): Likewise. ($(objpfx)bug-glob2-mem): Likewise. * resolv/Makefile (generate): Likewise. (tests-special): Likewise. (xtests-special): Likewise. (generated): Likewise. ($(objpfx)mtrace-tst-leaks): Likewise. ($(objpfx)mtrace-tst-leaks2): Likewise. localedata: * Makefile (generated): Rename tests to end with .out. (tests-special): Likewise. ($(objpfx)mtrace-tst-leaks): Likewise.
2014-03-06Enumerate tests with special rules in tests-special variable.Joseph Myers1-36/+22
This patch is a revised and updated version of <https://sourceware.org/ml/libc-alpha/2014-01/msg00196.html>. In order to generate overall summaries of the results of all tests in the glibc testsuite, we need to identify and concatenate the files with the results of individual tests. Tomas Dohnalek's patch used $(common-objpfx)*/*.test-result for this. However, the normal glibc approach is explicit enumeration of the expected set of files with a given property, rather than all files matching some pattern like that. Furthermore, we would like to be able to mark tests as UNRESOLVED if the file with their results is for some reason missing, and in future we would like to be able to mark tests as UNSUPPORTED if they are disabled for a particular configuration (rather than simply having them missing from the list of tests as at present). Such handling of tests that were not run or did not record results requires an explicit enumeration of tests. For the tests following the default makefile rules, $(tests) (and $(xtests)) provides such an enumeration. Others, however, are added directly as dependencies of the "tests" and "xtests" makefile targets. This patch changes the makefiles to put them in variables tests-special and xtests-special, with appropriate dependencies on the tests listed there then being added centrally. Those variables are used in Rules and so need to be set before Rules is included in a subdirectory makefile, which is often earlier in the makefile than the dependencies were present before. We previously discussed the question of where to include Rules; see the question at <https://sourceware.org/ml/libc-alpha/2012-11/msg00798.html>, and a discussion in <https://sourceware.org/ml/libc-alpha/2013-01/msg00337.html> of why Rules is included early rather than late in subdirectory makefiles. It was necessary to avoid an indirection through the check-abi target and get the check-abi-* targets for individual libraries into the tests-special variable. The intl/ test $(objpfx)tst-gettext.out, previously built only because of dependencies from other tests, was also added to tests-special for the same reason. The entries in tests-special are the full makefile targets, complete with $(objpfx) and .out. If a future change causes tests to be named consistently with a .out suffix, this can be changed to include just the path relative to $(objpfx), without .out. Tested x86_64, including that the same set of files is generated in the build directory by a build and testsuite run both before and after the patch (except for changes to the elf/tst-null-argv.debug.out.<number> file name), and a build with run-built-tests=no to verify there aren't any more obvious instances of the issue Marcus Shawcroft reported with a previous version in <https://sourceware.org/ml/libc-alpha/2014-01/msg00462.html>. * Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. (tests): Depend on $(tests-special). * Makerules (check-abi-list): New variable. (check-abi): Depend on $(check-abi-list). [$(subdir) = elf] (tests-special): Add $(objpfx)check-abi-libc.out. [$(build-shared) = yes && subdir] (tests-special): Add $(check-abi-list). [$(build-shared) = yes && subdir] (tests): Do not depend on check-abi. * Rules (tests): Depend on $(tests-special). (xtests): Depend on $(xtests-special). * catgets/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * conform/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * elf/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * grp/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * iconv/Makefile (xtests): Change dependencies to .... (xtests-special): ... additions to this variable. * iconvdata/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * intl/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. Also add $(objpfx)tst-gettext.out. * io/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * libio/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * malloc/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * misc/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * nptl/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * nptl_db/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * posix/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. (xtests): Change dependencies to .... (xtests-special): ... additions to this variable. * resolv/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. (xtests): Change dependencies to .... (xtests-special): ... additions to this variable. * stdio-common/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. (do-tst-unbputc): Remove target. (do-tst-printf): Likewise. * stdlib/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * string/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. * sysdeps/x86/Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable. localedata: * Makefile (tests): Change dependencies to .... (tests-special): ... additions to this variable.
2014-02-28Promote do_lookup_x:check_match to a full function.Carlos O'Donell1-104/+122
While it may be argued that nested functions make the resulting code easier to read, or worse to read the following two bugs make it difficult to debug: Bug 8300 - no local symbol information within nested or nesting procedures https://sourceware.org/bugzilla/show_bug.cgi?id=8300 Bug 53927 - wrong value for DW_AT_static_link http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53927 Until these are fixed I've made check_match a full function. After they are fixed we can resume arguing about the merits of nested functions on readability and maintenance.
2014-02-28Fix fallout from Joseph's untested Makeconfig change.Roland McGrath1-3/+3
2014-02-25BZ #16613: Support TLS in audit libraries.Carlos O'Donell6-2/+71
This commit fixes a bug where the dynamic loader would crash when loading audit libraries, via LD_AUDIT, where those libraries used TLS. The dynamic loader was not considering that the audit libraries would use TLS and failed to bump the TLS generation counter leaving TLS usage inconsistent after loading the audit libraries. https://sourceware.org/ml/libc-alpha/2014-02/msg00569.html
2014-02-25Fix race conditions in pldd that may leave the process stopped after detachingAndreas Schwab1-0/+25
Fixes bug 15804
2014-02-21Generate .test-result files for tests with special rules.Joseph Myers1-21/+42
This patch, an updated version of <https://sourceware.org/ml/libc-alpha/2014-01/msg00194.html> now proposed for inclusion in glibc, extends the generation of PASS and FAIL status in .test-result files for individual tests to cover tests with their own custom makefile rules. This is just adding $(evaluate-test) calls to all such rules, since tests with multiple commands were previously split into separate tests. Note that the tests the makefiles expect to fail (posix/annexc and conformtest) currently get FAIL listed in the .test-result file, rather than XFAIL; a subsequent patch will introduce a better XFAIL mechanism. Tested x86_64. * Makefile ($(objpfx)c++-types-check.out): Use $(evaluate-test). ($(objpfx)check-local-headers.out): Likewise. ($(objpfx)begin-end-check.out): Likewise. * Makerules (check-abi-%.out): Likewise. * catgets/Makefile ($(objpfx)test1.cat): Likewise. ($(objpfx)test2.cat): Likewise. ($(objpfx)de/libc.cat): Likewise. ($(objpfx)test-gencat.out): Likewise. * conform/Makefile ($(objpfx)run-conformtest.out): Likewise. * elf/Makefile ($(objpfx)order-cmp.out): Likewise. ($(objpfx)noload-mem): Likewise. ($(objpfx)tst-pathopt.out): Likewise. ($(objpfx)tst-rtld-load-self.out): Likewise. ($(objpfx)tst-array1-cmp.out): Likewise. ($(objpfx)tst-array1-static-cmp.out): Likewise. ($(objpfx)tst-array2-cmp.out): Likewise. ($(objpfx)tst-array3-cmp.out): Likewise. ($(objpfx)tst-array4-cmp.out): Likewise. ($(objpfx)tst-array5-cmp.out): Likewise. ($(objpfx)tst-array5-static-cmp.out): Likewise. ($(objpfx)check-textrel.out): Likewise. ($(objpfx)check-execstack.out): Likewise. ($(objpfx)check-localplt.out): Likewise. ($(objpfx)order2-cmp.out): Likewise. ($(objpfx)tst-leaks1-mem): Likewise. ($(objpfx)tst-leaks1-static-mem): Likewise. ($(objpfx)tst-initorder-cmp.out): Likewise. ($(objpfx)tst-initorder2-cmp.out): Likewise. ($(objpfx)tst-unused-dep.out): Likewise. ($(objpfx)tst-unused-dep-cmp.out): Likewise. * grp/Makefile ($(objpfx)tst_fgetgrent.out): Likewise. * iconv/Makefile (test-iconvconfig): Likewise. * iconvdata/Makefile ($(objpfx)mtrace-tst-loading): Likewise. ($(objpfx)iconv-test.out): Likewise. ($(objpfx)tst-tables.out): Likewise. * intl/Makefile ($(objpfx)mtrace-tst-gettext): Likewise. ($(objpfx)tst-gettext.out): Likewise. ($(objpfx)tst-translit.out): Likewise. ($(objpfx)tst-gettext2.out): Likewise. ($(objpfx)tst-gettext4.out): Likewise. ($(objpfx)tst-gettext6.out): Likewise. * io/Makefile ($(objpfx)ftwtest.out): Likewise. * libio/Makefile ($(objpfx)test-freopen.out): Likewise. ($(objpfx)tst-fopenloc-cmp.out): Likewise. ($(objpfx)tst-fopenloc-mem.out): Likewise. * malloc/Makefile ($(objpfx)tst-mtrace.out): Likewise. * misc/Makefile ($(objpfx)tst-error1-mem): Likewise. * posix/Makefile ($(objpfx)globtest.out): Likewise. ($(objpfx)wordexp-tst.out): Likewise. ($(objpfx)annexc.out): Likewise. ($(objpfx)tst-fnmatch-mem): Likewise. ($(objpfx)bug-regex2-mem): Likewise. ($(objpfx)bug-regex14-mem): Likewise. ($(objpfx)bug-regex21-mem): Likewise. ($(objpfx)bug-regex31-mem): Likewise. ($(objpfx)tst-vfork3-mem): Likewise. ($(objpfx)tst-rxspencer-no-utf8-mem): Likewise. ($(objpfx)tst-pcre-mem): Likewise. ($(objpfx)tst-boost-mem): Likewise. ($(objpfx)tst-getconf.out): Likewise. ($(objpfx)bug-ga2-mem): Likewise. ($(objpfx)bug-glob2-mem): Likewise. * resolv/Makefile ($(objpfx)mtrace-tst-leaks): Likewise. ($(objpfx)mtrace-tst-leaks2): Likewise. * stdio-common/Makefile ($(objpfx)tst-unbputc.out): Likewise. ($(objpfx)tst-printf.out): Likewise. ($(objpfx)tst-setvbuf1.out): Likewise. ($(objpfx)tst-setvbuf1-cmp.out): Likewise. * stdlib/Makefile ($(objpfx)isomac.out): Likewise. ($(objpfx)tst-fmtmsg.out): Likewise. * string/Makefile ($(objpfx)tst-svc-cmp.out): Likewise. * sysdeps/x86/Makefile ($(objpfx)tst-xmmymm.out): Likewise. localedata: * Makefile ($(objpfx)sort-test.out): Use $(evaluate-test). ($(objpfx)tst-fmon.out): Likewise. ($(objpfx)tst-numeric.out): Likewise. ($(objpfx)tst-locale.out): Likewise. ($(objpfx)tst-rpmatch.out): Likewise. ($(objpfx)tst-trans.out): Likewise. ($(objpfx)tst-mbswcs.out): Likewise. ($(objpfx)tst-ctype.out): Likewise. ($(objpfx)tst-wctype.out): Likewise. ($(objpfx)tst-langinfo.out): Likewise. ($(objpfx)mtrace-tst-leaks): Likewise. nptl: * Makefile ($(objpfx)tst-stack3-mem): Use $(evaluate-test). ($(objpfx)tst-tls6.out): Likewise. ($(objpfx)tst-cleanup0.out): Likewise. ($(objpfx)tst-cleanup0-cmp.out): Likewise. ($(objpfx)tst-cancel-wrappers.out): Likewise. ($(objpfx)tst-oddstacklimit.out): Likewise. nptl_db: * Makefile ($(objpfx)db-symbols.out): Use $(evaluate-test).
2014-02-14Split up rules for tests that compare output with baselines.Joseph Myers1-42/+49
This patch splits makefile rules that generate a file then run cmp to check the contents of that file into separate rules to generate and compare the file. This simplifies making those tests generate PASS / FAIL results, by removing the need to insert && between commands in the test so that a $(evaluate-test) call is reached. It also avoids the oddity of the .out file being an intermediate file rather than the final result generated, as noted for some of these tests in <https://sourceware.org/ml/libc-alpha/2012-10/msg00894.html>. In many cases, the rule to run the program was no longer needed because the default rules for running test programs on the host to generate a .out file sufficed. (I'm not asserting the commands run after this patch are *exactly* the same as before, simply that the rules did nothing special that appeared deliberate or relevant to anything about what the tests were testing. In cases where the rules redirected stderr as well as stdout, I left the existing rule's redirection in place to avoid changing what gets compared with the expected results.) It's clear there is a lot in common between the various -cmp.out rules and it might be possible in future to refactor them into more generic support for the case of comparing test output against a baseline. (Some baselines are *.exp, some *.expect, some directly embedded in the makefiles, and nptl/tst-cleanupx0.expect appears unused.) Tested x86_64. * elf/Makefile ($(objpfx)order.out): Remove rule. [$(run-built-tests) = yes] (tests): Depend on $(objpfx)order-cmp.out. ($(objpfx)order-cmp.out): New rule. [$(run-built-tests) = yes] (tests): Depend on $(objpfx)tst-array1-cmp.out, $(objpfx)tst-array1-static-cmp.out, $(objpfx)tst-array2-cmp.out, $(objpfx)tst-array3-cmp.out, $(objpfx)tst-array4-cmp.out, $(objpfx)tst-array5-cmp.out and $(objpfx)tst-array5-static-cmp.out. ($(objpfx)tst-array1.out): Remove rule. ($(objpfx)tst-array1-cmp.out): New rule. ($(objpfx)tst-array1-static.out): Remove rule. ($(objpfx)tst-array1-static-cmp.out): New rule. ($(objpfx)tst-array2.out): Remove rule. ($(objpfx)tst-array2-cmp.out): New rule. ($(objpfx)tst-array3.out): Remove rule. ($(objpfx)tst-array3-cmp.out): New rule. ($(objpfx)tst-array4.out): Remove rule. ($(objpfx)tst-array4-cmp.out): New rule. ($(objpfx)tst-array5.out): Remove rule. ($(objpfx)tst-array5-cmp.out): New rule. ($(objpfx)tst-array5-static.out): Remove rule. ($(objpfx)tst-array5-static-cmp.out): New rule. [$(run-built-tests) = yes] (tests): Depend on $(objpfx)order2-cmp.out. ($(objpfx)order2.out): Remove rule. ($(objpfx)order2-cmp.out): New rule. ($(objpfx)tst-initorder.out): Remove rule. [$(run-built-tests) = yes] (tests): Depend on $(objpfx)tst-initorder-cmp.out. ($(objpfx)tst-initorder-cmp.out): New rule. ($(objpfx)tst-initorder2.out): Remove rule. [$(run-built-tests) = yes] (tests): Depend on $(objpfx)tst-initorder2-cmp.out. ($(objpfx)tst-initorder2-cmp.out): New rule. [$(run-built-tests) = yes] (tests): Depend on $(objpfx)tst-unused-dep-cmp.out. ($(objpfx)tst-unused-dep-cmp.out): Do not run cmp. ($(objpfx)tst-unused-dep-cmp.out): New rule. * stdio-common/Makefile [$(run-built-tests) = yes] (tests): Depend on $(objpfx)tst-setvbuf1-cmp.out. ($(objpfx)tst-setvbuf1.out): Do not run cmp. ($(objpfx)tst-setvbuf1-cmp.out): New rule. * string/Makefile [$(run-built-tests) = yes] (tests): Depend $(objpfx)tst-svc-cmp.out instead of $(objpfx)tst-svc.out. ($(objpfx)tst-svc.out): Remove rule. ($(objpfx)tst-svc-cmp.out): New rule. nptl: * Makefile ($(objpfx)tst-cleanup0.out): Do not run cmp. [$(run-built-tests) = yes] (tests): Depend on $(objpfx)tst-cleanup0-cmp.out. ($(objpfx)tst-cleanup0-cmp.out): New rule.
2014-02-12Make ABI tests generate .out files.Joseph Myers1-1/+1
If you rerun "make check" in a tree where some tests have already been run, it will rerun ABI tests because those do not create an output file. This patch changes those tests to create .out files so they only get rerun if the dependencies (on the ABI baselines and the generated .symlist files) indicate they should be rerun. Tested x86_64. * Makerules (check-abi-%): Change target to $(objpfx)check-abi-%.out. (check-abi target): Update dependencies. (check-abi-pattern variable): Redirect output of diff to $@. (check-abi variable): Likewise. * elf/Makefile (check-abi): Update dependencies.
2014-02-11Merge MIPS dl-lookup.c into generic file.Joseph Myers1-0/+8
MIPS has its own version of dl-lookup.c to deal with differences between undefined symbol semantics in the PIC and non-PIC ABIs. This is often liable to get out of date with respect to the generic file (for example, the recent __builtin_expect changes didn't cover ports, and it's not obvious to anyone changing dl-lookup.c that there would be architecture-specific versions). This patch adds a macro that dl-machine.h can define that is used in the appropriate place in dl-lookup.c, so that MIPS no longer needs its own version of that file. Tested for mips64 that the only changes to disassembly of installed shared libraries appear to be ld.so changes attributable to different line numbers and paths in assertions. * elf/dl-lookup.c (ELF_MACHINE_SYM_NO_MATCH): Define if not already defined. (do_lookup_x): Use ELF_MACHINE_SYM_NO_MATCH. * sysdeps/mips/dl-lookup.c: Remove. * sysdeps/mips/dl-machine.h (ELF_MACHINE_SYM_NO_MATCH): New macro.
2014-02-10Use glibc_likely instead __builtin_expect.Ondřej Bílka23-133/+133
2014-02-06Revert "Patch 3/4 of the effort to make TLS access async-signal-safe."Allan McRae2-13/+0
This reverts commit 35e8f7ab94c910659de9d507aa0f3e1f8973d914.
2014-02-06Revert "Patch 2/4 of the effort to make TLS access async-signal-safe."Allan McRae2-160/+16
This reverts commit 1f33d36a8a9e78c81bed59b47f260723f56bb7e6. Conflicts: elf/dl-misc.c Also reverts the follow commits that were bug fixes to new code introduced in the above commit: 063b2acbce83549df82ab30f5af573f1b9c4bd19 b627fdd58554bc36bd344dc40a8787c4b7a9cc46 e81c64bba13d2d8b2a4e53254a82cc80f27c8497
2014-02-06Revert "Async-signal safe TLS."Allan McRae3-114/+39
This reverts commit 7f507ee17aee720fa423fa38502bc3caa0dd03d7. Conflicts: ChangeLog nptl/tst-tls7.c nptl/tst-tls7mod.c
2014-01-31[BZ #16046] Static dlopen correction fallout fixes.Maciej W. Rozycki4-49/+8
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.
2014-01-08Obvious comment typo fix ("openened") in elf/dl-load.c.Brooks Moses1-1/+1
2014-01-03Async-signal safe TLS.Andrew Hunter3-39/+114
ChangeLog: 2014-01-03 Andrew Hunter <ahh@google.com> * elf/dl-open.c (): New comment. * elf/dl-reloc.c (_dl_try_allocate_static_tls): Use atomic_compare_and_exchange_bool_acq (_dl_allocate_static_tls): Block signals. * elf/dl-tls.c (allocate_and_init): Return void. (_dl_update_slotinfo): Block signals, use atomic update. nptl/ChangeLog: 2014-01-03 Andrew Hunter <ahh@google.com> * nptl/Makefile (tst-tls7): New test. * nptl/tst-tls7.c: New file. * nptl/tst-tls7mod.c: New file. * nptl/allocatestack.c (init_one_static_tls): Use atomic barrier.
2014-01-01Update remaining copyright datesAllan McRae5-5/+5
Update copyright years that are not handled by scripts/update-copyright.
2014-01-01Update copyright notices with scripts/update-copyrightsAllan McRae80-80/+80
2013-12-19Fix white space as well.Paul Pluzhnikov1-1/+1
2013-12-19Fix incorrect power of 2 check in last commit.Paul Pluzhnikov1-1/+1
2013-12-19Cleanup compile warnings.Paul Pluzhnikov1-5/+15
2013-12-19 Paul Pluzhnikov <ppluzhnikov@google.com> * elf/dl-misc.c (ptr_to_signal_safe_allocator_header): New function. (__signal_safe_memalign, __signal_safe_free): Use it. (__signal_safe_realloc): Likewise.
2013-12-18Patch 2/4 of the effort to make TLS access async-signal-safe.Paul Pluzhnikov2-16/+150
Add a signal-safe malloc replacement. 2013-12-18 Andrew Hunter <ahh@google.com> * sysdeps/generic/ldsodefs.h (__signal_safe_memalign): New prototype. (__signal_safe_malloc, __signal_safe_free): Likewise. (__signal_safe_realloc, __signal_safe_calloc): Likewise. * elf/dl-misc.c (__signal_safe_allocator_header): New struct. (__signal_safe_memalign, __signal_safe_malloc): New function. (__signal_safe_free, __signal_safe_realloc): Likewise. (__signal_safe_calloc): Likewise. * elf/dl-tls.c (allocate_dtv, _dl_clear_dtv): Call signal-safe functions. (_dl_deallocate_tls, _dl_update_slotinfo): Likewise.
2013-12-18Patch 3/4 of the effort to make TLS access async-signal-safe.Paul Pluzhnikov2-0/+13
Factor out _dl_clear_dtv. 2013-12-18 Andrew Hunter <ahh@google.com> * elf/Versions (ld): Add _dl_clear_dtv. * sysdeps/generic/ldsodefs.h (_dl_clear_dtv): New prototype. * elf/dl-tls.c (_dl_clear_dtv): New function. * nptl/allocatestack.c (get_cached_stack): Call _dl_clear_dtv.
2013-12-18Add error reporting (via errno) to getauxval().Brooks Moses1-2/+26
[BZ 15846] As discussed in the recent thread on my $EXEC_ORIGIN patch and in BZ 15846, getauxval() presently has no unambiguous way of reporting an error condition. It currently returns zero on error, but this may also be a valid result for some auxv entries. As there is no clear invalid result for all current and future auxv entries, this patch sets errno (following a suggestion in the BZ entry). This version of the patch also adds documentation and tests for the value-not-found conditions in getauxval().
2013-12-16Clean up setjmp use in dl-error.c.Roland McGrath1-32/+40
2013-12-05Revert wrong commit.Adhemerval Zanella1-2/+2
2013-12-05Fix elf/get-dynamic-info.h for ATAdhemerval Zanella1-2/+2
2013-12-04PowerPC64 ELFv2 ABI 3/6: PLT local entry point optimizationUlrich Weigand1-0/+11
This is a follow-on to the previous patch to support the ELFv2 ABI in the dynamic loader, split off into its own patch since it is just an optional optimization. In the ELFv2 ABI, most functions define both a global and a local entry point; the local entry requires r2 to be already set up by the caller to point to the callee's TOC; while the global entry does not require the caller to know about the callee's TOC, but it needs to set up r12 to the callee's entry point address. Now, when setting up a PLT slot, the dynamic linker will usually need to enter the target function's global entry point. However, if the linker can prove that the target function is in the same DSO as the PLT slot itself, and the whole DSO only uses a single TOC (which the linker will let ld.so know via a DT_PPC64_OPT entry), then it is possible to actually enter the local entry point address into the PLT slot, for a slight improvement in performance. Note that this uncovered a problem on the first call via _dl_runtime_resolve, because that routine neglected to restore the caller's TOC before calling the target function for the first time, since it assumed that function would always reload its own TOC anyway ...
2013-12-04PowerPC64 ELFv2 ABI 2/6: Remove function descriptorsUlrich Weigand1-0/+6
This patch adds support for the ELFv2 ABI feature to remove function descriptors. See this GCC patch for in-depth discussion: http://gcc.gnu.org/ml/gcc-patches/2013-11/msg01141.html This mostly involves two types of changes: updating assembler source files to the new logic, and updating the dynamic loader. After the refactoring in the previous patch, most of the assembler source changes can be handled simply by providing ELFv2 versions of the macros in sysdep.h. One somewhat non-obvious change is in __GI__setjmp: this used to "fall through" to the immediately following __setjmp ENTRY point. This is no longer safe in the ELFv2 since ENTRY defines both a global and a local entry point, and you cannot simply fall through to a global entry point as it requires r12 to be set up. Also, makecontext needs to be updated to set up registers according to the new ABI for calling into the context's start routine. The dynamic linker changes mostly consist of removing special code to handle function descriptors. We also need to support the new PLT and glink format used by the the ELFv2 linker, see: https://sourceware.org/ml/binutils/2013-10/msg00376.html In addition, the dynamic linker now verifies that the dynamic libraries it loads match its own ABI. The hack in VDSO_IFUNC_RET to "synthesize" a function descriptor for vDSO routines is also no longer necessary for ELFv2.
2013-12-04PowerPC64: Report overflow on @h and @ha relocationsAlan Modra1-0/+11
This patch updates glibc in accordance with the binutils patch checked in here: https://sourceware.org/ml/binutils/2013-10/msg00372.html This changes the various R_PPC64_..._HI and _HA relocations to report 32-bit overflows. The motivation is that existing uses of @h / @ha are to build up 32-bit offsets (for the "medium model" TOC access that GCC now defaults to), and we'd really like to see failures at link / load time rather than silent truncations. For those rare cases where a modifier is needed to build up a 64-bit constant, new relocations _HIGH / _HIGHA are supported. The patch also fixes a bug in overflow checking for the R_PPC64_ADDR30 and R_PPC64_ADDR32 relocations.
2013-12-02Return fixed version of breaking of RPATH when $ORIGIN contains colonsOndřej Bílka1-10/+16
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