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* scripts/glibcelf.py: Properly report <elf.h> parsing failuresFlorian Weimer2022-11-031-1/+1
| | | | | | | | | | | | | | | | | Without this change, parse failures result in an exception: Traceback (most recent call last): File "tst-glibcelf.py", line 23, in <module> import glibcelf File "/path/to/git/scripts/glibcelf.py", line 226, in <module> _elf_h = _parse_elf_h() File "/path/to/git/scripts/glibcelf.py", line 221, in _parse_elf_h result = glibcpp.macro_eval(glibcpp.macro_definitions(tokens), reporter) File "/path/to/git/scripts/glibcpp.py", line 379, in macro_eval reporter.error(md.line, 'macro {} redefined'.format(md.name)) File "/path/to/git/scripts/glibcelf.py", line 214, in error errors += 1 UnboundLocalError: local variable 'errors' referenced before assignment
* scripts: Use bool in tunables initializerSzabolcs Nagy2022-10-281-1/+1
| | | | | | | The initializer for a tunable_t set the bool initialized flag to NULL. This causes a build failure when pointer to bool conversion warns. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* scripts/localplt.awk: Handle DT_JMPREL with empty PLT (for C-SKY)Florian Weimer2022-10-271-3/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On csky-linux-gnuabiv2, binutils 2.33 produces a DT_JMPREL entry for the dynamic loader if it does not contain any PLT relocations: Dynamic section at offset 0x1df48 contains 19 entries: Tag Type Name/Value 0x0000000e (SONAME) Library soname: [ld-linux-cskyv2-hf.so.1] 0x00000004 (HASH) 0xd4 0x6ffffef5 (GNU_HASH) 0x1a8 0x00000005 (STRTAB) 0x4ac 0x00000006 (SYMTAB) 0x28c 0x0000000a (STRSZ) 527 (bytes) 0x0000000b (SYMENT) 16 (bytes) 0x00000003 (PLTGOT) 0x1f000 0x00000002 (PLTRELSZ) 0 (bytes) 0x00000014 (PLTREL) RELA 0x00000017 (JMPREL) 0xaa4 0x00000007 (RELA) 0x75c 0x00000008 (RELASZ) 840 (bytes) 0x00000009 (RELAENT) 12 (bytes) 0x6ffffffc (VERDEF) 0x700 0x6ffffffd (VERDEFNUM) 3 0x6ffffff0 (VERSYM) 0x6bc 0x6ffffff9 (RELACOUNT) 68 0x00000000 (NULL) 0x0 This confuses the script: Unexpected output from check-localplt: …/elf/ld.so.jmprel: *** DT_JMPREL does not match any section's address This commit changes the script to record the DT_PLTRELSZ value and reject DT_JMPREL values not a section boundary only if DT_PLTRELSZ is present with a non-zero value. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* Use Linux 6.0 in build-many-glibcs.pyJoseph Myers2022-10-041-1/+1
| | | | | | | This patch makes build-many-glibcs.py use Linux 6.0. Tested with build-many-glibcs.py (host-libraries, compilers and glibcs builds).
* elf: Extract glibcelf constants from <elf.h>Florian Weimer2022-09-221-641/+375
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The need to maintain elf/elf.h and scripts/glibcelf.py in parallel results in a backporting hazard: they need to be kept in sync to avoid elf/tst-glibcelf consistency check failures. glibcelf (unlike tst-glibcelf) does not use the C implementation to extract constants. This applies the additional glibcpp syntax checks to <elf.h>. This changereplaces the types derived from Python enum types with custom types _TypedConstant, _IntConstant, and _FlagConstant. These types have fewer safeguards, but this also allows incremental construction and greater flexibility for grouping constants among the types. Architectures-specific named constants are now added as members into their superclasses (but value-based lookup is still restricted to generic constants only). Consequently, check_duplicates in elf/tst-glibcelf has been adjusted to accept differently-named constants of the same value if their subtypes are distinct. The ordering check for named constants has been dropped because they are no longer strictly ordered. Further test adjustments: Some of the type names are different. The new types do not support iteration (because it is unclear whether iteration should cover the all named values (including architecture-specific constants), or only the generic named values), so elf/tst-glibcelf now uses by_name explicit (to get all constants). PF_HP_SBP and PF_PARISC_SBP are now of distinct types (PfHP and PfPARISC), so they are how both present on the Python side. EM_NUM and PT_NUM are filtered (which was an oversight in the old conversion). The new version of glibcelf should also be compatible with earlier Python versions because it no longer depends on the enum module and its advanced features. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* scripts: Enhance glibcpp to do basic macro processingFlorian Weimer2022-09-221-0/+317
| | | | Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* scripts: Extract glibcpp.py from check-obsolete-constructs.pyFlorian Weimer2022-09-222-184/+217
| | | | | | The C tokenizer is useful separately. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* scripts/dso-ordering-test.py: Generate program run-time dependenciesFlorian Weimer2022-09-061-7/+6
| | | | | | | | | The main program needs to depend on all shared objects, even objects that have link-time dependencies among shared objects. Filtering out shared objects that already have an link-time dependencies is not necessary here; make will do this automatically. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* scripts/build-many-glibcs.py: Use https:// for sourceware.org Git clonesFlorian Weimer2022-09-051-3/+3
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* LoongArch: Add soft float support.caiyinyu2022-09-011-0/+4
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* Revert "Detect ld.so and libc.so version inconsistency during startup"Florian Weimer2022-08-251-89/+0
| | | | | | | | | | | | | | | | This reverts commit 6f85dbf102ad7982409ba0fe96886caeb6389fef. Once this change hits the release branches, it will require relinking of all statically linked applications before static dlopen works again, for the majority of updates on release branches: The NEWS file is regularly updated with bug references, so the __libc_early_init suffix changes, and static dlopen cannot find the function anymore. While this ABI check is still technically correct (we do require rebuilding & relinking after glibc updates to keep static dlopen working), it is too drastic for stable release branches. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Detect ld.so and libc.so version inconsistency during startupFlorian Weimer2022-08-241-0/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The files NEWS, include/link.h, and sysdeps/generic/ldsodefs.h contribute to the version fingerprint used for detection. The fingerprint can be further refined using the --with-extra-version-id configure argument. _dl_call_libc_early_init is replaced with _dl_lookup_libc_early_init. The new function is used store a pointer to libc.so's __libc_early_init function in the libc_map_early_init member of the ld.so namespace structure. This function pointer can then be called directly, so the separate invocation function is no longer needed. The versioned symbol lookup needs the symbol versioning data structures, so the initialization of libc_map and libc_map_early_init is now done from _dl_check_map_versions, after this information becomes available. (_dl_map_object_from_fd does not set this up in time, so the initialization code had to be moved from there.) This means that the separate initialization code can be removed from dl_main because _dl_check_map_versions covers all maps, including the initial executable loaded by the kernel. The lookup still happens before relocation and the invocation of IFUNC resolvers, so IFUNC resolvers are protected from ABI mismatch. The __libc_early_init function pointer is not protected because so little code runs between the pointer write and the invocation (only dynamic linker code and IFUNC resolvers). Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* scripts/glibcelf.py: Add hashing supportFlorian Weimer2022-08-231-0/+19
| | | | | | | | ELF and GNU hashes can now be computed using the elf_hash and gnu_hash functions. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* Use binutils 2.39 branch in build-many-glibcs.pyJoseph Myers2022-08-181-1/+1
| | | | | | | | | This patch makes build-many-glibcs.py use binutils 2.39 branch. Tested with build-many-glibcs.py (compilers and glibcs builds). Note: binutils 2.39 shows the same failures for i686-linux-gnu-no-pie, x86_64-linux-gnu-no-pie and x86_64-linux-gnu-x32-no-pie building the glibc testsuite as binutils mainline does.
* glibcextract.py: Add compile_c_snippetAdhemerval Zanella2022-08-121-0/+19
| | | | | | | It might be used on tests to check if a snippet build with the provided compiler and flags. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* Use Linux 5.19 in build-many-glibcs.pyJoseph Myers2022-08-021-1/+1
| | | | | | | This patch makes build-many-glibcs.py use Linux 5.19. Tested with build-many-glibcs.py (host-libraries, compilers and glibcs builds).
* LoongArch: Update build-many-glibcs.py for the LoongArch Port.caiyinyu2022-07-261-0/+5
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* LoongArch: Add relocations and ELF flags to elf.h and scripts/glibcelf.pycaiyinyu2022-07-261-1/+2
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* Update scripts/config.* files from upstream GNU config versionAdhemerval Zanella2022-07-192-878/+1252
| | | | | | | | | This patch updates various miscellaneous files from their upstream sources (version 2022-05-25). It is required for loongarch support. Checked on aarch64-linux-gnu.
* Use GCC 12 branch in build-many-glibcs.pyJoseph Myers2022-07-041-1/+1
| | | | | | | This patch makes build-many-glibcs.py use GCC 12 branch by default. Tested with build-many-glibcs.py (host-libraries, compilers and glibcs builds).
* scripts/glibcelf.py: Add PT_AARCH64_MEMTAG_MTE constantAdhemerval Zanella2022-06-061-0/+4
| | | | | | | It was added in commit 603e5c8ba7257483c162cabb06eb6f79096429b6. This caused the elf/tst-glibcelf consistency check to fail. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* grep: egrep -> grep -E, fgrep -> grep -FSam James2022-06-052-4/+4
| | | | | | | | | | | Newer versions of GNU grep (after grep 3.7, not inclusive) will warn on 'egrep' and 'fgrep' invocations. Convert usages within the tree to their expanded non-aliased counterparts to avoid irritating warnings during ./configure and the test suite. Signed-off-by: Sam James <sam@gentoo.org> Reviewed-by: Fangrui Song <maskray@google.com>
* Use Linux 5.18 in build-many-glibcs.pyJoseph Myers2022-05-241-1/+1
| | | | | | | This patch makes build-many-glibcs.py use Linux 5.18. Tested with build-many-glibcs.py (host-libraries, compilers and glibcs builds).
* scripts/glibcelf.py: Add *T_RISCV_* constantsFlorian Weimer2022-05-161-0/+12
| | | | | | | | | SHT_RISCV_ATTRIBUTES, PT_RISCV_ATTRIBUTES, DT_RISCV_VARIANT_CC were added in commit 0b6c6750732483b4d59c2fcb45484079cd84157d ("Update RISC-V specific ELF definitions"). This caused the elf/tst-glibcelf consistency check to fail. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* csu: Implement and use _dl_early_allocate during static startupFlorian Weimer2022-05-161-7/+27
| | | | | | | | | | | This implements mmap fallback for a brk failure during TLS allocation. scripts/tls-elf-edit.py is updated to support the new patching method. The script no longer requires that in the input object is of ET_DYN type. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* elf: Fix DFS sorting algorithm for LD_TRACE_LOADED_OBJECTS with missing ↵Adhemerval Zanella2022-04-271-0/+108
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | libraries (BZ #28868) On _dl_map_object the underlying file is not opened in trace mode (in other cases where the underlying file can't be opened, _dl_map_object quits with an error). If there any missing libraries being processed, they will not be considered on final nlist size passed on _dl_sort_maps later in the function. And it is then used by _dl_sort_maps_dfs on the stack allocated working maps: 222 /* Array to hold RPO sorting results, before we copy back to maps[]. */ 223 struct link_map *rpo[nmaps]; 224 225 /* The 'head' position during each DFS iteration. Note that we start at 226 one past the last element due to first-decrement-then-store (see the 227 bottom of above dfs_traversal() routine). */ 228 struct link_map **rpo_head = &rpo[nmaps]; However while transversing the 'l_initfini' on dfs_traversal it will still consider the l_faked maps and thus update rpo more times than the allocated working 'rpo', overflowing the stack object. As suggested in bugzilla, one option would be to avoid sorting the maps for trace mode. However I think ignoring l_faked object does make sense (there is one less constraint to call the sorting function), it allows a slight less stack usage for trace, and it is slight simpler solution. The tests does trigger the stack overflow, however I tried to make it more generic to check different scenarios or missing objects. Checked on x86_64-linux-gnu. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* Add GLIBC_ABI_DT_RELR for DT_RELR supportH.J. Lu2022-04-262-1/+8
| | | | | | | | | | | | | | | | | | | | The EI_ABIVERSION field of the ELF header in executables and shared libraries can be bumped to indicate the minimum ABI requirement on the dynamic linker. However, EI_ABIVERSION in executables isn't checked by the Linux kernel ELF loader nor the existing dynamic linker. Executables will crash mysteriously if the dynamic linker doesn't support the ABI features required by the EI_ABIVERSION field. The dynamic linker should be changed to check EI_ABIVERSION in executables. Add a glibc version, GLIBC_ABI_DT_RELR, to indicate DT_RELR support so that the existing dynamic linkers will issue an error on executables with GLIBC_ABI_DT_RELR dependency. When there is a DT_VERNEED entry with libc.so on DT_NEEDED, issue an error if there is a DT_RELR entry without GLIBC_ABI_DT_RELR dependency. Support __placeholder_only_for_empty_version_map as the placeholder symbol used only for empty version map to generate GLIBC_ABI_DT_RELR without any symbols.
* elf: Define DT_RELR related macros and typesH.J. Lu2022-04-261-0/+4
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* scripts/glibcelf.py: Mark as UNSUPPORTED on Python 3.5 and earlierFlorian Weimer2022-04-251-0/+6
| | | | | enum.IntFlag and enum.EnumMeta._missing_ support are not part of earlier Python versions.
* scripts: Add glibcelf.py moduleFlorian Weimer2022-04-221-0/+1135
| | | | | | | | | | | | | | | | Hopefully, this will lead to tests that are easier to maintain. The current approach of parsing readelf -W output using regular expressions is not necessarily easier than parsing the ELF data directly. This module is still somewhat incomplete (e.g., coverage of relocation types and versioning information is missing), but it is sufficient to perform basic symbol analysis or program header analysis. The EM_* mapping for architecture-specific constant classes (e.g., SttX86_64) is not yet implemented. The classes are defined for the benefit of elf/tst-glibcelf.py. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* Use Linux 5.17 in build-many-glibcs.pyJoseph Myers2022-03-221-1/+1
| | | | | | | This patch makes build-many-glibcs.py use Linux 5.17. Tested with build-many-glibcs.py (host-libraries, compilers and glibcs builds).
* scripts/dso-ordering-test.py: Fix C&P error in * callrefs processingFlorian Weimer2022-03-181-3/+3
| | | | | | | The elf/dso-sort-tests-src subdirectory is not changed by this commit, so it seems that the cut-and-paste error was not material. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Use binutils 2.38 branch in build-many-glibcs.pyJoseph Myers2022-02-101-1/+1
| | | | | | This patch makes build-many-glibcs.py use binutils 2.38 branch. Tested with build-many-glibcs.py (compilers and glibcs builds).
* elf: Replace tst-p_alignmod1-editX with a python scriptAdhemerval Zanella2022-01-261-0/+206
| | | | | | | | This avoid the cross-compiling breakage when the test should not run ($(run-built-tests) equal to no). Checked on x86_64-linux-gnu and i686-linux-gnu as well with a cross compile to aarch64-linux-gnu and powerpc64-linux-gnu.
* Disable debuginfod in printer tests [BZ #28757]H.J. Lu2022-01-141-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | With gdb-11.1-6.fc35.x86_64, I got FAIL: nptl/test-cond-printers FAIL: nptl/test-condattr-printers FAIL: nptl/test-mutex-printers FAIL: nptl/test-mutexattr-printers FAIL: nptl/test-rwlock-printers FAIL: nptl/test-rwlockattr-printers $ cat nptl/test-condattr-printers.out Error: Response does not match the expected pattern. Command: start Expected pattern: main Response: Temporary breakpoint 1 at 0x11d5: file test-condattr-printers.c, line 43. Starting program: /export/build/gnu/tools-build/glibc-cet-gitlab/build-x86_64-linux/nptl/test-condattr-printers This GDB supports auto-downloading debuginfo from the following URLs: https://debuginfod.fedoraproject.org/ Enable debuginfod for this session? (y or [n]) Disable debuginfod to avoid GDB messages. This fixes BZ #28757. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* Use Linux 5.16 in build-many-glibcs.pyJoseph Myers2022-01-111-1/+1
| | | | | | | This patch makes build-many-glibcs.py use Linux 5.16. Tested with build-many-glibcs.py (host-libraries, compilers and glibcs builds).
* build-many-glibcs.py: add OpenRISC supportStafford Horne2022-01-051-0/+5
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Sync move-if-change from Gnulib, updating copyrightPaul Eggert2022-01-011-1/+1
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* Update copyright dates not handled by scripts/update-copyrights.Paul Eggert2022-01-011-1/+1
| | | | | | | | | | | | | | I've updated copyright dates in glibc for 2022. This is the patch for the changes not generated by scripts/update-copyrights and subsequent build / regeneration of generated files. As well as the usual annual updates, mainly dates in --version output (minus csu/version.c which previously had to be handled manually but is now successfully updated by update-copyrights), there is a small change to the copyright notice in NEWS which should let NEWS get updated automatically next year. Please remember to include 2022 in the dates for any new files added in future (which means updating any existing uncommitted patches you have that add new files to use the new copyright dates in them).
* Update copyright dates with scripts/update-copyrightsPaul Eggert2022-01-0130-30/+30
| | | | | | | | | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
* Fix The GNU ToolChain Authors copyright noticeSiddhesh Poyarekar2021-12-171-1/+1
| | | | | | | | | | | I (and maybe one or two others) added a (C) to the copyright notice regardless of the contribution checklist[1] not mentioning it. Fix all these instances so that the notice reads as "Copyright The GNU Toolchain Authors" across the source code. [1] https://sourceware.org/glibc/wiki/Contribution%20checklist Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* Replace --enable-static-pie with --disable-default-pieSiddhesh Poyarekar2021-12-131-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | Build glibc programs and tests as PIE by default and enable static-pie automatically if the architecture and toolchain supports it. Also add a new configuration option --disable-default-pie to prevent building programs as PIE. Only the following architectures now have PIE disabled by default because they do not work at the moment. hppa, ia64, alpha and csky don't work because the linker is unable to handle a pcrel relocation generated from PIE objects. The microblaze compiler is currently failing with an ICE. GNU hurd tries to enable static-pie, which does not work and hence fails. All these targets have default PIE disabled at the moment and I have left it to the target maintainers to enable PIE on their targets. build-many-glibcs runs clean for all targets. I also tested x86_64 on Fedora and Ubuntu, to verify that the default build as well as --disable-default-pie work as expected with both system toolchains. Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* dso-ordering-test.py: Put all sources in one directory [BZ #28550]H.J. Lu2021-11-151-13/+34
| | | | | | | | | | | | | | | | | | | | | | Put all sources for DSO sorting tests in the dso-sort-tests-src directory and compile test relocatable objects with $(objpfx)tst-dso-ordering1-dir/tst-dso-ordering1-a.os: $(objpfx)dso-sort-tests-src/tst-dso-ordering1-a.c $(compile.c) $(OUTPUT_OPTION) to avoid random $< values from $(before-compile) when compiling test relocatable objects with $(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c) compile-command.c = $(compile.c) $(OUTPUT_OPTION) $(compile-mkdep-flags) compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS) for 3 "make -j 28" parallel builds on a machine with 112 cores at the same time. This partially fixes BZ #28550. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Add a comment for --enable-initfini-array [BZ #27945]H.J. Lu2021-11-131-1/+3
| | | | | Document that --enable-initfini-array is enabled by default in GCC 12, which can be removed when GCC 12 becomes the minimum requirement.
* Configure GCC with --enable-initfini-array [BZ #27945]H.J. Lu2021-11-051-0/+1
| | | | | | | | | | | | | | | | Starting from GCC 12, the .init_array and .fini_array sections are enabled unconditionally by commit 13a39886940331149173b25d6ebde0850668d8b9 Author: H.J. Lu <hjl.tools@gmail.com> Date: Tue Jun 8 16:09:24 2021 -0700 Always enable DT_INIT_ARRAY/DT_FINI_ARRAY on Linux configure GCC with --enable-initfini-array to enable them when using GCC release branches. Fixes BZ #27945.
* Use Linux 5.15 in build-many-glibcs.pyJoseph Myers2021-11-021-1/+1
| | | | | | | This patch makes build-many-glibcs.py use Linux 5.15. Tested with build-many-glibcs.py (host-libraries, compilers and glibcs builds).
* elf: Testing infrastructure for ld.so DSO sorting (BZ #17645)Chung-Lin Tang2021-10-211-0/+1144
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the first of a 2-part patch set that fixes slow DSO sorting behavior in the dynamic loader, as reported in BZ #17645. In order to facilitate such a large modification to the dynamic loader, this first patch implements a testing framework for validating shared object sorting behavior, to enable comparison between old/new sorting algorithms, and any later enhancements. This testing infrastructure consists of a Python script scripts/dso-ordering-test.py' which takes in a description language, consisting of strings that describe a set of link dependency relations between DSOs, and generates testcase programs and Makefile fragments to automatically test the described situation, for example: a->b->c->d # four objects linked one after another a->[bc]->d;b->c # a depends on b and c, which both depend on d, # b depends on c (b,c linked to object a in fixed order) a->b->c;{+a;%a;-a} # a, b, c serially dependent, main program uses # dlopen/dlsym/dlclose on object a a->b->c;{}!->[abc] # a, b, c serially dependent; multiple tests generated # to test all permutations of a, b, c ordering linked # to main program (Above is just a short description of what the script can do, more documentation is in the script comments.) Two files containing several new tests, elf/dso-sort-tests-[12].def are added, including test scenarios for BZ #15311 and Redhat issue #1162810 [1]. Due to the nature of dynamic loader tests, where the sorting behavior and test output occurs before/after main(), generating testcases to use support/test-driver.c does not suffice to control meaningful timeout for ld.so. Therefore a new utility program 'support/test-run-command', based on test-driver.c/support_test_main.c has been added. This does the same testcase control, but for a program specified through a command-line rather than at the source code level. This utility is used to run the dynamic loader testcases generated by dso-ordering-test.py. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1162810 Signed-off-by: Chung-Lin Tang <cltang@codesourcery.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* glibcextract.py: Place un-assemblable @@@ in a commentFangrui Song2021-10-191-1/+1
| | | | | | Unlike GCC, Clang parses asm statements and verifies they are valid instructions/directives. Place the magic @@@ into a comment to avoid a parse error.
* build-many-glibcs.py: add powerpc64le glibc variant without multiarchPaul E. Murphy2021-09-241-1/+3
| | | | | | This configuration tests the float128 to ldouble128 redirect support on powerpc64le without the extra wrappers needed to support ifunc on this target.
* Fix build-many-glibcs.py --strip for installed library renamingJoseph Myers2021-09-161-9/+7
| | | | | | | | | | | | | The renaming of installed shared libraries to use the SONAME directly rather than linking to a versioned name stopped build-many-glibcs.py --strip (used to facilitate comparing binaries before and after changes that aren't meant to change any generated code in installed glibc shared libraries) from stripping most of the installed shared libraries, because it stripped only the *.so names. Fix it to strip *.so* names instead and to detect the case of linker scripts using grep instead of hardcoding particular files that are linker scripts. Tested with build-many-glibcs.py --strip.
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