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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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Allow the variables to be overriden or have the defaults come
from the compiler currently in use.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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The only way to override LD, AR, OBJCOPY, and GPROF is through
--with-binutils (setting the environments variables on configure is
overridden by LIBC_PROG_BINUTILS).
The build-many-glibcs.py (bmg) glibcs option generates a working config,
but not fully concise (some tools will be set from environment variable,
while other will be set from $CC --print-prog-name). So remove the
environment variable set to always use the "$CC --print-prog-name".
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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I've updated copyright dates in glibc for 2023. This is the patch for
the changes not generated by scripts/update-copyrights and subsequent
build / regeneration of generated files.
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With modern ssh clients and daemons it is required to use AcceptEnv and
SendEnv configuration options to correctly support testing the DSO sort
ordering tests. This requirement is present because
scripts/dso-ordering-test.py injects GLIBC_TUNABLES to the left of the
${test_wrapper_env} and so it must both be sent by the ssh client and
accepted by the ssh daemon. This requirement is removed in this change
and the injected GLIBC_TUNABLES is placed after ${run_program_env} and
so still correctly provides the override that the test requires.
This is similar to existing tests like elf/tst-pathopt.sh,
elf/tst-rtld-load-self.sh, and locale/tst-locale-locpath.sh.
Tested that it fixes two failures when cross-testing on aarch64 with
scripts/cross-test-ssh.sh and an ssh client and daemon that do not pass
GLIBC_TUNABLES. Without this fix such a configuration will report the
following failures (since the GLIBC_TUNABLES not preserved):
FAIL: elf/tst-bz15311
FAIL: elf/tst-bz28937
Tested without regression on native x86_64 and aarch64 builds.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
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This patch makes build-many-glibcs.py use Linux 6.1.
Tested with build-many-glibcs.py (host-libraries, compilers and glibcs
builds).
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The assembler is not issued directly, but rather always through CC
wrapper. The binutils version check if done with LD instead.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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While porting ARCv2 to elfutils [1], it was brought up that the
necessary changes to the project's libelf/elf.h must come from
glibc, because they sync it from glibc [2]. Therefore, this patch
is to update ARC entries in elf/elf.h.
The majority of the update is about adding new definitions,
specially for the relocations. However, there is one rename, one
deletion, and one change:
- R_ARC_JUMP_SLOT renamed to R_ARC_JMP_SLOT to match binutils.
- R_ARC_B26 removed because it is unused and deprecated.
- R_ARC_TLS_DTPOFF_S9 changed from 0x4a to the correct value 0x49.
Finally, a specific SHT class for ARC has been added to glibcelf.py.
Else, it would result in a collision:
_register_elf_h(Sht, ranges=True,
File "/src/glibc/scripts/glibcelf.py", line x, in _register_elf_h
raise ValueError('duplicate value {}: {}, {}'.format(
ValueError: duplicate value 1879048193:
SHT_ARC_ATTRIBUTES, SHT_X86_64_UNWIND
[1]
https://sourceware.org/pipermail/elfutils-devel/2022q4/005530.html
[2]
https://sourceware.org/pipermail/elfutils-devel/2022q4/005548.html
No regression has been observed after applying this patch. Below
follows the result:
UNSUPPORTED: crypt/cert
UNSUPPORTED: elf/tst-audit22
FAIL: elf/tst-audit25a
FAIL: elf/tst-audit25b
FAIL: elf/tst-bz15311
FAIL: elf/tst-bz28937
FAIL: elf/tst-dlmopen4
UNSUPPORTED: elf/tst-dlopen-self-container
UNSUPPORTED: elf/tst-dlopen-tlsmodid-container
UNSUPPORTED: elf/tst-glibc-hwcaps-prepend-cache
UNSUPPORTED: elf/tst-ldconfig-bad-aux-cache
UNSUPPORTED: elf/tst-ldconfig-ld_so_conf-update
UNSUPPORTED: elf/tst-pldd
UNSUPPORTED: elf/tst-preload-pthread-libc
XPASS: elf/tst-protected1a
XPASS: elf/tst-protected1b
FAIL: elf/tst-tls-allocation-failure-static-patched
FAIL: elf/tst-tls1
FAIL: elf/tst-tls3
FAIL: elf/tst-tlsalign-extern
UNSUPPORTED: elf/tst-valgrind-smoke
UNSUPPORTED: grp/tst-initgroups1
UNSUPPORTED: grp/tst-initgroups2
UNSUPPORTED: io/tst-getcwd-smallbuff
UNSUPPORTED: locale/tst-localedef-path-norm
FAIL: localedata/sort-test
UNSUPPORTED: localedata/tst-localedef-hardlinks
FAIL: malloc/tst-malloc-thread-fail-malloc-check
FAIL: malloc/tst-malloc_info-malloc-check
UNSUPPORTED: math/test-fesetexcept-traps
UNSUPPORTED: math/test-fexcept-traps
UNSUPPORTED: math/test-nearbyint-except
UNSUPPORTED: math/test-nearbyint-except-2
UNSUPPORTED: misc/tst-adjtimex
UNSUPPORTED: misc/tst-clock_adjtime
FAIL: misc/tst-misalign-clone
FAIL: misc/tst-misalign-clone-internal
UNSUPPORTED: misc/tst-ntp_adjtime
UNSUPPORTED: misc/tst-pkey
UNSUPPORTED: misc/tst-rseq
UNSUPPORTED: misc/tst-rseq-disable
UNSUPPORTED: misc/tst-syslog
UNSUPPORTED: misc/tst-ttyname
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
UNSUPPORTED: nptl/tst-pthread-gdb-attach
UNSUPPORTED: nptl/tst-pthread-gdb-attach-static
UNSUPPORTED: nptl/tst-pthread-getattr
UNSUPPORTED: nptl/tst-rseq-nptl
UNSUPPORTED: nss/tst-nss-compat1
UNSUPPORTED: nss/tst-nss-db-endgrent
UNSUPPORTED: nss/tst-nss-db-endpwent
UNSUPPORTED: nss/tst-nss-files-hosts-long
UNSUPPORTED: nss/tst-nss-gai-actions
UNSUPPORTED: nss/tst-nss-test3
UNSUPPORTED: nss/tst-reload1
UNSUPPORTED: nss/tst-reload2
UNSUPPORTED: posix/bug-ga2
UNSUPPORTED: posix/bug-ga2-mem
FAIL: posix/globtest
UNSUPPORTED: posix/tst-vfork3
UNSUPPORTED: posix/tst-vfork3-mem
UNSUPPORTED: resolv/mtrace-tst-leaks2
UNSUPPORTED: resolv/tst-leaks2
UNSUPPORTED: resolv/tst-resolv-ai_idn
UNSUPPORTED: resolv/tst-resolv-ai_idn-latin1
UNSUPPORTED: resolv/tst-resolv-res_init
UNSUPPORTED: resolv/tst-resolv-res_init-thread
UNSUPPORTED: rt/tst-bz28213
UNSUPPORTED: rt/tst-mqueue1
UNSUPPORTED: rt/tst-mqueue10
UNSUPPORTED: rt/tst-mqueue2
UNSUPPORTED: rt/tst-mqueue3
UNSUPPORTED: rt/tst-mqueue4
UNSUPPORTED: rt/tst-mqueue5
UNSUPPORTED: rt/tst-mqueue6
UNSUPPORTED: rt/tst-mqueue8
UNSUPPORTED: rt/tst-mqueue8x
UNSUPPORTED: rt/tst-mqueue9
UNSUPPORTED: stdlib/test-bz22786
UNSUPPORTED: stdlib/tst-system
UNSUPPORTED: string/test-bcopy
UNSUPPORTED: string/test-memmove
UNSUPPORTED: string/tst-memmove-overflow
UNSUPPORTED: string/tst-strerror
UNSUPPORTED: string/tst-strsignal
UNSUPPORTED: time/tst-clock_settime
UNSUPPORTED: time/tst-settimeofday
Summary of test results:
21 FAIL
4184 PASS
69 UNSUPPORTED
16 XFAIL
2 XPASS
Signed-off-by: Shahab Vahedi <shahab@synopsys.com>
Signed-off-by: Vineet Gupta <vineet.gupta@linux.dev>
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From the tests point of view, this is a necessary step for another
patch [1] and allows parsing macros such as "#define A | B". Without
it, a few tests [2] choke when the other patch [1] is applied:
/src/glibc/scripts/../elf/elf.h:4167: error: uninterpretable macro
token sequence: ( EF_ARC_MACH_MSK | EF_ARC_OSABI_MSK )
Traceback (most recent call last):
File "/src/glibc/elf/tst-glibcelf.py", line 23, in <module>
import glibcelf
File "/src/glibc/scripts/glibcelf.py", line 226, in <module>
_elf_h = _parse_elf_h()
^^^^^^^^^^^^^^
File "/src/glibc/scripts/glibcelf.py", line 223, in _parse_elf_h
raise IOError('parse error in elf.h')
OSError: parse error in elf.h
[1] ARC: update definitions in elf/elf.h
https://sourceware.org/pipermail/libc-alpha/2022-November/143503.html
[2]
tst-glibcelf, tst-relro-ldso, and tst-relro-libc
Reviewed-by: Florian Weimer <fweimer@redhat.com>
Signed-off-by: Shahab Vahedi <shahab@synopsys.com>
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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
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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>
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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>
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This patch makes build-many-glibcs.py use Linux 6.0.
Tested with build-many-glibcs.py (host-libraries, compilers and glibcs
builds).
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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>
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Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
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The C tokenizer is useful separately.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
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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>
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Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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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>
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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>
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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>
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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.
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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>
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This patch makes build-many-glibcs.py use Linux 5.19.
Tested with build-many-glibcs.py (host-libraries, compilers and glibcs
builds).
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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.
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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).
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It was added in commit 603e5c8ba7257483c162cabb06eb6f79096429b6.
This caused the elf/tst-glibcelf consistency check to fail.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
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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>
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This patch makes build-many-glibcs.py use Linux 5.18.
Tested with build-many-glibcs.py (host-libraries, compilers and glibcs
builds).
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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>
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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>
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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>
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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.
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enum.IntFlag and enum.EnumMeta._missing_ support are not part of
earlier Python versions.
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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>
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This patch makes build-many-glibcs.py use Linux 5.17.
Tested with build-many-glibcs.py (host-libraries, compilers and glibcs
builds).
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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>
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This patch makes build-many-glibcs.py use binutils 2.38 branch.
Tested with build-many-glibcs.py (compilers and glibcs builds).
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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.
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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>
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This patch makes build-many-glibcs.py use Linux 5.16.
Tested with build-many-glibcs.py (host-libraries, compilers and glibcs
builds).
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Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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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).
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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
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