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f711e4ef5399...
Xiaolin Tang
LoongArch: Use __builtin_llrint{,f} with GCC >= 13
GCC 13 compiles these built-ins instead of generic
implementation for function llrint.

Link: https://gcc.gnu.org/r13-3920
Co-Authored-By: Xi Ruoyao <xry111@xry111.site>
f704192911c6...
Noah Goldstein
x86/fpu: Factor out shared avx2/avx512 code in svml_{s|d}_wrapper_impl.h
Code is exactly the same for the two so better to only maintain one
version.

All math and mathvec tests pass on x86.
f049f52dfeed...
Noah Goldstein
x86: Optimize and shrink st{r|p}{n}{cat|cpy}-evex functions
Optimizations are:
    1. Use more overlapping stores to avoid branches.
    2. Reduce how unrolled the aligning copies are (this is more of a
      code-size save, its a negative for some sizes in terms of
      perf).
    3. Improve the loop a bit (similiar to what we do in strlen with
      2x vpminu + kortest instead of 3x vpminu + kmov + test).
    4. For st{r|p}n{cat|cpy} re-order the branches to minimize the
      number that are taken.

Performance Changes:

    Times are from N = 10 runs of the benchmark suite and are
    reported as geometric mean of all ratios of
    New Implementation / Old Implementation.

    stpcpy-evex      -> 0.922
    strcat-evex      -> 0.985
    strcpy-evex      -> 0.880

    strncpy-evex    -> 0.831
    stpncpy-evex    -> 0.780

    strncat-evex    -> 0.958

Code Size Changes:
    function        -> Bytes New / Bytes Old -> Ratio

    strcat-evex      ->  819 / 1874 -> 0.437
    strcpy-evex      ->  700 / 1074 -> 0.652
    stpcpy-evex      ->  735 / 1094 -> 0.672

    strncpy-evex    -> 1397 / 2611 -> 0.535
    stpncpy-evex    -> 1489 / 2691 -> 0.553

    strncat-evex    -> 1184 / 2832 -> 0.418

Notes:
    1. Because of the significant difference between the
      implementations they are split into three files.

          strcpy-evex.S    -> strcpy, stpcpy, strcat
          strncpy-evex.S  -> strncpy
          strncat-evex.S    > strncat

      I couldn't find a way to merge them without making the
      ifdefs incredibly difficult to follow.

    2. All implementations can be made evex512 by including
      "x86-evex512-vecs.h" at the top.

    3. All implementations have an optional define:
        `USE_EVEX_MASKED_STORE`
      Setting to one uses evex-masked stores for handling short
      strings.  This saves code size and branches.  It's disabled
      for all implementations are the moment as there are some
      serious drawbacks to masked stores in certain cases, but
      that may be fixed on future architectures.

Full check passes on x86-64 and build succeeds for all ISA levels w/
and w/o multiarch.
eb4181e9f4a5...
Vladislav Khmelevsky
elf: Fix rtld-audit trampoline for aarch64
This patch fixes two problems with audit:

  1. The DL_OFFSET_RV_VPCS offset was mixed up with DL_OFFSET_RG_VPCS,
    resulting in x2 register value nulling in RG structure.

  2. We need to preserve the x8 register before function call, but
    don't have to save it's new value and restore it before return.

Anyway the final restore was using OFFSET_RV instead of OFFSET_RG value
which is wrong (althoug doesn't affect anything).

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
e3d9ca4e9474...
Xiaolin Tang
LoongArch: Add support for scalbn[f]
Add inline assembler for the scalbn functions. Passes GLIBC regression.

GCC 13, LoongArch support ___builtin_scalbn{,f} with -fno-math-errno,
but only "libm" can use -fno-math-errno in GLIBC, and scalbn is in libc
instead of libm because __printf_fp calls it.
e1d082d9de39...
Noah Goldstein
x86/fpu: Add missing ISA sections to variety of svml files
Many sse4/avx2/avx512 files where just in .text.
e1697a540c49...
Xiaolin Tang
LoongArch: Use __builtin_lrint{,f} with GCC >= 13
GCC 13 compiles these built-ins instead of generic
implementation for function lrint.

Link: https://gcc.gnu.org/r13-3920
Co-Authored-By: Xi Ruoyao <xry111@xry111.site>
d44e116428fe...
Noah Goldstein
benchtests: Make str{n}{cat|cpy} benchmarks output json
Json output is easier to parse and most other benchmarks already do
the same.
d371be4b1137...
Noah Goldstein
x86/fpu: Reformat svml_{s|d}_wrapper_impl.h
Just reformat with the style convention used in other x86 assembler
files.  This doesn't change libm.so or libmvec.so.
d3366b6b87d0...
Xiaolin Tang
LoongArch: Add support for scalb[f]
Add inline assembler for the scalb functions. Passes GLIBC regression.
bd612245748b...
Xiaolin Tang
LoongArch: Hard Float Support for fmaximum_num{f/ }, fminimum_num{f/ }.
Use hardware Floating-point instruction f{max/min}.{s/d}, fclass.{s/d}
to implement fmaximum_num{f/ }, fminimum_num{f/ }.

      *  sysdeps/loongarch/fpu/s_fmaximum_num.c: New file.
      *  sysdeps/loongarch/fpu/s_fmaximum_numf.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fminimum_num.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fminimum_numf.c: Likewise.
a9acb7b39ed2...
YunQiang Su
Define in_int32_t_range to check if the 64 bit time_t syscall should be used
Currently glibc uses in_time_t_range to detects time_t overflow,
and if it occurs fallbacks to 64 bit syscall version.

The function name is confusing because internally time_t might be
either 32 bits or 64 bits (depending on __TIMESIZE).

This patch refactors the in_time_t_range by replacing it with
in_int32_t_range for the case to check if the 64 bit time_t syscall
should be used.

The in_time_t range is used to detect overflow of the
syscall return value.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
a46956e65d03...
Andreas Schwab
stdio-common: Add missing dependencies (bug 29780)
Handle all object suffixes for dependencies of errlist-data and siglist
objects.
a1981ecbfd4a...
Xiaolin Tang
Use GCC builtins for llrint functions if desired.
This patch is using the corresponding GCC builtin for llrintf, llrint,
llrintl and llrintf128 if the USE_FUNCTION_BUILTIN macros are defined to one
in math-use-builtins-function.h.

Co-Authored-By: Xi Ruoyao <xry111@xry111.site>
a10f9fb3ff37...
Xiaolin Tang
LoongArch: Hard Float Support for fmaximum_mag{f/ }, fminimum_mag{f/ }.
Use hardware Floating-point instruction f{maxa/mina}.{s/d}, fclass.{s/d}
to implement fmaximum_mag{f/ }, fminimum_mag{f/ }.

      *  sysdeps/loongarch/fpu/s_fmaximum_mag.c: New file.
      *  sysdeps/loongarch/fpu/s_fmaximum_magf.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fminimum_mag.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fminimum_magf.c: Likewise.
987f8647e8d6...
Shahab Vahedi
scripts: Add "|" operator support to glibcpp's parsing
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>
95177b78ffa7...
Noah Goldstein
x86/fpu: Fix misspelled evex512 section in variety of svml files
```
.section .text.evex512, "ax", @progbits
```

With misspelled as:

```
.section .text.exex512, "ax", @progbits
```
948652e4f82f...
Xi Ruoyao
LoongArch: Use __builtin_rint{,f} with GCC >= 13
GCC 13 compiles these built-ins to frint.{d,s} instruction.

Link: https://gcc.gnu.org/r13-3919
94628de77888...
Alan Modra
elf/tst-tlsopt-powerpc fails when compiled with -mcpu=power10 (BZ# 29776)
Supports pcrel addressing of TLS GOT entry.  Also tweak the non-pcrel
asm constraint to better reflect how the reg is used.
885d340f20aa...
Xiaolin Tang
LoongArch: Add support for ilogb[f]
Add inline assembler for the ilogb functions. Passes GLIBC regression.
838b0da96a33...
Xiaolin Tang
LoongArch: Hard Float Support for fmaximum_mag_num{f/ }, fminimum_mag_num{f/ }.
Use hardware Floating-point instruction f{maxa/mina}.{s/d}, fclass.{s/d}
to implement fmaximum_mag_num{f/ }, fminimum_mag_num{f/ }.

      *  sysdeps/loongarch/fpu/s_fmaximum_mag_num.c: New file.
      *  sysdeps/loongarch/fpu/s_fmaximum_mag_numf.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fminimum_mag_num.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fminimum_mag_numf.c: Likewise.
73e35174f567...
Xiaolin Tang
LoongArch: Hard Float Support for fmaxmag{f/ }, fminmag{f/ }.
Use hardware Floating-point instruction f{maxa/mina}.{s/d},
to implement fmaxmag{f/ }, fminmag{f/ }.

      *  sysdeps/loongarch/fpu/s_fmaxmag.c: New file.
      *  sysdeps/loongarch/fpu/s_fmaxmagf.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fminmag.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fminmagf.c: Likewise.
72f6a5a0ed25...
Noah Goldstein
x86/fpu: Cleanup code in svml_{s|d}_wrapper_impl.h
1. Remove unnecessary spills.
2. Fix some small nit missed optimizations.

All math and mathvec tests pass on x86.
6ae0737d4309...
Shahab Vahedi
ARC: update definitions in elf/elf.h
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>
64b8b6516b3c...
Noah Goldstein
x86: Add evex optimized functions for the wchar_t strcpy family
Implemented:
    wcscat-evex  (+ 905 bytes)
    wcscpy-evex  (+ 674 bytes)
    wcpcpy-evex  (+ 709 bytes)
    wcsncpy-evex (+1358 bytes)
    wcpncpy-evex (+1467 bytes)
    wcsncat-evex (+1213 bytes)

Performance Changes:
    Times are from N = 10 runs of the benchmark suite and are reported
    as geometric mean of all ratios of New Implementation / Best Old
    Implementation. Best Old Implementation was determined with the
    highest ISA implementation.

    wcscat-evex    -> 0.991
    wcscpy-evex    -> 0.587
    wcpcpy-evex    -> 0.695
    wcsncpy-evex    -> 0.719
    wcpncpy-evex    -> 0.694
    wcsncat-evex    -> 0.979

Code Size Changes:
    This change  increase the size of libc.so by ~6.3kb bytes. For
    reference the patch optimizing the normal strcpy family functions
    decreases libc.so by ~5.7kb.

Full check passes on x86-64 and build succeeds for all ISA levels w/
and w/o multiarch.
642933158e7c...
Noah Goldstein
x86: Optimize and shrink st{r|p}{n}{cat|cpy}-avx2 functions
Optimizations are:
    1. Use more overlapping stores to avoid branches.
    2. Reduce how unrolled the aligning copies are (this is more of a
      code-size save, its a negative for some sizes in terms of
      perf).
    3. For st{r|p}n{cat|cpy} re-order the branches to minimize the
      number that are taken.

Performance Changes:

    Times are from N = 10 runs of the benchmark suite and are
    reported as geometric mean of all ratios of
    New Implementation / Old Implementation.

    strcat-avx2      -> 0.998
    strcpy-avx2      -> 0.937
    stpcpy-avx2      -> 0.971

    strncpy-avx2    -> 0.793
    stpncpy-avx2    -> 0.775

    strncat-avx2    -> 0.962

Code Size Changes:
    function        -> Bytes New / Bytes Old -> Ratio

    strcat-avx2      ->  685 / 1639 -> 0.418
    strcpy-avx2      ->  560 /  903 -> 0.620
    stpcpy-avx2      ->  592 /  939 -> 0.630

    strncpy-avx2    -> 1176 / 2390 -> 0.492
    stpncpy-avx2    -> 1268 / 2438 -> 0.520

    strncat-avx2    -> 1042 / 2563 -> 0.407

Notes:
    1. Because of the significant difference between the
      implementations they are split into three files.

          strcpy-avx2.S    -> strcpy, stpcpy, strcat
          strncpy-avx2.S  -> strncpy
          strncat-avx2.S    > strncat

      I couldn't find a way to merge them without making the
      ifdefs incredibly difficult to follow.

Full check passes on x86-64 and build succeeds for all ISA levels w/
and w/o multiarch.
5fe2647d3168...
Xiaolin Tang
LoongArch: Hard Float Support for float-point classification functions.
Use hardware Floating-point instruction fclass.{s/d} to implement
classification functions, i.e finite{f/ }, fpclassify{f/ }, isnan{f/ },
isinf{f/ }, issignaling{f/ }.

      *  sysdeps/loongarch/fpu/s_finite.c: New file.
      *  sysdeps/loongarch/fpu/s_finitef.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fpclassify.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fpclassifyf.c: Likewise.
      *  sysdeps/loongarch/fpu/s_isinf.c: Likewise.
      *  sysdeps/loongarch/fpu/s_isinff.c: Likewise.
      *  sysdeps/loongarch/fpu/s_isnan.c: Likewise.
      *  sysdeps/loongarch/fpu/s_isnanf.c: Likewise.
      *  sysdeps/loongarch/fpu/s_issignaling.c: Likewise.
      *  sysdeps/loongarch/fpu/s_issignalingf.c: Likewise.
      *  sysdeps/loongarch/fpu_control.h: Add _FCLASS_* macro.
59aa41585f66...
Adhemerval Zanella Netto
i386: Avoid rely on linker optimization to avoid relocation
lld does not implement all the linker optimization to avoid the GOT
relocation as done by binutils (bfd/elf32-i386.c:elf_i386_convert_load_reloc).
The current 'movl main@GOT(%ebx), %eax' will then create a GOT
relocation when building with lld, which make static-pie status to
not being able to start the provided main function.

The change uses a __wrap_main local symbol, which in turn calls main
(similar as used by aarch64 and s390x).

Checked on i686-linux-gnu with binutils and lld.
Reviewed-by: Fangrui Song <maskray@google.com>
56da6a073daa...
Xiaolin Tang
LoongArch: Use __builtin_{fma, fmaf} to implement function {fma, fmaf}.
Use __builtin_{fma, fmaf} to implement function {fma, fmaf} instead of
the generic implementation.

      *  sysdeps/loongarch/fpu/math-use-builtins-fma.h: New file.
52cf11004eb1...
Noah Goldstein
x86: Add avx2 optimized functions for the wchar_t strcpy family
Implemented:
    wcscat-avx2  (+ 744 bytes
    wcscpy-avx2  (+ 539 bytes)
    wcpcpy-avx2  (+ 577 bytes)
    wcsncpy-avx2 (+1108 bytes)
    wcpncpy-avx2 (+1214 bytes)
    wcsncat-avx2 (+1085 bytes)

Performance Changes:
    Times are from N = 10 runs of the benchmark suite and are reported
    as geometric mean of all ratios of New Implementation / Best Old
    Implementation. Best Old Implementation was determined with the
    highest ISA implementation.

    wcscat-avx2    -> 0.975
    wcscpy-avx2    -> 0.591
    wcpcpy-avx2    -> 0.698
    wcsncpy-avx2    -> 0.730
    wcpncpy-avx2    -> 0.711
    wcsncat-avx2    -> 0.954

Code Size Changes:
    This change  increase the size of libc.so by ~5.5kb bytes. For
    reference the patch optimizing the normal strcpy family functions
    decreases libc.so by ~5.2kb.

Full check passes on x86-64 and build succeeds for all ISA levels w/
and w/o multiarch.
38caf7a1cc92...
Zong Li
riscv: Get level 3 cache's information
RISC-V architecture extends the cache information for level 3 cache
in AUX vector in Linux v.6.1-rc1. This patch supports sysconf to get
the level 3 cache information.

Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
2e2485ce05bc...
Xiaolin Tang
Use GCC builtins for logb functions if desired.
This patch is using the corresponding GCC builtin for logbf, logb,
logbl and logbf128 if the USE_FUNCTION_BUILTIN macros are defined to one
in math-use-builtins-function.h.

Co-Authored-By: Xi Ruoyao <xry111@xry111.site>
2b23ab1feab5...
Xiaolin Tang
Use GCC builtins for lrint functions if desired.
This patch is using the corresponding GCC builtin for lrintf, lrint,
lrintl and lrintf128 if the USE_FUNCTION_BUILTIN macros are defined to one
in math-use-builtins-function.h.

Co-Authored-By: Xi Ruoyao <xry111@xry111.site>
2ae7990542e1...
Fangrui Song
Makerules: Generate shlib.lds with -fuse-ld=bfd
lld does not dump a linker script with --verbose (it does not use a
linker script driven design and lots of linker processing is not
serializable as a linker script anyway).  With the default
--with-default-link=no build, $@T is empty and makes `test -s $@T` fail.

Just dump the linker script with -fuse-ld=bfd.  lld since 15
(https://reviews.llvm.org/D124656) supports custom RELRO sections in the
GNU ld dumped linker script.

Reviewed-by: Sam James <sam@gentoo.org>
22a46dee2435...
Florian Weimer
Linux: Support __IPC_64 in sysvctl *ctl command arguments (bug 29771)
Old applications pass __IPC_64 as part of the command argument because
old glibc did not check for unknown commands, and passed through the
arguments directly to the kernel, without adding __IPC_64.
Applications need to continue doing that for old glibc compatibility,
so this commit enables this approach in current glibc.

For msgctl and shmctl, if no translation is required, make
direct system calls, as we did before the time64 changes.  If
translation is required, mask __IPC_64 from the command argument.

For semctl, the union-in-vararg argument handling means that
translation is needed on all architectures.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
  • glibc-armhf-linux: check (clobber) -  stdio
227df6243a2b...
Tulio Magno Quites Machado Filho
Apply asm redirections in syslog.h before first use [BZ #27087]
Similar to d0fa09a770, but for syslog.h when _FORTIFY_SOURCE > 0.
Fixes [BZ #27087] by applying long double-related asm redirections
before using functions in bits/syslog.h.

Tested with build-many-glibcs.py.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
1ed6c7ab2e4c...
Xiaolin Tang
LoongArch: Hard Float Support for fmaximum{f/ }, fminimum{f/ }.
Use hardware Floating-point instruction f{max/min}.{s/d}, fclass.{s/d}
to implement fmaximum{f/ }, fminimum{f/ }.

      *  sysdeps/loongarch/fpu/s_fmaximum.c: New file.
      *  sysdeps/loongarch/fpu/s_fmaximumf.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fminimum.c: Likewise.
      *  sysdeps/loongarch/fpu/s_fminimumf.c: Likewise.
1a8335a40843...
Adhemerval Zanella
debug: Fix typo in tests-unsupported rule
From commit 2e274cd8c1ebd0bd0c43a7f2e5433685740938ca.
13c549f49705...
Xiaolin Tang
LoongArch: Use __builtin_logb{,f} with GCC >= 13
GCC 13 compiles these built-ins instead of generic
implementation for function logb.

Link: https://gcc.gnu.org/r13-3922
Co-Authored-By: Xi Ruoyao <xry111@xry111.site>
049781285dad...
наб
iconvdata/tst-table-charmap.sh: remove handling of old, borrowed format
This "Old POSIX/DKUUG borrowed format" handling is original to the file
and doesn't seem to have ever been used, i.e. id/t-t-c doesn't seem to
have ever been called with argv[1] == POSIX.

Upcoming is a POSIX charmap, which would inadvertently trigger this.

Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Reviewed-by: Florian Weimer <fweimer@redhat.com>