| Commit message (Collapse) | Author | Age | Files | Lines |
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This patch updates sysdeps/unix/sysv/linux/syscall-names.list for
Linux 4.20. Although there are no new syscalls, the
riscv_flush_icache syscall has moved to asm/unistd.h (previously in
asm/syscalls.h) and so now needs to be added to the list.
Tested with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/syscall-names.list: Update kernel
version to 4.20.
(riscv_flush_icache): New syscall.
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I've updated copyright dates in glibc for 2019. This is the patch for
the changes not generated by scripts/update-copyrights and subsequent
build / regeneration of generated files.
Please remember to include 2019 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).
* NEWS: Update copyright dates.
* catgets/gencat.c (print_version): Likewise.
* csu/version.c (banner): Likewise.
* debug/catchsegv.sh: Likewise.
* debug/pcprofiledump.c (print_version): Likewise.
* debug/xtrace.sh (do_version): Likewise.
* elf/ldconfig.c (print_version): Likewise.
* elf/ldd.bash.in: Likewise.
* elf/pldd.c (print_version): Likewise.
* elf/sotruss.sh: Likewise.
* elf/sprof.c (print_version): Likewise.
* iconv/iconv_prog.c (print_version): Likewise.
* iconv/iconvconfig.c (print_version): Likewise.
* locale/programs/locale.c (print_version): Likewise.
* locale/programs/localedef.c (print_version): Likewise.
* login/programs/pt_chown.c (print_version): Likewise.
* malloc/memusage.sh (do_version): Likewise.
* malloc/memusagestat.c (print_version): Likewise.
* malloc/mtrace.pl: Likewise.
* manual/libc.texinfo: Likewise.
* nptl/version.c (banner): Likewise.
* nscd/nscd.c (print_version): Likewise.
* nss/getent.c (print_version): Likewise.
* nss/makedb.c (print_version): Likewise.
* posix/getconf.c (main): Likewise.
* scripts/test-installation.pl: Likewise.
* sysdeps/unix/sysv/linux/lddlibc4.c (main): Likewise.
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* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
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<asm/syscalls.h> has been removed by
commit 27f8899d6002e11a6e2d995e29b8deab5aa9cc25
Author: David Abdurachmanov <david.abdurachmanov@gmail.com>
Date: Thu Nov 8 20:02:39 2018 +0100
riscv: add asm/unistd.h UAPI header
Marcin Juszkiewicz reported issues while generating syscall table for riscv
using 4.20-rc1. The patch refactors our unistd.h files to match some other
architectures.
- Add asm/unistd.h UAPI header, which has __ARCH_WANT_NEW_STAT only for 64-bit
- Remove asm/syscalls.h UAPI header and merge to asm/unistd.h
- Adjust kernel asm/unistd.h
So now asm/unistd.h UAPI header should show all syscalls for riscv.
<asm/syscalls.h> may be restored by
Subject: [PATCH] riscv: restore asm/syscalls.h UAPI header
Date: Tue, 11 Dec 2018 09:09:35 +0100
UAPI header asm/syscalls.h was merged into UAPI asm/unistd.h header,
which did resolve issue with missing syscalls macros resulting in
glibc (2.28) build failure. It also broke glibc in a different way:
asm/syscalls.h is being used by glibc. I noticed this while doing
Fedora 30/Rawhide mass rebuild.
The patch returns asm/syscalls.h header and incl. it into asm/unistd.h.
I plan to send a patch to glibc to use asm/unistd.h instead of
asm/syscalls.h
In the meantime, we use __has_include__, which was added to GCC 5, to
check if <asm/syscalls.h> exists before including it. Tested with
build-many-glibcs.py for riscv against kernel 4.19.12 and 4.20-rc7.
[BZ #24022]
* sysdeps/unix/sysv/linux/riscv/flush-icache.c: Check if
<asm/syscalls.h> exists with __has_include__ before including it.
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The recent difftime changes introduced localplt test failures on nios2
and sparc32, two configurations where some soft-fp functions are
defined in / exported from libc.so, and where the difftime changes
affected the particular set of floating-point operations used in
libc.so. This patch adds those functions to localplt.data, alongside
other such functions already there. (In the sparc32 case, and more
generally on any platform where long double is a software
floating-point type, it would probably be more efficient to avoid
using long double at all in difftime, but that's a pre-existing
issue.)
Tested with build-many-glibcs.py for its nios2 and sparcv9
configurations.
[BZ #24023]
* sysdeps/unix/sysv/linux/nios2/localplt.data: Allow __floatundidf
PLT reference in libc.so.
* sysdeps/unix/sysv/linux/sparc/sparc32/localplt.data: Allow
_Q_lltoq and _Q_qtod PLT references in libc.so.
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This patch add two abi combinations support for C-SKY ABIV2: soft-float
little endian, hard float little endian. C-SKY ABI manual and architecture
user guide are available from: https://github.com/c-sky/csky-doc
* config.h.in (CSKYABI, CSKY_HARD_FLOAT): New Define.
* scripts/build-many-glibcs.py: Add C-SKY targets.
* sysdeps/csky/Implies: New file.
* sysdeps/csky/Makefile: Likewise.
* sysdeps/csky/abiv2/__longjmp.S: Likewise.
* sysdeps/csky/abiv2/csky-mcount.S: Likewise.
* sysdeps/csky/abiv2/dl-trampoline.S: Likewise.
* sysdeps/csky/abiv2/memcmp.S: Likewise.
* sysdeps/csky/abiv2/memcpy.S: Likewise.
* sysdeps/csky/abiv2/memmove.S: Likewise.
* sysdeps/csky/abiv2/memset.S: Likewise.
* sysdeps/csky/abiv2/setjmp.S: Likewise.
* sysdeps/csky/abiv2/start.S: Likewise.
* sysdeps/csky/abiv2/strcmp.S: Likewise.
* sysdeps/csky/abiv2/strcpy.S: Likewise.
* sysdeps/csky/abiv2/strlen.S: Likewise.
* sysdeps/csky/abiv2/tls-macros.h: Likewise.
* sysdeps/csky/abort-instr.h: Likewise.
* sysdeps/csky/atomic-machine.h: Likewise.
* sysdeps/csky/bits/endian.h: Likewise.
* sysdeps/csky/bits/fenv.h: Likewise.
* sysdeps/csky/bits/link.h: Likewise.
* sysdeps/csky/bits/setjmp.h: Likewise.
* sysdeps/csky/bsd-_setjmp.S: Likewise.
* sysdeps/csky/bsd-setjmp.S: Likewise.
* sysdeps/csky/configure: Likewise.
* sysdeps/csky/configure.ac: Likewise.
* sysdeps/csky/dl-machine.h: Likewise.
* sysdeps/csky/dl-procinfo.c: Likewise.
* sysdeps/csky/dl-procinfo.h: Likewise.
* sysdeps/csky/dl-sysdep.h: Likewise.
* sysdeps/csky/dl-tls.h: Likewise.
* sysdeps/csky/fpu/fclrexcpt.c: Likewise.
* sysdeps/csky/fpu/fedisblxcpt.c: Likewise.
* sysdeps/csky/fpu/feenablxcpt.c: Likewise.
* sysdeps/csky/fpu/fegetenv.c: Likewise.
* sysdeps/csky/fpu/fegetexcept.c: Likewise.
* sysdeps/csky/fpu/fegetmode.c: Likewise.
* sysdeps/csky/fpu/fegetround.c: Likewise.
* sysdeps/csky/fpu/feholdexcpt.c: Likewise.
* sysdeps/csky/fpu/fenv_libc.h: Likewise.
* sysdeps/csky/fpu/fenv_private.h: Likewise.
* sysdeps/csky/fpu/fesetenv.c: Likewise.
* sysdeps/csky/fpu/fesetexcept.c: Likewise.
* sysdeps/csky/fpu/fesetmode.c: Likewise.
* sysdeps/csky/fpu/fesetround.c: Likewise.
* sysdeps/csky/fpu/feupdateenv.c: Likewise.
* sysdeps/csky/fpu/fgetexcptflg.c: Likewise.
* sysdeps/csky/fpu/fix-fp-int-convert-overflow.h: Likewise.
* sysdeps/csky/fpu/fraiseexcpt.c: Likewise.
* sysdeps/csky/fpu/fsetexcptflg.c: Likewise.
* sysdeps/csky/fpu/ftestexcept.c: Likewise.
* sysdeps/csky/fpu/libm-test-ulps: Likewise.
* sysdeps/csky/fpu/libm-test-ulps-name: Likewise.
* sysdeps/csky/fpu_control.h: Likewise.
* sysdeps/csky/gccframe.h: Likewise.
* sysdeps/csky/jmpbuf-unwind.h: Likewise.
* sysdeps/csky/ldsodefs.h: Likewise.
* sysdeps/csky/libc-tls.c: Likewise.
* sysdeps/csky/linkmap.h: Likewise.
* sysdeps/csky/machine-gmon.h: Likewise.
* sysdeps/csky/memusage.h: Likewise.
* sysdeps/csky/nofpu/Implies: Likewise.
* sysdeps/csky/nofpu/libm-test-ulps: Likewise.
* sysdeps/csky/nofpu/libm-test-ulps-name: Likewise.
* sysdeps/csky/nptl/Makefile: Likewise.
* sysdeps/csky/nptl/bits/pthreadtypes-arch.h: Likewise.
* sysdeps/csky/nptl/bits/semaphore.h: Likewise.
* sysdeps/csky/nptl/pthread-offsets.h: Likewise.
* sysdeps/csky/nptl/pthreaddef.h: Likewise.
* sysdeps/csky/nptl/tcb-offsets.sym: Likewise.
* sysdeps/csky/nptl/tls.h: Likewise.
* sysdeps/csky/preconfigure: Likewise.
* sysdeps/csky/sfp-machine.h: Likewise.
* sysdeps/csky/sotruss-lib.c: Likewise.
* sysdeps/csky/stackinfo.h: Likewise.
* sysdeps/csky/sysdep.h: Likewise.
* sysdeps/csky/tininess.h: Likewise.
* sysdeps/csky/tst-audit.h: Likewise.
* sysdeps/unix/sysv/linux/csky/Implies: Likewise.
* sysdeps/unix/sysv/linux/csky/Makefile: Likewise.
* sysdeps/unix/sysv/linux/csky/Versions: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/____longjmp_chk.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/clone.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/syscall.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym: Likewise.
* sysdeps/unix/sysv/linux/csky/bits/procfs.h: Likewise.
* sysdeps/unix/sysv/linux/csky/bits/shmlba.h: Likewise.
* sysdeps/unix/sysv/linux/csky/c++-types.data: Likewise.
* sysdeps/unix/sysv/linux/csky/configure: Likewise.
* sysdeps/unix/sysv/linux/csky/configure.ac: Likewise.
* sysdeps/unix/sysv/linux/csky/ipc_priv.h: Likewise.
* sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h: Likewise.
* sysdeps/unix/sysv/linux/csky/kernel-features.h: Likewise.
* sysdeps/unix/sysv/linux/csky/ld.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/ldconfig.h: Likewise.
* sysdeps/unix/sysv/linux/csky/libBrokenLocale.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libanl.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libcrypt.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libdl.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libpthread.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libresolv.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/librt.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libthread_db.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/libutil.abilist: Likewise.
* sysdeps/unix/sysv/linux/csky/localplt.data: Likewise.
* sysdeps/unix/sysv/linux/csky/makecontext.c: Likewise.
* sysdeps/unix/sysv/linux/csky/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/csky/pt-vfork.S: Likewise.
* sysdeps/unix/sysv/linux/csky/register-dump.h: Likewise.
* sysdeps/unix/sysv/linux/csky/shlib-versions: Likewise.
* sysdeps/unix/sysv/linux/csky/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/csky/sys/cachectl.h: Likewise.
* sysdeps/unix/sysv/linux/csky/sys/ucontext.h: Likewise.
* sysdeps/unix/sysv/linux/csky/sys/user.h: Likewise.
* sysdeps/unix/sysv/linux/csky/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/csky/sysdep.h: Likewise.
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S390 kernel sigaction is the same as the Linux generic one.
Checked with a s390-linux-gnu and s390x-linux-gnu build.
* sysdeps/unix/sysv/linux/s390/kernel_sigaction.h: Use Linux generic
kernel_sigction definition.
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IA64 kernel_sigaction.h definition is the sama as the Linux generic
one.
Checked on ia64-linux-gnu.
* sysdeps/unix/sysv/linux/ia64/kernel_sigaction.h: Remove file.
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HPPA kernel_sigaction.h definition is the sama as the Linux generic
one and old_kernel_sigaction is not used.
Checked on hppa-linux-gnu.
* sysdeps/unix/sysv/linux/hppa/kernel_sigaction.h: Remove file.
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Alpha rt_sigaction syscall uses a slight different kernel ABI than
generic one:
arch/alpha/kernel/signal.c
90 SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
91 struct sigaction __user *, oact,
92 size_t, sigsetsize, void __user *, restorer)
Similar as sparc, the syscall expects a restorer function. However
different than sparc, alpha defines the restorer as the 5th argument
(sparc defines as the 4th).
This patch removes the arch-specific alpha sigaction implementation,
adapt the Linux generic one to different restore placements (through
STUB macro), and make alpha use the Linux generic kernel_sigaction
definition.
Checked on alpha-linux-gnu and x86_64-linux-gnu (for sanity).
* sysdeps/unix/sysv/linux/alpha/Makefile: Update comment about
__syscall_rt_sigaction.
* sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h
(kernel_sigaction): Use Linux generic defintion.
(STUB): Define.
(__syscall_rt_sigreturn, __syscall_sigreturn): Add prototype.
* sysdeps/unix/sysv/linux/alpha/rt_sigaction.S
(__syscall_rt_sigaction): Remove implementation.
(__syscall_sigreturn, __syscall_rt_sigreturn): Define as global and
hidden.
* sysdeps/unix/sysv/linux/alpha/sigaction.c: Remove file.
* sysdeps/unix/sysv/linux/alpha/sysdep.h (INLINE_SYSCALL,
INTERNAL_SYSCALL): Remove definitions.
* sysdeps/unix/sysv/linux/sigaction.c: Define STUB to accept both the
action and signal set size.
* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c (STUB): Redefine.
* sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c (STUB): Likewise.
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Commit b4a5d26d883 (linux: Consolidate sigaction implementation) added
a wrong kernel_sigaction definition for m68k, meant for __NR_sigaction
instead of __NR_rt_sigaction as used on generic Linux sigaction
implementation. This patch fixes it by using the Linux generic
definition meant for the RT kernel ABI.
Checked the signal tests on emulated m68-linux-gnu (Aranym). It fixes
the faulty signal/tst-sigaction and man works as expected.
Adhemerval Zanella <adhemerval.zanella@linaro.org>
James Clarke <jrtc27@jrtc27.com>
[BZ #23960]
* sysdeps/unix/sysv/linux/kernel_sigaction.h (HAS_SA_RESTORER):
Define if SA_RESTORER is defined.
(kernel_sigaction): Define sa_restorer if HAS_SA_RESTORER is defined.
(SET_SA_RESTORER, RESET_SA_RESTORER): Define iff the macro are not
already defined.
* sysdeps/unix/sysv/linux/m68k/kernel_sigaction.h (SA_RESTORER,
kernel_sigaction, SET_SA_RESTORER, RESET_SA_RESTORER): Remove
definitions.
(HAS_SA_RESTORER): Define.
* sysdeps/unix/sysv/linux/sparc/kernel_sigaction.h (SA_RESTORER,
SET_SA_RESTORER, RESET_SA_RESTORER): Remove definition.
(HAS_SA_RESTORER): Define.
* sysdeps/unix/sysv/linux/nios2/kernel_sigaction.h: Include generic
kernel_sigaction after define SET_SA_RESTORER and RESET_SA_RESTORER.
* sysdeps/unix/sysv/linux/powerpc/kernel_sigaction.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sigaction.c: Likewise.
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kernel-features.h has a macro __ASSUME_ST_INO_64_BIT, with a comment
"However, SH is lame, and still does not have a 64-bit inode field.".
The macro is, in fact, defined to 0 by Alpha as well as SH. The Alpha
case is, however, trivially useless: none of the files that test
__ASSUME_ST_INO_64_BIT are built for Alpha (which gained kernel
support for stat64 syscalls, with a 64-bit st_ino field, in Linux
2.6.4; the define to 0 for Alpha in glibc predates that).
The SH kernel gained support for a 64-bit st_ino in struct stat64 in
commit 760bcb1deec13c50e20399c84cb6a8ea41cc2820 ("sh: Fix fstatat64()
syscall."), which is in Linux 2.6.22 and later. So the redefinition
of __ASSUME_ST_INO_64_BIT to 0 is of no use for SH either; three of
the files testing it do so immediately after a stat64-family syscall
has been used, which will always have set the 64-bit st_ino correctly
(in addition to the 32-bit __st_ino), while the relevant code
__xstat32_conv executes only after such a syscall in the function
calling __xstat32_conv.
Thus this patch removes __ASSUME_ST_INO_64_BIT and code testing it.
Removing the useless [!__ASSUME_ST_INO_64_BIT] code in __xstat32_conv
renders the [_HAVE_STAT64___ST_INO] and [!_HAVE_STAT64___ST_INO] cases
around it identical, so that conditional is also removed.
Tested compilation with build-many-glibcs.py for its Alpha and SH
configurations; also ran the glibc testsuite for x86_64 and x86.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_ST_INO_64_BIT): Remove macro definition.
* sysdeps/unix/sysv/linux/alpha/kernel-features.h
(__ASSUME_ST_INO_64_BIT): Do not undefine and define.
* sysdeps/unix/sysv/linux/sh/kernel-features.h
(__ASSUME_ST_INO_64_BIT): Likewise.
* sysdeps/unix/sysv/linux/fxstat64.c: Do not include
<kernel-features.h>.
(___fxstat64) [_HAVE_STAT64___ST_INO && !__ASSUME_ST_INO_64_BIT]:
Remove conditional code.
* sysdeps/unix/sysv/linux/lxstat64.c: Do not include
<kernel-features.h>.
(___lxstat64) [_HAVE_STAT64___ST_INO && !__ASSUME_ST_INO_64_BIT]:
Remove conditional code.
* sysdeps/unix/sysv/linux/xstat64.c: Do not include
<kernel-features.h>.
(___xstat64) [_HAVE_STAT64___ST_INO && !__ASSUME_ST_INO_64_BIT]:
Remove conditional code.
* sysdeps/unix/sysv/linux/xstatconv.c: Do not include
<kernel-features.h>.
(__xstat32_conv) [_HAVE_STAT64___ST_INO]: Remove conditional code.
[!_HAVE_STAT64___ST_INO]: Make code unconditional.
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GCC mainline now gives errors for an asm that clobbers the stack
pointer. According to
<https://gcc.gnu.org/ml/gcc-patches/2018-12/msg00932.html> GCC
previously ignored such a clobber; thus, this patch removes it from
the clobbers for ia64 syscalls.
Tested with build-many-glibcs.py for ia64-linux-gnu.
* sysdeps/unix/sysv/linux/ia64/sysdep.h (ASM_CLOBBERS_6_COMMON):
Do not clobber r12.
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Continuing the process of building up and using Python infrastructure
for extracting and using values in headers, this patch adds a test
that MAP_* constants from sys/mman.h agree with those in the Linux
kernel headers. (Other sys/mman.h constants could be added to the
test separately.)
This set of constants has grown over time, so the generic code is
enhanced to allow saying extra constants are OK on either side of the
comparison (where the caller sets those parameters based on the Linux
kernel headers version, compared with the version the headers were
last updated from). Although the test is a custom Python file, my
intention is to move in future to a single Python script for such
tests and text files it takes as inputs, once there are enough
examples to provide a guide to the common cases in such tests (I'd
like to end up with most or all such sets of constants copied from
kernel headers having such tests, and likewise for structure layouts
from the kernel).
The Makefile code is essentially the same as for tst-signal-numbers,
but I didn't try to find an object file to depend on to represent the
dependency on the headers used by the test (the conform/ tests don't
try to represent such header dependencies at all, for example).
Tested with build-many-glibcs.py, and also for x86_64 with older
kernel headers.
* scripts/glibcextract.py (compare_macro_consts): Take parameters
to allow extra macros from first or second sources.
* sysdeps/unix/sysv/linux/tst-mman-consts.py: New file.
* sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc]
(tests-special): Add $(objpfx)tst-mman-consts.out.
($(objpfx)tst-mman-consts.out): New makefile target.
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Linux kernel have remove stat64 family from default syscall set, new
implementations with statx is needed when __ARCH_WANT_STAT64 is not
define. This patch add conditionals for relevant functions, using statx
system call to get information and then copy to the return buf, ref to
include/linux/fs.h from linux kernel.
* sysdeps/unix/sysv/linux/Makefile: Add statx_cp.c.
* sysdeps/unix/sysv/linux/fxstat64.c: Add conditionals for kernel
without stat64 system call support.
* sysdeps/unix/sysv/linux/fxstatat64.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/statx_cp.c: New file.
* sysdeps/unix/sysv/linux/statx_cp.c: Likewise.
* sysdeps/unix/sysv/linux/statx_cp.h: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/statx_cp.c: Likewise.
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This patch converts the tst-signal-numbers test from shell + awk to
Python.
As with gen-as-const, the point is not so much that shell and awk are
problematic for this code, as that it's useful to build up general
infrastructure in Python for use of a range of code involving
extracting values from C headers. This patch moves some code from
gen-as-const.py to a new glibcextract.py, which also gains functions
relating to listing macros, and comparing the values of a set of
macros from compiling two different pieces of code.
It's not just signal numbers that should have such tests; pretty much
any case where glibc copies constants from Linux kernel headers should
have such tests that the values and sets of constants agree except
where differences are known to be OK. Much the same also applies to
structure layouts (although testing those without hardcoding lists of
fields to test will be more complicated).
Given this patch, another test for a set of macros would essentially
be just a call to glibcextract.compare_macro_consts (plus boilerplate
code - and we could move to having separate text files defining such
tests, like the .sym inputs to gen-as-const, so that only a single
Python script is needed for most such tests). Some such tests would
of course need new features, e.g. where the set of macros changes in
new kernel versions (so you need to allow new macro names on the
kernel side if the kernel headers are newer than the version known to
glibc, and extra macros on the glibc side if the kernel headers are
older). tst-syscall-list.sh could become a Python script that uses
common code to generate lists of macros but does other things with its
own custom logic.
There are a few differences from the existing shell + awk test.
Because the new test evaluates constants using the compiler, no
special handling is needed any more for one signal name being defined
to another. Because asm/signal.h now needs to pass through the
compiler, not just the preprocessor, stddef.h is included as well
(given the asm/signal.h issue that it requires an externally provided
definition of size_t). The previous code defined __ASSEMBLER__ with
asm/signal.h; this is removed (__ASSEMBLY__, a different macro,
eliminates the requirement for stddef.h on some but not all
architectures).
Tested for x86_64, and with build-many-glibcs.py.
* scripts/glibcextract.py: New file.
* scripts/gen-as-const.py: Do not import os.path, re, subprocess
or tempfile. Import glibcexctract.
(compute_c_consts): Remove. Moved to glibcextract.py.
(gen_test): Update reference to compute_c_consts.
(main): Likewise.
* sysdeps/unix/sysv/linux/tst-signal-numbers.py: New file.
* sysdeps/unix/sysv/linux/tst-signal-numbers.sh: Remove.
* sysdeps/unix/sysv/linux/Makefile
($(objpfx)tst-signal-numbers.out): Use tst-signal-numbers.py.
Redirect stderr as well as stdout.
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I have tested that this builds and the resulting program still work.
This was tested on gcc23.fsffrance.org, and for some reason the vdso
there seems unused even when using shared libraries.
[BZ #19767]
* sysdeps/unix/sysv/linux/mips/init-first.c: Remove #ifdef SHARED.
* sysdeps/unix/sysv/linux/mips/libc-vdso.h: Remove #ifdef SHARED.
* sysdeps/unix/sysv/linux/mips/mips32/sysdep.h: Define
ALWAYS_USE_VSYSCALL.
* sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h: Define
ALWAYS_USE_VSYSCALL.
* sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h: Define
ALWAYS_USE_VSYSCALL.
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d_off is the offset of the *next* entry, not the offset of the current
entry.
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Now that powerpc is using separate sysdep dirs for BE vs LE ABI, there is
no need for abilist-pattern any more.
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Since we are expecting the exact "IBT" string, adjust stack buffer size
and scanf format accordingly.
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Add
#include <sched.h>
int getcpu (unsigned int *cpu, unsigned int *node);
to return currently used CPU and NUMA node.
Tested on x86-64, x32 and i686 as well as with build-many-glibcs.py.
* NEWS: Mention getcpu.
* include/sched.h (__getcpu): New libc_hidden_proto.
* manual/resource.texi: Document getcpu.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add getcpu.
* sysdeps/unix/sysv/linux/Versions (GLIBC_2.29): Add getcpu.
* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add getcpu.
* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist:
Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist:
Likewise.
* sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/bits/sched.h (getcpu): New prototype.
* sysdeps/unix/sysv/linux/getcpu.c: New file.
* sysdeps/unix/sysv/linux/tst-skeleton-affinity.c (test_size):
Also check getcpu.
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Along with posix_spawn_file_actions_addchdir,
posix_spawn_file_actions_addfchdir is the subject of a change proposal
for POSIX: <http://austingroupbugs.net/view.php?id=1208>
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I have tested that this builds and the resulting program still work.
The kernel in gcc117 (which I ussed for testing) seems to be missing
https://patchwork.kernel.org/patch/10060431/, so the vdso is never used.
[BZ #19767]
* sysdeps/unix/sysv/linux/arm/init-first.c: Remove #ifdef SHARED.
* sysdeps/unix/sysv/linux/arm/libc-vdso.h: Remove #ifdef SHARED.
* sysdeps/unix/sysv/linux/arm/sysdep.h: Define
ALWAYS_USE_VSYSCALL.
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[BZ #19767]
* sysdeps/unix/sysv/linux/i386/init-first.c: Don't check SHARED.
* sysdeps/unix/sysv/linux/i386/sysdep.h (ALWAYS_USE_VSYSCALL):
New.
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This patch uses posix_spawn on system implementation. On Linux this has
the advantage of much lower memory consumption (usually 32 Kb minimum for
the mmap stack area).
Although POSIX does not require, glibc system implementation aims to be
thread and cancellation safe. The cancellation code is moved to generic
implementation and enabled iff SIGCANCEL is defined (similar on how the
cancellation handler is enabled on nptl-init.c).
Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu,
arm-linux-gnueabihf, and powerpc64le-linux-gnu.
* sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Use
__sigismember instead of sigismember.
* sysdeps/posix/system.c [SIGCANCEL] (cancel_handler_args,
cancel_handler): New definitions.
(CLEANUP_HANDLER, CLEANUP_RESET): Likewise.
(DO_LOCK, DO_UNLOCK, INIT_LOCK, ADD_REF, SUB_REF): Remove.
(do_system): Use posix_spawn instead of fork and execl and remove
reentracy code.
* sysdeps/generic/not-errno.h (__kill_noerrno): New prototype.
* sysdeps/unix/sysv/linux/not-errno.h (__kill_noerrno): Likewise.
* sysdeps/unix/sysv/linux/ia64/system.c: Remove file.
* sysdeps/unix/sysv/linux/s390/system.c: Likewise.
* sysdeps/unix/sysv/linux/sparc/system.c: Likewise.
* sysdeps/unix/sysv/linux/system.c: Likewise.
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[BZ #19767]
* sysdeps/unix/sysv/linux/aarch64/init-first.c: Remove #ifdef SHARED.
* sysdeps/unix/sysv/linux/aarch64/libc-vdso.h: Remove #ifdef SHARED.
* sysdeps/unix/sysv/linux/aarch64/sysdep.h (ALWAYS_USE_VSYSCALL):
Define.
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[BZ #19767]
* sysdeps/unix/sysv/linux/powerpc/init-first.c: Remove #ifdef SHARED.
* sysdeps/unix/sysv/linux/powerpc/libc-vdso.h: Remove #ifdef
SHARED. Include sysdep.h.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Define
ALWAYS_USE_VSYSCALL.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Define
ALWAYS_USE_VSYSCALL.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
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All the required code already existed, and some of it was already
running.
AT_SYSINFO_EHDR is processed if NEED_DL_SYSINFO_DSO is defined, but it
looks like it always is. The call to setup_vdso is also unconditional,
so all that was left to do was setup the function pointers and use
them. This patch just deletes some #ifdef to enable that.
[BZ #19767]
* nptl/Makefile (tests-static): Add tst-cond11-static.
(tests): Likewise.
* nptl/tst-cond11-static.c: New File.
* sysdeps/unix/sysv/linux/Makefile (tests-static): Add
tst-affinity-static.
(tests): Likewise.
* sysdeps/unix/sysv/linux/sysdep-vdso.h: Check USE_VSYSCALL
instead of SHARED.
* sysdeps/unix/sysv/linux/sysdep.h (ALWAYS_USE_VSYSCALL): New.
(USE_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/tst-affinity-static.c: New file.
* sysdeps/unix/sysv/linux/x86/libc-vdso.h: Check USE_VSYSCALL
instead of SHARED.
* sysdeps/unix/sysv/linux/x86_64/init-first.c: Don't check
SHARED.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h (ALWAYS_USE_VSYSCALL):
New.
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The generic kernel-features.h defines __ASSUME_COPY_FILE_RANGE for 4.5
and later kernels. However, for 32-bit Arm binaries running on 64-bit
Arm kernels, the syscall was only wired up in the 4.7 kernel, although
the 32-bit Arm kernel had the syscall from 4.5 onwards. This patch
corrects the Arm kernel-features.h to undefine the macro for
configured minimum kernel versions before 4.7.
Tested (compilation only) with a build-many-glibcs.py build for
arm-linux-gnueabi.
[BZ #23915]
* sysdeps/unix/sysv/linux/arm/kernel-features.h
[__LINUX_KERNEL_VERSION < 0x040700] (__ASSUME_COPY_FILE_RANGE):
Undefine.
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Introduce new pow symbol version that doesn't do SVID compatible error
handling. The standard errno and fp exception based error handling is
inline in the new code and does not have significant overhead.
The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty
w_pow.c and enabled for targets with their own pow implementation or
ifunc dispatch on __ieee754_pow by including math/w_pow.c.
The compatibility symbol version still uses the wrapper with SVID error
handling around the new code. There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).
On targets where previously powl was an alias of pow, now it points to
the compatibility symbol with the wrapper, because it still need the
SVID compatible error handling. This affects NO_LONG_DOUBLE (e.g. arm)
and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well.
The __pow_finite symbol is now an alias of pow. Both __pow_finite and
pow set errno and thus not const functions.
The ia64 asm is changed so the compat and new symbol versions map to the
same address.
On x86_64 #include <math.h> was added before macro definitions that
may affect that header.
Tested with build-many-glibcs.py.
* math/Versions (GLIBC_2.29): Add pow.
* math/w_pow_compat.c (__pow_compat): Change to versioned compat
symbol.
* math/w_pow.c: New file.
* sysdeps/i386/fpu/w_pow.c: New file.
* sysdeps/ia64/fpu/e_pow.S: Add versioned symbols.
* sysdeps/ieee754/dbl-64/e_pow.c (__ieee754_pow): Rename to __pow
and add necessary aliases.
* sysdeps/ieee754/dbl-64/w_pow.c: New file.
* sysdeps/m68k/m680x0/fpu/w_pow.c: New file.
* sysdeps/mach/hurd/i386/libm.abilist: Update.
* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
* sysdeps/x86_64/fpu/multiarch/e_pow-fma.c (__ieee754_pow): Rename to
__pow.
* sysdeps/x86_64/fpu/multiarch/e_pow-fma4.c (__ieee754_pow): Likewise.
* sysdeps/x86_64/fpu/multiarch/e_pow.c (__ieee754_pow): Likewise.
* sysdeps/x86_64/fpu/multiarch/w_pow.c: New file.
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Introduce new log2 symbol version that doesn't do SVID compatible error
handling. The standard errno and fp exception based error handling is
inline in the new code and does not have significant overhead.
The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty
w_log2.c and enabled for targets with their own log2 implementation by
including math/w_log2.c.
The compatibility symbol version still uses the wrapper with SVID error
handling around the new code. There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).
On targets where previously log2l was an alias of log2, now it points to
the compatibility symbol with the wrapper, because it still need the
SVID compatible error handling. This affects NO_LONG_DOUBLE (e.g. arm)
and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well.
The __log2_finite symbol is now an alias of log2. Both __log2_finite
and log2 set errno and thus not const functions.
The ia64 asm is changed so the compat and new symbol versions map to the
same address.
Tested with build-many-glibcs.py.
* math/Versions (GLIBC_2.29): Add log2.
* math/w_log2_compat.c (__log2_compat): Change to versioned compat
symbol.
* math/w_log2.c: New file.
* sysdeps/i386/fpu/w_log2.c: New file.
* sysdeps/ia64/fpu/e_log2.S: Add versioned symbols.
* sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Rename to __log2
and add necessary aliases.
* sysdeps/ieee754/dbl-64/w_log2.c: New file.
* sysdeps/m68k/m680x0/fpu/w_log2.c: New file.
* sysdeps/mach/hurd/i386/libm.abilist: Update.
* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
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Introduce new log symbol version that doesn't do SVID compatible error
handling. The standard errno and fp exception based error handling is
inline in the new code and does not have significant overhead.
The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty
w_log.c and enabled for targets with their own log implementation by
including math/w_log.c.
The compatibility symbol version still uses the wrapper with SVID error
handling around the new code. There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).
On targets where previously logl was an alias of log, now it points to
the compatibility symbol with the wrapper, because it still need the
SVID compatible error handling. This affects NO_LONG_DOUBLE (e.g. arm)
and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well.
The __log_finite symbol is now an alias of log. Both __log_finite and
log set errno and thus not const functions.
The ia64 asm is changed so the compat and new symbol versions map to the
same address.
On x86_64 #include <math.h> was added before macro definitions that may
affect that header.
Tested with build-many-glibcs.py.
* math/Versions (GLIBC_2.29): Add log.
* math/w_log_compat.c (__log_compat): Change to versioned compat
symbol.
* math/w_log.c: New file.
* sysdeps/i386/fpu/w_log.c: New file.
* sysdeps/ia64/fpu/e_log.S: Update.
* sysdeps/ieee754/dbl-64/e_log.c (__ieee754_log): Rename to __log
and add necessary aliases.
* sysdeps/ieee754/dbl-64/w_log.c: New file.
* sysdeps/m68k/m680x0/fpu/w_log.c: New file.
* sysdeps/mach/hurd/i386/libm.abilist: Update.
* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
* sysdeps/x86_64/fpu/multiarch/e_log-avx.c (__ieee754_log): Rename to
__log.
* sysdeps/x86_64/fpu/multiarch/e_log-fma.c (__ieee754_log): Likewise.
* sysdeps/x86_64/fpu/multiarch/e_log-fma4.c (__ieee754_log): Likewise.
* sysdeps/x86_64/fpu/multiarch/e_log.c (__ieee754_log): Likewise.
* sysdeps/x86_64/fpu/multiarch/w_log.c: New file.
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Introduce new exp and exp2 symbol version that don't do SVID compatible
error handling. The standard errno and fp exception based error handling
is inline in the new code and does not have significant overhead.
The double precision wrappers are disabled for sysdeps/ieee754/dbl-64
by using empty w_exp.c and w_exp2.c files, the math/w_exp.c and
math/w_exp2.c files use the wrapper template and can be included by
targets that have their own exp and exp2 implementations or use ifunc
on the glibc internal __ieee754_exp symbol.
The compatibility symbol versions still use the wrapper with SVID error
handling around the new code. There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).
On targets where previously expl and exp2l were aliases of exp and exp2,
now they point to the compatibility symbols with the wrapper, because
they still need the SVID compatible error handling. This affects
NO_LONG_DOUBLE (e.g arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets
as well.
The _finite symbols are now aliases of the standard symbols (they have
no performance advantage anymore). Both the standard symbols and
_finite symbols set errno and thus not const functions.
The ia64 asm is changed so the compat and new symbol versions map to the
same address.
On x86_64 #include <math.h> was added before macro definitions that may
affect that header (the new macro name is __exp instead of __ieee754_exp
which breaks some math.h macros).
Tested with build-many-glibcs.py.
* math/Versions (GLIBC_2.29): Add exp and exp2.
* math/w_exp2_compat.c (__exp2_compat): Change to versioned compat
symbol, handle NO_LONG_DOUBLE and LONG_DOUBLE_COMPAT explicitly.
* math/w_exp_compat.c (__exp_compat): Likewise.
* math/w_exp.c: New file.
* math/w_exp2.c: New file.
* sysdeps/i386/fpu/w_exp.c: New file.
* sysdeps/i386/fpu/w_exp2.c: New file.
* sysdeps/ia64/fpu/e_exp.S: Add versioned symbols.
* sysdeps/ia64/fpu/e_exp2.S: Likewise.
* sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Rename to __exp
and add necessary aliases.
* sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Rename to __exp2
and add necessary aliases.
* sysdeps/ieee754/dbl-64/w_exp.c: New file.
* sysdeps/ieee754/dbl-64/w_exp2.c: New file.
* sysdeps/m68k/m680x0/fpu/w_exp.c: New file.
* sysdeps/m68k/m680x0/fpu/w_exp2.c: New file.
* sysdeps/mach/hurd/i386/libm.abilist: Update.
* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
* sysdeps/x86_64/fpu/multiarch/e_exp-avx.c (__exp1): Remove.
(__ieee754_exp): Rename to __exp.
* sysdeps/x86_64/fpu/multiarch/e_exp-fma.c (__exp1): Remove.
(__ieee754_exp): Rename to __exp.
* sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c (__exp1): Remove.
(__ieee754_exp): Rename to __exp.
* sysdeps/x86_64/fpu/multiarch/e_exp.c (__ieee754_exp): Rename to
__exp.
* sysdeps/x86_64/fpu/multiarch/w_exp.c: New file.
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The __ASSUME_SOCKETCALL macro in kernel-features.h is no longer used
for anything. (It used to be used in defining other macros related to
accept4 / recvmmsg / sendmmsg availability, but the code in that area
was simplified once we could assume a kernel with those features,
whether through a syscall or through socketcall, so allowing those
functions to be handled much like other socket operations, without
requring __ASSUME_SOCKETCALL.) This patch removes that unused macro.
(Note: once we can assume a Linux 4.4 or later kernel, much of the
support for using socketcall at all can be removed from glibc,
although a few functions may need that support in glibc for longer.)
Tested with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/kernel-features.h: Remove comment about
__ASSUME_SOCKETCALL.
* sysdeps/unix/sysv/linux/i386/kernel-features.h
(__ASSUME_SOCKETCALL): Remove.
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
(__ASSUME_SOCKETCALL): Likewise.
* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
(__ASSUME_SOCKETCALL): Likewise.
* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
(__ASSUME_SOCKETCALL): Likewise.
* sysdeps/unix/sysv/linux/s390/kernel-features.h
(__ASSUME_SOCKETCALL): Likewise.
* sysdeps/unix/sysv/linux/sh/kernel-features.h
(__ASSUME_SOCKETCALL): Likewise.
* sysdeps/unix/sysv/linux/sparc/kernel-features.h
(__ASSUME_SOCKETCALL): Likewise.
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The generic kernel-features.h defines __ASSUME_MLOCK2 for 4.4 and
later kernels. However, for 32-bit ARM binaries running on 64-bit ARM
kernels, and for MicroBlaze, the syscall was only wired up in the 4.7
kernel. (32-bit ARM kernels did have the syscall from 4.4 onwards.)
This patch duly arranges for the macro to be undefined for those
architectures for kernels before 4.7.
Tested with build-many-glibcs.py for its ARM and MicroBlaze
configurations.
[BZ #23867]
* sysdeps/unix/sysv/linux/arm/kernel-features.h
[__LINUX_KERNEL_VERSION < 0x040700] (__ASSUME_MLOCK2): Undefine.
* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
[__LINUX_KERNEL_VERSION < 0x040700] (__ASSUME_MLOCK2): Undefine.
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Support for futex_cmpxchg as only been added to 4.20-rc1.
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The SH kernel-features.h undefines __ASSUME_RENAMEAT2 for kernel
versions before 4.8, but fails to undefine __ASSUME_EXECVEAT,
__ASSUME_MLOCK2 and __ASSUME_COPY_FILE_RANGE, although all those
syscalls (and several others) were added for SH in the same Linux
kernel commit (first released in 4.8). This patch adds the proper
undefines of those macros.
Tested with build-many-glibcs.py for its SH configurations.
[BZ #23862]
* sysdeps/unix/sysv/linux/sh/kernel-features.h
[__LINUX_KERNEL_VERSION < 0x040800] (__ASSUME_EXECVEAT): Undefine.
[__LINUX_KERNEL_VERSION < 0x040800] (__ASSUME_MLOCK2): Likewise.
[__LINUX_KERNEL_VERSION < 0x040800] (__ASSUME_COPY_FILE_RANGE):
Likewise.
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23848).
Looking at kernel-features.h files, I saw that SPARC was missing full
information on when it gained separate socket syscalls.
This patch adds such information to the SPARC kernel-features.h. It
also corrects what appear to be bugs in the existing code (that would
cause syscalls to be assumed to be present when not actually present).
Various __ASSUME_* macros, defined by default, were not undefined for
32-bit despite those syscalls only being added for 32-bit in Linux
4.4. Some syscalls were used in the SPARC64 syscalls.list but only
added in 4.4; this was harmless before the __NR_* macros were defined
at all, but once the macros were defined it means a build with
post-4.4 headers would assume the syscalls to be present regardless of
--enable-kernel version. Then, various __ASSUME_* macros were
previously not defined in cases where they could be defined (this part
of the patch is just an optimization, not a bug fix).
Note the observation in a comment in the patch that even the latest
Linux kernel for SPARC does not have getpeername and getsockname
syscalls in the compat syscall table for 32-bit binaries on 64-bit
kernels (so glibc can't assume those syscalls to be present for 32-bit
at all, although the 32-bit syscall table gained them in 4.4).
Tested (compilation only) for SPARC with build-many-glibcs.py.
[BZ #23848]
* sysdeps/unix/sysv/linux/sparc/kernel-features.h [!__arch64__ &&
__LINUX_KERNEL_VERSION < 0x040400] (__ASSUME_SENDMSG_SYSCALL):
Undefine.
[!__arch64__ && __LINUX_KERNEL_VERSION < 0x040400]
(__ASSUME_RECVMSG_SYSCALL): Likewise.
[!__arch64__ && __LINUX_KERNEL_VERSION < 0x040400]
(__ASSUME_SENDTO_SYSCALL): Likewise.
[!__arch64__ && __LINUX_KERNEL_VERSION < 0x040400]
(__ASSUME_ACCEPT_SYSCALL): Undefine under this condition, not just
[!__arch64__].
[!__arch64__ && __LINUX_KERNEL_VERSION < 0x040400]
(__ASSUME_CONNECT_SYSCALL): Likewise.
[!__arch64__ && __LINUX_KERNEL_VERSION < 0x040400]
(__ASSUME_RECVFROM_SYSCALL): Likewise.
[__LINUX_KERNEL_VERSION >= 0x040400] (__ASSUME_BIND_SYSCALL):
Define.
[__LINUX_KERNEL_VERSION >= 0x040400] (__ASSUME_LISTEN_SYSCALL):
Likewise.
[__LINUX_KERNEL_VERSION >= 0x040400]
(__ASSUME_SETSOCKOPT_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list (bind):
Remove.
(listen): Likewise.
(setsockopt): Likewise.
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The #else of two nested #if clauses were identical.
* sysdeps/unix/sysv/linux/sysdep-vdso.h: Simplify an #if #else
#endif.
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
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This patch adds the IN_MASK_CREATE macro from Linux 4.19 to
sys/inotify.h.
Tested for x86_64.
* sysdeps/unix/sysv/linux/sys/inotify.h (IN_MASK_CREATE): New
macro.
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We can use long int on sparcv9, but on sparc64, we must match the int
type used by the kernel (and not long int, as in POSIX).
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To determine whether the default time_t interfaces are 32-bit
and so need conversions, or are 64-bit and so are compatible
with the internal 64-bit type without conversions, a macro
giving the size of the default time_t is also required.
This macro is called __TIMESIZE.
This macro can then be used instead of __WORDSIZE in msq-pad.h
and shm-pad.h files, which in turn allows removing their x86
variants, and in sem-pad.h files but keeping the x86 variant.
This patch was tested by running 'make check' on branch master
then applying this patch and running 'make check' again, and
checking that both 'make check' yield identical results.
This was done on x86_64-linux-gnu and i686-linux-gnu.
* bits/timesize.h: New file.
* stdlib/Makefile (headers): Add bits/timesize.h.
* sysdeps/unix/sysv/linux/bits/msq-pad.h
(__MSQ_PAD_AFTER_TIME): Use __TIMESIZE instead of __WORDSIZE.
* sysdeps/unix/sysv/linux/bits/sem-pad.h
(__SEM_PAD_AFTER_TIME): Likewise.
* sysdeps/unix/sysv/linux/bits/shm-pad.h
(__SHM_PAD_AFTER_TIME): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/msq-pad.h
(__MSQ_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/sem-pad.h
(__SEM_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h
(__SHM_PAD_BEFORE_TIME, __SHM_PAD_BETWEEN_TIME_AND_SEGSZ): Likewise.
* sysdeps/unix/sysv/linux/mips/bits/msq-pad.h
(__MSQ_PAD_AFTER_TIME, __MSQ_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/msq-pad.h
(__MSQ_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/sem-pad.h
(__SEM_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h
(__SHM_PAD_BEFORE_TIME, __SHM_PAD_BETWEEN_TIME_AND_SEGSZ): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/msq-pad.h
(__MSQ_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/sem-pad.h
(__SEM_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h
(__SHM_PAD_BEFORE_TIME): Likewise.
* sysdeps/unix/sysv/linux/x86/bits/msq-pad.h: Delete file.
* sysdeps/unix/sysv/linux/x86/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/timesize.h: New file.
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Linux 4.19 does not add any new syscalls (some existing ones are added
to more architectures); this patch updates the version number in
syscall-names.list to reflect that it's still current for 4.19.
Tested with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/syscall-names.list: Update kernel
version to 4.19.
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* sysdeps/unix/sysv/linux/sparc/init-first.c: New file.
* sysdeps/unix/sysv/linux/sparc/libc-vdso.h: New file.
* sysdeps/unix/sysv/linux/sparc/Makefile: Add dl-vdso to
sysdep_routines in subdir elf.
* sysdeps/unix/sysv/linux/sparc/Versions: Add GLIBC_PRIVATE
version for __vdso_clock_gettime.
* sysdeps/unix/sysv/linux/sparc/sysdep.h (INTERNAL_VSYSCALL_CALL):
Define.
(HAVE_CLOCK_GETTIME_VSYSCALL): Define.
(HAVE_GETTIMEOFDAY_VSYSCALL): Define.
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After my patch to move SHMLBA to its own header, the bits/shm.h
headers for architectures using the Linux kernel still vary in a few
ways: the use of __syscall_ulong_t; whether padding for 32-bit systems
is present before or after time fields, or missing altogether (mips,
x32); whether shm_segsz is before or after the time fields; whether,
if after time fields, there is extra padding before shm_segsz.
This patch arranges for a single header to be used. __syscall_ulong_t
is safe to use everywhere, while bits/shm-pad.h is added with new
macros __SHM_PAD_AFTER_TIME, __SHM_PAD_BEFORE_TIME,
__SHM_SEGSZ_AFTER_TIME and __SHM_PAD_BETWEEN_TIME_AND_SEGSZ to
describe the differences.
Tested for x86_64 and x86, and with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
bits/shm-pad.h.
* sysdeps/unix/sysv/linux/bits/shm.h: Include <bits/shm-pad.h>.
(shmatt_t): Define as __syscall_ulong_t.
(__SHM_PAD_TIME): New macro, depending on [__SHM_PAD_BEFORE_TIME]
and [__SHM_PAD_AFTER_TIME].
(struct shmid_ds): Define time fields using __SHM_PAD_TIME.
Define shm_segsz and associated padding based on
[__SHM_SEGSZ_AFTER_TIME] and [__SHM_PAD_BETWEEN_TIME_AND_SEGSZ].
Use __syscall_ulong_t instead of unsigned long int.
[__USE_MISC] (struct shminfo): Use __syscall_ulong_t instead of
unsigned long int.
[__USE_MISC] (struct shm_info): Likewise.
* sysdeps/unix/sysv/linux/bits/shm-pad.h: New file.
* sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/shm.h: Remove.
* sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/shm.h: Likewise.
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One difference between bits/shm.h headers for architectures using the
Linux kernel is the definition of SHMLBA. This was noted in
<https://sourceware.org/ml/libc-alpha/2018-09/msg00175.html> as a
reason why even a new architecture (C-SKY) might need its own
bits/shm.h; thus, splitting it out of bits/shm.h can allow less
duplication of headers for new architectures.
This patch moves that definition to its own header, bits/shmlba.h, to
allow more sharing of headers between architectures. That move allows
the arm, ia64 and sh variants of bits/shm.h to be removed, as they had
no other significant differences from the generic bits/shm.h; powerpc
and x86 have their own bits/shm.h but do not need to get their own
bits/shmlba.h because they use the same SHMLBA as the generic header.
Other architectures with their own bits/shm.h get their own
bits/shmlba.h without being able to remove their own bits/shm.h until
the generic one has been adapted to be able to handle more
architectures (where, in addition to the differences seen for
bits/msq.h and bits/sem.h, the position of shm_segsz in struct
shmid_ds also depends on the architecture).
Tested for x86_64 and x86, and with build-many-glibcs.py.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
bits/shmlba.h.
* sysdeps/unix/sysv/linux/bits/shm.h: Include <bits/shmlba.h>.
(SHMLBA): Remove macro.
(__getpagesize): Remove function declaration.
* sysdeps/unix/sysv/linux/hppa/bits/shm.h: Include
<bits/shmlba.h>.
(SHMLBA): Remove macro.
* sysdeps/unix/sysv/linux/mips/bits/shm.h: Include
<bits/shmlba.h>.
(SHMLBA): Remove macro.
* sysdeps/unix/sysv/linux/powerpc/bits/shm.h: Include
<bits/shmlba.h>.
(SHMLBA): Remove macro.
(__getpagesize): Remove function declaration.
* sysdeps/unix/sysv/linux/sparc/bits/shm.h: Include
<bits/shmlba.h>.
(SHMLBA): Remove macro.
(__getshmlba): Remove function declaration.
* sysdeps/unix/sysv/linux/x86/bits/shm.h: Include <bits/shmlba.h>.
(SHMLBA): Remove macro.
(__getpagesize): Remove function declaration.
* sysdeps/unix/sysv/linux/arm/bits/shm.h: Remove file.
* sysdeps/unix/sysv/linux/ia64/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/sh/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/bits/shmlba.h: New file.
* sysdeps/unix/sysv/linux/arm/bits/shmlba.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/shmlba.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/shmlba.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/shmlba.h: Likewise.
* sysdeps/unix/sysv/linux/sh/bits/shmlba.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/shmlba.h: Likewise.
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