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We stopped adding "Contributed by" or similar lines in sources in 2012
in favour of git logs and keeping the Contributors section of the
glibc manual up to date. Removing these lines makes the license
header a bit more consistent across files and also removes the
possibility of error in attribution when license blocks or files are
copied across since the contributed-by lines don't actually reflect
reality in those cases.
Move all "Contributed by" and similar lines (Written by, Test by,
etc.) into a new file CONTRIBUTED-BY to retain record of these
contributions. These contributors are also mentioned in
manual/contrib.texi, so we just maintain this additional record as a
courtesy to the earlier developers.
The following scripts were used to filter a list of files to edit in
place and to clean up the CONTRIBUTED-BY file respectively. These
were not added to the glibc sources because they're not expected to be
of any use in future given that this is a one time task:
https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc
https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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Signal number is written into the tail of buf, but printed from the
beginning, outputting garbage on the screen. Fix this by printing
from the correct position.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Dmitry V. Levin <ldv@altlinux.org>
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I used these shell commands:
../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")
and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
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The symbol was deprecated by strsignal and its usage imposes issues
such as copy relocations.
Its internal name is changed to __sys_siglist and __sys_sigabbrev to
avoid static linking usage. The compat code is also refactored, since
both Linux and Hurd usage the same strategy: export the same array with
different object sizes.
The libSegfault change avoids calling strsignal on the SIGFAULT signal
handler (the current usage is already sketchy, adding a call that
potentially issue locale internal function is even sketchier).
Checked on x86_64-linux-gnu and i686-linux-gnu. I also run a check-abi
on all affected platforms.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
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This patch refactor sigcontextinfo.h header to use SA_SIGINFO as default
for both gmon and debug implementations. This allows simplify
profil-counter.h on Linux to use a single implementation and remove the
requirements for newer ports to redefine __sigaction/sigaction to use
SA_SIGINFO.
The GET_PC macro is also replaced with a function sigcontext_get_pc that
returns an uintptr_t instead of a void pointer. It allows easier convertion
to integer on ILP32 architecture, such as x32, without the need to suppress
compiler warnings.
The patch also requires some refactor of register-dump.h file for some
architectures (to reflect it is now called from a sa_sigaction instead of
sa_handler signal context).
- Alpha, i386, and s390 are straighfoward to take in consideration the
new argument type.
- ia64 takes in consideration the kernel pass a struct sigcontextt
as third argument for sa_sigaction.
- sparc take in consideration the kernel pass a pt_regs struct
as third argument for sa_sigaction.
- m68k dummy function is removed and the FP state is dumped on
register_dump itself.
- For SH the register-dump.h file is consolidate on a common implementation
and the floating-point state is checked based on ownedfp field.
The register_dump does not change its output format in any affected
architecture.
I checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu,
arm-linux-gnueabihf, sparcv9-linux-gnu, sparc64-linux-gnu, powerpc-linux-gnu,
powerpc64-linux-gnu, and powerpc64le-linux-gnu.
I also checked the libSegFault.so through catchsegv on alpha-linux-gnu,
m68k-linux-gnu and sh4-linux-gnu to confirm the output has not changed.
Adhemerval Zanella <adhemerval.zanella@linaro.org>
Florian Weimer <fweimer@redhat.com>
* debug/segfault.c (install_handler): Use SA_SIGINFO if defined.
* sysdeps/generic/profil-counter.h (__profil_counter): Cast to
uintptr_t.
* sysdeps/generic/sigcontextinfo.h (GET_PC): Rename to
sigcontext_get_pc and return aligned cast to uintptr_t.
* sysdeps/mach/hurd/i386/sigcontextinfo.h (GET_PC): Likewise.
* sysdeps/posix/profil.c (profil_count): Change PC argument to
uintptr_t.
(__profil): Use SA_SIGINFO.
* sysdeps/posix/sprofil.c (profil_count): Change PCP argument to
uintptr_t.
(__sprofil): Use SA_SIGINFO.
* sysdeps/unix/sysv/linux/profil-counter.h: New file.
* sysdeps/unix/sysv/linux/aarch64/profil-counter.h: Remove file.
* sysdeps/unix/sysv/linux/csky/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/i386/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/mips/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/nios2/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/profil-counter.h: Likewise.
* sysdeps/sysv/linux/s390/s390-32/profil-counter.h: Likewise.
* sysdeps/sysv/linux/s390/s390-64/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/sh/profil-counter.h: Likewise.
* sysdeps/unix/sysv/linux/arm/profil-counter.h (__profil_counter):
Assume SA_SIGINFO and use sigcontext_get_pc instead of GET_PC.
* sysdeps/unix/sysv/linux/sparc/profil-counter.h: New file.
* sysdeps/unix/sysv/linux/sparc/sparc64/profil-counter.h: Remove file.
* sysdeps/unix/sysv/linux/sparc/sparc32/profil-counter.h: Likewise.
* sysdpes/unix/sysv/linux/aarch64/sigcontextinfo.h (SIGCONTEXT,
GET_PC, __sigaction, sigaction): Remove defines.
(sigcontext_get_pc): New function.
* sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/arm/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/csky/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/i386/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/mips/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/nios2/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/s390/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/riscv/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/sh/sigcontextinfo.h: Likewise.
* sysdeps/sysv/linux/sparc/sparc32/sigcontextinfo.h: Likewise.
* sysdeps/sysv/linux/sparc/sparc64/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/register-dump.h (register_dump):
Handle CTX argument as ucontext_t.
* sysdeps/unix/sysv/linux/i386/register-dump.h: Likewise.
Likewise.
* sysdeps/unix/sysv/linux/m68k/register-dump.h: Likewise.
* sysdeps/sysv/linux/s390/s390-32/register-dump.h: Likewise.
* sysdeps/sysv/linux/s390/s390-64/register-dump.h: Likewise.
* sysdeps/unix/sysv/linux/sh/register-dump.h: New file.
* sysdeps/unix/sysv/linux/sh/sh4/register-dump.h: Remove File.
* sysdeps/unix/sysv/linux/sh/sh3/register-dump.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/register-dump.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h: Likewise.
* sysdeps/unix/sysv/linux/Makefile (tests-internal): Add
tst-sigcontextinfo-get_pc.
* sysdeps/unix/sysv/linux/tst-sigcontextinfo-get_pc.c: New file.
(CFLAGS-tst-sigcontextinfo-get_pc.c): New rule.
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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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* 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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glibc defines the stack_t type with the tag struct sigaltstack. This
is not permitted by POSIX; sigaltstack is only reserved with file
scope in the namespace of ordinary identifiers, not the tag namespace,
and in the case where stack_t is obtained from ucontext.h rather than
signal.h, it's not reserved with file scope at all.
This patch removes the tag accordingly and updates uses in glibc of
struct sigaltstack. This is similar to the removal of the "struct
siginfo" tag a few years ago: C++ name mangling changes are an
unavoidable consequence. A NEWS item is added to note the changed
mangling. There is inevitably some risk of breaking builds of
anything that relies on the struct sigaltstack name (though the first
few hits I looked at from codesearch.debian.net generally seemed to
involve code that could use the stack_t name conditionally, so
depending on how they determine the conditionals they may work with
glibc not defining the struct tag anyway).
Tested for x86_64 and x86, and with build-many-glibcs.py.
[BZ #21517]
* bits/types/stack_t.h (stack_t): Remove struct tag.
* sysdeps/unix/sysv/linux/bits/types/stack_t.h (stack_t):
Likewise.
* sysdeps/unix/sysv/linux/mips/bits/types/stack_t.h (stack_t):
Likewise.
* debug/segfault.c (install_handler): Use stack_t instead of
struct sigaltstack.
* hurd/hurd/signal.h (struct hurd_sigstate): Likewise.
* hurd/trampoline.c (_hurd_setup_sighandler): Likewise.
* include/signal.h (__sigaltstack): Likwise.
* signal/sigaltstack.c (__sigaltstack): Likewise.
* signal/signal.h (sigaltstack): Likewise.
* sysdeps/mach/hurd/i386/signal-defines.sym
(SIGALTSTACK__SS_SP__OFFSET): Likewise.
(SIGALTSTACK__SS_SIZE__OFFSET): Likewise.
(SIGALTSTACK__SS_FLAGS__OFFSET): Likewise.
* sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Likewise.
* sysdeps/mach/hurd/sigstack.c (sigstack): Likewise.
* sysdeps/unix/sysv/linux/alpha/sys/procfs.h (struct
elf_prstatus): Likewise.
* sysdeps/unix/sysv/linux/hppa/____longjmp_chk.c (CHECK_SP):
Likewise.
* sysdeps/unix/sysv/linux/ia64/sys/procfs.h (struct elf_prstatus):
Likewise.
* sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c (CHECK_SP):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/sys/procfs.h (struct
elf_prstatus): Likewise.
* sysdeps/unix/sysv/linux/sh/sys/procfs.h (struct elf_prstatus):
Likewise.
* sysdeps/unix/sysv/linux/sys/procfs.h (struct elf_prstatus):
Likewise.
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* debug/segfault.c: Fix typos in comments.
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