SA_SIGINFO is actually just another way of expressing what we were
already passing over with struct sigcontext. This just introduces the
SIGINFO interface and fixes the posix values when that interface is
requested by the application.
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.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
1998-07-20 17:09 Ulrich Drepper <drepper@cygnus.com>
* shlib-versions: Remove definition for libSegFault.
* memory.texi: Comment out the relocating allocator description.
* manual/signal.texi: Remove reference to relocating allocator.
* manual/top-menu.texi: Regenerated.
* posix/fnmatch.c: Implement [: :] and change to recognize
^ as negation only when not _POSIXLY_CORRECT.
* sysdeps/generic/glob.c: Add several optimizations.
* posix/glob.h: Undefine __PMT to prevent warnings.
Reported by Roland McGrath.
* posix/regex.c: Define namespace macros only for _LIBC.
* sysdeps/arm/dl-machine.h: Fix typo.
* sysdeps/unix/sysv/sysv4/solaris2/sigpending.c: New file.
* sysdeps/unix/sysv/sysv4/solaris2/sigstack.c: New file.
* sysdeps/unix/sysv/sysv4/solaris2/sigwaitinfo.c: New file.
* sysdeps/unix/sysv/sysv4/solaris2/syscalls.list: Add sigaltstack,
sigpending, sigqueue, and sigtimedwait.
* sysdeps/unix/sysv/sysv4/solaris2/sparc/sparc32/syscall.S: New file.
* timezone/leapseconds: Update from tzdata1998f.
1998-07-18 Mark Kettenis <kettenis@phys.uva.nl>
* stdio/stdio.h [__USE_GNU]: Add prototype for fputs_unlocked.
* stdio/Versions [GLIBC_2.1]: Add fputs_unlocked.
* libio/stdio.h: Fix typo.
1998-07-19 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/mach/hurd/dl-sysdep.c (_dl_sysdep_start): #if 0 out the
magic memobj port arg parsing stuff. Fix it someday when we are ready
to really use it.
(_dl_sysdep_output): New function, modified from _dl_sysdep_error.
(_dl_sysdep_error, _dl_sysdep_message, _dl_sysdep_fatal): Removed.
1998-07-19 Roland McGrath <roland@baalperazim.frob.com>
* stdio/fputs.c: Add fputs_unlocked as weak alias for fputs.
1998-07-19 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/posix/sigsuspend.c: Define __sigsuspend with sigsuspend as
a weak alias.
* sysdeps/mach/hurd/sigsuspend.c: Likewise.
* sysdeps/generic/sigsuspend.c: Likewise.
1998-07-19 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/mach/hurd/i386/sigcontextinfo.h: New file.
1998-07-19 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makerules (map-file): Don't use $(wildcard) to find the
generated version script, instead look in $(version-maps).
($(common-objpfx)libc.so): Only depend on libc.map if versioning
is used.
* extra-lib.mk ($(objpfx)$(lib).so): Only depend on version script
if versioning is used. Don't use $(wildcard) to find the
generated version script, instead look in $(verson-maps).
1998-07-17 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/generic/segfault.c: Rename GET_EIP to GET_PC. Remove
unused function handle.
* sysdeps/generic/sigcontextinfo.h: Rename GET_EIP to GET_PC.
* sysdeps/unix/sysv/linux/i386/sigcontextinfo.h: Likewise.
* debug/catchsegv.sh: Fix argument processing, quoting and various
typos. Put the crash info always in the current directory. Find
program in $PATH if it contains no directory component.
* Makerules (install-lib.so-versioned,
install-lib.so-unversioned): New variables.
(install-lib-nosubdir): Depend on unversioned libs in
slibdir, not libdir.
1998-07-19 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Make-dist (+tsrcs): Remove references to %-map variables and
*.map files. Add Versions in subdirs.
* Makerules (distinfo-vars): Don't write out %-map variables.
1998-07-20 13:55 Ulrich Drepper <drepper@cygnus.com>
* inet/protocols/rwhod.h: Remove definition of _PATH_RWHODIR.
Include <paths.h> instead.
* sysdeps/generic/paths.h: Define _PATH_RWHODIR.
* sysdeps/unix/sysv/linux/paths.h: Likewise.
Reported by Dale Scheetz <dwarf@polaris.net>.
1998-07-17 21:44 Ulrich Drepper <drepper@cygnus.com>
* catgets/open_catalog.c: Strictly check whether catalog file is
larger enough for the data. Reported by Andries.Brouwer@cwi.nl.
