Paul Eggert
2b778ceb40
Update copyright dates with scripts/update-copyrights
...
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
2021-01-02 12:17:34 -08:00
H.J. Lu
5d844e1b72
i386: Enable CET support in ucontext functions
...
1. getcontext and swapcontext are updated to save the caller's shadow
stack pointer and return address.
2. setcontext and swapcontext are updated to restore shadow stack and
jump to new context directly.
3. makecontext is updated to allocate a new shadow stack and set the
caller's return address to the helper code, L(exitcode).
4. Since we no longer save and restore EAX, ECX and EDX in getcontext,
setcontext and swapcontext, we can use them as scratch register slots
to enable CET in ucontext functions.
Since makecontext allocates a new shadow stack when making a new
context and kernel allocates a new shadow stack for clone/fork/vfork
syscalls, we track the current shadow stack base. In setcontext and
swapcontext, if the target shadow stack base is the same as the current
shadow stack base, we unwind the shadow stack. Otherwise it is a stack
switch and we look for a restore token.
We enable shadow stack at run-time only if program and all used shared
objects, including dlopened ones, are shadow stack enabled, which means
that they must be compiled with GCC 8 or above and glibc 2.28 or above.
We need to save and restore shadow stack only if shadow stack is enabled.
When caller of getcontext, setcontext, swapcontext and makecontext is
compiled with smaller ucontext_t, shadow stack won't be enabled at
run-time. We check if shadow stack is enabled before accessing the
extended field in ucontext_t.
Tested on i386 CET/non-CET machines.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2020-02-14 15:15:25 -08:00
H.J. Lu
15eab1e3e8
i386: Don't unnecessarily save and restore EAX, ECX and EDX [BZ# 25262]
...
On i386, since EAX, ECX and EDX are caller-saved, there are no need
to save and restore EAX, ECX and EDX in getcontext, setcontext and
swapcontext. They just need to clear EAX on success. The extra
scratch registers are needed to enable CET.
Tested on i386.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2020-02-01 05:44:55 -08:00
Joseph Myers
d614a75396
Update copyright dates with scripts/update-copyrights.
2020-01-01 00:14:33 +00:00
Paul Eggert
5a82c74822
Prefer https to http for gnu.org and fsf.org URLs
...
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
2019-09-07 02:43:31 -07:00
Joseph Myers
04277e02d7
Update copyright dates with scripts/update-copyrights.
...
* 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.
2019-01-01 00:11:28 +00:00
Joseph Myers
688903eb3e
Update copyright dates with scripts/update-copyrights.
...
* 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.
2018-01-01 00:32:25 +00:00
Joseph Myers
bfff8b1bec
Update copyright dates with scripts/update-copyrights.
2017-01-01 00:14:16 +00:00
Joseph Myers
f7a9f785e5
Update copyright dates with scripts/update-copyrights.
2016-01-04 16:05:18 +00:00
H.J. Lu
7e58ab243d
Call __setcontext with HIDDEN_JUMPTARGET
...
i386 __makecontext should call __setcontext with HIDDEN_JUMPTARGET.
[BZ #18822 ]
* sysdeps/unix/sysv/linux/i386/makecontext.S (__makecontext):
Don't load %ebx when calling __setcontext. Call __setcontext
with HIDDEN_JUMPTARGET.
* sysdeps/unix/sysv/linux/i386/setcontext.S (__setcontext): Add
libc_hidden_def.
2015-08-19 04:41:01 -07:00
Joseph Myers
b168057aaa
Update copyright dates with scripts/update-copyrights.
2015-01-02 16:29:47 +00:00
Allan McRae
d4697bc93d
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
Joseph Myers
568035b787
Update copyright notices with scripts/update-copyrights.
2013-01-02 19:05:09 +00:00
Andreas Schwab
842a39cd1a
Remove unused pseudo_end label
2012-07-25 21:58:17 +02:00
Paul Eggert
59ba27a63a
Replace FSF snail mail address with URLs.
2012-02-09 23:18:22 +00:00
Ulrich Drepper
1ab18a5bfb
Add space inf weak_alias use.
2005-05-26 14:30:51 +00:00
Ulrich Drepper
fee732e531
* intl/Makefile (tst-gettext[45].out): Pass also $(run-program-prefix)
...
as argument to the scripts.
* intl/tst-gettext2.sh: Use mkdir -p instead of test -d + mkdir.
* intl/tst-gettext4.sh: Likewise. Use run_program_prefix argument.
* intl/tst-gettext5.sh: Likewise.
* intl/tst-translit.sh: Add mkdir -p.
* sysdeps/unix/sysv/linux/i386/sysdep.h (SETUP_PIC_REG): Use
.ifndef/.endif to allow use of this macro more than once per .S
file.
(LOAD_PIC_REG): New macro.
* sysdeps/unix/sysv/linux/i386/makecontext.S: Add call frame
information.
* sysdeps/unix/sysv/linux/i386/getcontext.S: Likewise.
* sysdeps/unix/sysv/linux/i386/vfork.S: Likewise.
* sysdeps/i386/fpu/s_asinh.S: Use LOAD_PIC_REG macro. Add call frame
information.
* sysdeps/i386/fpu/e_log10f.S: Likewise.
* sysdeps/i386/fpu/s_expm1.S: Likewise.
* sysdeps/i386/fpu/e_acoshf.S: Likewise.
* sysdeps/i386/fpu/e_log2l.S: Likewise.
* sysdeps/i386/fpu/s_log1pf.S: Likewise.
* sysdeps/i386/fpu/s_lrint.S: Likewise.
* sysdeps/i386/fpu/s_llrint.S: Likewise.
* sysdeps/i386/fpu/s_ilogbf.S: Likewise.
* sysdeps/i386/fpu/s_cbrtl.S: Likewise.
* sysdeps/i386/fpu/s_asinhf.S: Likewise.
* sysdeps/i386/fpu/e_log.S: Likewise.
* sysdeps/i386/fpu/e_atanhf.S: Likewise.
* sysdeps/i386/fpu/s_lrintl.S: Likewise.
* sysdeps/i386/fpu/e_atanhl.S: Likewise.
* sysdeps/i386/fpu/e_scalb.S: Likewise.
* sysdeps/i386/fpu/s_log1p.S: Likewise.
* sysdeps/i386/fpu/s_nearbyintl.S: Likewise.
* sysdeps/i386/fpu/s_frexpl.S: Likewise.
* sysdeps/i386/fpu/s_log1pl.S: Likewise.
* sysdeps/i386/fpu/s_nearbyintf.S: Likewise.
* sysdeps/i386/fpu/s_cbrt.S: Likewise.
* sysdeps/i386/fpu/s_expm1l.S: Likewise.
* sysdeps/i386/fpu/s_lrintf.S: Likewise.
* sysdeps/i386/fpu/e_acosh.S: Likewise.
* sysdeps/i386/fpu/s_cexp.S: Likewise.
* sysdeps/i386/fpu/s_ilogbl.S: Likewise.
* sysdeps/i386/fpu/s_expm1f.S: Likewise.
* sysdeps/i386/fpu/e_powl.S: Likewise.
* sysdeps/i386/fpu/e_powf.S: Likewise.
* sysdeps/i386/fpu/e_scalbf.S: Likewise.
* sysdeps/i386/fpu/e_logl.S: Likewise.
* sysdeps/i386/fpu/e_acoshl.S: Likewise.
* sysdeps/i386/fpu/s_frexp.S: Likewise.
* sysdeps/i386/fpu/e_pow.S: Likewise.
* sysdeps/i386/fpu/e_logf.S: Likewise.
* sysdeps/i386/fpu/e_log2.S: Likewise.
* sysdeps/i386/fpu/s_frexpf.S: Likewise.
* sysdeps/i386/fpu/s_cexpl.S: Likewise.
* sysdeps/i386/fpu/s_llrintf.S: Likewise.
* sysdeps/i386/fpu/s_ilogb.S: Likewise.
* sysdeps/i386/fpu/e_scalbl.S: Likewise.
* sysdeps/i386/fpu/e_atanh.S: Likewise.
* sysdeps/i386/fpu/e_log10.S: Likewise.
* sysdeps/i386/fpu/s_cbrtf.S: Likewise.
* sysdeps/i386/fpu/s_cexpf.S: Likewise.
* sysdeps/i386/fpu/s_llrintl.S: Likewise.
* sysdeps/i386/fpu/e_log10l.S: Likewise.
* sysdeps/i386/fpu/s_nearbyint.S: Likewise.
* sysdeps/i386/fpu/s_asinhl.S: Likewise.
* sysdeps/i386/fpu/e_log2f.S: Likewise.
* sysdeps/i386/addmul_1.S: Various fixes to cfi handling.
* sysdeps/i386/mul_1.S: Likewise.
* sysdeps/i386/strtok.S: Likewise.
* sysdeps/i386/sub_n.S: Likewise.
* sysdeps/i386/submul_1.S: Likewise.
* sysdeps/i386/i586/addmul_1.S: Likewise.
* sysdeps/i386/i586/memcpy.S: Likewise.
* sysdeps/i386/i586/mul_1.S: Likewise.
* sysdeps/i386/i586/rshift.S: Likewise.
* sysdeps/i386/i586/sub_n.S: Likewise.
* sysdeps/i386/i586/submul_1.S: Likewise.
* sysdeps/i386/i686/memcmp.S: Likewise.
* sysdeps/i386/i686/memmove.S: Likewise.
* sysdeps/unix/sysv/linux/i386/clone.S: Likewise.
* sysdeps/unix/sysv/linux/i386/mmap.S: Likewise.
* sysdeps/unix/sysv/linux/i386/mmap64.S: Likewise.
* sysdeps/unix/sysv/linux/i386/setcontext.S: Likewise.
2005-05-04 17:58:13 +00:00
Ulrich Drepper
1ad9da69c6
* sysdeps/i386/add_n.S: Add call frame information.
...
* sysdeps/i386/addmul_1.S: Likewise.
* sysdeps/i386/bsd-setjmp.S: Likewise.
* sysdeps/i386/lshift.S: Likewise.
* sysdeps/i386/memchr.S: Likewise.
* sysdeps/i386/memcmp.S: Likewise.
* sysdeps/i386/mul_1.S: Likewise.
* sysdeps/i386/rawmemchr.S: Likewise.
* sysdeps/i386/rshift.S: Likewise.
* sysdeps/i386/stpncpy.S: Likewise.
* sysdeps/i386/strchr.S: Likewise.
* sysdeps/i386/strchrnul.S: Likewise.
* sysdeps/i386/strcspn.S: Likewise.
* sysdeps/i386/strpbrk.S: Likewise.
* sysdeps/i386/strrchr.S: Likewise.
* sysdeps/i386/strspn.S: Likewise.
* sysdeps/i386/strtok.S: Likewise.
* sysdeps/i386/sub_n.S: Likewise.
* sysdeps/i386/submul_1.S: Likewise.
* sysdeps/i386/elf/bsd-setjmp.S: Likewise.
* sysdeps/i386/i486/strcat.S: Likewise.
* sysdeps/i386/i586/add_n.S: Likewise.
* sysdeps/i386/i586/addmul_1.S: Likewise.
* sysdeps/i386/i586/lshift.S: Likewise.
* sysdeps/i386/i586/memcpy.S: Likewise.
* sysdeps/i386/i586/memset.S: Likewise.
* sysdeps/i386/i586/mul_1.S: Likewise.
* sysdeps/i386/i586/rshift.S: Likewise.
* sysdeps/i386/i586/strchr.S: Likewise.
* sysdeps/i386/i586/strcpy.S: Likewise.
* sysdeps/i386/i586/sub_n.S: Likewise.
* sysdeps/i386/i586/submul_1.S: Likewise.
* sysdeps/i386/i686/add_n.S: Likewise.
* sysdeps/i386/i686/memcmp.S: Likewise.
* sysdeps/i386/i686/memmove.S: Likewise.
* sysdeps/i386/i686/mempcpy.S: Likewise.
* sysdeps/i386/i686/memset.S: Likewise.
* sysdeps/i386/i686/strtok.S: Likewise.
* sysdeps/unix/sysv/linux/i386/clone.S: Likewise.
* sysdeps/unix/sysv/linux/i386/mmap.S: Likewise.
* sysdeps/unix/sysv/linux/i386/mmap64.S: Likewise.
* sysdeps/unix/sysv/linux/i386/posix_fadvise64.S: Likewise.
* sysdeps/unix/sysv/linux/i386/semtimedop.S: Likewise.
* sysdeps/unix/sysv/linux/i386/setcontext.S: Likewise.
* sysdeps/i386/fpu/libm-test-ulps: Adjust for gcc 4.
2005-05-04 06:22:30 +00:00
Ulrich Drepper
a334319f65
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
2004-12-22 20:10:10 +00:00
Jakub Jelinek
0ecb606cb6
2.5-18.1
2007-07-12 18:26:36 +00:00
Ulrich Drepper
a5392bed09
Update.
...
2003-04-05 Roland McGrath <roland@redhat.com>
* sysdeps/unix/sysv/linux/i386/setcontext.S: Rewrite to avoid writing
below the stack pointer even if switching to the same context we are
running right now.
* catgets/gencat.c (read_input_file): Make sure that \n is not
alone on the line before testing for continuation.
* math/test-tgmath.c (compile_test): Initialize c.
2003-04-05 22:03:35 +00:00
Ulrich Drepper
097eca29e8
Update.
...
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Use ENTER_KERNEL instead
of int $0x80.
* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevelmutex.S: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelcond.S: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelmutex.S: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelrwlock.S: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Add support for using
sysenter.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Likewise.
* sysdeps/i386/tls.h: Unconditionally include <dl-sysdep.h>.
2002-12-20 07:12:24 +00:00
Ulrich Drepper
e14b144780
Update.
...
* sysdeps/unix/sysv/linux/i386/getcontext.S: Don't touch the %gs
register so that contexts can be used in different threads.
* sysdeps/unix/sysv/linux/i386/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/i386/swapcontext.S: Likewise.
2001-07-31 20:57:24 +00:00
Andreas Jaeger
41bdb6e20c
Update to LGPL v2.1.
...
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.
2001-07-06 04:58:11 +00:00
Ulrich Drepper
4ee87eccd9
Update.
...
2001-04-07 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/getcontext.S: New file.
* sysdeps/unix/sysv/linux/i386/setcontext.S: New file.
* sysdeps/unix/sysv/linux/i386/makecontext.S: New file.
* sysdeps/unix/sysv/linux/i386/swapcontext.S: New file.
* sysdeps/unix/sysv/linux/i386/ucontext_i.h: New file.
* sysdeps/unix/sysv/linux/i386/Dist: Add ucontext_i.h.
2001-04-07 20:09:42 +00:00