2004-01-14 Ulrich Drepper <drepper@redhat.com>
* configure.in: Define HAVE_Z_RELRO if the linker supports -z relro.
* config.h.in: Add entry for HAVE_Z_RELRO.
* include/libc-symbols.h: Define attribute_relro.
* elf/dl-load.c: Add attribute_relro to env_path_list, capstr, ncapstr,
max_capstrlen, and max_dirnamelen definitions.
* elf/rtld.c: Add attribute_relro to _dl_argc, _dl_argv, _dl_skip_args,
load_time, start_time, library_path, preloadlist, version_info,
any_debug.
Remove rtld_total_time. Make it a local variable. Pass pointer to
it to print_statistics. Change print_statistics accordingly.
* sysdeps/generic/dl-sysdep.c: Add attribute_relro to _dl_auxv. Use
attribute_relro instead of explicitly assigning variable to the
.data.rel.ro section for __libc_enable_secure and __libc_stack_end.
* sysdeps/generic/ldsodefs.h: Declare __libc_stack_end, _dl_argc,
_dl_argv, _dl_argv_internal with attribute_relro.
2004-01-09 Bruno Haible <bruno@clisp.org>
* intl/gmo.h (MO_REVISION_NUMBER_WITH_SYSDEP_I): New definition.
* intl/loadmsgcat.c (get_sysdep_segment_value): Handle "I".
(_nl_load_domain): Treat major revision 1 like major revision 0.
2004-01-11 Bruno Haible <bruno@clisp.org>
* stdio-common/vfprintf.c (vfprintf): Disallow the 'I' flag after
width or precision has been seen.
2004-01-08 Bruno Haible <bruno@clisp.org>
* intl/loadmsgcat.c (_nl_load_domain): When a string pair uses a system
dependent segment not known to this version of the library, ignore
the string pair instead of crashing.
2004-01-13 Ulrich Drepper <drepper@redhat.com>
* Makeconfig: Define relro-LDFLAGS if have-z-relro==yes. Add it to
LDFLAGS.so and LDFLAGS-rtld.
(+link): Add relro-LDFLAGS.
* Makeconfig (shlib.lds): Place __libc_subfreeres, __libc_atexit, and
__libc_thread_subfreeres sections after .jcr section.
* config.make.in: Add have-z-relro.
* configure.in: Add check for -z relro option.
* include/link.h (struct link_map): Add relro_addr and relro_size
members.
* elf/dl-load.c (_dl_map_object_from_fd): Recognize PT_GNU_RELRO.
* elf/dl-reloc.c (_dl_relocate_object): At the end, make relro
part of loaded segments read-only.
* elf/elf.h: Define PT_GNU_RELRO.
* elf/rtld.c (_dl_start): Recognize PT_GNU_RELRO of ld.so.
(dl_main): Recognize PT_GNU_RELRO of the application. Call
_dl_debug_initialize and initialize l_info[DT_DEBUG] before
relocations.
2003-12-02 David Mosberger <davidm@hpl.hp.com>
* sysdeps/ia64/elf/initfini.c: Add unwind info.
* sysdeps/ia64/dl-machine.h (elf_machine_matches_host): Mark with
attribute "unused".
(elf_machine_dynamic): Mark with attributes "unused" and "const".
(elf_machine_runtime_setup): Likewise.
* sysdeps/generic/dl-fptr.c (make_fptr_table): Mark with
attribute "always_inline".
* sysdeps/ia64/dl-machine.h (__ia64_init_bootstrap_fdesc_table):
Likewise.
* configure.in: Check whether compiler has libunwind support.
* config.make.in (have-cc-with-libunwind): New variable.
* config.h.in (HAVE_CC_WITH_LIBUNWIND): New macro.
* Makeconfig (gnulib): If have-cc-withh-libunwind is "yes", also
mention -lunwind.
003-11-12 David Mosberger <davidm@hpl.hp.com>
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Define DO_CALL_VIA_BREAK.
Redefine DO_CALL to use vdso if supported, otherwise DO_CALL_VIA_BREAK.
Likewise for DO_INLINE_SYSCALL. Make INTERNAL_SYSCALL use
DO_INLINE_SYSCALL.
* sysdeps/unix/sysv/linux/ia64/vfork.S: Use DO_CALL_VIA_BREAK()
instead of DO_CALL().
* sysdeps/unix/sysv/linux/ia64/clone2.S: Use break directly instead
of DO_CALL().
* sysdeps/unix/sysv/linux/ia64/brk.S (__curbrk): Restructure it
to take advantage of DO_CALL() macro.
* sysdeps/unix/sysv/linux/ia64/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/ia64/getcontext.S: Likewise.
* elf/rtld.c (dl_main): Restrict dl_sysinfo_dso check to first
program header. On ia64, the check failed previously because
there are two program headers.
* sysdeps/generic/s_nexttowardf.c: Likewise.
* math/bug-nexttoward.c: New file.
calling _dl_start, using GOTOFF access.
* configure.in (libc_cv_z_execstack): New check.
* configure: Regenerated.
* config.make.in (have-z-execstack): New variable set by it.
* elf/tst-execstack.c: New file.
* elf/tst-execstack-mod.c: New file.
* elf/tst-execstack-needed.c: New file.
* elf/Makefile (tests-execstack-yes, modules-execstack-yes): New
variables.
(tests, modules-names): Conditionally include them.
(distribute): Add tst-execstack-mod.c here.
($(objpfx)tst-execstack, $(objpfx)tst-execstack.out): New targets.
(LDFLAGS-tst-execstack, LDFLAGS-tst-execstack-mod): New variables.
($(objpfx)tst-execstack-needed): New target.
(LDFLAGS-tst-execstack-needed): New variable.
* sysdeps/generic/ldsodefs.h (struct rtld_global): Add _dl_stack_flags
and _dl_make_stack_executable_hook. Declare _dl_make_stack_executable.
* elf/rtld.c (_rtld_global): Add initializer for _dl_stack_flags.
(dl_main): Reset _dl_stack_flags according to PT_GNU_STACK phdr.
Initialize _dl_make_stack_executable_hook.
* elf/dl-support.c: Define those new variables.
(_dl_non_dynamic_init): Scan phdrs for PT_GNU_STACK.
(_dl_phdr): Fix type.
* elf/dl-load.c (_dl_map_object_from_fd): Grok PT_GNU_STACK phdr and
enable execute permission for the stack if necessary.
* sysdeps/generic/dl-execstack.c: New file.
* elf/Makefile (dl-routines): Add it.
* elf/Versions (ld: GLIBC_PRIVATE): Add _dl_make_stack_executable.
* sysdeps/unix/sysv/linux/dl-execstack.c: New file.
* configure.in: Fix up use of compilation flags to match the build:
For .s files, $ASFLAGS;
For .S files, $CPPFLAGS $ASFLAGS;
For .c files, $CFLAGS $CPPFLAGS;
when linking, add $LDFLAGS.
* configure: Regenerated.
for ".set" assembler support.
* configure: Regenerated.
2003-03-31 Roland McGrath <roland@redhat.com>
* signal/tst-sigset.c: New file.
* signal/Makefile (tests): Add it.
Ignore exit status from diff.
* configure.in (enable_check_abi): Document possible value "warn".
Change default to no for now.
* configure: Regenerated.
* sysdeps/unix/Makefile ($(objpfx)stub-syscalls.c): Emit stub_warning
macro calls and a #include <stub-tag.h> at the end.
* Makerules ($(objpfx)stubs): Tweak sed commands.
* sysdeps/unix/sysv/linux/syscalls.list: Use - rather than EXTRA in
caller column for *xattr syscalls, since they are in sysdeps/generic.
* sysdeps/unix/sysv/linux/i386/setfsuid.c: setfsgid -> setfsuid
* sysdeps/unix/sysv/linux/i386/setfsgid.c: setfsuid -> setfsgid
2003-03-26 Roland McGrath <roland@redhat.com>
* Makerules (check-abi-config): Use /thread instead of /tls when
use-thread and not just use-tls is set.
* Makerules (update-abi): Put quotes around $(update-abi-config).
* elf/Makefile (check-abi): Depend on check-abi-ld.
(update-abi): Depend on update-abi-ld.
* config.make.in (enable-check-abi): New variable from configure.
* configure.in (enable_check_abi): New substituted variable,
controlled by --{enable,disable}-check-abi (default yes).
* configure: Regenerated.
* Makerules [$(enable-check-abi) = yes] (tests): Put this condition
on check-abi dependency.
constraint to permit non-constant BIT argument.
(atomic_bit_test_set): Likewise.
* sysdeps/x86_64/bits/atomic.h (atomic_bit_test_set): Likewise.
(atomic_bit_set): Likewise. Use 1UL in case that BIT might be >= 32.
For quadword case, use "i" constraint if __builtin_constant_p and < 32
or "r" constraint otherwise.
* configure.in: Move AC_PROG_CC and other program-finding before all
the version checks.
* configure: Regenerated.
* configure.in: New check for -g on .S files.
* configure: Regenerated.
* config.make.in (have-cpp-asm-debuginfo): New variable.
* config.h.in (HAVE_CPP_ASM_DEBUGINFO): New #undef.
* Makeconfig (ASFLAGS): New variable, if undefined and
$(have-cpp-asm-debuginfo), take options matching -g% from $(CFLAGS).
* Makerules (compile.S, COMPILE.S): Use $(ASFLAGS).
* configure.in (libc_cv_gcc_dwarf2_unwind_info check): Use libraries
`-lgcc -lgcc_eh -lgcc', not just `-lgcc -lgcc_eh' in link commands for
test leading to libc_cv_gcc_dwarf2_unwind_info=no_registry_needed.
* configure: Regenerated.
* Makefile (distribute): Add it.
* Makerules ($(objpfx)%.dynsym, $(objpfx)%.symlist): New rules.
(tests): Depend on .symlist file for each $(install-lib.so-versioned).
[! subdir] (tests): Depend on libc.symlist.
(generated): Add those files.
* aclocal.m4 (LIBC_PROG_BINUTILS): Check for objdump, set OBJDUMP.
* configure: Regenerated.
* config.make.in (OBJDUMP): New variable, substituted by configure.
* malloc/mcheck.c (struct hdr): New members `block' and `magic2'.
(mallochook, reallochook): Set them up.
(checkhdr): Check HDR->magic2 value.
(freehook): Reset HDR->magic2.
(memalignhook): New static function.
(old_memalign_hook): New static variable.
(mcheck, reallochook): Set __memalign_hook to memalignhook.
* configure.in: Replace AC_CONFIG_HEADER with AC_CONFIG_HEADERS,
add AC_HELP_STRING to all AC_ARG_WITH and AC_ARG_ENABLE macros,
add autoconf quotes to the AC_CONFIG_AUX_DIR macro.
* configure: Regenerated.
and then set $subdirs directly, because the new Autoconf breaks
compatibility in every way imaginable and insists on whining
about usage that worked since the dawn of time.
* configure: Regenerated.
* configure: Regenerated.
* sysdeps/mach/configure.in (MIG): Do the AC_CHECK_TOOL here.
Adding final - argument to all AC_CHECK_HEADER uses for .defs files.
* sysdeps/mach/configure: Regenerated.
* aclocal.m4 (GLIBC_PROVIDES): Add AC_PROVIDE([_AS_TR_SH_PREPARE])
and AC_PROVIDE([_AS_CR_PREPARE]).
* configure.in (AUTOCONF): New check to set it. Set to "no" if the
one found doesn't work on our configure.in.
* configure: Regenerated.
* config.make.in (AUTOCONF): New substituted variable.
* Makefile (autoconf-it-cvs): New canned sequence, broken out of ...
(autoconf-it): ... here, use that instead of defining conditionally.
Use $(AUTOCONF) instead of literal autoconf.
[$(AUTOCONF) != no] (configure, %/configure): Protect these rules
with this condition.
* Make-dist (autoconf-it, configure, %/configure): Copy those changes.
2002-09-14 Ulrich Drepper <drepper@redhat.com>
* include/unistd.h: Declare __exit_thread.
* sysdeps/generic/libc-start.c: Remove dummy_addr.
Wrap call to main in setjmp if HAVE_CANCELBUF is defined.
* sysdeps/unix/sysv/linux/exit-thread.S: New file.
* sysdeps/unix/sysv/linux/_exit.c: New file.
* sysdeps/unix/sysv/linux/i386/_exit.S: New file.
* sysdeps/unix/sysv/linux/Makefile [subdir==posix] (sysdep_routines):
Add exit-thread.
* configure.in: Add dl_iterate_phdr to test using -nostdlib.
