2004-09-20 Ulrich Drepper <drepper@redhat.com>
* elf/dl-load.c (_dl_map_object_from_fd): Add some error checking.
Reorder code slightly.
* elf/rtld.c (dl_main): No need to check whether l_info[DT_HASH]
is non-null, _dl_setup_hash will do that.
* sysdeps/unisx/sysv/linux/dl-execstack.c: Get protection flag
from memory.
* elf/dl-load.c (_dl_map_object_from_fd): Add PROT_EXEC flag to
__stack_flags.
Update.
* elf/dl-load.c (_dl_map_object): If __RTLD_CALLMAP flag is set,
reset loader before the actual loading.
* elf/dl-open.c (dl_open_worker): If file name contains no path
element determine map of caller. Pass caller map in this case to
_dl_map_object. Set __RTLD_CALLMAP in mode.
* include/dlfcn.h (__RTLD_CALLMAP): Define. [BZ #116]
Patch by Greg Wolodkin <greg@mathworks.com>.
2004-05-25 Ulrich Drepper <drepper@redhat.com>
* nss/digits_dots.c (__nss_hostname_digits_dots): Remove typep and
flags parameter, convert afp to simple int parameter. Adjust code.
typep was never != NULL and flags therefore also unused. *afp is
never modified.
* nss/nsswitch.h: Adjust __nss_hostname_digits_dots prototype.
* nss/getXXbyYY.c: Remove HAVE_TYPE handling. Adjust af parameter
handling for __nss_hostname_digits_dots calls.
* nss/getXXbyYY_r.c: Likewise.
* elf/dl-load.c (_dl_map_object_from_fd): Map DSOs with MAP_DENYWRITE.
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.
2004-01-13 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/dl-execstack.c: Change interface. Add
challenge for caller.
* sysdeps/generic/ldsodefs.h: Change declaration and type of hook
member in rtld_global appropriately.
* elf/dl-support.c: Likewise.
* elf/dl-load.c (_dl_map_object_from_fd): Take additional paramter.
Pass it on to the changed function.
(_dl_map_object): Pass new parameter to _dl_map_object_from_fd.
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.
2003-11-25 Ulrich Drepper <drepper@redhat.com>
* posix/runptests.c (main): Make errors fatal.
* posix/PTESTS: One test in GA135 and GA136 check functionality
which seems not guaranteed.
2003-11-25 Jakub Jelinek <jakub@redhat.com>
* posix/regexec.c (re_search_internal): If prune_impossible_nodes
returned REG_NOMATCH, set match_last to -1. Don't initialize
pmatch[0] needlessly. Fix comment.
(prune_impossible_nodes): Don't segfault on NULL state_log entry.
(set_regs): Fix comment.
* posix/regcomp.c (parse_bracket_exp): Only set has_plural_match
if adding both SIMPLE_BRACKET and COMPLEX_BRACKET.
(build_charclass_op): Set has_plural_match if adding both
SIMPLE_BRACKET and COMPLEX_BRACKET.
* posix/bug-regex11.c (tests): Fix register values for one commented
out test. Add new tests.
* posix/regex_internal.c (re_string_allocate): Make sure init_len
is at least dfa->mb_cur_max.
(re_string_reconstruct): If is_utf8, don't fall back into
re_string_skip_chars just because idx points into a middle of
valid UTF-8 character. Instead, set the wcs bytes which correspond
to the partial character bytes to WEOF.
* posix/regexec.c (re_search_internal): Allocate input.bufs_len + 1
instead of dfa->nodes_len + 1 state_log entries initially.
* posix/bug-regex20.c (main): Uncomment backwards case insensitive
tests.
* include/dlfcn.h (__RTLD_OPENEXEC): Define.
* elf/dl-load.c (_dl_map_object_from_fd): Don't allow loading
executables unless __RTLD_OPENEXEC flag is present.
* elf/rtld.c (dl_main): Pass __RTLD_OPENEXEC flag to
_dl_map_object when loading the executable.
reverse lookup format for IPv6 addresses is using bitstring and
* resolv/ns_name.c: Implement encoding and decoding bitstring in
2003-07-24 Ulrich Drepper <drepper@redhat.com>
* include/link.h (struct link_map): Add l_tls_firstbyte_offset field.
* sysdeps/generic/dl-tls.c [TLS_TCB_AT_TP] (_dl_determine_tlsoffset):
Fix calculation of offsets to take misalignment of first byte in
file into account.
* elf/dl-load.c (_dl_map_object_from_fd): Initialize
l_tls_firstbyte_offset field.
* elf/rtld.c (_dl_start_final, _dl_start, dl_main): Likewise.
* elf/dl-reloc.c (_dl_allocate_static_tls): Change return type to int.
Take l_tls_firstbyte_offset information into account.
(CHECK_STATIS_TLS): _dl_allocate_static_tls can fail now.
* sysdeps/generic/ldsodefs.h: Adjust _dl_allocate_static_tls prototype.
* elf/Makefile: Add rules to build and run tst-tls14.
* elf/tst-tls14.c: New file.
* elf/tst-tlsmod14a.c: New file.
* elf/tst-tlsmod14b.c: New file.
* elf/dl-load.c (_dl_map_object_from_fd): Determine whether there
are holes between the segments. Only call mprotect to set
proection to PROT_NONE if there are some.
* elf/dl-load.c (struct filebuf): Actually use FILEBUF_SIZE.
Update comment.
2003-01-16 Jakub Jelinek <jakub@redhat.com>
* elf/dl-load.c (_dl_map_object_from_fd): Use
GL(dl_tls_dtv_slotinfo_list) != NULL to check whether TLS has
been already initialized.
* malloc/hooks.c [_LIBC && (USE___THREAD || (USE_TLS && !SHARED))]
(malloc_starter, memalign_starter, free_starter): Don't define these.
* malloc/malloc.c [_LIBC && (USE___THREAD || (USE_TLS && !SHARED))]:
Don't declare them either.
* malloc/arena.c (ptmalloc_init) [_LIBC && USE_TLS]: Don't call
__pthread_initialize, so no need to set hooks to *_starter.
(ptmalloc_init_minimal): New function, broken out of ptmalloc_init.
[_LIBC && SHARED && USE_TLS && !USE___THREAD]
(__libc_malloc_pthread_startup): New function.
* malloc/Versions (libc: GLIBC_PRIVATE): New set, add that function.
* malloc/hooks.c (memalign_starter): New function.
* malloc/malloc.c: Declare it.
* malloc/arena.c (save_memalign_hook): New variable.
(ptmalloc_init): Set __memalign_hook to memalign_starter.
* elf/dl-minimal.c (free): Clear the memory.
(calloc): Just call malloc, knowing all memory it returns is cleared.
* sysdeps/generic/dl-tls.c (allocate_dtv): Use calloc instead of
malloc and memset; calloc can avoid the zeroing when redundant.
(_dl_tls_setup): Likewise.
* elf/dl-load.c (decompose_rpath): Likewise.
* sysdeps/generic/libc-tls.c (__libc_setup_tls): Comment out memset
call, since memory from sbrk at startup is already zero.
* elf/rtld.c (_dl_start, dl_main): TLS_INIT_TP macro now returns an
error string for failure, null for success. Update callers.
* sysdeps/generic/libc-tls.c (__libc_setup_tls): Likewise.
* elf/dl-load.c (_dl_map_object_from_fd): Likewise.
members to the end, so a libpthread compiled with !USE_TLS will still
find other members properly.
* sysdeps/i386/i486/bits/string.h (__strcpy_g): Add dummy output
operand for DEST memory. Fix dummy input operand to use SRC.
Reported by Davin McCall <davmac@ozonline.com.au>.
* sysdeps/generic/libc-tls.c (__libc_setup_tls): Account for TCB
alignment when initializing the DTV entry.
* elf/dl-load.c (_dl_map_object_from_fd): If we hit a TLS segment
when TLS has not been set up, try to set it up if we can.
* elf/tst-tls4.c: Revert last change.
* elf/tst-tls5.c: Likewise.
* elf/tst-tls6.c: Likewise.
* elf/tst-tls7.c: Likewise.
* elf/tst-tls8.c: Likewise.
* elf/tst-tls9.c: Likewise.
* sysdeps/generic/dl-tls.c [SHARED] (_dl_tls_setup): New function.
* sysdeps/generic/ldsodefs.h: Declare it.
* elf/Versions (ld: GLIBC_PRIVATE): Add it.
* sysdeps/generic/libc-tls.c (init_slotinfo): New static inline
function, broken out of __libc_setup_tls.
(init_static_tls): Likewise.
(__libc_setup_tls): Call them.
(_dl_tls_setup): New function, uses new subroutines.
* elf/dl-close.c (free_slotinfo): Make argument pointer to pointer.
Clear the pointer when returning true.
(libc_freeres_fn) [SHARED]: If GL(dl_initial_dtv) is null, free the
first element of the slotinfo list too.
* sysdeps/generic/dl-tls.c (_dl_determine_tlsoffset): Define only if
[SHARED].
* sysdeps/generic/ldsodefs.h (_dl_next_tls_modid): Declare as hidden.
(_dl_determine_tlsoffset): Likewise.
* elf/rtld.c (_dl_initial_error_catch_tsd): Renamed from
startup_error_tsd, made global.
(dl_main): Update initialization.
* elf/dl-tsd.c: Likewise.
* sysdeps/generic/ldsodefs.h: Declare it.
* elf/dl-reloc.c (_dl_relocate_object: CHECK_STATIC_TLS): New macro
to signal error if an IE-model TLS reloc resolved to a dlopen'd module.
* sysdeps/i386/dl-machine.h (elf_machine_rel, elf_machine_rela):
Call it after performing TPOFF relocs.
* sysdeps/x86_64/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise.
* elf/dl-conflict.c (CHECK_STATIC_TLS): New macro (no-op).
* elf/dl-close.c (remove_slotinfo): Change asserts so as not to crash
when closing a partially-initialized object.
* elf/dl-load.c (_dl_map_object_from_fd) [! USE_TLS]: Call lose
instead of _dl_fatal_printf when we see PT_TLS.
