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-rw-r--r--ChangeLog96
-rw-r--r--elf/Makefile28
-rw-r--r--elf/dlsym.c2
-rw-r--r--elf/linux-compat.c40
-rw-r--r--elf/rtld.c76
-rw-r--r--intl/localealias.c6
-rw-r--r--sysdeps/generic/_strerror.c14
-rw-r--r--sysdeps/mach/_strerror.c6
8 files changed, 199 insertions, 69 deletions
diff --git a/ChangeLog b/ChangeLog
index 288513f..79a40ee 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,35 @@
+Tue Nov 7 12:29:46 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * elf/linux-compat.c: New file.
+ * elf/Makefile (distribute): Add linux-compat.c.
+ (generated): Add librtld.so.
+ [$(config-os)=linux*] (extra-objs): Add linux-compat.so.
+ [$(config-os)=linux*] (extra-objs): Add ld-linux.so.1.
+ (librtld.so): New target.
+ (ld.so, ld-linux.so.1): Make from librtld.so.
+
+ * elf/rtld.c (dl_main): Instead of weak call to _dl_compat_init,
+ call our own DT_INIT if we have one (and then clear it).
+ (__dgettext): New weak function.
+
+ * intl/localealias.c (read_alias_file): Avoid sprintf; use memcpy
+ by hand instead.
+
+ * sysdeps/generic/_strerror.c (_strerror_internal): Use _itoa
+ instead of snprintf.
+
+ * sysdeps/mach/_strerror.c (_strerror_internal): Don't write
+ BUF[BUFLEN].
+
+ * elf/rtld.c (rtld_map): New static variable.
+ (_dl_start): Use a differently named local BOOTSTRAP_MAP for the
+ bootstrapping. Then copy data into `rtld_map'.
+ (dl_main): Finish filling in rtld_map and link it into the chain,
+ instead of allocating a new structure.
+ (dl_main): Call _dl_compat_init if it is defined (use weak ref).
+
+ * elf/dlsym.c: Fix last change: move REF out of `doit'.
+
Mon Nov 6 16:20:14 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* elf/dlsym.c: Return the proper value, not just the defining
@@ -75,7 +107,7 @@ Thu Oct 26 23:11:11 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* sysdeps/unix/sysv/linux/i386/sigaction.c: Correct parameter
name usage (new->act, old->oact).
Correct asm statement because of gcc strangeness.
-
+
* sysdeps/i386/i586/strchr.S: Correct typos: cmp -> cmpb.
* sunrpc/clnt_perr.c: Remove declaration of sys_errlist. They
@@ -128,7 +160,7 @@ Thu Oct 26 03:01:22 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* sysdeps/unix/sysv/linux/i386/xstat.S: Likewise.
* sysdeps/unix/sysv/linux/i386/syscall.S: Likewise.
Don't use DO_CALL macro; instead use lower level macros for better
- control.
+ control.
* sysdeps/unix/sysv/linux/sigaction.h: New file.
* sysdeps/unix/sysv/linux/sigaction.S: File removed.
@@ -190,7 +222,7 @@ Wed Oct 18 03:33:22 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
(PSEUDO): Use it before jumping to syscall_error.
* sysdeps/unix/i386/sysdep.S [! PIC]: Don't find GOT address;
expect it in %ebx on entry. Pop old %ebx value off stack after
- using it.
+ using it.
* signal/signal.h [__USE_BSD] (_sys_siglist, sys_siglist): Declare
them.
@@ -219,7 +251,7 @@ Tue Oct 17 01:21:21 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* hurd/hurdsock.c: Include stdio-common/_itoa.h instead of
stdio/_itoa.h.
* hurd/hurdlookup.c: Likewise.
-
+
* hurd/hurd/signal.h: Declare hurd_preempt_signals and
hurd_unpreempt_signals.
@@ -346,10 +378,10 @@ Sun Oct 15 21:04:13 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
(__hurd_file_name_lookup, __hurd_file_name_lookup_retry,
__hurd_file_name_split): Rewritten to take callback functions for
using any needed init or dtable port, instead of passing in crdir
- and cwdir ports.
+ and cwdir ports.
(__file_name_lookup, __file_name_split): Use new calling
convention; pass _hurd_ports_use and __getdport as the callback
- functions.
+ functions.
* sysdeps/mach/hurd/chroot.c: Use __file_name_lookup_under instead
of __hurd_file_name_lookup.
@@ -438,7 +470,7 @@ Tue Oct 10 23:08:53 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* MakeTAGS (all-dirs): Omit CVS directories.
Specify vpath directives to find source files in $(all-dirs).
(sources, headers): Append sources and headers from $(all-dist) to
- these.
+ these.
(all-dist): Filter them out of this.
(all-headers, all-sources): Use $(shell find ...) instead of
$(wildcard ...).
@@ -459,7 +491,7 @@ Mon Oct 9 02:54:14 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
(rtld-installed-name): New variable.
* elf/Makefile (install-lib): Variable removed.
(install-others): Define this instead, to
- $(libdir)(rtld-installed-name).
+ $(libdir)(rtld-installed-name).
($(libdir)(rtld-installed-name)): New target; install from ld.so.
* elf/ldd.sh.in: New file.
@@ -506,7 +538,7 @@ Fri Sep 29 03:43:51 1995 Paul Eggert <eggert@twinsun.com>
* time/mktime.c (__mon_yday): New variable; replaces `__mon_lengths'.
time/offtime.c (__offtime), time/tzset.c (compute_change): Use it.
-
+
* time/offtime.c (__offtime): Remove useless assignment
`tp->tm_isdst = -1'.
@@ -602,8 +634,8 @@ Thu Sep 28 13:05:54 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
Thu Sep 28 09:20:04 1995 Ulrich Drepper <drepper@gnu.ai.mit.edu>
* stdlib/strtod.c (STRTOF): Fix handling of numbers with lots of
- leading zeroes.
-
+ leading zeroes.
+
Wed Sep 27 00:27:25 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/mach/hurd/getcwd.c (__getcwd): Renamed from getcwd.
@@ -625,7 +657,7 @@ Wed Sep 27 00:27:25 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/unix/i386/sysdep.h [HAVE_ELF] (ASM_TYPE_DIRECTIVE):
Don't use `type' for arg name, since we are using it as a keyword
- in the rhs.
+ in the rhs.
* sysdeps/unix/configure.in: Check for syscalls getpriority,
setpriority, getrlimit, setrlimit.
@@ -773,7 +805,7 @@ Thu Sep 21 00:03:53 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* Makerules (build-shlib): Use $(@F:lib%.so=%) in place of
$(notdir $*), so it wins for the explicit libc.so rule as well as the
- pattern rule.
+ pattern rule.
* sysdeps/stub/sys/sem_buf.h (union semun): New type.
@@ -967,7 +999,7 @@ Sat Sep 16 17:47:19 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* sysdeps/mach/_strerror.c: Change for new interface with three
arguments.
* stdio/perror.c, stdio/vfprintf.c: Callers changed.
-
+
* sysdeps/mach/hurd/ttyname_r.c: New file. Reentrant version.
* sysdeps/posix/ttyname_r.c: New file. Reentrant version.
* sysdeps/stub/ttyname_r: New file. Define as dummy function.
@@ -1100,7 +1132,7 @@ Fri Sep 8 16:32:12 1995 Ulrich Drepper <drepper@gnu.ai.mit.edu>
sysdeps/unix/sysv/linux/sys/timex.h:
New Linux/ELF specific, architecture independent header files.
* sysdeps/unix/sysv/sysv4/linux: Tree removed.
-
+
Thu Sep 7 17:05:13 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* stdlib/msort.c (msort_with_tmp): Fixed alignment test. B1 and
@@ -1237,7 +1269,7 @@ Mon Aug 21 16:37:09 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/i386/dl-machine.h (elf_machine_rel): Grok R_386_NONE
relocs, and do nothing. Why the linker generates them we may
- never know.
+ never know.
Thu Aug 17 16:18:38 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
@@ -1261,7 +1293,7 @@ Thu Aug 17 16:18:38 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/mach/hurd/fork.c (_hurd_fork_locks): Variable removed.
Instead, declare with `symbol_set_declare'.
- (fork): Use symbol_set_* macros for _hurd_fork_locks.
+ (fork): Use symbol_set_* macros for _hurd_fork_locks.
Use SS->thread instead of __mach_thread_self (). Suspend all
other threads during task_create and port copying.
@@ -1520,12 +1552,12 @@ Sat Jul 22 01:56:03 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
ASM_TYPE_DIRECTIVE.
(ASM_TYPE_DIRECTIVE): New macro; defined using `.type' #ifdef ELF.
- * sysdeps/unix/sysv/sysv4/linux/i386/sysdep.S (__syscall_error):
+ * sysdeps/unix/sysv/sysv4/linux/i386/sysdep.S (__syscall_error):
Rewritten, #include'ing unix/i386/sysdep.S for most of the code.
* sysdeps/unix/i386/sysdep.S [PIC]: Store into `errno' through the GOT.
* configure.in (os=linux*): Use unix/sysv/sysv4 for $base_os,
- instead of unix/sysv.
+ instead of unix/sysv.
* sysdeps/unix/sysv/linux/{accept,connect,getsockname,rename,
socketpair,waitpid,bind,getpeername,listen,setsid,wait4}.S: Moved
to new directory sysdeps/unix/sysv/sysv4/linux.
@@ -1863,9 +1895,9 @@ Tue May 9 01:26:52 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
variable to FORCE in this case, to force a rebuild of sysd-rules.
(sysd-rules): Depend on $(sysd-rules-force).
Write into the file sysd-rules-sysdirs:=$(sysdirs).
-
+
* Makerules (LDFLAGS-c.so): Change ld option -interp to
- -dynamic-linker.
+ -dynamic-linker.
* Makerules (do-install-program): New canned sequence.
(install-bin, install-sbin): Use it.
@@ -1950,7 +1982,7 @@ Tue May 2 01:52:58 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/mach/hurd/i386/init-first.c: New file.
* sysdeps/i386/init-first.c: New file.
* sysdeps/stub/init-first.c: New file.
-
+
Mon May 1 18:48:30 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* Makerules (LDFLAGS-c.so): Add -interp and -e switches to make
@@ -2550,7 +2582,7 @@ Mon Mar 13 01:48:16 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* stdio/printf_fp.c (NDEBUG): Define this to disable assert.
Don't include <stdarg.h>.
- (__printf_fp): Last arg ARGS is now `const void **const';
+ (__printf_fp): Last arg ARGS is now `const void **const';
dereference ARGS[0] instead of using va_arg.
* locale/setlocale.c: In LC_ALL case, initialize CATEGORY before
@@ -2729,7 +2761,7 @@ Wed Mar 8 13:38:13 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
time/ialloc.c: Code and data updated from ADO's 95b.
* time/emkdir.c: File removed.
* time/Makefile (distribute, extra-objs, zic): Omit it.
-
+
* time/localtime.c: Deansideclized. Never #define __tzname et al
to non-__ names.
@@ -2769,7 +2801,7 @@ Sun Mar 5 19:40:13 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* ctype/ctype.h (_IS*): Use independent bits for all but _ISalnum.
* ctype/ctype-info.c: For initial tables, use
_nl_C_LC_CTYPE_{class,toupper,tolower} constant tables defined in
- locale/C-ctype.c.
+ locale/C-ctype.c.
* locale/C-ctype.c, locale/C-messages.c: New files.
* locale/C-monetary.c, locale/C-numeric.c, locale/C-time.c:
Default "C" locale data updated for new locale system.
@@ -3280,7 +3312,7 @@ Mon Feb 6 18:34:40 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
Don't expect _hurd_self_sigstate to lock it. Fix critical section
locking.
* hurd/hurd-raise.c: Likewise.
- * sysdeps/mach/hurd/sigsuspend.c: Likewise.
+ * sysdeps/mach/hurd/sigsuspend.c: Likewise.
* sysdeps/mach/hurd/sigpending.c: Likewise.
* sysdeps/mach/hurd/sigaltstack.c: Likewise.
* sysdeps/mach/hurd/sigaction.c: Likewise.
@@ -3290,7 +3322,7 @@ Mon Feb 6 18:34:40 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/mach/hurd/ioctl.c: Likewise.
* sysdeps/mach/hurd/fork.c: Likewise.
* sysdeps/mach/hurd/i386/sigreturn.c: Likewise.
- * sysdeps/mach/hurd/mips/sigreturn.c: Likewise.
+ * sysdeps/mach/hurd/mips/sigreturn.c: Likewise.
* sysdeps/mach/hurd/alpha/sigreturn.c: Likewise.
* hurd/hurdmsg.c (get_int): Likewise.
@@ -3874,7 +3906,7 @@ Sat Jan 21 08:08:58 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/unix/common/__getgrps.S: Likewise.
* sysdeps/mach/hurd/__getgrps.c: Likewise.
* sysdeps/stub/__gethstnm.c: Renamed to gethostname.c; added weak
- alias gethostname.
+ alias gethostname.
* sysdeps/unix/inet/__gethstnm.S: Likewise.
* sysdeps/unix/sysv/__gethstnm.c: Likewise.
* sysdeps/unix/sysv/sysv4/__gethstnm.c: Likewise.
@@ -4008,11 +4040,11 @@ Sat Jan 21 08:08:58 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/unix/bsd/__setgid.c: Likewise.
* sysdeps/mach/hurd/__setgid.c: Likewise.
* sysdeps/stub/__setitmr.c: Renamed to setitmr.c; added weak alias
- setitmr
+ setitmr
* sysdeps/unix/common/__setitmr.S: Likewise.
* sysdeps/mach/hurd/__setitmr.c: Likewise.
* sysdeps/stub/__setpgrp.c: Renamed to setpgrp.c; added weak alias
- setpgrp
+ setpgrp
* sysdeps/unix/sysv/sysv4/__setpgrp.c: Likewise.
* sysdeps/unix/sysv/sco3.2.4/__setpgrp.c: Likewise.
* sysdeps/unix/sysv/irix4/__setpgrp.S: Likewise.
@@ -4352,7 +4384,7 @@ Tue Jan 17 03:16:47 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
if any are successful.
* hurd/hurdmsg.c: Prepend `msg_' to all RPC names.
- (_S_msg_get_exec_flags, _S_msg_set_exec_flags,
+ (_S_msg_get_exec_flags, _S_msg_set_exec_flags,
_S_msg_set_some_exec_flags, _S_msg_clear_some_exec_flags): New
functions.
(_S_io_select_done, _S_dir_changed, _S_file_changed): Stubs removed.
@@ -4374,7 +4406,7 @@ Tue Jan 17 03:16:47 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* hurd/hurdsig.c (post_reply): Take new arg UNTRACED; if nonzero,
use sig_post_untraced_reply. All callers changed.
- (abort_thread, abort_rpcs): Take same new arg and pass it through.
+ (abort_thread, abort_rpcs): Take same new arg and pass it through.
All callers changed.
(_hurd_internal_post_signal): Take new arg UNTRACED.
If zero and process is traced, stop with SIGNO as stop signal. If
diff --git a/elf/Makefile b/elf/Makefile
index 21d2fc5..314289b 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -31,24 +31,42 @@ libdl-inhibit-o = $(filter-out .so,$(object-suffixes)) # Build only shared.
rtld-routines := rtld $(addprefix dl-,load lookup object reloc \
runtime sysdep error init fini)
distribute = $(rtld-routines:=.c) dynamic-link.h do-rel.h \
- soinit.c sofini.c ldd.sh.in
+ soinit.c sofini.c ldd.sh.in linux-compat.c
include ../Makeconfig
ifeq (yes,$(build-shared))
extra-objs = $(rtld-routines:=.so) soinit.so sofini.so
+generated = librtld.so
install-others = $(libdir)/$(rtld-installed-name)
install-bin = ldd
+
+ifneq (,$(filter linux%,$(config-os)))
+extra-objs += linux-compat.so
+install-lib += ld-linux.so.1
+endif
endif
include ../Rules
-$(objpfx)ld.so: $(rtld-routines:%=$(objpfx)%.so) \
- $(patsubst %,$(common-objpfx)lib%_pic.a,\
- elf c $(LDLIBS-c.so:-l%=%))
- $(LINK.o) -nostdlib -nostartfiles -shared -o $@ \
+
+# Link together the dynamic linker into a single relocatable object.
+# We use this to produce both the ABI-compliant and Linux-compatible
+# dynamic linker shared objects below.
+$(objpfx)librtld.so: $(rtld-routines:%=$(objpfx)%.so) \
+ $(patsubst %,$(common-objpfx)lib%_pic.a,\
+ elf c $(LDLIBS-c.so:-l%=%))
+ $(LINK.o) -nostdlib -nostartfiles -r -o $@ \
'-Wl,-(' $^ -lgcc '-Wl,-)'
+$(objpfx)ld.so $(objpfx)ld-linux.so.1: $(objpfx)librtld.so
+ $(LINK.o) -nostdlib -nostartfiles -shared -o $@ $^
+
+# The Linux-compatible dynamic linker shared object is just the same
+# with one object file of compatibility initialization code added.
+$(objpfx)ld-linux.so.1: $(objpfx)linux-compat.so
+
+
$(objpfx)libdl.so: $(objpfx)libdl_pic.a $(common-objpfx)libc.so $(objpfx)ld.so
$(patsubst %/,cd %;,$(objpfx)) \
$(LINK.o) -shared -o $(@:$(objpfx)%=%) \
diff --git a/elf/dlsym.c b/elf/dlsym.c
index 8277ca3..0441e54 100644
--- a/elf/dlsym.c
+++ b/elf/dlsym.c
@@ -29,10 +29,10 @@ dlsym (void *handle, const char *name)
struct link_map *map = handle;
struct link_map *real_next;
Elf32_Addr loadbase;
+ const Elf32_Sym *ref = NULL;
int lose;
void doit (void)
{
- const Elf32_Sym *ref = NULL;
loadbase = _dl_lookup_symbol (name, &ref, map, map->l_name, 1);
}
diff --git a/elf/linux-compat.c b/elf/linux-compat.c
new file mode 100644
index 0000000..ed1595e
--- /dev/null
+++ b/elf/linux-compat.c
@@ -0,0 +1,40 @@
+/* Initializer for Linux-compatible dynamic linker `/lib/ld-linux.so.1'.
+Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <link.h>
+#include <stdlib.h>
+
+/* This function will be the DT_INIT initializer for the ld-linux.so.1
+ shared object. This is called from rtld.c before shlib initializers.
+
+ The old Linux ELF startup code expects the dynamic linker to magically
+ call atexit to arrange for shared object finalizers to run. (The
+ ABI-compliant startup code does this itself.) We build a compatible
+ version of the dynamic linker to install as /lib/ld-linux.so.1, the
+ name old Linux ELF binaries use. */
+
+void
+_init (void)
+{
+ const Elf32_Sym *ref = NULL;
+ Elf32_Addr loadbase = _dl_lookup_symbol ("atexit", &ref, _dl_loaded,
+ "<ld-linux.so.1 initialization>",
+ 1);
+ (*(__typeof (atexit) *) (loadbase + ref->st_value)) (&_dl_fini);
+}
diff --git a/elf/rtld.c b/elf/rtld.c
index 19f5439..9a822a8 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -50,22 +50,24 @@ static void dl_main (const Elf32_Phdr *phdr,
Elf32_Word phent,
Elf32_Addr *user_entry);
+static struct link_map rtld_map;
+
Elf32_Addr
_dl_start (void *arg)
{
- struct link_map rtld_map;
+ struct link_map bootstrap_map;
/* Figure out the run-time load address of the dynamic linker itself. */
- rtld_map.l_addr = elf_machine_load_address ();
+ bootstrap_map.l_addr = elf_machine_load_address ();
/* Read our own dynamic section and fill in the info array.
Conveniently, the first element of the GOT contains the
offset of _DYNAMIC relative to the run-time load address. */
- rtld_map.l_ld = (void *) rtld_map.l_addr + *elf_machine_got ();
- elf_get_dynamic_info (rtld_map.l_ld, rtld_map.l_info);
+ bootstrap_map.l_ld = (void *) bootstrap_map.l_addr + *elf_machine_got ();
+ elf_get_dynamic_info (bootstrap_map.l_ld, bootstrap_map.l_info);
#ifdef ELF_MACHINE_BEFORE_RTLD_RELOC
- ELF_MACHINE_BEFORE_RTLD_RELOC (rtld_map.l_info);
+ ELF_MACHINE_BEFORE_RTLD_RELOC (bootstrap_map.l_info);
#endif
/* Relocate ourselves so we can do normal function calls and
@@ -77,8 +79,8 @@ _dl_start (void *arg)
bootstrapping, so it must anti-perform each bootstrapping relocation
before applying the final relocation when ld.so is linked in as
normal a shared library. */
- rtld_map.l_type = lt_library;
- ELF_DYNAMIC_RELOCATE (&rtld_map, 0, NULL);
+ bootstrap_map.l_type = lt_library;
+ ELF_DYNAMIC_RELOCATE (&bootstrap_map, 0, NULL);
/* Now life is sane; we can call functions and access global data.
@@ -86,7 +88,12 @@ _dl_start (void *arg)
the operating system's program loader where to find the program
header table in core. */
- dl_r_debug.r_ldbase = rtld_map.l_addr; /* Record our load address. */
+
+ /* Transfer data about ourselves to the permanent link_map structure. */
+ rtld_map.l_addr = bootstrap_map.l_addr;
+ rtld_map.l_ld = bootstrap_map.l_ld;
+ memcpy (rtld_map.l_info, bootstrap_map.l_info, sizeof rtld_map.l_info);
+
/* Call the OS-dependent function to set up life so we can do things like
file access. It will call `dl_main' (below) to do all the real work
@@ -122,9 +129,9 @@ dl_main (const Elf32_Phdr *phdr,
itself! This means someone ran ld.so as a command. Well, that
might be convenient to do sometimes. We support it by
interpreting the args like this:
-
+
ld.so PROGRAM ARGS...
-
+
The first argument is the name of a file containing an ELF
executable we will load and run with the following arguments.
To simplify life here, PROGRAM is searched for using the
@@ -228,8 +235,14 @@ of this helper program; chances are you did not intend to run this program.\n",
will set up later to communicate with the debugger. */
l->l_info[DT_DEBUG]->d_un.d_ptr = (Elf32_Addr) &dl_r_debug;
- l = _dl_new_object ((char *) interpreter_name, interpreter_name,
- lt_interpreter);
+ /* Put the link_map for ourselves on the chain so it can be found by
+ name. */
+ rtld_map.l_name = (char *) rtld_map.l_libname = interpreter_name;
+ rtld_map.l_type = lt_interpreter;
+ while (l->l_next)
+ l = l->l_next;
+ l->l_next = &rtld_map;
+ rtld_map.l_prev = l;
/* Now process all the DT_NEEDED entries and map in the objects.
Each new link_map will go on the end of the chain, so we will
@@ -248,16 +261,13 @@ of this helper program; chances are you did not intend to run this program.\n",
l->l_deps_loaded = 1;
}
- l = _dl_loaded->l_next;
- while (l->l_type != lt_interpreter)
- l = l->l_next;
- if (l->l_opencount == 0)
+ if (rtld_map.l_opencount == 0)
{
/* No DT_NEEDED entry referred to the interpreter object itself.
Remove it from the maps we will use for symbol resolution. */
- l->l_prev->l_next = l->l_next;
- if (l->l_next)
- l->l_next->l_prev = l->l_prev;
+ rtld_map.l_prev->l_next = rtld_map.l_next;
+ if (rtld_map.l_next)
+ rtld_map.l_next->l_prev = rtld_map.l_prev;
}
lazy = !_dl_secure && *(getenv ("LD_BIND_NOW") ?: "") == '\0';
@@ -276,6 +286,7 @@ of this helper program; chances are you did not intend to run this program.\n",
/* Tell the debugger where to find the map of loaded objects. */
dl_r_debug.r_version = 1 /* R_DEBUG_VERSION XXX */;
+ dl_r_debug.r_ldbase = rtld_map.l_addr; /* Record our load address. */
dl_r_debug.r_map = _dl_loaded;
dl_r_debug.r_brk = (Elf32_Addr) &_dl_r_debug_state;
@@ -301,6 +312,19 @@ of this helper program; chances are you did not intend to run this program.\n",
_exit (0);
}
+
+ if (rtld_map.l_info[DT_INIT])
+ {
+ /* Call the initializer for the compatibility version of the
+ dynamic linker. There is no additional initialization
+ required for the ABI-compliant dynamic linker. */
+
+ (*(void (*) (void)) (rtld_map.l_addr +
+ rtld_map.l_info[DT_INIT]->d_un.d_ptr)) ();
+
+ /* Clear the field so a future dlopen won't run it again. */
+ rtld_map.l_info[DT_INIT] = NULL;
+ }
}
const char *errstring;
const char *errobj;
@@ -318,13 +342,25 @@ of this helper program; chances are you did not intend to run this program.\n",
the DT_INIT functions and then *USER_ENTRY. */
}
-/* This function exists solely to have a breakpoint set on it by the
+/* This function exists solely to have a breakpoint set on it by the
debugger. */
void
_dl_r_debug_state (void)
{
}
+/* Define our own stub for the localization function used by strerror.
+ English-only in the dynamic linker keeps it smaller. */
+
+char *
+__dgettext (const char *domainname, const char *msgid)
+{
+ assert (domainname == _libc_intl_domainname);
+ return (char *) msgid;
+}
+weak_symbol (__dgettext)
+weak_alias (__dgettext, dgettext)
+
#ifndef NDEBUG
/* Define (weakly) our own assert failure function which doesn't use stdio.
diff --git a/intl/localealias.c b/intl/localealias.c
index 716657c..fc3bc12 100644
--- a/intl/localealias.c
+++ b/intl/localealias.c
@@ -150,9 +150,11 @@ read_alias_file (fname, fname_len)
FILE *fp;
char *full_fname;
size_t added;
+ static const char aliasfile[] = "/locale.alias";
- full_fname = (char *) alloca (fname_len + sizeof ("/locale.alias"));
- sprintf (full_fname, "%.*s/locale.alias", fname_len, fname);
+ full_fname = (char *) alloca (fname_len + sizeof aliasfile);
+ memcpy (full_fname, fname, fname_len);
+ memcpy (&full_fname[fname_len], aliasfile, sizeof aliasfile);
fp = fopen (full_fname, "r");
if (fp == NULL)
diff --git a/sysdeps/generic/_strerror.c b/sysdeps/generic/_strerror.c
index 72ebb21..569f701 100644
--- a/sysdeps/generic/_strerror.c
+++ b/sysdeps/generic/_strerror.c
@@ -18,6 +18,7 @@ Cambridge, MA 02139, USA. */
#include <stdio.h>
#include <string.h>
+#include "../stdio-common/_itoa.h"
#ifndef HAVE_GNU_LD
#define _sys_errlist sys_errlist
@@ -31,13 +32,14 @@ _strerror_internal (errnum, buf, buflen)
char *buf;
size_t buflen;
{
- if (errnum < 0 || errnum > _sys_nerr)
+ if (errnum < 0 || errnum >= _sys_nerr)
{
- int len = __snprintf (buf, buflen, _("Unknown error %d"), errnum);
- if (len < 0)
- return NULL;
- buf[len - 1] = '\0';
- return buf;
+ const char *unk = _("Unknown error ");
+ const size_t unklen = strlen (unk);
+ char *p = buf + buflen;
+ *--p = '\0';
+ p = _itoa (errnum, p, 10, 0);
+ return memcpy (p - unklen, unk, unklen);
}
return (char *) _(_sys_errlist[errnum]);
diff --git a/sysdeps/mach/_strerror.c b/sysdeps/mach/_strerror.c
index 82d83a0..8b32f05 100644
--- a/sysdeps/mach/_strerror.c
+++ b/sysdeps/mach/_strerror.c
@@ -26,7 +26,7 @@ Cambridge, MA 02139, USA. */
char *
_strerror_internal (int errnum, char *buf, size_t buflen)
{
- int system;
+ int system;
int sub;
int code;
const struct error_system *es;
@@ -43,7 +43,7 @@ _strerror_internal (int errnum, char *buf, size_t buflen)
const char *unk = _("Error in unknown error system: ");
const size_t unklen = strlen (unk);
char *p = buf + buflen;
- *p-- = '\0';
+ *--p = '\0';
p = _itoa (errnum, p, 16, 1);
return memcpy (p - unklen, unk, unklen);
}
@@ -59,7 +59,7 @@ _strerror_internal (int errnum, char *buf, size_t buflen)
const size_t unklen = strlen (unk);
char *p = buf + buflen;
size_t len = strlen (es->subsystem[sub].subsys_name);
- *p-- = '\0';
+ *--p = '\0';
p = _itoa (errnum, p, 16, 1);
*p-- = ' ';
p = memcpy (p - len, es->subsystem[sub].subsys_name, len);
generated by cgit v1.1 at 2024-12-03 01:32:56 +0000