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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'. control. using it. and cwdir ports. functions. these. $(libdir)(rtld-installed-name). leading zeroes. in the rhs. pattern rule. never know. (fork): Use symbol_set_* macros for _hurd_fork_locks. * sysdeps/unix/sysv/sysv4/linux/i386/sysdep.S (__syscall_error): instead of unix/sysv. -dynamic-linker. (__printf_fp): Last arg ARGS is now `const void **const'; locale/C-ctype.c. * sysdeps/mach/hurd/sigsuspend.c: Likewise. * sysdeps/mach/hurd/mips/sigreturn.c: Likewise. alias gethostname. setitmr setpgrp (_S_msg_get_exec_flags, _S_msg_set_exec_flags, (abort_thread, abort_rpcs): Take same new arg and pass it through.
This commit is contained in:
Roland McGrath
parent
51093422b2
commit
86d2c878ac
96
ChangeLog
96
ChangeLog
@ -1,3 +1,35 @@
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Tue Nov 7 12:29:46 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* elf/linux-compat.c: New file.
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* elf/Makefile (distribute): Add linux-compat.c.
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(generated): Add librtld.so.
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[$(config-os)=linux*] (extra-objs): Add linux-compat.so.
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[$(config-os)=linux*] (extra-objs): Add ld-linux.so.1.
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(librtld.so): New target.
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(ld.so, ld-linux.so.1): Make from librtld.so.
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* elf/rtld.c (dl_main): Instead of weak call to _dl_compat_init,
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call our own DT_INIT if we have one (and then clear it).
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(__dgettext): New weak function.
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* intl/localealias.c (read_alias_file): Avoid sprintf; use memcpy
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by hand instead.
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* sysdeps/generic/_strerror.c (_strerror_internal): Use _itoa
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instead of snprintf.
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* sysdeps/mach/_strerror.c (_strerror_internal): Don't write
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BUF[BUFLEN].
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* elf/rtld.c (rtld_map): New static variable.
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(_dl_start): Use a differently named local BOOTSTRAP_MAP for the
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bootstrapping. Then copy data into `rtld_map'.
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(dl_main): Finish filling in rtld_map and link it into the chain,
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instead of allocating a new structure.
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(dl_main): Call _dl_compat_init if it is defined (use weak ref).
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* elf/dlsym.c: Fix last change: move REF out of `doit'.
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Mon Nov 6 16:20:14 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* elf/dlsym.c: Return the proper value, not just the defining
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@ -75,7 +107,7 @@ Thu Oct 26 23:11:11 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
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* sysdeps/unix/sysv/linux/i386/sigaction.c: Correct parameter
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name usage (new->act, old->oact).
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Correct asm statement because of gcc strangeness.
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* sysdeps/i386/i586/strchr.S: Correct typos: cmp -> cmpb.
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* sunrpc/clnt_perr.c: Remove declaration of sys_errlist. They
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@ -128,7 +160,7 @@ Thu Oct 26 03:01:22 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
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* sysdeps/unix/sysv/linux/i386/xstat.S: Likewise.
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* sysdeps/unix/sysv/linux/i386/syscall.S: Likewise.
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Don't use DO_CALL macro; instead use lower level macros for better
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control.
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control.
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* sysdeps/unix/sysv/linux/sigaction.h: New file.
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* sysdeps/unix/sysv/linux/sigaction.S: File removed.
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@ -190,7 +222,7 @@ Wed Oct 18 03:33:22 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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(PSEUDO): Use it before jumping to syscall_error.
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* sysdeps/unix/i386/sysdep.S [! PIC]: Don't find GOT address;
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expect it in %ebx on entry. Pop old %ebx value off stack after
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using it.
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using it.
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* signal/signal.h [__USE_BSD] (_sys_siglist, sys_siglist): Declare
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them.
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@ -219,7 +251,7 @@ Tue Oct 17 01:21:21 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* hurd/hurdsock.c: Include stdio-common/_itoa.h instead of
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stdio/_itoa.h.
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* hurd/hurdlookup.c: Likewise.
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* hurd/hurd/signal.h: Declare hurd_preempt_signals and
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hurd_unpreempt_signals.
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@ -346,10 +378,10 @@ Sun Oct 15 21:04:13 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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(__hurd_file_name_lookup, __hurd_file_name_lookup_retry,
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__hurd_file_name_split): Rewritten to take callback functions for
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using any needed init or dtable port, instead of passing in crdir
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and cwdir ports.
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and cwdir ports.
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(__file_name_lookup, __file_name_split): Use new calling
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convention; pass _hurd_ports_use and __getdport as the callback
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functions.
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functions.
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* sysdeps/mach/hurd/chroot.c: Use __file_name_lookup_under instead
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of __hurd_file_name_lookup.
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@ -438,7 +470,7 @@ Tue Oct 10 23:08:53 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* MakeTAGS (all-dirs): Omit CVS directories.
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Specify vpath directives to find source files in $(all-dirs).
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(sources, headers): Append sources and headers from $(all-dist) to
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these.
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these.
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(all-dist): Filter them out of this.
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(all-headers, all-sources): Use $(shell find ...) instead of
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$(wildcard ...).
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@ -459,7 +491,7 @@ Mon Oct 9 02:54:14 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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(rtld-installed-name): New variable.
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* elf/Makefile (install-lib): Variable removed.
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(install-others): Define this instead, to
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$(libdir)(rtld-installed-name).
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$(libdir)(rtld-installed-name).
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($(libdir)(rtld-installed-name)): New target; install from ld.so.
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* elf/ldd.sh.in: New file.
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@ -506,7 +538,7 @@ Fri Sep 29 03:43:51 1995 Paul Eggert <eggert@twinsun.com>
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* time/mktime.c (__mon_yday): New variable; replaces `__mon_lengths'.
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time/offtime.c (__offtime), time/tzset.c (compute_change): Use it.
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* time/offtime.c (__offtime): Remove useless assignment
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`tp->tm_isdst = -1'.
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@ -602,8 +634,8 @@ Thu Sep 28 13:05:54 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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Thu Sep 28 09:20:04 1995 Ulrich Drepper <drepper@gnu.ai.mit.edu>
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* stdlib/strtod.c (STRTOF): Fix handling of numbers with lots of
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leading zeroes.
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leading zeroes.
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Wed Sep 27 00:27:25 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* sysdeps/mach/hurd/getcwd.c (__getcwd): Renamed from getcwd.
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@ -625,7 +657,7 @@ Wed Sep 27 00:27:25 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* sysdeps/unix/i386/sysdep.h [HAVE_ELF] (ASM_TYPE_DIRECTIVE):
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Don't use `type' for arg name, since we are using it as a keyword
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in the rhs.
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in the rhs.
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* sysdeps/unix/configure.in: Check for syscalls getpriority,
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setpriority, getrlimit, setrlimit.
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@ -773,7 +805,7 @@ Thu Sep 21 00:03:53 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* Makerules (build-shlib): Use $(@F:lib%.so=%) in place of
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$(notdir $*), so it wins for the explicit libc.so rule as well as the
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pattern rule.
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pattern rule.
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* sysdeps/stub/sys/sem_buf.h (union semun): New type.
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@ -967,7 +999,7 @@ Sat Sep 16 17:47:19 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
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* sysdeps/mach/_strerror.c: Change for new interface with three
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arguments.
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* stdio/perror.c, stdio/vfprintf.c: Callers changed.
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* sysdeps/mach/hurd/ttyname_r.c: New file. Reentrant version.
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* sysdeps/posix/ttyname_r.c: New file. Reentrant version.
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* sysdeps/stub/ttyname_r: New file. Define as dummy function.
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@ -1100,7 +1132,7 @@ Fri Sep 8 16:32:12 1995 Ulrich Drepper <drepper@gnu.ai.mit.edu>
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sysdeps/unix/sysv/linux/sys/timex.h:
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New Linux/ELF specific, architecture independent header files.
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* sysdeps/unix/sysv/sysv4/linux: Tree removed.
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Thu Sep 7 17:05:13 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* stdlib/msort.c (msort_with_tmp): Fixed alignment test. B1 and
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@ -1237,7 +1269,7 @@ Mon Aug 21 16:37:09 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* sysdeps/i386/dl-machine.h (elf_machine_rel): Grok R_386_NONE
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relocs, and do nothing. Why the linker generates them we may
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never know.
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never know.
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Thu Aug 17 16:18:38 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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@ -1261,7 +1293,7 @@ Thu Aug 17 16:18:38 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* sysdeps/mach/hurd/fork.c (_hurd_fork_locks): Variable removed.
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Instead, declare with `symbol_set_declare'.
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(fork): Use symbol_set_* macros for _hurd_fork_locks.
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(fork): Use symbol_set_* macros for _hurd_fork_locks.
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Use SS->thread instead of __mach_thread_self (). Suspend all
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other threads during task_create and port copying.
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@ -1520,12 +1552,12 @@ Sat Jul 22 01:56:03 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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ASM_TYPE_DIRECTIVE.
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(ASM_TYPE_DIRECTIVE): New macro; defined using `.type' #ifdef ELF.
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* sysdeps/unix/sysv/sysv4/linux/i386/sysdep.S (__syscall_error):
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* sysdeps/unix/sysv/sysv4/linux/i386/sysdep.S (__syscall_error):
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Rewritten, #include'ing unix/i386/sysdep.S for most of the code.
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* sysdeps/unix/i386/sysdep.S [PIC]: Store into `errno' through the GOT.
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* configure.in (os=linux*): Use unix/sysv/sysv4 for $base_os,
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instead of unix/sysv.
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instead of unix/sysv.
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* sysdeps/unix/sysv/linux/{accept,connect,getsockname,rename,
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socketpair,waitpid,bind,getpeername,listen,setsid,wait4}.S: Moved
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to new directory sysdeps/unix/sysv/sysv4/linux.
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@ -1863,9 +1895,9 @@ Tue May 9 01:26:52 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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variable to FORCE in this case, to force a rebuild of sysd-rules.
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(sysd-rules): Depend on $(sysd-rules-force).
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Write into the file sysd-rules-sysdirs:=$(sysdirs).
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* Makerules (LDFLAGS-c.so): Change ld option -interp to
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-dynamic-linker.
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-dynamic-linker.
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* Makerules (do-install-program): New canned sequence.
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(install-bin, install-sbin): Use it.
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@ -1950,7 +1982,7 @@ Tue May 2 01:52:58 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* sysdeps/mach/hurd/i386/init-first.c: New file.
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* sysdeps/i386/init-first.c: New file.
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* sysdeps/stub/init-first.c: New file.
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Mon May 1 18:48:30 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* Makerules (LDFLAGS-c.so): Add -interp and -e switches to make
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@ -2550,7 +2582,7 @@ Mon Mar 13 01:48:16 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* stdio/printf_fp.c (NDEBUG): Define this to disable assert.
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Don't include <stdarg.h>.
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(__printf_fp): Last arg ARGS is now `const void **const';
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(__printf_fp): Last arg ARGS is now `const void **const';
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dereference ARGS[0] instead of using va_arg.
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* locale/setlocale.c: In LC_ALL case, initialize CATEGORY before
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@ -2729,7 +2761,7 @@ Wed Mar 8 13:38:13 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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time/ialloc.c: Code and data updated from ADO's 95b.
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* time/emkdir.c: File removed.
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* time/Makefile (distribute, extra-objs, zic): Omit it.
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* time/localtime.c: Deansideclized. Never #define __tzname et al
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to non-__ names.
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@ -2769,7 +2801,7 @@ Sun Mar 5 19:40:13 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* ctype/ctype.h (_IS*): Use independent bits for all but _ISalnum.
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* ctype/ctype-info.c: For initial tables, use
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_nl_C_LC_CTYPE_{class,toupper,tolower} constant tables defined in
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locale/C-ctype.c.
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locale/C-ctype.c.
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* locale/C-ctype.c, locale/C-messages.c: New files.
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* locale/C-monetary.c, locale/C-numeric.c, locale/C-time.c:
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Default "C" locale data updated for new locale system.
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@ -3280,7 +3312,7 @@ Mon Feb 6 18:34:40 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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Don't expect _hurd_self_sigstate to lock it. Fix critical section
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locking.
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* hurd/hurd-raise.c: Likewise.
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* sysdeps/mach/hurd/sigsuspend.c: Likewise.
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* sysdeps/mach/hurd/sigsuspend.c: Likewise.
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* sysdeps/mach/hurd/sigpending.c: Likewise.
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* sysdeps/mach/hurd/sigaltstack.c: Likewise.
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* sysdeps/mach/hurd/sigaction.c: Likewise.
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@ -3290,7 +3322,7 @@ Mon Feb 6 18:34:40 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* sysdeps/mach/hurd/ioctl.c: Likewise.
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* sysdeps/mach/hurd/fork.c: Likewise.
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* sysdeps/mach/hurd/i386/sigreturn.c: Likewise.
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* sysdeps/mach/hurd/mips/sigreturn.c: Likewise.
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* sysdeps/mach/hurd/mips/sigreturn.c: Likewise.
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* sysdeps/mach/hurd/alpha/sigreturn.c: Likewise.
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* hurd/hurdmsg.c (get_int): Likewise.
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@ -3874,7 +3906,7 @@ Sat Jan 21 08:08:58 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* sysdeps/unix/common/__getgrps.S: Likewise.
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* sysdeps/mach/hurd/__getgrps.c: Likewise.
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* sysdeps/stub/__gethstnm.c: Renamed to gethostname.c; added weak
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alias gethostname.
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alias gethostname.
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* sysdeps/unix/inet/__gethstnm.S: Likewise.
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* sysdeps/unix/sysv/__gethstnm.c: Likewise.
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* sysdeps/unix/sysv/sysv4/__gethstnm.c: Likewise.
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@ -4008,11 +4040,11 @@ Sat Jan 21 08:08:58 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* sysdeps/unix/bsd/__setgid.c: Likewise.
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* sysdeps/mach/hurd/__setgid.c: Likewise.
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* sysdeps/stub/__setitmr.c: Renamed to setitmr.c; added weak alias
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setitmr
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setitmr
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* sysdeps/unix/common/__setitmr.S: Likewise.
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* sysdeps/mach/hurd/__setitmr.c: Likewise.
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* sysdeps/stub/__setpgrp.c: Renamed to setpgrp.c; added weak alias
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setpgrp
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setpgrp
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* sysdeps/unix/sysv/sysv4/__setpgrp.c: Likewise.
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* sysdeps/unix/sysv/sco3.2.4/__setpgrp.c: Likewise.
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* sysdeps/unix/sysv/irix4/__setpgrp.S: Likewise.
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@ -4352,7 +4384,7 @@ Tue Jan 17 03:16:47 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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if any are successful.
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* hurd/hurdmsg.c: Prepend `msg_' to all RPC names.
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(_S_msg_get_exec_flags, _S_msg_set_exec_flags,
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(_S_msg_get_exec_flags, _S_msg_set_exec_flags,
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_S_msg_set_some_exec_flags, _S_msg_clear_some_exec_flags): New
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functions.
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(_S_io_select_done, _S_dir_changed, _S_file_changed): Stubs removed.
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@ -4374,7 +4406,7 @@ Tue Jan 17 03:16:47 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* hurd/hurdsig.c (post_reply): Take new arg UNTRACED; if nonzero,
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use sig_post_untraced_reply. All callers changed.
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(abort_thread, abort_rpcs): Take same new arg and pass it through.
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(abort_thread, abort_rpcs): Take same new arg and pass it through.
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All callers changed.
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(_hurd_internal_post_signal): Take new arg UNTRACED.
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If zero and process is traced, stop with SIGNO as stop signal. If
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28
elf/Makefile
28
elf/Makefile
@ -31,24 +31,42 @@ libdl-inhibit-o = $(filter-out .so,$(object-suffixes)) # Build only shared.
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rtld-routines := rtld $(addprefix dl-,load lookup object reloc \
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runtime sysdep error init fini)
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distribute = $(rtld-routines:=.c) dynamic-link.h do-rel.h \
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soinit.c sofini.c ldd.sh.in
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soinit.c sofini.c ldd.sh.in linux-compat.c
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include ../Makeconfig
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ifeq (yes,$(build-shared))
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extra-objs = $(rtld-routines:=.so) soinit.so sofini.so
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generated = librtld.so
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install-others = $(libdir)/$(rtld-installed-name)
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install-bin = ldd
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|
||||
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)%=%) \
|
||||
|
||||
@ -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);
|
||||
}
|
||||
|
||||
|
||||
40
elf/linux-compat.c
Normal file
40
elf/linux-compat.c
Normal file
@ -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);
|
||||
}
|
||||
76
elf/rtld.c
76
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.
|
||||
|
||||
@ -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)
|
||||
|
||||
@ -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]);
|
||||
|
||||
@ -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);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user