Update.cvs/libc-ud-970926

1997-09-27 01:14  Ulrich Drepper  <drepper@cygnus.com>

	* Makeconfig (extra-objs): Depend in before-compile.

	* configure.in: Locate Perl and substitute with complete path.
	* config.make.in: Add PERL for substitution.
	* elf/Makefile (routines): Add dl-addr.
	* elf/dladdr.c: Move the real code into ...
	* elf/dl-addr.c: New file.
	* elf/link.h: Add prototype for _dl_addr.

	* elf/dladdr.c (dladdr): Change address argument to be const.
	* elf/dlfcn.h: Likewise.

	* locale/C_name.c: Add _nl_POSIX_name.
	* locale/localeinfo.h: Add declaration of _nl_POSIX_name.
	* locale/findlocale.c (_nl_find_locale): Use _nl_POSIX_name.
	(_nl_remove_locale): Free name of data set.
	* locale/setlocale.c (clever_copy): Remove.
	(new_composite_name): Use _nl_C_name and _nl_POSIX_name in compare.
	(setname): Only remove old name when it is for category LC_ALL.

	Change malloc, free, realloc, and memalign hooks for glibc to take
	another parameter indicating the location of the caller.
	* malloc/malloc.c: Change hook functions and variables.
	* malloc/malloc.h: Likewise.
	* malloc/mcheck.c: Likewise.  Make sure later hooked function also
	get the original caller address.
	* malloc/mtrace.c: Likewise.
	(tr_where): If no information in _mtrace_file is given use the
	information about the caller.
	* malloc/Makefile (distribute): Replace mtrace.awk by mtrace.pl.
	Add rules to install mtrace.pl after rewriting.
	* malloc/mtrace.pl: New file.  Based on the old AWK script but
	with extended functionality.
	* malloc/mtrace.awk: Removed.

	* po/fr.po: New version.

	* string/Makefile: Do use builtins for tester.c and inl-tester.c.
	* string/tester.c: Rewrite.  Split in many small functions to not
	exceed gcc's limits.

	* sysdeps/unix/sysv/linux/syscalls.list: Add prctl.

1997-09-25  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* string/bits/string2.h (__stpcpy_small): Don't use casts as
	lvalues.

1997-09-26  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* manual/time.texi (Formatting Date and Time): Clarify
	explanation of strftime flags a bit.
	Suggested by Robert Bihlmeyer <robbe@orcus.priv.at>.

1997-09-25 00:13  David S. Miller  <davem@tanya.rutgers.edu>

	* sysdeps/libm-ieee754/s_exp2f.c: Protect _GNU_SOURCE definition.
	Fix typo, it is FLT_MANT_DIG.

1997-09-24 18:52  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* math/atest-exp2.c: Include <stdlib/gmp.h> instead of <gmp.h>.

1997-08-27 08:10  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* libio/libio.h, libio/libioP.h: Support libio in libstdc++.

	* libio/libio.h (_IO_peekc): Defined as _IO_peekc_unlocked if
	_IO_MTSAFE_IO is undefined.

1997-09-24 23:27  Richard Henderson  <rth@cygnus.com>

	* elf/dl-runtime.c (fixup): Don't go through elf_machine_relplt, but
	lookup the value of the target symbol ourselves and call the new
	elf_machine_fixup_plt.  This kills the ELF_FIXUP_RETURN_VALUE hack.
	(profile_fixup): Likewise, but don't fix up the plt.
	* elf/rtld.c (_dl_main): ELF_MACHINE_RELOC_NOPLT renamed _JMP_SLOT.
	* sysdeps/alpha/dl-machine.h (ELF_MACHINE_RELOC_NOPLT): Renamed.
	(elf_alpha_fix_plt): Renamed elf_machine_fixup_plt.
	* sysdeps/i386/dl-machine.h (elf_machine_relplt): Killed.
	(ELF_MACHINE_JMP_SLOT): Renamed.
	(elf_machine_fixup_plt): New function.
	* sysdeps/m68k/dl-machine.h: Likewise.
	* sysdeps/powerpc/dl-machine.h: Likewise.
	(elf_machine_rela): Moved JMP_SLOT fixup out to elf_machine_fixup_plt.
	* sysdeps/sparc/sparc32/dl-machine.h: Likewise.
	* sysdeps/sparc/sparc64/dl-machine.h: Likewise.
	* sysdeps/stub/dl-machine.h: Update, sorta.

	* sysdeps/alpha/dl-machine.h (elf_machine_runtime_setup): Do profiling.
	(TRAMPOLINE_TEMPLATE): From the carcas of _RUNTIME_TRAMPOLINE, do
	both normal and profile code.
	(elf_machine_rela): Handle r_addend for .got and .plt too.

1 files changed, 4 insertions, 60 deletions

diff --git a/elf/dladdr.c b/elf/dladdr.c
index 59e9783..d82a9e7 100644
--- a/elf/dladdr.c
+++ b/elf/dladdr.c
@@ -1,5 +1,5 @@
-/* dladdr -- Locate the shared object symbol nearest a given address.
-   Copyright (C) 1996 Free Software Foundation, Inc.
+/* Locate the shared object symbol nearest a given address.
+   Copyright (C) 1996, 1997 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
@@ -23,63 +23,7 @@
 
 
 int
-dladdr (void *address, Dl_info *info)
+dladdr (const void *address, Dl_info *info)
 {
-  const ElfW(Addr) addr = (ElfW(Addr)) address;
-  struct link_map *l, *match;
-  const ElfW(Sym) *symtab, *matchsym;
-  const char *strtab;
-
-  /* Find the highest-addressed object that ADDRESS is not below.  */
-  match = NULL;
-  for (l = _dl_loaded; l; l = l->l_next)
-    if (addr >= l->l_addr && !match || match->l_addr < l->l_addr)
-      match = l;
-
-  if (match)
-    {
-      /* We know ADDRESS lies within MATCH if in any shared object.
-	 Make sure it isn't past the end of MATCH's segments.  */
-      size_t n = match->l_phnum;
-      do
-	--n;
-      while (match->l_phdr[n].p_type != PT_LOAD);
-      if (addr >= (match->l_addr +
-		   match->l_phdr[n].p_vaddr + match->l_phdr[n].p_memsz))
-	/* Off the end of the highest-addressed shared object.  */
-	return 0;
-    }
-  else
-    return 0;
-
-  /* Now we know what object the address lies in.  */
-  info->dli_fname = match->l_name;
-  info->dli_fbase = (void *) match->l_addr;
-
-  symtab = ((void *) match->l_addr + match->l_info[DT_SYMTAB]->d_un.d_ptr);
-  strtab = ((void *) match->l_addr + match->l_info[DT_STRTAB]->d_un.d_ptr);
-
-  /* We assume that the string table follows the symbol table, because
-     there is no way in ELF to know the size of the dynamic symbol table!!  */
-  for (matchsym = NULL; (void *) symtab < (void *) strtab; ++symtab)
-    if (addr >= match->l_addr + symtab->st_value && !matchsym ||
-	matchsym->st_value < symtab->st_value &&
-	ELFW(ST_BIND) (symtab->st_info) == STB_GLOBAL ||
-	ELFW(ST_BIND) (symtab->st_info) == STB_WEAK)
-      matchsym = symtab;
-
-  if (matchsym)
-    {
-      /* We found a symbol close by.  Fill in its name and exact address.  */
-      info->dli_sname = strtab + matchsym->st_name;
-      info->dli_saddr = (void *) (match->l_addr + matchsym->st_value);
-    }
-  else
-    {
-      /* No symbol matches.  We return only the containing object.  */
-      info->dli_sname = NULL;
-      info->dli_saddr = NULL;
-    }
-
-  return 1;
+  return _dl_addr (address, info);
 }