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2000-05-05  Ulrich Drepper  <drepper@redhat.com>

	* elf/dl-load.c (_dl_map_object_from_fd): Little of computation of
	parameter to mprotect and for variable assignments.

2000-05-03  Jes Sorensen  <jes@linuxcare.com>

	* sysdeps/generic/ldsodefs.h (LOOKUP_VALUE_ADDRESS): Check the
	validity of map before dereferencing it.

	* elf/dl-reloc.c (RESOLVE_MAP): Define.

2000-05-02  Jes Sorensen  <jes@linuxcare.com>

	* elf/dl-runtime.c (fixup): Add the value returned in the symbol
	lookup to the arguments to elf_machine_fixup_plt().

	* sysdeps/ia64/dl-machine.h (elf_machine_fixup_plt): Add Link_map
	of the symbol being resolved to input argument list and make the
	function return the pointer to the reloc.

	* sysdeps/alpha/dl-machine.h (elf_machine_fixup_plt): Change
	return valuie to lookup_t and return the value.
	* sysdeps/arm/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/generic/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/i386/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/m68k/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_fixup_plt): Likewise.
	* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_fixup_plt): Likewise.

	* sysdeps/powerpc/dl-machine.h (elf_machine_fixup_plt): Likewise.
	Make it an inline function returning value after calling
	__elf_machine_fixup_plt().

	* elf/dl-sym.c (_dl_vsym): Use DL_SYMBOL_ADDRESS() to obtain the
	symbol address.

	* elf/dl-symbol.c (_dl_symbol_value): Use LOOKUP_VALUE_ADDRESS to
	obtain the symbol address.

	* sysdeps/generic/ldsodefs.h: Add generic DL_SYMBOL_ADDRESS() macro
	depending on the definition of ELF_FUNCTION_PTR_IS_SPECIAL.

	* sysdeps/ia64/dl-machine.h: Add DL_SYMBOL_ADDRESS() macro calling
	_dl_symbol_address() - this way DL_SYMBOL_ADDRESS() turns into an
	inline on non ia64.

2000-04-28  Jes Sorensen  <jes@linuxcare.com>

	* elf/dl-runtime.c (fixup): Use the portable macros to get the
	symbol address of an object.

	* elf/dl-runtime.c (fixup-profile): Use the portable macros to get
	the symbol address of an object.

	* elf/dl-libc.c (struct do_dlsym_args): Change loadbase to a lookup_t.
	* elf/dl-lookup.c (_dl_lookup_symbol): Likewise.
	(_dl_lookup_symbol_skip): Likewise.
	(_dl_lookup_versioned_symbol): Likewise.
	(_dl_lookup_versioned_symbol_skip): Likewise.

2000-04-27  Jes Sorensen  <jes@linuxcare.com>

	* elf/rtld.c (_dl_start): Get the function pointer return address
	via _dl_start_address for architectures that need a function
	pointer descriptor rather than just a pointer (ia64).

	* sysdeps/generic/dl-lookupcfg.h: New file.
	* sysdeps/ia64/dl-lookupcfg.h: New file.
	* sysdeps/ia64/dl-machine.h: New file.
	* sysdeps/ia64/dl-symaddr.c: New file.
	* sysdeps/ia64/dl-fptr.c: New file.

	* elf/elf.h: Add IA-64 specific definitions.
This commit is contained in:
Ulrich Drepper
2000-05-05 07:15:29 +00:00
parent 61d357cae3
commit c0282c0642
24 changed files with 1212 additions and 125 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
elf/rtld.c
View File

@@ -160,6 +160,8 @@ _dl_start (void *arg)
/* This #define produces dynamic linking inline functions for
bootstrap relocation instead of general-purpose relocation. */
#define RTLD_BOOTSTRAP
#define RESOLVE_MAP(sym, version, flags) \
((*(sym))->st_shndx == SHN_UNDEF ? 0 : &bootstrap_map)
#define RESOLVE(sym, version, flags) \
((*(sym))->st_shndx == SHN_UNDEF ? 0 : bootstrap_map.l_addr)
#include "dynamic-link.h"
@@ -200,7 +202,15 @@ _dl_start (void *arg)
header table in core. Put the rest of _dl_start into a separate
function, that way the compiler cannot put accesses to the GOT
before ELF_DYNAMIC_RELOCATE. */
return _dl_start_final (arg, &bootstrap_map, start_time);
{
ElfW(Addr) entry = _dl_start_final (arg, &bootstrap_map, start_time);
#ifndef ELF_MACHINE_START_ADDRESS
# define ELF_MACHINE_START_ADDRESS(map, start) (start)
#endif
return ELF_MACHINE_START_ADDRESS (_dl_loaded, entry);
}
}
@@ -886,10 +896,16 @@ of this helper program; chances are you did not intend to run this program.\n\
for (i = 1; i < _dl_argc; ++i)
{
const ElfW(Sym) *ref = NULL;
ElfW(Addr) loadbase = _dl_lookup_symbol (_dl_argv[i], _dl_loaded,
&ref, _dl_loaded->l_scope,
ELF_MACHINE_JMP_SLOT);
ElfW(Addr) loadbase;
lookup_t result;
char buf[20], *bp;
result = _dl_lookup_symbol (_dl_argv[i], _dl_loaded,
&ref, _dl_loaded->l_scope,
ELF_MACHINE_JMP_SLOT);
loadbase = LOOKUP_VALUE_ADDRESS (result);
buf[sizeof buf - 1] = '\0';
bp = _itoa_word (ref->st_value, &buf[sizeof buf - 1], 16, 0);
while ((size_t) (&buf[sizeof buf - 1] - bp) < sizeof loadbase * 2)