From c0282c0642e99b375ab14fd343aa537445cd72a4 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 5 May 2000 07:15:29 +0000 Subject: Update. 2000-05-05 Ulrich Drepper * 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 * 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 * 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 * 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 * 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. --- elf/dl-load.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'elf/dl-load.c') diff --git a/elf/dl-load.c b/elf/dl-load.c index 0291bf2a74..f5d91ba6c7 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -917,11 +917,14 @@ _dl_map_object_from_fd (const char *name, int fd, char *realname, As a refinement, sometimes we have an address that we would prefer to map such objects at; but this is only a preference, the OS can do whatever it likes. */ - caddr_t mapat; ElfW(Addr) mappref; mappref = (ELF_PREFERRED_ADDRESS (loader, maplength, c->mapstart) - MAP_BASE_ADDR (l)); - mapat = map_segment (mappref, maplength, c->prot, 0, c->mapoff); + + /* Remember which part of the address space this object uses. */ + l->l_map_start = map_segment (mappref, maplength, c->prot, 0, + c->mapoff); + l->l_map_end = l->l_map_start + maplength; l->l_addr = (ElfW(Addr)) mapat - c->mapstart; /* Change protection on the excess portion to disallow all access; @@ -929,14 +932,10 @@ _dl_map_object_from_fd (const char *name, int fd, char *realname, unallocated. Then jump into the normal segment-mapping loop to handle the portion of the segment past the end of the file mapping. */ - __mprotect ((caddr_t) (l->l_addr + c->mapend), + __mprotect ((caddr_t) l->l_map_start, loadcmds[nloadcmds - 1].allocend - c->mapend, 0); - /* Remember which part of the address space this object uses. */ - l->l_map_start = c->mapstart + l->l_addr; - l->l_map_end = l->l_map_start + maplength; - goto postmap; } else -- cgit v1.2.3