diff options
Diffstat (limited to 'libexec/rtld-elf/rtld.c')
| -rw-r--r-- | libexec/rtld-elf/rtld.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/libexec/rtld-elf/rtld.c b/libexec/rtld-elf/rtld.c index 721fe8967eb6..2eebf220b5c7 100644 --- a/libexec/rtld-elf/rtld.c +++ b/libexec/rtld-elf/rtld.c @@ -474,6 +474,7 @@ _rtld(Elf_Addr *sp, func_ptr_type *exit_proc, Obj_Entry **objp) /* Initialize a fake symbol for resolving undefined weak references. */ sym_zero.st_info = ELF_ST_INFO(STB_GLOBAL, STT_NOTYPE); sym_zero.st_shndx = SHN_UNDEF; + sym_zero.st_value = -(uintptr_t)obj_main->relocbase; if (!libmap_disable) libmap_disable = (bool)lm_init(libmap_override); @@ -991,26 +992,26 @@ digest_phdr(const Elf_Phdr *phdr, int phnum, caddr_t entry, const char *path) obj = obj_new(); for (ph = phdr; ph < phlimit; ph++) { - switch (ph->p_type) { + if (ph->p_type != PT_PHDR) + continue; - case PT_PHDR: - if ((const Elf_Phdr *)ph->p_vaddr != phdr) { - _rtld_error("%s: invalid PT_PHDR", path); - return NULL; - } - obj->phdr = (const Elf_Phdr *) ph->p_vaddr; - obj->phsize = ph->p_memsz; - break; + obj->phdr = phdr; + obj->phsize = ph->p_memsz; + obj->relocbase = (caddr_t)phdr - ph->p_vaddr; + break; + } + + for (ph = phdr; ph < phlimit; ph++) { + switch (ph->p_type) { case PT_INTERP: - obj->interp = (const char *) ph->p_vaddr; + obj->interp = (const char *)(ph->p_vaddr + obj->relocbase); break; case PT_LOAD: if (nsegs == 0) { /* First load segment */ obj->vaddrbase = trunc_page(ph->p_vaddr); - obj->mapbase = (caddr_t) obj->vaddrbase; - obj->relocbase = obj->mapbase - obj->vaddrbase; + obj->mapbase = obj->vaddrbase + obj->relocbase; obj->textsize = round_page(ph->p_vaddr + ph->p_memsz) - obj->vaddrbase; } else { /* Last load segment */ @@ -1021,7 +1022,7 @@ digest_phdr(const Elf_Phdr *phdr, int phnum, caddr_t entry, const char *path) break; case PT_DYNAMIC: - obj->dynamic = (const Elf_Dyn *) ph->p_vaddr; + obj->dynamic = (const Elf_Dyn *)(ph->p_vaddr + obj->relocbase); break; case PT_TLS: @@ -1029,7 +1030,7 @@ digest_phdr(const Elf_Phdr *phdr, int phnum, caddr_t entry, const char *path) obj->tlssize = ph->p_memsz; obj->tlsalign = ph->p_align; obj->tlsinitsize = ph->p_filesz; - obj->tlsinit = (void*) ph->p_vaddr; + obj->tlsinit = (void*)(ph->p_vaddr + obj->relocbase); break; } } |