diff options
Diffstat (limited to 'ldso')
| -rw-r--r-- | ldso/ldso/dl-startup.c | 25 | ||||
| -rw-r--r-- | ldso/ldso/ldso.c | 14 |
2 files changed, 6 insertions, 33 deletions
diff --git a/ldso/ldso/dl-startup.c b/ldso/ldso/dl-startup.c index f40207996..e9191e8a4 100644 --- a/ldso/ldso/dl-startup.c +++ b/ldso/ldso/dl-startup.c @@ -304,27 +304,25 @@ found_got: app_tpnt = LD_MALLOC(sizeof(struct elf_resolve)); _dl_memset(app_tpnt, 0, sizeof(struct elf_resolve)); -#ifdef __UCLIBC_PIE_SUPPORT__ /* Find the runtime load address of the main executable, this may be * different from what the ELF header says for ET_DYN/PIE executables. */ { - ElfW(Phdr) *ppnt; int i; - - ppnt = (ElfW(Phdr) *) auxvt[AT_PHDR].a_un.a_ptr; + ElfW(Phdr) *ppnt = (ElfW(Phdr) *) auxvt[AT_PHDR].a_un.a_ptr; for (i = 0; i < auxvt[AT_PHNUM].a_un.a_val; i++, ppnt++) if (ppnt->p_type == PT_PHDR) { app_tpnt->loadaddr = (ElfW(Addr)) (auxvt[AT_PHDR].a_un.a_val - ppnt->p_vaddr); break; } - } #ifdef __SUPPORT_LD_DEBUG_EARLY__ - SEND_STDERR("app_tpnt->loadaddr="); - SEND_ADDRESS_STDERR(app_tpnt->loadaddr, 1); -#endif + if (app_tpnt->loadaddr) { + SEND_STDERR("Position Independent Executable: app_tpnt->loadaddr="); + SEND_ADDRESS_STDERR(app_tpnt->loadaddr, 1); + } #endif + } /* * This is used by gdb to locate the chain of shared libraries that are currently loaded. @@ -362,11 +360,7 @@ found_got: ppnt = (ElfW(Phdr) *) auxvt[AT_PHDR].a_un.a_ptr; for (i = 0; i < auxvt[AT_PHNUM].a_un.a_val; i++, ppnt++) if (ppnt->p_type == PT_DYNAMIC) { -#ifndef __UCLIBC_PIE_SUPPORT__ - dpnt = (Elf32_Dyn *) ppnt->p_vaddr; -#else dpnt = (Elf32_Dyn *) (ppnt->p_vaddr + app_tpnt->loadaddr); -#endif while (dpnt->d_tag) { #if defined(__mips__) if (dpnt->d_tag == DT_MIPS_GOTSYM) @@ -460,17 +454,10 @@ found_got: ppnt = (ElfW(Phdr) *) auxvt[AT_PHDR].a_un.a_ptr; for (i = 0; i < auxvt[AT_PHNUM].a_un.a_val; i++, ppnt++) { if (ppnt->p_type == PT_LOAD && !(ppnt->p_flags & PF_W)) -#ifndef __UCLIBC_PIE_SUPPORT__ - _dl_mprotect((void *) (ppnt->p_vaddr & PAGE_ALIGN), - (ppnt->p_vaddr & ADDR_ALIGN) + - (unsigned long) ppnt->p_filesz, - PROT_READ | PROT_WRITE | PROT_EXEC); -#else _dl_mprotect((void *) ((ppnt->p_vaddr + app_tpnt->loadaddr) & PAGE_ALIGN), ((ppnt->p_vaddr + app_tpnt->loadaddr) & ADDR_ALIGN) + (unsigned long) ppnt->p_filesz, PROT_READ | PROT_WRITE | PROT_EXEC); -#endif } } } diff --git a/ldso/ldso/ldso.c b/ldso/ldso/ldso.c index 0b0cb1389..71fadd4dd 100644 --- a/ldso/ldso/ldso.c +++ b/ldso/ldso/ldso.c @@ -172,13 +172,8 @@ void _dl_get_ready_to_run(struct elf_resolve *tpnt, struct elf_resolve *app_tpnt ppnt = (ElfW(Phdr) *) auxvt[AT_PHDR].a_un.a_ptr; for (i = 0; i < auxvt[AT_PHNUM].a_un.a_val; i++, ppnt++) { if (ppnt->p_type == PT_LOAD) { -#ifndef __UCLIBC_PIE_SUPPORT__ - if (ppnt->p_vaddr + ppnt->p_memsz > brk_addr) - brk_addr = ppnt->p_vaddr + ppnt->p_memsz; -#else if (ppnt->p_vaddr + app_tpnt->loadaddr + ppnt->p_memsz > brk_addr) brk_addr = ppnt->p_vaddr + app_tpnt->loadaddr + ppnt->p_memsz; -#endif } if (ppnt->p_type == PT_DYNAMIC) { #ifndef ALLOW_ZERO_PLTGOT @@ -187,13 +182,8 @@ void _dl_get_ready_to_run(struct elf_resolve *tpnt, struct elf_resolve *app_tpnt continue; #endif /* OK, we have what we need - slip this one into the list. */ -#ifndef __UCLIBC_PIE_SUPPORT__ - app_tpnt = _dl_add_elf_hash_table("", 0, - app_tpnt->dynamic_info, ppnt->p_vaddr, ppnt->p_filesz); -#else app_tpnt = _dl_add_elf_hash_table("", (char *)app_tpnt->loadaddr, app_tpnt->dynamic_info, ppnt->p_vaddr + app_tpnt->loadaddr, ppnt->p_filesz); -#endif _dl_loaded_modules->libtype = elf_executable; _dl_loaded_modules->ppnt = (ElfW(Phdr) *) auxvt[AT_PHDR].a_un.a_ptr; _dl_loaded_modules->n_phent = auxvt[AT_PHNUM].a_un.a_val; @@ -202,11 +192,7 @@ void _dl_get_ready_to_run(struct elf_resolve *tpnt, struct elf_resolve *app_tpnt rpnt->dyn = _dl_loaded_modules; app_tpnt->usage_count++; app_tpnt->symbol_scope = _dl_symbol_tables; -#ifndef __UCLIBC_PIE_SUPPORT__ - lpnt = (unsigned long *) (app_tpnt->dynamic_info[DT_PLTGOT]); -#else lpnt = (unsigned long *) (app_tpnt->dynamic_info[DT_PLTGOT] + app_tpnt->loadaddr); -#endif #ifdef ALLOW_ZERO_PLTGOT if (lpnt) #endif |