30 lines
1.4 KiB
Diff
30 lines
1.4 KiB
Diff
--- a/ldso/ldso/ldso.c
|
|
+++ b/ldso/ldso/ldso.c
|
|
@@ -286,15 +286,20 @@ void _dl_get_ready_to_run(struct elf_res
|
|
_dl_debug_early("calling mprotect on the application program\n");
|
|
/* Now cover the application program. */
|
|
if (app_tpnt->dynamic_info[DT_TEXTREL]) {
|
|
- ppnt = (ElfW(Phdr) *) auxvt[AT_PHDR].a_un.a_val;
|
|
- for (i = 0; i < auxvt[AT_PHNUM].a_un.a_val; i++, ppnt++) {
|
|
- if (ppnt->p_type == PT_LOAD && !(ppnt->p_flags & PF_W))
|
|
- _dl_mprotect((void *) (DL_RELOC_ADDR(app_tpnt->loadaddr, ppnt->p_vaddr) & PAGE_ALIGN),
|
|
- ((ppnt->p_vaddr + app_tpnt->loadaddr) & ADDR_ALIGN) +
|
|
- (unsigned long) ppnt->p_filesz,
|
|
+ ElfW(Phdr) *ppnt_inner = (ElfW(Phdr) *) auxvt[AT_PHDR].a_un.a_val;
|
|
+ for (i = 0; i < auxvt[AT_PHNUM].a_un.a_val; i++, ppnt_inner++) {
|
|
+ if (ppnt_inner->p_type == PT_LOAD && !(ppnt_inner->p_flags & PF_W))
|
|
+ _dl_mprotect((void *) (DL_RELOC_ADDR(app_tpnt->loadaddr, ppnt_inner->p_vaddr) & PAGE_ALIGN),
|
|
+ ((ppnt_inner->p_vaddr + app_tpnt->loadaddr) & ADDR_ALIGN) +
|
|
+ (unsigned long) ppnt_inner->p_filesz,
|
|
PROT_READ | PROT_WRITE | PROT_EXEC);
|
|
}
|
|
}
|
|
+#else
|
|
+ if (app_tpnt->dynamic_info[DT_TEXTREL]) {
|
|
+ _dl_dprintf(_dl_debug_file, "Can't modify application's text section; use the GCC option -fPIE for position-independent executables.\n");
|
|
+ _dl_exit(1);
|
|
+}
|
|
#endif
|
|
|
|
#ifndef ALLOW_ZERO_PLTGOT
|