diff options
Diffstat (limited to 'fs')
-rw-r--r-- | fs/binfmt_elf_fdpic.c | 45 |
1 files changed, 25 insertions, 20 deletions
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index fdeadab2f18..80c1f952ef7 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c | |||
@@ -470,6 +470,7 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, | |||
470 | char __user *u_platform, *p; | 470 | char __user *u_platform, *p; |
471 | long hwcap; | 471 | long hwcap; |
472 | int loop; | 472 | int loop; |
473 | int nr; /* reset for each csp adjustment */ | ||
473 | 474 | ||
474 | /* we're going to shovel a whole load of stuff onto the stack */ | 475 | /* we're going to shovel a whole load of stuff onto the stack */ |
475 | #ifdef CONFIG_MMU | 476 | #ifdef CONFIG_MMU |
@@ -542,10 +543,7 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, | |||
542 | /* force 16 byte _final_ alignment here for generality */ | 543 | /* force 16 byte _final_ alignment here for generality */ |
543 | #define DLINFO_ITEMS 13 | 544 | #define DLINFO_ITEMS 13 |
544 | 545 | ||
545 | nitems = 1 + DLINFO_ITEMS + (k_platform ? 1 : 0); | 546 | nitems = 1 + DLINFO_ITEMS + (k_platform ? 1 : 0) + AT_VECTOR_SIZE_ARCH; |
546 | #ifdef DLINFO_ARCH_ITEMS | ||
547 | nitems += DLINFO_ARCH_ITEMS; | ||
548 | #endif | ||
549 | 547 | ||
550 | csp = sp; | 548 | csp = sp; |
551 | sp -= nitems * 2 * sizeof(unsigned long); | 549 | sp -= nitems * 2 * sizeof(unsigned long); |
@@ -557,39 +555,46 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, | |||
557 | sp -= sp & 15UL; | 555 | sp -= sp & 15UL; |
558 | 556 | ||
559 | /* put the ELF interpreter info on the stack */ | 557 | /* put the ELF interpreter info on the stack */ |
560 | #define NEW_AUX_ENT(nr, id, val) \ | 558 | #define NEW_AUX_ENT(id, val) \ |
561 | do { \ | 559 | do { \ |
562 | struct { unsigned long _id, _val; } __user *ent; \ | 560 | struct { unsigned long _id, _val; } __user *ent; \ |
563 | \ | 561 | \ |
564 | ent = (void __user *) csp; \ | 562 | ent = (void __user *) csp; \ |
565 | __put_user((id), &ent[nr]._id); \ | 563 | __put_user((id), &ent[nr]._id); \ |
566 | __put_user((val), &ent[nr]._val); \ | 564 | __put_user((val), &ent[nr]._val); \ |
565 | nr++; \ | ||
567 | } while (0) | 566 | } while (0) |
568 | 567 | ||
568 | nr = 0; | ||
569 | csp -= 2 * sizeof(unsigned long); | 569 | csp -= 2 * sizeof(unsigned long); |
570 | NEW_AUX_ENT(0, AT_NULL, 0); | 570 | NEW_AUX_ENT(AT_NULL, 0); |
571 | if (k_platform) { | 571 | if (k_platform) { |
572 | nr = 0; | ||
572 | csp -= 2 * sizeof(unsigned long); | 573 | csp -= 2 * sizeof(unsigned long); |
573 | NEW_AUX_ENT(0, AT_PLATFORM, | 574 | NEW_AUX_ENT(AT_PLATFORM, |
574 | (elf_addr_t) (unsigned long) u_platform); | 575 | (elf_addr_t) (unsigned long) u_platform); |
575 | } | 576 | } |
576 | 577 | ||
578 | nr = 0; | ||
577 | csp -= DLINFO_ITEMS * 2 * sizeof(unsigned long); | 579 | csp -= DLINFO_ITEMS * 2 * sizeof(unsigned long); |
578 | NEW_AUX_ENT( 0, AT_HWCAP, hwcap); | 580 | NEW_AUX_ENT(AT_HWCAP, hwcap); |
579 | NEW_AUX_ENT( 1, AT_PAGESZ, PAGE_SIZE); | 581 | NEW_AUX_ENT(AT_PAGESZ, PAGE_SIZE); |
580 | NEW_AUX_ENT( 2, AT_CLKTCK, CLOCKS_PER_SEC); | 582 | NEW_AUX_ENT(AT_CLKTCK, CLOCKS_PER_SEC); |
581 | NEW_AUX_ENT( 3, AT_PHDR, exec_params->ph_addr); | 583 | NEW_AUX_ENT(AT_PHDR, exec_params->ph_addr); |
582 | NEW_AUX_ENT( 4, AT_PHENT, sizeof(struct elf_phdr)); | 584 | NEW_AUX_ENT(AT_PHENT, sizeof(struct elf_phdr)); |
583 | NEW_AUX_ENT( 5, AT_PHNUM, exec_params->hdr.e_phnum); | 585 | NEW_AUX_ENT(AT_PHNUM, exec_params->hdr.e_phnum); |
584 | NEW_AUX_ENT( 6, AT_BASE, interp_params->elfhdr_addr); | 586 | NEW_AUX_ENT(AT_BASE, interp_params->elfhdr_addr); |
585 | NEW_AUX_ENT( 7, AT_FLAGS, 0); | 587 | NEW_AUX_ENT(AT_FLAGS, 0); |
586 | NEW_AUX_ENT( 8, AT_ENTRY, exec_params->entry_addr); | 588 | NEW_AUX_ENT(AT_ENTRY, exec_params->entry_addr); |
587 | NEW_AUX_ENT( 9, AT_UID, (elf_addr_t) current->uid); | 589 | NEW_AUX_ENT(AT_UID, (elf_addr_t) current->uid); |
588 | NEW_AUX_ENT(10, AT_EUID, (elf_addr_t) current->euid); | 590 | NEW_AUX_ENT(AT_EUID, (elf_addr_t) current->euid); |
589 | NEW_AUX_ENT(11, AT_GID, (elf_addr_t) current->gid); | 591 | NEW_AUX_ENT(AT_GID, (elf_addr_t) current->gid); |
590 | NEW_AUX_ENT(12, AT_EGID, (elf_addr_t) current->egid); | 592 | NEW_AUX_ENT(AT_EGID, (elf_addr_t) current->egid); |
591 | 593 | ||
592 | #ifdef ARCH_DLINFO | 594 | #ifdef ARCH_DLINFO |
595 | nr = 0; | ||
596 | csp -= AT_VECTOR_SIZE_ARCH * 2 * sizeof(unsigned long); | ||
597 | |||
593 | /* ARCH_DLINFO must come last so platform specific code can enforce | 598 | /* ARCH_DLINFO must come last so platform specific code can enforce |
594 | * special alignment requirements on the AUXV if necessary (eg. PPC). | 599 | * special alignment requirements on the AUXV if necessary (eg. PPC). |
595 | */ | 600 | */ |