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path: root/fs/binfmt_elf_fdpic.c
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Diffstat (limited to 'fs/binfmt_elf_fdpic.c')
-rw-r--r--fs/binfmt_elf_fdpic.c78
1 files changed, 37 insertions, 41 deletions
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index d051a32e6270..80c1f952ef78 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -433,13 +433,6 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm,
entryaddr = interp_params.entry_addr ?: exec_params.entry_addr;
start_thread(regs, entryaddr, current->mm->start_stack);
- if (unlikely(current->ptrace & PT_PTRACED)) {
- if (current->ptrace & PT_TRACE_EXEC)
- ptrace_notify((PTRACE_EVENT_EXEC << 8) | SIGTRAP);
- else
- send_sig(SIGTRAP, current, 0);
- }
-
retval = 0;
error:
@@ -477,6 +470,7 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm,
char __user *u_platform, *p;
long hwcap;
int loop;
+ int nr; /* reset for each csp adjustment */
/* we're going to shovel a whole load of stuff onto the stack */
#ifdef CONFIG_MMU
@@ -549,10 +543,7 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm,
/* force 16 byte _final_ alignment here for generality */
#define DLINFO_ITEMS 13
- nitems = 1 + DLINFO_ITEMS + (k_platform ? 1 : 0);
-#ifdef DLINFO_ARCH_ITEMS
- nitems += DLINFO_ARCH_ITEMS;
-#endif
+ nitems = 1 + DLINFO_ITEMS + (k_platform ? 1 : 0) + AT_VECTOR_SIZE_ARCH;
csp = sp;
sp -= nitems * 2 * sizeof(unsigned long);
@@ -564,39 +555,46 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm,
sp -= sp & 15UL;
/* put the ELF interpreter info on the stack */
-#define NEW_AUX_ENT(nr, id, val) \
+#define NEW_AUX_ENT(id, val) \
do { \
struct { unsigned long _id, _val; } __user *ent; \
\
ent = (void __user *) csp; \
__put_user((id), &ent[nr]._id); \
__put_user((val), &ent[nr]._val); \
+ nr++; \
} while (0)
+ nr = 0;
csp -= 2 * sizeof(unsigned long);
- NEW_AUX_ENT(0, AT_NULL, 0);
+ NEW_AUX_ENT(AT_NULL, 0);
if (k_platform) {
+ nr = 0;
csp -= 2 * sizeof(unsigned long);
- NEW_AUX_ENT(0, AT_PLATFORM,
+ NEW_AUX_ENT(AT_PLATFORM,
(elf_addr_t) (unsigned long) u_platform);
}
+ nr = 0;
csp -= DLINFO_ITEMS * 2 * sizeof(unsigned long);
- NEW_AUX_ENT( 0, AT_HWCAP, hwcap);
- NEW_AUX_ENT( 1, AT_PAGESZ, PAGE_SIZE);
- NEW_AUX_ENT( 2, AT_CLKTCK, CLOCKS_PER_SEC);
- NEW_AUX_ENT( 3, AT_PHDR, exec_params->ph_addr);
- NEW_AUX_ENT( 4, AT_PHENT, sizeof(struct elf_phdr));
- NEW_AUX_ENT( 5, AT_PHNUM, exec_params->hdr.e_phnum);
- NEW_AUX_ENT( 6, AT_BASE, interp_params->elfhdr_addr);
- NEW_AUX_ENT( 7, AT_FLAGS, 0);
- NEW_AUX_ENT( 8, AT_ENTRY, exec_params->entry_addr);
- NEW_AUX_ENT( 9, AT_UID, (elf_addr_t) current->uid);
- NEW_AUX_ENT(10, AT_EUID, (elf_addr_t) current->euid);
- NEW_AUX_ENT(11, AT_GID, (elf_addr_t) current->gid);
- NEW_AUX_ENT(12, AT_EGID, (elf_addr_t) current->egid);
+ NEW_AUX_ENT(AT_HWCAP, hwcap);
+ NEW_AUX_ENT(AT_PAGESZ, PAGE_SIZE);
+ NEW_AUX_ENT(AT_CLKTCK, CLOCKS_PER_SEC);
+ NEW_AUX_ENT(AT_PHDR, exec_params->ph_addr);
+ NEW_AUX_ENT(AT_PHENT, sizeof(struct elf_phdr));
+ NEW_AUX_ENT(AT_PHNUM, exec_params->hdr.e_phnum);
+ NEW_AUX_ENT(AT_BASE, interp_params->elfhdr_addr);
+ NEW_AUX_ENT(AT_FLAGS, 0);
+ NEW_AUX_ENT(AT_ENTRY, exec_params->entry_addr);
+ NEW_AUX_ENT(AT_UID, (elf_addr_t) current->uid);
+ NEW_AUX_ENT(AT_EUID, (elf_addr_t) current->euid);
+ NEW_AUX_ENT(AT_GID, (elf_addr_t) current->gid);
+ NEW_AUX_ENT(AT_EGID, (elf_addr_t) current->egid);
#ifdef ARCH_DLINFO
+ nr = 0;
+ csp -= AT_VECTOR_SIZE_ARCH * 2 * sizeof(unsigned long);
+
/* ARCH_DLINFO must come last so platform specific code can enforce
* special alignment requirements on the AUXV if necessary (eg. PPC).
*/
@@ -1573,7 +1571,6 @@ static int elf_fdpic_core_dump(long signr, struct pt_regs *regs,
struct memelfnote *notes = NULL;
struct elf_prstatus *prstatus = NULL; /* NT_PRSTATUS */
struct elf_prpsinfo *psinfo = NULL; /* NT_PRPSINFO */
- struct task_struct *g, *p;
LIST_HEAD(thread_list);
struct list_head *t;
elf_fpregset_t *fpu = NULL;
@@ -1622,20 +1619,19 @@ static int elf_fdpic_core_dump(long signr, struct pt_regs *regs,
#endif
if (signr) {
+ struct core_thread *ct;
struct elf_thread_status *tmp;
- rcu_read_lock();
- do_each_thread(g,p)
- if (current->mm == p->mm && current != p) {
- tmp = kzalloc(sizeof(*tmp), GFP_ATOMIC);
- if (!tmp) {
- rcu_read_unlock();
- goto cleanup;
- }
- tmp->thread = p;
- list_add(&tmp->list, &thread_list);
- }
- while_each_thread(g,p);
- rcu_read_unlock();
+
+ for (ct = current->mm->core_state->dumper.next;
+ ct; ct = ct->next) {
+ tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
+ if (!tmp)
+ goto cleanup;
+
+ tmp->thread = ct->task;
+ list_add(&tmp->list, &thread_list);
+ }
+
list_for_each(t, &thread_list) {
struct elf_thread_status *tmp;
int sz;