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remove the rudiment of a.out for sparc

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it's been used only in sunos compat

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Al Viro 2009-01-03 07:16:13 +00:00 committed by Linus Torvalds
parent e0b685d39a
commit fe30af971d
1 changed files with 1 additions and 64 deletions
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65
fs/binfmt_aout.c
View file

@ -99,88 +99,53 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file, u
# define START_DATA(u) (u.start_data)
#elif defined(__arm__)
# define START_DATA(u) ((u.u_tsize << PAGE_SHIFT) + u.start_code)
#elif defined(__sparc__)
# define START_DATA(u) (u.u_tsize)
#elif defined(__i386__) || defined(__mc68000__) || defined(__arch_um__)
# define START_DATA(u) (u.u_tsize << PAGE_SHIFT)
#endif
#ifdef __sparc__
# define START_STACK(u) ((regs->u_regs[UREG_FP]) & ~(PAGE_SIZE - 1))
#else
# define START_STACK(u) (u.start_stack)
#endif
fs = get_fs();
set_fs(KERNEL_DS);
has_dumped = 1;
current->flags |= PF_DUMPCORE;
strncpy(dump.u_comm, current->comm, sizeof(dump.u_comm));
#ifndef __sparc__
dump.u_ar0 = offsetof(struct user, regs);
#endif
dump.signal = signr;
aout_dump_thread(regs, &dump);
/* If the size of the dump file exceeds the rlimit, then see what would happen
if we wrote the stack, but not the data area. */
#ifdef __sparc__
if ((dump.u_dsize + dump.u_ssize) > limit)
dump.u_dsize = 0;
#else
if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > limit)
dump.u_dsize = 0;
#endif
/* Make sure we have enough room to write the stack and data areas. */
#ifdef __sparc__
if (dump.u_ssize > limit)
dump.u_ssize = 0;
#else
if ((dump.u_ssize + 1) * PAGE_SIZE > limit)
dump.u_ssize = 0;
#endif
/* make sure we actually have a data and stack area to dump */
set_fs(USER_DS);
#ifdef __sparc__
if (!access_ok(VERIFY_READ, (void __user *)START_DATA(dump), dump.u_dsize))
dump.u_dsize = 0;
if (!access_ok(VERIFY_READ, (void __user *)START_STACK(dump), dump.u_ssize))
dump.u_ssize = 0;
#else
if (!access_ok(VERIFY_READ, (void __user *)START_DATA(dump), dump.u_dsize << PAGE_SHIFT))
dump.u_dsize = 0;
if (!access_ok(VERIFY_READ, (void __user *)START_STACK(dump), dump.u_ssize << PAGE_SHIFT))
dump.u_ssize = 0;
#endif
set_fs(KERNEL_DS);
/* struct user */
DUMP_WRITE(&dump,sizeof(dump));
/* Now dump all of the user data. Include malloced stuff as well */
#ifndef __sparc__
DUMP_SEEK(PAGE_SIZE);
#endif
/* now we start writing out the user space info */
set_fs(USER_DS);
/* Dump the data area */
if (dump.u_dsize != 0) {
dump_start = START_DATA(dump);
#ifdef __sparc__
dump_size = dump.u_dsize;
#else
dump_size = dump.u_dsize << PAGE_SHIFT;
#endif
DUMP_WRITE(dump_start,dump_size);
}
/* Now prepare to dump the stack area */
if (dump.u_ssize != 0) {
dump_start = START_STACK(dump);
#ifdef __sparc__
dump_size = dump.u_ssize;
#else
dump_size = dump.u_ssize << PAGE_SHIFT;
#endif
DUMP_WRITE(dump_start,dump_size);
}
/* Finally dump the task struct. Not be used by gdb, but could be useful */
@ -205,11 +170,6 @@ static unsigned long __user *create_aout_tables(char __user *p, struct linux_bin
int envc = bprm->envc;
sp = (void __user *)((-(unsigned long)sizeof(char *)) & (unsigned long) p);
#ifdef __sparc__
/* This imposes the proper stack alignment for a new process. */
sp = (void __user *) (((unsigned long) sp) & ~7);
if ((envc+argc+3)&1) --sp;
#endif
#ifdef __alpha__
/* whee.. test-programs are so much fun. */
put_user(0, --sp);
@ -302,11 +262,6 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
/* OK, This is the point of no return */
#if defined(__alpha__)
SET_AOUT_PERSONALITY(bprm, ex);
#elif defined(__sparc__)
set_personality(PER_SUNOS);
#if !defined(__sparc_v9__)
memcpy(&current->thread.core_exec, &ex, sizeof(struct exec));
#endif
#else
set_personality(PER_LINUX);
#endif
@ -322,24 +277,6 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
install_exec_creds(bprm);
current->flags &= ~PF_FORKNOEXEC;
#ifdef __sparc__
if (N_MAGIC(ex) == NMAGIC) {
loff_t pos = fd_offset;
/* Fuck me plenty... */
/* <AOL></AOL> */
down_write(&current->mm->mmap_sem);
error = do_brk(N_TXTADDR(ex), ex.a_text);
up_write(&current->mm->mmap_sem);
bprm->file->f_op->read(bprm->file, (char *) N_TXTADDR(ex),
ex.a_text, &pos);
down_write(&current->mm->mmap_sem);
error = do_brk(N_DATADDR(ex), ex.a_data);
up_write(&current->mm->mmap_sem);
bprm->file->f_op->read(bprm->file, (char *) N_DATADDR(ex),
ex.a_data, &pos);
goto beyond_if;
}
#endif
if (N_MAGIC(ex) == OMAGIC) {
unsigned long text_addr, map_size;
@ -347,7 +284,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
text_addr = N_TXTADDR(ex);
#if defined(__alpha__) || defined(__sparc__)
#ifdef __alpha__
pos = fd_offset;
map_size = ex.a_text+ex.a_data + PAGE_SIZE - 1;
#else