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Message-Id: <E1LJ0k1-0006Ou-2B@ZenIV.linux.org.uk>
Date: Sat, 03 Jan 2009 07:16:13 +0000
From: Al Viro <viro@....linux.org.uk>
To: torvalds@...ux-foundation.org
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH] remove the rudiment of a.out for sparc
it's been used only in sunos compat
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
fs/binfmt_aout.c | 65 +-----------------------------------------------------
1 files changed, 1 insertions(+), 64 deletions(-)
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index f1f3f41..8a3b32f 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -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(¤t->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(¤t->mm->mmap_sem);
- error = do_brk(N_TXTADDR(ex), ex.a_text);
- up_write(¤t->mm->mmap_sem);
- bprm->file->f_op->read(bprm->file, (char *) N_TXTADDR(ex),
- ex.a_text, &pos);
- down_write(¤t->mm->mmap_sem);
- error = do_brk(N_DATADDR(ex), ex.a_data);
- up_write(¤t->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
--
1.5.6.5
--
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