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Diffstat (limited to 'arch/x86/ia32/ia32_aout.c')
-rw-r--r--arch/x86/ia32/ia32_aout.c157
1 files changed, 0 insertions, 157 deletions
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index f65b78d32f5e..3c135084e1eb 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -39,82 +39,10 @@
static int load_aout_binary(struct linux_binprm *);
static int load_aout_library(struct file *);
-#ifdef CONFIG_COREDUMP
-static int aout_core_dump(struct coredump_params *);
-
-static unsigned long get_dr(int n)
-{
- struct perf_event *bp = current->thread.ptrace_bps[n];
- return bp ? bp->hw.info.address : 0;
-}
-
-/*
- * fill in the user structure for a core dump..
- */
-static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
-{
- u32 fs, gs;
- memset(dump, 0, sizeof(*dump));
-
-/* changed the size calculations - should hopefully work better. lbt */
- dump->magic = CMAGIC;
- dump->start_code = 0;
- dump->start_stack = regs->sp & ~(PAGE_SIZE - 1);
- dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
- dump->u_dsize = ((unsigned long)
- (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
- dump->u_dsize -= dump->u_tsize;
- dump->u_debugreg[0] = get_dr(0);
- dump->u_debugreg[1] = get_dr(1);
- dump->u_debugreg[2] = get_dr(2);
- dump->u_debugreg[3] = get_dr(3);
- dump->u_debugreg[6] = current->thread.debugreg6;
- dump->u_debugreg[7] = current->thread.ptrace_dr7;
-
- if (dump->start_stack < 0xc0000000) {
- unsigned long tmp;
-
- tmp = (unsigned long) (0xc0000000 - dump->start_stack);
- dump->u_ssize = tmp >> PAGE_SHIFT;
- }
-
- dump->regs.ebx = regs->bx;
- dump->regs.ecx = regs->cx;
- dump->regs.edx = regs->dx;
- dump->regs.esi = regs->si;
- dump->regs.edi = regs->di;
- dump->regs.ebp = regs->bp;
- dump->regs.eax = regs->ax;
- dump->regs.ds = current->thread.ds;
- dump->regs.es = current->thread.es;
- savesegment(fs, fs);
- dump->regs.fs = fs;
- savesegment(gs, gs);
- dump->regs.gs = gs;
- dump->regs.orig_eax = regs->orig_ax;
- dump->regs.eip = regs->ip;
- dump->regs.cs = regs->cs;
- dump->regs.eflags = regs->flags;
- dump->regs.esp = regs->sp;
- dump->regs.ss = regs->ss;
-
-#if 1 /* FIXME */
- dump->u_fpvalid = 0;
-#else
- dump->u_fpvalid = dump_fpu(regs, &dump->i387);
-#endif
-}
-
-#endif
-
static struct linux_binfmt aout_format = {
.module = THIS_MODULE,
.load_binary = load_aout_binary,
.load_shlib = load_aout_library,
-#ifdef CONFIG_COREDUMP
- .core_dump = aout_core_dump,
-#endif
- .min_coredump = PAGE_SIZE
};
static int set_brk(unsigned long start, unsigned long end)
@@ -126,91 +54,6 @@ static int set_brk(unsigned long start, unsigned long end)
return vm_brk(start, end - start);
}
-#ifdef CONFIG_COREDUMP
-/*
- * These are the only things you should do on a core-file: use only these
- * macros to write out all the necessary info.
- */
-
-#include <linux/coredump.h>
-
-#define START_DATA(u) (u.u_tsize << PAGE_SHIFT)
-#define START_STACK(u) (u.start_stack)
-
-/*
- * Routine writes a core dump image in the current directory.
- * Currently only a stub-function.
- *
- * Note that setuid/setgid files won't make a core-dump if the uid/gid
- * changed due to the set[u|g]id. It's enforced by the "current->mm->dumpable"
- * field, which also makes sure the core-dumps won't be recursive if the
- * dumping of the process results in another error..
- */
-
-static int aout_core_dump(struct coredump_params *cprm)
-{
- mm_segment_t fs;
- int has_dumped = 0;
- unsigned long dump_start, dump_size;
- struct user32 dump;
-
- fs = get_fs();
- set_fs(KERNEL_DS);
- has_dumped = 1;
- strncpy(dump.u_comm, current->comm, sizeof(current->comm));
- dump.u_ar0 = offsetof(struct user32, regs);
- dump.signal = cprm->siginfo->si_signo;
- dump_thread32(cprm->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.
- */
- if ((dump.u_dsize + dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
- dump.u_dsize = 0;
-
- /* Make sure we have enough room to write the stack and data areas. */
- if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
- dump.u_ssize = 0;
-
- /* make sure we actually have a data and stack area to dump */
- set_fs(USER_DS);
- if (!access_ok((void *) (unsigned long)START_DATA(dump),
- dump.u_dsize << PAGE_SHIFT))
- dump.u_dsize = 0;
- if (!access_ok((void *) (unsigned long)START_STACK(dump),
- dump.u_ssize << PAGE_SHIFT))
- dump.u_ssize = 0;
-
- set_fs(KERNEL_DS);
- /* struct user */
- if (!dump_emit(cprm, &dump, sizeof(dump)))
- goto end_coredump;
- /* Now dump all of the user data. Include malloced stuff as well */
- if (!dump_skip(cprm, PAGE_SIZE - sizeof(dump)))
- goto end_coredump;
- /* 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);
- dump_size = dump.u_dsize << PAGE_SHIFT;
- if (!dump_emit(cprm, (void *)dump_start, dump_size))
- goto end_coredump;
- }
- /* Now prepare to dump the stack area */
- if (dump.u_ssize != 0) {
- dump_start = START_STACK(dump);
- dump_size = dump.u_ssize << PAGE_SHIFT;
- if (!dump_emit(cprm, (void *)dump_start, dump_size))
- goto end_coredump;
- }
-end_coredump:
- set_fs(fs);
- return has_dumped;
-}
-#endif
/*
* create_aout_tables() parses the env- and arg-strings in new user
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-17 05:57:35 +0300