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Commit 63843c26 authored by Jeff Dike's avatar Jeff Dike Committed by Linus Torvalds
Browse files

uml: dump core on panic 



Dump core after a panic.  This will provide better debugging information than
is currently available.

Signed-off-by: default avatarJeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 990c5587

arch/um/include/os.h

+1 −0
Original line number Diff line number Diff line
@@ -279,6 +279,7 @@ extern int raw(int fd); 
extern void setup_machinename(char *machine_out);

extern void setup_hostinfo(char *buf, int len);

extern int setjmp_wrapper(void (*proc)(void *, void *), ...);

extern void os_dump_core(void);



/* time.c */

#define BILLION (1000 * 1000 * 1000)

arch/um/kernel/um_arch.c

+1 −1
Original line number Diff line number Diff line
@@ -474,7 +474,7 @@ static int panic_exit(struct notifier_block *self, unsigned long unused1, 
	show_regs(&(current->thread.regs));

	bust_spinlocks(0);

	uml_exitcode = 1;

	machine_halt();

	os_dump_core();

	return 0;

}

arch/um/os-Linux/util.c

+6 −0
Original line number Diff line number Diff line
@@ -119,3 +119,9 @@ int setjmp_wrapper(void (*proc)(void *, void *), ...) 
	va_end(args);

	return n;

}



void os_dump_core(void)

{

	signal(SIGSEGV, SIG_DFL);

	abort();

}