[PATCH] uml: skas0 stubs now check system call return values
Change syscall-stub's data to include a "expected retval".
Stub now checks syscalls retval and aborts execution of syscall list, if
retval != expected retval.
run_syscall_stub prints the data of the failed syscall, using the data pointer
and retval written by the stub to the beginning of the stack.
one_syscall_stub is removed, to simplify code, because only some instructions
are saved by one_syscall_stub, no host-syscall.
Using the stub with additional data (modify_ldt via stub)
is prepared also.
Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/um/include/tlb.h b/arch/um/include/tlb.h
index 2deefb9..45d7da6 100644
--- a/arch/um/include/tlb.h
+++ b/arch/um/include/tlb.h
@@ -38,9 +38,9 @@
extern void force_flush_all(void);
extern void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
unsigned long end_addr, int force,
- void *(*do_ops)(union mm_context *,
- struct host_vm_op *, int, int,
- void *));
+ int (*do_ops)(union mm_context *,
+ struct host_vm_op *, int, int,
+ void **));
extern int flush_tlb_kernel_range_common(unsigned long start,
unsigned long end);