diff options
Diffstat (limited to 'arch/x86/um/shared/sysdep/faultinfo_32.h')
| -rw-r--r-- | arch/x86/um/shared/sysdep/faultinfo_32.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/x86/um/shared/sysdep/faultinfo_32.h b/arch/x86/um/shared/sysdep/faultinfo_32.h index a26086b8a800..9193a7790a71 100644 --- a/arch/x86/um/shared/sysdep/faultinfo_32.h +++ b/arch/x86/um/shared/sysdep/faultinfo_32.h @@ -27,9 +27,18 @@ struct faultinfo { /* This is Page Fault */ #define SEGV_IS_FIXABLE(fi) ((fi)->trap_no == 14) -/* SKAS3 has no trap_no on i386, but get_skas_faultinfo() sets it to 0. */ -#define SEGV_MAYBE_FIXABLE(fi) ((fi)->trap_no == 0 && ptrace_faultinfo) - #define PTRACE_FULL_FAULTINFO 0 +#define ___backtrack_faulted(_faulted) \ + asm volatile ( \ + "movl $__get_kernel_nofault_faulted_%=,%1\n" \ + "mov $0, %0\n" \ + "jmp _end_%=\n" \ + "__get_kernel_nofault_faulted_%=:\n" \ + "mov $1, %0;" \ + "_end_%=:" \ + : "=r" (_faulted), \ + "=m" (current->thread.segv_continue) :: \ + ) + #endif |