From: Matt Waddel <[EMAIL PROTECTED]> Fix the system call code for handling syscall tracing, so strace and gdbserver work properly.
This fix originally developed by Philippe De Muyter and Stuart Hughes. Signed-off-by: Greg Ungerer <[EMAIL PROTECTED]> --- diff -Naurp linux-2.6.23/arch/m68knommu/platform/5307/entry.S linux-2.6.23-uc0/arch/m68knommu/platform/5307/entry.S --- linux-2.6.23/arch/m68knommu/platform/5307/entry.S 2007-10-19 10:30:55.000000000 +1000 +++ linux-2.6.23-uc0/arch/m68knommu/platform/5307/entry.S 2007-10-19 10:35:40.000000000 +1000 @@ -74,7 +74,8 @@ ENTRY(system_call) movel %sp,%d2 /* get thread_info pointer */ andl #-THREAD_SIZE,%d2 /* at start of kernel stack */ movel %d2,%a0 - movel %sp,%a0@(THREAD_ESP0) /* save top of frame */ + movel %a0@,%a1 /* save top of frame */ + movel %sp,%a1@(TASK_THREAD+THREAD_ESP0) btst #(TIF_SYSCALL_TRACE%8),%a0@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8) bnes 1f @@ -83,6 +84,8 @@ ENTRY(system_call) movel %d0,%sp@(PT_D0) /* save the return value */ jra ret_from_exception 1: + movel #-ENOSYS,%d2 /* strace needs -ENOSYS in PT_D0 */ + movel %d2,PT_D0(%sp) /* on syscall entry */ subql #4,%sp SAVE_SWITCH_STACK jbsr syscall_trace - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/