2002-04-06 Roland McGrath <roland@frob.com>

	* sysdeps/mach/hurd/alpha/exc2signal.c
	(_hurd_exception2signal): Rewritten.
	* sysdeps/mach/hurd/alpha/longjmp-ts.c
	(_hurd_longjmp_thread_state): Rewritten.

diff --git a/sysdeps/mach/hurd/alpha/exc2signal.c b/sysdeps/mach/hurd/alpha/exc2signal.c
index 3bceb64..5f3fbbb 100644 (file)
--- a/sysdeps/mach/hurd/alpha/exc2signal.c
+++ b/sysdeps/mach/hurd/alpha/exc2signal.c
@@ -1,5 +1,5 @@
 /* Translate Mach exception codes into signal numbers.  Alpha version.
-   Copyright (C) 1994, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1994,97,2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -25,52 +25,51 @@
    into a signal number and signal subcode.  */
 
 void
-_hurd_exception2signal (int exception, int code, int subcode,
-                       int *signo, long int *sigcode, int *error)
+_hurd_exception2signal (struct hurd_signal_detail *detail, int *signo)
 {
-  *error = 0;
+  detail->error = 0;
 
-  switch (exception)
+  switch (detail->exc)
     {
     default:
       *signo = SIGIOT;
-      *sigcode = exception;
+      detail->code = detail->exc;
       break;
 
     case EXC_BAD_ACCESS:
-      if (code == KERN_PROTECTION_FAILURE)
+      if (detail->exc_code == KERN_PROTECTION_FAILURE)
        *signo = SIGSEGV;
       else
        *signo = SIGBUS;
-      *sigcode = subcode;
-      *error = code;
+      detail->code = detail->exc_subcode;
+      detail->error = detail->exc_code;
       break;
 
     case EXC_BAD_INSTRUCTION:
       *signo = SIGILL;
-      *sigcode = code;
+      detail->code = detail->exc_code;
       break;
 
     case EXC_ARITHMETIC:
       *signo = SIGFPE;
-      *sigcode = code;
+      detail->code = detail->exc_code;
       break;
       break;
 
     case EXC_EMULATION:
       /* 3.0 doesn't give this one, why, I don't know.  */
       *signo = SIGEMT;
-      *sigcode = code;
+      detail->code = detail->exc_code;
       break;
 
     case EXC_SOFTWARE:
       *signo = SIGEMT;
-      *sigcode = code;
+      detail->code = detail->exc_code;
       break;
 
     case EXC_BREAKPOINT:
       *signo = SIGTRAP;
-      *sigcode = code;
+      detail->code = detail->exc_code;
       break;
     }
 }

diff --git a/sysdeps/mach/hurd/alpha/longjmp-ts.c b/sysdeps/mach/hurd/alpha/longjmp-ts.c
index eb27649..b271d6d 100644 (file)
--- a/sysdeps/mach/hurd/alpha/longjmp-ts.c
+++ b/sysdeps/mach/hurd/alpha/longjmp-ts.c
@@ -1,5 +1,5 @@
 /* Perform a `longjmp' on a Mach thread_state.  Alpha version.
-   Copyright (C) 1991, 1994, 1997 Free Software Foundation, Inc.
+   Copyright (C) 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -27,15 +27,22 @@
 void
 _hurd_longjmp_thread_state (void *state, jmp_buf env, int val)
 {
-  struct alpha_thread_state *ts = state;
-
-  ts->r9 = env[0].__jmpbuf[0].__9;
-  ts->r11 = env[0].__jmpbuf[0].__11;
-  ts->r12 = env[0].__jmpbuf[0].__12;
-  ts->r13 = env[0].__jmpbuf[0].__13;
-  ts->r14 = env[0].__jmpbuf[0].__14;
-  ts->r15 = (long int) env[0].__jmpbuf[0].__fp;
-  ts->r30 = (long int) env[0].__jmpbuf[0].__sp;
-  ts->pc = (long int) env[0].__jmpbuf[0].__pc;
+  struct alpha_thread_state *const ts = state;
+
+  ts->r9 = env[0].__jmpbuf[JB_S0];
+  ts->r10 = env[0].__jmpbuf[JB_S1];
+  ts->r11 = env[0].__jmpbuf[JB_S2];
+  ts->r12 = env[0].__jmpbuf[JB_S3];
+  ts->r13 = env[0].__jmpbuf[JB_S4];
+  ts->r13 = env[0].__jmpbuf[JB_S5];
+  ts->pc = env[0].__jmpbuf[JB_PC];
+  ts->r15 = env[0].__jmpbuf[JB_FP];
+  ts->r30 = env[0].__jmpbuf[JB_SP];
   ts->r0 = val ?: 1;
+
+  /* XXX
+     To mimic longjmp we ought to restore some fp registers too.
+     But those registers are in struct alpha_float_state.
+     The only use of this is in fork, and it probably won't matter.
+  */
 }