patch-2.4.25 linux-2.4.25/include/asm-ppc64/ptrace.h

• Lines: 50
• Date: 2004-02-18 05:36:32.000000000 -0800
• Orig file: linux-2.4.24/include/asm-ppc64/ptrace.h
• Orig date: 2003-06-13 07:51:38.000000000 -0700

diff -urN linux-2.4.24/include/asm-ppc64/ptrace.h linux-2.4.25/include/asm-ppc64/ptrace.h
@@ -16,7 +16,7 @@
  * that the overall structure is a multiple of 16 bytes in length.
  *
  * Note that the offsets of the fields in this struct correspond with
- * the PT_* values below.  This simplifies arch/ppc/kernel/ptrace.c.
+ * the PT_* values below.  This simplifies arch/ppc64/kernel/ptrace.c.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -66,7 +66,11 @@
 
 #define STACK_FRAME_OVERHEAD	112	/* size of minimum stack frame */
 
-/* Size of dummy stack frame allocated when calling signal handler. */
+/*
+ * Size of dummy stack frame allocated when calling signal handler.
+ * These *MUST* be multiples of 16 since the ABI requires stack frames
+ * be quadword aligned.
+ */
 #define __SIGNAL_FRAMESIZE	128
 #define __SIGNAL_FRAMESIZE32	64
 
@@ -122,11 +126,14 @@
 #define PT_RESULT 43
 
 #define PT_FPR0	48
+
+/* Kernel and userspace will both use this PT_FPSCR value.  32-bit apps will have
+ * visibility to the asm-ppc/ptrace.h header instead of this one.
+ */
+#define PT_FPSCR (PT_FPR0 + 32 + 1)	  /* each FP reg occupies 1 slot in 64-bit space */
+
 #ifdef __KERNEL__
-#define PT_FPSCR (PT_FPR0 + 32 + 1)	  /* each FP reg occupies 1 slot in this space */
-#define PT_FPSCR32 (PT_FPR0 + 2*32 + 1)	  /* To the 32-bit user - each FP reg occupies 2 slots in this space */
-#else
-#define PT_FPSCR (PT_FPR0 + 2*32 + 1)	/* each FP reg occupies 2 slots in this space -- Fix when 64-bit apps. */
+#define PT_FPSCR32 (PT_FPR0 + 2*32 + 1)	  /* each FP reg occupies 2 32-bit userspace slots */
 #endif
 
 /* Additional PTRACE requests implemented on PowerPC. */
@@ -141,5 +148,8 @@
 #define PPC_PTRACE_PEEKUSR_3264   0x91  /* Read a register (specified by ADDR) out of the "user area" on a 64-bit process from a 32-bit process. */
 #define PPC_PTRACE_POKEUSR_3264   0x90  /* Write DATA into location ADDR within the "user area" on a 64-bit process from a 32-bit process. */
 
+/* Get/set all the altivec registers vr0..vr31, vscr, vrsave, in one go */
+#define PTRACE_GETVRREGS	18
+#define PTRACE_SETVRREGS	19
 
 #endif /* _PPC64_PTRACE_H */