[S390] ptrace cleanup
Overhaul program event recording and the code dealing with the ptrace
user space interface.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/kernel/compat_ptrace.h b/arch/s390/kernel/compat_ptrace.h
index 3141025..12b8238 100644
--- a/arch/s390/kernel/compat_ptrace.h
+++ b/arch/s390/kernel/compat_ptrace.h
@@ -4,40 +4,19 @@
#include <asm/ptrace.h> /* needed for NUM_CR_WORDS */
#include "compat_linux.h" /* needed for psw_compat_t */
-typedef struct {
- __u32 cr[NUM_CR_WORDS];
-} per_cr_words32;
+struct compat_per_struct_kernel {
+ __u32 cr9; /* PER control bits */
+ __u32 cr10; /* PER starting address */
+ __u32 cr11; /* PER ending address */
+ __u32 bits; /* Obsolete software bits */
+ __u32 starting_addr; /* User specified start address */
+ __u32 ending_addr; /* User specified end address */
+ __u16 perc_atmid; /* PER trap ATMID */
+ __u32 address; /* PER trap instruction address */
+ __u8 access_id; /* PER trap access identification */
+};
-typedef struct {
- __u16 perc_atmid; /* 0x096 */
- __u32 address; /* 0x098 */
- __u8 access_id; /* 0x0a1 */
-} per_lowcore_words32;
-
-typedef struct {
- union {
- per_cr_words32 words;
- } control_regs;
- /*
- * Use these flags instead of setting em_instruction_fetch
- * directly they are used so that single stepping can be
- * switched on & off while not affecting other tracing
- */
- unsigned single_step : 1;
- unsigned instruction_fetch : 1;
- unsigned : 30;
- /*
- * These addresses are copied into cr10 & cr11 if single
- * stepping is switched off
- */
- __u32 starting_addr;
- __u32 ending_addr;
- union {
- per_lowcore_words32 words;
- } lowcore;
-} per_struct32;
-
-struct user_regs_struct32
+struct compat_user_regs_struct
{
psw_compat_t psw;
u32 gprs[NUM_GPRS];
@@ -50,14 +29,14 @@
* itself as there is no "official" ptrace interface for hardware
* watchpoints. This is the way intel does it.
*/
- per_struct32 per_info;
+ struct compat_per_struct_kernel per_info;
u32 ieee_instruction_pointer; /* obsolete, always 0 */
};
-struct user32 {
+struct compat_user {
/* We start with the registers, to mimic the way that "memory"
is returned from the ptrace(3,...) function. */
- struct user_regs_struct32 regs; /* Where the registers are actually stored */
+ struct compat_user_regs_struct regs;
/* The rest of this junk is to help gdb figure out what goes where */
u32 u_tsize; /* Text segment size (pages). */
u32 u_dsize; /* Data segment size (pages). */
@@ -79,6 +58,6 @@
__u32 len;
__u32 kernel_addr;
__u32 process_addr;
-} ptrace_area_emu31;
+} compat_ptrace_area;
#endif /* _PTRACE32_H */
