patch-2.2.14 linux/include/asm-s390/ptrace.h
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- Lines: 327
- Date:
Tue Jan 4 10:12:24 2000
- Orig file:
v2.2.13/linux/include/asm-s390/ptrace.h
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.2.13/linux/include/asm-s390/ptrace.h linux/include/asm-s390/ptrace.h
@@ -0,0 +1,326 @@
+/*
+ * include/asm-s390/ptrace.h
+ *
+ * S390 version
+ * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ */
+
+#ifndef _S390_PTRACE_H
+#define _S390_PTRACE_H
+#include <asm/s390-regs-common.h>
+#include <asm/current.h>
+#include <linux/types.h>
+#include <asm/setup.h>
+#include <linux/stddef.h>
+
+
+#define S390_REGS \
+S390_REGS_COMMON \
+__u32 orig_gpr2;
+
+typedef struct
+{
+ S390_REGS
+} s390_regs;
+
+struct pt_regs
+{
+ S390_REGS
+ long trap;
+};
+
+#if CONFIG_REMOTE_DEBUG
+typedef struct
+{
+ S390_REGS
+ long trap;
+ __u32 crs[16];
+ s390_fp_regs fp_regs;
+} gdb_pt_regs;
+#endif
+
+
+typedef struct
+{
+ __u32 cr[3];
+} per_cr_words __attribute__((packed));
+
+#define PER_EM_MASK 0xE8000000
+typedef struct
+{
+ unsigned em_branching:1;
+ unsigned em_instruction_fetch:1;
+ /* Switching on storage alteration automatically fixes
+ the storage alteration event bit in the users std. */
+ unsigned em_storage_alteration:1;
+ unsigned em_gpr_alt_unused:1;
+ unsigned em_store_real_address:1;
+ unsigned :3;
+ unsigned branch_addr_ctl:1;
+ unsigned :1;
+ unsigned storage_alt_space_ctl:1;
+ unsigned :5;
+ unsigned :16;
+ __u32 starting_addr;
+ __u32 ending_addr;
+} per_cr_bits __attribute__((packed));
+
+typedef struct
+{
+ __u16 perc_atmid; /* 0x096 */
+ __u32 address; /* 0x098 */
+ __u8 access_id; /* 0x0a1 */
+} per_lowcore_words __attribute__((packed));
+
+typedef struct
+{
+ unsigned perc_branching:1; /* 0x096 */
+ unsigned perc_instruction_fetch:1;
+ unsigned perc_storage_alteration:1;
+ unsigned perc_gpr_alt_unused:1;
+ unsigned perc_store_real_address:1;
+ unsigned :3;
+ unsigned :1;
+ unsigned atmid:5;
+ unsigned si:2;
+ __u32 address; /* 0x098 */
+ unsigned :4; /* 0x0a1 */
+ unsigned access_id:4;
+} per_lowcore_bits __attribute__((packed));
+
+typedef struct
+{
+ union
+ {
+ per_cr_words words;
+ per_cr_bits bits;
+ } control_regs __attribute__((packed));
+ /* 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_words words;
+ per_lowcore_bits bits;
+ } lowcore;
+} per_struct __attribute__((packed));
+
+
+
+/* this struct defines the way the registers are stored on the
+ stack during a system call. If you change the pt_regs structure,
+ you'll need to change user.h too.
+
+ N.B. if you modify the pt_regs struct the strace command also has to be
+ modified & recompiled ( just wait till we have gdb going ).
+
+*/
+
+struct user_regs_struct
+{
+ S390_REGS
+ s390_fp_regs fp_regs;
+/* These per registers are in here so that gdb can modify them itself
+ * as there is no "official" ptrace interface for hardware watchpoints.
+ * this is the way intel does it
+ */
+ per_struct per_info;
+};
+
+typedef struct user_regs_struct user_regs_struct;
+
+typedef struct pt_regs pt_regs;
+
+#ifdef __KERNEL__
+#define user_mode(regs) ((regs)->psw.mask & PSW_PROBLEM_STATE)
+#define instruction_pointer(regs) ((regs)->psw.addr)
+
+struct thread_struct;
+extern int sprintf_regs(int line,char *buff,struct task_struct * task,
+ struct thread_struct *tss,struct pt_regs * regs);
+extern void show_regs(struct task_struct * task,struct thread_struct *tss,
+ struct pt_regs * regs);
+#endif
+
+
+
+
+
+#define FIX_PSW(addr) ((unsigned long)(addr)|0x80000000UL)
+
+#define MULT_PROCPTR_TYPES ((CONFIG_BINFMT_ELF)&&(CONFIG_BINFMT_TOC))
+
+typedef struct
+{
+ long addr;
+ long toc;
+} routine_descriptor;
+extern void fix_routine_descriptor_regs(routine_descriptor *rdes,pt_regs *regs);
+extern __inline__ void
+fix_routine_descriptor_regs(routine_descriptor *rdes,pt_regs *regs)
+{
+ regs->psw.addr=FIX_PSW(rdes->addr);
+ regs->gprs[12]=rdes->toc;
+}
+
+/*
+ * Compiler optimisation should save this stuff from being non optimal
+ * & remove uneccessary code ( isnt gcc great DJB. )
+ */
+
+/*I'm just using this an indicator of what binformat we are using
+ * (DJB) N.B. this needs to stay a macro unfortunately as I am otherwise
+ * dereferencing incomplete pointer types in with load_toc_binary
+ */
+#if MULT_PROCPTR_TYPES
+#define uses_routine_descriptors() \
+(current->binfmt->load_binary==load_toc_binary)
+#else
+#if CONFIG_BINFMT_TOC
+#define uses_routine_descriptors() 1
+#else
+#define uses_routine_descriptors() 0
+#endif
+#endif
+
+#define pt_off(ptreg) offsetof(user_regs_struct,ptreg)
+enum
+{
+ PT_PSWMASK=pt_off(psw.mask),
+ PT_PSWADDR=pt_off(psw.addr),
+ PT_GPR0=pt_off(gprs[0]),
+ PT_GPR1=pt_off(gprs[1]),
+ PT_GPR2=pt_off(gprs[2]),
+ PT_GPR3=pt_off(gprs[3]),
+ PT_GPR4=pt_off(gprs[4]),
+ PT_GPR5=pt_off(gprs[5]),
+ PT_GPR6=pt_off(gprs[6]),
+ PT_GPR7=pt_off(gprs[7]),
+ PT_GPR8=pt_off(gprs[8]),
+ PT_GPR9=pt_off(gprs[9]),
+ PT_GPR10=pt_off(gprs[10]),
+ PT_GPR11=pt_off(gprs[11]),
+ PT_GPR12=pt_off(gprs[12]),
+ PT_GPR13=pt_off(gprs[13]),
+ PT_GPR14=pt_off(gprs[14]),
+ PT_GPR15=pt_off(gprs[15]),
+ PT_ACR0=pt_off(acrs[0]),
+ PT_ACR1=pt_off(acrs[1]),
+ PT_ACR2=pt_off(acrs[2]),
+ PT_ACR3=pt_off(acrs[3]),
+ PT_ACR4=pt_off(acrs[4]),
+ PT_ACR5=pt_off(acrs[5]),
+ PT_ACR6=pt_off(acrs[6]),
+ PT_ACR7=pt_off(acrs[7]),
+ PT_ACR8=pt_off(acrs[8]),
+ PT_ACR9=pt_off(acrs[9]),
+ PT_ACR10=pt_off(acrs[10]),
+ PT_ACR11=pt_off(acrs[11]),
+ PT_ACR12=pt_off(acrs[12]),
+ PT_ACR13=pt_off(acrs[13]),
+ PT_ACR14=pt_off(acrs[14]),
+ PT_ACR15=pt_off(acrs[15]),
+ PT_ORIGGPR2=pt_off(orig_gpr2),
+ PT_FPC=pt_off(fp_regs.fpc),
+/*
+ * A nasty fact of life that the ptrace api
+ * only supports passing of longs.
+ */
+ PT_FPR0_HI=pt_off(fp_regs.fprs[0].fp.hi),
+ PT_FPR0_LO=pt_off(fp_regs.fprs[0].fp.lo),
+ PT_FPR1_HI=pt_off(fp_regs.fprs[1].fp.hi),
+ PT_FPR1_LO=pt_off(fp_regs.fprs[1].fp.lo),
+ PT_FPR2_HI=pt_off(fp_regs.fprs[2].fp.hi),
+ PT_FPR2_LO=pt_off(fp_regs.fprs[2].fp.lo),
+ PT_FPR3_HI=pt_off(fp_regs.fprs[3].fp.hi),
+ PT_FPR3_LO=pt_off(fp_regs.fprs[3].fp.lo),
+ PT_FPR4_HI=pt_off(fp_regs.fprs[4].fp.hi),
+ PT_FPR4_LO=pt_off(fp_regs.fprs[4].fp.lo),
+ PT_FPR5_HI=pt_off(fp_regs.fprs[5].fp.hi),
+ PT_FPR5_LO=pt_off(fp_regs.fprs[5].fp.lo),
+ PT_FPR6_HI=pt_off(fp_regs.fprs[6].fp.hi),
+ PT_FPR6_LO=pt_off(fp_regs.fprs[6].fp.lo),
+ PT_FPR7_HI=pt_off(fp_regs.fprs[7].fp.hi),
+ PT_FPR7_LO=pt_off(fp_regs.fprs[7].fp.lo),
+ PT_FPR8_HI=pt_off(fp_regs.fprs[8].fp.hi),
+ PT_FPR8_LO=pt_off(fp_regs.fprs[8].fp.lo),
+ PT_FPR9_HI=pt_off(fp_regs.fprs[9].fp.hi),
+ PT_FPR9_LO=pt_off(fp_regs.fprs[9].fp.lo),
+ PT_FPR10_HI=pt_off(fp_regs.fprs[10].fp.hi),
+ PT_FPR10_LO=pt_off(fp_regs.fprs[10].fp.lo),
+ PT_FPR11_HI=pt_off(fp_regs.fprs[11].fp.hi),
+ PT_FPR11_LO=pt_off(fp_regs.fprs[11].fp.lo),
+ PT_FPR12_HI=pt_off(fp_regs.fprs[12].fp.hi),
+ PT_FPR12_LO=pt_off(fp_regs.fprs[12].fp.lo),
+ PT_FPR13_HI=pt_off(fp_regs.fprs[13].fp.hi),
+ PT_FPR13_LO=pt_off(fp_regs.fprs[13].fp.lo),
+ PT_FPR14_HI=pt_off(fp_regs.fprs[14].fp.hi),
+ PT_FPR14_LO=pt_off(fp_regs.fprs[14].fp.lo),
+ PT_FPR15_HI=pt_off(fp_regs.fprs[15].fp.hi),
+ PT_FPR15_LO=pt_off(fp_regs.fprs[15].fp.lo),
+ PT_CR_9=pt_off(per_info.control_regs.words.cr[0]),
+ PT_CR_10=pt_off(per_info.control_regs.words.cr[1]),
+ PT_CR_11=pt_off(per_info.control_regs.words.cr[2]),
+ PT_LASTOFF=PT_CR_11,
+ PT_ENDREGS=offsetof(user_regs_struct,per_info.lowcore.words.perc_atmid)
+};
+
+#define PTRACE_AREA \
+__u32 len; \
+addr_t kernel_addr; \
+addr_t process_addr;
+
+typedef struct
+{
+ PTRACE_AREA
+} ptrace_area;
+
+/*
+ 390 specific non posix ptrace requests
+ I chose unusual values so they are unlikely to clash with future ptrace definitions.
+ */
+#define PTRACE_PEEKUSR_AREA 0x5000
+#define PTRACE_POKEUSR_AREA 0x5001
+#define PTRACE_PEEKTEXT_AREA 0x5002
+#define PTRACE_PEEKDATA_AREA 0x5003
+#define PTRACE_POKETEXT_AREA 0x5004
+#define PTRACE_POKEDATA_AREA 0x5005
+/* PT_PROT definition is loosely based on hppa bsd definition in gdb/hppab-nat.c */
+#define PTRACE_PROT 21
+
+typedef enum
+{
+ ptprot_set_access_watchpoint,
+ ptprot_set_write_watchpoint,
+ ptprot_disable_watchpoint
+} ptprot_flags;
+
+typedef struct
+{
+ addr_t lowaddr;
+ addr_t hiaddr;
+ ptprot_flags prot;
+} ptprot_area;
+#endif
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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