From 5e9a26928f550157563cfc06ce12c4ae121a02ec Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 5 Jan 2011 12:48:10 +0100 Subject: [S390] ptrace cleanup Overhaul program event recording and the code dealing with the ptrace user space interface. Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/compat_ptrace.h | 53 ++++++++++++---------------------------- 1 file changed, 16 insertions(+), 37 deletions(-) (limited to 'arch/s390/kernel/compat_ptrace.h') diff --git a/arch/s390/kernel/compat_ptrace.h b/arch/s390/kernel/compat_ptrace.h index 3141025724f4..12b823833510 100644 --- a/arch/s390/kernel/compat_ptrace.h +++ b/arch/s390/kernel/compat_ptrace.h @@ -4,40 +4,19 @@ #include /* needed for NUM_CR_WORDS */ #include "compat_linux.h" /* needed for psw_compat_t */ -typedef struct { - __u32 cr[NUM_CR_WORDS]; -} per_cr_words32; - -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 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 */ +}; -struct user_regs_struct32 +struct compat_user_regs_struct { psw_compat_t psw; u32 gprs[NUM_GPRS]; @@ -50,14 +29,14 @@ struct user_regs_struct32 * 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 @@ typedef struct __u32 len; __u32 kernel_addr; __u32 process_addr; -} ptrace_area_emu31; +} compat_ptrace_area; #endif /* _PTRACE32_H */ -- cgit v1.2.3