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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-10-25 16:10:41 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-10-25 16:10:20 +0200 |
| commit | ba6cadfebc18f786ef4e60e9ff03f9656ce3d584 (patch) | |
| tree | 9e606198947762e077035676ee6f1099bb8fa7d1 | |
| parent | baa071588c3ffcc1a8721faf9337140e85d34bf6 (diff) | |
| download | linux-ba6cadfebc18f786ef4e60e9ff03f9656ce3d584.tar.bz2 | |
[S390] remove ieee_instruction_pointer from thread_struct
The ieee_instruction_pointer can not be read from user space anymore
since git commit 613e1def6b52c399a8b72a5e11bc2e57d2546fb8, the ptrace
interface always returns zero. Remove it from the thread_struct. It
is still present in the user_regs_struct for compatability reasons.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | arch/s390/include/asm/processor.h | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/ptrace.h | 3 | ||||
| -rw-r--r-- | arch/s390/kernel/compat_ptrace.h | 3 | ||||
| -rw-r--r-- | arch/s390/kernel/traps.c | 1 |
4 files changed, 2 insertions, 7 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 73e259834e10..8d6f87169577 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -82,8 +82,6 @@ struct thread_struct { unsigned long prot_addr; /* address of protection-excep. */ unsigned int trap_no; per_struct per_info; - /* Used to give failing instruction back to user for ieee exceptions */ - unsigned long ieee_instruction_pointer; /* pfault_wait is used to block the process on a pfault event */ unsigned long pfault_wait; }; diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h index e2c218dc68a6..d9d42b1e46fa 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -481,8 +481,7 @@ struct user_regs_struct * watchpoints. This is the way intel does it. */ per_struct per_info; - unsigned long ieee_instruction_pointer; - /* Used to give failing instruction back to user for ieee exceptions */ + unsigned long ieee_instruction_pointer; /* obsolete, always 0 */ }; #ifdef __KERNEL__ diff --git a/arch/s390/kernel/compat_ptrace.h b/arch/s390/kernel/compat_ptrace.h index 123dd660d7fb..3141025724f4 100644 --- a/arch/s390/kernel/compat_ptrace.h +++ b/arch/s390/kernel/compat_ptrace.h @@ -51,8 +51,7 @@ struct user_regs_struct32 * watchpoints. This is the way intel does it. */ per_struct32 per_info; - u32 ieee_instruction_pointer; - /* Used to give failing instruction back to user for ieee exceptions */ + u32 ieee_instruction_pointer; /* obsolete, always 0 */ }; struct user32 { diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index e9b063e7d75f..70640822621a 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -447,7 +447,6 @@ static inline void do_fp_trap(struct pt_regs *regs, void __user *location, else if (fpc & 0x0800) /* inexact */ si.si_code = FPE_FLTRES; } - current->thread.ieee_instruction_pointer = (addr_t) location; do_trap(pgm_int_code, SIGFPE, "floating point exception", regs, &si); } |