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author | Jens Axboe <jens.axboe@oracle.com> | 2010-03-19 08:05:10 +0100 |
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committer | Jens Axboe <jens.axboe@oracle.com> | 2010-03-19 08:05:10 +0100 |
commit | b4b7a4ef097f288f724420b473dbf92a89c0ab7e (patch) | |
tree | 23ad8101e3e77c32a8d1e1b95a9c1cd7f7a475b7 /arch/xtensa/kernel/ptrace.c | |
parent | e9ce335df51ff782035a15c261a3c0c9892a1767 (diff) | |
parent | a3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff) | |
download | linux-b4b7a4ef097f288f724420b473dbf92a89c0ab7e.tar.gz linux-b4b7a4ef097f288f724420b473dbf92a89c0ab7e.tar.bz2 linux-b4b7a4ef097f288f724420b473dbf92a89c0ab7e.zip |
Merge branch 'master' into for-linus
Conflicts:
block/Kconfig
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'arch/xtensa/kernel/ptrace.c')
-rw-r--r-- | arch/xtensa/kernel/ptrace.c | 56 |
1 files changed, 11 insertions, 45 deletions
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c index 9486882ef0af..9d4e1ceb3f09 100644 --- a/arch/xtensa/kernel/ptrace.c +++ b/arch/xtensa/kernel/ptrace.c @@ -30,6 +30,17 @@ #include <asm/elf.h> #include <asm/coprocessor.h> + +void user_enable_single_step(struct task_struct *child) +{ + child->ptrace |= PT_SINGLESTEP; +} + +void user_disable_single_step(struct task_struct *child) +{ + child->ptrace &= ~PT_SINGLESTEP; +} + /* * Called by kernel/ptrace.c when detaching to disable single stepping. */ @@ -268,51 +279,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) ret = ptrace_pokeusr(child, addr, data); break; - /* continue and stop at next (return from) syscall */ - - case PTRACE_SYSCALL: - case PTRACE_CONT: /* restart after signal. */ - { - ret = -EIO; - if (!valid_signal(data)) - break; - if (request == PTRACE_SYSCALL) - set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - else - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - child->exit_code = data; - /* Make sure the single step bit is not set. */ - child->ptrace &= ~PT_SINGLESTEP; - wake_up_process(child); - ret = 0; - break; - } - - /* - * make the child exit. Best I can do is send it a sigkill. - * perhaps it should be put in the status that it wants to - * exit. - */ - case PTRACE_KILL: - ret = 0; - if (child->exit_state == EXIT_ZOMBIE) /* already dead */ - break; - child->exit_code = SIGKILL; - child->ptrace &= ~PT_SINGLESTEP; - wake_up_process(child); - break; - - case PTRACE_SINGLESTEP: - ret = -EIO; - if (!valid_signal(data)) - break; - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - child->ptrace |= PT_SINGLESTEP; - child->exit_code = data; - wake_up_process(child); - ret = 0; - break; - case PTRACE_GETREGS: ret = ptrace_getregs(child, (void __user *) data); break; |