diff options
Diffstat (limited to 'arch/xtensa')
-rw-r--r-- | arch/xtensa/include/asm/pci.h | 8 | ||||
-rw-r--r-- | arch/xtensa/include/asm/ptrace.h | 1 | ||||
-rw-r--r-- | arch/xtensa/kernel/ptrace.c | 56 |
3 files changed, 12 insertions, 53 deletions
diff --git a/arch/xtensa/include/asm/pci.h b/arch/xtensa/include/asm/pci.h index 66410acf18b4..4609b0f15f1f 100644 --- a/arch/xtensa/include/asm/pci.h +++ b/arch/xtensa/include/asm/pci.h @@ -56,14 +56,6 @@ struct pci_dev; #define PCI_DMA_BUS_IS_PHYS (1) -/* pci_unmap_{page,single} is a no-op, so */ -#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) -#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) -#define pci_unmap_addr(PTR, ADDR_NAME) (0) -#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) -#define pci_ubnmap_len(PTR, LEN_NAME) (0) -#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) - /* Map a range of PCI memory or I/O space for a device into user space */ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine); diff --git a/arch/xtensa/include/asm/ptrace.h b/arch/xtensa/include/asm/ptrace.h index 905e1e619654..3c549f798727 100644 --- a/arch/xtensa/include/asm/ptrace.h +++ b/arch/xtensa/include/asm/ptrace.h @@ -113,6 +113,7 @@ struct pt_regs { #include <variant/core.h> +# define arch_has_single_step() (1) # define task_pt_regs(tsk) ((struct pt_regs*) \ (task_stack_page(tsk) + KERNEL_STACK_SIZE - (XCHAL_NUM_AREGS-16)*4) - 1) # define user_mode(regs) (((regs)->ps & 0x00000020)!=0) 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; |