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@@ -19,6 +19,9 @@
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#include <linux/user.h>
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#include <linux/security.h>
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#include <linux/signal.h>
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+#include <linux/regset.h>
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+#include <linux/elf.h>
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+#include <linux/tracehook.h>
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#include <asm/uaccess.h>
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#include <asm/page.h>
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@@ -32,6 +35,169 @@
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* in exit.c or in signal.c.
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*/
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+/*
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+ * retrieve the contents of FRV userspace general registers
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+ */
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+static int genregs_get(struct task_struct *target,
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+ const struct user_regset *regset,
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+ unsigned int pos, unsigned int count,
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+ void *kbuf, void __user *ubuf)
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+{
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+ const struct user_int_regs *iregs = &target->thread.user->i;
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+ int ret;
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+
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+ ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
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+ iregs, 0, sizeof(*iregs));
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+ if (ret < 0)
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+ return ret;
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+
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+ return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
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+ sizeof(*iregs), -1);
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+}
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+
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+/*
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+ * update the contents of the FRV userspace general registers
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+ */
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+static int genregs_set(struct task_struct *target,
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+ const struct user_regset *regset,
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+ unsigned int pos, unsigned int count,
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+ const void *kbuf, const void __user *ubuf)
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+{
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+ struct user_int_regs *iregs = &target->thread.user->i;
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+ unsigned int offs_gr0, offs_gr1;
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+ int ret;
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+
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+ /* not allowed to set PSR or __status */
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+ if (pos < offsetof(struct user_int_regs, psr) + sizeof(long) &&
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+ pos + count > offsetof(struct user_int_regs, psr))
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+ return -EIO;
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+
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+ if (pos < offsetof(struct user_int_regs, __status) + sizeof(long) &&
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+ pos + count > offsetof(struct user_int_regs, __status))
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+ return -EIO;
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+
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+ /* set the control regs */
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+ offs_gr0 = offsetof(struct user_int_regs, gr[0]);
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+ offs_gr1 = offsetof(struct user_int_regs, gr[1]);
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+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
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+ iregs, 0, offs_gr0);
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+ if (ret < 0)
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+ return ret;
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+
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+ /* skip GR0/TBR */
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+ ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
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+ offs_gr0, offs_gr1);
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+ if (ret < 0)
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+ return ret;
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+
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+ /* set the general regs */
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+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
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+ &iregs->gr[1], offs_gr1, sizeof(*iregs));
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+ if (ret < 0)
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+ return ret;
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+
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+ return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
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+ sizeof(*iregs), -1);
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+}
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+
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+/*
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+ * retrieve the contents of FRV userspace FP/Media registers
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+ */
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+static int fpmregs_get(struct task_struct *target,
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+ const struct user_regset *regset,
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+ unsigned int pos, unsigned int count,
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+ void *kbuf, void __user *ubuf)
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+{
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+ const struct user_fpmedia_regs *fpregs = &target->thread.user->f;
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+ int ret;
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+
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+ ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
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+ fpregs, 0, sizeof(*fpregs));
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+ if (ret < 0)
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+ return ret;
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+
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+ return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
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+ sizeof(*fpregs), -1);
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+}
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+
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+/*
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+ * update the contents of the FRV userspace FP/Media registers
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+ */
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+static int fpmregs_set(struct task_struct *target,
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+ const struct user_regset *regset,
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+ unsigned int pos, unsigned int count,
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+ const void *kbuf, const void __user *ubuf)
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+{
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+ struct user_fpmedia_regs *fpregs = &target->thread.user->f;
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+ int ret;
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+
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+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
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+ fpregs, 0, sizeof(*fpregs));
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+ if (ret < 0)
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+ return ret;
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+
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+ return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
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+ sizeof(*fpregs), -1);
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+}
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+
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+/*
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+ * determine if the FP/Media registers have actually been used
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+ */
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+static int fpmregs_active(struct task_struct *target,
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+ const struct user_regset *regset)
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+{
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+ return tsk_used_math(target) ? regset->n : 0;
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+}
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+
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+/*
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+ * Define the register sets available on the FRV under Linux
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+ */
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+enum frv_regset {
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+ REGSET_GENERAL,
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+ REGSET_FPMEDIA,
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+};
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+
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+static const struct user_regset frv_regsets[] = {
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+ /*
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+ * General register format is:
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+ * PSR, ISR, CCR, CCCR, LR, LCR, PC, (STATUS), SYSCALLNO, ORIG_G8
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+ * GNER0-1, IACC0, TBR, GR1-63
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+ */
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+ [REGSET_GENERAL] = {
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+ .core_note_type = NT_PRSTATUS,
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+ .n = ELF_NGREG,
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+ .size = sizeof(long),
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+ .align = sizeof(long),
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+ .get = genregs_get,
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+ .set = genregs_set,
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+ },
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+ /*
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+ * FPU/Media register format is:
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+ * FR0-63, FNER0-1, MSR0-1, ACC0-7, ACCG0-8, FSR
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+ */
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+ [REGSET_FPMEDIA] = {
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+ .core_note_type = NT_PRFPREG,
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+ .n = sizeof(struct user_fpmedia_regs) / sizeof(long),
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+ .size = sizeof(long),
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+ .align = sizeof(long),
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+ .get = fpmregs_get,
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+ .set = fpmregs_set,
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+ .active = fpmregs_active,
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+ },
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+};
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+
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+static const struct user_regset_view user_frv_native_view = {
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+ .name = "frv",
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+ .e_machine = EM_FRV,
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+ .regsets = frv_regsets,
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+ .n = ARRAY_SIZE(frv_regsets),
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+};
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+
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+const struct user_regset_view *task_user_regset_view(struct task_struct *task)
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+{
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+ return &user_frv_native_view;
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+}
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+
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/*
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* Get contents of register REGNO in task TASK.
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*/
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@@ -68,41 +234,24 @@ static inline int put_reg(struct task_struct *task, int regno,
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}
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}
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-/*
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- * check that an address falls within the bounds of the target process's memory
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- * mappings
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- */
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-static inline int is_user_addr_valid(struct task_struct *child,
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- unsigned long start, unsigned long len)
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-{
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-#ifdef CONFIG_MMU
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- if (start >= PAGE_OFFSET || len > PAGE_OFFSET - start)
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- return -EIO;
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- return 0;
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-#else
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- struct vm_area_struct *vma;
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-
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- vma = find_vma(child->mm, start);
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- if (vma && start >= vma->vm_start && start + len <= vma->vm_end)
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- return 0;
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-
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- return -EIO;
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-#endif
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-}
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-
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/*
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* Called by kernel/ptrace.c when detaching..
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*
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* Control h/w single stepping
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*/
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-void ptrace_disable(struct task_struct *child)
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+void user_enable_single_step(struct task_struct *child)
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+{
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+ child->thread.frame0->__status |= REG__STATUS_STEP;
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+}
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+
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+void user_disable_single_step(struct task_struct *child)
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{
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child->thread.frame0->__status &= ~REG__STATUS_STEP;
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}
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-void ptrace_enable(struct task_struct *child)
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+void ptrace_disable(struct task_struct *child)
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{
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- child->thread.frame0->__status |= REG__STATUS_STEP;
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+ user_disable_single_step(child);
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}
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long arch_ptrace(struct task_struct *child, long request, long addr, long data)
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@@ -111,15 +260,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
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int ret;
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switch (request) {
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- /* when I and D space are separate, these will need to be fixed. */
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- case PTRACE_PEEKTEXT: /* read word at location addr. */
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- case PTRACE_PEEKDATA:
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- ret = -EIO;
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- if (is_user_addr_valid(child, addr, sizeof(tmp)) < 0)
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- break;
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- ret = generic_ptrace_peekdata(child, addr, data);
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- break;
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-
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/* read the word at location addr in the USER area. */
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case PTRACE_PEEKUSR: {
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tmp = 0;
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@@ -163,15 +303,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
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break;
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}
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- /* when I and D space are separate, this will have to be fixed. */
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- case PTRACE_POKETEXT: /* write the word at location addr. */
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- case PTRACE_POKEDATA:
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- ret = -EIO;
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- if (is_user_addr_valid(child, addr, sizeof(tmp)) < 0)
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- break;
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- ret = generic_ptrace_pokedata(child, addr, data);
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- break;
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-
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case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
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ret = -EIO;
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if ((addr & 3) || addr < 0)
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@@ -179,7 +310,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
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ret = 0;
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switch (addr >> 2) {
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- case 0 ... PT__END-1:
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+ case 0 ... PT__END - 1:
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ret = put_reg(child, addr >> 2, data);
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break;
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@@ -189,95 +320,29 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
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}
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break;
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- case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
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- case PTRACE_CONT: /* restart after signal. */
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- ret = -EIO;
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- if (!valid_signal(data))
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- break;
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- if (request == PTRACE_SYSCALL)
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- set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
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- else
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- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
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- child->exit_code = data;
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- ptrace_disable(child);
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- wake_up_process(child);
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- ret = 0;
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- break;
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-
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- /* make the child exit. Best I can do is send it a sigkill.
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- * perhaps it should be put in the status that it wants to
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- * exit.
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- */
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- case PTRACE_KILL:
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- ret = 0;
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- if (child->exit_state == EXIT_ZOMBIE) /* already dead */
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- break;
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- child->exit_code = SIGKILL;
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- clear_tsk_thread_flag(child, TIF_SINGLESTEP);
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- ptrace_disable(child);
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- wake_up_process(child);
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- break;
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-
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- case PTRACE_SINGLESTEP: /* set the trap flag. */
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- ret = -EIO;
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- if (!valid_signal(data))
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- break;
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- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
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- ptrace_enable(child);
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- child->exit_code = data;
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- wake_up_process(child);
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- ret = 0;
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- break;
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-
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- case PTRACE_DETACH: /* detach a process that was attached. */
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- ret = ptrace_detach(child, data);
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- break;
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-
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- case PTRACE_GETREGS: { /* Get all integer regs from the child. */
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- int i;
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- for (i = 0; i < PT__GPEND; i++) {
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- tmp = get_reg(child, i);
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- if (put_user(tmp, (unsigned long *) data)) {
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- ret = -EFAULT;
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- break;
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- }
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- data += sizeof(long);
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- }
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- ret = 0;
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- break;
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- }
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-
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- case PTRACE_SETREGS: { /* Set all integer regs in the child. */
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- int i;
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- for (i = 0; i < PT__GPEND; i++) {
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- if (get_user(tmp, (unsigned long *) data)) {
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- ret = -EFAULT;
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- break;
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- }
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- put_reg(child, i, tmp);
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- data += sizeof(long);
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- }
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- ret = 0;
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- break;
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- }
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-
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- case PTRACE_GETFPREGS: { /* Get the child FP/Media state. */
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- ret = 0;
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- if (copy_to_user((void *) data,
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- &child->thread.user->f,
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- sizeof(child->thread.user->f)))
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- ret = -EFAULT;
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- break;
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- }
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-
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- case PTRACE_SETFPREGS: { /* Set the child FP/Media state. */
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- ret = 0;
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- if (copy_from_user(&child->thread.user->f,
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- (void *) data,
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- sizeof(child->thread.user->f)))
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- ret = -EFAULT;
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- break;
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- }
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+ case PTRACE_GETREGS: /* Get all integer regs from the child. */
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+ return copy_regset_to_user(child, &user_frv_native_view,
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+ REGSET_GENERAL,
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+ 0, sizeof(child->thread.user->i),
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+ (void __user *)data);
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+
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+ case PTRACE_SETREGS: /* Set all integer regs in the child. */
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+ return copy_regset_from_user(child, &user_frv_native_view,
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+ REGSET_GENERAL,
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+ 0, sizeof(child->thread.user->i),
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+ (const void __user *)data);
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+
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+ case PTRACE_GETFPREGS: /* Get the child FP/Media state. */
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+ return copy_regset_to_user(child, &user_frv_native_view,
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+ REGSET_FPMEDIA,
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+ 0, sizeof(child->thread.user->f),
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+ (void __user *)data);
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+
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+ case PTRACE_SETFPREGS: /* Set the child FP/Media state. */
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+ return copy_regset_from_user(child, &user_frv_native_view,
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+ REGSET_FPMEDIA,
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+ 0, sizeof(child->thread.user->f),
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+ (const void __user *)data);
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case PTRACE_GETFDPIC:
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tmp = 0;
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@@ -300,414 +365,36 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
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break;
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default:
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- ret = -EIO;
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+ ret = ptrace_request(child, request, addr, data);
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break;
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}
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return ret;
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}
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-int __nongprelbss kstrace;
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-
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-static const struct {
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- const char *name;
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- unsigned argmask;
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-} __syscall_name_table[NR_syscalls] = {
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- [0] = { "restart_syscall" },
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- [1] = { "exit", 0x000001 },
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- [2] = { "fork", 0xffffff },
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- [3] = { "read", 0x000141 },
|
|
|
- [4] = { "write", 0x000141 },
|
|
|
- [5] = { "open", 0x000235 },
|
|
|
- [6] = { "close", 0x000001 },
|
|
|
- [7] = { "waitpid", 0x000141 },
|
|
|
- [8] = { "creat", 0x000025 },
|
|
|
- [9] = { "link", 0x000055 },
|
|
|
- [10] = { "unlink", 0x000005 },
|
|
|
- [11] = { "execve", 0x000445 },
|
|
|
- [12] = { "chdir", 0x000005 },
|
|
|
- [13] = { "time", 0x000004 },
|
|
|
- [14] = { "mknod", 0x000325 },
|
|
|
- [15] = { "chmod", 0x000025 },
|
|
|
- [16] = { "lchown", 0x000025 },
|
|
|
- [17] = { "break" },
|
|
|
- [18] = { "oldstat", 0x000045 },
|
|
|
- [19] = { "lseek", 0x000131 },
|
|
|
- [20] = { "getpid", 0xffffff },
|
|
|
- [21] = { "mount", 0x043555 },
|
|
|
- [22] = { "umount", 0x000005 },
|
|
|
- [23] = { "setuid", 0x000001 },
|
|
|
- [24] = { "getuid", 0xffffff },
|
|
|
- [25] = { "stime", 0x000004 },
|
|
|
- [26] = { "ptrace", 0x004413 },
|
|
|
- [27] = { "alarm", 0x000001 },
|
|
|
- [28] = { "oldfstat", 0x000041 },
|
|
|
- [29] = { "pause", 0xffffff },
|
|
|
- [30] = { "utime", 0x000045 },
|
|
|
- [31] = { "stty" },
|
|
|
- [32] = { "gtty" },
|
|
|
- [33] = { "access", 0x000025 },
|
|
|
- [34] = { "nice", 0x000001 },
|
|
|
- [35] = { "ftime" },
|
|
|
- [36] = { "sync", 0xffffff },
|
|
|
- [37] = { "kill", 0x000011 },
|
|
|
- [38] = { "rename", 0x000055 },
|
|
|
- [39] = { "mkdir", 0x000025 },
|
|
|
- [40] = { "rmdir", 0x000005 },
|
|
|
- [41] = { "dup", 0x000001 },
|
|
|
- [42] = { "pipe", 0x000004 },
|
|
|
- [43] = { "times", 0x000004 },
|
|
|
- [44] = { "prof" },
|
|
|
- [45] = { "brk", 0x000004 },
|
|
|
- [46] = { "setgid", 0x000001 },
|
|
|
- [47] = { "getgid", 0xffffff },
|
|
|
- [48] = { "signal", 0x000041 },
|
|
|
- [49] = { "geteuid", 0xffffff },
|
|
|
- [50] = { "getegid", 0xffffff },
|
|
|
- [51] = { "acct", 0x000005 },
|
|
|
- [52] = { "umount2", 0x000035 },
|
|
|
- [53] = { "lock" },
|
|
|
- [54] = { "ioctl", 0x000331 },
|
|
|
- [55] = { "fcntl", 0x000331 },
|
|
|
- [56] = { "mpx" },
|
|
|
- [57] = { "setpgid", 0x000011 },
|
|
|
- [58] = { "ulimit" },
|
|
|
- [60] = { "umask", 0x000002 },
|
|
|
- [61] = { "chroot", 0x000005 },
|
|
|
- [62] = { "ustat", 0x000043 },
|
|
|
- [63] = { "dup2", 0x000011 },
|
|
|
- [64] = { "getppid", 0xffffff },
|
|
|
- [65] = { "getpgrp", 0xffffff },
|
|
|
- [66] = { "setsid", 0xffffff },
|
|
|
- [67] = { "sigaction" },
|
|
|
- [68] = { "sgetmask" },
|
|
|
- [69] = { "ssetmask" },
|
|
|
- [70] = { "setreuid" },
|
|
|
- [71] = { "setregid" },
|
|
|
- [72] = { "sigsuspend" },
|
|
|
- [73] = { "sigpending" },
|
|
|
- [74] = { "sethostname" },
|
|
|
- [75] = { "setrlimit" },
|
|
|
- [76] = { "getrlimit" },
|
|
|
- [77] = { "getrusage" },
|
|
|
- [78] = { "gettimeofday" },
|
|
|
- [79] = { "settimeofday" },
|
|
|
- [80] = { "getgroups" },
|
|
|
- [81] = { "setgroups" },
|
|
|
- [82] = { "select" },
|
|
|
- [83] = { "symlink" },
|
|
|
- [84] = { "oldlstat" },
|
|
|
- [85] = { "readlink" },
|
|
|
- [86] = { "uselib" },
|
|
|
- [87] = { "swapon" },
|
|
|
- [88] = { "reboot" },
|
|
|
- [89] = { "readdir" },
|
|
|
- [91] = { "munmap", 0x000034 },
|
|
|
- [92] = { "truncate" },
|
|
|
- [93] = { "ftruncate" },
|
|
|
- [94] = { "fchmod" },
|
|
|
- [95] = { "fchown" },
|
|
|
- [96] = { "getpriority" },
|
|
|
- [97] = { "setpriority" },
|
|
|
- [99] = { "statfs" },
|
|
|
- [100] = { "fstatfs" },
|
|
|
- [102] = { "socketcall" },
|
|
|
- [103] = { "syslog" },
|
|
|
- [104] = { "setitimer" },
|
|
|
- [105] = { "getitimer" },
|
|
|
- [106] = { "stat" },
|
|
|
- [107] = { "lstat" },
|
|
|
- [108] = { "fstat" },
|
|
|
- [111] = { "vhangup" },
|
|
|
- [114] = { "wait4" },
|
|
|
- [115] = { "swapoff" },
|
|
|
- [116] = { "sysinfo" },
|
|
|
- [117] = { "ipc" },
|
|
|
- [118] = { "fsync" },
|
|
|
- [119] = { "sigreturn" },
|
|
|
- [120] = { "clone" },
|
|
|
- [121] = { "setdomainname" },
|
|
|
- [122] = { "uname" },
|
|
|
- [123] = { "modify_ldt" },
|
|
|
- [123] = { "cacheflush" },
|
|
|
- [124] = { "adjtimex" },
|
|
|
- [125] = { "mprotect" },
|
|
|
- [126] = { "sigprocmask" },
|
|
|
- [127] = { "create_module" },
|
|
|
- [128] = { "init_module" },
|
|
|
- [129] = { "delete_module" },
|
|
|
- [130] = { "get_kernel_syms" },
|
|
|
- [131] = { "quotactl" },
|
|
|
- [132] = { "getpgid" },
|
|
|
- [133] = { "fchdir" },
|
|
|
- [134] = { "bdflush" },
|
|
|
- [135] = { "sysfs" },
|
|
|
- [136] = { "personality" },
|
|
|
- [137] = { "afs_syscall" },
|
|
|
- [138] = { "setfsuid" },
|
|
|
- [139] = { "setfsgid" },
|
|
|
- [140] = { "_llseek", 0x014331 },
|
|
|
- [141] = { "getdents" },
|
|
|
- [142] = { "_newselect", 0x000141 },
|
|
|
- [143] = { "flock" },
|
|
|
- [144] = { "msync" },
|
|
|
- [145] = { "readv" },
|
|
|
- [146] = { "writev" },
|
|
|
- [147] = { "getsid", 0x000001 },
|
|
|
- [148] = { "fdatasync", 0x000001 },
|
|
|
- [149] = { "_sysctl", 0x000004 },
|
|
|
- [150] = { "mlock" },
|
|
|
- [151] = { "munlock" },
|
|
|
- [152] = { "mlockall" },
|
|
|
- [153] = { "munlockall" },
|
|
|
- [154] = { "sched_setparam" },
|
|
|
- [155] = { "sched_getparam" },
|
|
|
- [156] = { "sched_setscheduler" },
|
|
|
- [157] = { "sched_getscheduler" },
|
|
|
- [158] = { "sched_yield" },
|
|
|
- [159] = { "sched_get_priority_max" },
|
|
|
- [160] = { "sched_get_priority_min" },
|
|
|
- [161] = { "sched_rr_get_interval" },
|
|
|
- [162] = { "nanosleep", 0x000044 },
|
|
|
- [163] = { "mremap" },
|
|
|
- [164] = { "setresuid" },
|
|
|
- [165] = { "getresuid" },
|
|
|
- [166] = { "vm86" },
|
|
|
- [167] = { "query_module" },
|
|
|
- [168] = { "poll" },
|
|
|
- [169] = { "nfsservctl" },
|
|
|
- [170] = { "setresgid" },
|
|
|
- [171] = { "getresgid" },
|
|
|
- [172] = { "prctl", 0x333331 },
|
|
|
- [173] = { "rt_sigreturn", 0xffffff },
|
|
|
- [174] = { "rt_sigaction", 0x001441 },
|
|
|
- [175] = { "rt_sigprocmask", 0x001441 },
|
|
|
- [176] = { "rt_sigpending", 0x000014 },
|
|
|
- [177] = { "rt_sigtimedwait", 0x001444 },
|
|
|
- [178] = { "rt_sigqueueinfo", 0x000411 },
|
|
|
- [179] = { "rt_sigsuspend", 0x000014 },
|
|
|
- [180] = { "pread", 0x003341 },
|
|
|
- [181] = { "pwrite", 0x003341 },
|
|
|
- [182] = { "chown", 0x000115 },
|
|
|
- [183] = { "getcwd" },
|
|
|
- [184] = { "capget" },
|
|
|
- [185] = { "capset" },
|
|
|
- [186] = { "sigaltstack" },
|
|
|
- [187] = { "sendfile" },
|
|
|
- [188] = { "getpmsg" },
|
|
|
- [189] = { "putpmsg" },
|
|
|
- [190] = { "vfork", 0xffffff },
|
|
|
- [191] = { "ugetrlimit" },
|
|
|
- [192] = { "mmap2", 0x313314 },
|
|
|
- [193] = { "truncate64" },
|
|
|
- [194] = { "ftruncate64" },
|
|
|
- [195] = { "stat64", 0x000045 },
|
|
|
- [196] = { "lstat64", 0x000045 },
|
|
|
- [197] = { "fstat64", 0x000041 },
|
|
|
- [198] = { "lchown32" },
|
|
|
- [199] = { "getuid32", 0xffffff },
|
|
|
- [200] = { "getgid32", 0xffffff },
|
|
|
- [201] = { "geteuid32", 0xffffff },
|
|
|
- [202] = { "getegid32", 0xffffff },
|
|
|
- [203] = { "setreuid32" },
|
|
|
- [204] = { "setregid32" },
|
|
|
- [205] = { "getgroups32" },
|
|
|
- [206] = { "setgroups32" },
|
|
|
- [207] = { "fchown32" },
|
|
|
- [208] = { "setresuid32" },
|
|
|
- [209] = { "getresuid32" },
|
|
|
- [210] = { "setresgid32" },
|
|
|
- [211] = { "getresgid32" },
|
|
|
- [212] = { "chown32" },
|
|
|
- [213] = { "setuid32" },
|
|
|
- [214] = { "setgid32" },
|
|
|
- [215] = { "setfsuid32" },
|
|
|
- [216] = { "setfsgid32" },
|
|
|
- [217] = { "pivot_root" },
|
|
|
- [218] = { "mincore" },
|
|
|
- [219] = { "madvise" },
|
|
|
- [220] = { "getdents64" },
|
|
|
- [221] = { "fcntl64" },
|
|
|
- [223] = { "security" },
|
|
|
- [224] = { "gettid" },
|
|
|
- [225] = { "readahead" },
|
|
|
- [226] = { "setxattr" },
|
|
|
- [227] = { "lsetxattr" },
|
|
|
- [228] = { "fsetxattr" },
|
|
|
- [229] = { "getxattr" },
|
|
|
- [230] = { "lgetxattr" },
|
|
|
- [231] = { "fgetxattr" },
|
|
|
- [232] = { "listxattr" },
|
|
|
- [233] = { "llistxattr" },
|
|
|
- [234] = { "flistxattr" },
|
|
|
- [235] = { "removexattr" },
|
|
|
- [236] = { "lremovexattr" },
|
|
|
- [237] = { "fremovexattr" },
|
|
|
- [238] = { "tkill" },
|
|
|
- [239] = { "sendfile64" },
|
|
|
- [240] = { "futex" },
|
|
|
- [241] = { "sched_setaffinity" },
|
|
|
- [242] = { "sched_getaffinity" },
|
|
|
- [243] = { "set_thread_area" },
|
|
|
- [244] = { "get_thread_area" },
|
|
|
- [245] = { "io_setup" },
|
|
|
- [246] = { "io_destroy" },
|
|
|
- [247] = { "io_getevents" },
|
|
|
- [248] = { "io_submit" },
|
|
|
- [249] = { "io_cancel" },
|
|
|
- [250] = { "fadvise64" },
|
|
|
- [252] = { "exit_group", 0x000001 },
|
|
|
- [253] = { "lookup_dcookie" },
|
|
|
- [254] = { "epoll_create" },
|
|
|
- [255] = { "epoll_ctl" },
|
|
|
- [256] = { "epoll_wait" },
|
|
|
- [257] = { "remap_file_pages" },
|
|
|
- [258] = { "set_tid_address" },
|
|
|
- [259] = { "timer_create" },
|
|
|
- [260] = { "timer_settime" },
|
|
|
- [261] = { "timer_gettime" },
|
|
|
- [262] = { "timer_getoverrun" },
|
|
|
- [263] = { "timer_delete" },
|
|
|
- [264] = { "clock_settime" },
|
|
|
- [265] = { "clock_gettime" },
|
|
|
- [266] = { "clock_getres" },
|
|
|
- [267] = { "clock_nanosleep" },
|
|
|
- [268] = { "statfs64" },
|
|
|
- [269] = { "fstatfs64" },
|
|
|
- [270] = { "tgkill" },
|
|
|
- [271] = { "utimes" },
|
|
|
- [272] = { "fadvise64_64" },
|
|
|
- [273] = { "vserver" },
|
|
|
- [274] = { "mbind" },
|
|
|
- [275] = { "get_mempolicy" },
|
|
|
- [276] = { "set_mempolicy" },
|
|
|
- [277] = { "mq_open" },
|
|
|
- [278] = { "mq_unlink" },
|
|
|
- [279] = { "mq_timedsend" },
|
|
|
- [280] = { "mq_timedreceive" },
|
|
|
- [281] = { "mq_notify" },
|
|
|
- [282] = { "mq_getsetattr" },
|
|
|
- [283] = { "sys_kexec_load" },
|
|
|
-};
|
|
|
-
|
|
|
-asmlinkage void do_syscall_trace(int leaving)
|
|
|
+/*
|
|
|
+ * handle tracing of system call entry
|
|
|
+ * - return the revised system call number or ULONG_MAX to cause ENOSYS
|
|
|
+ */
|
|
|
+asmlinkage unsigned long syscall_trace_entry(void)
|
|
|
{
|
|
|
-#if 0
|
|
|
- unsigned long *argp;
|
|
|
- const char *name;
|
|
|
- unsigned argmask;
|
|
|
- char buffer[16];
|
|
|
-
|
|
|
- if (!kstrace)
|
|
|
- return;
|
|
|
-
|
|
|
- if (!current->mm)
|
|
|
- return;
|
|
|
-
|
|
|
- if (__frame->gr7 == __NR_close)
|
|
|
- return;
|
|
|
-
|
|
|
-#if 0
|
|
|
- if (__frame->gr7 != __NR_mmap2 &&
|
|
|
- __frame->gr7 != __NR_vfork &&
|
|
|
- __frame->gr7 != __NR_execve &&
|
|
|
- __frame->gr7 != __NR_exit)
|
|
|
- return;
|
|
|
-#endif
|
|
|
-
|
|
|
- argmask = 0;
|
|
|
- name = NULL;
|
|
|
- if (__frame->gr7 < NR_syscalls) {
|
|
|
- name = __syscall_name_table[__frame->gr7].name;
|
|
|
- argmask = __syscall_name_table[__frame->gr7].argmask;
|
|
|
- }
|
|
|
- if (!name) {
|
|
|
- sprintf(buffer, "sys_%lx", __frame->gr7);
|
|
|
- name = buffer;
|
|
|
- }
|
|
|
-
|
|
|
- if (!leaving) {
|
|
|
- if (!argmask) {
|
|
|
- printk(KERN_CRIT "[%d] %s(%lx,%lx,%lx,%lx,%lx,%lx)\n",
|
|
|
- current->pid,
|
|
|
- name,
|
|
|
- __frame->gr8,
|
|
|
- __frame->gr9,
|
|
|
- __frame->gr10,
|
|
|
- __frame->gr11,
|
|
|
- __frame->gr12,
|
|
|
- __frame->gr13);
|
|
|
- }
|
|
|
- else if (argmask == 0xffffff) {
|
|
|
- printk(KERN_CRIT "[%d] %s()\n",
|
|
|
- current->pid,
|
|
|
- name);
|
|
|
- }
|
|
|
- else {
|
|
|
- printk(KERN_CRIT "[%d] %s(",
|
|
|
- current->pid,
|
|
|
- name);
|
|
|
-
|
|
|
- argp = &__frame->gr8;
|
|
|
-
|
|
|
- do {
|
|
|
- switch (argmask & 0xf) {
|
|
|
- case 1:
|
|
|
- printk("%ld", (long) *argp);
|
|
|
- break;
|
|
|
- case 2:
|
|
|
- printk("%lo", *argp);
|
|
|
- break;
|
|
|
- case 3:
|
|
|
- printk("%lx", *argp);
|
|
|
- break;
|
|
|
- case 4:
|
|
|
- printk("%p", (void *) *argp);
|
|
|
- break;
|
|
|
- case 5:
|
|
|
- printk("\"%s\"", (char *) *argp);
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- argp++;
|
|
|
- argmask >>= 4;
|
|
|
- if (argmask)
|
|
|
- printk(",");
|
|
|
-
|
|
|
- } while (argmask);
|
|
|
-
|
|
|
- printk(")\n");
|
|
|
- }
|
|
|
- }
|
|
|
- else {
|
|
|
- if ((int)__frame->gr8 > -4096 && (int)__frame->gr8 < 4096)
|
|
|
- printk(KERN_CRIT "[%d] %s() = %ld\n", current->pid, name, __frame->gr8);
|
|
|
- else
|
|
|
- printk(KERN_CRIT "[%d] %s() = %lx\n", current->pid, name, __frame->gr8);
|
|
|
+ __frame->__status |= REG__STATUS_SYSC_ENTRY;
|
|
|
+ if (tracehook_report_syscall_entry(__frame)) {
|
|
|
+ /* tracing decided this syscall should not happen, so
|
|
|
+ * We'll return a bogus call number to get an ENOSYS
|
|
|
+ * error, but leave the original number in
|
|
|
+ * __frame->syscallno
|
|
|
+ */
|
|
|
+ return ULONG_MAX;
|
|
|
}
|
|
|
- return;
|
|
|
-#endif
|
|
|
-
|
|
|
- if (!test_thread_flag(TIF_SYSCALL_TRACE))
|
|
|
- return;
|
|
|
-
|
|
|
- if (!(current->ptrace & PT_PTRACED))
|
|
|
- return;
|
|
|
|
|
|
- /* we need to indicate entry or exit to strace */
|
|
|
- if (leaving)
|
|
|
- __frame->__status |= REG__STATUS_SYSC_EXIT;
|
|
|
- else
|
|
|
- __frame->__status |= REG__STATUS_SYSC_ENTRY;
|
|
|
-
|
|
|
- ptrace_notify(SIGTRAP);
|
|
|
+ return __frame->syscallno;
|
|
|
+}
|
|
|
|
|
|
- /*
|
|
|
- * this isn't the same as continuing with a signal, but it will do
|
|
|
- * for normal use. strace only continues with a signal if the
|
|
|
- * stopping signal is not SIGTRAP. -brl
|
|
|
- */
|
|
|
- if (current->exit_code) {
|
|
|
- send_sig(current->exit_code, current, 1);
|
|
|
- current->exit_code = 0;
|
|
|
- }
|
|
|
+/*
|
|
|
+ * handle tracing of system call exit
|
|
|
+ */
|
|
|
+asmlinkage void syscall_trace_exit(void)
|
|
|
+{
|
|
|
+ __frame->__status |= REG__STATUS_SYSC_EXIT;
|
|
|
+ tracehook_report_syscall_exit(__frame, 0);
|
|
|
}
|
Linus Torvalds