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authorOlof Johansson <olof@lixom.net>2013-07-12 10:59:39 -0700
committerOlof Johansson <olof@lixom.net>2013-07-12 10:59:39 -0700
commitf4b96f5e4ff8d86699c851c10245e102809b0331 (patch)
treef766102263bed71738431cabb4d4f6f086005cd8 /arch/arm64/kernel/ptrace.c
parent9d8812df35be58a5da0c44182c1e4ba2507cc6a7 (diff)
parentc24a6ae18abde53b048372b066b93b71b1b91154 (diff)
downloadlinux-f4b96f5e4ff8d86699c851c10245e102809b0331.tar.gz
Merge tag 'omap-for-v3.11/fixes-for-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Omap fixes and minor defconfig updates that would be good to get in before -rc1. * tag 'omap-for-v3.11/fixes-for-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: omap2plus_defconfig: Enable appended DTB support ARM: OMAP2+: Enable TI_EDMA in omap2plus_defconfig ARM: OMAP2+: omap2plus_defconfig: enable DRA752 thermal support by default ARM: OMAP2+: omap2plus_defconfig: enable TI bandgap driver ARM: OMAP2+: devices: remove duplicated include from devices.c ARM: OMAP3: igep0020: Set DSS pins in correct mux mode. ARM: OMAP2+: N900: enable N900-specific drivers even if device tree is enabled ARM: OMAP2+: Cocci spatch "ptr_ret.spatch" ARM: OMAP2+: Remove obsolete Makefile line ARM: OMAP5: Enable Cortex A15 errata 798181 ARM: scu: provide inline dummy functions when SCU is not present ARM: OMAP4: sleep: build OMAP4 specific functions only for OMAP4 ARM: OMAP2+: timer: initialize before using oh_name Signed-off-by: Olof Johansson <olof@lixom.net> Add/move/change conflicts in arch/arm/mach-omap2/Kconfig resolved.
Diffstat (limited to 'arch/arm64/kernel/ptrace.c')
-rw-r--r--arch/arm64/kernel/ptrace.c59
1 files changed, 0 insertions, 59 deletions
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 6e1e77f1831c..fecdbf7de82e 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -53,28 +53,6 @@ void ptrace_disable(struct task_struct *child)
{
}
-/*
- * Handle hitting a breakpoint.
- */
-static int ptrace_break(struct pt_regs *regs)
-{
- siginfo_t info = {
- .si_signo = SIGTRAP,
- .si_errno = 0,
- .si_code = TRAP_BRKPT,
- .si_addr = (void __user *)instruction_pointer(regs),
- };
-
- force_sig_info(SIGTRAP, &info, current);
- return 0;
-}
-
-static int arm64_break_trap(unsigned long addr, unsigned int esr,
- struct pt_regs *regs)
-{
- return ptrace_break(regs);
-}
-
#ifdef CONFIG_HAVE_HW_BREAKPOINT
/*
* Handle hitting a HW-breakpoint.
@@ -817,33 +795,6 @@ static const struct user_regset_view user_aarch32_view = {
.regsets = aarch32_regsets, .n = ARRAY_SIZE(aarch32_regsets)
};
-int aarch32_break_trap(struct pt_regs *regs)
-{
- unsigned int instr;
- bool bp = false;
- void __user *pc = (void __user *)instruction_pointer(regs);
-
- if (compat_thumb_mode(regs)) {
- /* get 16-bit Thumb instruction */
- get_user(instr, (u16 __user *)pc);
- if (instr == AARCH32_BREAK_THUMB2_LO) {
- /* get second half of 32-bit Thumb-2 instruction */
- get_user(instr, (u16 __user *)(pc + 2));
- bp = instr == AARCH32_BREAK_THUMB2_HI;
- } else {
- bp = instr == AARCH32_BREAK_THUMB;
- }
- } else {
- /* 32-bit ARM instruction */
- get_user(instr, (u32 __user *)pc);
- bp = (instr & ~0xf0000000) == AARCH32_BREAK_ARM;
- }
-
- if (bp)
- return ptrace_break(regs);
- return 1;
-}
-
static int compat_ptrace_read_user(struct task_struct *tsk, compat_ulong_t off,
compat_ulong_t __user *ret)
{
@@ -1111,16 +1062,6 @@ long arch_ptrace(struct task_struct *child, long request,
return ptrace_request(child, request, addr, data);
}
-
-static int __init ptrace_break_init(void)
-{
- hook_debug_fault_code(DBG_ESR_EVT_BRK, arm64_break_trap, SIGTRAP,
- TRAP_BRKPT, "ptrace BRK handler");
- return 0;
-}
-core_initcall(ptrace_break_init);
-
-
asmlinkage int syscall_trace(int dir, struct pt_regs *regs)
{
unsigned long saved_reg;