diff options
Diffstat (limited to 'arch/hexagon/kernel/ptrace.c')
| -rw-r--r-- | arch/hexagon/kernel/ptrace.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/arch/hexagon/kernel/ptrace.c b/arch/hexagon/kernel/ptrace.c index bea3f08470f..390a9ad14ca 100644 --- a/arch/hexagon/kernel/ptrace.c +++ b/arch/hexagon/kernel/ptrace.c @@ -1,7 +1,7 @@ /* * Ptrace support for Hexagon * - * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -28,10 +28,25 @@ #include <linux/ptrace.h> #include <linux/regset.h> #include <linux/user.h> +#include <linux/elf.h> -#include <asm/system.h> #include <asm/user.h> +#if arch_has_single_step() +/* Both called from ptrace_resume */ +void user_enable_single_step(struct task_struct *child) +{ + pt_set_singlestep(task_pt_regs(child)); + set_tsk_thread_flag(child, TIF_SINGLESTEP); +} + +void user_disable_single_step(struct task_struct *child) +{ + pt_clr_singlestep(task_pt_regs(child)); + clear_tsk_thread_flag(child, TIF_SINGLESTEP); +} +#endif + static int genregs_get(struct task_struct *target, const struct user_regset *regset, unsigned int pos, unsigned int count, @@ -76,6 +91,10 @@ static int genregs_get(struct task_struct *target, dummy = pt_cause(regs); ONEXT(&dummy, cause); ONEXT(&pt_badva(regs), badva); +#if CONFIG_HEXAGON_ARCH_VERSION >=4 + ONEXT(®s->cs0, cs0); + ONEXT(®s->cs1, cs1); +#endif /* Pad the rest with zeros, if needed */ if (!ret) @@ -123,6 +142,11 @@ static int genregs_set(struct task_struct *target, INEXT(&bucket, cause); INEXT(&bucket, badva); +#if CONFIG_HEXAGON_ARCH_VERSION >=4 + INEXT(®s->cs0, cs0); + INEXT(®s->cs1, cs1); +#endif + /* Ignore the rest, if needed */ if (!ret) ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, @@ -159,6 +183,7 @@ static const struct user_regset_view hexagon_user_view = { .e_machine = ELF_ARCH, .ei_osabi = ELF_OSABI, .regsets = hexagon_regsets, + .e_flags = ELF_CORE_EFLAGS, .n = ARRAY_SIZE(hexagon_regsets) }; |