diff options
Diffstat (limited to 'arch/blackfin/kernel/ptrace.c')
| -rw-r--r-- | arch/blackfin/kernel/ptrace.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c index 6ec77685df52..b35839354130 100644 --- a/arch/blackfin/kernel/ptrace.c +++ b/arch/blackfin/kernel/ptrace.c @@ -27,6 +27,7 @@ #include <asm/fixed_code.h> #include <asm/cacheflush.h> #include <asm/mem_map.h> +#include <asm/mmu_context.h> /* * does not yet catch signals sent when the child dies. @@ -113,8 +114,8 @@ put_reg(struct task_struct *task, long regno, unsigned long data) /* * check that an address falls within the bounds of the target process's memory mappings */ -static inline int is_user_addr_valid(struct task_struct *child, - unsigned long start, unsigned long len) +int +is_user_addr_valid(struct task_struct *child, unsigned long start, unsigned long len) { struct vm_area_struct *vma; struct sram_list_struct *sraml; @@ -135,6 +136,13 @@ static inline int is_user_addr_valid(struct task_struct *child, if (start >= FIXED_CODE_START && start + len < FIXED_CODE_END) return 0; +#ifdef CONFIG_APP_STACK_L1 + if (child->mm->context.l1_stack_save) + if (start >= (unsigned long)l1_stack_base && + start + len < (unsigned long)l1_stack_base + l1_stack_len) + return 0; +#endif + return -EIO; } |