From 6546eae4fd90ab11ca7ab6d6b9e1b243d1ce5fe6 Mon Sep 17 00:00:00 2001 From: Jie Zhang Date: Tue, 15 Jul 2008 16:15:40 +0800 Subject: Blackfin arch: Allow ptrace to peek and poke application data in L1 data SRAM. Signed-off-by: Jie Zhang Signed-off-by: Bryan Wu --- arch/blackfin/kernel/ptrace.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c index f51ab088098..bf1a51d8e60 100644 --- a/arch/blackfin/kernel/ptrace.c +++ b/arch/blackfin/kernel/ptrace.c @@ -219,6 +219,20 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) safe_dma_memcpy (&tmp, (const void *)(addr + add), sizeof(tmp)); copied = sizeof(tmp); } else +#endif +#if L1_DATA_A_LENGTH != 0 + if (addr + add >= L1_DATA_A_START + && addr + add + sizeof(tmp) <= L1_DATA_A_START + L1_DATA_A_LENGTH) { + memcpy(&tmp, (const void *)(addr + add), sizeof(tmp)); + copied = sizeof(tmp); + } else +#endif +#if L1_DATA_B_LENGTH != 0 + if (addr + add >= L1_DATA_B_START + && addr + add + sizeof(tmp) <= L1_DATA_B_START + L1_DATA_B_LENGTH) { + memcpy(&tmp, (const void *)(addr + add), sizeof(tmp)); + copied = sizeof(tmp); + } else #endif if (addr + add >= FIXED_CODE_START && addr + add + sizeof(tmp) <= FIXED_CODE_END) { @@ -289,6 +303,20 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) safe_dma_memcpy ((void *)(addr + add), &data, sizeof(data)); copied = sizeof(data); } else +#endif +#if L1_DATA_A_LENGTH != 0 + if (addr + add >= L1_DATA_A_START + && addr + add + sizeof(data) <= L1_DATA_A_START + L1_DATA_A_LENGTH) { + memcpy((void *)(addr + add), &data, sizeof(data)); + copied = sizeof(data); + } else +#endif +#if L1_DATA_B_LENGTH != 0 + if (addr + add >= L1_DATA_B_START + && addr + add + sizeof(data) <= L1_DATA_B_START + L1_DATA_B_LENGTH) { + memcpy((void *)(addr + add), &data, sizeof(data)); + copied = sizeof(data); + } else #endif if (addr + add >= FIXED_CODE_START && addr + add + sizeof(data) <= FIXED_CODE_END) { -- cgit v1.2.3