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authorJie Zhang <jie.zhang@analog.com>2008-07-15 04:15:40 -0400
committerBryan Wu <cooloney@kernel.org>2008-07-15 04:15:40 -0400
commit6546eae4fd90ab11ca7ab6d6b9e1b243d1ce5fe6 (patch)
tree7a06b366724ab98f8b2b2ee550e0e1b477e319ae /arch/blackfin/kernel/ptrace.c
parent2cfebf2bceff4645b403246b608b1bb6222e4deb (diff)
Blackfin arch: Allow ptrace to peek and poke application data in L1 data SRAM.
Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/kernel/ptrace.c')
-rw-r--r--arch/blackfin/kernel/ptrace.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index f51ab088098e..bf1a51d8e608 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -220,6 +220,20 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
220 copied = sizeof(tmp); 220 copied = sizeof(tmp);
221 } else 221 } else
222#endif 222#endif
223#if L1_DATA_A_LENGTH != 0
224 if (addr + add >= L1_DATA_A_START
225 && addr + add + sizeof(tmp) <= L1_DATA_A_START + L1_DATA_A_LENGTH) {
226 memcpy(&tmp, (const void *)(addr + add), sizeof(tmp));
227 copied = sizeof(tmp);
228 } else
229#endif
230#if L1_DATA_B_LENGTH != 0
231 if (addr + add >= L1_DATA_B_START
232 && addr + add + sizeof(tmp) <= L1_DATA_B_START + L1_DATA_B_LENGTH) {
233 memcpy(&tmp, (const void *)(addr + add), sizeof(tmp));
234 copied = sizeof(tmp);
235 } else
236#endif
223 if (addr + add >= FIXED_CODE_START 237 if (addr + add >= FIXED_CODE_START
224 && addr + add + sizeof(tmp) <= FIXED_CODE_END) { 238 && addr + add + sizeof(tmp) <= FIXED_CODE_END) {
225 memcpy(&tmp, (const void *)(addr + add), sizeof(tmp)); 239 memcpy(&tmp, (const void *)(addr + add), sizeof(tmp));
@@ -290,6 +304,20 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
290 copied = sizeof(data); 304 copied = sizeof(data);
291 } else 305 } else
292#endif 306#endif
307#if L1_DATA_A_LENGTH != 0
308 if (addr + add >= L1_DATA_A_START
309 && addr + add + sizeof(data) <= L1_DATA_A_START + L1_DATA_A_LENGTH) {
310 memcpy((void *)(addr + add), &data, sizeof(data));
311 copied = sizeof(data);
312 } else
313#endif
314#if L1_DATA_B_LENGTH != 0
315 if (addr + add >= L1_DATA_B_START
316 && addr + add + sizeof(data) <= L1_DATA_B_START + L1_DATA_B_LENGTH) {
317 memcpy((void *)(addr + add), &data, sizeof(data));
318 copied = sizeof(data);
319 } else
320#endif
293 if (addr + add >= FIXED_CODE_START 321 if (addr + add >= FIXED_CODE_START
294 && addr + add + sizeof(data) <= FIXED_CODE_END) { 322 && addr + add + sizeof(data) <= FIXED_CODE_END) {
295 memcpy((void *)(addr + add), &data, sizeof(data)); 323 memcpy((void *)(addr + add), &data, sizeof(data));