Revision 97374d38
| b/linux-user/elfload.c | ||
|---|---|---|
| 1018 | 1018 |
/* we reserve one extra page at the top of the stack as guard */ |
| 1019 | 1019 |
target_mprotect(error + size, qemu_host_page_size, PROT_NONE); |
| 1020 | 1020 |
|
| 1021 |
info->stack_limit = error; |
|
| 1021 | 1022 |
stack_base = error + size - MAX_ARG_PAGES*TARGET_PAGE_SIZE; |
| 1022 | 1023 |
p += stack_base; |
| 1023 | 1024 |
|
| b/linux-user/flatload.c | ||
|---|---|---|
| 802 | 802 |
info->end_data = libinfo[0].end_data; |
| 803 | 803 |
info->start_brk = libinfo[0].start_brk; |
| 804 | 804 |
info->start_stack = sp; |
| 805 |
info->stack_limit = libinfo[0].start_brk; |
|
| 805 | 806 |
info->entry = start_addr; |
| 806 | 807 |
info->code_offset = info->start_code; |
| 807 | 808 |
info->data_offset = info->start_data - libinfo[0].text_len; |
| b/linux-user/qemu.h | ||
|---|---|---|
| 42 | 42 |
abi_ulong mmap; |
| 43 | 43 |
abi_ulong rss; |
| 44 | 44 |
abi_ulong start_stack; |
| 45 |
abi_ulong stack_limit; |
|
| 45 | 46 |
abi_ulong entry; |
| 46 | 47 |
abi_ulong code_offset; |
| 47 | 48 |
abi_ulong data_offset; |
| b/linux-user/syscall.c | ||
|---|---|---|
| 5400 | 5400 |
ret = get_errno(target_munmap(arg1, arg2)); |
| 5401 | 5401 |
break; |
| 5402 | 5402 |
case TARGET_NR_mprotect: |
| 5403 |
{
|
|
| 5404 |
TaskState *ts = ((CPUState *)cpu_env)->opaque; |
|
| 5405 |
/* Special hack to detect libc making the stack executable. */ |
|
| 5406 |
if ((arg3 & PROT_GROWSDOWN) |
|
| 5407 |
&& arg1 >= ts->info->stack_limit |
|
| 5408 |
&& arg1 <= ts->info->start_stack) {
|
|
| 5409 |
arg3 &= ~PROT_GROWSDOWN; |
|
| 5410 |
arg2 = arg2 + arg1 - ts->info->stack_limit; |
|
| 5411 |
arg1 = ts->info->stack_limit; |
|
| 5412 |
} |
|
| 5413 |
} |
|
| 5403 | 5414 |
ret = get_errno(target_mprotect(arg1, arg2, arg3)); |
| 5404 | 5415 |
break; |
| 5405 | 5416 |
#ifdef TARGET_NR_mremap |
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