diff options
| author | Mikhail Ilyin <m.ilin@samsung.com> | 2014-08-05 17:33:51 +0400 |
|---|---|---|
| committer | Riku Voipio <riku.voipio@linaro.org> | 2014-08-22 15:06:33 +0300 |
| commit | d67f4aaae8379b44b3b51ff07df75f693012983c (patch) | |
| tree | d7262f26a0f22c0f7047d401c18620c5177f6518 | |
| parent | fd3cced366958cc90f0a8caa8213471afde9bf3c (diff) | |
| download | qemu-d67f4aaae8379b44b3b51ff07df75f693012983c.tar.gz qemu-d67f4aaae8379b44b3b51ff07df75f693012983c.tar.bz2 qemu-d67f4aaae8379b44b3b51ff07df75f693012983c.zip | |
linux-user: /proc/self/maps content
Build /proc/self/maps doing a match against guest memory translation table.
Output only that map records which are valid for guest memory layout.
Signed-off-by: Mikhail Ilyin <m.ilin@samsung.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
| -rw-r--r-- | include/exec/cpu-all.h | 2 | ||||
| -rw-r--r-- | linux-user/syscall.c | 25 |
2 files changed, 12 insertions, 15 deletions
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h index f91581fc65..f9d132fc0b 100644 --- a/include/exec/cpu-all.h +++ b/include/exec/cpu-all.h @@ -198,6 +198,8 @@ extern unsigned long reserved_va; #define RESERVED_VA 0ul #endif +#define GUEST_ADDR_MAX (RESERVED_VA ? RESERVED_VA : \ + (1ul << TARGET_VIRT_ADDR_SPACE_BITS) - 1) #endif /* page related stuff */ diff --git a/linux-user/syscall.c b/linux-user/syscall.c index a50229d0d7..c8c2b4c15b 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -5092,10 +5092,8 @@ static int open_self_cmdline(void *cpu_env, int fd) static int open_self_maps(void *cpu_env, int fd) { -#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32) CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env); TaskState *ts = cpu->opaque; -#endif FILE *fp; char *line = NULL; size_t len = 0; @@ -5118,13 +5116,18 @@ static int open_self_maps(void *cpu_env, int fd) if ((fields < 10) || (fields > 11)) { continue; } - if (!strncmp(path, "[stack]", 7)) { - continue; - } - if (h2g_valid(min) && h2g_valid(max)) { + if (h2g_valid(min)) { + int flags = page_get_flags(h2g(min)); + max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX); + if (page_check_range(h2g(min), max - min, flags) == -1) { + continue; + } + if (h2g(min) == ts->info->stack_limit) { + pstrcpy(path, sizeof(path), " [stack]"); + } dprintf(fd, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n", - h2g(min), h2g(max), flag_r, flag_w, + h2g(min), h2g(max - 1) + 1, flag_r, flag_w, flag_x, flag_p, offset, dev_maj, dev_min, inode, path[0] ? " " : "", path); } @@ -5133,14 +5136,6 @@ static int open_self_maps(void *cpu_env, int fd) free(line); fclose(fp); -#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32) - dprintf(fd, "%08llx-%08llx rw-p %08llx 00:00 0 [stack]\n", - (unsigned long long)ts->info->stack_limit, - (unsigned long long)(ts->info->start_stack + - (TARGET_PAGE_SIZE - 1)) & TARGET_PAGE_MASK, - (unsigned long long)0); -#endif - return 0; } |