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qemu/0012-XXX-linux-user-fake-proc-self-maps-even-more.patch
Alexander Graf f0bf933e69 - qemu-user: add fix for deadloop with ulimit constraints
- qemu-user: add device mapper and loopback ioctls, enabling kpatkx

OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=40
2012-01-31 23:10:40 +00:00

70 lines
2.3 KiB
Diff

From 146dddbec44c48417f776d54f823093b464e596c Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Mon, 28 Nov 2011 17:05:24 +0100
Subject: [PATCH] XXX linux-user: fake /proc/self/maps even more
---
linux-user/syscall.c | 40 +++++++++++++++++++++++++++++++++++++++-
1 files changed, 39 insertions(+), 1 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 5810e2a..4af0edb 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -4606,13 +4606,51 @@ int get_osversion(void)
static int open_self_maps(void *cpu_env, int fd)
{
+#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
TaskState *ts = ((CPUState *)cpu_env)->opaque;
+#endif
+ FILE *fp;
+ char *line = NULL;
+ size_t len = 0;
+ ssize_t read;
+
+ fp = fopen("/proc/self/maps", "r");
+ if (fp == NULL) {
+ return -EACCES;
+ }
+ while ((read = getline(&line, &len, fp)) != -1) {
+ int fields, dev_maj, dev_min, inode;
+ uint64_t min, max, offset;
+ char flag_r, flag_w, flag_x, flag_p;
+ char path[512] = "";
+ fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %d:%d %d"
+ " %512s", &min, &max, &flag_r, &flag_w, &flag_x,
+ &flag_p, &offset, &dev_maj, &dev_min, &inode, path);
+
+ if ((fields < 10) || (fields > 11)) {
+ continue;
+ }
+ if (!strncmp(path, "[stack]", 7)) {
+ continue;
+ }
+ if (h2g_valid(min) && h2g_valid(max)) {
+ dprintf(fd, TARGET_FMT_lx "-" TARGET_FMT_lx " %c%c%c%c %08" PRIx64
+ " %02d:%02d %d%s%s\n", h2g(min), h2g(max), flag_r, flag_w,
+ flag_x, flag_p, offset, dev_maj, dev_min, inode,
+ path[0] ? " " : "", path);
+ }
+ }
+
+ free(line);
+
+#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->stack_base + (TARGET_PAGE_SIZE - 1))
& TARGET_PAGE_MASK,
- (unsigned long long)ts->stack_base);
+ (unsigned long long)0);
+#endif
return 0;
}
--
1.6.0.2