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When doing leak checks, don't poke around in device segments as this

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may hang the entire machine.  (Tom Hughes).



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5990
This commit is contained in:
Julian Seward
2006-07-27 23:12:17 +00:00
parent ed31950b18
commit 25499151ed
1 changed files with 15 additions and 0 deletions
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15
memcheck/mc_leakcheck.c
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@@ -763,6 +763,21 @@ void MC_(do_detect_memory_leaks) (
continue;
if (seg->isCH)
continue;
/* Don't poke around in device segments as this may cause
hangs. Exclude /dev/zero just in case someone allocated
memory by explicitly mapping /dev/zero. */
if (seg->kind == SkFileC
&& (VKI_S_ISCHR(seg->mode) || VKI_S_ISBLK(seg->mode))) {
HChar* dev_name = VG_(am_get_filename)( seg );
if (dev_name && 0 == VG_(strcmp)(dev_name, "/dev/zero")) {
/* don't skip /dev/zero */
} else {
/* skip this device mapping */
continue;
}
}
if (0)
VG_(printf)("ACCEPT %2d %p %p\n", i, seg->start, seg->end);
lc_scan_memory(seg->start, seg->end+1 - seg->start);