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| author | dim <dim@FreeBSD.org> | 2012-03-13 19:40:56 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2012-03-13 19:40:56 +0000 |
| commit | b17841f4d2ac6e5e7fa3a9ffadbdb8c97acd19e8 (patch) | |
| tree | 254e37d2140c102499d0367ccbccdeedd54c075b /contrib/gdb | |
| parent | 181468133124a1c1985ea494e82b209c11572f4e (diff) | |
| download | FreeBSD-src-b17841f4d2ac6e5e7fa3a9ffadbdb8c97acd19e8.zip FreeBSD-src-b17841f4d2ac6e5e7fa3a9ffadbdb8c97acd19e8.tar.gz | |
Pull in a fix (still under GPLv2) for a double free in gdb, leading to
an assert, which can occur if you repeatedly dlopen() and dlclose() a
.so file in a tight loop. This was reported on freebsd-current@ by
Alexandre Martins, with a sample to reproduce the behaviour.
Obtained from: http://sourceware.org/git/?p=gdb.git;a=commit;h=a6f2cbb341520f8e100f4b8305979dd6207a79e8
Diffstat (limited to 'contrib/gdb')
| -rw-r--r-- | contrib/gdb/gdb/target.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/contrib/gdb/gdb/target.c b/contrib/gdb/gdb/target.c index ff47ac1..1f703dd 100644 --- a/contrib/gdb/gdb/target.c +++ b/contrib/gdb/gdb/target.c @@ -1425,6 +1425,13 @@ target_resize_to_sections (struct target_ops *target, int num_added) (*t)->to_sections_end = target->to_sections_end; } } + /* There is a flattened view of the target stack in current_target, + so its to_sections pointer might also need updating. */ + if (current_target.to_sections == old_value) + { + current_target.to_sections = target->to_sections; + current_target.to_sections_end = target->to_sections_end; + } } return old_count; |
