diff options
| -rw-r--r-- | gdb/ChangeLog | 4 | ||||
| -rw-r--r-- | gdb/target.c | 7 |
2 files changed, 11 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 2d6a751..7d7a6fc 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,7 @@ +2013-11-04 Anton Blanchard <anton@samba.org> + + * target.c (memory_xfer_partial): Cap write to 4KB. + 2013-11-01 Tiago Stürmer Daitx <tdaitx@linux.vnet.ibm.com> * breakpoint.c (create_longjmp_master_breakpoint): Allow libc diff --git a/gdb/target.c b/gdb/target.c index 22d7fb6..7aeab79 100644 --- a/gdb/target.c +++ b/gdb/target.c @@ -1678,6 +1678,13 @@ memory_xfer_partial (struct target_ops *ops, enum target_object object, void *buf; struct cleanup *old_chain; + /* A large write request is likely to be partially satisfied + by memory_xfer_partial_1. We will continually malloc + and free a copy of the entire write request for breakpoint + shadow handling even though we only end up writing a small + subset of it. Cap writes to 4KB to mitigate this. */ + len = min (4096, len); + buf = xmalloc (len); old_chain = make_cleanup (xfree, buf); memcpy (buf, writebuf, len); |