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authorTom Tromey <tromey@adacore.com>2020-10-20 10:28:58 -0600
committerTom Tromey <tromey@adacore.com>2020-10-20 10:36:04 -0600
commita9b45cb77662d0bb8d312140eee94146f34bd3ce (patch)
treeac3f78889d431f8b80a364f4cb1904199ec6bceb /bfd/elf32-ppc.h
parente0c45dedd909c7a0a6621bdc9061051c185123bb (diff)
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Fix undefined behavior in gdbserver
PR gdb/26742 points out some undefined behavior in gdbserver. The bug is that remove_thread does: free_one_thread (thread); if (current_thread == thread) current_thread = NULL; However, the equality check is undefined, because "thread" has already been freed. This patch fixes the bug by moving the check earlier. Tested on x86-64 Fedora 32. 2020-10-20 Tom Tromey <tromey@adacore.com> PR gdb/26742: * inferiors.cc (remove_thread): Clear current_thread before freeing the thread.
Diffstat (limited to 'bfd/elf32-ppc.h')
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