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| author |   Damjan Marion <damarion@cisco.com> | 2022-03-09 14:47:05 +0100 |
|---|---|---|
| committer | Damjan Marion <damarion@cisco.com> | 2022-03-09 14:47:05 +0100 |
| commit | 317cace6185ae134d78a38e1a20249baf751035e (patch) | |
| tree | bc7121e745cbb169a4cd8bfdcbb7e8546982274d /src/vppinfra/callback_data.h | |
| parent | 7fc0ee7f65fbbced6e987f8bfd927a595b7ff7ee (diff) | |
vat: fix vat_suspend crash
Deadly combination is clib_{set,long}jmp + lazy linking + tail call compiler
optimization. On the first call to clib_setjmp, dynamic linker executes loader
code which then calls clib_setjmp, so stored stack position contains dynamic
loader data. Tail call optimization simply jumps back to the calling
code when clib_longjump is called and that results in wrong return
address used from the stack.
Change-Id: Ia7d8dbd5b2c425cdd0449374aa07ab6b684a330e
Type: fix
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vppinfra/callback_data.h')
0 files changed, 0 insertions, 0 deletions