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| author | Andy Wingo <wingo@pobox.com> | 2023-05-07 09:49:00 +0200 |
|---|---|---|
| committer | Andy Wingo <wingo@pobox.com> | 2023-05-07 09:50:14 +0200 |
| commit | 6efc0b8159f0fc74c0eafec988fe5434fb4d9f51 (patch) | |
| tree | a95fe79f8b252acffaeb9f85fe3caaec9a06c0be /libguile/posix.c | |
| parent | fe6cc6d04ab094ea802907bdc4f728416c0e97ba (diff) | |
| download | guile-6efc0b8159f0fc74c0eafec988fe5434fb4d9f51.tar.gz | |
call-with-values builtin doesn't leave garbage on the stack
Fixes https://debbugs.gnu.org/63279. The issue was that if the producer
thunk caused a backtrace, pretty-printing the call-with-values frame
would segfault because there was an unininitialized slot on the stack.
For functions produced by the compiler this wouldn't be a problem
because there are stack maps, but primitives require that all slots on a
pending stack frame be packed (no uninitialized values) and tagged (all
SCM values, no unboxed values).
* test-suite/tests/error-handling.test: New test.
* test-suite/Makefile.am: Add new file.
* libguile/vm.c (define_vm_builtins): Fix call-with-values to have a
more compact stack.
Diffstat (limited to 'libguile/posix.c')
0 files changed, 0 insertions, 0 deletions