tarantool / tarantool / 21665909221

88%

push

github

coro: do not clear rbp in coro_init

Currently `rbp` register is cleared in `coro_init()` to stop unwinding.
However, despite the fact that this register is present in the clobber
list, and `coro.c` is compiled with `-fomit-frame-pointer`, a compiler
tries to use `rbp`. It seems that zeroing out of `rbp` is actually not
required. This patch reverts a part of commit 761053f0aae8 ("coro: fix
`coro_{init,startup}` unwind information").

Closes #12216

NO_DOC=bugfix
NO_CHANGELOG=internal
NO_TEST=hard to create a stable reproducer

70258 of 118255 branches covered (59.41%)

105612 of 120565 relevant lines covered (87.6%)

1386530.71 hits per line