[Bug target/28197] longjmp and alloca cause bus error at -O0

[geoffk at gcc dot gnu dot org]

------- Comment #3 from geoffk at gcc dot gnu dot org  2007-04-25 19:49 -------
I'm fairly sure this is in fact a bug in GCC.  The problem is that in a routine
which uses setjmp, alloca() must ensure that the previous stack backchain is
preserved, which means it needs to allocate enough space for its allocation,
the linkage area, *and* arguments for any called function.  It's not allocating
enough space for called function arguments.  In the routine given, it's only
allocating 32 bytes where it actually needs to allocate 64.


-- 

geoffk at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
         Resolution|INVALID                     |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28197