get_longjmp_target (CORE_ADDR *pc)
{
CORE_ADDR jb_addr;
- char buf[TARGET_PTR_BIT / TARGET_CHAR_BIT];
+ char *buf;
+ buf = alloca (TARGET_PTR_BIT / TARGET_CHAR_BIT);
jb_addr = read_register (A0_REGNUM);
if (target_read_memory (jb_addr + JB_PC * JB_ELEMENT_SIZE, buf,