https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64256
Bug ID: 64256
Summary: [5.0 Regression] Pointer Bounds Checker builtins enum
overflows stabstring length
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: dje at gcc dot gnu.org
The implementation of pointer bounds checking added an extra version of all
builtins with _CHKP appended, even when -fcheck-pointer-bounds is not enabled.
tree-core.h
/* Codes that identify the various built in functions
so that expand_call can identify them quickly. */
#define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM, COND) ENUM,
enum built_in_function {
#include "builtins.def"
BEGIN_CHKP_BUILTINS,
#undef DEF_BUILTIN
#define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM, COND) ENUM##_CHKP,
#include "builtins.def"
END_CHKP_BUILTINS,
the first _CHKP builtin is 1156
END_CHKP_BUILTINS is 2381
END_BUILTINS is 2388
creating a stabstring for the enum over the 64K limit.
This fails when building stage 1 GCC. All currently deployed GCC compilers
will fail to bootstrap GCC trunk. Note that AIX VAC++ cannot bootstrap the C++
code in current GCC.
