Hello,
For targets that define DONT_USE_BUILTIN_SETJMP, the JMP_BUF_SIZE
macro can be used to set the size of the exception jump buffer. The
JMP_BUF_SIZE macro is not used unless DONT_USE_BUILTIN_SETJMP is
defined. See gcc/except.c and libgcc/unwind-sjlj.c.
The PA and SPARC back ends do not define DONT_USE_BUILTIN_SETJMP, so
they also do not have to define JMP_BUF_SIZE. So:
* config/sparc/sparc.h (JMP_BUF_SIZE): Do not define.
* config/pa/pa.h (JMP_BUF_SIZE): Likewise.
OK for trunk?
The rl78 apparently doesn't know what it wants to do:
/* NOTE: defined but zero means dwarf2 debugging, but sjlj EH. */
#define DWARF2_UNWIND_INFO 0
/*#define DONT_USE_BUILTIN_SETJMP 1*/
#undef DONT_USE_BUILTIN_SETJMP
#define JMP_BUF_SIZE (8*3+8)
But I'll leave that to an rl78 maintainer.
Ciao!
Steven
Index: config/pa/pa.h
===================================================================
--- config/pa/pa.h (revision 188917)
+++ config/pa/pa.h (working copy)
@@ -1508,9 +1508,6 @@ do {
\
of the return address. */
\
(GEN_INT (-4))
-/* The number of Pmode words for the setjmp buffer. */
-#define JMP_BUF_SIZE 50
-
/* We need a libcall to canonicalize function pointers on TARGET_ELF32. */
#define CANONICALIZE_FUNCPTR_FOR_COMPARE_LIBCALL \
"__canonicalize_funcptr_for_compare"
Index: config/sparc/sparc.h
===================================================================
--- config/sparc/sparc.h (revision 188917)
+++ config/sparc/sparc.h (working copy)
@@ -1744,9 +1744,6 @@ extern int sparc_indent_opcode;
#define AS_NIAGARA3_FLAG "d"
#endif
-/* The number of Pmode words for the setjmp buffer. */
-#define JMP_BUF_SIZE 12
-
/* We use gcc _mcount for profiling. */
#define NO_PROFILE_COUNTERS 0
