On Mon, Jun 25, 2012 at 10:46 AM, Eric Botcazou
ebotca...@libertysurf.fr wrote:
It looks like DONT_USE_BUILTIN_SETJMP was invented for the IA-64, probably
because of the Register Stack Engine. But SPARC also has register windows,
albeit less sophisticated, and can do without it. Morever, the
On 06/26/2012 01:55 AM, Steven Bosscher wrote:
If __builtin_setjmp actually does work for ia64, why should we keep
DONT_USE_BUILTIN_SETJMP? Could it break user code somehow?
It's an ABI change for anyone using --enable-sjlj-exceptions.
But I don't know who that would be...
r~
On Tue, Jun 26, 2012 at 7:09 PM, John David Anglin dave.ang...@bell.net wrote:
On 6/26/2012 11:38 AM, Richard Henderson wrote:
On 06/26/2012 01:55 AM, Steven Bosscher wrote:
If __builtin_setjmp actually does work for ia64, why should we keep
DONT_USE_BUILTIN_SETJMP? Could it break user code
On 6/26/2012 1:21 PM, Steven Bosscher wrote:
On Tue, Jun 26, 2012 at 7:09 PM, John David Anglin dave.ang...@bell.net wrote:
On 6/26/2012 11:38 AM, Richard Henderson wrote:
On 06/26/2012 01:55 AM, Steven Bosscher wrote:
If __builtin_setjmp actually does work for ia64, why should we keep
On Jun 26, 2012, at 1:55 AM, Steven Bosscher wrote:
On Mon, Jun 25, 2012 at 10:46 AM, Eric Botcazou
ebotca...@libertysurf.fr wrote:
It looks like DONT_USE_BUILTIN_SETJMP was invented for the IA-64, probably
because of the Register Stack Engine. But SPARC also has register windows,
albeit
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?
OK for the SPARC, thanks. What about the
On Mon, Jun 25, 2012 at 12:31 AM, DJ Delorie d...@redhat.com wrote:
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
On Mon, Jun 25, 2012 at 9:13 AM, Eric Botcazou ebotca...@libertysurf.fr wrote:
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
On Jun 25, 2012, at 10:26 AM, Steven Bosscher wrote:
On Mon, Jun 25, 2012 at 9:13 AM, Eric Botcazou ebotca...@libertysurf.fr
wrote:
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
Right, I didn't look at the details of the uses of
DONT_USE_BUILTIN_SETJMP and JMP_BUF_SIZE but it looks like the ones in
picochip and stormy16 are redundant too:
For picochip, this port defines DONT_USE_BUILTIN_SETJMP but in the .c
file (and after all #includes), so it is never exported and
Let me try again then...
RL78 is confusing and it took a while to get it to work right. Please
don't change it ;-)
RL78 is confusing and it took a while to get it to work right. Please
don't change it ;-)
But we can certainly remove stuff that doesn't do anything; in particular,
these 3 lines
/*#define DONT_USE_BUILTIN_SETJMP 1*/
#undef DONT_USE_BUILTIN_SETJMP
#define JMP_BUF_SIZE (8*3+8)
can be proved
But we can certainly remove stuff that doesn't do anything; in particular,
these 3 lines
/*#define DONT_USE_BUILTIN_SETJMP 1*/
#undef DONT_USE_BUILTIN_SETJMP
#define JMP_BUF_SIZE (8*3+8)
can be proved to be equivalent to the empty set.
If you say so, go for it ;-)
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
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
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