diff options
| -rw-r--r-- | ChangeLog | 13 | ||||
| -rw-r--r-- | configure.in | 48 | ||||
| -rw-r--r-- | eval_intern.h | 10 | ||||
| -rw-r--r-- | gc.c | 16 | ||||
| -rw-r--r-- | vm_core.h | 2 |
5 files changed, 72 insertions, 17 deletions
@@ -1,3 +1,16 @@ +Tue Apr 1 02:58:39 2008 Nobuyoshi Nakada <nobu@ruby-lang.org> + + * configure.in (RUBY_SETJMP, RUBY_LONGJMP, RUBY_JMP_BUF): prefers + __builtin_setjmp, _setjmp over setjmp and sigsetjmp. + [ruby-core:16023], [ruby-core:16086] + + * configure.in (--with-setjmp-type): new option to override the + default rule in the above. + + * eval_intern.h (ruby_setjmp, ruby_longjmp), gc.c (rb_setjmp), + vm_core.h (rb_jmpbuf_t): use RUBY_SETJMP, RUBY_LONGJMP and + RUBY_JMP_BUF. + Tue Apr 1 01:55:52 2008 Nobuyoshi Nakada <nobu@ruby-lang.org> * lib/resolv.rb (Resolv::Config.default_config_hash): requires diff --git a/configure.in b/configure.in index f2884a0b33..8d10a7b3b8 100644 --- a/configure.in +++ b/configure.in @@ -709,6 +709,54 @@ AC_CHECK_FUNCS(fmod killpg wait4 waitpid fork spawnv syscall chroot fsync getcwd setuid setgid daemon select_large_fdset setenv unsetenv\ mktime timegm clock_gettime gettimeofday\ pread sendfile) + +AC_CACHE_CHECK(for __builtin_setjmp, ac_cv_func___builtin_setjmp, +[AC_TRY_LINK([@%:@include <setjmp.h> + jmp_buf jb; void t() {__builtin_longjmp(jb, 1);}], + [__builtin_setjmp(jb);], + [ac_cv_func___builtin_setjmp=yes], + [ac_cv_func___builtin_setjmp=no]) +]) + +AC_MSG_CHECKING(for setjmp type) +AC_ARG_WITH(setjmp-type, + [ --with-setjmp-type select setjmp type], [ + case $withval in + __builtin_setjmp) setjmp_prefix=__builtin_;; + _setjmp) setjmp_prefix=_;; + sigsetjmp) setjmp_prefix=sig;; + setjmp) setjmp_prefix=;; + '') unset setjmp_prefix;; + *) AC_MSG_ERROR(invalid setjmp type: $withval);; + esac], [unset setjmp_prefix]) +if test ${setjmp_prefix+set}; then + if test "${setjmp_prefix}" && eval test '$ac_cv_'${setjmp_prefix}setjmp = no; then + AC_MSG_ERROR(${setjmp_prefix}setjmp is not available) + fi +elif test "$ac_cv_func___builtin_setjmp" = yes; then + setjmp_prefix=__builtin_ +elif test "$ac_cv_func__setjmp" = yes; then + setjmp_prefix=_ +elif test "$ac_cv_func_sigsetjmp" = yes; then + case $target_os in + solaris*|cygwin*) + setjmp_prefix=;; + *) + setjmp_prefix=sig;; + esac +else + setjmp_prefix= +fi +if test $setjmp_prefix = sig; then + setjmp_sigmask=yes +else + unset setjmp_sigmask +fi +AC_MSG_RESULT(${setjmp_prefix}setjmp) +AC_DEFINE_UNQUOTED([RUBY_SETJMP(env)], [${setjmp_prefix}setjmp(env${setjmp_sigmask+,0})]) +AC_DEFINE_UNQUOTED([RUBY_LONGJMP(env,val)], [${setjmp_prefix}longjmp(env,val)]) +AC_DEFINE_UNQUOTED(RUBY_JMP_BUF, ${setjmp_sigmask+${setjmp_prefix}}jmp_buf) + AC_ARG_ENABLE(setreuid, [ --enable-setreuid use setreuid()/setregid() according to need even if obsolete.], [use_setreuid=$enableval]) diff --git a/eval_intern.h b/eval_intern.h index 52d2969844..8296ee0f51 100644 --- a/eval_intern.h +++ b/eval_intern.h @@ -81,12 +81,10 @@ char *strrchr(const char *, const char); #include "vmsruby_private.h" #endif -#if !defined(setjmp) && defined(HAVE__SETJMP) && !defined(sigsetjmp) && !defined(HAVE_SIGSETJMP) -#define ruby_setjmp(env) _setjmp(env) -#define ruby_longjmp(env,val) _longjmp(env,val) -#else -#define ruby_setjmp(env) setjmp(env) -#define ruby_longjmp(env,val) longjmp(env,val) +#define ruby_setjmp(env) RUBY_SETJMP(env) +#define ruby_longjmp(env,val) RUBY_LONGJMP(env,val) +#ifdef __CYGWIN__ +int _setjmp(), _longjmp(); #endif #include <sys/types.h> @@ -52,9 +52,8 @@ int rb_io_fptr_finalize(struct rb_io_t*); -#if !defined(setjmp) && defined(HAVE__SETJMP) && !defined(sigsetjmp) && !defined(HAVE_SIGSETJMP) -#define setjmp(env) _setjmp(env) -#endif +#define rb_setjmp(env) RUBY_SETJMP(env) +#define rb_jmp_buf rb_jmpbuf_t /* Make alloca work the best possible way. */ #ifdef __GNUC__ @@ -1427,6 +1426,8 @@ obj_free(VALUE obj) #ifdef __GNUC__ #if defined(__human68k__) || defined(DJGPP) +#undef rb_setjmp +#undef rb_jmp_buf #if defined(__human68k__) typedef unsigned long rb_jmp_buf[8]; __asm__ (".even\n\ @@ -1435,9 +1436,6 @@ _rb_setjmp:\n\ movem.l d3-d7/a3-a5,(a0)\n\ moveq.l #0,d0\n\ rts"); -#ifdef setjmp -#undef setjmp -#endif #else #if defined(DJGPP) typedef unsigned long rb_jmp_buf[6]; @@ -1458,8 +1456,6 @@ _rb_setjmp:\n\ #endif #endif int rb_setjmp (rb_jmp_buf); -#define jmp_buf rb_jmp_buf -#define setjmp rb_setjmp #endif /* __human68k__ or DJGPP */ #endif /* __GNUC__ */ @@ -1470,7 +1466,7 @@ void rb_vm_mark(void *ptr); static void mark_current_machine_context(rb_thread_t *th) { - jmp_buf save_regs_gc_mark; + rb_jmp_buf save_regs_gc_mark; VALUE *stack_start, *stack_end; SET_STACK_END; @@ -1493,7 +1489,7 @@ mark_current_machine_context(rb_thread_t *th) FLUSH_REGISTER_WINDOWS; /* This assumes that all registers are saved into the jmp_buf (and stack) */ - setjmp(save_regs_gc_mark); + rb_setjmp(save_regs_gc_mark); mark_locations_array((VALUE*)save_regs_gc_mark, sizeof(save_regs_gc_mark) / sizeof(VALUE)); @@ -346,7 +346,7 @@ enum rb_thread_status { THREAD_KILLED, }; -typedef jmp_buf rb_jmpbuf_t; +typedef RUBY_JMP_BUF rb_jmpbuf_t; struct rb_vm_tag { rb_jmpbuf_t buf; |