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* eval.c (POST_GETCONTEXT): define separately from PRE_GETCONTEXT on

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IA64 to avoid reusing variable address.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@9852 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2006-01-22 13:17:39 +00:00
parent 1b656356f3
commit f41377f226
2 changed files with 53 additions and 41 deletions
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11
ChangeLog
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@ -1,7 +1,14 @@
Sun Jan 22 22:09:52 2006 Tanaka Akira <akr@m17n.org>
* eval.c (POST_GETCONTEXT): define separately from PRE_GETCONTEXT on
IA64 to avoid reusing variable address.
Sun Jan 22 20:03:35 2006 Tanaka Akira <akr@m17n.org>
* eval.c (ruby_setjmp): workaround for FreeBSD/i386
getcontext/setcontext bug.
* eval.c (ruby_setjmp): define PRE_GETCONTEXT and POST_GETCONTEXT
instead of FUNCTION_CALL_MAY_RETURN_TWICE.
define PRE_GETCONTEXT to clear carry flag for workaround of
FreeBSD/i386 getcontext/setcontext bug.
[ruby-dev:28263]
Sat Jan 21 00:36:47 2006 Tanaka Akira <akr@m17n.org>

83
eval.c
View file

@ -143,39 +143,43 @@ rb_jump_context(env, val)
* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21957
* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22127
*/
#define GCC_VERSION_BEFORE(major, minor, patchlevel) \
# define GCC_VERSION_BEFORE(major, minor, patchlevel) \
(defined(__GNUC__) && !defined(__INTEL_COMPILER) && \
((__GNUC__ < (major)) || \
(__GNUC__ == (major) && __GNUC_MINOR__ < (minor)) || \
(__GNUC__ == (major) && __GNUC_MINOR__ == (minor) && __GNUC_PATCHLEVEL__ < (patchlevel))))
#if GCC_VERSION_BEFORE(4,0,3) && (defined(sparc) || defined(__sparc__))
#ifdef __pic__
# if GCC_VERSION_BEFORE(4,0,3) && (defined(sparc) || defined(__sparc__))
# ifdef __pic__
/*
* %l7 is excluded for PIC because it is PIC register.
* http://lists.freebsd.org/pipermail/freebsd-sparc64/2006-January/003739.html
*/
#define PRE_GETCONTEXT \
({ __asm__ volatile ("" : : : \
"%o0", "%o1", "%o2", "%o3", "%o4", "%o5", "%o7", \
"%l0", "%l1", "%l2", "%l3", "%l4", "%l5", "%l6", \
"%i0", "%i1", "%i2", "%i3", "%i4", "%i5", "%i7"); })
#else
#define PRE_GETCONTEXT \
({ __asm__ volatile ("" : : : \
"%o0", "%o1", "%o2", "%o3", "%o4", "%o5", "%o7", \
"%l0", "%l1", "%l2", "%l3", "%l4", "%l5", "%l6", "%l7", \
"%i0", "%i1", "%i2", "%i3", "%i4", "%i5", "%i7"); })
#endif
#define POST_GETCONTEXT PRE_GETCONTEXT
#elif GCC_VERSION_BEFORE(4,0,3) && defined(__ia64)
# define PRE_GETCONTEXT \
({ __asm__ volatile ("" : : : \
"%o0", "%o1", "%o2", "%o3", "%o4", "%o5", "%o7", \
"%l0", "%l1", "%l2", "%l3", "%l4", "%l5", "%l6", \
"%i0", "%i1", "%i2", "%i3", "%i4", "%i5", "%i7"); })
# else
# define PRE_GETCONTEXT \
({ __asm__ volatile ("" : : : \
"%o0", "%o1", "%o2", "%o3", "%o4", "%o5", "%o7", \
"%l0", "%l1", "%l2", "%l3", "%l4", "%l5", "%l6", "%l7", \
"%i0", "%i1", "%i2", "%i3", "%i4", "%i5", "%i7"); })
# endif
# define POST_GETCONTEXT PRE_GETCONTEXT
# elif GCC_VERSION_BEFORE(4,0,3) && defined(__ia64)
static jmp_buf function_call_may_return_twice_jmp_buf;
int function_call_may_return_twice_false = 0;
#define PRE_GETCONTEXT \
(function_call_may_return_twice_false ? \
setjmp(function_call_may_return_twice_jmp_buf) : \
0)
#define POST_GETCONTEXT PRE_GETCONTEXT
#elif defined(__FreeBSD__)
int function_call_may_return_twice_false_1 = 0;
int function_call_may_return_twice_false_2 = 0;
# define PRE_GETCONTEXT \
(function_call_may_return_twice_false_1 ? \
setjmp(function_call_may_return_twice_jmp_buf) : \
0)
# define POST_GETCONTEXT \
(function_call_may_return_twice_false_2 ? \
setjmp(function_call_may_return_twice_jmp_buf) : \
0)
# elif defined(__FreeBSD__)
/*
* workaround for FreeBSD/i386 getcontext/setcontext bug.
* clear the carry flag by (0 ? ... : ...).
@ -183,29 +187,30 @@ int function_call_may_return_twice_false = 0;
* [ruby-dev:28263]
*/
static int volatile freebsd_clear_carry_flag = 0;
#define PRE_GETCONTEXT (freebsd_clear_carry_flag ? (freebsd_clear_carry_flag = 0) : 0)
#endif
# define PRE_GETCONTEXT \
(freebsd_clear_carry_flag ? (freebsd_clear_carry_flag = 0) : 0)
# endif
# ifndef PRE_GETCONTEXT
# define PRE_GETCONTEXT 0
# endif
# ifndef POST_GETCONTEXT
# define POST_GETCONTEXT 0
# endif
#define ruby_longjmp(env, val) rb_jump_context(env, val)
#define ruby_setjmp(j) ((j)->status = 0, \
PRE_GETCONTEXT, \
getcontext(&(j)->context), \
POST_GETCONTEXT, \
(j)->status)
# define ruby_longjmp(env, val) rb_jump_context(env, val)
# define ruby_setjmp(j) ((j)->status = 0, \
PRE_GETCONTEXT, \
getcontext(&(j)->context), \
POST_GETCONTEXT, \
(j)->status)
#else
typedef jmp_buf rb_jmpbuf_t;
#if !defined(setjmp) && defined(HAVE__SETJMP)
#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)
#endif
# if !defined(setjmp) && defined(HAVE__SETJMP)
# 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)
# endif
#endif
#include <sys/types.h>