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dwarf2-signal.h (MAKE_THROW_FRAME): Add for IA-64.
2002-03-25 Andrew Haley <aph@cambridge.redhat.com>, Hans Boehm <Hans_Boehm@hp.com> * include/dwarf2-signal.h (MAKE_THROW_FRAME): Add for IA-64. (INIT_SEGV, INIT_FPE): Add versions that use __libc_sigaction instead of syscall on IA-64. Add FIXME comment. From-SVN: r51459
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@ -1,3 +1,10 @@
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2002-03-25 Andrew Haley <aph@cambridge.redhat.com>, Hans Boehm <Hans_Boehm@hp.com>
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* include/dwarf2-signal.h (MAKE_THROW_FRAME): Add for IA-64.
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(INIT_SEGV, INIT_FPE): Add versions that use __libc_sigaction
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instead of syscall on IA-64.
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Add FIXME comment.
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2002-03-27 Anthony Green <green@redhat.com>
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* libgcj.spec.in: Add CHECKREFSPEC.
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@ -41,6 +41,23 @@ do \
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_sc->sc_pc += 4; \
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} \
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while (0)
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#elif defined(__ia64__)
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#define MAKE_THROW_FRAME(_exception) \
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do \
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{ \
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/* IA-64 either leaves PC pointing at a faulting instruction or the \
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following instruction, depending on the signal. SEGV always does \
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the former, so we adjust the saved PC to point to the following \
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instruction; this is what the handler in libgcc expects. */ \
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/* Note that we are lying to the unwinder here, which expects the \
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faulting pc, not pc+1. But we claim the unwind information can't \
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be changed by such a ld or st instruction, so it doesn't matter. */ \
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struct sigcontext *_sc = (struct sigcontext *)_p; \
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_sc->sc_ip++; \
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} \
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while (0)
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#else
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#define MAKE_THROW_FRAME(_exception) \
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do \
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@ -50,6 +67,7 @@ do \
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while (0)
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#endif
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#ifndef __ia64__
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#define INIT_SEGV \
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do \
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{ \
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@ -82,4 +100,41 @@ while (0)
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* go away once all systems have pthreads libraries that are
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* compiled with full unwind info. */
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#else /* __ia64__ */
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// FIXME: We shouldn't be using libc_sigaction here, since it should
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// be glibc private. But using syscall here would mean translating to
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// the kernel's struct sigaction and argument sequence, which we
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// shouldn't either. The right solution is to call sigaction and to
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// make sure that we can unwind correctly through the pthread signal
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// wrapper.
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extern "C" int __libc_sigaction (int __sig,
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__const struct sigaction *__restrict __act,
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struct sigaction *__restrict __oact) throw ();
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#define INIT_SEGV \
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do \
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{ \
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nullp = new java::lang::NullPointerException (); \
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struct sigaction act; \
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act.sa_sigaction = _Jv_catch_segv; \
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sigemptyset (&act.sa_mask); \
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act.sa_flags = SA_SIGINFO; \
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__libc_sigaction (SIGSEGV, &act, NULL); \
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} \
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while (0)
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#define INIT_FPE \
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do \
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{ \
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arithexception = new java::lang::ArithmeticException \
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(JvNewStringLatin1 ("/ by zero")); \
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struct sigaction act; \
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act.sa_sigaction = _Jv_catch_fpe; \
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sigemptyset (&act.sa_mask); \
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act.sa_flags = SA_SIGINFO; \
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__libc_sigaction (SIGFPE, &act, NULL); \
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} \
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while (0)
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#endif /* __ia64__ */
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#endif /* JAVA_SIGNAL_H */
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