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target-alpha: Rationalize internal processor registers.

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Delete all the code that tried to emulate the real IPRs of some
unnamed CPU.  Replace those with just 3 slots that we can use to
communicate trap information between the helper functions that
signal exceptions and the OS trap handler.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2011-05-20 13:30:00 -07:00 • committed by Richard Henderson
parent 508b43eaf3
commit 129d8aa575
6 changed files with 23 additions and 562 deletions
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6
linux-user/main.c
View file

@ -2524,9 +2524,9 @@ void cpu_loop (CPUState *env)
env->lock_addr = -1;
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = (page_get_flags(env->ipr[IPR_EXC_ADDR]) & PAGE_VALID
info.si_code = (page_get_flags(env->trap_arg0) & PAGE_VALID
? TARGET_SEGV_ACCERR : TARGET_SEGV_MAPERR);
info._sifields._sigfault._addr = env->ipr[IPR_EXC_ADDR];
info._sifields._sigfault._addr = env->trap_arg0;
queue_signal(env, info.si_signo, &info);
break;
case EXCP_DTB_MISS_PAL:
@ -2550,7 +2550,7 @@ void cpu_loop (CPUState *env)
info.si_signo = TARGET_SIGBUS;
info.si_errno = 0;
info.si_code = TARGET_BUS_ADRALN;
info._sifields._sigfault._addr = env->ipr[IPR_EXC_ADDR];
info._sifields._sigfault._addr = env->trap_arg0;
queue_signal(env, info.si_signo, &info);
break;
case EXCP_OPCDEC: