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sysv68
- From: "Kaveh R. Ghazi" <ghazi at caip dot rutgers dot edu>
- To: zack at codesourcery dot com
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Sat, 14 Jun 2003 14:13:35 -0400 (EDT)
- Subject: sysv68
Zack - I believe these bits should have been deleted when the
m68k-motorola-sysv port was zapped.
Ok for mainline?
Thanks,
--Kaveh
PS: There are a number of targets which don't even link cc1 (and
haven't for a few releases.) I believe these should be additional
candidates for deprecation and removal. If I determine which entries
are suitable for such a list, can we obsolete some more cruft?
2003-06-14 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* libgcc2.c: Delete sysV68 L_trampoline section.
* config/m68k/mot3300-crt0.S: Delete file.
* config/m68k/mot3300Mcrt0.S: Likewise.
diff -rup orig/egcc-CVS20030613/gcc/libgcc2.c egcc-CVS20030613/gcc/libgcc2.c
--- orig/egcc-CVS20030613/gcc/libgcc2.c 2003-06-07 20:01:33.000000000 -0400
+++ egcc-CVS20030613/gcc/libgcc2.c 2003-06-14 13:50:40.319663497 -0400
@@ -1496,51 +1496,6 @@ mprotect (char *addr, int len, int prot)
#ifdef TRANSFER_FROM_TRAMPOLINE
TRANSFER_FROM_TRAMPOLINE
#endif
-
-#ifdef __sysV68__
-
-#include <sys/signal.h>
-#include <errno.h>
-
-/* Motorola forgot to put memctl.o in the libp version of libc881.a,
- so define it here, because we need it in __clear_insn_cache below */
-/* On older versions of this OS, no memctl or MCT_TEXT are defined;
- hence we enable this stuff only if MCT_TEXT is #define'd. */
-
-#ifdef MCT_TEXT
-asm("\n\
- global memctl\n\
-memctl:\n\
- movq &75,%d0\n\
- trap &0\n\
- bcc.b noerror\n\
- jmp cerror%\n\
-noerror:\n\
- movq &0,%d0\n\
- rts");
-#endif
-
-/* Clear instruction cache so we can call trampolines on stack.
- This is called from FINALIZE_TRAMPOLINE in mot3300.h. */
-
-void
-__clear_insn_cache (void)
-{
-#ifdef MCT_TEXT
- int save_errno;
-
- /* Preserve errno, because users would be surprised to have
- errno changing without explicitly calling any system-call. */
- save_errno = errno;
-
- /* Keep it simple : memctl (MCT_TEXT) always fully clears the insn cache.
- No need to use an address derived from _start or %sp, as 0 works also. */
- memctl(0, 4096, MCT_TEXT);
- errno = save_errno;
-#endif
-}
-
-#endif /* __sysV68__ */
#endif /* L_trampoline */
#ifndef __CYGWIN__