diff options
Diffstat (limited to 'gcc/libgcc2.c')
| -rw-r--r-- | gcc/libgcc2.c | 82 |
1 files changed, 81 insertions, 1 deletions
diff --git a/gcc/libgcc2.c b/gcc/libgcc2.c index 9df19dce488..001ee1c6c04 100644 --- a/gcc/libgcc2.c +++ b/gcc/libgcc2.c @@ -1530,7 +1530,7 @@ __bb_exit_func (void) fprintf (stderr, "arc profiling: Error closing output file %s.\n", ptr->filename); } - if ((da_file = fopen (ptr->filename, "w")) < 0) + if ((da_file = fopen (ptr->filename, "w")) == 0) { fprintf (stderr, "arc profiling: Can't open output file %s.\n", ptr->filename); @@ -2866,6 +2866,45 @@ __enable_execute_stack () #endif /* __sysV88__ */ +#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 */ + +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"); + +/* Clear instruction cache so we can call trampolines on stack. + This is called from FINALIZE_TRAMPOLINE in mot3300.h. */ + +void +__clear_insn_cache () +{ + 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 /* __sysV68__ */ + #ifdef __pyr__ #undef NULL /* Avoid errors if stdio.h and our stddef.h mismatch. */ @@ -3801,6 +3840,47 @@ label: #endif /* !DWARF2_UNWIND_INFO */ #endif /* L_eh */ + +#ifdef L_eh_compat + +/* This is needed to provide the old names of the frame info registering + code for compatibility. It should be deleted in GCC 2.9.0. */ + +extern void *malloc (); + +struct object { + void *pc_begin; + void *pc_end; + void *fde_begin; + void *fde_array; + size_t count; + struct object *next; +}; + +void __register_frame_info (void *, struct object *); +void __register_frame_info_table (void *, struct object *); +void __deregister_frame_info (void *); + +void +__register_frame (void *begin) +{ + __register_frame_info (begin, malloc (sizeof (struct object))); +} + +void +__register_frame_table (void *begin) +{ + __register_frame_info_table (begin, malloc (sizeof (struct object))); +} + +void +__deregister_frame (void *begin) +{ + /* This leaks the memory malloced above, + but that's good enough for backward compatibility purposes. */ + __deregister_frame_info (begin); +} +#endif #ifdef L_pure #ifndef inhibit_libc |