diff options
Diffstat (limited to 'gcc/ada/tracebak.c')
| -rw-r--r-- | gcc/ada/tracebak.c | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/gcc/ada/tracebak.c b/gcc/ada/tracebak.c index 01b9654..2c8335d 100644 --- a/gcc/ada/tracebak.c +++ b/gcc/ada/tracebak.c @@ -287,10 +287,9 @@ __gnat_backtrace (void **array, #error Unhandled darwin architecture. #endif -/*---------------------- PPC AIX/PPC Lynx 178/Older Darwin ------------------*/ +/*------------------------ PPC AIX/Older Darwin -------------------------*/ #elif ((defined (_POWER) && defined (_AIX)) || \ - (defined (__powerpc__) && defined (__Lynx__) && !defined(__ELF__)) || \ - (defined (__ppc__) && defined (__APPLE__))) +(defined (__ppc__) && defined (__APPLE__))) #define USE_GENERIC_UNWINDER @@ -308,23 +307,9 @@ struct layout should to feature a null backchain, AIX might expose a null return address instead. */ -/* Then LynxOS-178 features yet another variation, with return_address - == &__start, which we only add conditionally as this symbol is not - necessarily present elsewhere. Beware that &bla returns the - address of a descriptor when "bla" is a function. Getting the code - address requires an extra dereference. */ - -#if defined (__Lynx__) -extern void __start(); -#define EXTRA_STOP_CONDITION(CURRENT) ((CURRENT)->return_address == *(void**)&__start) -#else -#define EXTRA_STOP_CONDITION(CURRENT) (0) -#endif - #define STOP_FRAME(CURRENT, TOP_STACK) \ (((void *) (CURRENT) < (TOP_STACK)) \ - || (CURRENT)->return_address == NULL \ - || EXTRA_STOP_CONDITION(CURRENT)) + || (CURRENT)->return_address == NULL) /* The PPC ABI has an interesting specificity: the return address saved by a function is located in it's caller's frame, and the save operation only |