diff options
Diffstat (limited to 'gdb/tm-68k.h')
| -rw-r--r-- | gdb/tm-68k.h | 30 |
1 files changed, 4 insertions, 26 deletions
diff --git a/gdb/tm-68k.h b/gdb/tm-68k.h index 4f1f417..b769ebe 100644 --- a/gdb/tm-68k.h +++ b/gdb/tm-68k.h @@ -288,38 +288,16 @@ extern const struct ext_format ext_format_68881; /* Describe the pointer in each stack frame to the previous stack frame (its caller). */ -/* FRAME_CHAIN takes a frame's nominal address - and produces the frame's chain-pointer. - - However, if FRAME_CHAIN_VALID returns zero, - it means the given frame is the outermost one and has no caller. */ - -/* In the case of the 68000, the frame's nominal address +/* FRAME_CHAIN takes a frame's nominal address and produces the frame's + chain-pointer. + In the case of the 68000, the frame's nominal address is the address of a 4-byte word containing the calling frame's address. */ #define FRAME_CHAIN(thisframe) \ - (outside_startup_file ((thisframe)->pc) ? \ + (!inside_entry_file ((thisframe)->pc) ? \ read_memory_integer ((thisframe)->frame, 4) :\ 0) -#if defined (FRAME_CHAIN_VALID_ALTERNATE) - -/* Use the alternate method of avoiding running up off the end of - the frame chain or following frames back into the startup code. - See the comments in blockframe.c */ - -#define FRAME_CHAIN_VALID(chain, thisframe) \ - (chain != 0 \ - && !(inside_main_scope ((thisframe)->pc)) \ - && !(inside_entry_scope ((thisframe)->pc))) - -#else - -#define FRAME_CHAIN_VALID(chain, thisframe) \ - (chain != 0 && outside_startup_file (FRAME_SAVED_PC (thisframe))) - -#endif /* FRAME_CHAIN_VALID_ALTERNATE */ - /* Define other aspects of the stack frame. */ /* A macro that tells us whether the function invocation represented |