From cee86be37f49b8e1ec399271b9e7a4945faf34e5 Mon Sep 17 00:00:00 2001 From: Jim Kingdon Date: Tue, 20 Apr 1993 18:02:54 +0000 Subject: * rs6000-tdep.c: Delete unused function print_frame. * frame.h (struct frame_info): Doc fix for next_frame. New field signal_handler_caller. blockframe.c (create_new_frame, get_prev_frame_info), config/rs6000/tm-rs6000.h (INIT_EXTRA_FRAME_INFO): Set it (needs INIT_FRAME_PC_FIRST). stack.c (print_frame_info), rs6000-tdep.c (rs6000_frame_chain): Check it. --- gdb/rs6000-tdep.c | 26 ++++---------------------- 1 file changed, 4 insertions(+), 22 deletions(-) (limited to 'gdb/rs6000-tdep.c') diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c index 5aa7632..12d3361 100644 --- a/gdb/rs6000-tdep.c +++ b/gdb/rs6000-tdep.c @@ -892,23 +892,6 @@ extract_return_value (valtype, regbuf, valbuf) CORE_ADDR rs6000_struct_return_address; -/* Throw away this debugging code. FIXMEmgo. */ -void -print_frame(fram) -int fram; -{ - int ii, val; - for (ii=0; ii<40; ++ii) { - if ((ii % 4) == 0) - printf ("\n"); - val = read_memory_integer (fram + ii * 4, 4); - printf ("0x%08x\t", val); - } - printf ("\n"); -} - - - /* Indirect function calls use a piece of trampoline code to do context switching, i.e. to set the new TOC table. Skip such code if we are on its first instruction (as when we have single-stepped to here). @@ -1098,12 +1081,8 @@ rs6000_frame_chain (thisframe) FRAME_ADDR fp; if (inside_entry_file ((thisframe)->pc)) return 0; - fp = read_memory_integer ((thisframe)->frame, 4); - if (fp == 0 && thisframe->pc < TEXT_SEGMENT_BASE) + if (thisframe->signal_handler_caller) { - /* If we are doing a backtrace from a signal handler, fp will be 0 - and thisframe->pc will be something like 0x3f88 or 0x2790. */ - /* This was determined by experimentation on AIX 3.2. Perhaps it corresponds to some offset in /usr/include/sys/user.h or something like that. Using some system include file would @@ -1114,6 +1093,9 @@ rs6000_frame_chain (thisframe) #define SIG_FRAME_FP_OFFSET 284 fp = read_memory_integer (thisframe->frame + SIG_FRAME_FP_OFFSET, 4); } + else + fp = read_memory_integer ((thisframe)->frame, 4); + return fp; } -- cgit v1.1