mirror of
https://github.com/bminor/binutils-gdb.git
synced 2025-12-27 01:28:46 +00:00
import gdb-1999-07-07 post reformat
This commit is contained in:
283
gdb/blockframe.c
283
gdb/blockframe.c
@@ -1,23 +1,24 @@
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/* Get info from stack frames;
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convert between frames, blocks, functions and pc values.
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Copyright 1986, 87, 88, 89, 91, 94, 95, 96, 97, 1998
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
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This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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||||
GNU General Public License for more details.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
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||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
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||||
Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "symtab.h"
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@@ -45,14 +46,14 @@ default_frame_chain_valid (chain, thisframe)
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struct frame_info *thisframe;
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{
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return ((chain) != 0
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&& !inside_main_func ((thisframe) -> pc)
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&& !inside_entry_func ((thisframe) -> pc));
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&& !inside_main_func ((thisframe)->pc)
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&& !inside_entry_func ((thisframe)->pc));
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}
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/* Use the alternate method of avoiding running up off the end of the
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frame chain or following frames back into the startup code. See
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the comments in objfiles.h. */
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int
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alternate_frame_chain_valid (chain, thisframe)
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CORE_ADDR chain;
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@@ -63,7 +64,7 @@ alternate_frame_chain_valid (chain, thisframe)
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}
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/* A very simple method of determining a valid frame */
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int
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nonnull_frame_chain_valid (chain, thisframe)
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CORE_ADDR chain;
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@@ -91,13 +92,13 @@ inside_entry_file (addr)
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if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
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{
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/* Do not stop backtracing if the pc is in the call dummy
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at the entry point. */
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at the entry point. */
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/* FIXME: Won't always work with zeros for the last two arguments */
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if (PC_IN_CALL_DUMMY (addr, 0, 0))
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if (PC_IN_CALL_DUMMY (addr, 0, 0))
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return 0;
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}
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return (addr >= symfile_objfile -> ei.entry_file_lowpc &&
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addr < symfile_objfile -> ei.entry_file_highpc);
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return (addr >= symfile_objfile->ei.entry_file_lowpc &&
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addr < symfile_objfile->ei.entry_file_highpc);
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}
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/* Test a specified PC value to see if it is in the range of addresses
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@@ -110,7 +111,7 @@ inside_entry_file (addr)
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int
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inside_main_func (pc)
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CORE_ADDR pc;
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CORE_ADDR pc;
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{
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if (pc == 0)
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return 1;
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@@ -121,22 +122,22 @@ CORE_ADDR pc;
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This is for FRAME_CHAIN_VALID_ALTERNATE. I do this for coff, because
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it is unable to set it up and symbol reading time. */
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if (symfile_objfile -> ei.main_func_lowpc == INVALID_ENTRY_LOWPC &&
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symfile_objfile -> ei.main_func_highpc == INVALID_ENTRY_HIGHPC)
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if (symfile_objfile->ei.main_func_lowpc == INVALID_ENTRY_LOWPC &&
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symfile_objfile->ei.main_func_highpc == INVALID_ENTRY_HIGHPC)
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{
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struct symbol *mainsym;
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mainsym = lookup_symbol ("main", NULL, VAR_NAMESPACE, NULL, NULL);
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if (mainsym && SYMBOL_CLASS(mainsym) == LOC_BLOCK)
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{
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symfile_objfile->ei.main_func_lowpc =
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if (mainsym && SYMBOL_CLASS (mainsym) == LOC_BLOCK)
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{
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symfile_objfile->ei.main_func_lowpc =
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BLOCK_START (SYMBOL_BLOCK_VALUE (mainsym));
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symfile_objfile->ei.main_func_highpc =
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symfile_objfile->ei.main_func_highpc =
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BLOCK_END (SYMBOL_BLOCK_VALUE (mainsym));
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}
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}
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}
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return (symfile_objfile -> ei.main_func_lowpc <= pc &&
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symfile_objfile -> ei.main_func_highpc > pc);
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return (symfile_objfile->ei.main_func_lowpc <= pc &&
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symfile_objfile->ei.main_func_highpc > pc);
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}
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/* Test a specified PC value to see if it is in the range of addresses
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@@ -158,13 +159,13 @@ inside_entry_func (pc)
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if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
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{
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/* Do not stop backtracing if the pc is in the call dummy
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at the entry point. */
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at the entry point. */
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/* FIXME: Won't always work with zeros for the last two arguments */
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if (PC_IN_CALL_DUMMY (pc, 0, 0))
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return 0;
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}
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return (symfile_objfile -> ei.entry_func_lowpc <= pc &&
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symfile_objfile -> ei.entry_func_highpc > pc);
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return (symfile_objfile->ei.entry_func_lowpc <= pc &&
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symfile_objfile->ei.entry_func_highpc > pc);
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}
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/* Info about the innermost stack frame (contents of FP register) */
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@@ -188,7 +189,7 @@ void
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frame_saved_regs_zalloc (fi)
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struct frame_info *fi;
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{
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fi->saved_regs = (CORE_ADDR*)
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fi->saved_regs = (CORE_ADDR *)
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frame_obstack_alloc (SIZEOF_FRAME_SAVED_REGS);
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memset (fi->saved_regs, 0, SIZEOF_FRAME_SAVED_REGS);
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}
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@@ -237,7 +238,7 @@ create_new_frame (addr, pc)
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fi->prev = NULL;
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fi->frame = addr;
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fi->pc = pc;
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find_pc_partial_function (pc, &name, (CORE_ADDR *)NULL,(CORE_ADDR *)NULL);
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find_pc_partial_function (pc, &name, (CORE_ADDR *) NULL, (CORE_ADDR *) NULL);
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fi->signal_handler_caller = IN_SIGTRAMP (fi->pc, name);
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#ifdef INIT_EXTRA_FRAME_INFO
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@@ -266,7 +267,7 @@ flush_cached_frames ()
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obstack_free (&frame_cache_obstack, 0);
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obstack_init (&frame_cache_obstack);
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current_frame = NULL; /* Invalidate cache */
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current_frame = NULL; /* Invalidate cache */
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select_frame (NULL, -1);
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annotate_frames_invalid ();
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}
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@@ -306,7 +307,7 @@ frameless_look_for_prologue (frame)
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after_prologue = func_start;
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#ifdef SKIP_PROLOGUE_FRAMELESS_P
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/* This is faster, since only care whether there *is* a prologue,
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not how long it is. */
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not how long it is. */
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after_prologue = SKIP_PROLOGUE_FRAMELESS_P (after_prologue);
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#else
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after_prologue = SKIP_PROLOGUE (after_prologue);
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@@ -360,9 +361,9 @@ get_prev_frame (next_frame)
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{
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#if 0
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/* This screws value_of_variable, which just wants a nice clean
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NULL return from block_innermost_frame if there are no frames.
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I don't think I've ever seen this message happen otherwise.
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And returning NULL here is a perfectly legitimate thing to do. */
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NULL return from block_innermost_frame if there are no frames.
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I don't think I've ever seen this message happen otherwise.
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And returning NULL here is a perfectly legitimate thing to do. */
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if (!current_frame)
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{
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error ("You haven't set up a process's stack to examine.");
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@@ -395,18 +396,18 @@ get_prev_frame (next_frame)
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if (!fromleaf)
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{
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/* Two macros defined in tm.h specify the machine-dependent
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actions to be performed here.
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First, get the frame's chain-pointer.
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If that is zero, the frame is the outermost frame or a leaf
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called by the outermost frame. This means that if start
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calls main without a frame, we'll return 0 (which is fine
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anyway).
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actions to be performed here.
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First, get the frame's chain-pointer.
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If that is zero, the frame is the outermost frame or a leaf
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called by the outermost frame. This means that if start
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calls main without a frame, we'll return 0 (which is fine
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anyway).
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Nope; there's a problem. This also returns when the current
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routine is a leaf of main. This is unacceptable. We move
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this to after the ffi test; I'd rather have backtraces from
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start go curfluy than have an abort called from main not show
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main. */
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Nope; there's a problem. This also returns when the current
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routine is a leaf of main. This is unacceptable. We move
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this to after the ffi test; I'd rather have backtraces from
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start go curfluy than have an abort called from main not show
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main. */
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address = FRAME_CHAIN (next_frame);
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if (!FRAME_CHAIN_VALID (address, next_frame))
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return 0;
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@@ -432,11 +433,11 @@ get_prev_frame (next_frame)
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after INIT_EXTRA_FRAME_INFO and come up with a simple way to
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express what goes on here.
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INIT_EXTRA_FRAME_INFO is called from two places: create_new_frame
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(where the PC is already set up) and here (where it isn't).
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INIT_FRAME_PC is only called from here, always after
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INIT_EXTRA_FRAME_INFO.
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INIT_EXTRA_FRAME_INFO is called from two places: create_new_frame
|
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(where the PC is already set up) and here (where it isn't).
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INIT_FRAME_PC is only called from here, always after
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INIT_EXTRA_FRAME_INFO.
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The catch is the MIPS, where INIT_EXTRA_FRAME_INFO requires the PC
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value (which hasn't been set yet). Some other machines appear to
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require INIT_EXTRA_FRAME_INFO before they can do INIT_FRAME_PC. Phoo.
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@@ -448,24 +449,24 @@ get_prev_frame (next_frame)
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INIT_EXTRA_FRAME_INFO, one possible scheme:
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SETUP_INNERMOST_FRAME()
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Default version is just create_new_frame (read_fp ()),
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read_pc ()). Machines with extra frame info would do that (or the
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local equivalent) and then set the extra fields.
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Default version is just create_new_frame (read_fp ()),
|
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read_pc ()). Machines with extra frame info would do that (or the
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local equivalent) and then set the extra fields.
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SETUP_ARBITRARY_FRAME(argc, argv)
|
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Only change here is that create_new_frame would no longer init extra
|
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frame info; SETUP_ARBITRARY_FRAME would have to do that.
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Only change here is that create_new_frame would no longer init extra
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frame info; SETUP_ARBITRARY_FRAME would have to do that.
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INIT_PREV_FRAME(fromleaf, prev)
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Replace INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC. This should
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also return a flag saying whether to keep the new frame, or
|
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whether to discard it, because on some machines (e.g. mips) it
|
||||
is really awkward to have FRAME_CHAIN_VALID called *before*
|
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INIT_EXTRA_FRAME_INFO (there is no good way to get information
|
||||
deduced in FRAME_CHAIN_VALID into the extra fields of the new frame).
|
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Replace INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC. This should
|
||||
also return a flag saying whether to keep the new frame, or
|
||||
whether to discard it, because on some machines (e.g. mips) it
|
||||
is really awkward to have FRAME_CHAIN_VALID called *before*
|
||||
INIT_EXTRA_FRAME_INFO (there is no good way to get information
|
||||
deduced in FRAME_CHAIN_VALID into the extra fields of the new frame).
|
||||
std_frame_pc(fromleaf, prev)
|
||||
This is the default setting for INIT_PREV_FRAME. It just does what
|
||||
the default INIT_FRAME_PC does. Some machines will call it from
|
||||
INIT_PREV_FRAME (either at the beginning, the end, or in the middle).
|
||||
Some machines won't use it.
|
||||
This is the default setting for INIT_PREV_FRAME. It just does what
|
||||
the default INIT_FRAME_PC does. Some machines will call it from
|
||||
INIT_PREV_FRAME (either at the beginning, the end, or in the middle).
|
||||
Some machines won't use it.
|
||||
kingdon@cygnus.com, 13Apr93, 31Jan94, 14Dec94. */
|
||||
|
||||
#ifdef INIT_FRAME_PC_FIRST
|
||||
@@ -473,13 +474,13 @@ get_prev_frame (next_frame)
|
||||
#endif
|
||||
|
||||
#ifdef INIT_EXTRA_FRAME_INFO
|
||||
INIT_EXTRA_FRAME_INFO(fromleaf, prev);
|
||||
INIT_EXTRA_FRAME_INFO (fromleaf, prev);
|
||||
#endif
|
||||
|
||||
/* This entry is in the frame queue now, which is good since
|
||||
FRAME_SAVED_PC may use that queue to figure out its value
|
||||
(see tm-sparc.h). We want the pc saved in the inferior frame. */
|
||||
INIT_FRAME_PC(fromleaf, prev);
|
||||
INIT_FRAME_PC (fromleaf, prev);
|
||||
|
||||
/* If ->frame and ->pc are unchanged, we are in the process of getting
|
||||
ourselves into an infinite backtrace. Some architectures check this
|
||||
@@ -497,7 +498,7 @@ get_prev_frame (next_frame)
|
||||
}
|
||||
|
||||
find_pc_partial_function (prev->pc, &name,
|
||||
(CORE_ADDR *)NULL,(CORE_ADDR *)NULL);
|
||||
(CORE_ADDR *) NULL, (CORE_ADDR *) NULL);
|
||||
if (IN_SIGTRAMP (prev->pc, name))
|
||||
prev->signal_handler_caller = 1;
|
||||
|
||||
@@ -524,7 +525,7 @@ get_frame_saved_regs (frame, saved_regs_addr)
|
||||
{
|
||||
if (frame->saved_regs == NULL)
|
||||
{
|
||||
frame->saved_regs = (CORE_ADDR*)
|
||||
frame->saved_regs = (CORE_ADDR *)
|
||||
frame_obstack_alloc (SIZEOF_FRAME_SAVED_REGS);
|
||||
}
|
||||
if (saved_regs_addr == NULL)
|
||||
@@ -618,13 +619,13 @@ blockvector_for_pc_sect (pc, section, pindex, symtab)
|
||||
struct sec *section;
|
||||
int *pindex;
|
||||
struct symtab *symtab;
|
||||
|
||||
|
||||
{
|
||||
register struct block *b;
|
||||
register int bot, top, half;
|
||||
struct blockvector *bl;
|
||||
|
||||
if (symtab == 0) /* if no symtab specified by caller */
|
||||
if (symtab == 0) /* if no symtab specified by caller */
|
||||
{
|
||||
/* First search all symtabs for one whose file contains our pc */
|
||||
if ((symtab = find_pc_sect_symtab (pc, section)) == 0)
|
||||
@@ -733,19 +734,19 @@ find_pc_function (pc)
|
||||
/* These variables are used to cache the most recent result
|
||||
* of find_pc_partial_function. */
|
||||
|
||||
static CORE_ADDR cache_pc_function_low = 0;
|
||||
static CORE_ADDR cache_pc_function_high = 0;
|
||||
static char *cache_pc_function_name = 0;
|
||||
static CORE_ADDR cache_pc_function_low = 0;
|
||||
static CORE_ADDR cache_pc_function_high = 0;
|
||||
static char *cache_pc_function_name = 0;
|
||||
static struct sec *cache_pc_function_section = NULL;
|
||||
|
||||
/* Clear cache, e.g. when symbol table is discarded. */
|
||||
|
||||
void
|
||||
clear_pc_function_cache()
|
||||
clear_pc_function_cache ()
|
||||
{
|
||||
cache_pc_function_low = 0;
|
||||
cache_pc_function_high = 0;
|
||||
cache_pc_function_name = (char *)0;
|
||||
cache_pc_function_name = (char *) 0;
|
||||
cache_pc_function_section = NULL;
|
||||
}
|
||||
|
||||
@@ -762,23 +763,23 @@ clear_pc_function_cache()
|
||||
|
||||
int
|
||||
find_pc_sect_partial_function (pc, section, name, address, endaddr)
|
||||
CORE_ADDR pc;
|
||||
asection *section;
|
||||
char **name;
|
||||
CORE_ADDR pc;
|
||||
asection *section;
|
||||
char **name;
|
||||
CORE_ADDR *address;
|
||||
CORE_ADDR *endaddr;
|
||||
{
|
||||
struct partial_symtab *pst;
|
||||
struct symbol *f;
|
||||
struct symbol *f;
|
||||
struct minimal_symbol *msymbol;
|
||||
struct partial_symbol *psb;
|
||||
struct obj_section *osect;
|
||||
struct obj_section *osect;
|
||||
int i;
|
||||
CORE_ADDR mapped_pc;
|
||||
|
||||
mapped_pc = overlay_mapped_address (pc, section);
|
||||
|
||||
if (mapped_pc >= cache_pc_function_low &&
|
||||
if (mapped_pc >= cache_pc_function_low &&
|
||||
mapped_pc < cache_pc_function_high &&
|
||||
section == cache_pc_function_section)
|
||||
goto return_cached_value;
|
||||
@@ -786,11 +787,11 @@ find_pc_sect_partial_function (pc, section, name, address, endaddr)
|
||||
/* If sigtramp is in the u area, it counts as a function (especially
|
||||
important for step_1). */
|
||||
#if defined SIGTRAMP_START
|
||||
if (IN_SIGTRAMP (mapped_pc, (char *)NULL))
|
||||
if (IN_SIGTRAMP (mapped_pc, (char *) NULL))
|
||||
{
|
||||
cache_pc_function_low = SIGTRAMP_START (mapped_pc);
|
||||
cache_pc_function_high = SIGTRAMP_END (mapped_pc);
|
||||
cache_pc_function_name = "<sigtramp>";
|
||||
cache_pc_function_low = SIGTRAMP_START (mapped_pc);
|
||||
cache_pc_function_high = SIGTRAMP_END (mapped_pc);
|
||||
cache_pc_function_name = "<sigtramp>";
|
||||
cache_pc_function_section = section;
|
||||
goto return_cached_value;
|
||||
}
|
||||
@@ -819,9 +820,9 @@ find_pc_sect_partial_function (pc, section, name, address, endaddr)
|
||||
|| (BLOCK_START (SYMBOL_BLOCK_VALUE (f))
|
||||
>= SYMBOL_VALUE_ADDRESS (msymbol))))
|
||||
{
|
||||
cache_pc_function_low = BLOCK_START (SYMBOL_BLOCK_VALUE (f));
|
||||
cache_pc_function_high = BLOCK_END (SYMBOL_BLOCK_VALUE (f));
|
||||
cache_pc_function_name = SYMBOL_NAME (f);
|
||||
cache_pc_function_low = BLOCK_START (SYMBOL_BLOCK_VALUE (f));
|
||||
cache_pc_function_high = BLOCK_END (SYMBOL_BLOCK_VALUE (f));
|
||||
cache_pc_function_name = SYMBOL_NAME (f);
|
||||
cache_pc_function_section = section;
|
||||
goto return_cached_value;
|
||||
}
|
||||
@@ -872,21 +873,21 @@ find_pc_sect_partial_function (pc, section, name, address, endaddr)
|
||||
return 0;
|
||||
}
|
||||
|
||||
cache_pc_function_low = SYMBOL_VALUE_ADDRESS (msymbol);
|
||||
cache_pc_function_name = SYMBOL_NAME (msymbol);
|
||||
cache_pc_function_low = SYMBOL_VALUE_ADDRESS (msymbol);
|
||||
cache_pc_function_name = SYMBOL_NAME (msymbol);
|
||||
cache_pc_function_section = section;
|
||||
|
||||
/* Use the lesser of the next minimal symbol in the same section, or
|
||||
the end of the section, as the end of the function. */
|
||||
|
||||
|
||||
/* Step over other symbols at this same address, and symbols in
|
||||
other sections, to find the next symbol in this section with
|
||||
a different address. */
|
||||
|
||||
for (i=1; SYMBOL_NAME (msymbol+i) != NULL; i++)
|
||||
for (i = 1; SYMBOL_NAME (msymbol + i) != NULL; i++)
|
||||
{
|
||||
if (SYMBOL_VALUE_ADDRESS (msymbol+i) != SYMBOL_VALUE_ADDRESS (msymbol)
|
||||
&& SYMBOL_BFD_SECTION (msymbol+i) == SYMBOL_BFD_SECTION (msymbol))
|
||||
if (SYMBOL_VALUE_ADDRESS (msymbol + i) != SYMBOL_VALUE_ADDRESS (msymbol)
|
||||
&& SYMBOL_BFD_SECTION (msymbol + i) == SYMBOL_BFD_SECTION (msymbol))
|
||||
break;
|
||||
}
|
||||
|
||||
@@ -898,33 +899,33 @@ find_pc_sect_partial_function (pc, section, name, address, endaddr)
|
||||
So the end address is the end of the section. */
|
||||
cache_pc_function_high = osect->endaddr;
|
||||
|
||||
return_cached_value:
|
||||
return_cached_value:
|
||||
|
||||
if (address)
|
||||
{
|
||||
if (pc_in_unmapped_range (pc, section))
|
||||
*address = overlay_unmapped_address (cache_pc_function_low, section);
|
||||
*address = overlay_unmapped_address (cache_pc_function_low, section);
|
||||
else
|
||||
*address = cache_pc_function_low;
|
||||
*address = cache_pc_function_low;
|
||||
}
|
||||
|
||||
|
||||
if (name)
|
||||
*name = cache_pc_function_name;
|
||||
|
||||
if (endaddr)
|
||||
{
|
||||
if (pc_in_unmapped_range (pc, section))
|
||||
{
|
||||
{
|
||||
/* Because the high address is actually beyond the end of
|
||||
the function (and therefore possibly beyond the end of
|
||||
the overlay), we must actually convert (high - 1)
|
||||
and then add one to that. */
|
||||
|
||||
*endaddr = 1 + overlay_unmapped_address (cache_pc_function_high - 1,
|
||||
*endaddr = 1 + overlay_unmapped_address (cache_pc_function_high - 1,
|
||||
section);
|
||||
}
|
||||
}
|
||||
else
|
||||
*endaddr = cache_pc_function_high;
|
||||
*endaddr = cache_pc_function_high;
|
||||
}
|
||||
|
||||
return 1;
|
||||
@@ -934,12 +935,12 @@ find_pc_sect_partial_function (pc, section, name, address, endaddr)
|
||||
|
||||
int
|
||||
find_pc_partial_function (pc, name, address, endaddr)
|
||||
CORE_ADDR pc;
|
||||
char **name;
|
||||
CORE_ADDR pc;
|
||||
char **name;
|
||||
CORE_ADDR *address;
|
||||
CORE_ADDR *endaddr;
|
||||
{
|
||||
asection *section;
|
||||
asection *section;
|
||||
|
||||
section = find_pc_overlay (pc);
|
||||
return find_pc_sect_partial_function (pc, section, name, address, endaddr);
|
||||
@@ -982,7 +983,7 @@ find_frame_addr_in_frame_chain (frame_addr)
|
||||
{
|
||||
struct frame_info *frame = NULL;
|
||||
|
||||
if (frame_addr == (CORE_ADDR)0)
|
||||
if (frame_addr == (CORE_ADDR) 0)
|
||||
return NULL;
|
||||
|
||||
while (1)
|
||||
@@ -1015,7 +1016,7 @@ sigtramp_saved_pc (frame)
|
||||
ptrbytes);
|
||||
else
|
||||
sigcontext_addr = read_memory_integer (read_register (SP_REGNUM)
|
||||
+ sigcontext_offs,
|
||||
+ sigcontext_offs,
|
||||
ptrbytes);
|
||||
|
||||
/* Don't cause a memory_error when accessing sigcontext in case the stack
|
||||
@@ -1131,12 +1132,12 @@ static struct dummy_frame *dummy_frame_stack = NULL;
|
||||
Search the stack of dummy frames for one matching the given PC, FP and SP.
|
||||
This is the work-horse for pc_in_call_dummy and read_register_dummy */
|
||||
|
||||
char *
|
||||
char *
|
||||
generic_find_dummy_frame (pc, fp)
|
||||
CORE_ADDR pc;
|
||||
CORE_ADDR fp;
|
||||
{
|
||||
struct dummy_frame * dummyframe;
|
||||
struct dummy_frame *dummyframe;
|
||||
|
||||
if (pc != entry_point_address ())
|
||||
return 0;
|
||||
@@ -1179,7 +1180,7 @@ generic_read_register_dummy (pc, fp, regno)
|
||||
|
||||
if (dummy_regs)
|
||||
return extract_address (&dummy_regs[REGISTER_BYTE (regno)],
|
||||
REGISTER_RAW_SIZE(regno));
|
||||
REGISTER_RAW_SIZE (regno));
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
@@ -1216,10 +1217,10 @@ generic_push_dummy_frame ()
|
||||
dummy_frame = xmalloc (sizeof (struct dummy_frame));
|
||||
dummy_frame->registers = xmalloc (REGISTER_BYTES);
|
||||
|
||||
dummy_frame->pc = read_register (PC_REGNUM);
|
||||
dummy_frame->sp = read_register (SP_REGNUM);
|
||||
dummy_frame->top = dummy_frame->sp;
|
||||
dummy_frame->fp = fp;
|
||||
dummy_frame->pc = read_register (PC_REGNUM);
|
||||
dummy_frame->sp = read_register (SP_REGNUM);
|
||||
dummy_frame->top = dummy_frame->sp;
|
||||
dummy_frame->fp = fp;
|
||||
read_register_bytes (0, dummy_frame->registers, REGISTER_BYTES);
|
||||
dummy_frame->next = dummy_frame_stack;
|
||||
dummy_frame_stack = dummy_frame;
|
||||
@@ -1238,10 +1239,10 @@ generic_save_dummy_frame_tos (sp)
|
||||
|
||||
void
|
||||
generic_pop_current_frame (pop)
|
||||
void (*pop) PARAMS ((struct frame_info *frame));
|
||||
void (*pop) PARAMS ((struct frame_info * frame));
|
||||
{
|
||||
struct frame_info *frame = get_current_frame ();
|
||||
if (PC_IN_CALL_DUMMY(frame->pc, frame->frame, frame->frame))
|
||||
if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
|
||||
generic_pop_dummy_frame ();
|
||||
else
|
||||
pop (frame);
|
||||
@@ -1271,20 +1272,20 @@ generic_pop_dummy_frame ()
|
||||
/* Function: frame_chain_valid
|
||||
Returns true for a user frame or a call_function_by_hand dummy frame,
|
||||
and false for the CRT0 start-up frame. Purpose is to terminate backtrace */
|
||||
|
||||
|
||||
int
|
||||
generic_frame_chain_valid (fp, fi)
|
||||
CORE_ADDR fp;
|
||||
struct frame_info *fi;
|
||||
{
|
||||
if (PC_IN_CALL_DUMMY(FRAME_SAVED_PC(fi), fp, fp))
|
||||
return 1; /* don't prune CALL_DUMMY frames */
|
||||
else /* fall back to default algorithm (see frame.h) */
|
||||
if (PC_IN_CALL_DUMMY (FRAME_SAVED_PC (fi), fp, fp))
|
||||
return 1; /* don't prune CALL_DUMMY frames */
|
||||
else /* fall back to default algorithm (see frame.h) */
|
||||
return (fp != 0
|
||||
&& (INNER_THAN (fi->frame, fp) || fi->frame == fp)
|
||||
&& !inside_entry_file (FRAME_SAVED_PC(fi)));
|
||||
&& !inside_entry_file (FRAME_SAVED_PC (fi)));
|
||||
}
|
||||
|
||||
|
||||
/* Function: fix_call_dummy
|
||||
Stub function. Generic dumy frames typically do not need to fix
|
||||
the frame being created */
|
||||
@@ -1342,7 +1343,7 @@ generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
|
||||
if (optimized != NULL)
|
||||
*optimized = 0;
|
||||
|
||||
if (addrp) /* default assumption: not found in memory */
|
||||
if (addrp) /* default assumption: not found in memory */
|
||||
*addrp = 0;
|
||||
|
||||
/* Note: since the current frame's registers could only have been
|
||||
@@ -1354,34 +1355,34 @@ generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
|
||||
{
|
||||
if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
|
||||
{
|
||||
if (lval) /* found it in a CALL_DUMMY frame */
|
||||
if (lval) /* found it in a CALL_DUMMY frame */
|
||||
*lval = not_lval;
|
||||
if (raw_buffer)
|
||||
memcpy (raw_buffer,
|
||||
generic_find_dummy_frame (frame->pc, frame->frame) +
|
||||
memcpy (raw_buffer,
|
||||
generic_find_dummy_frame (frame->pc, frame->frame) +
|
||||
REGISTER_BYTE (regnum),
|
||||
REGISTER_RAW_SIZE (regnum));
|
||||
return;
|
||||
return;
|
||||
}
|
||||
|
||||
FRAME_INIT_SAVED_REGS (frame);
|
||||
if (frame->saved_regs != NULL
|
||||
&& frame->saved_regs[regnum] != 0)
|
||||
{
|
||||
if (lval) /* found it saved on the stack */
|
||||
if (lval) /* found it saved on the stack */
|
||||
*lval = lval_memory;
|
||||
if (regnum == SP_REGNUM)
|
||||
{
|
||||
if (raw_buffer) /* SP register treated specially */
|
||||
store_address (raw_buffer, REGISTER_RAW_SIZE (regnum),
|
||||
if (raw_buffer) /* SP register treated specially */
|
||||
store_address (raw_buffer, REGISTER_RAW_SIZE (regnum),
|
||||
frame->saved_regs[regnum]);
|
||||
}
|
||||
else
|
||||
{
|
||||
if (addrp) /* any other register */
|
||||
if (addrp) /* any other register */
|
||||
*addrp = frame->saved_regs[regnum];
|
||||
if (raw_buffer)
|
||||
read_memory (frame->saved_regs[regnum], raw_buffer,
|
||||
read_memory (frame->saved_regs[regnum], raw_buffer,
|
||||
REGISTER_RAW_SIZE (regnum));
|
||||
}
|
||||
return;
|
||||
@@ -1391,7 +1392,7 @@ generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
|
||||
/* If we get thru the loop to this point, it means the register was
|
||||
not saved in any frame. Return the actual live-register value. */
|
||||
|
||||
if (lval) /* found it in a live register */
|
||||
if (lval) /* found it in a live register */
|
||||
*lval = lval_register;
|
||||
if (addrp)
|
||||
*addrp = REGISTER_BYTE (regnum);
|
||||
|
||||
Reference in New Issue
Block a user