/* MI Command Set - disassemble commands.
- Copyright 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
Contributed by Cygnus Solutions (a Red Hat company).
This file is part of GDB.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "target.h"
#include "value.h"
#include "mi-cmds.h"
#include "mi-getopt.h"
+#include "gdb_string.h"
#include "ui-out.h"
-
-static int gdb_dis_asm_read_memory (bfd_vma memaddr, bfd_byte * myaddr, unsigned int len,
- disassemble_info * info);
-static int compare_lines (const PTR mle1p, const PTR mle2p);
-
-/* Disassemble functions. FIXME: these do not really belong here. We
- should get rid of all the duplicate code in gdb that does the same
- thing: disassemble_command() and the gdbtk variation. */
-
-/* This Structure is used in mi_cmd_disassemble.
- We need a different sort of line table from the normal one cuz we can't
- depend upon implicit line-end pc's for lines to do the
- reordering in this function. */
-
-struct dis_line_entry
- {
- int line;
- CORE_ADDR start_pc;
- CORE_ADDR end_pc;
- };
-
-/* This variable determines where memory used for disassembly is read from. */
-int gdb_disassemble_from_exec = -1;
-
-/* This is the memory_read_func for gdb_disassemble when we are
- disassembling from the exec file. */
-static int
-gdb_dis_asm_read_memory (bfd_vma memaddr, bfd_byte * myaddr,
- unsigned int len, disassemble_info * info)
-{
- extern struct target_ops exec_ops;
- int res;
-
- errno = 0;
- res = xfer_memory (memaddr, myaddr, len, 0, 0, &exec_ops);
-
- if (res == len)
- return 0;
- else if (errno == 0)
- return EIO;
- else
- return errno;
-}
-
-static int
-compare_lines (const PTR mle1p, const PTR mle2p)
-{
- struct dis_line_entry *mle1, *mle2;
- int val;
-
- mle1 = (struct dis_line_entry *) mle1p;
- mle2 = (struct dis_line_entry *) mle2p;
-
- val = mle1->line - mle2->line;
-
- if (val != 0)
- return val;
-
- return mle1->start_pc - mle2->start_pc;
-}
+#include "disasm.h"
/* The arguments to be passed on the command line and parsed here are:
MODE: 0 or 1 for disassembly only, or mixed source and disassembly,
respectively. */
-
enum mi_cmd_result
mi_cmd_disassemble (char *command, char **argv, int argc)
{
- CORE_ADDR pc;
+ enum mi_cmd_result retval;
CORE_ADDR start;
int mixed_source_and_assembly;
- int num_displayed;
- static disassemble_info di;
- static int di_initialized;
-
struct symtab *s;
- /* To collect the instruction outputted from opcodes. */
- static struct ui_stream *stb = NULL;
-
- /* parts of the symbolic representation of the address */
- int line;
- int offset;
- int unmapped;
- char *filename = NULL;
- char *name = NULL;
-
/* Which options have we processed ... */
int file_seen = 0;
int line_seen = 0;
int optind = 0;
char *optarg;
enum opt
- {
- FILE_OPT, LINE_OPT, NUM_OPT, START_OPT, END_OPT
- };
- static struct mi_opt opts[] =
{
+ FILE_OPT, LINE_OPT, NUM_OPT, START_OPT, END_OPT
+ };
+ static struct mi_opt opts[] = {
{"f", FILE_OPT, 1},
{"l", LINE_OPT, 1},
{"n", NUM_OPT, 1},
{"s", START_OPT, 1},
{"e", END_OPT, 1},
- 0
+ { 0, 0, 0 }
};
/* Get the options with their arguments. Keep track of what we
if (!((line_seen && file_seen && num_seen && !start_seen && !end_seen)
|| (line_seen && file_seen && !num_seen && !start_seen && !end_seen)
- || (!line_seen && !file_seen && !num_seen && start_seen && end_seen)))
- error ("mi_cmd_disassemble: Usage: ( [-f filename -l linenum [-n howmany]] | [-s startaddr -e endaddr]) [--] mixed_mode.");
+ || (!line_seen && !file_seen && !num_seen && start_seen && end_seen)))
+ error
+ ("mi_cmd_disassemble: Usage: ( [-f filename -l linenum [-n howmany]] | [-s startaddr -e endaddr]) [--] mixed_mode.");
if (argc != 1)
- error ("mi_cmd_disassemble: Usage: [-f filename -l linenum [-n howmany]] [-s startaddr -e endaddr] [--] mixed_mode.");
+ error
+ ("mi_cmd_disassemble: Usage: [-f filename -l linenum [-n howmany]] [-s startaddr -e endaddr] [--] mixed_mode.");
mixed_source_and_assembly = atoi (argv[0]);
if ((mixed_source_and_assembly != 0) && (mixed_source_and_assembly != 1))
- error ("mi_cmd_disassemble: Mixed_mode argument must be 0 or 1.");
+ error (_("mi_cmd_disassemble: Mixed_mode argument must be 0 or 1."));
+
/* We must get the function beginning and end where line_num is
contained. */
{
s = lookup_symtab (file_string);
if (s == NULL)
- error ("mi_cmd_disassemble: Invalid filename.");
+ error (_("mi_cmd_disassemble: Invalid filename."));
if (!find_line_pc (s, line_num, &start))
- error ("mi_cmd_disassemble: Invalid line number");
+ error (_("mi_cmd_disassemble: Invalid line number"));
if (find_pc_partial_function (start, NULL, &low, &high) == 0)
- error ("mi_cmd_disassemble: No function contains specified address");
- }
-
- if (!di_initialized)
- {
- /* We don't add a cleanup for this, because the allocation of
- the stream is done once only for each gdb run, and we need to
- keep it around until the end. Hopefully there won't be any
- errors in the init code below, that make this function bail
- out. */
- stb = ui_out_stream_new (uiout);
- INIT_DISASSEMBLE_INFO_NO_ARCH (di, stb->stream,
- (fprintf_ftype) fprintf_unfiltered);
- di.flavour = bfd_target_unknown_flavour;
- di.memory_error_func = dis_asm_memory_error;
- di.print_address_func = dis_asm_print_address;
- di_initialized = 1;
+ error (_("mi_cmd_disassemble: No function contains specified address"));
}
- di.mach = TARGET_PRINT_INSN_INFO->mach;
- if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
- di.endian = BFD_ENDIAN_BIG;
- else
- di.endian = BFD_ENDIAN_LITTLE;
-
- /* If gdb_disassemble_from_exec == -1, then we use the following heuristic to
- determine whether or not to do disassembly from target memory or from the
- exec file:
-
- If we're debugging a local process, read target memory, instead of the
- exec file. This makes disassembly of functions in shared libs work
- correctly. Also, read target memory if we are debugging native threads.
-
- Else, we're debugging a remote process, and should disassemble from the
- exec file for speed. However, this is no good if the target modifies its
- code (for relocation, or whatever).
- */
-
- if (gdb_disassemble_from_exec == -1)
- {
- if (strcmp (target_shortname, "child") == 0
- || strcmp (target_shortname, "procfs") == 0
- || strcmp (target_shortname, "vxprocess") == 0
- || strstr (target_shortname, "-threads") != NULL)
- gdb_disassemble_from_exec = 0; /* It's a child process, read inferior mem */
- else
- gdb_disassemble_from_exec = 1; /* It's remote, read the exec file */
- }
-
- if (gdb_disassemble_from_exec)
- di.read_memory_func = gdb_dis_asm_read_memory;
- else
- di.read_memory_func = dis_asm_read_memory;
-
- /* If just doing straight assembly, all we need to do is disassemble
- everything between low and high. If doing mixed source/assembly,
- we've got a totally different path to follow. */
-
- if (mixed_source_and_assembly)
- {
- /* Come here for mixed source/assembly */
- /* The idea here is to present a source-O-centric view of a
- function to the user. This means that things are presented
- in source order, with (possibly) out of order assembly
- immediately following. */
- struct symtab *symtab;
- struct linetable_entry *le;
- int nlines;
- int newlines;
- struct dis_line_entry *mle;
- struct symtab_and_line sal;
- int i;
- int out_of_order;
- int next_line;
-
- /* Assume symtab is valid for whole PC range */
- symtab = find_pc_symtab (low);
-
- if (!symtab || !symtab->linetable)
- goto assembly_only;
-
- /* First, convert the linetable to a bunch of my_line_entry's. */
-
- le = symtab->linetable->item;
- nlines = symtab->linetable->nitems;
-
- if (nlines <= 0)
- goto assembly_only;
-
- mle = (struct dis_line_entry *) alloca (nlines * sizeof (struct dis_line_entry));
-
- out_of_order = 0;
-
- /* Copy linetable entries for this function into our data
- structure, creating end_pc's and setting out_of_order as
- appropriate. */
-
- /* First, skip all the preceding functions. */
-
- for (i = 0; i < nlines - 1 && le[i].pc < low; i++);
-
- /* Now, copy all entries before the end of this function. */
-
- newlines = 0;
- for (; i < nlines - 1 && le[i].pc < high; i++)
- {
- if (le[i].line == le[i + 1].line
- && le[i].pc == le[i + 1].pc)
- continue; /* Ignore duplicates */
-
- /* Skip any end-of-function markers. */
- if (le[i].line == 0)
- continue;
-
- mle[newlines].line = le[i].line;
- if (le[i].line > le[i + 1].line)
- out_of_order = 1;
- mle[newlines].start_pc = le[i].pc;
- mle[newlines].end_pc = le[i + 1].pc;
- newlines++;
- }
-
- /* If we're on the last line, and it's part of the function,
- then we need to get the end pc in a special way. */
-
- if (i == nlines - 1
- && le[i].pc < high)
- {
- mle[newlines].line = le[i].line;
- mle[newlines].start_pc = le[i].pc;
- sal = find_pc_line (le[i].pc, 0);
- mle[newlines].end_pc = sal.end;
- newlines++;
- }
-
- /* Now, sort mle by line #s (and, then by addresses within
- lines). */
-
- if (out_of_order)
- qsort (mle, newlines, sizeof (struct dis_line_entry), compare_lines);
-
- /* Now, for each line entry, emit the specified lines (unless
- they have been emitted before), followed by the assembly code
- for that line. */
-
- next_line = 0; /* Force out first line */
- ui_out_list_begin (uiout, "asm_insns");
- num_displayed = 0;
- for (i = 0; i < newlines; i++)
- {
- int close_list = 1;
- /* Print out everything from next_line to the current line. */
- if (mle[i].line >= next_line)
- {
- if (next_line != 0)
- {
- /* Just one line to print. */
- if (next_line == mle[i].line)
- {
- ui_out_tuple_begin (uiout, "src_and_asm_line");
- print_source_lines (symtab, next_line, mle[i].line + 1, 0);
- }
- else
- {
- /* Several source lines w/o asm instructions associated. */
- for (; next_line < mle[i].line; next_line++)
- {
- ui_out_tuple_begin (uiout, "src_and_asm_line");
- print_source_lines (symtab, next_line, mle[i].line + 1, 0);
- ui_out_list_begin (uiout, "line_asm_insn");
- ui_out_list_end (uiout);
- ui_out_tuple_end (uiout);
- }
- /* Print the last line and leave list open for
- asm instructions to be added. */
- ui_out_tuple_begin (uiout, "src_and_asm_line");
- print_source_lines (symtab, next_line, mle[i].line + 1, 0);
- }
- }
- else
- {
- ui_out_tuple_begin (uiout, "src_and_asm_line");
- print_source_lines (symtab, mle[i].line, mle[i].line + 1, 0);
- }
-
- next_line = mle[i].line + 1;
- ui_out_list_begin (uiout, "line_asm_insn");
- if (i + 1 < newlines && mle[i + 1].line <= mle[i].line)
- close_list = 0;
- }
- for (pc = mle[i].start_pc; pc < mle[i].end_pc;)
- {
- QUIT;
- if (how_many >= 0)
- {
- if (num_displayed >= how_many)
- break;
- else
- num_displayed++;
- }
- ui_out_tuple_begin (uiout, NULL);
- ui_out_field_core_addr (uiout, "address", pc);
-
- if (!build_address_symbolic (pc, 0, &name, &offset, &filename, &line, &unmapped))
- {
- /* We don't care now about line, filename and
- unmapped, but we might in the future. */
- ui_out_field_string (uiout, "func-name", name);
- ui_out_field_int (uiout, "offset", offset);
- }
- if (filename != NULL)
- xfree (filename);
- if (name != NULL)
- xfree (name);
-
- ui_file_rewind (stb->stream);
- pc += (*tm_print_insn) (pc, &di);
- ui_out_field_stream (uiout, "inst", stb);
- ui_file_rewind (stb->stream);
- ui_out_tuple_end (uiout);
- }
- if (close_list)
- {
- ui_out_list_end (uiout);
- ui_out_tuple_end (uiout);
- close_list = 0;
- }
- if (how_many >= 0)
- if (num_displayed >= how_many)
- break;
- }
- ui_out_list_end (uiout);
- }
- else
- {
- assembly_only:
- ui_out_list_begin (uiout, "asm_insns");
- num_displayed = 0;
- for (pc = low; pc < high;)
- {
- QUIT;
- if (how_many >= 0)
- {
- if (num_displayed >= how_many)
- break;
- else
- num_displayed++;
- }
- ui_out_tuple_begin (uiout, NULL);
- ui_out_field_core_addr (uiout, "address", pc);
-
- if (!build_address_symbolic (pc, 0, &name, &offset, &filename, &line, &unmapped))
- {
- /* We don't care now about line, filename and
- unmapped. But we might in the future. */
- ui_out_field_string (uiout, "func-name", name);
- ui_out_field_int (uiout, "offset", offset);
- }
- if (filename != NULL)
- xfree (filename);
- if (name != NULL)
- xfree (name);
-
- ui_file_rewind (stb->stream);
- pc += (*tm_print_insn) (pc, &di);
- ui_out_field_stream (uiout, "inst", stb);
- ui_file_rewind (stb->stream);
- ui_out_tuple_end (uiout);
- }
- ui_out_list_end (uiout);
- }
- gdb_flush (gdb_stdout);
+ gdb_disassembly (uiout,
+ file_string,
+ line_num,
+ mixed_source_and_assembly, how_many, low, high);
return MI_CMD_DONE;
}
projects / deliverable / binutils-gdb.git / blobdiff