#include "value.h"
#include "mi-cmds.h"
#include "mi-getopt.h"
-#include "ui-out.h"
#include "gdb_string.h"
-
-/* 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;
-}
-
-static int
-dump_insns (disassemble_info * di, CORE_ADDR low, CORE_ADDR high,
- int how_many, struct ui_stream *stb)
-{
- int num_displayed = 0;
- CORE_ADDR pc;
-
- /* parts of the symbolic representation of the address */
- int unmapped;
- char *filename = NULL;
- char *name = NULL;
- int offset;
- int line;
-
- 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_text (uiout, " <");
- ui_out_field_string (uiout, "func-name", name);
- ui_out_text (uiout, "+");
- ui_out_field_int (uiout, "offset", offset);
- ui_out_text (uiout, ">:\t");
- }
- if (filename != NULL)
- xfree (filename);
- if (name != NULL)
- xfree (name);
-
- ui_file_rewind (stb->stream);
- pc += TARGET_PRINT_INSN (pc, di);
- ui_out_field_stream (uiout, "inst", stb);
- ui_file_rewind (stb->stream);
- ui_out_tuple_end (uiout);
- ui_out_text (uiout, "\n");
- }
- return num_displayed;
-}
-
-/* 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. */
-static void
-do_mixed_source_and_assembly (struct disassemble_info *di, int nlines,
- struct linetable_entry *le,
- CORE_ADDR low, CORE_ADDR high,
- struct symtab *symtab,
- int how_many, struct ui_stream *stb)
-{
- int newlines = 0;
- struct dis_line_entry *mle;
- struct symtab_and_line sal;
- int i;
- int out_of_order = 0;
- int next_line = 0;
- CORE_ADDR pc;
- int num_displayed = 0;
-
- mle = (struct dis_line_entry *) alloca (nlines
- * sizeof (struct dis_line_entry));
-
- /* 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. */
-
- 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. */
-
- ui_out_list_begin (uiout, "asm_insns");
-
- 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, next_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");
- /* Don't close the list if the lines are not in order. */
- if (i < (newlines - 1) && mle[i + 1].line <= mle[i].line)
- close_list = 0;
- }
-
- num_displayed += dump_insns (di, mle[i].start_pc, mle[i].end_pc,
- how_many, stb);
- if (close_list)
- {
- ui_out_list_end (uiout);
- ui_out_tuple_end (uiout);
- ui_out_text (uiout, "\n");
- close_list = 0;
- }
- if (how_many >= 0)
- if (num_displayed >= how_many)
- break;
- }
- ui_out_list_end (uiout);
-}
-
-
-static void
-do_assembly_only (disassemble_info * di, CORE_ADDR low,
- CORE_ADDR high, int how_many, struct ui_stream *stb)
-{
- int num_displayed = 0;
-
- ui_out_list_begin (uiout, "asm_insns");
-
- num_displayed = dump_insns (di, low, high, how_many, stb);
-
- ui_out_list_end (uiout);
-}
-
-enum mi_cmd_result
-do_disassembly (char *file_string,
- int line_num,
- int mixed_source_and_assembly,
- int how_many, CORE_ADDR low, CORE_ADDR high)
-{
- static disassemble_info di;
- static int di_initialized;
- /* To collect the instruction outputted from opcodes. */
- static struct ui_stream *stb = NULL;
- struct symtab *symtab = NULL;
- struct linetable_entry *le = NULL;
- int nlines = -1;
-
- 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;
- }
-
- 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;
-
- /* Assume symtab is valid for whole PC range */
- symtab = find_pc_symtab (low);
-
- if (symtab != NULL && symtab->linetable != NULL)
- {
- /* Convert the linetable to a bunch of my_line_entry's. */
- le = symtab->linetable->item;
- nlines = symtab->linetable->nitems;
- }
-
- if (!mixed_source_and_assembly || nlines <= 0
- || symtab == NULL || symtab->linetable == NULL)
- do_assembly_only (&di, low, high, how_many, stb);
-
- else if (mixed_source_and_assembly)
- do_mixed_source_and_assembly (&di, nlines, le, low,
- high, symtab, how_many, stb);
-
- gdb_flush (gdb_stdout);
-
- return MI_CMD_DONE;
-}
+#include "ui-out.h"
+#include "disasm.h"
/* The arguments to be passed on the command line and parsed here are:
error ("mi_cmd_disassemble: No function contains specified address");
}
- retval = do_disassembly (file_string,
- line_num,
- mixed_source_and_assembly, how_many, low, high);
- return retval;
+ 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