/* Disassemble support for GDB.
- Copyright (C) 2000-2015 Free Software Foundation, Inc.
+ Copyright (C) 2000-2016 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbcore.h"
#include "dis-asm.h"
#include "source.h"
+#include <algorithm>
/* Disassemble functions.
FIXME: We should get rid of all the duplicate code in gdb that does
xfree, xcalloc, xfree);
}
-/* Add DLE to TABLE.
- Returns 1 if added, 0 if already present. */
+/* Add a new dis_line_entry containing SYMTAB and LINE to TABLE. */
static void
-maybe_add_dis_line_entry (htab_t table, struct symtab *symtab, int line)
+add_dis_line_entry (htab_t table, struct symtab *symtab, int line)
{
void **slot;
struct dis_line_entry dle, *dlep;
/* Like memory_error with slightly different parameters. */
static void
-dis_asm_memory_error (int status, bfd_vma memaddr,
+dis_asm_memory_error (int err, bfd_vma memaddr,
struct disassemble_info *info)
{
- memory_error (status, memaddr);
+ memory_error (TARGET_XFER_E_IO, memaddr);
}
/* Like print_address with slightly different parameters. */
return val;
}
-static int
-dump_insns (struct gdbarch *gdbarch, struct ui_out *uiout,
- struct disassemble_info * di,
- CORE_ADDR low, CORE_ADDR high,
- int how_many, int flags, struct ui_file *stb,
- CORE_ADDR *end_pc)
-{
- int num_displayed = 0;
- CORE_ADDR pc;
+/* See disasm.h. */
+int
+gdb_pretty_print_insn (struct gdbarch *gdbarch, struct ui_out *uiout,
+ struct disassemble_info * di,
+ const struct disasm_insn *insn, int flags,
+ struct ui_file *stb)
+{
/* parts of the symbolic representation of the address */
int unmapped;
int offset;
int line;
+ int size;
struct cleanup *ui_out_chain;
+ char *filename = NULL;
+ char *name = NULL;
+ CORE_ADDR pc;
- for (pc = low; pc < high;)
+ ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
+ pc = insn->addr;
+
+ if (insn->number != 0)
{
- char *filename = NULL;
- char *name = NULL;
+ ui_out_field_fmt (uiout, "insn-number", "%u", insn->number);
+ ui_out_text (uiout, "\t");
+ }
- QUIT;
- if (how_many >= 0)
+ if ((flags & DISASSEMBLY_SPECULATIVE) != 0)
+ {
+ if (insn->is_speculative)
{
- if (num_displayed >= how_many)
- break;
+ ui_out_field_string (uiout, "is-speculative", "?");
+
+ /* The speculative execution indication overwrites the first
+ character of the PC prefix.
+ We assume a PC prefix length of 3 characters. */
+ if ((flags & DISASSEMBLY_OMIT_PC) == 0)
+ ui_out_text (uiout, pc_prefix (pc) + 1);
else
- num_displayed++;
+ ui_out_text (uiout, " ");
}
- ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
-
- if ((flags & DISASSEMBLY_OMIT_PC) == 0)
+ else if ((flags & DISASSEMBLY_OMIT_PC) == 0)
ui_out_text (uiout, pc_prefix (pc));
- ui_out_field_core_addr (uiout, "address", gdbarch, pc);
+ else
+ ui_out_text (uiout, " ");
+ }
+ else if ((flags & DISASSEMBLY_OMIT_PC) == 0)
+ ui_out_text (uiout, pc_prefix (pc));
+ ui_out_field_core_addr (uiout, "address", gdbarch, pc);
+
+ if (!build_address_symbolic (gdbarch, 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, " <");
+ if ((flags & DISASSEMBLY_OMIT_FNAME) == 0)
+ ui_out_field_string (uiout, "func-name", name);
+ ui_out_text (uiout, "+");
+ ui_out_field_int (uiout, "offset", offset);
+ ui_out_text (uiout, ">:\t");
+ }
+ else
+ ui_out_text (uiout, ":\t");
- if (!build_address_symbolic (gdbarch, pc, 0, &name, &offset, &filename,
- &line, &unmapped))
+ if (filename != NULL)
+ xfree (filename);
+ if (name != NULL)
+ xfree (name);
+
+ ui_file_rewind (stb);
+ if (flags & DISASSEMBLY_RAW_INSN)
+ {
+ CORE_ADDR end_pc;
+ bfd_byte data;
+ int err;
+ const char *spacer = "";
+
+ /* Build the opcodes using a temporary stream so we can
+ write them out in a single go for the MI. */
+ struct ui_file *opcode_stream = mem_fileopen ();
+ struct cleanup *cleanups =
+ make_cleanup_ui_file_delete (opcode_stream);
+
+ size = gdbarch_print_insn (gdbarch, pc, di);
+ end_pc = pc + size;
+
+ for (;pc < end_pc; ++pc)
{
- /* We don't care now about line, filename and
- unmapped. But we might in the future. */
- ui_out_text (uiout, " <");
- if ((flags & DISASSEMBLY_OMIT_FNAME) == 0)
- ui_out_field_string (uiout, "func-name", name);
- ui_out_text (uiout, "+");
- ui_out_field_int (uiout, "offset", offset);
- ui_out_text (uiout, ">:\t");
+ err = (*di->read_memory_func) (pc, &data, 1, di);
+ if (err != 0)
+ (*di->memory_error_func) (err, pc, di);
+ fprintf_filtered (opcode_stream, "%s%02x",
+ spacer, (unsigned) data);
+ spacer = " ";
}
- else
- ui_out_text (uiout, ":\t");
-
- if (filename != NULL)
- xfree (filename);
- if (name != NULL)
- xfree (name);
-
- ui_file_rewind (stb);
- if (flags & DISASSEMBLY_RAW_INSN)
- {
- CORE_ADDR old_pc = pc;
- bfd_byte data;
- int status;
- const char *spacer = "";
-
- /* Build the opcodes using a temporary stream so we can
- write them out in a single go for the MI. */
- struct ui_file *opcode_stream = mem_fileopen ();
- struct cleanup *cleanups =
- make_cleanup_ui_file_delete (opcode_stream);
-
- pc += gdbarch_print_insn (gdbarch, pc, di);
- for (;old_pc < pc; old_pc++)
- {
- status = (*di->read_memory_func) (old_pc, &data, 1, di);
- if (status != 0)
- (*di->memory_error_func) (status, old_pc, di);
- fprintf_filtered (opcode_stream, "%s%02x",
- spacer, (unsigned) data);
- spacer = " ";
- }
- ui_out_field_stream (uiout, "opcodes", opcode_stream);
- ui_out_text (uiout, "\t");
-
- do_cleanups (cleanups);
- }
- else
- pc += gdbarch_print_insn (gdbarch, pc, di);
- ui_out_field_stream (uiout, "inst", stb);
- ui_file_rewind (stb);
- do_cleanups (ui_out_chain);
- ui_out_text (uiout, "\n");
+
+ ui_out_field_stream (uiout, "opcodes", opcode_stream);
+ ui_out_text (uiout, "\t");
+
+ do_cleanups (cleanups);
+ }
+ else
+ size = gdbarch_print_insn (gdbarch, pc, di);
+
+ ui_out_field_stream (uiout, "inst", stb);
+ ui_file_rewind (stb);
+ do_cleanups (ui_out_chain);
+ ui_out_text (uiout, "\n");
+
+ return size;
+}
+
+static int
+dump_insns (struct gdbarch *gdbarch, struct ui_out *uiout,
+ struct disassemble_info * di,
+ CORE_ADDR low, CORE_ADDR high,
+ int how_many, int flags, struct ui_file *stb,
+ CORE_ADDR *end_pc)
+{
+ struct disasm_insn insn;
+ int num_displayed = 0;
+
+ memset (&insn, 0, sizeof (insn));
+ insn.addr = low;
+
+ while (insn.addr < high && (how_many < 0 || num_displayed < how_many))
+ {
+ int size;
+
+ size = gdb_pretty_print_insn (gdbarch, uiout, di, &insn, flags, stb);
+ if (size <= 0)
+ break;
+
+ ++num_displayed;
+ insn.addr += size;
+
+ /* Allow user to bail out with ^C. */
+ QUIT;
}
if (end_pc != NULL)
- *end_pc = pc;
+ *end_pc = insn.addr;
+
return num_displayed;
}
int out_of_order = 0;
int next_line = 0;
int num_displayed = 0;
- enum print_source_lines_flags psl_flags = 0;
+ print_source_lines_flags psl_flags = 0;
struct cleanup *ui_out_chain;
struct cleanup *ui_out_tuple_chain = make_cleanup (null_cleanup, 0);
struct cleanup *ui_out_list_chain = make_cleanup (null_cleanup, 0);
CORE_ADDR low, CORE_ADDR high,
int how_many, int flags, struct ui_file *stb)
{
- int newlines = 0;
const struct linetable_entry *le, *first_le;
- struct symtab_and_line sal;
int i, nlines;
- int out_of_order = 0;
- int next_line = 0;
int num_displayed = 0;
- enum print_source_lines_flags psl_flags = 0;
+ print_source_lines_flags psl_flags = 0;
struct cleanup *cleanups;
struct cleanup *ui_out_chain;
struct cleanup *ui_out_tuple_chain;
pc += length;
if (sal.symtab != NULL)
- maybe_add_dis_line_entry (dis_line_table, sal.symtab, sal.line);
+ add_dis_line_entry (dis_line_table, sal.symtab, sal.line);
}
/* Second pass: print the disassembly.
while (pc < high)
{
- struct linetable_entry *le = NULL;
struct symtab_and_line sal;
CORE_ADDR end_pc;
int start_preceding_line_to_display = 0;
}
if (sal.end != 0)
- end_pc = min (sal.end, high);
+ end_pc = std::min (sal.end, high);
else
end_pc = pc + 1;
num_displayed += dump_insns (gdbarch, uiout, di, pc, end_pc,
CORE_ADDR low, CORE_ADDR high,
int how_many, int flags, struct ui_file *stb)
{
- int num_displayed = 0;
struct cleanup *ui_out_chain;
ui_out_chain = make_cleanup_ui_out_list_begin_end (uiout, "asm_insns");
- num_displayed = dump_insns (gdbarch, uiout, di, low, high, how_many,
- flags, stb, NULL);
+ dump_insns (gdbarch, uiout, di, low, high, how_many, flags, stb, NULL);
do_cleanups (ui_out_chain);
}
struct cleanup *cleanups = make_cleanup_ui_file_delete (stb);
struct disassemble_info di = gdb_disassemble_info (gdbarch, stb);
struct symtab *symtab;
- struct linetable_entry *le = NULL;
int nlines = -1;
/* Assume symtab is valid for whole PC range. */