/* Wrapper of target_read_code. */
int
-gdb_disassembler::dis_asm_read_memory (bfd_vma memaddr, gdb_byte *myaddr,
- unsigned int len,
- struct disassemble_info *info)
+gdb_disassembler_memory_reader::dis_asm_read_memory
+ (bfd_vma memaddr, gdb_byte *myaddr, unsigned int len,
+ struct disassemble_info *info)
{
return target_read_code (memaddr, myaddr, len);
}
/* Format disassembler output to STREAM. */
int
-gdb_disassembler::dis_asm_fprintf (void *stream, const char *format, ...)
+gdb_printing_disassembler::fprintf_func (void *stream,
+ const char *format, ...)
{
va_list args;
va_start (args, format);
- vfprintf_filtered ((struct ui_file *) stream, format, args);
+ gdb_vprintf ((struct ui_file *) stream, format, args);
+ va_end (args);
+ /* Something non -ve. */
+ return 0;
+}
+
+/* See disasm.h. */
+
+int
+gdb_printing_disassembler::fprintf_styled_func (void *stream,
+ enum disassembler_style style,
+ const char *format, ...)
+{
+ va_list args;
+
+ va_start (args, format);
+ gdb_vprintf ((struct ui_file *) stream, format, args);
va_end (args);
/* Something non -ve. */
return 0;
{
if (mle1.start_pc != mle2.start_pc)
val = mle1.start_pc < mle2.start_pc;
- else
+ else
val = mle1.line < mle2.line;
}
else
int num_displayed = 0;
print_source_lines_flags psl_flags = 0;
- gdb_assert (symtab != NULL && SYMTAB_LINETABLE (symtab) != NULL);
+ gdb_assert (symtab != nullptr && symtab->linetable () != nullptr);
- nlines = SYMTAB_LINETABLE (symtab)->nitems;
- le = SYMTAB_LINETABLE (symtab)->item;
+ nlines = symtab->linetable ()->nitems;
+ le = symtab->linetable ()->item;
if (flags & DISASSEMBLY_FILENAME)
psl_flags |= PRINT_SOURCE_LINES_FILENAME;
struct symtab *last_symtab;
int last_line;
- gdb_assert (main_symtab != NULL && SYMTAB_LINETABLE (main_symtab) != NULL);
+ gdb_assert (main_symtab != NULL && main_symtab->linetable () != NULL);
/* First pass: collect the list of all source files and lines.
We do this so that we can only print lines containing code once.
line after the opening brace. We still want to print this opening brace.
first_le is used to implement this. */
- nlines = SYMTAB_LINETABLE (main_symtab)->nitems;
- le = SYMTAB_LINETABLE (main_symtab)->item;
+ nlines = main_symtab->linetable ()->nitems;
+ le = main_symtab->linetable ()->item;
first_le = NULL;
/* Skip all the preceding functions. */
gdb_disassembler::gdb_disassembler (struct gdbarch *gdbarch,
struct ui_file *file,
- di_read_memory_ftype read_memory_func)
- : m_gdbarch (gdbarch)
+ read_memory_ftype func)
+ : gdb_printing_disassembler (gdbarch, &m_buffer, func,
+ dis_asm_memory_error, dis_asm_print_address),
+ m_buffer (!use_ext_lang_colorization_p && disassembler_styling
+ && file->can_emit_style_escape ()),
+ m_dest (file)
+{ /* Nothing. */ }
+
+/* See disasm.h. */
+
+gdb_disassemble_info::gdb_disassemble_info
+ (struct gdbarch *gdbarch, struct ui_file *stream,
+ read_memory_ftype read_memory_func, memory_error_ftype memory_error_func,
+ print_address_ftype print_address_func, fprintf_ftype fprintf_func,
+ fprintf_styled_ftype fprintf_styled_func)
+ : m_gdbarch (gdbarch)
{
- init_disassemble_info (&m_di, file, dis_asm_fprintf);
+ gdb_assert (fprintf_func != nullptr);
+ gdb_assert (fprintf_styled_func != nullptr);
+ init_disassemble_info (&m_di, stream, fprintf_func,
+ fprintf_styled_func);
m_di.flavour = bfd_target_unknown_flavour;
- m_di.memory_error_func = dis_asm_memory_error;
- m_di.print_address_func = dis_asm_print_address;
- /* NOTE: cagney/2003-04-28: The original code, from the old Insight
- disassembler had a local optimization here. By default it would
- access the executable file, instead of the target memory (there
- was a growing list of exceptions though). Unfortunately, the
- heuristic was flawed. Commands like "disassemble &variable"
- didn't work as they relied on the access going to the target.
- Further, it has been superseeded by trust-read-only-sections
- (although that should be superseeded by target_trust..._p()). */
- m_di.read_memory_func = read_memory_func;
+
+ /* The memory_error_func, print_address_func, and read_memory_func are
+ all initialized to a default (non-nullptr) value by the call to
+ init_disassemble_info above. If the user is overriding these fields
+ (by passing non-nullptr values) then do that now, otherwise, leave
+ these fields as the defaults. */
+ if (memory_error_func != nullptr)
+ m_di.memory_error_func = memory_error_func;
+ if (print_address_func != nullptr)
+ m_di.print_address_func = print_address_func;
+ if (read_memory_func != nullptr)
+ m_di.read_memory_func = read_memory_func;
+
m_di.arch = gdbarch_bfd_arch_info (gdbarch)->arch;
m_di.mach = gdbarch_bfd_arch_info (gdbarch)->mach;
m_di.endian = gdbarch_byte_order (gdbarch);
disassemble_init_for_target (&m_di);
}
-gdb_disassembler::~gdb_disassembler ()
+/* See disasm.h. */
+
+gdb_disassemble_info::~gdb_disassemble_info ()
{
disassemble_free_target (&m_di);
}
+/* Wrapper around calling gdbarch_print_insn. This function takes care of
+ first calling the extension language hooks for print_insn, and, if none
+ of the extension languages can print this instruction, calls
+ gdbarch_print_insn to do the work.
+
+ GDBARCH is the architecture to disassemble in, VMA is the address of the
+ instruction being disassembled, and INFO is the libopcodes disassembler
+ related information. */
+
+static int
+gdb_print_insn_1 (struct gdbarch *gdbarch, CORE_ADDR vma,
+ struct disassemble_info *info)
+{
+ /* Call into the extension languages to do the disassembly. */
+ gdb::optional<int> length = ext_lang_print_insn (gdbarch, vma, info);
+ if (length.has_value ())
+ return *length;
+
+ /* No extension language wanted to do the disassembly, so do it
+ manually. */
+ return gdbarch_print_insn (gdbarch, vma, info);
+}
+
+/* See disasm.h. */
+
+bool gdb_disassembler::use_ext_lang_colorization_p = true;
+
+/* See disasm.h. */
+
int
gdb_disassembler::print_insn (CORE_ADDR memaddr,
int *branch_delay_insns)
{
m_err_memaddr.reset ();
+ m_buffer.clear ();
- int length = gdbarch_print_insn (arch (), memaddr, &m_di);
+ int length = gdb_print_insn_1 (arch (), memaddr, &m_di);
+ /* If we have successfully disassembled an instruction, styling is on, we
+ think that the extension language might be able to perform styling for
+ us, and the destination can support styling, then lets call into the
+ extension languages in order to style this output. */
+ if (length > 0 && disassembler_styling
+ && use_ext_lang_colorization_p
+ && m_dest->can_emit_style_escape ())
+ {
+ gdb::optional<std::string> ext_contents;
+ ext_contents = ext_lang_colorize_disasm (m_buffer.string (), arch ());
+ if (ext_contents.has_value ())
+ m_buffer = std::move (*ext_contents);
+ else
+ {
+ /* The extension language failed to add styling to the
+ disassembly output. Set the static flag so that next time we
+ disassemble we don't even bother attempting to use the
+ extension language for styling. */
+ use_ext_lang_colorization_p = false;
+
+ /* The instruction we just disassembled, and the extension
+ languages failed to style, might have otherwise had some
+ minimal styling applied by GDB. To regain that styling we
+ need to recreate m_buffer, but this time with styling support.
+
+ To do this we perform an in-place new, but this time turn on
+ the styling support, then we can re-disassembly the
+ instruction, and gain any minimal styling GDB might add. */
+ gdb_static_assert ((std::is_same<decltype (m_buffer),
+ string_file>::value));
+ gdb_assert (!m_buffer.term_out ());
+ m_buffer.~string_file ();
+ new (&m_buffer) string_file (true);
+ length = gdb_print_insn_1 (arch (), memaddr, &m_di);
+ gdb_assert (length > 0);
+ }
+ }
+
+ /* Push any disassemble output to the real destination stream. We do
+ this even if the disassembler reported failure (-1) as the
+ disassembler may have printed something to its output stream. */
+ m_di.fprintf_func (m_dest, "%s", m_buffer.c_str ());
+
+ /* If the disassembler failed then report an appropriate error. */
if (length < 0)
{
if (m_err_memaddr.has_value ())
/* Assume symtab is valid for whole PC range. */
symtab = find_pc_line_symtab (low);
- if (symtab != NULL && SYMTAB_LINETABLE (symtab) != NULL)
- nlines = SYMTAB_LINETABLE (symtab)->nitems;
+ if (symtab != NULL && symtab->linetable () != NULL)
+ nlines = symtab->linetable ()->nitems;
if (!(flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE))
|| nlines <= 0)
return gdb_print_insn (gdbarch, addr, &null_stream, NULL);
}
-/* fprintf-function for gdb_buffered_insn_length. This function is a
- nop, we don't want to print anything, we just want to compute the
- length of the insn. */
+/* See disasm.h. */
-static int ATTRIBUTE_PRINTF (2, 3)
-gdb_buffered_insn_length_fprintf (void *stream, const char *format, ...)
+int
+gdb_non_printing_disassembler::null_fprintf_func (void *stream,
+ const char *format, ...)
{
return 0;
}
-/* Initialize a struct disassemble_info for gdb_buffered_insn_length.
- Upon return, *DISASSEMBLER_OPTIONS_HOLDER owns the string pointed
- to by DI.DISASSEMBLER_OPTIONS. */
+/* See disasm.h. */
-static void
-gdb_buffered_insn_length_init_dis (struct gdbarch *gdbarch,
- struct disassemble_info *di,
- const gdb_byte *insn, int max_len,
- CORE_ADDR addr,
- std::string *disassembler_options_holder)
+int
+gdb_non_printing_disassembler::null_fprintf_styled_func
+ (void *stream, enum disassembler_style style, const char *format, ...)
{
- init_disassemble_info (di, NULL, gdb_buffered_insn_length_fprintf);
-
- /* init_disassemble_info installs buffer_read_memory, etc.
- so we don't need to do that here.
- The cast is necessary until disassemble_info is const-ified. */
- di->buffer = (gdb_byte *) insn;
- di->buffer_length = max_len;
- di->buffer_vma = addr;
-
- di->arch = gdbarch_bfd_arch_info (gdbarch)->arch;
- di->mach = gdbarch_bfd_arch_info (gdbarch)->mach;
- di->endian = gdbarch_byte_order (gdbarch);
- di->endian_code = gdbarch_byte_order_for_code (gdbarch);
-
- *disassembler_options_holder = get_all_disassembler_options (gdbarch);
- if (!disassembler_options_holder->empty ())
- di->disassembler_options = disassembler_options_holder->c_str ();
- disassemble_init_for_target (di);
+ return 0;
}
+/* A non-printing disassemble_info management class. The disassemble_info
+ setup by this class will not print anything to the output stream (there
+ is no output stream), and the instruction to be disassembled will be
+ read from a buffer passed to the constructor. */
+
+struct gdb_non_printing_buffer_disassembler
+ : public gdb_non_printing_disassembler
+{
+ /* Constructor. GDBARCH is the architecture to disassemble for, BUFFER
+ contains the instruction to disassemble, and INSN_ADDRESS is the
+ address (in target memory) of the instruction to disassemble. */
+ gdb_non_printing_buffer_disassembler (struct gdbarch *gdbarch,
+ gdb::array_view<const gdb_byte> buffer,
+ CORE_ADDR insn_address)
+ : gdb_non_printing_disassembler (gdbarch, nullptr)
+ {
+ /* The cast is necessary until disassemble_info is const-ified. */
+ m_di.buffer = (gdb_byte *) buffer.data ();
+ m_di.buffer_length = buffer.size ();
+ m_di.buffer_vma = insn_address;
+ }
+};
+
/* Return the length in bytes of INSN. MAX_LEN is the size of the
buffer containing INSN. */
gdb_buffered_insn_length (struct gdbarch *gdbarch,
const gdb_byte *insn, int max_len, CORE_ADDR addr)
{
- struct disassemble_info di;
- std::string disassembler_options_holder;
-
- gdb_buffered_insn_length_init_dis (gdbarch, &di, insn, max_len, addr,
- &disassembler_options_holder);
-
- int result = gdbarch_print_insn (gdbarch, addr, &di);
- disassemble_free_target (&di);
+ gdb::array_view<const gdb_byte> buffer
+ = gdb::make_array_view (insn, max_len);
+ gdb_non_printing_buffer_disassembler dis (gdbarch, buffer, addr);
+ int result = gdb_print_insn_1 (gdbarch, addr, dis.disasm_info ());
return result;
}
valid_options_and_args = gdbarch_valid_disassembler_options (gdbarch);
if (valid_options_and_args == NULL)
{
- fprintf_filtered (gdb_stderr, _("\
+ gdb_printf (gdb_stderr, _("\
'set disassembler-options ...' is not supported on this architecture.\n"));
return;
}
break;
if (valid_options->name[i] == NULL)
{
- fprintf_filtered (gdb_stderr,
- _("Invalid disassembler option value: '%s'.\n"),
- opt);
+ gdb_printf (gdb_stderr,
+ _("Invalid disassembler option value: '%s'.\n"),
+ opt);
return;
}
}
if (options == NULL)
options = "";
- fprintf_filtered (file, _("The current disassembler options are '%s'\n\n"),
- options);
+ gdb_printf (file, _("The current disassembler options are '%s'\n\n"),
+ options);
valid_options_and_args = gdbarch_valid_disassembler_options (gdbarch);
if (valid_options_and_args == NULL)
{
- fputs_filtered (_("There are no disassembler options available "
- "for this architecture.\n"),
- file);
+ gdb_puts (_("There are no disassembler options available "
+ "for this architecture.\n"),
+ file);
return;
}
valid_options = &valid_options_and_args->options;
- fprintf_filtered (file, _("\
+ gdb_printf (file, _("\
The following disassembler options are supported for use with the\n\
'set disassembler-options OPTION [,OPTION]...' command:\n"));
{
size_t i, max_len = 0;
- fprintf_filtered (file, "\n");
+ gdb_printf (file, "\n");
/* Compute the length of the longest option name. */
for (i = 0; valid_options->name[i] != NULL; i++)
for (i = 0, max_len++; valid_options->name[i] != NULL; i++)
{
- fprintf_filtered (file, " %s", valid_options->name[i]);
+ gdb_printf (file, " %s", valid_options->name[i]);
if (valid_options->arg != NULL && valid_options->arg[i] != NULL)
- fprintf_filtered (file, "%s", valid_options->arg[i]->name);
+ gdb_printf (file, "%s", valid_options->arg[i]->name);
if (valid_options->description[i] != NULL)
{
size_t len = strlen (valid_options->name[i]);
if (valid_options->arg != NULL && valid_options->arg[i] != NULL)
len += strlen (valid_options->arg[i]->name);
- fprintf_filtered (file, "%*c %s", (int) (max_len - len), ' ',
- valid_options->description[i]);
+ gdb_printf (file, "%*c %s", (int) (max_len - len), ' ',
+ valid_options->description[i]);
}
- fprintf_filtered (file, "\n");
+ gdb_printf (file, "\n");
}
}
else
{
size_t i;
- fprintf_filtered (file, " ");
+ gdb_printf (file, " ");
for (i = 0; valid_options->name[i] != NULL; i++)
{
- fprintf_filtered (file, "%s", valid_options->name[i]);
+ gdb_printf (file, "%s", valid_options->name[i]);
if (valid_options->arg != NULL && valid_options->arg[i] != NULL)
- fprintf_filtered (file, "%s", valid_options->arg[i]->name);
+ gdb_printf (file, "%s", valid_options->arg[i]->name);
if (valid_options->name[i + 1] != NULL)
- fprintf_filtered (file, ", ");
- wrap_here (" ");
+ gdb_printf (file, ", ");
+ file->wrap_here (2);
}
- fprintf_filtered (file, "\n");
+ gdb_printf (file, "\n");
}
valid_args = valid_options_and_args->args;
for (i = 0; valid_args[i].name != NULL; i++)
{
- fprintf_filtered (file, _("\n\
+ gdb_printf (file, _("\n\
For the options above, the following values are supported for \"%s\":\n "),
- valid_args[i].name);
+ valid_args[i].name);
for (j = 0; valid_args[i].values[j] != NULL; j++)
{
- fprintf_filtered (file, " %s", valid_args[i].values[j]);
- wrap_here (" ");
+ gdb_printf (file, " %s", valid_args[i].values[j]);
+ file->wrap_here (3);
}
- fprintf_filtered (file, "\n");
+ gdb_printf (file, "\n");
}
}
}
projects / binutils-gdb.git / blobdiff