mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
15e15b2d9c
This commit extends the Python API to include disassembler support.
The motivation for this commit was to provide an API by which the user
could write Python scripts that would augment the output of the
disassembler.
To achieve this I have followed the model of the existing libopcodes
disassembler, that is, instructions are disassembled one by one. This
does restrict the type of things that it is possible to do from a
Python script, i.e. all additional output has to fit on a single line,
but this was all I needed, and creating something more complex would,
I think, require greater changes to how GDB's internal disassembler
operates.
The disassembler API is contained in the new gdb.disassembler module,
which defines the following classes:
DisassembleInfo
Similar to libopcodes disassemble_info structure, has read-only
properties: address, architecture, and progspace. And has methods:
__init__, read_memory, and is_valid.
Each time GDB wants an instruction disassembled, an instance of
this class is passed to a user written disassembler function, by
reading the properties, and calling the methods (and other support
methods in the gdb.disassembler module) the user can perform and
return the disassembly.
Disassembler
This is a base-class which user written disassemblers should
inherit from. This base class provides base implementations of
__init__ and __call__ which the user written disassembler should
override.
DisassemblerResult
This class can be used to hold the result of a call to the
disassembler, it's really just a wrapper around a string (the text
of the disassembled instruction) and a length (in bytes). The user
can return an instance of this class from Disassembler.__call__ to
represent the newly disassembled instruction.
The gdb.disassembler module also provides the following functions:
register_disassembler
This function registers an instance of a Disassembler sub-class
as a disassembler, either for one specific architecture, or, as a
global disassembler for all architectures.
builtin_disassemble
This provides access to GDB's builtin disassembler. A common
use case that I see is augmenting the existing disassembler output.
The user code can call this function to have GDB disassemble the
instruction in the normal way. The user gets back a
DisassemblerResult object, which they can then read in order to
augment the disassembler output in any way they wish.
This function also provides a mechanism to intercept the
disassemblers reads of memory, thus the user can adjust what GDB
sees when it is disassembling.
The included documentation provides a more detailed description of the
API.
There is also a new CLI command added:
maint info python-disassemblers
This command is defined in the Python gdb.disassemblers module, and
can be used to list the currently registered Python disassemblers.
420 lines
12 KiB
Makefile
420 lines
12 KiB
Makefile
# Copyright (C) 2010-2022 Free Software Foundation, Inc.
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# Makefile for building a staged copy of the data-directory.
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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
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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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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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Please keep lists in this file sorted alphabetically, with one item per line.
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# See gdb/Makefile.in for guidelines on ordering files and directories.
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srcdir = @srcdir@
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SYSCALLS_SRCDIR = $(srcdir)/../syscalls
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PYTHON_SRCDIR = $(srcdir)/../python/lib
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GUILE_SRCDIR = $(srcdir)/../guile/lib
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SYSTEM_GDBINIT_SRCDIR = $(srcdir)/../system-gdbinit
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VPATH = $(srcdir):$(SYSCALLS_SRCDIR):$(PYTHON_SRCDIR):$(GUILE_SRCDIR):$(SYSTEM_GDBINIT_SRCDIR)
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XSLTPROC = @XSLTPROC@
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top_srcdir = @top_srcdir@
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top_builddir = @top_builddir@
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prefix = @prefix@
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exec_prefix = @exec_prefix@
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datarootdir = @datarootdir@
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datadir = @datadir@
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SHELL = @SHELL@
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LN_S = @LN_S@
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INSTALL = @INSTALL@
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INSTALL_DATA = @INSTALL_DATA@
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INSTALL_DIR = $(SHELL) $(srcdir)/../../mkinstalldirs
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GDB_DATADIR = @GDB_DATADIR@
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SYSCALLS_DIR = syscalls
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SYSCALLS_INSTALL_DIR = $(DESTDIR)$(GDB_DATADIR)/$(SYSCALLS_DIR)
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GEN_SYSCALLS_FILES = \
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aarch64-linux.xml \
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amd64-linux.xml \
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arm-linux.xml \
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i386-linux.xml \
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mips-n32-linux.xml \
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mips-n64-linux.xml \
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mips-o32-linux.xml \
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ppc-linux.xml \
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ppc64-linux.xml \
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s390-linux.xml \
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s390x-linux.xml \
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sparc-linux.xml \
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sparc64-linux.xml
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SYSCALLS_FILES = gdb-syscalls.dtd freebsd.xml netbsd.xml $(GEN_SYSCALLS_FILES)
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PYTHON_DIR = python
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PYTHON_INSTALL_DIR = $(DESTDIR)$(GDB_DATADIR)/$(PYTHON_DIR)
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PYTHON_FILE_LIST = \
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gdb/__init__.py \
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gdb/disassembler.py \
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gdb/FrameDecorator.py \
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gdb/FrameIterator.py \
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gdb/frames.py \
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gdb/printing.py \
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gdb/prompt.py \
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gdb/styling.py \
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gdb/types.py \
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gdb/unwinder.py \
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gdb/xmethod.py \
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gdb/command/__init__.py \
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gdb/command/explore.py \
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gdb/command/frame_filters.py \
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gdb/command/pretty_printers.py \
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gdb/command/prompt.py \
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gdb/command/type_printers.py \
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gdb/command/unwinders.py \
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gdb/command/xmethods.py \
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gdb/function/__init__.py \
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gdb/function/as_string.py \
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gdb/function/caller_is.py \
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gdb/function/strfns.py \
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gdb/printer/__init__.py \
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gdb/printer/bound_registers.py
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@HAVE_PYTHON_TRUE@PYTHON_FILES = $(PYTHON_FILE_LIST)
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@HAVE_PYTHON_FALSE@PYTHON_FILES =
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GUILE_DIR = guile
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GUILE_INSTALL_DIR = $(DESTDIR)$(GDB_DATADIR)/$(GUILE_DIR)
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GUILE_SOURCE_FILES = \
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./gdb.scm \
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gdb/boot.scm \
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gdb/experimental.scm \
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gdb/init.scm \
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gdb/iterator.scm \
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gdb/printing.scm \
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gdb/support.scm \
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gdb/types.scm
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GUILE_COMPILED_FILES = \
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./gdb.go \
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gdb/experimental.go \
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gdb/iterator.go \
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gdb/printing.go \
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gdb/support.go \
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gdb/types.go
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@HAVE_GUILE_TRUE@GUILE_FILES = $(GUILE_SOURCE_FILES) $(GUILE_COMPILED_FILES)
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@HAVE_GUILE_FALSE@GUILE_FILES =
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GUILD = @GUILD@
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GUILD_TARGET_FLAG = @GUILD_TARGET_FLAG@
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# Flags passed to 'guild compile'.
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# Note: We can't use -Wunbound-variable because all the variables
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# defined in C aren't visible when we compile.
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# Note: To work around a guile 2.0.5 issue (it can't find gdb/init.scm even if
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# we pass -L <dir>) we have to compile in the directory containing gdb.scm.
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# We still need to pass "-L ." so that other modules are found.
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GUILD_COMPILE_FLAGS = \
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$(GUILD_TARGET_FLAG) \
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-Warity-mismatch -Wformat -Wunused-toplevel \
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-L .
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SYSTEM_GDBINIT_DIR = system-gdbinit
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SYSTEM_GDBINIT_INSTALL_DIR = $(DESTDIR)$(GDB_DATADIR)/$(SYSTEM_GDBINIT_DIR)
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SYSTEM_GDBINIT_FILES = \
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elinos.py \
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wrs-linux.py
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FLAGS_TO_PASS = \
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"prefix=$(prefix)" \
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"exec_prefix=$(exec_prefix)" \
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"infodir=$(infodir)" \
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"datarootdir=$(datarootdir)" \
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"docdir=$(docdir)" \
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"htmldir=$(htmldir)" \
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"pdfdir=$(pdfdir)" \
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"libdir=$(libdir)" \
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"mandir=$(mandir)" \
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"datadir=$(datadir)" \
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"includedir=$(includedir)" \
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"against=$(against)" \
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"DESTDIR=$(DESTDIR)" \
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"AR=$(AR)" \
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"AR_FLAGS=$(AR_FLAGS)" \
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"CC=$(CC)" \
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"CFLAGS=$(CFLAGS)" \
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"CXX=$(CXX)" \
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"CXXFLAGS=$(CXXFLAGS)" \
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"DLLTOOL=$(DLLTOOL)" \
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"LDFLAGS=$(LDFLAGS)" \
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"RANLIB=$(RANLIB)" \
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"MAKEINFO=$(MAKEINFO)" \
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"MAKEHTML=$(MAKEHTML)" \
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"MAKEHTMLFLAGS=$(MAKEHTMLFLAGS)" \
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"INSTALL=$(INSTALL)" \
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"INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \
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"INSTALL_DATA=$(INSTALL_DATA)" \
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"RUNTEST=$(RUNTEST)" \
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"RUNTESTFLAGS=$(RUNTESTFLAGS)"
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.PHONY: all
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all: stamp-syscalls stamp-python stamp-guile stamp-system-gdbinit
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%.xml: @MAINTAINER_MODE_TRUE@ %.xml.in apply-defaults.xsl linux-defaults.xml.in
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$(XSLTPROC) -o $(SYSCALLS_SRCDIR)/$@ $(SYSCALLS_SRCDIR)/apply-defaults.xsl\
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$(SYSCALLS_SRCDIR)/$@.in
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.PHONY: syscall-xml
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syscall-xml: $(GEN_SYSCALLS_FILES)
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.PHONY: clean-syscall-xml
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# Only clean files generated XML files.
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clean-syscall-xml:
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files='$(GEN_SYSCALLS_FILES)' ; \
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for file in $$files; do \
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rm -f "$(SYSCALLS_SRCDIR)/$$file"; \
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done
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# For portability's sake, we need to handle systems that don't have
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# symbolic links.
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stamp-syscalls: Makefile $(SYSCALLS_FILES)
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rm -rf ./$(SYSCALLS_DIR)
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mkdir ./$(SYSCALLS_DIR)
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files='$(SYSCALLS_FILES)' ; \
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for file in $$files ; do \
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f=$(SYSCALLS_SRCDIR)/$$file ; \
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if test -f $$f ; then \
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$(INSTALL_DATA) $$f ./$(SYSCALLS_DIR) ; \
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fi ; \
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done
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touch $@
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.PHONY: clean-syscalls
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clean-syscalls:
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rm -rf $(SYSCALLS_DIR)
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rm -f stamp-syscalls
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# This target is responsible for properly installing the syscalls'
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# XML files in the system.
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.PHONY: install-syscalls
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install-syscalls:
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$(INSTALL_DIR) $(SYSCALLS_INSTALL_DIR)
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files='$(SYSCALLS_FILES)' ; \
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for file in $$files; do \
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f=$(SYSCALLS_SRCDIR)/$$file ; \
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if test -f $$f ; then \
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$(INSTALL_DATA) $$f $(SYSCALLS_INSTALL_DIR) ; \
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fi ; \
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done
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.PHONY: uninstall-syscalls
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uninstall-syscalls:
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files='$(SYSCALLS_FILES)' ; \
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for file in $$files ; do \
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slashdir=`echo "/$$file" | sed 's,/[^/]*$$,,'` ; \
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rm -f $(SYSCALLS_INSTALL_DIR)/$$file ; \
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while test "x$$file" != "x$$slashdir" ; do \
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rmdir 2>/dev/null "$(SYSCALLS_INSTALL_DIR)$$slashdir" ; \
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file="$$slashdir" ; \
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slashdir=`echo "$$file" | sed 's,/[^/]*$$,,'` ; \
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done \
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done
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stamp-python: Makefile $(PYTHON_FILES)
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rm -rf ./$(PYTHON_DIR)
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files='$(PYTHON_FILES)' ; \
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if test "x$$files" != x ; then \
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for file in $$files ; do \
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dir=`echo "$$file" | sed 's,/[^/]*$$,,'` ; \
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$(INSTALL_DIR) ./$(PYTHON_DIR)/$$dir ; \
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$(INSTALL_DATA) $(PYTHON_SRCDIR)/$$file ./$(PYTHON_DIR)/$$dir ; \
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done ; \
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fi
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touch $@
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.PHONY: clean-python
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clean-python:
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rm -rf $(PYTHON_DIR)
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rm -f stamp-python
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.PHONY: install-python
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install-python:
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files='$(PYTHON_FILES)' ; \
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if test "x$$files" != x ; then \
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for file in $$files ; do \
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dir=`echo "$$file" | sed 's,/[^/]*$$,,'` ; \
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$(INSTALL_DIR) $(PYTHON_INSTALL_DIR)/$$dir ; \
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$(INSTALL_DATA) ./$(PYTHON_DIR)/$$file $(PYTHON_INSTALL_DIR)/$$dir ; \
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done ; \
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fi
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.PHONY: uninstall-python
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uninstall-python:
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files='$(PYTHON_FILES)' ; \
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if test "x$$files" != x ; then \
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for file in $$files ; do \
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slashdir=`echo "/$$file" | sed 's,/[^/]*$$,,'` ; \
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rm -f $(PYTHON_INSTALL_DIR)/$$file ; \
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while test "x$$file" != "x$$slashdir" ; do \
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rmdir 2>/dev/null "$(PYTHON_INSTALL_DIR)$$slashdir" ; \
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file="$$slashdir" ; \
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slashdir=`echo "$$file" | sed 's,/[^/]*$$,,'` ; \
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done \
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done ; \
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fi
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stamp-guile: Makefile $(GUILE_SOURCE_FILES)
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rm -rf ./$(GUILE_DIR)
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if test "x$(GUILE_FILES)" != x ; then \
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files='$(GUILE_SOURCE_FILES)' ; \
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for file in $$files ; do \
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dir=`echo "$$file" | sed 's,/[^/]*$$,,'` ; \
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$(INSTALL_DIR) ./$(GUILE_DIR)/$$dir ; \
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$(INSTALL_DATA) $(GUILE_SRCDIR)/$$file ./$(GUILE_DIR)/$$dir ; \
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done ; \
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files='$(GUILE_COMPILED_FILES)' ; \
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cd ./$(GUILE_DIR) ; \
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for go in $$files ; do \
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source="`echo $$go | sed 's/\.go$$/.scm/'`" ; \
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echo $(GUILD) compile $(GUILD_COMPILE_FLAGS) -o "$$go" "$$source" ; \
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$(GUILD) compile $(GUILD_COMPILE_FLAGS) -o "$$go" "$$source" || exit 1 ; \
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done ; \
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fi
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touch $@
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.PHONY: clean-guile
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clean-guile:
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rm -rf $(GUILE_DIR)
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rm -f stamp-guile
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.PHONY: install-guile
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install-guile:
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files='$(GUILE_FILES)' ; \
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if test "x$$files" != x ; then \
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for file in $$files ; do \
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dir=`echo "$$file" | sed 's,/[^/]*$$,,'` ; \
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$(INSTALL_DIR) $(GUILE_INSTALL_DIR)/$$dir ; \
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$(INSTALL_DATA) ./$(GUILE_DIR)/$$file $(GUILE_INSTALL_DIR)/$$dir ; \
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done ; \
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fi
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.PHONY: uninstall-guile
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uninstall-guile:
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files='$(GUILE_FILES)' ; \
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if test "x$$files" != x ; then \
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for file in $$files ; do \
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slashdir=`echo "/$$file" | sed 's,/[^/]*$$,,'` ; \
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rm -f $(GUILE_INSTALL_DIR)/$$file ; \
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while test "x$$file" != "x$$slashdir" ; do \
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rmdir 2>/dev/null "$(GUILE_INSTALL_DIR)$$slashdir" ; \
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file="$$slashdir" ; \
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slashdir=`echo "$$file" | sed 's,/[^/]*$$,,'` ; \
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done \
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done ; \
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fi
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stamp-system-gdbinit: Makefile $(SYSTEM_GDBINIT_FILES)
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rm -rf ./$(SYSTEM_GDBINIT_DIR)
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mkdir ./$(SYSTEM_GDBINIT_DIR)
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files='$(SYSTEM_GDBINIT_FILES)' ; \
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for file in $$files ; do \
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f=$(SYSTEM_GDBINIT_SRCDIR)/$$file ; \
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if test -f $$f ; then \
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$(INSTALL_DATA) $$f ./$(SYSTEM_GDBINIT_DIR) ; \
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fi ; \
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done
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touch $@
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.PHONY: clean-system-gdbinit
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clean-system-gdbinit:
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rm -rf $(SYSTEM_GDBINIT_DIR)
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rm -f stamp-system-gdbinit
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.PHONY: install-system-gdbinit
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install-system-gdbinit:
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$(INSTALL_DIR) $(SYSTEM_GDBINIT_INSTALL_DIR)
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files='$(SYSTEM_GDBINIT_FILES)' ; \
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for file in $$files; do \
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f=$(SYSTEM_GDBINIT_SRCDIR)/$$file ; \
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if test -f $$f ; then \
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$(INSTALL_DATA) $$f $(SYSTEM_GDBINIT_INSTALL_DIR) ; \
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fi ; \
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done
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.PHONY: uninstall-system-gdbinit
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uninstall-system-gdbinit:
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files='$(SYSTEM_GDBINIT_FILES)' ; \
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for file in $$files ; do \
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slashdir=`echo "/$$file" | sed 's,/[^/]*$$,,'` ; \
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rm -f $(SYSTEM_GDBINIT_INSTALL_DIR)/$$file ; \
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while test "x$$file" != "x$$slashdir" ; do \
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rmdir 2>/dev/null "$(SYSTEM_GDBINIT_INSTALL_DIR)$$slashdir" ; \
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file="$$slashdir" ; \
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slashdir=`echo "$$file" | sed 's,/[^/]*$$,,'` ; \
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done \
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done
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# Traditionally "install" depends on "all". But it may be useful
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# not to; for example, if the user has made some trivial change to a
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# source file and doesn't care about rebuilding or just wants to save the
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# time it takes for make to check that all is up to date.
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# install-only is intended to address that need.
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.PHONY: install
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install: all
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@$(MAKE) $(FLAGS_TO_PASS) install-only
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.PHONY: install-only
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install-only: install-syscalls install-python install-guile \
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install-system-gdbinit
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.PHONY: uninstall
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uninstall: uninstall-syscalls uninstall-python uninstall-guile \
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uninstall-system-gdbinit
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.PHONY: clean
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clean: clean-syscalls clean-python clean-guile clean-system-gdbinit
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.PHONY: maintainer-clean realclean distclean
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maintainer-clean realclean distclean: clean
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rm -f Makefile
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.PHONY: check installcheck info dvi pdf html
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.PHONY: install-info install-pdf install-html clean-info
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check installcheck:
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info dvi pdf html:
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install-info install-pdf install-html:
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clean-info:
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# GNU Make has an annoying habit of putting *all* the Makefile variables
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# into the environment, unless you include this target as a circumvention.
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# Rumor is that this will be fixed (and this target can be removed)
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# in GNU Make 4.0.
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.NOEXPORT:
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# GNU Make 3.63 has a different problem: it keeps tacking command line
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# overrides onto the definition of $(MAKE). This variable setting
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# will remove them.
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MAKEOVERRIDES=
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Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
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cd .. && $(SHELL) ./config.status data-directory/Makefile
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# Disable implicit make rules.
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include $(srcdir)/../disable-implicit-rules.mk
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