Go to file
Andrew Burgess 18d4886c00 gdb/x86: move have_ptrace_getfpxregs global into gdb/nat directory
The have_ptrace_getfpxregs global tracks whether GDB or gdbserver is
running on a kernel that supports the GETFPXREGS ptrace request.

Currently this global is declared twice (once in GDB and once in
gdbserver), I think it makes sense to move this global into the nat/
directory, and have a single declaration and definition.

While moving this variable I have converted it to a tribool, as that
was what it really was, if even used the same numbering as the tribool
enum (-1, 0, 1).  Where have_ptrace_getfpxregs was used I have updated
in the obvious way.

However, while making this change I noticed what I think is a bug in
x86_linux_nat_target::read_description and x86_linux_read_description,
both of these functions can be called multiple times, but in both
cases we only end up calling i386_linux_read_description the first
time through in the event that PTRACE_GETFPXREGS is not supported.
This is because initially have_ptrace_getfpxregs will be
TRIBOOL_UNKNOWN, but after the ptrace call fails we set
have_ptrace_getfpxregs to TRIBOOL_FALSE.  The next time we attempt to
read the target description we'll skip the ptrace call, and so skip
the call to i386_linux_read_description.

I've not tried to address this preexisting bug in this commit, this is
purely a refactor, there should be no user visible changes after this
commit.  In later commits I'll merge the gdbserver and GDB code
together into the nat/ directory, and after that I'll try to address
this bug.

Reviewed-By: Felix Willgerodt <felix.willgerodt@intel.com>
2024-06-14 09:08:45 +01:00
bfd Automatic date update in version.in 2024-06-14 00:00:26 +00:00
binutils support_dt_relr aarch64 2024-06-11 20:29:25 +09:30
config autoconf: delete obsolete unused m4 file 2024-06-10 08:25:56 +09:30
contrib contrib: sync dg-extract-results.sh with GCC 2024-03-12 15:49:25 +00:00
cpu PR21739, Inconsistent diagnostics 2024-02-29 21:07:04 +10:30
elfcpp x86-64: Add R_X86_64_CODE_6_GOTTPOFF 2024-02-08 03:45:43 -08:00
etc Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
gas aarch64: add Branch Record Buffer extension instructions 2024-06-12 14:58:35 +01:00
gdb gdb/x86: move have_ptrace_getfpxregs global into gdb/nat directory 2024-06-14 09:08:45 +01:00
gdbserver gdb/x86: move have_ptrace_getfpxregs global into gdb/nat directory 2024-06-14 09:08:45 +01:00
gdbsupport gdb/gdbserver: share I386_LINUX_XSAVE_XCR0_OFFSET definition 2024-06-14 09:08:44 +01:00
gnulib autoupdate: replace obsolete macros AC_CONFIG_HEADER 2024-06-10 08:25:55 +09:30
gold autoupdate: regen after replacing obsolete macros 2024-06-10 08:25:56 +09:30
gprof autoupdate: regen after replacing obsolete macros 2024-06-10 08:25:56 +09:30
gprofng autoupdate: add square brackets around arguments of AC_INIT 2024-06-10 08:25:56 +09:30
include Add --rosegment option to BFD linker to stop the '-z separate-code' from generating two read-only segments. 2024-06-13 15:10:15 +01:00
ld Adjust linker tests that are sensitive to --rosegment 2024-06-13 17:00:29 +01:00
libbacktrace autoupdate: regen after replacing obsolete macros 2024-06-10 08:25:56 +09:30
libctf PR 31882 libctf: test suite incorrect format specifiers 2024-06-12 13:16:27 +09:30
libdecnumber regen config 2023-08-12 10:27:57 +09:30
libiberty autoupdate: regen after replacing obsolete macros 2024-06-10 08:25:56 +09:30
libsframe autoupdate: add square brackets around arguments of AC_INIT 2024-06-10 08:25:56 +09:30
opcodes aarch64: add Branch Record Buffer extension instructions 2024-06-12 14:58:35 +01:00
readline autoupdate: add square brackets around arguments of AC_INIT 2024-06-10 08:25:56 +09:30
sim regen sim/frv files for copyright update 2024-06-10 08:25:56 +09:30
texinfo
zlib autoupdate: regen after replacing obsolete macros 2024-06-10 08:25:56 +09:30
.cvsignore
.editorconfig
.gitattributes binutils-gdb/git: highlight whitespace errors in source files 2022-07-25 14:35:41 +01:00
.gitignore .gitignore: ignore .vscode 2024-05-30 12:09:35 +01:00
.pre-commit-config.yaml gdb: bump black version to 24.4.2 2024-05-16 11:34:40 -04:00
ar-lib
ChangeLog .pre-commit-config.yaml: bump black hook to 24.3.0 2024-03-20 14:44:16 -04:00
compile
config-ml.in MSP430: Add -fno-exceptions multilib 2023-08-12 10:24:26 +09:30
config.guess Synchronize config.sub and config.guess with their upstream master versions. 2024-01-04 12:00:34 +00:00
config.rpath
config.sub Synchronize config.sub and config.guess with their upstream master versions. 2024-01-04 12:00:34 +00:00
configure autoupdate: regen after replacing obsolete macros 2024-06-10 08:25:56 +09:30
configure.ac autoupdate: replace old version of AC_INIT by the new one 2024-06-10 08:25:55 +09:30
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
depcomp
djunpack.bat
install-sh
libtool.m4 FDPIC: Handle arm*-*-uclinuxfdpiceabi in configure scripts 2023-08-12 10:25:06 +09:30
lt~obsolete.m4
ltgcc.m4
ltmain.sh Do not use HAVE_DOS_BASED_FILE_SYSTEM for Cygwin. 2023-08-12 10:25:06 +09:30
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS Fix compiling bfd/vms-lib.c for a 32-bit host. 2024-03-18 10:26:16 +00:00
Makefile.def Revert "Pass GUILE down to subdirectories" 2024-03-22 11:07:28 -06:00
Makefile.in Revert "Pass GUILE down to subdirectories" 2024-03-22 11:07:28 -06:00
Makefile.tpl Revert "Pass GUILE down to subdirectories" 2024-03-22 11:07:28 -06:00
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README
README-maintainer-mode Note that at least dejagnu version 1.5.3 is required in order to be ale to run the testsuites. 2022-10-04 10:54:19 +01:00
SECURITY.txt Add a SECURITY.txt file describing the GNU Binutils' project's stance on security related bugs. 2023-04-20 16:52:11 +01:00
setup.com
src-release.sh src-release.sh: don't take untracked files into account in the uncommitted changes check 2024-06-10 12:40:06 +01:00
symlink-tree
test-driver
ylwrap

		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.