1eb3991427
I recently stumbled on this code mentioning Linux kernel 2.6.25, and
thought it could be time for some spring cleaning (newer GDBs probably
don't need to supports 12-year old kernels). I then found that the
"legacy" case is probably broken anyway, which gives an even better
motivation for its removal.
In short, this patch removes the configure checks that check if
user_regs_struct contains the fs_base/gs_base fields and adjusts all
uses of the HAVE_STRUCT_USER_REGS_STRUCT_{FS,GS}_BASE macros. The
longer explanation/rationale follows.
Apparently, Linux kernels since 2.6.25 (that's from 2008) have been
reliably providing fs_base and gs_base as part of user_regs_struct.
Commit df5d438e33d7 in the Linux kernel [1] seems related. This means
that we can get these values by reading registers with PTRACE_GETREGS.
Previously, these values were obtained using a separate
PTRACE_ARCH_PRCTL ptrace call.
First, I'm not even sure the configure check was really right in the
first place.
The user_regs_struct used by GDB comes from
/usr/include/x86_64-linux-gnu/sys/user.h (or equivalent on other
distros) and is provided by glibc. glibc has had the fs_base/gs_base
fields in there for a very long time, at least since this commit from
2001 [2]. The Linux kernel also has its version of user_regs_struct,
which I think was exported to user-space at some point. It included the
fs_base/gs_base fields since at least this 2002 commit [3]. In any
case, my conclusion is that the fields were there long before the
aforementioned Linux kernel commit. The kernel commit didn't add these
fields, it only made sure that they have reliable values when obtained
with PTRACE_GETREGS.
So, checking for the presence of the fs_base/gs_base fields in struct
user_regs_struct doesn't sound like a good way of knowing if we can
reliably get the fs_base/gs_base values from PTRACE_GETREGS. My guess
is that if we were using that strategy on a < 2.6.25 kernel, things
would not work correctly:
- configure would find that the user_regs_struct has the fs_base/gs_base
fields (which are probided by glibc anyway)
- we would be reading the fs_base/gs_base values using PTRACE_GETREGS,
for which the kernel would provide unreliable values
Second, I have tried to see how things worked by forcing GDB to not use
fs_base/gs_base from PTRACE_GETREGS (forcing it to use the "legacy"
code, by configuring with
ac_cv_member_struct_user_regs_struct_gs_base=no ac_cv_member_struct_user_regs_struct_fs_base=no
Doing so breaks writing registers back to the inferior. For example,
calling an inferior functions gives an internal error:
(gdb) p malloc(10)
/home/smarchi/src/binutils-gdb/gdb/i387-tdep.c:1408: internal-error: invalid i387 regnum 152
The relevant last frames where this error happens are:
#8 0x0000563123d262fc in internal_error (file=0x563123e93fd8 "/home/smarchi/src/binutils-gdb/gdb/i387-tdep.c", line=1408, fmt=0x563123e94482 "invalid i387 regnum %d") at /home/smarchi/src/binutils-gdb/gdbsupport/errors.cc:55
#9 0x0000563123047d0d in i387_collect_xsave (regcache=0x5631269453f0, regnum=152, xsave=0x7ffd38402a20, gcore=0) at /home/smarchi/src/binutils-gdb/gdb/i387-tdep.c:1408
#10 0x0000563122c69e8a in amd64_collect_xsave (regcache=0x5631269453f0, regnum=152, xsave=0x7ffd38402a20, gcore=0) at /home/smarchi/src/binutils-gdb/gdb/amd64-tdep.c:3448
#11 0x0000563122c5e94c in amd64_linux_nat_target::store_registers (this=0x56312515fd10 <the_amd64_linux_nat_target>, regcache=0x5631269453f0, regnum=152) at /home/smarchi/src/binutils-gdb/gdb/amd64-linux-nat.c:335
#12 0x00005631234c8c80 in target_store_registers (regcache=0x5631269453f0, regno=152) at /home/smarchi/src/binutils-gdb/gdb/target.c:3485
#13 0x00005631232e8df7 in regcache::raw_write (this=0x5631269453f0, regnum=152, buf=0x56312759e468 "@\225\372\367\377\177") at /home/smarchi/src/binutils-gdb/gdb/regcache.c:765
#14 0x00005631232e8f0c in regcache::cooked_write (this=0x5631269453f0, regnum=152, buf=0x56312759e468 "@\225\372\367\377\177") at /home/smarchi/src/binutils-gdb/gdb/regcache.c:778
#15 0x00005631232e75ec in regcache::restore (this=0x5631269453f0, src=0x5631275eb130) at /home/smarchi/src/binutils-gdb/gdb/regcache.c:283
#16 0x0000563123083fc4 in infcall_suspend_state::restore (this=0x5631273ed930, gdbarch=0x56312718cf20, tp=0x5631270bca90, regcache=0x5631269453f0) at /home/smarchi/src/binutils-gdb/gdb/infrun.c:9103
#17 0x0000563123081eed in restore_infcall_suspend_state (inf_state=0x5631273ed930) at /home/smarchi/src/binutils-gdb/gdb/infrun.c:9151
The problem seems to be that amd64_linux_nat_target::store_registers
calls amd64_native_gregset_supplies_p to know whether gregset provides
fs_base. When !HAVE_STRUCT_USER_REGS_STRUCT_FS_BASE,
amd64_native_gregset_supplies_p returns false. store_registers
therefore assumes that it must be an "xstate" register. This is of
course wrong, and that leads to the failed assertion when
i387_collect_xsave doesn't recognize the register.
amd64_linux_nat_target::store_registers could probably be fixed to
handle this case, but I don't think it's worth it, given that it would
only be to support very old kernels.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=df5d438e33d7fc914ba9b6e0d6b019a8966c5fcc
[2] https://sourceware.org/git/?p=glibc.git;a=commit;h=c9cf6ddeebb7bb
[3] https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git/commit/?id=88e4bc32686ebd0b1111a94f93eba2d334241f68
gdb/ChangeLog:
* configure.ac: Remove check for fs_base/gs_base in
user_regs_struct.
* configure: Re-generate.
* config.in: Re-generate.
* amd64-nat.c (amd64_native_gregset_reg_offset): Adjust.
* amd64-linux-nat.c (amd64_linux_nat_target::fetch_registers,
amd64_linux_nat_target::store_registers, ps_get_thread_area, ): Adjust.
gdbserver/ChangeLog:
* configure.ac: Remove check for fs_base/gs_base in
user_regs_struct.
* configure: Re-generate.
* config.in: Re-generate.
* linux-x86-low.cc (x86_64_regmap, x86_fill_gregset,
x86_store_gregset): Adjust.
2130 lines
68 KiB
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2130 lines
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dnl Autoconf configure script for GDB, the GNU debugger.
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dnl Process this file with autoconf to produce a configure script.
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m4_include(../config/debuginfod.m4)
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yes | no)
|
|
;;
|
|
auto)
|
|
AC_CHECK_HEADERS(libunwind-ia64.h)
|
|
with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
|
|
;;
|
|
*)
|
|
AC_MSG_ERROR(
|
|
[bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
|
|
;;
|
|
esac
|
|
|
|
if test x"$with_libunwind_ia64" = xyes; then
|
|
AC_CHECK_HEADERS(libunwind-ia64.h)
|
|
if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
|
|
AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
|
|
fi
|
|
CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
|
|
CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
|
|
CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
|
|
fi
|
|
|
|
opt_curses=no
|
|
AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
|
|
|
|
prefer_curses=no
|
|
if test "$opt_curses" = "yes"; then
|
|
prefer_curses=yes
|
|
fi
|
|
|
|
# Profiling support.
|
|
AC_ARG_ENABLE(profiling,
|
|
AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
|
|
[case $enableval in
|
|
yes | no)
|
|
;;
|
|
*)
|
|
AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
|
|
esac],
|
|
[enable_profiling=no])
|
|
|
|
AC_CHECK_FUNCS(monstartup _mcleanup)
|
|
AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
|
|
[AC_TRY_LINK(
|
|
[#include <stdlib.h>
|
|
extern char _etext;
|
|
],
|
|
[free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
|
|
if test "$ac_cv_var__etext" = yes; then
|
|
AC_DEFINE(HAVE__ETEXT, 1,
|
|
[Define to 1 if your system has the _etext variable. ])
|
|
fi
|
|
AC_CACHE_CHECK([for etext], ac_cv_var_etext,
|
|
[AC_TRY_LINK(
|
|
[#include <stdlib.h>
|
|
extern char etext;
|
|
],
|
|
[free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
|
|
if test "$ac_cv_var_etext" = yes; then
|
|
AC_DEFINE(HAVE_ETEXT, 1,
|
|
[Define to 1 if your system has the etext variable. ])
|
|
fi
|
|
if test "$enable_profiling" = yes ; then
|
|
if test "$ac_cv_func_monstartup" = no || test "$ac_cv_func__mcleanup" = no; then
|
|
AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
|
|
fi
|
|
PROFILE_CFLAGS=-pg
|
|
OLD_CFLAGS="$CFLAGS"
|
|
CFLAGS="$CFLAGS $PROFILE_CFLAGS"
|
|
|
|
AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
|
|
[AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
|
|
ac_cv_cc_supports_pg=no)])
|
|
|
|
if test "$ac_cv_cc_supports_pg" = no; then
|
|
AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
|
|
fi
|
|
|
|
CFLAGS="$OLD_CFLAGS"
|
|
fi
|
|
|
|
CODESIGN_CERT=
|
|
AC_ARG_ENABLE([codesign],
|
|
AS_HELP_STRING([--enable-codesign=CERT],
|
|
[sign gdb with 'codesign -s CERT']),
|
|
[CODESIGN_CERT=$enableval])
|
|
AC_SUBST([CODESIGN_CERT])
|
|
|
|
ACX_PKGVERSION([GDB])
|
|
ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
|
|
AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
|
|
AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
|
|
|
|
# --------------------- #
|
|
# Checks for programs. #
|
|
# --------------------- #
|
|
|
|
AC_PROG_AWK
|
|
AC_PROG_INSTALL
|
|
AC_PROG_LN_S
|
|
AC_PROG_RANLIB
|
|
AC_PROG_YACC
|
|
|
|
AC_CHECK_TOOL(AR, ar)
|
|
AC_CHECK_TOOL(DLLTOOL, dlltool)
|
|
AC_CHECK_TOOL(WINDRES, windres)
|
|
|
|
case $host_os in
|
|
gnu*)
|
|
# Needed for GNU Hurd hosts.
|
|
AC_CHECK_TOOL(MIG, mig)
|
|
if test x"$MIG" = x; then
|
|
AC_MSG_ERROR([MIG not found but required for $host hosts])
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# ---------------------- #
|
|
# Checks for libraries. #
|
|
# ---------------------- #
|
|
|
|
# We might need to link with -lm; most simulators need it.
|
|
AC_CHECK_LIB(m, main)
|
|
|
|
# Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
|
|
AC_SEARCH_LIBS(gethostbyname, nsl)
|
|
|
|
# Some systems (e.g. Solaris) have `socketpair' in libsocket.
|
|
AC_SEARCH_LIBS(socketpair, socket)
|
|
|
|
# Link in zlib if we can. This allows us to read compressed debug sections.
|
|
AM_ZLIB
|
|
|
|
# On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
|
|
# On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
|
|
AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
|
|
[AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
|
|
[Define to 1 if your system has the kinfo_getvmmap function. ])])
|
|
|
|
AM_ICONV
|
|
|
|
# GDB may fork/exec the iconv program to get the list of supported character
|
|
# sets. Allow the user to specify where to find it.
|
|
# There are several factors affecting the choice of option name:
|
|
# - There is already --with-libiconv-prefix but we can't use it, it specifies
|
|
# the build-time location of libiconv files.
|
|
# - The program we need to find is iconv, which comes with glibc. The user
|
|
# doesn't necessarily have libiconv installed. Therefore naming this
|
|
# --with-libiconv-foo feels wrong.
|
|
# - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
|
|
# defined to work on directories not files (though it really doesn't know
|
|
# the difference).
|
|
# - Calling this --with-iconv-prefix is perceived to cause too much confusion
|
|
# with --with-libiconv-prefix.
|
|
# Putting these together is why the option name is --with-iconv-bin.
|
|
|
|
AC_ARG_WITH(iconv-bin,
|
|
AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
|
|
[iconv_bin="${withval}"
|
|
AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
|
|
[Path of directory of iconv program.])
|
|
GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
|
|
])
|
|
|
|
# For the TUI, we need enhanced curses functionality.
|
|
if test x"$enable_tui" != xno; then
|
|
prefer_curses=yes
|
|
fi
|
|
|
|
curses_found=no
|
|
if test x"$prefer_curses" = xyes; then
|
|
# FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
|
|
# curses library because the latter might not provide all the
|
|
# functionality we need. However, this leads to problems on systems
|
|
# where the linker searches /usr/local/lib, but the compiler doesn't
|
|
# search /usr/local/include, if ncurses is installed in /usr/local. A
|
|
# default installation of ncurses on alpha*-dec-osf* will lead to such
|
|
# a situation.
|
|
AC_SEARCH_LIBS(waddstr, [ncursesw ncurses cursesX curses])
|
|
|
|
if test "$ac_cv_search_waddstr" != no; then
|
|
curses_found=yes
|
|
fi
|
|
fi
|
|
|
|
# Check whether we should enable the TUI, but only do so if we really
|
|
# can.
|
|
if test x"$enable_tui" != xno; then
|
|
if test -d "$srcdir/tui"; then
|
|
if test "$curses_found" != no; then
|
|
CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
|
|
CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
|
|
CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
|
|
ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
|
|
else
|
|
if test x"$enable_tui" = xyes; then
|
|
AC_MSG_ERROR([no enhanced curses library found; disable TUI])
|
|
else
|
|
AC_MSG_WARN([no enhanced curses library found; disabling TUI])
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
# Since GDB uses Readline, we need termcap functionality. In many
|
|
# cases this will be provided by the curses library, but some systems
|
|
# have a separate termcap library, or no curses library at all.
|
|
|
|
case $host_os in
|
|
cygwin*)
|
|
if test -d "$srcdir/libtermcap"; then
|
|
LIBS="../libtermcap/libtermcap.a $LIBS"
|
|
ac_cv_search_tgetent="../libtermcap/libtermcap.a"
|
|
fi ;;
|
|
go32* | *djgpp*)
|
|
ac_cv_search_tgetent="none required"
|
|
;;
|
|
esac
|
|
|
|
# These are the libraries checked by Readline.
|
|
AC_SEARCH_LIBS(tgetent, [termcap tinfow tinfo curses ncursesw ncurses])
|
|
|
|
if test "$ac_cv_search_tgetent" = no; then
|
|
CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
|
|
fi
|
|
|
|
AC_ARG_WITH([system-readline],
|
|
[AS_HELP_STRING([--with-system-readline],
|
|
[use installed readline library])])
|
|
|
|
if test "$with_system_readline" = yes; then
|
|
AC_CACHE_CHECK([whether system readline is new enough],
|
|
[gdb_cv_readline_ok],
|
|
[AC_TRY_COMPILE(
|
|
[#include <stdio.h>
|
|
#include <readline/readline.h>],
|
|
[#if RL_VERSION_MAJOR < 7
|
|
# error "readline version 7 required"
|
|
#endif],
|
|
gdb_cv_readline_ok=yes,
|
|
gdb_cv_readline_ok=no)])
|
|
if test "$gdb_cv_readline_ok" != yes; then
|
|
AC_MSG_ERROR([system readline is not new enough])
|
|
fi
|
|
|
|
READLINE=-lreadline
|
|
READLINE_DEPS=
|
|
READLINE_CFLAGS=
|
|
READLINE_TEXI_INCFLAG=
|
|
else
|
|
READLINE='$(READLINE_DIR)/libreadline.a'
|
|
READLINE_DEPS='$(READLINE)'
|
|
READLINE_CFLAGS='-I$(READLINE_SRC)/..'
|
|
READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
|
|
fi
|
|
AC_SUBST(READLINE)
|
|
AC_SUBST(READLINE_DEPS)
|
|
AC_SUBST(READLINE_CFLAGS)
|
|
AC_SUBST(READLINE_TEXI_INCFLAG)
|
|
|
|
# Generate jit-reader.h
|
|
|
|
# This is typedeffed to GDB_CORE_ADDR in jit-reader.h
|
|
TARGET_PTR=
|
|
|
|
AC_CHECK_SIZEOF(unsigned long long)
|
|
AC_CHECK_SIZEOF(unsigned long)
|
|
AC_CHECK_SIZEOF(unsigned __int128)
|
|
|
|
if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
|
|
TARGET_PTR="unsigned long"
|
|
elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
|
|
TARGET_PTR="unsigned long long"
|
|
elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
|
|
TARGET_PTR="unsigned __int128"
|
|
else
|
|
TARGET_PTR="unsigned long"
|
|
fi
|
|
|
|
AC_SUBST(TARGET_PTR)
|
|
AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
|
|
|
|
AC_SEARCH_LIBS(dlopen, dl)
|
|
|
|
GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
|
|
[directory to load the JIT readers from],
|
|
[${libdir}/gdb])
|
|
|
|
AC_ARG_WITH(expat,
|
|
AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
|
|
[], [with_expat=auto])
|
|
AC_MSG_CHECKING([whether to use expat])
|
|
AC_MSG_RESULT([$with_expat])
|
|
|
|
if test "${with_expat}" = no; then
|
|
AC_MSG_WARN([expat support disabled; some features may be unavailable.])
|
|
HAVE_LIBEXPAT=no
|
|
else
|
|
AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
|
|
[XML_Parser p = XML_ParserCreate (0);])
|
|
if test "$HAVE_LIBEXPAT" != yes; then
|
|
if test "$with_expat" = yes; then
|
|
AC_MSG_ERROR([expat is missing or unusable])
|
|
else
|
|
AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
|
|
fi
|
|
else
|
|
save_LIBS=$LIBS
|
|
LIBS="$LIBS $LIBEXPAT"
|
|
AC_CHECK_FUNCS(XML_StopParser)
|
|
LIBS=$save_LIBS
|
|
fi
|
|
fi
|
|
|
|
AC_ARG_WITH(mpfr,
|
|
AS_HELP_STRING([--with-mpfr], [include MPFR support (auto/yes/no)]),
|
|
[], [with_mpfr=auto])
|
|
AC_MSG_CHECKING([whether to use MPFR])
|
|
AC_MSG_RESULT([$with_mpfr])
|
|
|
|
if test "${with_mpfr}" = no; then
|
|
AC_MSG_WARN([MPFR support disabled; some features may be unavailable.])
|
|
HAVE_LIBMPFR=no
|
|
else
|
|
AC_LIB_HAVE_LINKFLAGS([mpfr], [gmp], [#include <mpfr.h>],
|
|
[mpfr_exp_t exp; mpfr_t x;
|
|
mpfr_frexp (&exp, x, x, MPFR_RNDN);])
|
|
if test "$HAVE_LIBMPFR" != yes; then
|
|
if test "$with_mpfr" = yes; then
|
|
AC_MSG_ERROR([MPFR is missing or unusable])
|
|
else
|
|
AC_MSG_WARN([MPFR is missing or unusable; some features may be unavailable.])
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
# --------------------- #
|
|
# Check for libpython. #
|
|
# --------------------- #
|
|
|
|
dnl Utility to simplify finding libpython.
|
|
dnl $1 = the shell variable to assign the result to
|
|
dnl If libpython is found we store $version here.
|
|
dnl $2 = additional flags to add to CPPFLAGS
|
|
dnl $3 = additional flags to add to LIBS
|
|
|
|
AC_DEFUN([AC_TRY_LIBPYTHON],
|
|
[
|
|
define([have_libpython_var],$1)
|
|
new_CPPFLAGS=$2
|
|
new_LIBS=$3
|
|
AC_MSG_CHECKING([for python])
|
|
save_CPPFLAGS=$CPPFLAGS
|
|
save_LIBS=$LIBS
|
|
CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
|
|
LIBS="$new_LIBS $LIBS"
|
|
found_usable_python=no
|
|
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "Python.h"]],
|
|
[[Py_Initialize ();]])],
|
|
[have_libpython_var=yes
|
|
found_usable_python=yes
|
|
PYTHON_CPPFLAGS=$new_CPPFLAGS
|
|
PYTHON_LIBS=$new_LIBS])
|
|
CPPFLAGS=$save_CPPFLAGS
|
|
LIBS=$save_LIBS
|
|
AC_MSG_RESULT([${found_usable_python}])
|
|
])
|
|
|
|
dnl There are several different values for --with-python:
|
|
dnl
|
|
dnl no - Don't include python support.
|
|
dnl yes - Include python support, error if it's missing.
|
|
dnl If we find python in $PATH, use it to fetch configure options,
|
|
dnl otherwise assume the compiler can find it with no help from us.
|
|
dnl Python 2.7 and 2.6 are tried in turn.
|
|
dnl auto - Same as "yes", but if python is missing from the system,
|
|
dnl fall back to "no".
|
|
dnl /path/to/python/exec-prefix -
|
|
dnl Use the python located in this directory.
|
|
dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
|
|
dnl the compilation parameters. Otherwise use
|
|
dnl -I/path/to/python/exec-prefix/include,
|
|
dnl -L/path/to/python/exec-prefix/lib.
|
|
dnl Python 2.7 and 2.6 are tried in turn.
|
|
dnl NOTE: This case is historical. It is what was done for 7.0/7.1
|
|
dnl but is deprecated.
|
|
dnl /path/to/python/executable -
|
|
dnl Run python-config.py with this version of python to fetch the
|
|
dnl compilation parameters.
|
|
dnl NOTE: This needn't be the real python executable.
|
|
dnl In a cross-compilation scenario (build != host), this could be
|
|
dnl a shell script that provides what python-config.py provides for
|
|
dnl --ldflags, --includes, --exec-prefix.
|
|
dnl python-executable -
|
|
dnl Find python-executable in $PATH, and then handle the same as
|
|
dnl /path/to/python/executable.
|
|
dnl
|
|
dnl If a python program is specified, it is used to run python-config.py and
|
|
dnl is passed --ldflags, --includes, --exec-prefix.
|
|
|
|
AC_ARG_WITH(python,
|
|
AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
|
|
[], [with_python=auto])
|
|
AC_MSG_CHECKING([whether to use python])
|
|
AC_MSG_RESULT([$with_python])
|
|
|
|
if test "${with_python}" = no; then
|
|
AC_MSG_WARN([python support disabled; some features may be unavailable.])
|
|
have_libpython=no
|
|
else
|
|
case "${with_python}" in
|
|
[[\\/]]* | ?:[[\\/]]*)
|
|
if test -d "${with_python}"; then
|
|
# Assume the python binary is ${with_python}/bin/python.
|
|
python_prog="${with_python}/bin/python"
|
|
python_prefix=
|
|
# If python does not exit ${with_python}/bin, then try in
|
|
# ${with_python}. On Windows/MinGW, this is where the Python
|
|
# executable is.
|
|
if test ! -x "${python_prog}"; then
|
|
python_prog="${with_python}/python"
|
|
python_prefix=
|
|
fi
|
|
if test ! -x "${python_prog}"; then
|
|
# Fall back to gdb 7.0/7.1 behaviour.
|
|
python_prog=missing
|
|
python_prefix=${with_python}
|
|
fi
|
|
elif test -x "${with_python}"; then
|
|
# While we can't run python compiled for $host (unless host == build),
|
|
# the user could write a script that provides the needed information,
|
|
# so we support that.
|
|
python_prog=${with_python}
|
|
python_prefix=
|
|
else
|
|
AC_ERROR(invalid value for --with-python)
|
|
fi
|
|
;;
|
|
*/*)
|
|
# Disallow --with-python=foo/bar.
|
|
AC_ERROR(invalid value for --with-python)
|
|
;;
|
|
*)
|
|
# The user has either specified auto, yes, or the name of the python
|
|
# program assumed to be in $PATH.
|
|
python_prefix=
|
|
case "${with_python}" in
|
|
yes | auto)
|
|
if test "${build}" = "${host}"; then
|
|
AC_PATH_PROG(python_prog_path, python, missing)
|
|
if test "${python_prog_path}" = missing; then
|
|
python_prog=missing
|
|
else
|
|
python_prog=${python_prog_path}
|
|
fi
|
|
else
|
|
# Not much we can do except assume the cross-compiler will find the
|
|
# right files.
|
|
python_prog=missing
|
|
fi
|
|
;;
|
|
*)
|
|
# While we can't run python compiled for $host (unless host == build),
|
|
# the user could write a script that provides the needed information,
|
|
# so we support that.
|
|
python_prog="${with_python}"
|
|
AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
|
|
if test "${python_prog_path}" = missing; then
|
|
AC_ERROR(unable to find python program ${python_prog})
|
|
fi
|
|
;;
|
|
esac
|
|
esac
|
|
|
|
if test "${python_prog}" != missing; then
|
|
# We have a python program to use, but it may be too old.
|
|
# Don't flag an error for --with-python=auto (the default).
|
|
have_python_config=yes
|
|
python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
|
|
if test $? != 0; then
|
|
have_python_config=failed
|
|
if test "${with_python}" != auto; then
|
|
AC_ERROR(failure running python-config --includes)
|
|
fi
|
|
fi
|
|
python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
|
|
if test $? != 0; then
|
|
have_python_config=failed
|
|
if test "${with_python}" != auto; then
|
|
AC_ERROR(failure running python-config --ldflags)
|
|
fi
|
|
fi
|
|
python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
|
|
if test $? != 0; then
|
|
have_python_config=failed
|
|
if test "${with_python}" != auto; then
|
|
AC_ERROR(failure running python-config --exec-prefix)
|
|
fi
|
|
fi
|
|
else
|
|
# We do not have a python executable we can use to determine where
|
|
# to find the Python headers and libs. We cannot guess the include
|
|
# path from the python_prefix either, because that include path
|
|
# depends on the Python version. So, there is nothing much we can
|
|
# do except assume that the compiler will be able to find those files.
|
|
python_includes=
|
|
python_libs=
|
|
have_python_config=no
|
|
fi
|
|
|
|
# If we have python-config, only try the configuration it provides.
|
|
# Otherwise fallback on the old way of trying different versions of
|
|
# python in turn.
|
|
|
|
have_libpython=no
|
|
if test "${have_python_config}" = yes; then
|
|
AC_TRY_LIBPYTHON(have_libpython,
|
|
${python_includes}, ${python_libs})
|
|
elif test "${have_python_config}" != failed; then
|
|
if test "${have_libpython}" = no; then
|
|
AC_TRY_LIBPYTHON(have_libpython,
|
|
${python_includes}, "-lpython2.7 ${python_libs}")
|
|
fi
|
|
if test "${have_libpython}" = no; then
|
|
AC_TRY_LIBPYTHON(have_libpython,
|
|
${python_includes}, "-lpython2.6 ${python_libs}")
|
|
fi
|
|
fi
|
|
|
|
if test "${have_libpython}" = no; then
|
|
case "${with_python}" in
|
|
yes)
|
|
AC_MSG_ERROR([python is missing or unusable])
|
|
;;
|
|
auto)
|
|
AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
|
|
;;
|
|
*)
|
|
AC_MSG_ERROR([no usable python found at ${with_python}])
|
|
;;
|
|
esac
|
|
else
|
|
if test -n "${python_prefix}"; then
|
|
AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
|
|
[Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
|
|
GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
dnl Use --with-python-libdir to control where GDB looks for the Python
|
|
dnl libraries.
|
|
dnl
|
|
dnl If this is not given then the default will be based on the value
|
|
dnl passed to --with-python, which is in the python_prefix variable.
|
|
dnl If the --with-python option wasn't given then the default value in
|
|
dnl python_prefix is based on running the 'gdb/python/python-config
|
|
dnl --exec-prefix' script.
|
|
AC_ARG_WITH(python-libdir,
|
|
AS_HELP_STRING([--with-python-libdir@<:@=DIR@:>@], [search for python's libraries in DIR]),
|
|
[],[
|
|
# If no python libdir is specified then select one based on
|
|
# python's prefix path.
|
|
if test -n "${python_prefix}"; then
|
|
with_python_libdir=${python_prefix}/lib
|
|
fi
|
|
])
|
|
|
|
if test "${have_libpython}" != no; then
|
|
AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
|
|
CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
|
|
CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
|
|
CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
|
|
CONFIG_INSTALL="$CONFIG_INSTALL install-python"
|
|
ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
|
|
|
|
if test -n "${with_python_libdir}"; then
|
|
AC_DEFINE_UNQUOTED(WITH_PYTHON_LIBDIR, "${with_python_libdir}",
|
|
[Directory containing Python's standard libraries from --with-python-libdir.])
|
|
GDB_AC_DEFINE_RELOCATABLE(PYTHON_LIBDIR, [python lib], ${with_python_libdir})
|
|
fi
|
|
|
|
# Flags needed to compile Python code (taken from python-config --cflags).
|
|
# We cannot call python-config directly because it will output whatever was
|
|
# used when compiling the Python interpreter itself, including flags which
|
|
# would make the python-related objects be compiled differently from the
|
|
# rest of GDB (e.g., -O2 and -fPIC).
|
|
if test "${GCC}" = yes; then
|
|
tentative_python_cflags="-fno-strict-aliasing -fwrapv"
|
|
# Python headers recommend -DNDEBUG, but it's unclear if that just
|
|
# refers to building Python itself. In release mode, though, it
|
|
# doesn't hurt for the Python code in gdb to follow.
|
|
$development || tentative_python_cflags="$tentative_python_cflags -DNDEBUG"
|
|
fi
|
|
|
|
if test "x${tentative_python_cflags}" != x; then
|
|
AC_MSG_CHECKING(compiler flags for python code)
|
|
for flag in ${tentative_python_cflags}; do
|
|
# Check that the compiler accepts it
|
|
saved_CFLAGS="$CFLAGS"
|
|
CFLAGS="$CFLAGS $flag"
|
|
AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
|
|
CFLAGS="$saved_CFLAGS"
|
|
done
|
|
AC_MSG_RESULT(${PYTHON_CFLAGS})
|
|
fi
|
|
|
|
# On x64 Windows, Python's include headers, and pyconfig.h in
|
|
# particular, rely on MS_WIN64 macro to detect that it's a 64bit
|
|
# version of Windows. Unfortunately, MS_WIN64 is only defined if
|
|
# _MSC_VER, a Microsoft-specific macro, is defined. So, when
|
|
# building on x64 Windows with GCC, we define MS_WIN64 ourselves.
|
|
# The issue was reported to the Python community, but still isn't
|
|
# solved as of 2012-10-02 (http://bugs.python.org/issue4709).
|
|
|
|
case "$gdb_host" in
|
|
mingw64)
|
|
if test "${GCC}" = yes; then
|
|
CPPFLAGS="$CPPFLAGS -DMS_WIN64"
|
|
fi
|
|
;;
|
|
esac
|
|
else
|
|
# Even if Python support is not compiled in, we need to have this file
|
|
# included so that the "python" command, et.al., still exists.
|
|
CONFIG_OBS="$CONFIG_OBS python/python.o"
|
|
CONFIG_SRCS="$CONFIG_SRCS python/python.c"
|
|
fi
|
|
|
|
# Work around Python http://bugs.python.org/issue10112. See also
|
|
# http://bugs.python.org/issue11410, otherwise -Wl,--dynamic-list has
|
|
# no effect. Note that the only test after this that uses Python is
|
|
# the -rdynamic/-Wl,--dynamic-list test, and we do want that one to be
|
|
# run without -export-dynamic too.
|
|
PYTHON_LIBS=`echo $PYTHON_LIBS | sed -e 's/-Xlinker -export-dynamic//'`
|
|
|
|
AC_SUBST(PYTHON_CFLAGS)
|
|
AC_SUBST(PYTHON_CPPFLAGS)
|
|
AC_SUBST(PYTHON_LIBS)
|
|
AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
|
|
|
|
# -------------------- #
|
|
# Check for libguile. #
|
|
# -------------------- #
|
|
|
|
dnl Utility to simplify finding libguile.
|
|
dnl $1 = pkg-config-program
|
|
dnl $2 = space-separate list of guile versions to try
|
|
dnl $3 = yes|no, indicating whether to flag errors or ignore them
|
|
dnl $4 = the shell variable to assign the result to
|
|
dnl If libguile is found we store "yes" here.
|
|
|
|
AC_DEFUN([AC_TRY_LIBGUILE],
|
|
[
|
|
pkg_config=$1
|
|
guile_version_list=$2
|
|
flag_errors=$3
|
|
define([have_libguile_var],$4)
|
|
found_usable_guile=checking
|
|
AC_MSG_CHECKING([for usable guile from ${pkg_config}])
|
|
for guile_version in ${guile_version_list}; do
|
|
${pkg_config} --exists ${guile_version} 2>/dev/null
|
|
if test $? != 0; then
|
|
continue
|
|
fi
|
|
dnl pkg-config says the package exists, so if we get an error now,
|
|
dnl that's bad.
|
|
new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
|
|
if test $? != 0; then
|
|
AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
|
|
fi
|
|
new_LIBS=`${pkg_config} --libs ${guile_version}`
|
|
if test $? != 0; then
|
|
AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
|
|
fi
|
|
dnl If we get this far, great.
|
|
found_usable_guile=${guile_version}
|
|
break
|
|
done
|
|
if test "${found_usable_guile}" = "checking"; then
|
|
if test "${flag_errors}" = "yes"; then
|
|
AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
|
|
else
|
|
found_usable_guile=no
|
|
fi
|
|
fi
|
|
dnl One final sanity check.
|
|
dnl The user could have said --with-guile=python-2.7.
|
|
if test "${found_usable_guile}" != no; then
|
|
save_CPPFLAGS=$CPPFLAGS
|
|
save_LIBS=$LIBS
|
|
CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
|
|
LIBS="$LIBS $new_LIBS"
|
|
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "libguile.h"]],
|
|
[[scm_init_guile ();]])],
|
|
[have_libguile_var=yes
|
|
GUILE_CPPFLAGS=$new_CPPFLAGS
|
|
GUILE_LIBS=$new_LIBS],
|
|
[found_usable_guile=no])
|
|
dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
|
|
AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
|
|
AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
|
|
[Define if Guile supports manual finalization.])
|
|
)
|
|
CPPFLAGS=$save_CPPFLAGS
|
|
LIBS=$save_LIBS
|
|
if test "${found_usable_guile}" = no; then
|
|
if test "${flag_errors}" = yes; then
|
|
AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
|
|
fi
|
|
fi
|
|
fi
|
|
AC_MSG_RESULT([${found_usable_guile}])
|
|
])
|
|
|
|
dnl There are several different values for --with-guile:
|
|
dnl
|
|
dnl no - Don't include guile support.
|
|
dnl yes - Include guile support, error if it's missing.
|
|
dnl The pkg-config program must be in $PATH.
|
|
dnl auto - Same as "yes", but if guile is missing from the system,
|
|
dnl fall back to "no".
|
|
dnl guile-version [guile-version-choice-2 ...] -
|
|
dnl A space-separated list of guile package versions to try.
|
|
dnl These are passed to pkg-config as-is.
|
|
dnl E.g., guile-2.0 or guile-2.2-uninstalled
|
|
dnl This requires making sure PKG_CONFIG_PATH is set appropriately.
|
|
dnl /path/to/pkg-config -
|
|
dnl Use this pkg-config program.
|
|
dnl NOTE: This needn't be the "real" pkg-config program.
|
|
dnl It could be a shell script. It is invoked as:
|
|
dnl pkg-config --exists $version
|
|
dnl pkg-config --cflags $version
|
|
dnl pkg-config --libs $version
|
|
dnl pkg-config --variable guild $version
|
|
dnl The script will be called with $version having each value in
|
|
dnl $try_guile_versions until --exists indicates success.
|
|
|
|
AC_ARG_WITH(guile,
|
|
AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
|
|
[], [with_guile=auto])
|
|
AC_MSG_CHECKING([whether to use guile])
|
|
AC_MSG_RESULT([$with_guile])
|
|
|
|
dnl We check guile with pkg-config.
|
|
AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
|
|
|
|
try_guile_versions="guile-2.0"
|
|
have_libguile=no
|
|
case "${with_guile}" in
|
|
no)
|
|
AC_MSG_WARN([guile support disabled; some features will be unavailable.])
|
|
;;
|
|
auto)
|
|
if test "${pkg_config_prog_path}" = "missing"; then
|
|
AC_MSG_WARN([pkg-config not found, guile support disabled])
|
|
else
|
|
AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
|
|
fi
|
|
;;
|
|
yes)
|
|
if test "${pkg_config_prog_path}" = "missing"; then
|
|
AC_MSG_ERROR([pkg-config not found])
|
|
fi
|
|
AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
|
|
;;
|
|
[[\\/]]* | ?:[[\\/]]*)
|
|
if test -x "${with_guile}"; then
|
|
AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
|
|
else
|
|
AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
|
|
fi
|
|
;;
|
|
"" | */*)
|
|
# Disallow --with=guile="" and --with-guile=foo/bar.
|
|
AC_MSG_ERROR([invalid value for --with-guile])
|
|
;;
|
|
*)
|
|
# A space separate list of guile versions to try, in order.
|
|
if test "${pkg_config_prog_path}" = "missing"; then
|
|
AC_MSG_ERROR([pkg-config not found])
|
|
fi
|
|
AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
|
|
;;
|
|
esac
|
|
|
|
if test "${have_libguile}" != no; then
|
|
dnl Get the name of the 'guild' program.
|
|
case "${with_guile}" in
|
|
[[\\/]]* | ?:[[\\/]]*)
|
|
GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
|
|
;;
|
|
*)
|
|
GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
|
|
;;
|
|
esac
|
|
|
|
dnl Make sure guild can handle this host.
|
|
GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
|
|
dnl If not, disable guile support.
|
|
if test "$ac_cv_guild_ok" = no; then
|
|
have_libguile=no
|
|
AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
|
|
fi
|
|
fi
|
|
|
|
if test "${have_libguile}" != no; then
|
|
AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
|
|
CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
|
|
CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
|
|
CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
|
|
CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
|
|
ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
|
|
|
|
dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
|
|
save_LIBS="$LIBS"
|
|
save_CPPFLAGS="$CPPFLAGS"
|
|
LIBS="$GUILE_LIBS"
|
|
CPPFLAGS="$GUILE_CPPFLAGS"
|
|
AC_CHECK_FUNCS([scm_new_smob])
|
|
LIBS="$save_LIBS"
|
|
CPPFLAGS="$save_CPPFLAGS"
|
|
else
|
|
# Even if Guile support is not compiled in, we need to have these files
|
|
# included.
|
|
CONFIG_OBS="$CONFIG_OBS guile/guile.o"
|
|
CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
|
|
fi
|
|
AC_SUBST(GUILE_CPPFLAGS)
|
|
AC_SUBST(GUILE_LIBS)
|
|
AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
|
|
|
|
# ---------------------------- #
|
|
# Check for source highlight. #
|
|
# ---------------------------- #
|
|
|
|
SRCHIGH_LIBS=
|
|
SRCHIGH_CFLAGS=
|
|
|
|
AC_ARG_ENABLE(source-highlight,
|
|
AS_HELP_STRING([--enable-source-highlight],
|
|
[enable source-highlight for source listings]),
|
|
[case "${enableval}" in
|
|
yes) enable_source_highlight=yes ;;
|
|
no) enable_source_highlight=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for source-highlight option) ;;
|
|
esac],
|
|
[enable_source_highlight=auto])
|
|
|
|
if test "${enable_source_highlight}" != "no"; then
|
|
AC_MSG_CHECKING([for the source-highlight library])
|
|
if test "${pkg_config_prog_path}" = "missing"; then
|
|
AC_MSG_RESULT([no - pkg-config not found])
|
|
if test "${enable_source_highlight}" = "yes"; then
|
|
AC_MSG_ERROR([pkg-config was not found in your system])
|
|
fi
|
|
else
|
|
case "$LDFLAGS" in
|
|
*static-libstdc*)
|
|
AC_MSG_ERROR([source highlight is incompatible with -static-libstdc++; dnl
|
|
either use --disable-source-highlight or dnl
|
|
--without-static-standard-libraries])
|
|
;;
|
|
esac
|
|
|
|
if ${pkg_config_prog_path} --exists source-highlight; then
|
|
SRCHIGH_CFLAGS=`${pkg_config_prog_path} --cflags source-highlight`
|
|
SRCHIGH_LIBS=`${pkg_config_prog_path} --libs source-highlight`
|
|
AC_DEFINE([HAVE_SOURCE_HIGHLIGHT], 1,
|
|
[Define to 1 if the source-highlight library is available])
|
|
AC_MSG_RESULT([yes])
|
|
else
|
|
AC_MSG_RESULT([no])
|
|
if test "${enable_source_highlight}" = "yes"; then
|
|
AC_MSG_ERROR([source-highlight was not found in your system])
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
AC_SUBST(SRCHIGH_LIBS)
|
|
AC_SUBST(SRCHIGH_CFLAGS)
|
|
|
|
# ------------------------- #
|
|
# Checks for header files. #
|
|
# ------------------------- #
|
|
|
|
AC_HEADER_STDC
|
|
# elf_hp.h is for HP/UX 64-bit shared library support.
|
|
AC_CHECK_HEADERS([nlist.h machine/reg.h \
|
|
thread_db.h \
|
|
sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
|
|
sys/resource.h sys/ptrace.h ptrace.h \
|
|
sys/reg.h sys/debugreg.h \
|
|
termios.h elf_hp.h])
|
|
AC_CHECK_HEADERS(sys/user.h, [], [],
|
|
[#if HAVE_SYS_PARAM_H
|
|
# include <sys/param.h>
|
|
#endif
|
|
])
|
|
|
|
AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncursesw/ncurses.h ncurses/ncurses.h ncurses/term.h)
|
|
AC_CHECK_HEADERS(term.h, [], [],
|
|
[#if HAVE_CURSES_H
|
|
# include <curses.h>
|
|
#endif
|
|
])
|
|
|
|
# ------------------------- #
|
|
# Checks for declarations. #
|
|
# ------------------------- #
|
|
|
|
libiberty_INIT
|
|
|
|
AC_CHECK_DECLS([snprintf])
|
|
AM_LC_MESSAGES
|
|
|
|
# ------------------ #
|
|
# Checks for types. #
|
|
# ------------------ #
|
|
|
|
AC_CHECK_TYPES(socklen_t, [], [],
|
|
[#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
])
|
|
|
|
# ------------------------------------- #
|
|
# Checks for compiler characteristics. #
|
|
# ------------------------------------- #
|
|
|
|
AC_C_CONST
|
|
AC_C_INLINE
|
|
AC_C_BIGENDIAN
|
|
|
|
# ------------------------------ #
|
|
# Checks for library functions. #
|
|
# ------------------------------ #
|
|
|
|
AC_CHECK_FUNCS([getuid getgid \
|
|
pipe pread pread64 pwrite resize_term \
|
|
getpgid setsid \
|
|
sigaction sigsetmask socketpair \
|
|
ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
|
|
setrlimit getrlimit posix_madvise waitpid \
|
|
use_default_colors])
|
|
AM_LANGINFO_CODESET
|
|
GDB_AC_COMMON
|
|
|
|
# Check the return and argument types of ptrace.
|
|
GDB_AC_PTRACE
|
|
|
|
dnl AC_FUNC_SETPGRP does not work when cross compiling
|
|
dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
|
|
if test "$cross_compiling" = no; then
|
|
AC_FUNC_SETPGRP
|
|
else
|
|
AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
|
|
[AC_TRY_COMPILE([
|
|
#include <unistd.h>
|
|
], [
|
|
if (setpgrp(1,1) == -1)
|
|
exit (0);
|
|
else
|
|
exit (1);
|
|
], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
|
|
if test "$ac_cv_func_setpgrp_void" = yes; then
|
|
AC_DEFINE(SETPGRP_VOID, 1)
|
|
fi
|
|
fi
|
|
|
|
# Assume we'll default to using the included libiberty regex.
|
|
gdb_use_included_regex=yes
|
|
|
|
# However, if the system regex is GNU regex, then default to *not*
|
|
# using the included regex.
|
|
AC_CACHE_CHECK(
|
|
[for GNU regex],
|
|
[gdb_cv_have_gnu_regex],
|
|
[AC_TRY_COMPILE(
|
|
[#include <gnu-versions.h>],
|
|
[#define REGEX_INTERFACE_VERSION 1
|
|
#if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
|
|
# error "Version mismatch"
|
|
#endif],
|
|
gdb_cv_have_gnu_regex=yes,
|
|
gdb_cv_have_gnu_regex=no)])
|
|
if test "$gdb_cv_have_gnu_regex" = yes; then
|
|
gdb_use_included_regex=no
|
|
fi
|
|
|
|
AC_ARG_WITH(included-regex,
|
|
AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
|
|
gdb_with_regex=$withval,
|
|
gdb_with_regex=$gdb_use_included_regex)
|
|
if test "$gdb_with_regex" = yes; then
|
|
AC_DEFINE(USE_INCLUDED_REGEX, 1,
|
|
[Define to 1 if the regex included in libiberty should be used.])
|
|
fi
|
|
|
|
# Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
|
|
AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
|
|
[#include <sys/param.h>
|
|
#include <sys/proc.h>
|
|
])
|
|
|
|
# See if <sys/lwp.h> defines `struct lwp`.
|
|
AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
|
|
[AC_TRY_COMPILE([#include <sys/param.h>
|
|
#define _KMEMUSER
|
|
#include <sys/lwp.h>], [struct lwp l;],
|
|
gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
|
|
if test "$gdb_cv_struct_lwp" = yes; then
|
|
AC_DEFINE(HAVE_STRUCT_LWP, 1,
|
|
[Define to 1 if your system has struct lwp.])
|
|
fi
|
|
|
|
# See if <machine/reg.h> degines `struct reg'.
|
|
AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
|
|
[AC_TRY_COMPILE([#include <sys/types.h>
|
|
#include <machine/reg.h>], [struct reg r;],
|
|
gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
|
|
if test "$gdb_cv_struct_reg" = yes; then
|
|
AC_DEFINE(HAVE_STRUCT_REG, 1,
|
|
[Define to 1 if your system has struct reg in <machine/reg.h>.])
|
|
fi
|
|
|
|
# See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
|
|
# Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
|
|
AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
|
|
[#include <sys/types.h>
|
|
#include <machine/reg.h>])
|
|
|
|
# See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
|
|
AC_MSG_CHECKING(for PTRACE_GETREGS)
|
|
AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
|
|
[AC_TRY_COMPILE([#include <sys/ptrace.h>],
|
|
[PTRACE_GETREGS;],
|
|
[gdb_cv_have_ptrace_getregs=yes],
|
|
[gdb_cv_have_ptrace_getregs=no])])
|
|
AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
|
|
if test "$gdb_cv_have_ptrace_getregs" = yes; then
|
|
AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
|
|
[Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
|
|
fi
|
|
|
|
# See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
|
|
AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
|
|
AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
|
|
[AC_TRY_COMPILE([#include <sys/ptrace.h>],
|
|
[PTRACE_GETFPXREGS;],
|
|
[gdb_cv_have_ptrace_getfpxregs=yes],
|
|
[gdb_cv_have_ptrace_getfpxregs=no])])
|
|
AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
|
|
if test "$gdb_cv_have_ptrace_getfpxregs" = yes; then
|
|
AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
|
|
[Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
|
|
fi
|
|
|
|
# See if <sys/ptrace.h> provides the PT_GETDBREGS request.
|
|
AC_MSG_CHECKING(for PT_GETDBREGS)
|
|
AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
|
|
[AC_TRY_COMPILE([#include <sys/types.h>
|
|
#include <sys/ptrace.h>],
|
|
[PT_GETDBREGS;],
|
|
[gdb_cv_have_pt_getdbregs=yes],
|
|
[gdb_cv_have_pt_getdbregs=no])])
|
|
AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
|
|
if test "$gdb_cv_have_pt_getdbregs" = yes; then
|
|
AC_DEFINE(HAVE_PT_GETDBREGS, 1,
|
|
[Define if sys/ptrace.h defines the PT_GETDBREGS request.])
|
|
fi
|
|
|
|
# See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
|
|
AC_MSG_CHECKING(for PT_GETXMMREGS)
|
|
AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
|
|
[AC_TRY_COMPILE([#include <sys/types.h>
|
|
#include <sys/ptrace.h>],
|
|
[PT_GETXMMREGS;],
|
|
[gdb_cv_have_pt_getxmmregs=yes],
|
|
[gdb_cv_have_pt_getxmmregs=no])])
|
|
AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
|
|
if test "$gdb_cv_have_pt_getxmmregs" = yes; then
|
|
AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
|
|
[Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
|
|
fi
|
|
|
|
# See if <sys/ptrace.h> supports LWP names on FreeBSD
|
|
# Older FreeBSD versions don't have the pl_tdname member of
|
|
# `struct ptrace_lwpinfo'.
|
|
AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
|
|
[#include <sys/ptrace.h>])
|
|
|
|
# See if <sys/ptrace.h> supports syscall fields on FreeBSD. The
|
|
# pl_syscall_code member of `struct ptrace_lwpinfo' was added in
|
|
# FreeBSD 10.3.
|
|
AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_syscall_code], [], [],
|
|
[#include <sys/ptrace.h>])
|
|
|
|
# Check if the compiler supports the `long long' type.
|
|
|
|
AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
|
|
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
|
|
[[extern long long foo;]],
|
|
[[switch (foo & 2) { case 0: return 1; }]])],
|
|
gdb_cv_c_long_long=yes,
|
|
gdb_cv_c_long_long=no)])
|
|
if test "$gdb_cv_c_long_long" != yes; then
|
|
# libdecnumber requires long long.
|
|
AC_MSG_ERROR([Compiler must support long long for GDB.])
|
|
fi
|
|
|
|
# Check if the compiler and runtime support printing long longs.
|
|
|
|
AC_CACHE_CHECK([for long long support in printf],
|
|
gdb_cv_printf_has_long_long,
|
|
[AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
|
|
[[char buf[32];
|
|
long long l = 0;
|
|
l = (l << 16) + 0x0123;
|
|
l = (l << 16) + 0x4567;
|
|
l = (l << 16) + 0x89ab;
|
|
l = (l << 16) + 0xcdef;
|
|
sprintf (buf, "0x%016llx", l);
|
|
return (strcmp ("0x0123456789abcdef", buf));]])],
|
|
gdb_cv_printf_has_long_long=yes,
|
|
gdb_cv_printf_has_long_long=no,
|
|
gdb_cv_printf_has_long_long=no)])
|
|
if test "$gdb_cv_printf_has_long_long" = yes; then
|
|
AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
|
|
[Define to 1 if the "%ll" format works to print long longs.])
|
|
fi
|
|
|
|
# Check if the compiler and runtime support printing decfloats.
|
|
|
|
AC_CACHE_CHECK([for decfloat support in printf],
|
|
gdb_cv_printf_has_decfloat,
|
|
[AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
|
|
[[char buf[64];
|
|
_Decimal32 d32 = 1.2345df;
|
|
_Decimal64 d64 = 1.2345dd;
|
|
_Decimal128 d128 = 1.2345dl;
|
|
sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
|
|
return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
|
|
gdb_cv_printf_has_decfloat=yes,
|
|
gdb_cv_printf_has_decfloat=no,
|
|
gdb_cv_printf_has_decfloat=no)])
|
|
if test "$gdb_cv_printf_has_decfloat" = yes; then
|
|
AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
|
|
[Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
|
|
fi
|
|
|
|
# Check if the compiler supports the `long double' type. We can't use
|
|
# AC_C_LONG_DOUBLE because that one does additional checks on the
|
|
# constants defined in <float.h> that fail on some systems,
|
|
# e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
|
|
|
|
AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
|
|
[AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
|
|
gdb_cv_c_long_double=yes,
|
|
gdb_cv_c_long_double=no)])
|
|
if test "$gdb_cv_c_long_double" = yes; then
|
|
AC_DEFINE(HAVE_LONG_DOUBLE, 1,
|
|
[Define to 1 if the compiler supports long double.])
|
|
fi
|
|
|
|
# Check if the compiler and runtime support printing long doubles.
|
|
|
|
AC_CACHE_CHECK([for long double support in printf],
|
|
gdb_cv_printf_has_long_double,
|
|
[AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
|
|
[[char buf[16];
|
|
long double f = 3.141592653;
|
|
sprintf (buf, "%Lg", f);
|
|
return (strncmp ("3.14159", buf, 7));]])],
|
|
gdb_cv_printf_has_long_double=yes,
|
|
gdb_cv_printf_has_long_double=no,
|
|
gdb_cv_printf_has_long_double=no)])
|
|
if test "$gdb_cv_printf_has_long_double" = yes; then
|
|
AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
|
|
[Define to 1 if the "%Lg" format works to print long doubles.])
|
|
fi
|
|
|
|
# Check if the compiler and runtime support scanning long doubles.
|
|
|
|
AC_CACHE_CHECK([for long double support in scanf],
|
|
gdb_cv_scanf_has_long_double,
|
|
[AC_RUN_IFELSE([AC_LANG_PROGRAM(
|
|
[[#include <stdio.h>]],
|
|
[[char *buf = "3.141592653";
|
|
long double f = 0;
|
|
sscanf (buf, "%Lg", &f);
|
|
return !(f > 3.14159 && f < 3.14160);]])],
|
|
gdb_cv_scanf_has_long_double=yes,
|
|
gdb_cv_scanf_has_long_double=no,
|
|
gdb_cv_scanf_has_long_double=no)])
|
|
if test "$gdb_cv_scanf_has_long_double" = yes; then
|
|
AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
|
|
[Define to 1 if the "%Lg" format works to scan long doubles.])
|
|
fi
|
|
|
|
case ${host_os} in
|
|
aix*)
|
|
AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
|
|
SAVE_LDFLAGS=$LDFLAGS
|
|
|
|
case $GCC in
|
|
yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
|
|
*) gdb_cv_bigtoc=-bbigtoc ;;
|
|
esac
|
|
|
|
LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
|
|
AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
|
|
LDFLAGS="${SAVE_LDFLAGS}"
|
|
])
|
|
CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
|
|
;;
|
|
esac
|
|
|
|
AC_MSG_CHECKING(for the dynamic export flag)
|
|
dynamic_list=false
|
|
if test "${gdb_native}" = yes; then
|
|
# The dynamically loaded libthread_db needs access to symbols in the gdb
|
|
# executable. Older GNU ld supports --export-dynamic but --dynamic-list
|
|
# may not be supported there.
|
|
old_LDFLAGS="$LDFLAGS"
|
|
# Older GNU ld supports --export-dynamic but --dynamic-list it does not.
|
|
RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
|
|
LDFLAGS="$LDFLAGS $RDYNAMIC"
|
|
if test "${have_libpython}" = no; then
|
|
AC_TRY_LINK([], [], [dynamic_list=true])
|
|
else
|
|
# Workaround http://bugs.python.org/issue4434 where static
|
|
# libpythonX.Y.a would get its symbols required for
|
|
# pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
|
|
# Problem does not happen for the recommended libpythonX.Y.so linkage.
|
|
|
|
# Note the workaround for Python
|
|
# http://bugs.python.org/issue10112 earlier has removed
|
|
# -export-dynamic from PYTHON_LIBS. That's exactly what we want
|
|
# here too, as otherwise it'd make this -Wl,--dynamic-list test
|
|
# always pass.
|
|
old_CFLAGS="$CFLAGS"
|
|
CFLAGS="$CFLAGS $PYTHON_CFLAGS"
|
|
old_LIBS="$LIBS"
|
|
LIBS="$LIBS $PYTHON_LIBS"
|
|
old_CPPFLAGS="$CPPFLAGS"
|
|
CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
|
|
AC_RUN_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[#include "Python.h"],
|
|
[int err;
|
|
Py_Initialize ();
|
|
err = PyRun_SimpleString ("import itertools\n");
|
|
Py_Finalize ();
|
|
return err == 0 ? 0 : 1;])],
|
|
[dynamic_list=true], [], [true])
|
|
LIBS="$old_LIBS"
|
|
CFLAGS="$old_CFLAGS"
|
|
CPPFLAGS="$old_CPPFLAGS"
|
|
fi
|
|
LDFLAGS="$old_LDFLAGS"
|
|
fi
|
|
if $dynamic_list; then
|
|
found="-Wl,--dynamic-list"
|
|
RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
|
|
else
|
|
found="-rdynamic"
|
|
RDYNAMIC="-rdynamic"
|
|
fi
|
|
AC_SUBST(RDYNAMIC)
|
|
AC_MSG_RESULT($found)
|
|
|
|
dnl For certain native configurations, we need to check whether thread
|
|
dnl support can be built in or not.
|
|
dnl
|
|
dnl Note that we only want this if we are both native (host == target),
|
|
dnl and not doing a canadian cross build (build == host).
|
|
|
|
if test "${build}" = "${host}" -a "${host}" = "${target}" ; then
|
|
case ${host_os} in
|
|
aix*)
|
|
AC_MSG_CHECKING(for AiX thread debugging library)
|
|
AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
|
|
[AC_TRY_COMPILE([#include <sys/pthdebug.h>],
|
|
[#ifndef PTHDB_VERSION_3
|
|
#error
|
|
#endif],
|
|
gdb_cv_have_aix_thread_debug=yes,
|
|
gdb_cv_have_aix_thread_debug=no)])
|
|
AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
|
|
if test "$gdb_cv_have_aix_thread_debug" = yes; then
|
|
CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
|
|
CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
|
|
LIBS="$LIBS -lpthdebug"
|
|
|
|
# Older versions of AIX do not provide the declaration for
|
|
# the getthrds function (it appears that it was introduced
|
|
# with AIX 6.x).
|
|
AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
|
|
fi
|
|
;;
|
|
esac
|
|
AC_SUBST(CONFIG_LDFLAGS)
|
|
fi
|
|
|
|
dnl See if we have a thread_db header file that has TD_NOTALLOC and
|
|
dnl other error codes.
|
|
if test "x$ac_cv_header_thread_db_h" = "xyes"; then
|
|
AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
|
|
gdb_cv_thread_db_h_has_td_notalloc,
|
|
AC_TRY_COMPILE(
|
|
[#include <thread_db.h>],
|
|
[int i = TD_NOTALLOC;],
|
|
gdb_cv_thread_db_h_has_td_notalloc=yes,
|
|
gdb_cv_thread_db_h_has_td_notalloc=no
|
|
)
|
|
)
|
|
AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
|
|
gdb_cv_thread_db_h_has_td_version,
|
|
AC_TRY_COMPILE(
|
|
[#include <thread_db.h>],
|
|
[int i = TD_VERSION;],
|
|
gdb_cv_thread_db_h_has_td_version=yes,
|
|
gdb_cv_thread_db_h_has_td_version=no
|
|
)
|
|
)
|
|
AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
|
|
gdb_cv_thread_db_h_has_td_notls,
|
|
AC_TRY_COMPILE(
|
|
[#include <thread_db.h>],
|
|
[int i = TD_NOTLS;],
|
|
gdb_cv_thread_db_h_has_td_notls=yes,
|
|
gdb_cv_thread_db_h_has_td_notls=no
|
|
)
|
|
)
|
|
fi
|
|
if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
|
|
AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
|
|
[Define if <thread_db.h> has the TD_NOTALLOC error code.])
|
|
fi
|
|
if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
|
|
AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
|
|
[Define if <thread_db.h> has the TD_VERSION error code.])
|
|
fi
|
|
if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
|
|
AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
|
|
[Define if <thread_db.h> has the TD_NOTLS error code.])
|
|
fi
|
|
|
|
dnl Set the host's .gdbinit filename.
|
|
case $host_os in
|
|
go32* | *djgpp*)
|
|
gdbinit=gdb.ini
|
|
;;
|
|
*)
|
|
gdbinit=.gdbinit
|
|
;;
|
|
esac
|
|
AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
|
|
|
|
dnl Handle optional features that can be enabled.
|
|
|
|
# Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
|
|
# except that the argument to --with-sysroot is optional.
|
|
# --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
|
|
if test "x$with_sysroot" = xyes; then
|
|
with_sysroot="${exec_prefix}/${target_alias}/sys-root"
|
|
fi
|
|
AC_ARG_WITH(sysroot,
|
|
AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
|
|
[search for usr/lib et al within DIR]),
|
|
[TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
|
|
AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
|
|
[search for usr/lib et al within DIR])
|
|
AC_SUBST(TARGET_SYSTEM_ROOT)
|
|
GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
|
|
|
|
GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
|
|
[automatically load a system-wide gdbinit file],
|
|
[])
|
|
GDB_AC_WITH_DIR(SYSTEM_GDBINIT_DIR, system-gdbinit-dir,
|
|
[automatically load system-wide gdbinit files from this directory],
|
|
[])
|
|
|
|
AM_GDB_WARNINGS
|
|
AM_GDB_UBSAN
|
|
|
|
# In the Cygwin environment, we need some additional flags.
|
|
AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
|
|
[AC_EGREP_CPP(^lose$, [
|
|
#if defined (__CYGWIN__) || defined (__CYGWIN32__)
|
|
lose
|
|
#endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
|
|
|
|
|
|
dnl Figure out which of the many generic ser-*.c files the _host_ supports.
|
|
SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
|
|
case ${host} in
|
|
*go32* ) SER_HARDWIRE=ser-go32.o ;;
|
|
*djgpp* ) SER_HARDWIRE=ser-go32.o ;;
|
|
*mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
|
|
*) SER_HARDWIRE="$SER_HARDWIRE ser-uds.o" ;;
|
|
esac
|
|
AC_SUBST(SER_HARDWIRE)
|
|
|
|
# libreadline needs libuser32.a in a cygwin environment
|
|
WIN32LIBS=
|
|
if test x"$gdb_cv_os_cygwin" = xyes; then
|
|
WIN32LIBS="-luser32"
|
|
case "${target}" in
|
|
*cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
|
|
;;
|
|
esac
|
|
fi
|
|
|
|
# The ser-tcp.c module requires sockets.
|
|
# Note that WIN32APILIBS is set by GDB_AC_COMMON.
|
|
WIN32LIBS="$WIN32LIBS $WIN32APILIBS"
|
|
|
|
# Add ELF support to GDB, but only if BFD includes ELF support.
|
|
GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
|
|
[bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
|
|
if test "$gdb_cv_var_elf" = yes; then
|
|
CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
|
|
AC_DEFINE(HAVE_ELF, 1,
|
|
[Define if ELF support should be included.])
|
|
# -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
|
|
if test "$plugins" = "yes"; then
|
|
AC_SEARCH_LIBS(dlopen, dl)
|
|
fi
|
|
fi
|
|
|
|
# Add macho support to GDB, but only if BFD includes it.
|
|
GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
|
|
[bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
|
|
if test "$gdb_cv_var_macho" = yes; then
|
|
CONFIG_OBS="$CONFIG_OBS machoread.o"
|
|
fi
|
|
|
|
# Add any host-specific objects to GDB.
|
|
CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
|
|
|
|
# If building on ELF, look for lzma support for embedded compressed debug info.
|
|
if test "$gdb_cv_var_elf" = yes; then
|
|
AC_ARG_WITH(lzma,
|
|
AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
|
|
[], [with_lzma=auto])
|
|
AC_MSG_CHECKING([whether to use lzma])
|
|
AC_MSG_RESULT([$with_lzma])
|
|
|
|
if test "${with_lzma}" != no; then
|
|
AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
|
|
[lzma_index_iter iter;
|
|
lzma_index_iter_init (&iter, 0);
|
|
lzma_mf_is_supported (LZMA_MF_HC3);])
|
|
if test "$HAVE_LIBLZMA" != yes; then
|
|
if test "$with_lzma" = yes; then
|
|
AC_MSG_ERROR([missing liblzma for --with-lzma])
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
LIBGUI="../libgui/src/libgui.a"
|
|
GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
|
|
AC_SUBST(LIBGUI)
|
|
AC_SUBST(GUI_CFLAGS_X)
|
|
|
|
WIN32LDAPP=
|
|
AC_SUBST(WIN32LIBS)
|
|
AC_SUBST(WIN32LDAPP)
|
|
|
|
case "${host}" in
|
|
*-*-cygwin* | *-*-mingw* )
|
|
configdir="win"
|
|
;;
|
|
*)
|
|
configdir="unix"
|
|
;;
|
|
esac
|
|
|
|
GDBTKLIBS=
|
|
if test "${enable_gdbtk}" = "yes"; then
|
|
|
|
# Gdbtk must have an absolute path to srcdir in order to run
|
|
# properly when not installed.
|
|
here=`pwd`
|
|
cd ${srcdir}
|
|
GDBTK_SRC_DIR=`pwd`
|
|
cd $here
|
|
|
|
SC_PATH_TCLCONFIG
|
|
|
|
# If $no_tk is nonempty, then we can't do Tk, and there is no
|
|
# point to doing Tcl.
|
|
SC_PATH_TKCONFIG
|
|
|
|
if test -z "${no_tcl}" -a -z "${no_tk}"; then
|
|
SC_LOAD_TCLCONFIG
|
|
|
|
# Check for in-tree tcl
|
|
here=`pwd`
|
|
cd ${srcdir}/..
|
|
topdir=`pwd`
|
|
cd ${here}
|
|
|
|
intree="no"
|
|
if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
|
|
intree="yes"
|
|
fi
|
|
|
|
# Find Tcl private headers
|
|
if test x"${intree}" = xno; then
|
|
CY_AC_TCL_PRIVATE_HEADERS
|
|
TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
|
|
TCL_LIBRARY="${TCL_LIB_SPEC}"
|
|
TCL_DEPS=""
|
|
else
|
|
# If building tcl in the same src tree, private headers
|
|
# are not needed, but we need to be sure to use the right
|
|
# headers library
|
|
TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
|
|
TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
|
|
TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
|
|
fi
|
|
AC_SUBST(TCL_INCLUDE)
|
|
AC_SUBST(TCL_LIBRARY)
|
|
AC_SUBST(TCL_DEPS)
|
|
|
|
SC_LOAD_TKCONFIG
|
|
|
|
# Check for in-tree Tk
|
|
intree="no"
|
|
if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
|
|
intree="yes"
|
|
fi
|
|
|
|
# Find Tk private headers
|
|
if test x"${intree}" = xno; then
|
|
CY_AC_TK_PRIVATE_HEADERS
|
|
TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
|
|
TK_LIBRARY=${TK_LIB_SPEC}
|
|
TK_DEPS=""
|
|
else
|
|
TK_INCLUDE="-I${TK_SRC_DIR}/generic"
|
|
TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
|
|
TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
|
|
fi
|
|
AC_SUBST(TK_INCLUDE)
|
|
AC_SUBST(TK_LIBRARY)
|
|
AC_SUBST(TK_DEPS)
|
|
AC_SUBST(TK_XINCLUDES)
|
|
|
|
ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
|
|
|
|
# Include some libraries that Tcl and Tk want.
|
|
TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
|
|
# Yes, the ordering seems wrong here. But it isn't.
|
|
# TK_LIBS is the list of libraries that need to be linked
|
|
# after Tcl/Tk. Note that this isn't put into LIBS. If it
|
|
# were in LIBS then any link tests after this point would
|
|
# try to include things like `$(LIBGUI)', which wouldn't work.
|
|
GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
|
|
|
|
CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
|
|
CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
|
|
CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
|
|
CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
|
|
CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
|
|
CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
|
|
CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
|
|
|
|
if test x"$gdb_cv_os_cygwin" = xyes; then
|
|
WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
|
|
WIN32LDAPP="-Wl,--subsystem,console"
|
|
CONFIG_OBS="${CONFIG_OBS} gdbres.o"
|
|
fi
|
|
|
|
AC_CONFIG_SUBDIRS(gdbtk)
|
|
fi
|
|
fi
|
|
|
|
AC_SUBST(X_CFLAGS)
|
|
AC_SUBST(X_LDFLAGS)
|
|
AC_SUBST(X_LIBS)
|
|
AC_SUBST(GDBTKLIBS)
|
|
AC_SUBST(GDBTK_CFLAGS)
|
|
AC_SUBST(GDBTK_SRC_DIR)
|
|
|
|
AC_PATH_X
|
|
|
|
# Unlike the sim directory, whether a simulator is linked is controlled by
|
|
# presence of a gdb_sim definition in the target configure.tgt entry.
|
|
# This code just checks for a few cases where we'd like to ignore those
|
|
# definitions, even when they're present in the '.mt' file. These cases
|
|
# are when --disable-sim is specified, or if the simulator directory is
|
|
# not part of the source tree.
|
|
#
|
|
AC_ARG_ENABLE(sim,
|
|
AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
|
|
[echo "enable_sim = $enable_sim";
|
|
echo "enableval = ${enableval}";
|
|
case "${enableval}" in
|
|
yes) ignore_sim=false ;;
|
|
no) ignore_sim=true ;;
|
|
*) ignore_sim=false ;;
|
|
esac],
|
|
[ignore_sim=false])
|
|
|
|
if test ! -d "${srcdir}/../sim"; then
|
|
ignore_sim=true
|
|
fi
|
|
|
|
SIM=
|
|
SIM_OBS=
|
|
if test "${ignore_sim}" = "false"; then
|
|
if test x"${gdb_sim}" != x ; then
|
|
SIM="${gdb_sim}"
|
|
SIM_OBS="remote-sim.o"
|
|
AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
|
|
|
|
# Some tdep code should only be compiled in when the ppc sim is
|
|
# built. PR sim/13418.
|
|
case $target in
|
|
powerpc*-*-*)
|
|
AC_DEFINE(WITH_PPC_SIM, 1, [Define if the PPC simulator is being linked in.])
|
|
;;
|
|
esac
|
|
fi
|
|
fi
|
|
AC_SUBST(SIM)
|
|
AC_SUBST(SIM_OBS)
|
|
|
|
AC_SUBST(ENABLE_CFLAGS)
|
|
AC_SUBST(PROFILE_CFLAGS)
|
|
|
|
AC_SUBST(CONFIG_OBS)
|
|
AC_SUBST(CONFIG_DEPS)
|
|
AC_SUBST(CONFIG_SRCS)
|
|
AC_SUBST(CONFIG_ALL)
|
|
AC_SUBST(CONFIG_CLEAN)
|
|
AC_SUBST(CONFIG_INSTALL)
|
|
AC_SUBST(CONFIG_UNINSTALL)
|
|
|
|
# List of host floatformats.
|
|
AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
|
|
AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
|
|
AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
|
|
|
|
# target_subdir is used by the testsuite to find the target libraries.
|
|
target_subdir=
|
|
if test "${host}" != "${target}"; then
|
|
target_subdir="${target_alias}/"
|
|
fi
|
|
AC_SUBST(target_subdir)
|
|
|
|
# Import nat definitions.
|
|
nat_makefile_frag=/dev/null
|
|
if test "${gdb_native}" = "yes"; then
|
|
. ${srcdir}/configure.nat
|
|
nativefile=$NAT_FILE
|
|
fi
|
|
|
|
AC_SUBST(NAT_FILE)
|
|
AC_SUBST(NATDEPFILES)
|
|
AC_SUBST(NAT_CDEPS)
|
|
AC_SUBST(LOADLIBES)
|
|
AC_SUBST(MH_CFLAGS)
|
|
AC_SUBST(XM_CLIBS)
|
|
AC_SUBST(NAT_GENERATED_FILES)
|
|
AC_SUBST(HAVE_NATIVE_GCORE_HOST)
|
|
AC_SUBST_FILE(nat_makefile_frag)
|
|
|
|
if test x"${gdb_osabi}" != x ; then
|
|
AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
|
|
[Define to the default OS ABI for this configuration.])
|
|
fi
|
|
|
|
# Check for babeltrace and babeltrace-ctf
|
|
AC_ARG_WITH(babeltrace,
|
|
AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
|
|
[], [with_babeltrace=auto])
|
|
AC_MSG_CHECKING([whether to use babeltrace])
|
|
AC_MSG_RESULT([$with_babeltrace])
|
|
|
|
if test "x$with_babeltrace" = "xno"; then
|
|
AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
|
|
else
|
|
# Append -Werror to CFLAGS so that configure can catch the warning
|
|
# "assignment from incompatible pointer type", which is related to
|
|
# the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
|
|
# in GDB, while babeltrace 1.0.3 is broken.
|
|
# AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
|
|
# safe to save and restore CFLAGS here.
|
|
saved_CFLAGS=$CFLAGS
|
|
CFLAGS="$CFLAGS -Werror"
|
|
AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
|
|
[#include <babeltrace/babeltrace.h>
|
|
#include <babeltrace/ctf/events.h>
|
|
#include <babeltrace/ctf/iterator.h>],
|
|
[struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
|
|
struct bt_ctf_event *event = NULL;
|
|
const struct bt_definition *scope;
|
|
|
|
pos->type = BT_SEEK_BEGIN;
|
|
bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
|
|
scope = bt_ctf_get_top_level_scope (event,
|
|
BT_STREAM_EVENT_HEADER);
|
|
bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
|
|
])
|
|
CFLAGS=$saved_CFLAGS
|
|
|
|
if test "$HAVE_LIBBABELTRACE" != yes; then
|
|
if test "$with_babeltrace" = yes; then
|
|
AC_MSG_ERROR([babeltrace is missing or unusable])
|
|
else
|
|
AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
# Check for xxhash
|
|
AC_ARG_WITH(xxhash,
|
|
AC_HELP_STRING([--with-xxhash], [use libxxhash for hashing (faster) (auto/yes/no)]),
|
|
[], [with_xxhash=auto])
|
|
|
|
if test "x$with_xxhash" != "xno"; then
|
|
AC_LIB_HAVE_LINKFLAGS([xxhash], [],
|
|
[#include <xxhash.h>],
|
|
[XXH32("foo", 3, 0);
|
|
])
|
|
if test "$HAVE_LIBXXHASH" != yes; then
|
|
if test "$with_xxhash" = yes; then
|
|
AC_MSG_ERROR([xxhash is missing or unusable])
|
|
fi
|
|
fi
|
|
if test "x$with_xxhash" = "xauto"; then
|
|
with_xxhash="$HAVE_LIBXXHASH"
|
|
fi
|
|
fi
|
|
|
|
AC_MSG_CHECKING([whether to use xxhash])
|
|
AC_MSG_RESULT([$with_xxhash])
|
|
|
|
NM_H=
|
|
rm -f nm.h
|
|
if test "${nativefile}" != ""; then
|
|
case "${nativefile}" in
|
|
nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
|
|
* ) GDB_NM_FILE="${nativefile}"
|
|
esac
|
|
AC_CONFIG_LINKS([nm.h:$GDB_NM_FILE], [echo > stamp-nmh],
|
|
[GDB_NM_FILE=$GDB_NM_FILE])
|
|
AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
|
|
NM_H=nm.h
|
|
fi
|
|
AC_SUBST(GDB_NM_FILE)
|
|
AC_SUBST(NM_H)
|
|
|
|
dnl Add dependency for xsltproc if building with maintainer-mode enabled.
|
|
AC_PATH_PROGS(XSLTPROC, xsltproc, missing)
|
|
if test "x$USE_MAINTAINER_MODE" = xyes; then
|
|
if test "${XSLTPROC}" = missing; then
|
|
AC_ERROR(unable to find xsltproc. maintainer-mode requires xsltproc.)
|
|
fi
|
|
fi
|
|
AC_SUBST(XSLTPROC)
|
|
|
|
dnl Check for exe extension set on certain hosts (e.g. Win32)
|
|
AC_EXEEXT
|
|
|
|
dnl Detect the character set used by this host.
|
|
dnl At the moment, we just assume it's UTF-8.
|
|
AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
|
|
[Define to be a string naming the default host character set.])
|
|
|
|
GDB_AC_SELFTEST([
|
|
CONFIG_OBS="$CONFIG_OBS \$(SELFTESTS_OBS)"
|
|
CONFIG_SRCS="$CONFIG_SRCS \$(SELFTESTS_SRCS)"
|
|
])
|
|
|
|
GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
|
|
GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
|
|
AC_CONFIG_FILES([gcore], [chmod +x gcore])
|
|
AC_CONFIG_FILES([Makefile gdb-gdb.gdb gdb-gdb.py doc/Makefile data-directory/Makefile])
|
|
|
|
AC_OUTPUT
|