gdb/configure.ac - Issue 124383005: GDB 7.6.50

Unified Diff: gdb/configure.ac

Issue 124383005: GDB 7.6.50 (Closed) Base URL: http://git.chromium.org/native_client/nacl-gdb.git@upstream

Patch Set: Created 6 years, 11 months ago

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Index: gdb/configure.ac

diff --git a/gdb/configure.ac b/gdb/configure.ac

index 15c4f163cbf7e2e46c46dd3b500e361f4e1d5dab..7c37f25edbb2b3959a004be490e1f23cb24d6361 100644

--- a/gdb/configure.ac

+++ b/gdb/configure.ac

@@ -1,5 +1,5 @@

dnl Autoconf configure script for GDB, the GNU debugger.

dnl

dnl This file is part of GDB.

dnl

@@ -23,10 +23,8 @@ AC_INIT(main.c)

AC_CONFIG_HEADER(config.h:config.in)

AM_MAINTAINER_MODE

-# Provide more thorough testing by -lmcheck.

-# Set it to 'true' for development snapshots, 'false' for releases or

-# pre-releases.

-development=false

+# Set the 'development' global.

+. $srcdir/development.sh

AC_PROG_CC

AC_USE_SYSTEM_EXTENSIONS

@@ -203,6 +201,7 @@ fi

TARGET_OBS=

all_targets=

+HAVE_NATIVE_GCORE_TARGET=

for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`

@@ -236,6 +235,12 @@ do

if test x${want64} = xfalse; then

. ${srcdir}/../bfd/config.bfd

+ # Check whether this target is native and supports gcore.

+ if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \

+ && $gdb_have_gcore; then

+ HAVE_NATIVE_GCORE_TARGET=1

+ fi

done

@@ -264,6 +269,7 @@ if test x${all_targets} = xtrue; then

AC_SUBST(TARGET_OBS)

+AC_SUBST(HAVE_NATIVE_GCORE_TARGET)

# For other settings, only the main target counts.

gdb_sim=

@@ -478,8 +484,15 @@ AC_CHECK_TOOL(AR, ar)

AC_CHECK_TOOL(DLLTOOL, dlltool)

AC_CHECK_TOOL(WINDRES, windres)

-# Needed for GNU/Hurd.

-AC_CHECK_TOOL(MIG, mig)

+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. #

@@ -645,11 +658,6 @@ AC_SUBST(READLINE_DEPS)

AC_SUBST(READLINE_CFLAGS)

AC_SUBST(READLINE_TEXI_INCFLAG)

-dnl -lmcheck provides cheap enough memory mangling for debugging purposes.

-if $development; then

- AC_CHECK_LIB(mcheck, main)

-fi

# Generate jit-reader.h

# This is typedeffed to GDB_CORE_ADDR in jit-reader.h

@@ -704,6 +712,10 @@ else

+# --------------------- #

+# Check for libpython. #

+# --------------------- #

dnl Utility to simplify finding libpython.

dnl $1 = pythonX.Y

dnl $2 = the shell variable to assign the result to

@@ -994,12 +1006,43 @@ if test "${have_libpython}" != no; then

# unilaterally defined, and that in turn causes _SGIAPI to evaluate

# to false. So, we work around this issue by defining siginfo ourself

# though the command-line.

+ #

+ # 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

irix*) if test "${GCC}" = yes; then

CPPFLAGS="$CPPFLAGS -Dsiginfo=__siginfo"

;;

+ mingw64)

+ if test "${GCC}" = yes; then

+ CPPFLAGS="$CPPFLAGS -DMS_WIN64"

+ fi

+ ;;

esac

+ # Note that "python -m threading" cannot be used to check for

+ # threading support due to a bug in Python 2.7.3

+ # (http://bugs.python.org/issue15567).

+ AC_MSG_CHECKING(whether python supports threads)

+ saved_CPPFLAGS="${CPPFLAGS}"

+ CPPFLAGS="${PYTHON_CPPFLAGS}"

+ # Note that the test is reversed so that python_has_threads=yes on

+ # unexpected failures.

+ AC_PREPROC_IFELSE(AC_LANG_SOURCE([[

+#include <Python.h>

+#ifdef WITH_THREAD

+# error

+#endif

+ ]]), [python_has_threads=no], [python_has_threads=yes])

+ AC_MSG_RESULT(${python_has_threads})

+ CPPFLAGS="${saved_CPPFLAGS}"

else

# Even if Python support is not compiled in, we need to have these files

# included.

@@ -1011,33 +1054,43 @@ AC_SUBST(PYTHON_CFLAGS)

AC_SUBST(PYTHON_CPPFLAGS)

AC_SUBST(PYTHON_LIBS)

+# --------------------- #

+# Check for libmcheck. #

+# --------------------- #

+# Enable -lmcheck by default (it provides cheap-enough memory mangling),

+# but turn it off if Python is enabled with threads, since -lmcheck is

+# not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),

+# and for releases.

+if test $ "${have_libpython}" = "no" -o "${python_has_threads}" = "no" $ \

+ && $development; then

+ libmcheck_default=yes

+else

+ libmcheck_default=no

+fi

+GDB_AC_LIBMCHECK(${libmcheck_default})

+if test "$ENABLE_LIBMCHECK" = "yes" \

+ -a "${have_libpython}" != "no" \

+ -a "${python_has_threads}" = "yes" ; then

+ AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)

+fi

# ------------------------- #

# Checks for header files. #

# ------------------------- #

-AC_HEADER_DIRENT

-AC_HEADER_STAT

AC_HEADER_STDC

# elf_hp.h is for HP/UX 64-bit shared library support.

-# FIXME: kettenis/20030102: In most cases we include these (ctype.h, time.h)

-# unconditionally, so what's the point in checking these?

AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \

- thread_db.h signal.h stddef.h \

- stdlib.h string.h memory.h strings.h sys/fault.h \

+ thread_db.h \

+ sys/fault.h \

sys/file.h sys/filio.h sys/ioctl.h sys/param.h \

sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \

sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \

- sys/types.h sys/wait.h wait.h termios.h termio.h \

- sgtty.h unistd.h elf_hp.h ctype.h time.h locale.h \

- dlfcn.h sys/socket.h sys/un.h])

-AC_CHECK_HEADERS(link.h, [], [],

-[#if HAVE_SYS_TYPES_H

-# include <sys/types.h>

-#endif

-#if HAVE_NLIST_H

-# include <nlist.h>

-#endif

-])

+ termios.h termio.h \

+ sgtty.h elf_hp.h \

+ dlfcn.h])

AC_CHECK_HEADERS(sys/proc.h, [], [],

[#if HAVE_SYS_PARAM_H

# include <sys/param.h>

@@ -1071,8 +1124,7 @@ AC_CHECK_HEADERS(term.h, [], [],

# Checks for declarations. #

# ------------------------- #

-AC_CHECK_DECLS([free, malloc, realloc, strerror, strstr, getopt,

- snprintf, vsnprintf])

+AC_CHECK_DECLS([free, malloc, realloc, snprintf])

AM_LC_MESSAGES

# ----------------------- #

@@ -1109,17 +1161,17 @@ AC_FUNC_VFORK

AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid getgid \

pipe poll pread pread64 pwrite readlink resize_term \

sbrk setpgid setpgrp setsid \

- sigaction sigprocmask sigsetmask socketpair syscall \

+ sigaction sigprocmask sigsetmask socketpair \

ttrace wborder wresize setlocale iconvlist libiconvlist btowc \

- setrlimit getrlimit posix_madvise waitpid lstat])

+ setrlimit getrlimit posix_madvise waitpid lstat \

+ ptrace64])

AM_LANGINFO_CODESET

+GDB_AC_COMMON

# Check the return and argument types of ptrace. No canned test for

# this, so roll our own.

gdb_ptrace_headers='

-#if HAVE_SYS_TYPES_H

-# include <sys/types.h>

-#endif

+#include <sys/types.h>

#if HAVE_SYS_PTRACE_H

# include <sys/ptrace.h>

#endif

@@ -1152,7 +1204,7 @@ AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [

for gdb_arg1 in 'int' 'long'; do

for gdb_arg2 in 'pid_t' 'int' 'long'; do

for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do

- for gdb_arg4 in 'int' 'long'; do

+ for gdb_arg4 in 'int' 'long' 'void *'; do

AC_TRY_COMPILE($gdb_ptrace_headers, [

extern $gdb_cv_func_ptrace_ret

ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);

@@ -1179,6 +1231,8 @@ IFS=$ac_save_IFS

shift

AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],

[Define to the type of arg 3 for ptrace.])

+AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG4, $[4],

+ [Define to the type of arg 4 for ptrace.])

if test -n "$[5]"; then

AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],

[Define to the type of arg 5 for ptrace.])

@@ -1334,19 +1388,17 @@ if test $gdb_cv_have_pt_getxmmregs = yes; then

[Define if sys/ptrace.h defines the PT_GETXMMREGS request.])

-# Detect which type of /proc is in use, such as for Unixware or Solaris.

+# Detect which type of /proc is in use, such as for Solaris.

if test "${target}" = "${host}"; then

case "${host}" in

- *-*-unixware* | *-*-sysv4.2* | *-*-sysv5* | *-*-interix* )

+ *-*-sysv4.2* | *-*-sysv5* )

AC_DEFINE(NEW_PROC_API, 1,

- [Define if you want to use new multi-fd /proc interface

- (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])

+ [Define if you want to use new multi-fd /proc interface.])

;;

*-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)

AC_DEFINE(NEW_PROC_API, 1,

- [Define if you want to use new multi-fd /proc interface

- (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])

+ [Define if you want to use new multi-fd /proc interface.])

;;

mips-sgi-irix5*)

# Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.

@@ -1358,14 +1410,11 @@ if test "${target}" = "${host}"; then

if test "$ac_cv_header_sys_procfs_h" = yes; then

- BFD_HAVE_SYS_PROCFS_TYPE(pstatus_t)

- BFD_HAVE_SYS_PROCFS_TYPE(prrun_t)

BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)

BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)

BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)

BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)

BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)

- BFD_HAVE_SYS_PROCFS_TYPE(prfpregset32_t)

BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)

BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)

BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)

@@ -1400,99 +1449,6 @@ if test "$ac_cv_header_sys_procfs_h" = yes; then

[Define if the prfpregset_t type is broken.])

- dnl Check for PIOCSET ioctl entry

- AC_MSG_CHECKING(for PIOCSET ioctl entry in sys/procfs.h)

- AC_CACHE_VAL(gdb_cv_have_procfs_piocset,

- [AC_TRY_COMPILE([#include <unistd.h>

-#include <sys/types.h>

-#include <sys/procfs.h>

-], [

- int dummy;;

- dummy = ioctl(0, PIOCSET, &dummy);

- ],

- gdb_cv_have_procfs_piocset=yes, gdb_cv_have_procfs_piocset=no)])

- AC_MSG_RESULT($gdb_cv_have_procfs_piocset)

- if test $gdb_cv_have_procfs_piocset = yes; then

- AC_DEFINE(HAVE_PROCFS_PIOCSET, 1,

- [Define if ioctl argument PIOCSET is available.])

- fi

-fi

-dnl For native ports (host == target), check to see what kind of

-dnl legacy link.h support is needed. (See solib-legacy.c.)

-if test ${host} = ${target} ; then

- dnl Check for struct link_map with l_ members which are indicative

- dnl of SVR4-like shared libraries

- AC_MSG_CHECKING(for member l_addr in struct link_map)

- AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_l_members,

- [AC_TRY_COMPILE([#include <link.h>],

- [struct link_map lm; (void) lm.l_addr;],

- gdb_cv_have_struct_link_map_with_l_members=yes,

- gdb_cv_have_struct_link_map_with_l_members=no)])

- AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_l_members)

- if test $gdb_cv_have_struct_link_map_with_l_members = yes; then

- AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS,1,

- [Define if <link.h> exists and defines struct link_map which has

- members with an ``l_'' prefix. (For Solaris, SVR4, and

- SVR4-like systems.)])

- fi

- dnl Check for struct link_map with lm_ members which are indicative

- dnl of SunOS-like shared libraries

- AC_MSG_CHECKING(for member lm_addr in struct link_map)

- AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_lm_members,

- [AC_TRY_COMPILE([#include <sys/types.h>

-#include <link.h>],

- [struct link_map lm; (void) lm.lm_addr;],

- gdb_cv_have_struct_link_map_with_lm_members=yes,

- gdb_cv_have_struct_link_map_with_lm_members=no)])

- AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_lm_members)

- if test $gdb_cv_have_struct_link_map_with_lm_members = yes; then

- AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS, 1,

- [Define if <link.h> exists and defines struct link_map which has

- members with an ``lm_'' prefix. (For SunOS.)])

- fi

- dnl Check for struct so_map with som_ members which are found on

- dnl some *BSD systems.

- AC_MSG_CHECKING(for member som_addr in struct so_map)

- AC_CACHE_VAL(gdb_cv_have_struct_so_map_with_som_members,

- [AC_TRY_COMPILE([#include <sys/types.h>

-#ifdef HAVE_NLIST_H

-#include <nlist.h>

-#endif

-#include <link.h>],

- [struct so_map lm; (void) lm.som_addr;],

- gdb_cv_have_struct_so_map_with_som_members=yes,

- gdb_cv_have_struct_so_map_with_som_members=no)])

- AC_MSG_RESULT($gdb_cv_have_struct_so_map_with_som_members)

- if test $gdb_cv_have_struct_so_map_with_som_members = yes; then

- AC_DEFINE(HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS, 1,

- [Define if <link.h> exists and defines a struct so_map which has

- members with an ``som_'' prefix. (Found on older *BSD systems.)])

- fi

- dnl Check for struct link_map32 type, which allows a 64-bit Solaris

- dnl debugger to debug a 32-bit Solaris app with 32-bit shared libraries.

- AC_MSG_CHECKING(for struct link_map32 in sys/link.h)

- AC_CACHE_VAL(gdb_cv_have_struct_link_map32,

- [AC_TRY_COMPILE([#define _SYSCALL32

-#include <sys/link.h>], [struct link_map32 l;],

- gdb_cv_have_struct_link_map32=yes,

- gdb_cv_have_struct_link_map32=no)])

- AC_MSG_RESULT($gdb_cv_have_struct_link_map32)

- if test $gdb_cv_have_struct_link_map32 = yes; then

- AC_DEFINE(HAVE_STRUCT_LINK_MAP32, 1,

- [Define if <sys/link.h> has struct link_map32])

- AC_DEFINE(_SYSCALL32, 1,

- [Define if <sys/link.h> has link_map32 (solaris sparc-64 target)])

- fi

# Check if the compiler supports the `long long' type.

@@ -1503,9 +1459,9 @@ AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,

[[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

- AC_DEFINE(CC_HAS_LONG_LONG, 1,

- [Define to 1 if the compiler supports long long.])

+if test $gdb_cv_c_long_long != yes; then

+ # libdecnumber requires long long.

+ AC_MSG_ERROR([Compiler must support long long for GDB.])

# Check if the compiler and runtime support printing long longs.

@@ -1634,6 +1590,8 @@ if test "${gdb_native}" = yes; then

# Problem does not happen for the recommended libpythonX.Y.so linkage.

old_CFLAGS="$CFLAGS"

CFLAGS="$CFLAGS $PYTHON_CFLAGS"

+ old_LIBS="$LIBS"

+ LIBS="$LIBS $PYTHON_LIBS"

AC_RUN_IFELSE(

AC_LANG_PROGRAM(

[#include "]${have_libpython}[/Python.h"],

@@ -1643,6 +1601,7 @@ if test "${gdb_native}" = yes; then

Py_Finalize ();

return err == 0 ? 0 : 1;]),

[dynamic_list=true], [], [true])

+ LIBS="$old_LIBS"

CFLAGS="$old_CFLAGS"

LDFLAGS="$old_LDFLAGS"

@@ -1782,8 +1741,10 @@ if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then

)

dnl See if we can issue tkill syscall.

-if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then

- AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])

+if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes"; then

+ AC_CHECK_FUNC(syscall,

+ AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])

+ )

dnl Check if we can disable the virtual address space randomization.

@@ -1809,6 +1770,17 @@ then

[Define if you support the personality syscall.])

+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,

@@ -1848,21 +1820,18 @@ if test "${ERROR_ON_WARNING}" = yes ; then

WERROR_CFLAGS="-Werror"

-# The entries after -Wno-pointer-sign are disabled warnings which may

-# be enabled in the future, which can not currently be used to build

-# GDB.

-# NOTE: If you change this list, remember to update

-# gdb/doc/gdbint.texinfo.

build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \

--Wformat-nonliteral -Wno-pointer-sign \

+-Wpointer-sign \

-Wno-unused -Wunused-value -Wunused-function \

-Wno-switch -Wno-char-subscripts -Wmissing-prototypes \

--Wdeclaration-after-statement"

+-Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type \

+-Wold-style-declaration -Wold-style-definition"

# Enable -Wno-format by default when using gcc on mingw since many

# GCC versions complain about %I64.

case "${host}" in

*-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;

+ *) build_warnings="$build_warnings -Wformat-nonliteral" ;;

esac

AC_ARG_ENABLE(build-warnings,

@@ -1916,7 +1885,7 @@ AC_SUBST(WERROR_CFLAGS)

# In the Cygwin environment, we need some additional flags.

AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,

-[AC_EGREP_CPP(lose, [

+[AC_EGREP_CPP(^lose$, [

#if defined (__CYGWIN__) || defined (__CYGWIN32__)

lose

#endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])

@@ -1955,44 +1924,56 @@ esac

AC_SUBST(WIN32LIBS)

# Add ELF support to GDB, but only if BFD includes ELF support.

-OLD_CFLAGS=$CFLAGS

-OLD_LDFLAGS=$LDFLAGS

-OLD_LIBS=$LIBS

-# Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS

-# points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We

-# always want our bfd.

-CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS"

-LDFLAGS="-L../bfd -L../libiberty $LDFLAGS"

-intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`

-# -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.

-if test "$plugins" = "yes"; then

- LIBS="-ldl $LIBS"

-fi

-LIBS="-lbfd -liberty $intl $LIBS"

-AC_CACHE_CHECK([for ELF support in BFD], gdb_cv_var_elf,

-[AC_TRY_LINK(

-[#include <stdlib.h>

-#include "bfd.h"

-#include "elf-bfd.h"

-],

-[bfd *abfd = NULL; bfd_get_elf_phdr_upper_bound (abfd); ],

-gdb_cv_var_elf=yes, gdb_cv_var_elf=no)])

+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"

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

- OLD_LIBS="-ldl $OLD_LIBS"

+ AC_SEARCH_LIBS(dlopen, dl)

-CFLAGS=$OLD_CFLAGS

-LDFLAGS=$OLD_LDFLAGS

-LIBS=$OLD_LIBS

+# 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 SOM support to GDB, but only if BFD includes it.

+GDB_AC_CHECK_BFD([for SOM support in BFD], gdb_cv_var_som,

+ [bfd_som_attach_aux_hdr (NULL, 0, NULL)], som.h)

+if test $gdb_cv_var_som = yes; then

+ CONFIG_OBS="$CONFIG_OBS somread.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

LIBGUI="../libgui/src/libgui.a"

GUI_CFLAGS_X="-I${srcdir}/../libgui/src"

AC_SUBST(LIBGUI)

@@ -2246,6 +2227,47 @@ if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then

AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)

+# 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;

+ 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

# If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link

# to an empty version.

@@ -2274,6 +2296,20 @@ 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.])

+# Undo the $ec_script escaping suitable for Makefile.

+transform=`echo "$program_transform_name" | sed -e 's/[\\$][\\$]/\\$/g'`

+GDB_TRANSFORM_NAME=`echo gdb | sed -e "$transform"`

+if test "x$GDB_TRANSFORM_NAME" = x; then

+ GDB_TRANSFORM_NAME=gdb

+fi

+AC_SUBST(GDB_TRANSFORM_NAME)

+GCORE_TRANSFORM_NAME=`echo gcore | sed -e "$transform"`

+if test "x$GCORE_TRANSFORM_NAME" = x; then

+ GCORE_TRANSFORM_NAME=gcore

+fi

+AC_SUBST(GCORE_TRANSFORM_NAME)

+AC_CONFIG_FILES([gcore], [chmod +x gcore])

AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile,

[

case x$CONFIG_HEADERS in

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