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Include alloca.h unconditionally
Since gnulib alloca module was imported, we can include alloca.h in both gdb and gdbserver unconditionally, so this patch adds inclusion of alloca.h in common-defs.h. This patch also removes AC_FUNC_ALLOCA in configure.ac because we don't need to check alloca any more. This patch below is removed in fact. [RFA/commit] include alloca.h if available. https://www.sourceware.org/ml/gdb-patches/2010-08/msg00566.html Since alloca.h is from gnulib now, we don't have to check malloc.h in configure and include malloc.h in code. This patch also remove them too. gdb: 2014-11-21 Yao Qi <yao@codesourcery.com> * common/common-defs.h: Include alloca.h * configure.ac: Don't invoke AC_FUNC_ALLOCA. * configure: Re-generated. * defs.h: Remove code handling alloca. * utils.c (gdb_realpath): Don't check HAVE_ALLOCA is defined or not. gdb/gdbserver: 2014-11-21 Yao Qi <yao@codesourcery.com> * configure.ac: Don't invoke AC_FUNC_ALLOCA. (AC_CHECK_HEADERS): Remove malloc.h. * configure: Re-generated. * config.in: Re-generated. * server.h: Don't include alloca.h and malloc.h. * gdbreplay.c: Don't check HAVE_ALLOCA_H is defined. Don't include malloc.h.
This commit is contained in:
Yao Qi
190
gdb/configure
vendored
190
gdb/configure
vendored
@ -10072,196 +10072,6 @@ $as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h
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# Checks for library functions. #
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# ------------------------------ #
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# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
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# for constant arguments. Useless!
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working alloca.h" >&5
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$as_echo_n "checking for working alloca.h... " >&6; }
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if test "${ac_cv_working_alloca_h+set}" = set; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <alloca.h>
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int
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main ()
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{
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char *p = (char *) alloca (2 * sizeof (int));
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if (p) return 0;
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_link "$LINENO"; then :
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ac_cv_working_alloca_h=yes
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else
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ac_cv_working_alloca_h=no
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext conftest.$ac_ext
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_alloca_h" >&5
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$as_echo "$ac_cv_working_alloca_h" >&6; }
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if test $ac_cv_working_alloca_h = yes; then
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$as_echo "#define HAVE_ALLOCA_H 1" >>confdefs.h
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for alloca" >&5
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$as_echo_n "checking for alloca... " >&6; }
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if test "${ac_cv_func_alloca_works+set}" = set; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#ifdef __GNUC__
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# define alloca __builtin_alloca
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#else
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# ifdef _MSC_VER
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# include <malloc.h>
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# define alloca _alloca
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# else
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# ifdef HAVE_ALLOCA_H
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# include <alloca.h>
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# else
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# ifdef _AIX
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#pragma alloca
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# else
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# ifndef alloca /* predefined by HP cc +Olibcalls */
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char *alloca ();
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# endif
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# endif
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# endif
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# endif
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#endif
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int
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main ()
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{
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char *p = (char *) alloca (1);
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if (p) return 0;
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_link "$LINENO"; then :
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ac_cv_func_alloca_works=yes
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else
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ac_cv_func_alloca_works=no
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext conftest.$ac_ext
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_alloca_works" >&5
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$as_echo "$ac_cv_func_alloca_works" >&6; }
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if test $ac_cv_func_alloca_works = yes; then
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$as_echo "#define HAVE_ALLOCA 1" >>confdefs.h
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else
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# The SVR3 libPW and SVR4 libucb both contain incompatible functions
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# that cause trouble. Some versions do not even contain alloca or
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# contain a buggy version. If you still want to use their alloca,
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# use ar to extract alloca.o from them instead of compiling alloca.c.
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ALLOCA=\${LIBOBJDIR}alloca.$ac_objext
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$as_echo "#define C_ALLOCA 1" >>confdefs.h
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether \`alloca.c' needs Cray hooks" >&5
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$as_echo_n "checking whether \`alloca.c' needs Cray hooks... " >&6; }
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if test "${ac_cv_os_cray+set}" = set; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#if defined CRAY && ! defined CRAY2
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webecray
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#else
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wenotbecray
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#endif
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_ACEOF
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if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
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$EGREP "webecray" >/dev/null 2>&1; then :
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ac_cv_os_cray=yes
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else
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ac_cv_os_cray=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_os_cray" >&5
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$as_echo "$ac_cv_os_cray" >&6; }
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if test $ac_cv_os_cray = yes; then
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for ac_func in _getb67 GETB67 getb67; do
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as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
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ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
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eval as_val=\$$as_ac_var
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if test "x$as_val" = x""yes; then :
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cat >>confdefs.h <<_ACEOF
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#define CRAY_STACKSEG_END $ac_func
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_ACEOF
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break
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fi
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done
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking stack direction for C alloca" >&5
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$as_echo_n "checking stack direction for C alloca... " >&6; }
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if test "${ac_cv_c_stack_direction+set}" = set; then :
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$as_echo_n "(cached) " >&6
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else
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if test "$cross_compiling" = yes; then :
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ac_cv_c_stack_direction=0
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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$ac_includes_default
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int
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find_stack_direction ()
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{
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static char *addr = 0;
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auto char dummy;
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if (addr == 0)
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{
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addr = &dummy;
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return find_stack_direction ();
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}
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else
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return (&dummy > addr) ? 1 : -1;
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}
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int
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main ()
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{
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return find_stack_direction () < 0;
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}
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_ACEOF
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if ac_fn_c_try_run "$LINENO"; then :
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ac_cv_c_stack_direction=1
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else
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ac_cv_c_stack_direction=-1
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fi
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rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
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conftest.$ac_objext conftest.beam conftest.$ac_ext
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_stack_direction" >&5
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$as_echo "$ac_cv_c_stack_direction" >&6; }
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cat >>confdefs.h <<_ACEOF
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#define STACK_DIRECTION $ac_cv_c_stack_direction
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_ACEOF
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fi
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for ac_header in stdlib.h unistd.h
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do :
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as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
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