From 01fe12f6fb039ef2841440b214d9fb905767a14d Mon Sep 17 00:00:00 2001 From: Joel Brobecker Date: Wed, 19 Sep 2007 22:00:34 +0000 Subject: [PATCH] * configure.ac: Add check for "etext". * configure, config.in: Regenerate. * maint.c (TEXTEND): Only define if either _etext or etext are available. Disable the profiling functionality if TEXTEND is not defined. --- gdb/ChangeLog | 8 ++++++ gdb/config.in | 3 +++ gdb/configure | 63 ++++++++++++++++++++++++++++++++++++++++++++++++ gdb/configure.ac | 10 ++++++++ gdb/maint.c | 6 ++--- 5 files changed, 87 insertions(+), 3 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index cd8491ba0d5..c8486c5d299 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +2007-09-19 Joel Brobecker + + * configure.ac: Add check for "etext". + * configure, config.in: Regenerate. + * maint.c (TEXTEND): Only define if either _etext or etext + are available. + Disable the profiling functionality if TEXTEND is not defined. + 2007-09-19 Daniel Jacobowitz * mips-tdep.c (mips_stub_frame_cache): Correct the saved return diff --git a/gdb/config.in b/gdb/config.in index 1534afe8275..f58b70a6c14 100644 --- a/gdb/config.in +++ b/gdb/config.in @@ -113,6 +113,9 @@ /* Define if ELF support should be included. */ #undef HAVE_ELF +/* Define to 1 if your system has the etext variable. */ +#undef HAVE_ETEXT + /* Define to 1 if you have the `fork' function. */ #undef HAVE_FORK diff --git a/gdb/configure b/gdb/configure index 7b90943a15f..1dd4fb466b3 100755 --- a/gdb/configure +++ b/gdb/configure @@ -4277,6 +4277,69 @@ cat >>confdefs.h <<\_ACEOF #define HAVE__ETEXT 1 _ACEOF +fi +echo "$as_me:$LINENO: checking for etext" >&5 +echo $ECHO_N "checking for etext... $ECHO_C" >&6 +if test "${ac_cv_var_etext+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include +extern char etext; + +int +main () +{ +free (&etext); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext conftest$ac_exeext +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest$ac_exeext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_cv_var_etext=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_cv_var_etext=no +fi +rm -f conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: $ac_cv_var_etext" >&5 +echo "${ECHO_T}$ac_cv_var_etext" >&6 +if test $ac_cv_var_etext = yes; then + +cat >>confdefs.h <<\_ACEOF +#define HAVE_ETEXT 1 +_ACEOF + fi if test "$enable_profiling" = yes ; then if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then diff --git a/gdb/configure.ac b/gdb/configure.ac index 6a150aa534a..eea0bc29623 100644 --- a/gdb/configure.ac +++ b/gdb/configure.ac @@ -242,6 +242,16 @@ 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 +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) diff --git a/gdb/maint.c b/gdb/maint.c index 2f431fd405e..5f3338ef165 100644 --- a/gdb/maint.c +++ b/gdb/maint.c @@ -638,16 +638,16 @@ show_maintenance_profile_p (struct ui_file *file, int from_tty, fprintf_filtered (file, _("Internal profiling is %s.\n"), value); } -#if defined (HAVE_MONSTARTUP) && defined (HAVE__MCLEANUP) - #ifdef HAVE__ETEXT extern char _etext; #define TEXTEND &_etext -#else +#elif defined (HAVE_ETEXT) extern char etext; #define TEXTEND &etext #endif +#if defined (HAVE_MONSTARTUP) && defined (HAVE__MCLEANUP) && defined (TEXTEND) + static int profiling_state; static void -- 2.30.2