* acconfig.h (HAVE_PREAD64): Add.

	* configure.in: Check for pread64.
	* config.in: Regenerated.
	* configure: Regenerated.
	* lin-lwp.c (lin_lwp_xfer_memory): Call linux_proc_xfer_memory.
	* linux-proc.c (linux_proc_xfer_memory): New function.
	* config/nm-linux.h (linux_proc_xfer_memory): Add prototype.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index d110b821dfee4b2f5619903e9456d534456ef7d4..9791ad486dccd2daa5f3bc85d057d6f958fb0865 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,13 @@
+2002-11-25  Daniel Jacobowitz  <drow@mvista.com>
+
+       * acconfig.h (HAVE_PREAD64): Add.
+       * configure.in: Check for pread64.
+       * config.in: Regenerated.
+       * configure: Regenerated.
+       * lin-lwp.c (lin_lwp_xfer_memory): Call linux_proc_xfer_memory.
+       * linux-proc.c (linux_proc_xfer_memory): New function.
+       * config/nm-linux.h (linux_proc_xfer_memory): Add prototype.
+
 2002-11-25  Christopher Faylor  <cgf@redhat.com>
 
        * win32-nat.c (child_attach): Reset saw_create counter or subsequent

diff --git a/gdb/acconfig.h b/gdb/acconfig.h
index 619b0ae97b4ffef37e7316f10cd86fd55ab1a553..88c15e1263a48ae81295358016f1ec7735bf9b92 100644 (file)
--- a/gdb/acconfig.h
+++ b/gdb/acconfig.h
@@ -49,6 +49,9 @@
 /* Define if <sys/procfs.h> has pr_siginfo64_t */
 #undef HAVE_PR_SIGINFO64_T
 
+/* Define if the pread64 function is available.  */
+#undef HAVE_PREAD64
+
 /* Define if <link.h> exists and defines struct link_map which has
    members with an ``l_'' prefix.  (For Solaris, SVR4, and
    SVR4-like systems.) */

diff --git a/gdb/config.in b/gdb/config.in
index 8c1c7bf356ea74695cb69ff06d5f524e0c9a5f72..2ddfa643c11ba2a47f63513b3b397c9d3a65d703 100644 (file)
--- a/gdb/config.in
+++ b/gdb/config.in
@@ -1,4 +1,4 @@
-/* config.in.  Generated automatically from configure.in by autoheader 2.13.  */
+/* config.in.  Generated automatically from configure.in by autoheader.  */
 
 /* Define if on AIX 3.
    System headers sometimes define this.
@@ -80,6 +80,9 @@
 /* Define if your struct reg has r_gs.  */
 #undef HAVE_STRUCT_REG_R_GS
 
+/* Define if the pread64 function is available.  */
+#undef HAVE_PREAD64
+
 /* Define if <link.h> exists and defines struct link_map which has
    members with an ``l_'' prefix.  (For Solaris, SVR4, and
    SVR4-like systems.) */

diff --git a/gdb/config/nm-linux.h b/gdb/config/nm-linux.h
index a2d429214d9f214c4cea1faa3eddf6bfe6997b4d..114acd8b67c289e47f6c0dabba1019e84f79bb04 100644 (file)
--- a/gdb/config/nm-linux.h
+++ b/gdb/config/nm-linux.h
@@ -71,4 +71,7 @@ extern void lin_thread_get_thread_signals (sigset_t *mask);
 /* Override child_pid_to_exec_file in 'inftarg.c'.  */
 #define CHILD_PID_TO_EXEC_FILE
 
-
+struct mem_attrib;
+extern int linux_proc_xfer_memory (CORE_ADDR addr, char *myaddr, int len,
+                                  int write, struct mem_attrib *attrib,
+                                  struct target_ops *target);

diff --git a/gdb/configure b/gdb/configure
index 9befcab3d808b3aa23d362a3ea4a2bc0d165853e..5f82a3f52c47dfc146eeb4af5f5b831409d9284c 100755 (executable)
--- a/gdb/configure
+++ b/gdb/configure
@@ -6544,6 +6544,36 @@ EOF
    
 fi
 
+if test $host = $target; then
+  case $target in
+    *-linux*)
+      save_CFLAGS=$CFLAGS
+      CFLAGS="$CFLAGS -D_BSD_SOURCE -D_XOPEN_SOURCE=500 -D_LARGEFILE64_SOURCE"
+      cat > conftest.$ac_ext <<EOF
+#line 6554 "configure"
+#include "confdefs.h"
+#include <unistd.h>
+int main() {
+pread64 (0, NULL, 0, 0);
+; return 0; }
+EOF
+if { (eval echo configure:6561: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  ENABLE_CFLAGS="$ENABLE_CFLAGS -D_BSD_SOURCE -D_XOPEN_SOURCE=500 -D_LARGEFILE64_SOURCE"
+                  cat >> confdefs.h <<\EOF
+#define HAVE_PREAD64 1
+EOF
+
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+fi
+rm -f conftest*
+      CFLAGS=$save_CFLAGS
+      ;;
+  esac
+fi
+
 
 # Check whether --enable-gdbcli or --disable-gdbcli was given.
 if test "${enable_gdbcli+set}" = set; then
@@ -6735,7 +6765,7 @@ WERROR_CFLAGS=""
 if test "x${build_warnings}" != x -a "x$GCC" = xyes
 then
     echo $ac_n "checking compiler warning flags""... $ac_c" 1>&6
-echo "configure:6739: checking compiler warning flags" >&5
+echo "configure:6769: checking compiler warning flags" >&5
     # Separate out the -Werror flag as some files just cannot be
     # compiled with it enabled.
     for w in ${build_warnings}; do
@@ -6745,14 +6775,14 @@ echo "configure:6739: checking compiler warning flags" >&5
            saved_CFLAGS="$CFLAGS"
            CFLAGS="$CFLAGS $w"
            cat > conftest.$ac_ext <<EOF
-#line 6749 "configure"
+#line 6779 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:6756: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6786: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   WARN_CFLAGS="${WARN_CFLAGS} $w"
 else
@@ -6812,12 +6842,12 @@ fi
 
 if test $want_included_regex = false; then
   echo $ac_n "checking for GNU regex""... $ac_c" 1>&6
-echo "configure:6816: checking for GNU regex" >&5
+echo "configure:6846: checking for GNU regex" >&5
   if eval "test \"`echo '$''{'gdb_cv_have_gnu_regex'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6821 "configure"
+#line 6851 "configure"
 #include "confdefs.h"
 #include <gnu-versions.h>
 #include <sys/types.h>
@@ -6829,7 +6859,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:6833: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6863: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gdb_cv_have_gnu_regex=yes
 else
@@ -6858,12 +6888,12 @@ fi
 
 # In the Cygwin environment, we need some additional flags.
 echo $ac_n "checking for cygwin""... $ac_c" 1>&6
-echo "configure:6862: checking for cygwin" >&5
+echo "configure:6892: checking for cygwin" >&5
 if eval "test \"`echo '$''{'gdb_cv_os_cygwin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6867 "configure"
+#line 6897 "configure"
 #include "confdefs.h"
 
 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
@@ -6901,7 +6931,7 @@ if test x$gdb_cv_os_cygwin = xyes; then
 else
   TERM_LIB=
   echo $ac_n "checking for tgetent in -lncurses""... $ac_c" 1>&6
-echo "configure:6905: checking for tgetent in -lncurses" >&5
+echo "configure:6935: checking for tgetent in -lncurses" >&5
 ac_lib_var=`echo ncurses'_'tgetent | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6909,7 +6939,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lncurses  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6913 "configure"
+#line 6943 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6920,7 +6950,7 @@ int main() {
 tgetent()
 ; return 0; }
 EOF
-if { (eval echo configure:6924: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6954: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6939,7 +6969,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for tgetent in -lHcurses""... $ac_c" 1>&6
-echo "configure:6943: checking for tgetent in -lHcurses" >&5
+echo "configure:6973: checking for tgetent in -lHcurses" >&5
 ac_lib_var=`echo Hcurses'_'tgetent | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6947,7 +6977,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lHcurses  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6951 "configure"
+#line 6981 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6958,7 +6988,7 @@ int main() {
 tgetent()
 ; return 0; }
 EOF
-if { (eval echo configure:6962: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6992: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6977,7 +7007,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for tgetent in -ltermlib""... $ac_c" 1>&6
-echo "configure:6981: checking for tgetent in -ltermlib" >&5
+echo "configure:7011: checking for tgetent in -ltermlib" >&5
 ac_lib_var=`echo termlib'_'tgetent | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6985,7 +7015,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ltermlib  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6989 "configure"
+#line 7019 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6996,7 +7026,7 @@ int main() {
 tgetent()
 ; return 0; }
 EOF
-if { (eval echo configure:7000: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7030: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7015,7 +7045,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for tgetent in -ltermcap""... $ac_c" 1>&6
-echo "configure:7019: checking for tgetent in -ltermcap" >&5
+echo "configure:7049: checking for tgetent in -ltermcap" >&5
 ac_lib_var=`echo termcap'_'tgetent | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7023,7 +7053,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ltermcap  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7027 "configure"
+#line 7057 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -7034,7 +7064,7 @@ int main() {
 tgetent()
 ; return 0; }
 EOF
-if { (eval echo configure:7038: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7068: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7053,7 +7083,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for tgetent in -lcurses""... $ac_c" 1>&6
-echo "configure:7057: checking for tgetent in -lcurses" >&5
+echo "configure:7087: checking for tgetent in -lcurses" >&5
 ac_lib_var=`echo curses'_'tgetent | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7061,7 +7091,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lcurses  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7065 "configure"
+#line 7095 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -7072,7 +7102,7 @@ int main() {
 tgetent()
 ; return 0; }
 EOF
-if { (eval echo configure:7076: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7106: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7091,7 +7121,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for tgetent in -lterminfo""... $ac_c" 1>&6
-echo "configure:7095: checking for tgetent in -lterminfo" >&5
+echo "configure:7125: checking for tgetent in -lterminfo" >&5
 ac_lib_var=`echo terminfo'_'tgetent | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7099,7 +7129,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lterminfo  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7103 "configure"
+#line 7133 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -7110,7 +7140,7 @@ int main() {
 tgetent()
 ; return 0; }
 EOF
-if { (eval echo configure:7114: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7144: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7275,7 +7305,7 @@ if test "${with_tclconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Tcl configuration""... $ac_c" 1>&6
-echo "configure:7279: checking for Tcl configuration" >&5
+echo "configure:7309: checking for Tcl configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_tclconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7383,7 +7413,7 @@ if test "${with_tkconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Tk configuration""... $ac_c" 1>&6
-echo "configure:7387: checking for Tk configuration" >&5
+echo "configure:7417: checking for Tk configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_tkconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7492,7 +7522,7 @@ fi
 
 no_tcl=true
 echo $ac_n "checking for Tcl private headers. dir=${configdir}""... $ac_c" 1>&6
-echo "configure:7496: checking for Tcl private headers. dir=${configdir}" >&5
+echo "configure:7526: checking for Tcl private headers. dir=${configdir}" >&5
 # Check whether --with-tclinclude or --without-tclinclude was given.
 if test "${with_tclinclude+set}" = set; then
   withval="$with_tclinclude"
@@ -7558,17 +7588,17 @@ fi
 if test x"${ac_cv_c_tclh}" = x ; then
    ac_safe=`echo "tclInt.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for tclInt.h""... $ac_c" 1>&6
-echo "configure:7562: checking for tclInt.h" >&5
+echo "configure:7592: checking for tclInt.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7567 "configure"
+#line 7597 "configure"
 #include "confdefs.h"
 #include <tclInt.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:7572: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7602: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -7628,7 +7658,7 @@ fi
 #
 no_tk=true
 echo $ac_n "checking for Tk private headers""... $ac_c" 1>&6
-echo "configure:7632: checking for Tk private headers" >&5
+echo "configure:7662: checking for Tk private headers" >&5
 # Check whether --with-tkinclude or --without-tkinclude was given.
 if test "${with_tkinclude+set}" = set; then
   withval="$with_tkinclude"
@@ -7694,17 +7724,17 @@ fi
 if test x"${ac_cv_c_tkh}" = x ; then
    ac_safe=`echo "tk.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for tk.h""... $ac_c" 1>&6
-echo "configure:7698: checking for tk.h" >&5
+echo "configure:7728: checking for tk.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7703 "configure"
+#line 7733 "configure"
 #include "confdefs.h"
 #include <tk.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:7708: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7738: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -7750,7 +7780,7 @@ fi
 
           
 echo $ac_n "checking for Itcl private headers. srcdir=${srcdir}""... $ac_c" 1>&6
-echo "configure:7754: checking for Itcl private headers. srcdir=${srcdir}" >&5
+echo "configure:7784: checking for Itcl private headers. srcdir=${srcdir}" >&5
 if test x"${ac_cv_c_itclh}" = x ; then
   for i in ${srcdir}/../itcl ${srcdir}/../../itcl ${srcdir}/../../../itcl ${srcdir}/../itcl/itcl; do
     if test -f $i/generic/itcl.h ; then
@@ -7773,7 +7803,7 @@ fi
 
           
 echo $ac_n "checking for Itk private headers. srcdir=${srcdir}""... $ac_c" 1>&6
-echo "configure:7777: checking for Itk private headers. srcdir=${srcdir}" >&5
+echo "configure:7807: checking for Itk private headers. srcdir=${srcdir}" >&5
 if test x"${ac_cv_c_itkh}" = x ; then
   for i in ${srcdir}/../itcl ${srcdir}/../../itcl ${srcdir}/../../../itcl ${srcdir}/../itcl/itk; do
     if test -f $i/generic/itk.h ; then
@@ -7796,7 +7826,7 @@ fi
 
           
 echo $ac_n "checking for Tix private headers. srcdir=${srcdir}""... $ac_c" 1>&6
-echo "configure:7800: checking for Tix private headers. srcdir=${srcdir}" >&5
+echo "configure:7830: checking for Tix private headers. srcdir=${srcdir}" >&5
 if test x"${ac_cv_c_tixh}" = x ; then
   for i in ${srcdir}/../tix ${srcdir}/../../tix ${srcdir}/../../../tix ; do
     if test -f $i/generic/tix.h ; then
@@ -7848,7 +7878,7 @@ if test "${with_itclconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Itcl configuration""... $ac_c" 1>&6
-echo "configure:7852: checking for Itcl configuration" >&5
+echo "configure:7882: checking for Itcl configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_itclconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7951,7 +7981,7 @@ if test "${with_itkconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Itk configuration""... $ac_c" 1>&6
-echo "configure:7955: checking for Itk configuration" >&5
+echo "configure:7985: checking for Itk configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_itkconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8054,7 +8084,7 @@ if test "${with_tixconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Tix configuration""... $ac_c" 1>&6
-echo "configure:8058: checking for Tix configuration" >&5
+echo "configure:8088: checking for Tix configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_tixconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8200,7 +8230,7 @@ fi
 # Uses ac_ vars as temps to allow command line to override cache and checks.
 # --without-x overrides everything else, but does not touch the cache.
 echo $ac_n "checking for X""... $ac_c" 1>&6
-echo "configure:8204: checking for X" >&5
+echo "configure:8234: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -8262,12 +8292,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 8266 "configure"
+#line 8296 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:8271: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:8301: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -8336,14 +8366,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 8340 "configure"
+#line 8370 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:8347: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8377: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   LIBS="$ac_save_LIBS"
 # We can link X programs with no special library path.
@@ -8635,7 +8665,7 @@ fi
 # ``gdbserver'' can only be built in a native configuration.
 if test x"${target}" = x"${host}"; then
     echo $ac_n "checking whether gdbserver is supported on this host""... $ac_c" 1>&6
-echo "configure:8639: checking whether gdbserver is supported on this host" >&5
+echo "configure:8669: checking whether gdbserver is supported on this host" >&5
     if test x"${build_gdbserver}" = xyes ; then
        configdirs="${configdirs} gdbserver"
        SUBDIRS="${SUBDIRS} gdbserver"
@@ -8697,7 +8727,7 @@ fi
 
 
 echo $ac_n "checking whether ln -s works""... $ac_c" 1>&6
-echo "configure:8701: checking whether ln -s works" >&5
+echo "configure:8731: checking whether ln -s works" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_LN_S'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8721,12 +8751,12 @@ fi
 
 
 echo $ac_n "checking for Cygwin environment""... $ac_c" 1>&6
-echo "configure:8725: checking for Cygwin environment" >&5
+echo "configure:8755: checking for Cygwin environment" >&5
 if eval "test \"`echo '$''{'ac_cv_cygwin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8730 "configure"
+#line 8760 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -8737,7 +8767,7 @@ int main() {
 return __CYGWIN__;
 ; return 0; }
 EOF
-if { (eval echo configure:8741: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8771: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_cygwin=yes
 else
@@ -8754,19 +8784,19 @@ echo "$ac_t""$ac_cv_cygwin" 1>&6
 CYGWIN=
 test "$ac_cv_cygwin" = yes && CYGWIN=yes
 echo $ac_n "checking for mingw32 environment""... $ac_c" 1>&6
-echo "configure:8758: checking for mingw32 environment" >&5
+echo "configure:8788: checking for mingw32 environment" >&5
 if eval "test \"`echo '$''{'ac_cv_mingw32'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8763 "configure"
+#line 8793 "configure"
 #include "confdefs.h"
 
 int main() {
 return __MINGW32__;
 ; return 0; }
 EOF
-if { (eval echo configure:8770: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8800: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_mingw32=yes
 else
@@ -8785,7 +8815,7 @@ test "$ac_cv_mingw32" = yes && MINGW32=yes
 
 
 echo $ac_n "checking for executable suffix""... $ac_c" 1>&6
-echo "configure:8789: checking for executable suffix" >&5
+echo "configure:8819: checking for executable suffix" >&5
 if eval "test \"`echo '$''{'ac_cv_exeext'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8795,7 +8825,7 @@ else
   rm -f conftest*
   echo 'int main () { return 0; }' > conftest.$ac_ext
   ac_cv_exeext=
-  if { (eval echo configure:8799: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+  if { (eval echo configure:8829: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
     for file in conftest.*; do
       case $file in
       *.c | *.o | *.obj | *.ilk | *.pdb) ;;
@@ -9106,7 +9136,7 @@ cat >> $CONFIG_STATUS <<\EOF
 
 # Split the substitutions into bite-sized pieces for seds with
 # small command number limits, like on Digital OSF/1 and HP-UX.
-ac_max_sed_cmds=60 # Maximum number of lines to put in a sed script.
+ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
 ac_file=1 # Number of current file.
 ac_beg=1 # First line for current file.
 ac_end=$ac_max_sed_cmds # Line after last line for current file.

diff --git a/gdb/configure.in b/gdb/configure.in
index edc72c3aa949a003538a57e02c966918e953d1e1..61bf5e7d757b187a7da419e22d433824af559f4d 100644 (file)
--- a/gdb/configure.in
+++ b/gdb/configure.in
@@ -600,6 +600,23 @@ if test ${build} = ${host} -a ${host} = ${target} ; then
    AC_SUBST(CONFIG_LDFLAGS)
 fi
 
+dnl linux-proc.c wants to use pread64, which may require special CFLAGS
+dnl -D_BSD_SOURCE is normally assumed but we have to specify it because of
+dnl -D_XOPEN_SOURCE=500.
+if test $host = $target; then
+  case $target in
+    *-linux*)
+      save_CFLAGS=$CFLAGS
+      CFLAGS="$CFLAGS -D_BSD_SOURCE -D_XOPEN_SOURCE=500 -D_LARGEFILE64_SOURCE"
+      AC_TRY_LINK([#include <unistd.h>],
+                 [pread64 (0, NULL, 0, 0);],
+                 [ENABLE_CFLAGS="$ENABLE_CFLAGS -D_BSD_SOURCE -D_XOPEN_SOURCE=500 -D_LARGEFILE64_SOURCE"
+                  AC_DEFINE(HAVE_PREAD64)], [])
+      CFLAGS=$save_CFLAGS
+      ;;
+  esac
+fi
+
 dnl The CLI cannot be disabled yet, but may be in the future  
 
 dnl Handle CLI sub-directory configury.

diff --git a/gdb/lin-lwp.c b/gdb/lin-lwp.c
index cd577fbe3a0134ad589cdb73ae9577f12956e4d9..74e5d85f73e67c5e21d8f1ecc1908aee4319c3c7 100644 (file)
--- a/gdb/lin-lwp.c
+++ b/gdb/lin-lwp.c
@@ -1383,7 +1383,9 @@ lin_lwp_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
   if (is_lwp (inferior_ptid))
     inferior_ptid = pid_to_ptid (GET_LWP (inferior_ptid));
 
-  xfer = child_xfer_memory (memaddr, myaddr, len, write, attrib, target);
+  xfer = linux_proc_xfer_memory (memaddr, myaddr, len, write, attrib, target);
+  if (xfer == 0)
+    xfer = child_xfer_memory (memaddr, myaddr, len, write, attrib, target);
 
   do_cleanups (old_chain);
   return xfer;

diff --git a/gdb/linux-proc.c b/gdb/linux-proc.c
index f76def3a3a2c7f9f3373b7d09f6e7341452b1c85..2f43ae61f97004f3bfd968271037e8af05935052 100644 (file)
--- a/gdb/linux-proc.c
+++ b/gdb/linux-proc.c
@@ -25,6 +25,8 @@
 #include <sys/procfs.h>        /* for elf_gregset etc. */
 #include <sys/stat.h>  /* for struct stat */
 #include <ctype.h>     /* for isdigit */
+#include <unistd.h>    /* for open, pread64 */
+#include <fcntl.h>     /* for O_RDONLY */
 #include "regcache.h"  /* for registers_changed */
 #include "gregset.h"   /* for gregset */
 #include "gdbcore.h"   /* for get_exec_file */
@@ -33,6 +35,10 @@
 #include "cli/cli-decode.h"    /* for add_info */
 #include "gdb_string.h"
 
+#ifndef O_LARGEFILE
+#define O_LARGEFILE 0
+#endif
+
 /* Function: child_pid_to_exec_file
  *
  * Accepts an integer pid
@@ -577,3 +583,46 @@ Specify any of the following keywords for detailed info:\n\
   status   -- list a different bunch of random process info.\n\
   all      -- list all available /proc info.");
 }
+
+int linux_proc_xfer_memory (CORE_ADDR addr, char *myaddr, int len, int write,
+                           struct mem_attrib *attrib,
+                           struct target_ops *target)
+{
+  int fd, ret;
+  char filename[64];
+
+  if (write)
+    return 0;
+
+  /* Don't bother for one word.  */
+  if (len < 3 * sizeof (long))
+    return 0;
+
+  /* We could keep this file open and cache it - possibly one
+     per thread.  That requires some juggling, but is even faster.  */
+  sprintf (filename, "/proc/%d/mem", PIDGET (inferior_ptid));
+  fd = open (filename, O_RDONLY | O_LARGEFILE);
+  if (fd == -1)
+    return 0;
+
+  /* If pread64 is available, use it.  It's faster if the kernel
+     supports it (only one syscall), and it's 64-bit safe even
+     on 32-bit platforms (for instance, SPARC debugging a SPARC64
+     application).
+
+     We play some autoconf and CFLAGS games to get this declaration
+     exposed: -D_XOPEN_SOURCE=500 -D_LARGEFILE64_SOURCE.  And then
+     a -D_BSD_SOURCE to counteract the defaults for _XOPEN_SOURCE.  */
+#ifdef HAVE_PREAD64
+  if (pread64 (fd, myaddr, len, addr) != len)
+#else
+  if (lseek (fd, addr, SEEK_SET) == -1
+      || read (fd, myaddr, len) != len)
+#endif
+    ret = 0;
+  else
+    ret = len;
+
+  close (fd);
+  return ret;
+}