[2038] 2009-03-22 Pavel Roskin <address@hidden>

[Pavel Roskin]

Revision: 2038
          http://svn.sv.gnu.org/viewvc/?view=rev&root=grub&revision=2038
Author:   proski
Date:     2009-03-22 00:31:30 +0000 (Sun, 22 Mar 2009)
Log Message:
-----------
2009-03-22  Pavel Roskin  <address@hidden>

        * aclocal.m4 (grub_CHECK_START_SYMBOL): Remove.
        * configure.ac: Don't call grub_CHECK_START_SYMBOL.
        * kern/i386/pc/startup.S: Use _start instead of START_SYMBOL.

Modified Paths:
--------------
    trunk/grub2/ChangeLog
    trunk/grub2/aclocal.m4
    trunk/grub2/config.h.in
    trunk/grub2/configure
    trunk/grub2/configure.ac
    trunk/grub2/kern/i386/pc/startup.S

Modified: trunk/grub2/ChangeLog
===================================================================
--- trunk/grub2/ChangeLog       2009-03-21 23:02:12 UTC (rev 2037)
+++ trunk/grub2/ChangeLog       2009-03-22 00:31:30 UTC (rev 2038)
@@ -1,3 +1,9 @@
+2009-03-22  Pavel Roskin  <address@hidden>
+
+       * aclocal.m4 (grub_CHECK_START_SYMBOL): Remove.
+       * configure.ac: Don't call grub_CHECK_START_SYMBOL.
+       * kern/i386/pc/startup.S: Use _start instead of START_SYMBOL.
+
 2009-03-21  Vladimir Serbinenko  <address@hidden>
 
        Bugfixes in multiboot for bugs uncovered by solaris kernel.

Modified: trunk/grub2/aclocal.m4
===================================================================
--- trunk/grub2/aclocal.m4      2009-03-21 23:02:12 UTC (rev 2037)
+++ trunk/grub2/aclocal.m4      2009-03-22 00:31:30 UTC (rev 2038)
@@ -224,39 +224,6 @@
 AC_MSG_RESULT([$grub_cv_i386_asm_absolute_without_asterisk])])
 
 
-dnl Check what symbol is defined as a start symbol.
-dnl Written by Yoshinori K. Okuji.
-AC_DEFUN(grub_CHECK_START_SYMBOL,
-[AC_REQUIRE([AC_PROG_CC])
-AC_MSG_CHECKING([if start is defined by the compiler])
-AC_CACHE_VAL(grub_cv_check_start_symbol,
-[AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
-               [[asm ("incl start")]])],
-               [grub_cv_check_start_symbol=yes],
-               [grub_cv_check_start_symbol=no])])
-
-AC_MSG_RESULT([$grub_cv_check_start_symbol])
-
-AC_MSG_CHECKING([if _start is defined by the compiler])
-AC_CACHE_VAL(grub_cv_check_uscore_start_symbol,
-[AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
-               [[asm ("incl _start")]])],
-               [grub_cv_check_uscore_start_symbol=yes],
-               [grub_cv_check_uscore_start_symbol=no])])
-
-AC_MSG_RESULT([$grub_cv_check_uscore_start_symbol])
-
-AH_TEMPLATE([START_SYMBOL], [Define it to either start or _start])
-
-if test "x$grub_cv_check_start_symbol" = xyes; then
-  AC_DEFINE([START_SYMBOL], [start])
-elif test "x$grub_cv_check_uscore_start_symbol" = xyes; then
-  AC_DEFINE([START_SYMBOL], [_start])
-else
-  AC_MSG_ERROR([neither start nor _start is defined])
-fi
-])
-
 dnl Check what symbol is defined as a bss start symbol.
 dnl Written by Michael Hohmoth and Yoshinori K. Okuji.
 AC_DEFUN(grub_CHECK_BSS_START_SYMBOL,

Modified: trunk/grub2/config.h.in
===================================================================
--- trunk/grub2/config.h.in     2009-03-21 23:02:12 UTC (rev 2037)
+++ trunk/grub2/config.h.in     2009-03-22 00:31:30 UTC (rev 2038)
@@ -109,9 +109,6 @@
 /* The size of `void *', as computed by sizeof. */
 #undef SIZEOF_VOID_P
 
-/* Define it to either start or _start */
-#undef START_SYMBOL
-
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
 

Modified: trunk/grub2/configure
===================================================================
--- trunk/grub2/configure       2009-03-21 23:02:12 UTC (rev 2037)
+++ trunk/grub2/configure       2009-03-22 00:31:30 UTC (rev 2038)
@@ -7270,134 +7270,6 @@
   fi
   if test "x$platform" = xpc; then
 
-{ echo "$as_me:$LINENO: checking if start is defined by the compiler" >&5
-echo $ECHO_N "checking if start is defined by the compiler... $ECHO_C" >&6; }
-if test "${grub_cv_check_start_symbol+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.  */
-
-int
-main ()
-{
-asm ("incl start")
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$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 $ac_status); } && {
-        test -z "$ac_c_werror_flag" ||
-        test ! -s conftest.err
-       } && test -s conftest$ac_exeext &&
-       $as_test_x conftest$ac_exeext; then
-  grub_cv_check_start_symbol=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-       grub_cv_check_start_symbol=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-
-
-{ echo "$as_me:$LINENO: result: $grub_cv_check_start_symbol" >&5
-echo "${ECHO_T}$grub_cv_check_start_symbol" >&6; }
-
-{ echo "$as_me:$LINENO: checking if _start is defined by the compiler" >&5
-echo $ECHO_N "checking if _start is defined by the compiler... $ECHO_C" >&6; }
-if test "${grub_cv_check_uscore_start_symbol+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.  */
-
-int
-main ()
-{
-asm ("incl _start")
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$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 $ac_status); } && {
-        test -z "$ac_c_werror_flag" ||
-        test ! -s conftest.err
-       } && test -s conftest$ac_exeext &&
-       $as_test_x conftest$ac_exeext; then
-  grub_cv_check_uscore_start_symbol=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-       grub_cv_check_uscore_start_symbol=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
-fi
-
-
-{ echo "$as_me:$LINENO: result: $grub_cv_check_uscore_start_symbol" >&5
-echo "${ECHO_T}$grub_cv_check_uscore_start_symbol" >&6; }
-
-
-
-
-if test "x$grub_cv_check_start_symbol" = xyes; then
-  cat >>confdefs.h <<\_ACEOF
-#define START_SYMBOL start
-_ACEOF
-
-elif test "x$grub_cv_check_uscore_start_symbol" = xyes; then
-  cat >>confdefs.h <<\_ACEOF
-#define START_SYMBOL _start
-_ACEOF
-
-else
-  { { echo "$as_me:$LINENO: error: neither start nor _start is defined" >&5
-echo "$as_me: error: neither start nor _start is defined" >&2;}
-   { (exit 1); exit 1; }; }
-fi
-
-
 { echo "$as_me:$LINENO: checking if __bss_start is defined by the compiler" >&5
 echo $ECHO_N "checking if __bss_start is defined by the compiler... $ECHO_C" 
>&6; }
 if test "${grub_cv_check_uscore_uscore_bss_start_symbol+set}" = set; then

Modified: trunk/grub2/configure.ac
===================================================================
--- trunk/grub2/configure.ac    2009-03-21 23:02:12 UTC (rev 2037)
+++ trunk/grub2/configure.ac    2009-03-22 00:31:30 UTC (rev 2038)
@@ -383,7 +383,6 @@
     CFLAGS="$TARGET_CFLAGS -nostdlib $TARGET_IMG_LDFLAGS_AC 
-Wl,-Ttext,8000,--defsym,___main=0x8100"
   fi
   if test "x$platform" = xpc; then
-    grub_CHECK_START_SYMBOL
     grub_CHECK_BSS_START_SYMBOL
     grub_CHECK_END_SYMBOL
   fi

Modified: trunk/grub2/kern/i386/pc/startup.S
===================================================================
--- trunk/grub2/kern/i386/pc/startup.S  2009-03-21 23:02:12 UTC (rev 2037)
+++ trunk/grub2/kern/i386/pc/startup.S  2009-03-22 00:31:30 UTC (rev 2038)
@@ -202,7 +202,7 @@
 #if defined(ENABLE_LZO)
        /* decompress the compressed part and put the result at 1MB */
        movl    $GRUB_MEMORY_MACHINE_DECOMPRESSION_ADDR, %esi
-       movl    $(START_SYMBOL + GRUB_KERNEL_MACHINE_RAW_SIZE), %edi
+       movl    $(_start + GRUB_KERNEL_MACHINE_RAW_SIZE), %edi
 
        pushl   %esi
        pushl   EXT_C(grub_compressed_size)
@@ -214,7 +214,7 @@
        cld
 #elif defined(ENABLE_LZMA)
        movl    $GRUB_MEMORY_MACHINE_DECOMPRESSION_ADDR, %edi
-       movl    $(START_SYMBOL + GRUB_KERNEL_MACHINE_RAW_SIZE), %esi
+       movl    $(_start + GRUB_KERNEL_MACHINE_RAW_SIZE), %esi
        pushl   %edi
        pushl   %esi
        movl    EXT_C(grub_kernel_image_size), %ecx
@@ -239,7 +239,7 @@
        movl    EXT_C(grub_total_module_size), %ecx
        movl    EXT_C(grub_kernel_image_size), %esi
        addl    %ecx, %esi
-       addl    $START_SYMBOL, %esi
+       addl    $_start, %esi
        decl    %esi
        movl    $END_SYMBOL, %edi
        addl    %ecx, %edi
@@ -282,7 +282,7 @@
        .long   0
 
 VARIABLE(grub_start_addr)
-       .long   START_SYMBOL
+       .long   _start
 
 VARIABLE(grub_end_addr)
        .long   END_SYMBOL