configure.in (mips*-*-*): Add a test to see if MIPS libgloss linker scripts use START...

2002-07-29  Chris Demetriou  <cgd@broadcom.com>

        * configure.in (mips*-*-*): Add a test to see if MIPS libgloss
        linker scripts use STARTUP directives consistently.
        * configure: Regenerate.
        * config.in: Regenerate.
        * config/mips/elf.h (STARTFILE_SPEC): Define conditionally, based
        on whether HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES is defined.
        * config/mips/elf64.h (STARTFILE_SPEC): Likewise.
        * config/mips/isa3264.h (STARTFILE_SPEC): Do not redefine if
        HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES is set; the result
        will be the same.

From-SVN: r55851

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 668337eb8aa39c8f881f7be374828ad4f54fdb96..f1f8c1506c6a6a551e92656c3cef38572309a6c9 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,16 @@
+2002-07-29  Chris Demetriou  <cgd@broadcom.com>
+
+       * configure.in (mips*-*-*): Add a test to see if MIPS libgloss
+       linker scripts use STARTUP directives consistently.
+       * configure: Regenerate.
+       * config.in: Regenerate.
+       * config/mips/elf.h (STARTFILE_SPEC): Define conditionally, based
+       on whether HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES is defined.
+       * config/mips/elf64.h (STARTFILE_SPEC): Likewise.
+       * config/mips/isa3264.h (STARTFILE_SPEC): Do not redefine if
+       HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES is set; the result
+       will be the same.
+
 2002-07-29  Aldy Hernandez  <aldyh@redhat.com>
 
        * config/rs6000/rs6000.md ("cpu"): Add ppc8540 to attribute.

diff --git a/gcc/config.in b/gcc/config.in
index b46403279f760393179f099bd069ad99023f70d4..de68c88b36d1a3cc8b74dbe9f574050ba632128a 100644 (file)
--- a/gcc/config.in
+++ b/gcc/config.in
@@ -579,6 +579,9 @@
 /* Define if your linker supports --eh-frame-hdr option. */
 #undef HAVE_LD_EH_FRAME_HDR
 
+/* Define if your MIPS libgloss linker scripts consistently include STARTUP directives. */
+#undef HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES
+
 /* Define 0/1 to force the choice for exception handling model. */
 #undef CONFIG_SJLJ_EXCEPTIONS
 

diff --git a/gcc/config/mips/elf.h b/gcc/config/mips/elf.h
index c759f97e5447a51a9c6c0bcf8dda6205a351946a..b62bf34340975ac50ff2fb12c19e81de8c0ac933 100644 (file)
--- a/gcc/config/mips/elf.h
+++ b/gcc/config/mips/elf.h
@@ -255,7 +255,11 @@ void FN ()                                                            \
 #define LIB_SPEC ""
 
 #undef  STARTFILE_SPEC
+#ifdef HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES
+#define STARTFILE_SPEC "crti%O%s crtbegin%O%s"
+#else
 #define STARTFILE_SPEC "crti%O%s crtbegin%O%s %{!mno-crt0:crt0%O%s}"
+#endif
 
 #undef  ENDFILE_SPEC
 #define ENDFILE_SPEC "crtend%O%s crtn%O%s"

diff --git a/gcc/config/mips/elf64.h b/gcc/config/mips/elf64.h
index 4fd74313ed0cd9fdc19a94311ee4f4b9266c0765..32116b7e641c9225dde2a0b65aea128089d7ca87 100644 (file)
--- a/gcc/config/mips/elf64.h
+++ b/gcc/config/mips/elf64.h
@@ -225,7 +225,11 @@ void FN ()                                                            \
 #define LIB_SPEC ""
 
 #undef  STARTFILE_SPEC
+#ifdef HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES
+#define STARTFILE_SPEC "crti%O%s crtbegin%O%s"
+#else
 #define STARTFILE_SPEC "crti%O%s crtbegin%O%s %{!mno-crt0:crt0%O%s}"
+#endif
 
 #undef  ENDFILE_SPEC
 #define ENDFILE_SPEC "crtend%O%s crtn%O%s"

diff --git a/gcc/config/mips/isa3264.h b/gcc/config/mips/isa3264.h
index b7ab601cfec32dd6ed4e1c9bd584e7fa176eeedd..90525963a2bbc5b316beccee684bc9bb27fc0481 100644 (file)
--- a/gcc/config/mips/isa3264.h
+++ b/gcc/config/mips/isa3264.h
@@ -33,9 +33,13 @@ Boston, MA 02111-1307, USA.  */
 
 #include "mips/elf.h"
 
+#ifndef HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES
+/* Once HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES is always true, this code
+   can be GC'd.  */
 #if MIPS_ABI_DEFAULT == ABI_MEABI
 /* For MEABI, don't link with crt0 files, let the linker start files specify
    the appropriate crt0 file.  */
 #undef  STARTFILE_SPEC
-#define STARTFILE_SPEC "crti%O%s crtbegin%O%s %{!mno-crt0: }"
+#define STARTFILE_SPEC "crti%O%s crtbegin%O%s"
+#endif
 #endif

diff --git a/gcc/configure b/gcc/configure
index e980e137e80f68000e0e60f8bd635777b3dd5b9c..6c7824d855762c89c5ee775da94a4dc59e01c518 100755 (executable)
--- a/gcc/configure
+++ b/gcc/configure
@@ -7917,6 +7917,39 @@ EOF
 fi
 echo "$ac_t""$gcc_cv_ld_eh_frame_hdr" 1>&6
 
+# Miscellaneous target-specific checks.
+case "$target" in
+  mips*-*-*)
+    echo $ac_n "checking whether libgloss uses STARTUP directives consistently""... $ac_c" 1>&6
+echo "configure:7925: checking whether libgloss uses STARTUP directives consistently" >&5
+    gcc_cv_mips_libgloss_startup=no
+    gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
+    if test "x$exec_prefix" = xNONE; then
+      if test "x$prefix" = xNONE; then
+        test_prefix=/usr/local
+      else
+        test_prefix=$prefix
+      fi
+    else
+      test_prefix=$exec_prefix
+    fi
+    for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
+    do
+      if grep '^STARTUP' $f > /dev/null 2>&1; then
+        gcc_cv_mips_libgloss_startup=yes
+        break
+      fi
+    done
+    if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
+      cat >> confdefs.h <<\EOF
+#define HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES 1
+EOF
+
+    fi
+    echo "$ac_t""$gcc_cv_mips_libgloss_startup" 1>&6
+    ;;
+esac
+
 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
   cat >> confdefs.h <<EOF
 #define PREFIX_INCLUDE_DIR "$prefix/include"
@@ -8092,7 +8125,7 @@ fi
 
 
 echo $ac_n "checking whether to enable maintainer-specific portions of Makefiles""... $ac_c" 1>&6
-echo "configure:8096: checking whether to enable maintainer-specific portions of Makefiles" >&5
+echo "configure:8129: checking whether to enable maintainer-specific portions of Makefiles" >&5
     # Check whether --enable-maintainer-mode or --disable-maintainer-mode was given.
 if test "${enable_maintainer_mode+set}" = set; then
   enableval="$enable_maintainer_mode"

diff --git a/gcc/configure.in b/gcc/configure.in
index 74d8757b5ad8d9f14912cdd751188a481b78a393..5fbdcbca12f2ecfb3aaf5139d76c27f571726d61 100644 (file)
--- a/gcc/configure.in
+++ b/gcc/configure.in
@@ -2172,6 +2172,36 @@ if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
 fi
 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
 
+# Miscellaneous target-specific checks.
+case "$target" in
+  mips*-*-*)
+    AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
+    gcc_cv_mips_libgloss_startup=no
+    gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
+    if test "x$exec_prefix" = xNONE; then
+      if test "x$prefix" = xNONE; then
+        test_prefix=/usr/local
+      else
+        test_prefix=$prefix
+      fi
+    else
+      test_prefix=$exec_prefix
+    fi
+    for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
+    do
+      if grep '^STARTUP' $f > /dev/null 2>&1; then
+        gcc_cv_mips_libgloss_startup=yes
+        break
+      fi
+    done
+    if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
+      AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
+        [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
+    fi
+    AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
+    ;;
+esac
+
 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
   AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
 fi