Add --disable-strip and enable gcc strip

GCC has an install target 'install-strip' that strips debug symbols at
install time. This reduces the installed size from ~4GB to ~2GB.

Enable strip on install by default but provide the option to disable it.

The downside of this is when GCC ICEs, we don't get a proper backtrace
any more.

Signed-off-by: Joel Stanley <joel@tenstorrent.com>

Author: Joel Stanley

Makefile.in

@@ -16,6 +16,7 @@ LLVM_SRCDIR := @with_llvm_src@
 DEJAGNU_SRCDIR := @with_dejagnu_src@
 DEBUG_INFO := @debug_info@
 DEJAGNU_SRCDIR := @with_dejagnu_src@
+GCC_INSTALL_TARGET := @gcc_install_target@
 
 SIM ?= @WITH_SIM@
 
@@ -515,7 +516,7 @@ stamps/build-gcc-linux-stage2: $(GCC_SRCDIR) $(GCC_SRC_GIT) $(addprefix stamps/b
 		CFLAGS_FOR_TARGET="-O2 $(CFLAGS_FOR_TARGET)" \
 		CXXFLAGS_FOR_TARGET="-O2 $(CXXFLAGS_FOR_TARGET)"
 	$(MAKE) -C $(notdir $@)
-	$(MAKE) -C $(notdir $@) install
+	$(MAKE) -C $(notdir $@) $(GCC_INSTALL_TARGET)
 	cp -a $(INSTALL_DIR)/$(LINUX_TUPLE)/lib* $(SYSROOT)
 	mkdir -p $(dir $@) && touch $@
 
@@ -569,7 +570,7 @@ stamps/build-gcc-linux-native: $(GCC_SRCDIR) $(GCC_SRC_GIT) stamps/build-gcc-lin
 		$(WITH_ISA_SPEC) \
 		$(GCC_EXTRA_CONFIGURE_FLAGS)
 	$(MAKE) -C $(notdir $@)
-	$(MAKE) -C $(notdir $@) install
+	$(MAKE) -C $(notdir $@) $(GCC_INSTALL_TARGET)
 	cp -a $(INSTALL_DIR)/$(LINUX_TUPLE)/lib* $(SYSROOT)
 	mkdir -p $(dir $@) && touch $@
 

configure

@@ -598,6 +598,7 @@ with_glibc_src
 with_newlib_src
 with_binutils_src
 with_gcc_src
+gcc_install_target
 enable_host_gcc
 enable_llvm
 enable_gdb
@@ -699,6 +700,7 @@ with_guile
 enable_gdb
 enable_llvm
 enable_host_gcc
+enable_strip
 with_gcc_src
 with_binutils_src
 with_newlib_src
@@ -1343,6 +1345,7 @@ Optional Features:
   --disable-gdb           Don't build GDB, as it's not upstream
   --enable-llvm           Build LLVM (clang)
   --enable-host-gcc       Build host GCC to build cross toolchain
+  --disable-strip         Do not strip debug symbols at install time
   --enable-libsanitizer   Build libsanitizer, which only supports rv64
   --enable-qemu-system    Build qemu with system-mode emulation
 
@@ -3640,6 +3643,26 @@ else
 
 fi
 
+# Check whether --enable-strip was given.
+if test ${enable_strip+y}
+then :
+  enableval=$enable_strip;
+else case e in #(
+  e) strip_debug=yes ;;
+esac
+fi
+
+
+if test "x$strip_debug" != xyes
+then :
+  gcc_install_target=install
+
+else case e in #(
+  e) gcc_install_target=install-strip
+ ;;
+esac
+fi
+
 
 
 {

configure.ac

@@ -269,6 +269,16 @@ AS_IF([test "x$enable_host_gcc" != xyes],
 	[AC_SUBST(enable_host_gcc, --disable-host-gcc)],
 	[AC_SUBST(enable_host_gcc, --enable-host-gcc)])
 
+AC_ARG_ENABLE(strip,
+	[AS_HELP_STRING([--disable-strip],
+			[Do not strip debug symbols at install time])],
+	[],
+	[strip_debug=yes])
+
+AS_IF([test "x$strip_debug" != xyes],
+	[AC_SUBST(gcc_install_target, install)],
+	[AC_SUBST(gcc_install_target, install-strip)])
+
 AC_DEFUN([AX_ARG_WITH_SRC],
 	[{m4_pushdef([opt_name], with_$1_src)
 	  AC_ARG_WITH($1-src,