alnyan/yggdrasil: target-level support for x86_64-unknown-yggdrasil

config.sub

@@ -1749,7 +1749,7 @@ case $os in
 	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
 	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
 	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
-	     | fiwix* )
+	     | fiwix* | yggdrasil* )
 		;;
 	# This one is extra strict with allowed versions
 	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)

fixincludes/mkfixinc.sh

@@ -11,6 +11,8 @@ target=fixinc.sh
 
 # Check for special fix rules for particular targets
 case $machine in
+    *-yggdrasil* | \
+    *-*-yggdrasil* | \
     i?86-*-cygwin* | \
     i?86-*-mingw32* | \
     x86_64-*-mingw32* | \

gcc/config.gcc

@@ -181,7 +181,7 @@
 #			the --with-sysroot configure option or the
 #			--sysroot command line option is used this
 #			will be relative to the sysroot.
-# target_type_format_char 
+# target_type_format_char
 # 			The default character to be used for formatting
 #			the attribute in a
 #			.type symbol_name, ${t_t_f_c}<property>
@@ -690,6 +690,12 @@ x86_cpus="generic intel"
 
 # Common parts for widely ported systems.
 case ${target} in
+*-*-yggdrasil*)
+  gas=yes
+  gnu_ld=yes
+  default_use_cxa_atexit=yes
+  use_gcc_stdint=provide
+  ;;
 *-*-darwin*)
   tmake_file="t-darwin "
   tm_file="${tm_file} darwin.h"
@@ -1126,6 +1132,9 @@ case ${target} in
 esac
 
 case ${target} in
+x86_64-*-yggdrasil*)
+    tm_file="${tm_file} i386/unix.h i386/att.h elfos.h glibc-stdint.h i386/i386elf.h i386/x86-64.h yggdrasil.h"
+    ;;
 aarch64*-*-elf | aarch64*-*-fuchsia* | aarch64*-*-rtems*)
 	tm_file="${tm_file} elfos.h newlib-stdint.h"
 	tm_file="${tm_file} aarch64/aarch64-elf.h aarch64/aarch64-errata.h aarch64/aarch64-elf-raw.h"

gcc/config/yggdrasil.h

@@ -0,0 +1,26 @@
+#undef TARGET_YGGDRASIL
+#define TARGET_YGGDRASIL 1
+
+#undef LIB_SPEC
+#define LIB_SPEC "-static -lygglibc"
+
+/* Tell ld to force 4KB pages*/
+#undef LINK_SPEC
+#define LINK_SPEC "-z max-page-size=4096"
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC "crti.o%s crtbegin.o%s"
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC "crtend.o%s"
+
+/* Additional predefined macros. */
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS()            \
+  do {                                      \
+    builtin_define ("__yggdrasil__");       \
+    builtin_define ("__unix__");            \
+    builtin_assert ("system=yggdrasil");    \
+    builtin_assert ("system=unix");         \
+    builtin_assert ("system=posix");        \
+  } while(0);

libgcc/config.host

@@ -103,7 +103,7 @@ arm*-*-*)
 	;;
 avr-*-*)
 	cpu_type=avr
-	;;    
+	;;
 bfin*-*)
 	cpu_type=bfin
 	;;
@@ -386,6 +386,10 @@ i[34567]86-*-cygwin* | x86_64-*-cygwin*)
 esac
 
 case ${host} in
+x86_64-*-yggdrasil*)
+	extra_parts="$extra_parts crti.o crtbegin.o crtend.o crtn.o"
+	tmake_file="$tmake_file i386/t-crtstuff t-crtstuff-pic t-libgcc-pic"
+    ;;
 aarch64*-*-elf | aarch64*-*-rtems*)
 	extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o"
 	extra_parts="$extra_parts crtfastmath.o"

libstdc++-v3/crossconfig.m4

@@ -90,7 +90,7 @@ case "${host}" in
 
   *-freebsd*)
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
-    AC_SUBST(SECTION_FLAGS) 
+    AC_SUBST(SECTION_FLAGS)
     GLIBCXX_CHECK_LINKER_FEATURES
     AC_DEFINE(HAVE_SETENV)
     AC_DEFINE(HAVE_FINITEF)
@@ -198,9 +198,15 @@ case "${host}" in
     AC_CHECK_FUNCS(_wfopen)
     GCC_CHECK_TLS
     ;;
+  *-yggdrasil*)
+    GLIBCXX_CHECK_COMPILER_FEATURES
+    GLIBCXX_CHECK_LINKER_FEATURES
+    GLIBCXX_CHECK_MATH_SUPPORT
+    GLIBCXX_CHECK_STDLIB_SUPPORT
+    ;;
   *-netbsd* | *-openbsd*)
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
-    AC_SUBST(SECTION_FLAGS) 
+    AC_SUBST(SECTION_FLAGS)
     GLIBCXX_CHECK_LINKER_FEATURES
     AC_DEFINE(HAVE_FINITEF)
     AC_DEFINE(HAVE_FINITE)
@@ -221,7 +227,7 @@ case "${host}" in
     ;;
   *-qnx6.1* | *-qnx6.2*)
     SECTION_FLAGS='-ffunction-sections -fdata-sections'
-    AC_SUBST(SECTION_FLAGS) 
+    AC_SUBST(SECTION_FLAGS)
     GLIBCXX_CHECK_LINKER_FEATURES
     AC_DEFINE(HAVE_COSF)
     AC_DEFINE(HAVE_COSL)