2007-02-13 Paul Brook <paul@codesourcery.com>

	gcc/
	* config.gcc: Add arm*-*-uclinux-*eabi.
	* config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
	(SUBTARGET_EXTRA_LINK_SPEC): Define.
	(STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
	(LINK_GCC_C_SEQUENCE_SPEC): Undef.
	(LINK_SPEC): Define.
	(LIB_SPEC): Define.
	* config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
	register.
	* config/arm/uclinux-eabi.h: New file.
	* config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
	* config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
	based targets.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@121902 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 30 insertions, 18 deletions

diff --git a/gcc/config/arm/uclinux-elf.h b/gcc/config/arm/uclinux-elf.h
index 9f112cddaa2..d6dc4f60bdf 100644
--- a/gcc/config/arm/uclinux-elf.h
+++ b/gcc/config/arm/uclinux-elf.h
@@ -32,6 +32,21 @@
 /* NOTE: The remaining definitions in this file are needed because uclinux
    does not use config/linux.h.  */
 
+/* Add GNU/Linux builtins.  */
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() 		\
+  do 						\
+    {						\
+      builtin_define ("__uClinux__");		\
+      builtin_define ("__gnu_linux__");         \
+      builtin_define_std ("linux");             \
+      builtin_define_std ("unix");              \
+      builtin_assert ("system=linux");          \
+      builtin_assert ("system=unix");           \
+      builtin_assert ("system=posix");          \
+    }						\
+  while (false)
+
 /* Do not assume anything about header files.  */
 #define NO_IMPLICIT_EXTERN_C
 
@@ -39,32 +54,20 @@
 #undef CPLUSPLUS_CPP_SPEC
 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
 
-/* Provide a STARTFILE_SPEC appropriate for GNU/Linux.  Here we add
-   the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
-   provides part of the support for getting C++ file-scope static
-   object constructed before entering `main'.  */
+#undef SUBTARGET_EXTRA_LINK_SPEC
+#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux"
 
+/* Now we define the strings used to build the spec file.  */
 #undef  STARTFILE_SPEC
-#define STARTFILE_SPEC \
-  "%{!shared: \
-     %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
-		       %{!p:%{profile:gcrt1.o%s} \
-			 %{!profile:crt1.o%s}}}} \
-   crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
-
-/* Provide a ENDFILE_SPEC appropriate for GNU/Linux.  Here we tack on
-   the GNU/Linux magical crtend.o file (see crtstuff.c) which
-   provides part of the support for getting C++ file-scope static
-   object constructed before entering `main', followed by a normal
-   GNU/Linux "finalizer" file, `crtn.o'.  */
+#define STARTFILE_SPEC	"crt1%O%s crti%O%s crtbegin%O%s"
 
 #undef  ENDFILE_SPEC
-#define ENDFILE_SPEC \
-  "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
+#define ENDFILE_SPEC	"crtend%O%s crtn%O%s"
 
 #undef  CC1_SPEC
 #define CC1_SPEC "%{profile:-p}"
 
+#undef LINK_GCC_C_SEQUENCE_SPEC
 #define LINK_GCC_C_SEQUENCE_SPEC \
   "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
 
@@ -72,3 +75,12 @@
 #ifdef HAVE_LD_AS_NEEDED
 #define USE_LD_AS_NEEDED 1
 #endif
+
+#undef LINK_SPEC
+#define LINK_SPEC "%{mbig-endian:-EB} %{mlittle-endian:-EL} -X -elf2flt"
+
+#undef  LIB_SPEC
+#define LIB_SPEC \
+  "%{pthread:-lpthread} \
+   %{shared:-lc} \
+   %{!shared:%{profile:-lc_p}%{!profile:-lc}}"