svn commit: r270012 - in projects/arm64: contrib/gcc gnu/lib/csu gnu/lib/libgcc gnu/lib/libgcc/arm64

[Andrew Turner]

Author: andrew
Date: Fri Aug 15 09:10:17 2014
New Revision: 270012
URL: http://svnweb.freebsd.org/changeset/base/270012

Log:
  Port the GNU parts of CSU and libgcc_s to arm64. Unfortunately
  execute_cfa_program causes the following with clang. As the backend
  has changed significantly in 3.5 no effort to diagnose or fix the
  problem will take place.
  
  Assertion failed: (Scavenged[SI].FrameIndex >= 0 &&
   "Cannot scavenge register without an emergency spill slot!"),
   function scavengeRegister, file
   <llvm location>/lib/CodeGen/RegisterScavenging.cpp, line 415.
  Stack dump:
  0.	Program arguments: <compiler command>
  1.	<eof> parser at end of file
  2.	Code generation
  3.	Running pass 'Function Pass Manager' on module <file location>
  4.	Running pass 'Prologue/Epilogue Insertion & Frame Finalization'
   on function '@execute_cfa_program'

Added:
  projects/arm64/gnu/lib/libgcc/arm64/
  projects/arm64/gnu/lib/libgcc/arm64/arm64.h
  projects/arm64/gnu/lib/libgcc/arm64/freebsd.h
Modified:
  projects/arm64/contrib/gcc/unwind-dw2.c
  projects/arm64/gnu/lib/csu/Makefile
  projects/arm64/gnu/lib/libgcc/Makefile

Modified: projects/arm64/contrib/gcc/unwind-dw2.c
==============================================================================
--- projects/arm64/contrib/gcc/unwind-dw2.c	Fri Aug 15 07:30:14 2014	(r270011)
+++ projects/arm64/contrib/gcc/unwind-dw2.c	Fri Aug 15 09:10:17 2014	(r270012)
@@ -849,6 +849,8 @@ execute_cfa_program (const unsigned char
 		     struct _Unwind_Context *context,
 		     _Unwind_FrameState *fs)
 {
+  abort();
+#if 0 /* Broken woth clang 3.4 for arm64 */
   struct frame_state_reg_info *unused_rs = NULL;
 
   /* Don't allow remember/restore between CIE and FDE programs.  */
@@ -1082,6 +1084,7 @@ execute_cfa_program (const unsigned char
 	  gcc_unreachable ();
 	}
     }
+#endif
 }
 

 /* Given the _Unwind_Context CONTEXT for a stack frame, look up the FDE for

Modified: projects/arm64/gnu/lib/csu/Makefile
==============================================================================
--- projects/arm64/gnu/lib/csu/Makefile	Fri Aug 15 07:30:14 2014	(r270011)
+++ projects/arm64/gnu/lib/csu/Makefile	Fri Aug 15 09:10:17 2014	(r270012)
@@ -20,7 +20,7 @@ CFLAGS+=	-fno-inline-functions -fno-exce
 		-fno-zero-initialized-in-bss -fno-asynchronous-unwind-tables \
 		-fno-omit-frame-pointer
 CFLAGS+=	-I${GCCLIB}/include -I${GCCDIR}/config -I${GCCDIR} -I. \
-		-I${CCDIR}/cc_tools
+		-I${CCDIR}/cc_tools -I${.CURDIR}/../libgcc
 CRTS_CFLAGS=	-DCRTSTUFFS_O -DSHARED ${PICFLAG}
 MKDEP=		-DCRT_BEGIN
 

Modified: projects/arm64/gnu/lib/libgcc/Makefile
==============================================================================
--- projects/arm64/gnu/lib/libgcc/Makefile	Fri Aug 15 07:30:14 2014	(r270011)
+++ projects/arm64/gnu/lib/libgcc/Makefile	Fri Aug 15 09:10:17 2014	(r270012)
@@ -25,7 +25,8 @@ CFLAGS+=	-DIN_GCC -DIN_LIBGCC2 -D__GCC_F
 		-DHAVE_GTHR_DEFAULT \
 		-I${GCCLIB}/include \
 		-I${GCCDIR}/config -I${GCCDIR} -I. \
-		-I${.CURDIR}/../../usr.bin/cc/cc_tools
+		-I${.CURDIR}/../../usr.bin/cc/cc_tools \
+		-I${.CURDIR}
 
 LDFLAGS+=	-nodefaultlibs
 LDADD+=		-lc
@@ -55,7 +56,8 @@ LIB2FUNCS+= _fixuns${mode}si
 .endfor
 
 # Likewise double-word routines.
-.if ${TARGET_CPUARCH} != "arm" || ${MK_ARM_EABI} == "no"
+.if (${TARGET_CPUARCH} != "arm" || ${MK_ARM_EABI} == "no") && \
+    ${TARGET_CPUARCH} != "arm64"
 # These are implemented in an ARM specific file but will not be filtered out
 .for mode in sf df xf tf
 LIB2FUNCS+= _fix${mode}di _fixuns${mode}di

Added: projects/arm64/gnu/lib/libgcc/arm64/arm64.h
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ projects/arm64/gnu/lib/libgcc/arm64/arm64.h	Fri Aug 15 09:10:17 2014	(r270012)
@@ -0,0 +1,3 @@
+
+/* Mostly made up */
+#define FIRST_PSEUDO_REGISTER   96

Added: projects/arm64/gnu/lib/libgcc/arm64/freebsd.h
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ projects/arm64/gnu/lib/libgcc/arm64/freebsd.h	Fri Aug 15 09:10:17 2014	(r270012)
@@ -0,0 +1,5 @@
+
+#undef INIT_SECTION_ASM_OP
+#undef FINI_SECTION_ASM_OP
+#define INIT_ARRAY_SECTION_ASM_OP "\t.section\t.init_array,\"aw\",%init_array"
+#define FINI_ARRAY_SECTION_ASM_OP "\t.section\t.fini_array,\"aw\",%fini_array"