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Add support for armv6*-*-freebsd*.

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The large patch is the same as the one from r376266.
The second patch is a temporary fix for the bootstrap failure on all
ARM targets. This fix will be hopefully soon applied to gcc-4.9.x upstream.

Thanks again to Sean Bruno for testing and Gerald for approving.

Approved by:	gerald (maintainer)
This commit is contained in:
Andreas Tobler 2015-01-05 19:28:19 +00:00
parent 89cab731e2
commit 520645def8
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=376350
3 changed files with 776 additions and 3 deletions
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21
lang/gcc49/Makefile
View File

@ -31,7 +31,7 @@ BUILD_DEPENDS+= runtest:${PORTSDIR}/misc/dejagnu
DISTVERSION= ${PORTVERSION:C/([0-9]+\.[0-9]+).*\.s([0-9]+)/\1-\2/}
GCC_VERSION= ${PORTVERSION:C/(.+)\.s[0-9]{8}/\1/}
SUFFIX= ${PORTVERSION:C/([0-9]+).([0-9]+).*/\1\2/}
ONLY_FOR_ARCHS= amd64 i386 powerpc powerpc64 sparc64
ONLY_FOR_ARCHS= amd64 armv6 armv6hf i386 powerpc powerpc64 sparc64
USES= gmake iconv libtool makeinfo perl5 tar:bzip2
USE_BINUTILS= yes
USE_PERL5= build
@ -60,6 +60,18 @@ CONFIGURE_TARGET= ${ARCH}-portbld-${OPSYS:tl}${OSREL}
CONFIGURE_ENV+= UNAME_m="powerpc64"
.endif
.if ${ARCH} == "armv6" || ${ARCH} == "armv6hf"
# We have to override the sys.mk -O CFLAG since it breaks libgomp building.
CFLAGS:= ${CFLAGS:S/-O/-O2/g}
. if ${COMPILER_TYPE} == clang
. if empty(PORT_OPTIONS:MBOOTSTRAP)
MAKE_ARGS+=CXXFLAGS=-fbracket-depth=512
. else
MAKE_ARGS+=STAGE1_CXXFLAGS=-fbracket-depth=512
. endif
. endif
.endif
LANGUAGES:= c,c++,objc,fortran
SRCDIR= ${WRKDIR}/gcc-${DISTVERSION}
WRKSRC= ${WRKDIR}/build
@ -97,9 +109,12 @@ INFO= gcc${SUFFIX}/cpp \
gcc${SUFFIX}/gfortran \
gcc${SUFFIX}/libgomp
.if ${ARCH} == "i386" || ${ARCH} == "amd64"
INFO+= gcc${SUFFIX}/libquadmath \
gcc${SUFFIX}/libitm
INFO+= gcc${SUFFIX}/libquadmath
.endif
.if ${ARCH} == "i386" || ${ARCH} == "amd64" || ${ARCH} == "armv6" || ${ARCH} == "armv6hf"
INFO+= gcc${SUFFIX}/libitm
.endif
SUB_FILES= pkg-message
SUB_LIST+= TARGLIB=${TARGLIB}

744
lang/gcc49/files/patch-arm-support Normal file
View File

@ -0,0 +1,744 @@
Index: configure
===================================================================
--- configure (revision 218760)
+++ configure (working copy)
@@ -3352,6 +3352,9 @@
alpha*-*-*vms*)
noconfigdirs="$noconfigdirs ${libgcj}"
;;
+ arm*-*-freebsd*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
arm-wince-pe)
noconfigdirs="$noconfigdirs ${libgcj}"
;;
Index: configure.ac
===================================================================
--- configure.ac (revision 218760)
+++ configure.ac (working copy)
@@ -691,6 +691,9 @@
alpha*-*-*vms*)
noconfigdirs="$noconfigdirs ${libgcj}"
;;
+ arm*-*-freebsd*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
arm-wince-pe)
noconfigdirs="$noconfigdirs ${libgcj}"
;;
Index: gcc/config/arm/arm.c
===================================================================
--- gcc/config/arm/arm.c (revision 218760)
+++ gcc/config/arm/arm.c (working copy)
@@ -1239,7 +1239,7 @@
{
/* For Linux, we have access to kernel support for atomic operations. */
if (arm_abi == ARM_ABI_AAPCS_LINUX)
- init_sync_libfuncs (2 * UNITS_PER_WORD);
+ init_sync_libfuncs (MAX_SYNC_LIBFUNC_SIZE);
/* There are no special library functions unless we are using the
ARM BPABI. */
Index: gcc/config/arm/arm.h
===================================================================
--- gcc/config/arm/arm.h (revision 218760)
+++ gcc/config/arm/arm.h (working copy)
@@ -720,6 +720,11 @@
#define PCC_BITFIELD_TYPE_MATTERS TARGET_AAPCS_BASED
#endif
+/* The maximum size of the sync library functions supported. */
+#ifndef MAX_SYNC_LIBFUNC_SIZE
+#define MAX_SYNC_LIBFUNC_SIZE (2 * UNITS_PER_WORD);
+#endif
+
/* Standard register usage. */
Index: gcc/config/arm/freebsd.h
===================================================================
--- gcc/config/arm/freebsd.h (revision 0)
+++ gcc/config/arm/freebsd.h (working copy)
@@ -0,0 +1,180 @@
+/* Definitions of target machine for GNU compiler, FreeBSD/arm version.
+ Copyright (C) 2002-2014 Free Software Foundation, Inc.
+ Contributed by Wasabi Systems, Inc.
+
+ This file is part of GCC.
+
+ GCC is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version.
+
+ GCC is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
+ License for more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License
+ along with GCC; see the file COPYING3. If not see
+ <http://www.gnu.org/licenses/>. */
+
+#undef SUBTARGET_CPP_SPEC
+#define SUBTARGET_CPP_SPEC FBSD_CPP_SPEC
+
+#undef SUBTARGET_EXTRA_SPECS
+#define SUBTARGET_EXTRA_SPECS \
+ { "subtarget_extra_asm_spec", SUBTARGET_EXTRA_ASM_SPEC }, \
+ { "subtarget_asm_float_spec", SUBTARGET_ASM_FLOAT_SPEC }, \
+ { "fbsd_dynamic_linker", FBSD_DYNAMIC_LINKER }
+
+#undef SUBTARGET_EXTRA_ASM_SPEC
+#define SUBTARGET_EXTRA_ASM_SPEC \
+ "%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu;:-meabi=5} " TARGET_FIX_V4BX_SPEC " \
+ %{fpic|fpie:-k} %{fPIC|fPIE:-k}"
+
+#undef SUBTARGET_ASM_FLOAT_SPEC
+#ifdef TARGET_FREEBSD_ARM_HARD_FLOAT
+/* Default to full vfp if we build for arm*hf. */
+#define SUBTARGET_ASM_FLOAT_SPEC "%{!mfpu=*:-mfpu=vfp}"
+#else
+#define SUBTARGET_ASM_FLOAT_SPEC "%{!mfpu=*:-mfpu=softvfp}"
+#endif
+
+#undef LINK_SPEC
+#define LINK_SPEC " \
+ %{p:%nconsider using `-pg' instead of `-p' with gprof (1) } \
+ %{v:-V} \
+ %{assert*} %{R*} %{rpath*} %{defsym*} \
+ %{shared:-Bshareable %{h*} %{soname*}} \
+ %{!shared: \
+ %{!static: \
+ %{rdynamic:-export-dynamic} \
+ %{!dynamic-linker:-dynamic-linker %(fbsd_dynamic_linker) }} \
+ %{static:-Bstatic}} \
+ %{!static:--hash-style=both --enable-new-dtags} \
+ %{symbolic:-Bsymbolic} \
+ -X %{mbig-endian:-EB} %{mlittle-endian:-EL}"
+
+/* TARGET_BIG_ENDIAN_DEFAULT is set in
+ config.gcc for big endian configurations. */
+#if TARGET_BIG_ENDIAN_DEFAULT
+#define TARGET_ENDIAN_DEFAULT MASK_BIG_END
+#define TARGET_ENDIAN_OPTION "mbig-endian"
+#define TARGET_LINKER_EMULATION "armelfb_fbsd"
+#else
+#define TARGET_ENDIAN_DEFAULT 0
+#define TARGET_ENDIAN_OPTION "mlittle-endian"
+#define TARGET_LINKER_EMULATION "armelf_fbsd"
+#endif
+
+#undef SUBTARGET_EXTRA_LINK_SPEC
+#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
+
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ FBSD_TARGET_OS_CPP_BUILTINS (); \
+ TARGET_BPABI_CPP_BUILTINS (); \
+ } \
+ while (false)
+
+/* We default to a soft-float ABI so that binaries can run on all
+ target hardware. */
+#undef TARGET_DEFAULT_FLOAT_ABI
+#ifdef TARGET_FREEBSD_ARM_HARD_FLOAT
+#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
+#else
+#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
+#endif
+
+#undef ARM_DEFAULT_ABI
+
+/* AACPS_LINUX has access to kernel atomic ops while we don't.
+ But AACPS defaults to short_enums. */
+#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
+
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT (MASK_INTERWORK | TARGET_ENDIAN_DEFAULT)
+
+/* We do not have any MULTILIB_OPTIONS specified, so there are no
+ MULTILIB_DEFAULTS. */
+#undef MULTILIB_DEFAULTS
+
+/* Use the AAPCS type for wchar_t, override the one from config/freebsd.h. */
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "unsigned int"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE BITS_PER_WORD
+
+#if defined (TARGET_FREEBSD_ARMv6)
+#undef SUBTARGET_CPU_DEFAULT
+#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm1176jzs
+#else
+#undef SUBTARGET_CPU_DEFAULT
+#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9
+#endif
+
+#define SUBTARGET_OVERRIDE_OPTIONS \
+do { \
+ if (unaligned_access) \
+ unaligned_access = 0; \
+} while (0)
+
+#undef MAX_SYNC_LIBFUNC_SIZE
+#define MAX_SYNC_LIBFUNC_SIZE 4 /* UNITS_PER_WORD not defined yet. */
+
+/* FreeBSD does its profiling differently to the Acorn compiler. We
+ don't need a word following the mcount call; and to skip it
+ requires either an assembly stub or use of fomit-frame-pointer when
+ compiling the profiling functions. Since we break Acorn CC
+ compatibility below a little more won't hurt. */
+
+#undef ARM_FUNCTION_PROFILER
+#define ARM_FUNCTION_PROFILER(STREAM,LABELNO) \
+{ \
+ asm_fprintf (STREAM, "\tmov\t%Rip, %Rlr\n"); \
+ asm_fprintf (STREAM, "\tbl\t__mcount%s\n", \
+ (TARGET_ARM && NEED_PLT_RELOC) \
+ ? "(PLT)" : ""); \
+}
+
+/* Clear the instruction cache from `BEG' to `END'. This makes a
+ call to the ARM_SYNC_ICACHE architecture specific syscall. */
+#define CLEAR_INSN_CACHE(BEG, END) \
+do \
+ { \
+ extern int sysarch (int number, void *args); \
+ struct \
+ { \
+ unsigned int addr; \
+ int len; \
+ } s; \
+ s.addr = (unsigned int) (BEG); \
+ s.len = (END) - (BEG); \
+ (void) sysarch (0, &s); \
+ } \
+while (0)
+
+/* This is how we tell the assembler that two symbols have the same value. */
+#define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
+ do \
+ { \
+ assemble_name (FILE, NAME1); \
+ fputs (" = ", FILE); \
+ assemble_name (FILE, NAME2); \
+ fputc ('\n', FILE); \
+ } \
+ while (0)
+
+/* Add .note.GNU-stack. */
+#undef NEED_INDICATE_EXEC_STACK
+#define NEED_INDICATE_EXEC_STACK 1
+
+#define ARM_TARGET2_DWARF_FORMAT (DW_EH_PE_pcrel | DW_EH_PE_indirect)
+
Property changes on: gcc/config/arm/freebsd.h
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+FreeBSD=%H
\ No newline at end of property
Added: svn:mime-type
## -0,0 +1 ##
+text/plain
\ No newline at end of property
Index: gcc/config.gcc
===================================================================
--- gcc/config.gcc (revision 218760)
+++ gcc/config.gcc (working copy)
@@ -267,7 +267,6 @@
arm*-wince-pe* \
| arm*-*-ecos-elf \
| arm*-*-elf \
- | arm*-*-freebsd* \
| arm*-*-linux* \
| arm*-*-uclinux* \
| i[34567]86-go32-* \
@@ -865,6 +864,28 @@
extra_options="${extra_options} arm/vxworks.opt"
tmake_file="${tmake_file} arm/t-arm arm/t-vxworks"
;;
+arm*-*-freebsd*) # ARM FreeBSD EABI
+ tm_file="dbxelf.h elfos.h ${fbsd_tm_file} arm/elf.h"
+ case $target in
+ arm*b-*-freebsd*)
+ tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1"
+ ;;
+ esac
+ tmake_file="${tmake_file} arm/t-arm arm/t-bpabi"
+ tm_file="${tm_file} arm/bpabi.h arm/freebsd.h arm/aout.h arm/arm.h"
+ case $target in
+ armv6*-*-freebsd*)
+ tm_defines="${tm_defines} TARGET_FREEBSD_ARMv6=1"
+ ;;
+ esac
+ case $target in
+ arm*hf-*-freebsd*)
+ tm_defines="${tm_defines} TARGET_FREEBSD_ARM_HARD_FLOAT=1"
+ ;;
+ esac
+ need_64bit_hwint=yes
+ with_tls=${with_tls:-gnu}
+ ;;
arm*-*-netbsdelf*)
tm_file="dbxelf.h elfos.h netbsd.h netbsd-elf.h arm/elf.h arm/aout.h ${tm_file} arm/netbsd-elf.h"
extra_options="${extra_options} netbsd.opt netbsd-elf.opt"
Index: gcc/config.host
===================================================================
--- gcc/config.host (revision 218760)
+++ gcc/config.host (working copy)
@@ -99,7 +99,7 @@
esac
case ${host} in
- arm*-*-linux*)
+ arm*-*-freebsd* | arm*-*-linux*)
case ${target} in
arm*-*-*)
host_extra_gcc_objs="driver-arm.o"
Index: gcc/ginclude/unwind-arm-common.h
===================================================================
--- gcc/ginclude/unwind-arm-common.h (revision 218760)
+++ gcc/ginclude/unwind-arm-common.h (working copy)
@@ -82,7 +82,11 @@
struct _Unwind_Control_Block
{
+#ifdef __FreeBSD__
+ unsigned exception_class __attribute__((__mode__(__DI__)));
+#else
char exception_class[8];
+#endif
void (*exception_cleanup)(_Unwind_Reason_Code, _Unwind_Control_Block *);
/* Unwinder cache, private fields for the unwinder's use */
struct
@@ -181,7 +185,11 @@
/* Support functions for the PR. */
#define _Unwind_Exception _Unwind_Control_Block
+#ifdef __FreeBSD__
+ typedef unsigned _Unwind_Exception_Class __attribute__((__mode__(__DI__)));
+#else
typedef char _Unwind_Exception_Class[8];
+#endif
void * _Unwind_GetLanguageSpecificData (_Unwind_Context *);
_Unwind_Ptr _Unwind_GetRegionStart (_Unwind_Context *);
Index: libatomic/configure.tgt
===================================================================
--- libatomic/configure.tgt (revision 218760)
+++ libatomic/configure.tgt (working copy)
@@ -33,10 +33,15 @@
arm*)
ARCH=arm
- # ??? Detect when -march=armv7 is already enabled.
- try_ifunc=yes
- ;;
-
+ case "${target}" in
+ arm*-*-freebsd*)
+ ;;
+ *)
+ # ??? Detect when -march=armv7 is already enabled.
+ try_ifunc=yes
+ ;;
+ esac
+ ;;
sparc)
case " ${CC} ${CFLAGS} " in
*" -m64 "*)
Index: libgcc/config/arm/freebsd-atomic.c
===================================================================
--- libgcc/config/arm/freebsd-atomic.c (revision 0)
+++ libgcc/config/arm/freebsd-atomic.c (working copy)
@@ -0,0 +1,224 @@
+/* FreeBSD specific atomic operations for ARM EABI.
+ Copyright (C) 2014 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
+
+#include <sys/types.h>
+
+#define HIDDEN __attribute__ ((visibility ("hidden")))
+
+#define ARM_VECTORS_HIGH 0xffff0000U
+#define ARM_TP_ADDRESS (ARM_VECTORS_HIGH + 0x1000)
+#define ARM_RAS_START (ARM_TP_ADDRESS + 4)
+
+void HIDDEN
+__sync_synchronize (void)
+{
+#if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__) \
+ || defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6T2__) \
+ || defined (__ARM_ARCH_6Z__) || defined (__ARM_ARCH_6ZK__) \
+ || defined (__ARM_ARCH_7__) || defined (__ARM_ARCH_7A__)
+#if defined (__ARM_ARCH_7__) || defined (__ARM_ARCH_7A__)
+ __asm __volatile ("dmb" : : : "memory");
+#else
+ __asm __volatile ("mcr p15, 0, r0, c7, c10, 5" : : : "memory");
+#endif
+#else
+ __asm __volatile ("nop" : : : "memory");
+#endif
+}
+
+#if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__) \
+ || defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6T2__) \
+ || defined (__ARM_ARCH_6Z__) || defined (__ARM_ARCH_6ZK__) \
+ || defined (__ARM_ARCH_7__) || defined (__ARM_ARCH_7A__)
+
+/* These systems should be supported by the compiler. */
+
+#else /* __ARM_ARCH_5__ */
+
+#define SYNC_LOCK_TEST_AND_SET_N(N, TYPE, LDR, STR) \
+TYPE HIDDEN \
+__sync_lock_test_and_set_##N (TYPE *mem, TYPE val) \
+{ \
+ unsigned int old, temp, ras_start; \
+ \
+ ras_start = ARM_RAS_START; \
+ __asm volatile ( \
+ /* Set up Restartable Atomic Sequence. */ \
+ "1:" \
+ "\tadr %2, 1b\n" \
+ "\tstr %2, [%5]\n" \
+ "\tadr %2, 2f\n" \
+ "\tstr %2, [%5, #4]\n" \
+ \
+ "\t"LDR" %0, %4\n" /* Load old value. */ \
+ "\t"STR" %3, %1\n" /* Store new value. */ \
+ \
+ /* Tear down Restartable Atomic Sequence. */ \
+ "2:" \
+ "\tmov %2, #0x00000000\n" \
+ "\tstr %2, [%5]\n" \
+ "\tmov %2, #0xffffffff\n" \
+ "\tstr %2, [%5, #4]\n" \
+ : "=&r" (old), "=m" (*mem), "=&r" (temp) \
+ : "r" (val), "m" (*mem), "r" (ras_start)); \
+ return (old); \
+}
+
+#define SYNC_LOCK_RELEASE_N(N, TYPE) \
+void HIDDEN \
+__sync_lock_release_##N (TYPE *ptr) \
+{ \
+ /* All writes before this point must be seen before we release \
+ the lock itself. */ \
+ __sync_synchronize (); \
+ *ptr = 0; \
+}
+
+#define SYNC_VAL_CAS_N(N, TYPE, LDR, STREQ) \
+TYPE HIDDEN \
+__sync_val_compare_and_swap_##N (TYPE *mem, TYPE expected, \
+ TYPE desired) \
+{ \
+ unsigned int old, temp, ras_start; \
+ \
+ ras_start = ARM_RAS_START; \
+ __asm volatile ( \
+ /* Set up Restartable Atomic Sequence. */ \
+ "1:" \
+ "\tadr %2, 1b\n" \
+ "\tstr %2, [%6]\n" \
+ "\tadr %2, 2f\n" \
+ "\tstr %2, [%6, #4]\n" \
+ \
+ "\t"LDR" %0, %5\n" /* Load old value. */ \
+ "\tcmp %0, %3\n" /* Compare to expected value. */\
+ "\t"STREQ" %4, %1\n" /* Store new value. */ \
+ \
+ /* Tear down Restartable Atomic Sequence. */ \
+ "2:" \
+ "\tmov %2, #0x00000000\n" \
+ "\tstr %2, [%6]\n" \
+ "\tmov %2, #0xffffffff\n" \
+ "\tstr %2, [%6, #4]\n" \
+ : "=&r" (old), "=m" (*mem), "=&r" (temp) \
+ : "r" (expected), "r" (desired), "m" (*mem), \
+ "r" (ras_start)); \
+ return (old); \
+}
+
+typedef unsigned char bool;
+
+#define SYNC_BOOL_CAS_N(N, TYPE) \
+bool HIDDEN \
+__sync_bool_compare_and_swap_##N (TYPE *ptr, TYPE oldval, \
+ TYPE newval) \
+{ \
+ TYPE actual_oldval \
+ = __sync_val_compare_and_swap_##N (ptr, oldval, newval); \
+ return (oldval == actual_oldval); \
+}
+
+#define SYNC_FETCH_AND_OP_N(N, TYPE, LDR, STR, NAME, OP) \
+TYPE HIDDEN \
+__sync_fetch_and_##NAME##_##N (TYPE *mem, TYPE val) \
+{ \
+ unsigned int old, temp, ras_start; \
+ \
+ ras_start = ARM_RAS_START; \
+ __asm volatile ( \
+ /* Set up Restartable Atomic Sequence. */ \
+ "1:" \
+ "\tadr %2, 1b\n" \
+ "\tstr %2, [%5]\n" \
+ "\tadr %2, 2f\n" \
+ "\tstr %2, [%5, #4]\n" \
+ \
+ "\t"LDR" %0, %4\n" /* Load old value. */ \
+ "\t"OP" %2, %0, %3\n" /* Calculate new value. */ \
+ "\t"STR" %2, %1\n" /* Store new value. */ \
+ \
+ /* Tear down Restartable Atomic Sequence. */ \
+ "2:" \
+ "\tmov %2, #0x00000000\n" \
+ "\tstr %2, [%5]\n" \
+ "\tmov %2, #0xffffffff\n" \
+ "\tstr %2, [%5, #4]\n" \
+ : "=&r" (old), "=m" (*mem), "=&r" (temp) \
+ : "r" (val), "m" (*mem), "r" (ras_start)); \
+ return (old); \
+}
+
+#define SYNC_OP_AND_FETCH_N(N, TYPE, LDR, STR, NAME, OP) \
+TYPE HIDDEN \
+__sync_##NAME##_and_fetch_##N (TYPE *mem, TYPE val) \
+{ \
+ unsigned int old, temp, ras_start; \
+ \
+ ras_start = ARM_RAS_START; \
+ __asm volatile ( \
+ /* Set up Restartable Atomic Sequence. */ \
+ "1:" \
+ "\tadr %2, 1b\n" \
+ "\tstr %2, [%5]\n" \
+ "\tadr %2, 2f\n" \
+ "\tstr %2, [%5, #4]\n" \
+ \
+ "\t"LDR" %0, %4\n" /* Load old value. */ \
+ "\t"OP" %2, %0, %3\n" /* Calculate new value. */ \
+ "\t"STR" %2, %1\n" /* Store new value. */ \
+ \
+ /* Tear down Restartable Atomic Sequence. */ \
+ "2:" \
+ "\tmov %2, #0x00000000\n" \
+ "\tstr %2, [%5]\n" \
+ "\tmov %2, #0xffffffff\n" \
+ "\tstr %2, [%5, #4]\n" \
+ : "=&r" (old), "=m" (*mem), "=&r" (temp) \
+ : "r" (val), "m" (*mem), "r" (ras_start)); \
+ return (old); \
+}
+
+#define EMIT_ALL_OPS_N(N, TYPE, LDR, STR, STREQ) \
+SYNC_LOCK_TEST_AND_SET_N (N, TYPE, LDR, STR) \
+SYNC_LOCK_RELEASE_N (N, TYPE) \
+SYNC_VAL_CAS_N (N, TYPE, LDR, STREQ) \
+SYNC_BOOL_CAS_N (N, TYPE) \
+SYNC_FETCH_AND_OP_N (N, TYPE, LDR, STR, add, "add") \
+SYNC_FETCH_AND_OP_N (N, TYPE, LDR, STR, and, "and") \
+SYNC_FETCH_AND_OP_N (N, TYPE, LDR, STR, or, "orr") \
+SYNC_FETCH_AND_OP_N (N, TYPE, LDR, STR, sub, "sub") \
+SYNC_FETCH_AND_OP_N (N, TYPE, LDR, STR, xor, "eor") \
+SYNC_OP_AND_FETCH_N (N, TYPE, LDR, STR, add, "add") \
+SYNC_OP_AND_FETCH_N (N, TYPE, LDR, STR, and, "and") \
+SYNC_OP_AND_FETCH_N (N, TYPE, LDR, STR, or, "orr") \
+SYNC_OP_AND_FETCH_N (N, TYPE, LDR, STR, sub, "sub") \
+SYNC_OP_AND_FETCH_N (N, TYPE, LDR, STR, xor, "eor")
+
+
+
+EMIT_ALL_OPS_N (1, unsigned char, "ldrb", "strb", "streqb")
+EMIT_ALL_OPS_N (2, unsigned short, "ldrh", "strh", "streqh")
+EMIT_ALL_OPS_N (4, unsigned int, "ldr", "str", "streq")
+
+#endif
Property changes on: libgcc/config/arm/freebsd-atomic.c
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+FreeBSD=%H
\ No newline at end of property
Added: svn:mime-type
## -0,0 +1 ##
+text/plain
\ No newline at end of property
Index: libgcc/config/arm/t-freebsd
===================================================================
--- libgcc/config/arm/t-freebsd (revision 0)
+++ libgcc/config/arm/t-freebsd (working copy)
@@ -0,0 +1,9 @@
+# Just for these, we omit the frame pointer since it makes such a big
+# difference. It is then pointless adding debugging.
+HOST_LIBGCC2_CFLAGS += -fomit-frame-pointer
+
+LIB2ADD_ST += $(srcdir)/config/arm/freebsd-atomic.c
+
+# Use a version of div0 which raises SIGFPE.
+LIB1ASMFUNCS := $(filter-out _dvmd_tls,$(LIB1ASMFUNCS)) _dvmd_lnx
+
Index: libgcc/config/arm/unwind-arm.h
===================================================================
--- libgcc/config/arm/unwind-arm.h (revision 218760)
+++ libgcc/config/arm/unwind-arm.h (working copy)
@@ -48,7 +48,8 @@
if (!tmp)
return 0;
-#if (defined(linux) && !defined(__uClinux__)) || defined(__NetBSD__)
+#if (defined(linux) && !defined(__uClinux__)) || defined(__NetBSD__) \
+ || defined(__FreeBSD__)
/* Pc-relative indirect. */
#define _GLIBCXX_OVERRIDE_TTYPE_ENCODING (DW_EH_PE_pcrel | DW_EH_PE_indirect)
tmp += ptr;
Index: libgcc/config.host
===================================================================
--- libgcc/config.host (revision 218760)
+++ libgcc/config.host (working copy)
@@ -319,6 +319,13 @@
tmake_file="$tmake_file arm/t-arm arm/t-vxworks t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp"
extra_parts="$extra_parts crti.o crtn.o"
;;
+arm*-*-freebsd*) # ARM FreeBSD EABI
+ tmake_file="${tmake_file} arm/t-arm t-fixedpoint-gnu-prefix arm/t-elf"
+ tmake_file="${tmake_file} arm/t-bpabi arm/t-freebsd t-slibgcc-libgcc"
+ tm_file="${tm_file} arm/bpabi-lib.h"
+ unwind_header=config/arm/unwind-arm.h
+ tmake_file="${tmake_file} t-softfp-sfdf t-softfp-excl arm/t-softfp t-softfp"
+ ;;
arm*-*-netbsdelf*)
tmake_file="$tmake_file arm/t-arm arm/t-netbsd t-slibgcc-gld-nover"
;;
Index: libstdc++-v3/configure.host
===================================================================
--- libstdc++-v3/configure.host (revision 218760)
+++ libstdc++-v3/configure.host (working copy)
@@ -352,6 +352,9 @@
;;
esac
;;
+ arm*-*-freebsd*)
+ port_specific_symbol_files="\$(srcdir)/../config/os/gnu-linux/arm-eabi-extra.ver"
+ ;;
powerpc*-*-darwin*)
port_specific_symbol_files="\$(srcdir)/../config/os/bsd/darwin/ppc-extra.ver"
;;
Index: libstdc++-v3/libsupc++/unwind-cxx.h
===================================================================
--- libstdc++-v3/libsupc++/unwind-cxx.h (revision 218760)
+++ libstdc++-v3/libsupc++/unwind-cxx.h (working copy)
@@ -230,7 +230,7 @@
return reinterpret_cast<__cxa_dependent_exception *>(exc + 1) - 1;
}
-#ifdef __ARM_EABI_UNWINDER__
+#if defined(__ARM_EABI_UNWINDER__) && !defined(__FreeBSD__)
static inline bool
__is_gxx_exception_class(_Unwind_Exception_Class c)
{
@@ -304,13 +304,7 @@
c[6] = 'R';
c[7] = '\0';
}
-
-static inline void*
-__gxx_caught_object(_Unwind_Exception* eo)
-{
- return (void*)eo->barrier_cache.bitpattern[0];
-}
-#else // !__ARM_EABI_UNWINDER__
+#else // !__ARM_EABI_UNWINDER__ || __FreeBSD__
// This is the primary exception class we report -- "GNUCC++\0".
const _Unwind_Exception_Class __gxx_primary_exception_class
= ((((((((_Unwind_Exception_Class) 'G'
@@ -334,6 +328,16 @@
<< 8 | (_Unwind_Exception_Class) '+')
<< 8 | (_Unwind_Exception_Class) '\x01');
+const _Unwind_Exception_Class __gxx_forced_unwind_class
+= ((((((((_Unwind_Exception_Class) 'G'
+ << 8 | (_Unwind_Exception_Class) 'N')
+ << 8 | (_Unwind_Exception_Class) 'U')
+ << 8 | (_Unwind_Exception_Class) 'C')
+ << 8 | (_Unwind_Exception_Class) 'F')
+ << 8 | (_Unwind_Exception_Class) 'O')
+ << 8 | (_Unwind_Exception_Class) 'R')
+ << 8 | (_Unwind_Exception_Class) '\0');
+
static inline bool
__is_gxx_exception_class(_Unwind_Exception_Class c)
{
@@ -341,6 +345,12 @@
|| c == __gxx_dependent_exception_class;
}
+static inline bool
+__is_gxx_forced_unwind_class(_Unwind_Exception_Class c)
+{
+ return c == __gxx_forced_unwind_class;
+}
+
// Only checks for primary or dependent, but not that it is a C++ exception at
// all.
static inline bool
@@ -352,7 +362,18 @@
#define __GXX_INIT_PRIMARY_EXCEPTION_CLASS(c) c = __gxx_primary_exception_class
#define __GXX_INIT_DEPENDENT_EXCEPTION_CLASS(c) \
c = __gxx_dependent_exception_class
+#define __GXX_INIT_FORCED_UNWIND_CLASS(c) c = __gxx_forced_unwind_class
+#endif // __ARM_EABI_UNWINDER__ && !__FreeBSD__
+#ifdef __ARM_EABI_UNWINDER__
+static inline void*
+__gxx_caught_object(_Unwind_Exception* eo)
+{
+ return (void*)eo->barrier_cache.bitpattern[0];
+}
+
+#else // !__ARM_EABI_UNWINDER__
+
// GNU C++ personality routine, Version 0.
extern "C" _Unwind_Reason_Code __gxx_personality_v0
(int, _Unwind_Action, _Unwind_Exception_Class,

14
lang/gcc49/files/patch-pr63740-arm Normal file
View File

@ -0,0 +1,14 @@
--- gcc/lra-lives.c 2014/06/16 09:25:26 211700
+++ gcc/lra-lives.c 2014/06/16 09:58:34 211701
@@ -558,7 +558,11 @@
/* It might be 'inheritance pseudo <- reload pseudo'. */
|| (src_regno >= lra_constraint_new_regno_start
&& ((int) REGNO (SET_DEST (set))
- >= lra_constraint_new_regno_start))))
+ >= lra_constraint_new_regno_start)
+ /* Remember to skip special cases where src/dest regnos are
+ the same, e.g. insn SET pattern has matching constraints
+ like =r,0. */
+ && src_regno != (int) REGNO (SET_DEST (set)))))
{
int hard_regno = -1, regno = -1;