+2007-02-13 Paul Brook <paul@codesourcery.com>
+
+ * 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.
+
2007-02-13 Ian Lance Taylor <iant@google.com>
* common.opt: Add Wstrict-overflow and Wstrict-overflow=.
tm_file="$tm_file arm/aout.h arm/arm.h"
;;
arm*-*-uclinux*) # ARM ucLinux
- tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h arm/linux-gas.h arm/linux-elf.h arm/uclinux-elf.h"
+ tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/linux-gas.h arm/uclinux-elf.h arm/uclinux-elf.h"
tmake_file="arm/t-arm arm/t-arm-elf"
+ case ${target} in
+ arm*-*-uclinux-*eabi)
+ tm_file="$tm_file arm/bpabi.h arm/uclinux-eabi.h"
+ tmake_file="$tmake_file arm/t-bpabi"
+ # The BPABI long long divmod functions return a 128-bit value in
+ # registers r0-r3. Correctly modeling that requires the use of
+ # TImode.
+ need_64bit_hwint=yes
+ # The EABI requires the use of __cxa_atexit.
+ default_use_cxa_atexit=yes
+ esac
+ tm_file="$tm_file arm/aout.h arm/arm.h"
;;
arm*-*-ecos-elf)
tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h arm/ecos-elf.h"
&& (TARGET_DEFAULT & MASK_APCS_FRAME))
warning (0, "-g with -mno-apcs-frame may not give sensible debugging");
- /* If stack checking is disabled, we can use r10 as the PIC register,
- which keeps r9 available. */
- if (flag_pic && TARGET_SINGLE_PIC_BASE)
- arm_pic_register = TARGET_APCS_STACK ? 9 : 10;
-
if (TARGET_APCS_FLOAT)
warning (0, "passing floating point arguments in fp regs not yet supported");
ARM_DOUBLEWORD_ALIGN ? "8, 32 or 64": "8 or 32");
}
+ /* If stack checking is disabled, we can use r10 as the PIC register,
+ which keeps r9 available. The EABI specifies r9 as the PIC register. */
+ if (flag_pic && TARGET_SINGLE_PIC_BASE)
+ arm_pic_register = (TARGET_APCS_STACK || TARGET_AAPCS_BASED) ? 9 : 10;
+
if (arm_pic_register_string != NULL)
{
int pic_register = decode_reg_name (arm_pic_register_string);
do not use -lfloat. */
#undef LIBGCC_SPEC
-/* Use the AAPCS type for wchar_t, or the previous Linux default for
- non-AAPCS. */
-#undef WCHAR_TYPE
-#define WCHAR_TYPE (TARGET_AAPCS_BASED ? "unsigned int" : "long int")
-
/* Clear the instruction cache from `beg' to `end'. This makes an
inline system call to SYS_cacheflush. It is modified to work with
both the original and EABI-only syscall interfaces. */
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "int"
-#undef WCHAR_TYPE
-#define WCHAR_TYPE "long int"
+/* Use the AAPCS type for wchar_t, or the previous Linux default for
+ non-AAPCS. */
+#undef WCHAR_TYPE
+#define WCHAR_TYPE (TARGET_AAPCS_BASED ? "unsigned int" : "long int")
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE BITS_PER_WORD
--- /dev/null
+/* Definitions for ARM EABI ucLinux
+ Copyright (C) 2006 Free Software Foundation, Inc.
+ Contributed by Paul Brook <paul@codesourcery.com>
+
+ 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 2, 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+/* Override settings that are different to the uclinux-elf or
+ bpabi defaults. */
+
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT (MASK_SINGLE_PIC_BASE | MASK_INTERWORK)
+
+/* On EABI GNU/Linux, we want both the BPABI builtins and the
+ GNU/Linux builtins. */
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ TARGET_BPABI_CPP_BUILTINS(); \
+ 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)
+
+#undef SUBTARGET_EXTRA_LINK_SPEC
+#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi"
+
+/* We default to the "aapcs-linux" ABI so that enums are int-sized by
+ default. */
+#undef ARM_DEFAULT_ABI
+#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
+
+/* Clear the instruction cache from `beg' to `end'. This makes an
+ inline system call to SYS_cacheflush. */
+#undef CLEAR_INSN_CACHE
+#define CLEAR_INSN_CACHE(BEG, END) \
+{ \
+ register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \
+ register unsigned long _end __asm ("a2") = (unsigned long) (END); \
+ register unsigned long _flg __asm ("a3") = 0; \
+ register unsigned long _scno __asm ("r7") = 0xf0002; \
+ __asm __volatile ("swi 0x0 @ sys_cacheflush" \
+ : "=r" (_beg) \
+ : "0" (_beg), "r" (_end), "r" (_flg), "r" (_scno)); \
+}
+
/* 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
#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}"
#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}}"
git://gcc.gnu.org / gcc.git / commitdiff