Kazu Hirata - [patch] Add support for arm-none-linux-gnueabi (Take 2) (original) (raw)

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Hi,

Attached is a revised patch to add support for arm-none-linux-gnueabi.

The previous version is at

http://gcc.gnu.org/ml/gcc-patches/2005-08/msg01221.html

In this iteration, I have ported all changes relevant to arm-none-linux-gnueabi from the csl-arm branch. In fact, config/arm/{linux-eabi.h,t-linux-eabi} provided in this patch are identical to those on csl-arm branch.

One note about the top-level configure change. Since ARM uses its own unwinding routines, libjava and libobjc don't build. For now, I've put them in nonconfigdirs.

The hunk from boehm-gc/include/private/gc_locks.h is to prevent an invalid instruction

swp r0, r4, [r0]

At least the assembler didn't like this.

Admittedly, this patch has gottten rather big and possibly intrusive. Richard, it's your call whether this is acceptable for stage 3.

Built "Hello, world" in both C and C++ using a patched version of glibc-2.3.4 and confirmed that it runs on real hardware. OK to apply?

Kazu Hirata

/ 2005-09-15 Kazu Hirata kazu@codesourcery.com

* configure.in (arm-*-linux-gnueabi): Add to noconfigdirs
target-libffi, target-qthreads, target-libjava, and
targetlibobjc.
* configure: Regenerate.

gcc/ 2005-09-15 Kazu Hirata kazu@codesourcery.com

Merge from csl-arm-20050325-branch:
2005-09-07  Paul Brook  <paul@codesourcery.com>
* config/arm/linux-eabi.h (SUBTARGET_EXTRA_LINK_SPEC): Prepend a
space to string.

2005-04-30  Paul Brook  <paul@codesourcery.com>
* config/arm/bpabi.h (TARGET_DEFAULT): Define.
* config/arm/linux-eabi.h (SUBTARGET_CPU_DEFAULT): Define.

2005-03-07  Daniel Jacobowitz  <dan@codesourcery.com>
* config/arm/arm.c (arm_all_abis): Add aapcs-linux.
(arm_override_options): Use TARGET_AAPCS_BASED.
* config/arm/arm.h (enum arm_abi_type): Add ARM_ABI_AAPCS_LINUX.
(PTRDIFF_TYPE): Use int for AAPCS.
(DEFAULT_SHORT_ENUMS): Use false for aapcs-linux.
* config/arm/linux-eabi.h (ARM_DEFAULT_ABI, WCHAR_TYPE): Define.
(DEFAULT_SHORT_ENUMS): Delete.
* doc/invoke.texi (ARM Options): Document -mabi=aapcs-linux.

2004-12-15  Daniel Jacobowitz  <dan@codesourcery.com>
* config/arm/arm.h (DEFAULT_SHORT_ENUMS): Wrap in #ifndef.
* config/arm/linux-eabi.h (DEFAULT_SHORT_ENUMS): Define to 0.
* config/arm/t-linux-eabi (TARGET_LIBGCC2_CFLAGS): Set to -fPIC.

2004-12-03  Mark Mitchell  <mark@codesourcery.com>
* config/arm/linux-eabi.h (LIBGCC_SPEC): Do not define.

2004-11-22  Mark Mitchell  <mark@codesourcery.com>
* config.gcc (arm*-*-linux-gnueabi): Use __cxa_atexit.

2004-11-19  Mark Mitchell  <mark@codesourcery.com>
* config.gcc (arm*-*-linux-gnueabi): Add it.
* config/arm/bpabi.h (FPUTYPE_DEFAULT): Undefine it before
redefining it.
(TARGET_OS_CPP_BUILTINS): Likeiwse.
* config/arm/linux-eabi.h: New file.
* config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): New macro.
(LINUX_TARET_LINK_SPEC): Likewise.
(LINK_SPEC): Use it.
* config/arm/t-linux-eabi: New file.

boehm-gc/ 2005-09-10 Kazu Hirata kazu@codesourcery.com

* include/private/gc_locks.h (GC_test_and_set): Change the
constraint of the first operand to '0'.

libcpp/ 2005-09-10 Kazu Hirata kazu@codesourcery.com

* configure.ac: Require 64-bit int for arm*-*-*eabi*.
* configure: Regenerate.

libstdc++/ 2005-09-10 Kazu Hirata kazu@codesourcery.com

Merge from csl-arm-20050325-branch:
2004-12-15  Daniel Jacobowitz  <dan@codesourcery.com>
* libstdc++-v3/config/linker-map.gnu: Add ARM EABI symbols.

Index: configure.in

RCS file: /home/gcc/repos/gcc/gcc/configure.in,v retrieving revision 1.364 diff -u -d -p -r1.364 configure.in --- configure.in 1 Sep 2005 17:42:55 -0000 1.364 +++ configure.in 15 Sep 2005 16:46:14 -0000 @@ -475,6 +475,10 @@ case "${target}" in arm--elf | strongarm--elf | xscale--elf | arm*--eabi ) noconfigdirs="$noconfigdirs target-libffi target-qthreads" ;; + arm--linux-gnueabi) + noconfigdirs="$noconfigdirs target-libffi target-qthreads" + noconfigdirs="$noconfigdirs target-libjava target-libobjc" + ;; arm--symbianelf) noconfigdirs="$noconfigdirs ${libgcj} target-libiberty" ;; Index: boehm-gc/include/private/gc_locks.h

RCS file: /home/gcc/repos/gcc/gcc/boehm-gc/include/private/gc_locks.h,v retrieving revision 1.10 diff -u -d -p -r1.10 gc_locks.h --- boehm-gc/include/private/gc_locks.h 19 Apr 2005 16:01:38 -0000 1.10 +++ boehm-gc/include/private/gc_locks.h 15 Sep 2005 20:50:20 -0000 @@ -209,7 +209,7 @@ /* See linuxthreads/sysdeps/arm/pt-machine.h in glibc-2.1 */ asm volatile("swp %0, %1, [%2]" : "=r"(oldval) - : "r"(1), "r"(addr) + : "0"(1), "r"(addr) : "memory"); return oldval; } Index: gcc/config.gcc

RCS file: /home/gcc/repos/gcc/gcc/gcc/config.gcc,v retrieving revision 1.565 diff -u -d -p -r1.565 config.gcc --- gcc/config.gcc 1 Sep 2005 17:44:37 -0000 1.565 +++ gcc/config.gcc 13 Sep 2005 05:14:24 -0000 @@ -671,10 +671,26 @@ arm*--netbsd) use_collect2=yes ;; arm*--linux) # ARM GNU/Linux with ELF - tm_file="dbxelf.h elfos.h linux.h arm/elf.h arm/linux-gas.h arm/linux-elf.h arm/aout.h arm/arm.h" - tmake_file="${tmake_file} arm/t-arm arm/t-linux" + tm_file="dbxelf.h elfos.h linux.h arm/elf.h arm/linux-gas.h arm/linux-elf.h" + tmake_file="${tmake_file} t-linux arm/t-arm" extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o" gnu_ld=yes + case ${target} in + arm*--linux-gnueabi) + tm_file="$tm_file arm/bpabi.h arm/linux-eabi.h" + tmake_file="$tmake_file arm/t-arm-elf arm/t-bpabi arm/t-linux-eabi" + # The BPABI long long divmod functions return a 128-bit value in + # registers r0-r3. Correctly modeling that requires the use of + # TImode. + need_64bit_hwint=yes + # The EABI requires the use of __cxa_atexit. + default_use_cxa_atexit=yes + ;; + ) + tmake_file="$tmake_file arm/t-linux" + ;; + esac + 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" Index: gcc/config/arm/arm.c

RCS file: /home/gcc/repos/gcc/gcc/gcc/config/arm/arm.c,v retrieving revision 1.479 diff -u -d -p -r1.479 arm.c --- gcc/config/arm/arm.c 10 Sep 2005 08:28:28 -0000 1.479 +++ gcc/config/arm/arm.c 13 Sep 2005 05:14:24 -0000 @@ -673,7 +673,8 @@ static const struct abi_name arm_all_abi {"apcs-gnu", ARM_ABI_APCS}, {"atpcs", ARM_ABI_ATPCS}, {"aapcs", ARM_ABI_AAPCS}, - {"iwmmxt", ARM_ABI_IWMMXT} + {"iwmmxt", ARM_ABI_IWMMXT}, + {"aapcs-linux", ARM_ABI_AAPCS_LINUX} }; /* Return the number of bits set in VALUE. / @@ -1194,7 +1195,7 @@ arm_override_options (void) flag_schedule_insns = flag_schedule_insns_after_reload = 0; / Override the default structure alignment for AAPCS ABI. */ - if (arm_abi == ARM_ABI_AAPCS) + if (TARGET_AAPCS_BASED) arm_structure_size_boundary = 8; if (structure_size_string != NULL) @@ -14527,7 +14528,7 @@ arm_promote_prototypes (tree t ATTRIBUTE static bool arm_default_short_enums (void) { - return TARGET_AAPCS_BASED; + return TARGET_AAPCS_BASED && arm_abi != ARM_ABI_AAPCS_LINUX; } Index: gcc/config/arm/arm.h

RCS file: /home/gcc/repos/gcc/gcc/gcc/config/arm/arm.h,v retrieving revision 1.289 diff -u -d -p -r1.289 arm.h --- gcc/config/arm/arm.h 20 Aug 2005 10:31:41 -0000 1.289 +++ gcc/config/arm/arm.h 13 Sep 2005 05:14:24 -0000 @@ -279,7 +279,8 @@ enum arm_abi_type ARM_ABI_APCS, ARM_ABI_ATPCS, ARM_ABI_AAPCS, - ARM_ABI_IWMMXT + ARM_ABI_IWMMXT, + ARM_ABI_AAPCS_LINUX }; extern enum arm_abi_type arm_abi; @@ -501,6 +502,10 @@ extern int arm_structure_size_boundary; #define SIZE_TYPE (TARGET_AAPCS_BASED ? "unsigned int" : "long unsigned int") #endif +#ifndef PTRDIFF_TYPE +#define PTRDIFF_TYPE (TARGET_AAPCS_BASED ? "int" : "long int") +#endif + /* AAPCS requires that structure alignment is affected by bitfields. */ #ifndef PCC_BITFIELD_TYPE_MATTERS #define PCC_BITFIELD_TYPE_MATTERS TARGET_AAPCS_BASED Index: gcc/config/arm/bpabi.h

RCS file: /home/gcc/repos/gcc/gcc/gcc/config/arm/bpabi.h,v retrieving revision 1.13 diff -u -d -p -r1.13 bpabi.h --- gcc/config/arm/bpabi.h 28 Jun 2005 19:51:30 -0000 1.13 +++ gcc/config/arm/bpabi.h 13 Sep 2005 05:14:24 -0000 @@ -30,8 +30,13 @@ #define TARGET_UNWIND_INFO 1 /* Section 4.1 of the AAPCS requires the use of VFP format. / +#undef FPUTYPE_DEFAULT #define FPUTYPE_DEFAULT FPUTYPE_VFP +/ EABI targets should enable interworking by default. / +#undef TARGET_DEFAULT +#define TARGET_DEFAULT MASK_INTERWORK + / The ARM BPABI functions return a boolean; they use no special calling convention. */ #define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) TARGET_BPABI @@ -101,6 +106,7 @@ }
while (false) +#undef TARGET_OS_CPP_BUILTINS #define TARGET_OS_CPP_BUILTINS()
TARGET_BPABI_CPP_BUILTINS() Index: gcc/config/arm/linux-elf.h

RCS file: /home/gcc/repos/gcc/gcc/gcc/config/arm/linux-elf.h,v retrieving revision 1.55 diff -u -d -p -r1.55 linux-elf.h --- gcc/config/arm/linux-elf.h 5 Aug 2005 03:20:10 -0000 1.55 +++ gcc/config/arm/linux-elf.h 13 Sep 2005 05:14:24 -0000 @@ -81,18 +81,22 @@ #define ENDFILE_SPEC
"%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s" -#undef LINK_SPEC -#define LINK_SPEC "%{h*} %{version:-v}
+#define LINUX_TARGET_INTERPRETER "/lib/ld-linux.so.2" + +#define LINUX_TARGET_LINK_SPEC "%{h*} %{version:-v}
%{b}
%{static:-Bstatic}
%{shared:-shared}
%{symbolic:-Bsymbolic}
%{rdynamic:-export-dynamic}
- %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}
+ %{!dynamic-linker:-dynamic-linker " LINUX_TARGET_INTERPRETER "}
-X
%{mbig-endian:-EB}"
SUBTARGET_EXTRA_LINK_SPEC +#undef LINK_SPEC +#define LINK_SPEC LINUX_TARGET_LINK_SPEC + #define TARGET_OS_CPP_BUILTINS()
do
{
Index: gcc/doc/invoke.texi

RCS file: /home/gcc/repos/gcc/gcc/gcc/doc/invoke.texi,v retrieving revision 1.676 diff -u -d -p -r1.676 invoke.texi --- gcc/doc/invoke.texi 6 Sep 2005 10:59:50 -0000 1.676 +++ gcc/doc/invoke.texi 13 Sep 2005 05:14:24 -0000 @@ -7137,7 +7137,7 @@ architectures: @item -mabi=@var{name} @opindex mabi Generate code for the specified ABI@. Permissible values are: @samp{apcs-gnu}, -@samp{atpcs}, @samp{aapcs} and @samp{iwmmxt}. +@samp{atpcs}, @samp{aapcs}, @samp{aapcs-linux} and @samp{iwmmxt}. @item -mapcs-frame @opindex mapcs-frame Index: libcpp/configure

RCS file: /home/gcc/repos/gcc/gcc/libcpp/configure,v retrieving revision 1.19 diff -u -d -p -r1.19 configure --- libcpp/configure 24 Jul 2005 03:44:26 -0000 1.19 +++ libcpp/configure 13 Sep 2005 05:14:24 -0000 @@ -8218,7 +8218,7 @@ fi case $target in alpha*-- |
- arm*--eabi |
+ arm*--eabi |
arm--symbianelf |
x86_64-- |
ia64-- |
Index: libcpp/configure.ac

RCS file: /home/gcc/repos/gcc/gcc/libcpp/configure.ac,v retrieving revision 1.16 diff -u -d -p -r1.16 configure.ac --- libcpp/configure.ac 24 Jul 2005 03:44:26 -0000 1.16 +++ libcpp/configure.ac 13 Sep 2005 05:14:24 -0000 @@ -113,7 +113,7 @@ fi m4_changequote(,) case $target in alpha*-- |
- arm*--eabi |
+ arm*--eabi |
arm--symbianelf |
x86_64-- |
ia64-- |
Index: libstdc++-v3/config/linker-map.gnu

RCS file: /home/gcc/repos/gcc/gcc/libstdc++-v3/config/linker-map.gnu,v retrieving revision 1.84 diff -u -d -p -r1.84 linker-map.gnu --- libstdc++-v3/config/linker-map.gnu 26 Aug 2005 21:10:58 -0000 1.84 +++ libstdc++-v3/config/linker-map.gnu 13 Sep 2005 05:14:24 -0000 @@ -581,10 +581,12 @@ CXXABI_1.3 { __cxa_bad_cast; __cxa_bad_typeid; __cxa_begin_catch;

+#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi" + +/* Use ld-linux.so.3 so that it will be possible to run "classic"

+# CLEAR_INSN_CACHE in linux-gas.h does not work in Thumb mode. +MULTILIB_OPTIONS = +MULTILIB_DIRNAMES =

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