[PATCH, boehm-gc, AArch64] Add AArch64 support

[Yvan Roux <yvan dot roux at linaro dot org>]

Hi,

this is a backport from gc mainline of the basic AArch64 support (it
covers the Linux and bare machine mode). I tested it on the Foundation
model with enabling the objc frontend, and passing the testsuite
manually (maybe I miss-configured it, but it seems that the boehm-gc
testsuite is not cross-environment friendly, as the gctest script
looks for the host gcc build tree), and everything is fine, except the
thread_leak_test which has a different output than the x86 one:

x86 thread_leak_test output

Leaked composite object at 0x2aaaaab05fe0
(/work/sources/gcc-fsf/bgc/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c:21,
sz=4, NORMAL)

Leaked composite object at start: 0x2aaaaab03fa0, appr. length: 40
Leaked composite object at 0x2aaaaab05ec0
(/work/sources/gcc-fsf/bgc/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c:21,
sz=4, NORMAL)

Leaked composite object at 0x2aaaaab05f20
(/work/sources/gcc-fsf/bgc/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c:21,
sz=4, NORMAL)

Leaked composite object at start: 0x2aaaaab03f50, appr. length: 40
Leaked composite object at start: 0x2aaaaab03f78, appr. length: 40
Leaked composite object at 0x2aaaaab05ef0
(/work/sources/gcc-fsf/bgc/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c:21,
sz=4, NORMAL)

Leaked composite object at start: 0x2aaaaab03fa0, appr. length: 40
Leaked composite object at 0x2aaaaab05e00
(/work/sources/gcc-fsf/bgc/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c:21,
sz=4, NORMAL)

Leaked composite object at start: 0x2aaaaab03f78, appr. length: 40

AArch64 thread_leak_test output:

Leaked composite object at 0x7f91e14ef0
(/work/sources/gcc-fsf/bgc/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c:21,
sz=4, NORMAL)

Leaked composite object at 0x7f91e14fe0
(/work/sources/gcc-fsf/bgc/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c:21,
sz=4, NORMAL)

Leaked composite object at 0x7f91e14e00
(/work/sources/gcc-fsf/bgc/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c:21,
sz=4, NORMAL)

Leaked composite object at 0x7f91e14e30
(/work/sources/gcc-fsf/bgc/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c:21,
sz=4, NORMAL)

Leaked composite object at 0x7f91e14fe0
(/work/sources/gcc-fsf/bgc/boehm-gc/testsuite/boehm-gc.c/thread_leak_test.c:21,
sz=4, NORMAL)


Regards,
Yvan

2013-03-16  Yvan Roux <yvan.roux@linaro.org>

        * include/private/gcconfig.h (AARCH64): New macro (defined
only if
        __aarch64__).
        * include/private/gcconfig.h (mach_type_known): Update comment
adding
        ARM AArch64 target.
        * include/private/gcconfig.h (NOSYS, mach_type_known,
CPP_WORDSZ,
        MACH_TYPE, ALIGNMENT, HBLKSIZE, OS_TYPE, LINUX_STACKBOTTOM,
        USE_GENERIC_PUSH_REGS, DYNAMIC_LOADING, DATASTART, DATAEND,
        STACKBOTTOM): Define for AArch64.

Attachment: boehm-gc-aarch64.patch
Description: Binary data