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Author SHA1 Message Date
Tamar Christina d7d6ad7b6b Add support for Semihosting v2 support for ARM in libgloss. 
Semihosting v2 changes are documented here:
https://developer.arm.com/docs/100863/latest/

The biggest change is the addition of an extensions mechanism
to add more extensions in the future.

Signed-off-by: Tamar Christina <tamar.christina@arm.com>
 2017-07-05 14:41:27 +02:00
Thomas Preud'homme 69f4c40291 Make macro checks ARMv8-M baseline proof 
libgloss:

        * arm/Makefile.in: Add newlib/libc/machine/arm to the include path if
        newlib is present.
        * arm/arm.h: Include acle-compat.h.
        (THUMB_V7_V6M): Rename to ...
        (PREFER_THUMB): This.  Use ACLE macros __ARM_ARCH_ISA_ARM instead of
        __ARM_ARCH_6M__ to decide whether to define it.
        (THUMB1_ONLY): Define for Thumb-1 only targets.
        (THUMB_V7M_V6M): Rename to ...
        (THUMB_VXM): This.  Defined based on __ARM_ARCH_ISA_ARM, excluding
        ARMv7.
        * arm/crt0.S: Use THUMB1_ONLY rather than __ARM_ARCH_6M__,
        !__ARM_ARCH_ISA_ARM rather than THUMB_V7M_V6M for fp enabling, and
        PREFER_THUMB rather than THUMB_V7_V6M.  Rename other occurences of
        THUMB_V7M_V6M to THUMB_VXM.
        * arm/linux-crt0.c: Likewise.
        * arm/redboot-crt0.S: Likewise.
        * arm/swi.h: Likewise.
        * arm/trap.S: Likewise.

newlib:

        * libc/machine/arm/memcpy-stub.c: Use ACLE macros __ARM_ARCH_ISA_THUMB
        and __ARM_ARCH_ISA_ARM to check for Thumb-2 only targets rather than
        __ARM_ARCH and __ARM_ARCH_PROFILE.
        * libc/machine/arm/memcpy.S: Likewise.
        * libc/machine/arm/setjmp.S: Likewise for Thumb-1 only target and
        include acle-compat.h.
        * libc/machine/arm/strcmp.S: Likewise for Thumb-1 and Thumb-2 only
        target and include acle-compat.h.
        * libc/sys/arm/arm.h: Include acle-compat.h.
        (THUMB_V7_V6M): Rename to ...
        (PREFER_THUMB): This.  Use ACLE macro __ARM_ARCH_ISA_ARM instead of
        __ARM_ARCH_6M__ to decide whether to define it.
        (THUMB1_ONLY): Define for Thumb-1 only targets.
        (THUMB_V7M_V6M): Rename to ...
        (THUMB_VXM): This.  Defined based on __ARM_ARCH_ISA_ARM, excluding
        ARMv7.
        * libc/sys/arm/crt0.S: Use PREFER_THUMB rather than THUMB_V7_V6M and
        rename THUMB_V7M_V6M into THUMB_VXM.
        * libc/sys/arm/swi.h: Likewise.
 2016-01-28 11:26:37 +01:00
Nick Clifton 415e1ecce4 * arm/crt0.S: Support armv6-m processors in libgloss. 
* arm/swi.h: Likewise.
	* arm/trap.S: Likewise.
	* arm/redboot-crt0.S: Likewise.
	* arm/linux-crt0.c: Likewise.
	* arm/arm.h: New.
 2011-07-13 15:06:21 +00:00
Kazu Hirata 3e0c6ff3a7 * arm/licfunc.c (do_AngelSWI): Remove. 
* arm/syscalls.c (do_AngelSWI): Remove.
	* arm/swi.h (do_AngelSWI): New.
 2006-12-25 23:05:24 +00:00
Jeff Johnston f9fa511d46 2006-02-07 Paul Brook <paul@codesourcery.com> 
* arm/crt0.S: Add Thumb-2 startup code.
        * arm/redboot-crt0.S: Ditto.
        * arm/libcfunc.c (do_AngelSWI): Use AngelSWIInsn.
        * arm/swi.h (AngelSWIInsn, AngelSWIAsm): Define.
        * arm/trap.S: Disable for Thumb-2.
 2006-02-07 18:46:23 +00:00
Jeff Johnston a7364adeb9 2004-06-09 Toralf Lund <toralf@procaptura.com> 
* arm/crt0.S: Copied from newlib and it now also sets up stacks for
        FIQ and IRQ mode, plus calls hardware_init_hook() and
        software_init_hook() if present.
        * arm/libcfunc.c, arm/swi.h, arm/syscalls.c: Copied
        from newlib.
        * arm/Makefile.in: Build crt0.o, rdpmon-crt0.o, rdimon-crt0.o,
        librdpmon.a, librdimon.a - support file for "bare" setup, as well
        as "RDP" and "RDI" monitors.
        * arm/coff-rdpmon.specs, arm/elf-rdpmon.specs,
        arm/coff-rdimon.specs, arm/elf-rdimon.specs: gcc specs files to go
        with above mentioned support libs and startfiles.
 2004-06-09 19:06:50 +00:00