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16 Commits

Author SHA1 Message Date
Nick Clifton 9676aeef0d Seperate MSP430 cio syscalls into individual function sections. 
START_FUNC: New macro.
    END_FUNC: New macro.
    exit, isatty, getpid, sc2: Use the new macros.
 2016-02-09 13:44:05 +00:00
DJ Delorie 7d5b16ab9a Build msp430-specific libnosys 
The MSP430 debuggers support I/O on hardware through CIO, so
we can use a CIO-enabled library as the "nosys" library (in
addition to the libsim library, which talks to our simulator)

* configure.in: Don't build default libnosys for msp430
* configure: Regenerate.
* msp430/Makefile: Rename libcio to libnosys.
 2015-12-17 16:51:41 -05:00
DJ Delorie 28d7af216e Update CIO hooks to be more flexible. 
Replace the one hook we had with two to avoid underscore issues.

* msp430/cio.c: Remove, replace with...
* msp430/cio.S: New, this.
 2015-12-17 16:22:52 -05:00
Nick Clifton 3ff65caea5 Always define __high_bsssize, do not just PROVIDE it. 
* msp430/msp430xl-sim.ld (__high_bsssize): Define.
 2015-12-04 10:14:10 +00:00
Nick Clifton c70d8f454a Fix initialisation of .upper.bss for the MSP430. 
* msp430/msp430xl-sim.ld (__high_bsssize): Define.
 2015-11-23 09:00:23 +00:00
Nick Clifton 3b8933900f Add support for persistent data to the MSP430 linker scripts. 
* msp430/msp430-sim.ld: Add .persistent section.
	Tidy up section layout.
	Start RAM above hardware multiply registers.
	* msp430/msp430xl-sim.ld: Likewise.
 2015-10-06 17:33:16 +01:00
Nick Clifton 23066e1b64 * msp430/crt0.S: Remove watchdog disabling code. 2015-08-20 17:19:49 +01:00
Nick Clifton 324bd11706 Add a check that the data area does not overrun the stack. 
* msp430/msp430-sim.ld (.stack): Add an assertion to make sure
	that the data area does not overrun the stack.  PROVIDE a new
	symbol __stack_size to allow the user to set the limit.
	* msp430/msp430xl-sim.ld (.stack): Likewise.
	* rl78/rl78-sim.ld (.stack): Likewise.
	* rl78/rl78.ld (.stack): Likewise.
	* rx/rx-sim.ld (.stack): Likewise.
	* rx/rx.ld (.stack): Likewise.
 2015-05-27 13:30:19 +02:00
Nick Clifton baa681fd38 Adds support for placing MSP430 code and data into either low memory or high memory. 
* msp430/msp430.ld: Delete.
	* msp430/msp430F5438A-l.ld: Delete.
	* msp430/msp430F5438A-s.ld: Delete.
	* msp430/crt_movedata.S: Delete.

	* msp430/Makefile.in (SCRIPTS): Remove msp430.ld.
	(CRT_OBJS): Add crt_move_highdata.o.
	* msp430/memmodel.h (START_CRT_FUNC): New macro.
	(END_CRT_FUNC): New macro.
	(WEAK_DEF): New macro.
	* msp430/crt0.S: Use new macros.
	(move_highdata): New code to initialise the .data section if it is
	held in high memory.

	* msp430/msp430-sim.ld (.data): Add .either.data.
	(.rodata2): Move some read-only data sections here.
	(.text): Add .either.text.
	(.rodata): Add .either.rodata.
	(.bss): Add .either.bss.
	* msp430/msp430xl-sim.ld (MEMORY): Add HIROM.
	(.rodata2): Move some read-only data sections here.
	(.upper.data): New section.  Include notes about how to initialise
	it.
 2015-05-27 13:30:19 +02:00
Nick Clifton b7d6a7c805 * msp430/Makefile.in (CRT_OBJS): Add crt_high_bss.o. 
* msp430/crt0.S (high_bss): Add.
	* msp430/msp430-sim.ld: Add error message if .upper sections are
	detected.
	* msp430/msp430xl-sim.ld (MEMORY): Adjust to better mimic real
	life MCUs.  Add support for upper and lower sections.
 2014-11-13 10:18:57 +00:00
DJ Delorie 787fa74125 2014-10-22 Tim Harder <radhermit@gmail.com> 
* msp430/Makefile.in: respect DESTDIR during install
 2014-10-23 01:49:49 +00:00
Nick Clifton c30356443e * configure.in: Remove config_libnosys=false 
* configure: Regenerated.
	* msp430/nosyscalls.S: Rename to ciosyscalls.S
	* msp430/Makefile.in: Change LIBNOSYS to LIB_CIO.
 2014-09-22 15:26:46 +00:00
Nick Clifton 179e25f0df * msp430/Makefile.in (NOSYS_OBJS): Add unlink.o. 
(SCRIPTS): Remove msp430F5438A-s.ld and msp430F5438A-s.ld.
	* unlink.c: New file.
 2014-04-30 11:30:14 +00:00
DJ Delorie ed94d4a4aa * msp430/Makefile.in (crt0-minrt.o, crtn-minrt.o): New. Build 
from crt0.S with -DMINRT.
(CRT_OBJS): Expand.
(crt_%.o): New rule pattern.  Build multiple objects from crt0.S.
* msp430/crt0.S: Further break out functionality.  Support -DMINRT
that omits all init/fini logic.
* msp430/crtn.S: Likewise.
* msp430/msp430-sim.ld: Wildcard all .crt_* sections, sorted.
* msp430/msp430.ld: Likewise.
* msp430/msp430xl-sim.ld: Likewise.
 2014-01-30 02:46:34 +00:00
Nick Clifton 796a9241b3 * msp430/Makefile.in (SCRIPTS): Add intr_vectors.ld. 
(LIB_CRT): New.
	(CRT_OBJS): New.
	(all): Add dependency upon LIB_CRT.
	(install): Likewise.
	* msp430/msp430-sim.ld: Include intr_vectors.ld.
	KEEP crt code, lowtext code and tm_clone_table.
	Separate the noinit section from the .bss section.
	Allow for extended .debug_line sections.
	* msp430/msp430.ld: Likewise.
	* msp430/msp430F5438A-l.ld: Likewise.
	* msp430/msp430F5438A-s.ld: Likewise.
	* msp430/msp430xl-sim.ld: Likewise
.	* msp430/crt_movedata.S: New.
	* msp430/crt_bss.S: New.
	* msp430/intr_vectors.ld: New.
 2013-09-18 07:38:13 +00:00
DJ Delorie 2f2a304234 [newlib] 
* configure.host (msp430): Add.
* libc/include/machine/ieeefp.h: Add MSP430 support.
* libc/include/machine/setjmp.h: Likewise.
* libc/include/sys/config.h: Likewise.
* libc/machine/configure.in (msp430): Add.
* libc/machine/configure: Regenerate.
* libc/machine/msp430: New directory.

[libgloss]
* configure.in (msp430*-*-elf): Add.
* configure: Regenerate.
* msp430: New directory.
 2013-05-13 21:39:51 +00:00