Commit Graph

493 Commits

Author SHA1 Message Date
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
Anton Kolesov acdfcb0a0a Add support for ARC to libgloss
ChangeLog:
2015-11-12  Anton Kolesov  <Anton.Kolesov@synopsys.com>

	* configure.in: Add ARC support to libgloss.
	* configure: Regenerate.

libgloss/ChangeLog:
2015-11-12  Anton Kolesov  <Anton.Kolesov@synopsys.com>

	* configure: Add ARC support.
	* configure.in: Likewise.
	* arc/Makefile.in: Likewise.
	* arc/aclocal.m4: Likewise.
	* arc/configure: Likewise.
	* arc/configure.in: Likewise.
	* arc/crt0.S: Likewise.
	* arc/libcfunc.c: Likewise.
	* arc/nsim-syscall.h: Likewise.
	* arc/nsim-syscalls.c: Likewise.
	* arc/nsim.specs: Likewise.
	* arc/sbrk.c: Likewise.
2015-11-12 14:11:47 +01:00
DJ Delorie 9e8f756124 * rl78/crt0.S (_start): Fixed code that clears .bss 2015-10-20 21:37:06 -04:00
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
Jeff Johnston dc09f27aaa Add support for FT32 platform. 2015-09-04 13:13:30 -04:00
Nick Clifton 9eb50ea21b oops - forgot to add PR number to ChangeLog entry. 2015-08-24 10:05:19 +01:00
Nick Clifton 23066e1b64 * msp430/crt0.S: Remove watchdog disabling code. 2015-08-20 17:19:49 +01:00
Jeff Johnston 30c6a3088b or1k: Typo fixes
Wrong paranthesis and an incorrect symbol name are fixed.

          * or1k/boards/optimsoc.S: Fix symbol name
          * or1k/crt0.S: Remove paranthesis
2015-08-07 15:02:03 -04:00
Jeff Johnston 31cf34f849 or1k: Allow exception nesting
Allow exceptions to be nested, which is especially useful with urgent
    interrupts while processing an exception.

    The implementation counts up the nesting level with each call to an
    exception. In the outer exception (level 1), the exception stack is
    started. All nested exceptions just reserve the redzone (scratch
    memory that may be used by compiler) and exception context on the
    stack, but then process on the same scratch.

    Restriction: Impure pointers are shared among all exceptions. This may
    be solved by creating an impure data structure in the stack frame with
    each nested exception.

       * or1k/crt0.S: Add exception nesting
       * or1k/exceptions-asm.S: ditto
       * or1k/util.c: ditto
2015-08-07 15:02:03 -04:00
Jeff Johnston 0d04c03829 or1k: Make heap end globally visible
Boards may change the initial value from _end to another value.

           * or1k/sbrk.c: Make heap end globally visible
2015-08-07 15:01:50 -04:00
Nick Clifton 9698cc0f33 This is part of a larger fix for RL78 complex relocs - they need an absolute symbol at address 0 that is not part of the *ABS* section.
* rl78/rl78-sim.ld: Provide a value for __rl78_abs__.
	* rl78/rl78.ld: Likewise.
2015-08-04 13:38:27 +01:00
Andre Simoes Dias Vieira c028685518 Change to nano.specs to add nano's include dir
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-07-14 15:55:18 +02:00
Jeff Johnston bb5cb3afb5 or1k: Add missing initialization of impure ptr
* or1k/impure.c: Fix initialization of impure ptr
2015-05-27 13:30:20 +02:00
Jeff Johnston 5eb4a1666d or1k: set heap start for optimsoc-gzll
- With the gzll kernel we have two different loading options:

  - If the image is loaded to the global memory, the bootstrapping
    loads the kernel to local memory. Applications are loaded on
    demand. The heap then starts right after bss.

  - If the image is pre-loaded to the local memory it includes the
    application binaries right after bss. The heap then starts after
    the application objects.

- We can check if this is a gzll kernel as it has the string "gzll" at
  0x2000. At 0x200c we then find the end of the application objects in
  the image. If there is no global memory we set _or1k_heap_start to
  this value.

    * or1k/boards/optimsoc.S: Heap for gzll kernel
2015-05-27 13:30:20 +02:00
Jeff Johnston 58efeedd16 or1k: Make heap start configurable
- Previously the heap started right after the bss section. This can now
  be configured by changing the _or1k_heap_start symbol that defaults to
  the old value (&end). In board_init_early, we can now set this to
  another value.

    * or1k/sbrk.c: Allow for different heap start
2015-05-27 13:30:20 +02:00
Jeff Johnston aa26b78462 or1k: UART also accept timeout interrupt
- The UART interrupt only handled receiver FIFO full interrupts, but we
  also want to handle timeout interrupts.

    * or1k/or1k_uart.c: Fix interrupts
2015-05-27 13:30:20 +02:00
Jeff Johnston 58e5719a0e Bug fix in timer for or1k
- Properly set the interrupt pending flag in the timer mode register.

    * or1k/timer.c: Properly set interrupt flags
2015-05-27 13:30:20 +02:00
Jeff Johnston b46d3b5536 Store entire context for or1k
- Store the exception program counter (from EPCR) and exception status
  register (from ESR) also during the exception. A runtime system may
  replace them thereby to implement a thread switch.

    * or1k/exception-asm.S: Store missing state
2015-05-27 13:30:20 +02:00
Jeff Johnston a6342974b0 Fix exception stack frame for or1k
- We do not need a red zone here, as we do not operate on the current
  stack, but always use the clear exception stack. Also reserve two
  extra words for the context to store EPCR and ESR.

    * or1k/crt0.S: Fix exception stack frame
    * or1k/exception-asm.S: ditto
2015-05-27 13:30:19 +02:00
Jeff Johnston 132030fcf2 Fix interrupt handling for or1k.
- During interrupt handling the PICSR, table pointers and current
  interrupt line have been saved in incorrect registers and/or stored on
  the stack.

- Save the pointer in r16/r18, PICSR in r20 and the current interrupt
  line in r22. Those are callee-saved registers, so that the register
  values will be preserved.

        * or1k/interruts-asm.S: Change registers to callee-saved.
2015-05-27 13:30:19 +02:00
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
Mike Frysinger e6101f3008 libgloss: mcore: add custom syscall header
The mcore simulator has a unique set of syscall numbers.  Add a header
that matches reality since the common one doesn't.
2015-04-23 22:03:45 +02:00
Mike Frysinger 6803327326 libgloss: arm: fix copy & paste in syscall.h
This header was clearly copied from the common syscall.h and customized,
but the header comment is no longer accurate -- this isn't the general
file anymore.
2015-04-23 22:03:45 +02:00
Nick Clifton cd0d459135 For the RX port, avoid using string instructions when __RX_DISALLOW_STRING_INSNS__ is defined.
* rx/crt0.S (_start): If string instructions are not allowed,
	avoid using SMOVF.

	* libc/machine/rx/memchr.S: Add non-string insn using version.
	* libc/machine/rx/memcpy.S: Likewise.
	* libc/machine/rx/memmove.S: Likewise.
	* libc/machine/rx/mempcpy.S: Likewise.
	* libc/machine/rx/strcat.S: Likewise.
	* libc/machine/rx/strcmp.S: Likewise.
	* libc/machine/rx/strcpy.S: Likewise.
	* libc/machine/rx/strlen.S: Likewise.
	* libc/machine/rx/strncat.S: Likewise.
	* libc/machine/rx/strncmp.S: Likewise.
	* libc/machine/rx/strncpy.S: Likewise.
2015-04-23 21:57:13 +02:00
Nick Clifton 45d0b17928 Add .note and DWARF3 sections to RX linker scripts.
* rx/rx.ld: Add .note and DWARF3 sections.
	* rx/rx-sim.ld: Likewise.
2015-04-23 21:57:13 +02:00
Nick Clifton 61a2d9dedb Always include the .csstart section in RL78 executables.
* rl78/rl78.ld (.csstart): Add a KEEP directive.
	* rl78/rl78-sim.ld (.csstart): Add a KEEP directive.
2015-04-23 21:57:12 +02:00
Nick Clifton e185d3febe * v850/sim.ld: Add a .note.renesas section. 2015-03-05 11:26:59 +00:00
Corinna Vinschen 8d98f956cc * arm/crt0.S: Initialise __heap_limit when ARM_RDI_MONITOR is defined.
* arm/syscalls.c: define __heap_limit global symbol.
	* arm/syscalls.c (_sbrk): Honour __heap_limit.
2015-02-17 09:30:52 +00:00
Corinna Vinschen 19e714bcee * or1k/or1k_uart.c: Write bugfix and cleanup/documentation.
* or1k/or1k_uart.h: Cleanup.
2015-02-11 13:33:40 +00:00
Yaakov Selkowitz 5ae2368e92 * sparc/crt0.S: Declare use of system registers.
* sparc/cygmon-crt0.S: Ditto.
* sparc/erc32-crt0.S: Ditto.
* sparc/traps.S: Ditto.
2015-01-22 17:38:39 +00:00
Eric Botcazou bf8f43ae8a * COPYING.LIBGLOSS: Add Controls and Data Services copyright.
* COPYING.NEWLIB: Likewise.
libgloss/
	* configure.in: Add Visium support.
	* configure: Regenerate.
	* visium/: New directory.
newlib/
	* configure.host: Add Visium support.
	* libc/machine/configure.in: Likewise.
	* libc/machine/configure: Regenerate.
	* libc/machine/visium/: New directory.
	* libc/include/machine/setjmp.h (_JBLEN): Define for Visium.
	* libc/include/machine/ieeefp.h (__IEEE_BIG_ENDIAN): Likewise.
	* libc/include/machine/time.h (_CLOCKS_PER_SEC_): Likewise.
2015-01-21 18:27:47 +00:00
DJ Delorie a098aad30b * rl78/crt0.S: Initialize .saddr. Avoid using SEL.
* rl78/rl78-sim.ld: Add .saddr/.frodata section.
* rl78/rl78.ld: Likewise.
* rl78/rl78-sim.ld: Make room for virtual register banks.
* rl78/rl78.ld: Likewise.

* rl78/vregs.h: New.
* rl78-sys.h: Use it.
* rl78/swrite.S: New.
* rl78/Makefile.in: Build it.
* rl78/write.c: Use it.
2015-01-20 18:43:36 +00:00
DJ Delorie 70e52cba1b * rl78/crt0.S: Initialize .saddr. Avoid using SEL.
* rl78/rl78-sim.ld: Add .saddr/.frodata section.
* rl78/rl78.ld: Likewise.
* rl78/rl78-sim.ld: Make room for virtual register banks.
* rl78/rl78.ld: Likewise.

* rl78/vregs.h: New.
* rl78-sys.h: Use it.
* rl78/swrite.S: New.
* rl78/Makefile.in: Build it.
* rl78/write.c: Use it.
2015-01-16 22:21:34 +00:00
Corinna Vinschen f91272b8c2 * or1k/include/or1k-sprs.h: New auto-generated header file. 2015-01-14 09:56:02 +00:00
Jeff Johnston ba913653a6 2015-01-05 Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
* lm32/Makefile.in (install): Respect DESTDIR.
        (install-scripts): Ditto.
        * mep/Makefile.in (install): Ditto.
        * mt/Makefile.in (install): Ditto.
        * rl78/Makefile.in (install): Ditto.
2015-01-05 17:36:34 +00:00
Anthony Green 47c98af2ba The moxie sub.l instruction is now just sub. 2014-12-27 12:18:56 +00:00
Jeff Johnston ab42ec30e6 2014-12-15 Stefan Wallentowitz <stefan.wallentowitz@tum.de>
* or1k/Makefile.in: Build and install board libraries
        * or1k/board.h: New file
        * or1k/boards/README: New file
        * or1k/boards/atlys.S: New file
        * or1k/boards/de0_nano.S: New file
        * or1k/boards/ml501.S: New file
        * or1k/boards/ml509.S: New file
        * or1k/boards/optimsoc.S: New file
        * or1k/boards/or1ksim-uart.S: New file
        * or1k/boards/or1ksim.S: New file
        * or1k/boards/ordb1a3pe1500.S: New file
        * or1k/boards/ordb2a.S: New file
        * or1k/boards/orpsocrefdesign.S: New file
        * or1k/boards/tmpl.S: New file
        * or1k/boards/tmpl.c: New file
2014-12-15 20:22:28 +00:00
Jeff Johnston 68a9101237 2014-12-15 Stefan Wallentowitz <stefan.wallentowitz@tum.de>
* or1k/Makefile.in: Add libor1k
        * or1k/README: New file
        * or1k/caches-asm.S: New file
        * or1k/exceptions-asm.S: New file
        * or1k/exceptions.c: New file
        * or1k/impure.c: New file
        * or1k/include/or1k-nop.h: New file
        * or1k/include/or1k-support.h: New file
        * or1k/interrupts-asm.S: New file
        * or1k/interrupts.c: New file
        * or1k/mmu-asm.S: New file
        * or1k/or1k-internals.h: New file
        * or1k/or1k_uart.c: New file
        * or1k/or1k_uart.h: New file
        * or1k/outbyte.S: New file
        * or1k/sbrk.c: New file
        * or1k/sync-asm.S: New file
        * or1k/syscalls.c: New file
        * or1k/timer.c: New file
        * or1k/util.c: New file
2014-12-15 20:17:39 +00:00
Jeff Johnston d1219c0e89 2014-12-15 Stefan Wallentowitz <stefan.wallentowitz@tum.de>
* README: Add details about or1k.
        * configure.in: Add or1k/or1knd
        * configure: Regenerated.
        * or1k/aclocal.m4: New file.
        * or1k/configure: Ditto.
        * or1k/Makefile.in: New file
        * or1k/configure.in: New file
        * or1k/crt0.S: New file
        * or1k/include/or1k-asm.h: New file
2014-12-15 20:09:28 +00:00
Corinna Vinschen d4ef8a6368 * libgloss/nds32/_exit.S: Finish with an infinite loop in _exit.
* libgloss/nds32/_getpid.S: Don't issue _getpid system call, it is
	always successful.
	* libgloss/nds32/_gettimeofday.S: No error for _gettimeofday is defined
	in SYS_geterr handler.
	* libgloss/nds32/_isatty.S: No error for _isatty is defined in
	SYS_geterr handler.
	* libgloss/nds32/_kill.S: Alway fail. errno = EINVAL.
	* libgloss/nds32/_link.S: Alway fail. errno =  EMLINK.
	* libgloss/nds32/_times.S: Alway fail. errno = EACCES.
	* libgloss/nds32/_unlink.S: fix copy and paste error.
	* libgloss/nds32/crt0.S: Add pre_c_init, post_c_init, arg_init.
	* libgloss/nds32/crt1.S: Add pre_c_init, post_c_init, arg_init.
	* libgloss/nds32/syscall_extra.h: Re-format.
	* libgloss/nds32/vh.h: Add more virtual hosting number.
2014-12-15 13:30:07 +00:00
Anthony Green 070d1cee7d Rebuilt moxie/configure 2014-12-11 11:54:44 +00:00
Corinna Vinschen b3281dd194 * mips/crt0.S: Configure processor based on .MIPS.abiflags.
Remove FPU availability check, just use the pre-processor flags
	to indicicate what the user wanted.
	* mips/abiflags.S: New file.
	* mips/regs.S (SR_MSA): Define macro.
	* mips/mti32.ld: Place .MIPS.abiflags and wrap in marker symbols.
	* mips/mti64.ld: Likewise.
	* mips/mti64_64.ld: Likewise.
	* mips/mti64_n32.ld: Likewise.
2014-11-28 08:51:03 +00:00
Jeff Johnston 84b2a020da 2014-11-26 Matthew Fortune <Matthew.Fortune@imgtec.com>
* mips/crt0.S: Remove .set noreorder throughout.
        (zerobss): Open code the bltu macro instruction so that the
        zero-loop does not have a NOP in the branch delay slot.
2014-11-27 00:28:09 +00:00
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
Corinna Vinschen 1b580c732a Add missing file from last patch 2014-08-15 10:52:38 +00:00
Corinna Vinschen 433de33ec2 * arm/elf-nano.specs: New file.
* arm/elf-rdimon.specs: Support nano.specs.
	* arm/Makefile.in: Support nano.specs.
	* libnosys/nosys.specs: Support nano.specs.
2014-08-14 15:00:33 +00:00
Anthony Green ca6a65aa64 Fix typo in previous commit 2014-07-28 05:23:30 +00:00