diff options
Diffstat (limited to 'libgloss/xstormy16')
| -rw-r--r-- | libgloss/xstormy16/Makefile.in | 130 | ||||
| -rw-r--r-- | libgloss/xstormy16/close.c | 25 | ||||
| -rwxr-xr-x | libgloss/xstormy16/configure | 1219 | ||||
| -rw-r--r-- | libgloss/xstormy16/configure.in | 75 | ||||
| -rw-r--r-- | libgloss/xstormy16/crt0.s | 94 | ||||
| -rw-r--r-- | libgloss/xstormy16/crt0_stub.s | 151 | ||||
| -rw-r--r-- | libgloss/xstormy16/crti.s | 9 | ||||
| -rw-r--r-- | libgloss/xstormy16/crtn.s | 5 | ||||
| -rw-r--r-- | libgloss/xstormy16/eva_app.c | 78 | ||||
| -rw-r--r-- | libgloss/xstormy16/eva_app.ld | 129 | ||||
| -rw-r--r-- | libgloss/xstormy16/eva_stub.ld | 138 | ||||
| -rw-r--r-- | libgloss/xstormy16/fstat.c | 30 | ||||
| -rw-r--r-- | libgloss/xstormy16/getpid.c | 25 | ||||
| -rw-r--r-- | libgloss/xstormy16/kill.c | 28 | ||||
| -rw-r--r-- | libgloss/xstormy16/lseek.c | 31 | ||||
| -rw-r--r-- | libgloss/xstormy16/open.c | 31 | ||||
| -rw-r--r-- | libgloss/xstormy16/sim_high.ld | 131 | ||||
| -rw-r--r-- | libgloss/xstormy16/sim_malloc_start.s | 5 | ||||
| -rw-r--r-- | libgloss/xstormy16/stat.c | 30 | ||||
| -rw-r--r-- | libgloss/xstormy16/syscalls.S | 162 | ||||
| -rw-r--r-- | libgloss/xstormy16/syscalls.m4 | 40 | ||||
| -rw-r--r-- | libgloss/xstormy16/unlink.c | 28 | ||||
| -rw-r--r-- | libgloss/xstormy16/xstormy16_stub.c | 837 |
23 files changed, 0 insertions, 3431 deletions
diff --git a/libgloss/xstormy16/Makefile.in b/libgloss/xstormy16/Makefile.in deleted file mode 100644 index a4d50d963..000000000 --- a/libgloss/xstormy16/Makefile.in +++ /dev/null @@ -1,130 +0,0 @@ -# -# - -VPATH = @srcdir@ @srcdir@/.. -srcdir = @srcdir@ -objdir = . -srcroot = $(srcdir)/../.. -objroot = $(objdir)/../.. - -prefix = @prefix@ -exec_prefix = @exec_prefix@ - -host_alias = @host_alias@ -target_alias = @target_alias@ - -bindir = @bindir@ -libdir = @libdir@ -tooldir = $(exec_prefix)/$(target_alias) - -INSTALL = @INSTALL@ -INSTALL_PROGRAM = @INSTALL_PROGRAM@ -INSTALL_DATA = @INSTALL_DATA@ - -# Multilib support variables. -# TOP is used instead of MULTI{BUILD,SRC}TOP. -MULTIDIRS = -MULTISUBDIR = - -SHELL = /bin/sh - -CC = @CC@ - -AS = @AS@ -AR = @AR@ -LD = @LD@ -RANLIB = @RANLIB@ - -# Yuk. -OBJCOPY = $(subst ranlib,objcopy,$(RANLIB)) - -OBJS = isatty.o -CFLAGS = -g -O2 -ASFLAGS = --gdwarf2 -SCRIPTS = -CRT = crt0.o crti.o crtn.o - -# Here is all of the simulator stuff -SIM_SCRIPTS = sim_high.ld -SIM_LDFLAGS = -SIM_BSP = libsim.a -SIM_OBJS = syscalls.o sim_malloc_start.o - -# Here is stuff for building apps for GDB on the EVA board -EVA_APP_BSP = libeva_app.a -EVA_APP_OBJS = close.o fstat.o getpid.o kill.o lseek.o open.o \ - stat.o unlink.o eva_app.o -EVA_APP_SCRIPTS = eva_app.ld - -# Stub stuff -EVA_STUB_HEX = eva_stub.hex -EVA_STUB = eva_stub.elf -EVA_STUB_OBJS = xstormy16_stub.o crt0_stub.o - -# Host specific makefile fragment comes in here. -@host_makefile_frag@ - -# -# build a test program for each target board. Just trying to get -# it to link is a good test, so we ignore all the errors for now. -# -# all: ${MON_CRT0} ${MON_BSP} -all: ${CRT} ${SIM_BSP} ${EVA_APP_BSP} ${EVA_STUB_HEX} - -# -# here's where we build the board support packages for each target -# -${SIM_BSP}: ${OBJS} ${SIM_OBJS} - ${AR} ${ARFLAGS} ${SIM_BSP} ${SIM_OBJS} ${OBJS} - ${RANLIB} ${SIM_BSP} - -${EVA_APP_BSP}: ${OBJS} ${EVA_APP_OBJS} - ${AR} ${ARFLAGS} ${EVA_APP_BSP} ${EVA_APP_OBJS} ${OBJS} - ${RANLIB} ${EVA_APP_BSP} - -${EVA_STUB_HEX}: ${EVA_STUB} - ${OBJCOPY} -O ihex $< $@ - -${EVA_STUB}: ${EVA_STUB_OBJS} ${srcdir}/eva_stub.ld - ${CC} -g -Os -nostartfiles -T${srcdir}/eva_stub.ld ${EVA_STUB_OBJS} -o $@ - - -# -# here's where we build the test programs for each target -# -.PHONY: test -test: - true - -# -# -# -.c.S: - ${CC} ${CFLAGS_FOR_TARGET} -c $< - -clean mostlyclean: - rm -f a.out core *.i *.o *-test *.srec *.dis *.x *.hex $(SIM_BSP) $(EVA_APP_BSP) $(EVA_STUB} - -distclean maintainer-clean realclean: clean - rm -f Makefile config.status *~ - -.PHONY: install info install-info clean-info -install: - set -e; for x in ${SIM_BSP} ${CRT} ${EVA_APP_BSP} ${EVA_STUB_HEX} ${EVA_STUB} ; do\ - ${INSTALL_DATA} $$x ${tooldir}/lib${MULTISUBDIR}/$$x; \ - done - @for script in ${SCRIPTS} ${SIM_SCRIPTS} ${EVA_APP_SCRIPTS}; do\ - ${INSTALL_DATA} ${srcdir}/$${script} ${tooldir}/lib${MULTISUBDIR}/$${script}; \ - done - - -doc: -info: -install-info: -clean-info: - -Makefile: Makefile.in config.status @host_makefile_frag_path@ - $(SHELL) config.status - -config.status: configure - $(SHELL) config.status --recheck diff --git a/libgloss/xstormy16/close.c b/libgloss/xstormy16/close.c deleted file mode 100644 index 5fcfbf576..000000000 --- a/libgloss/xstormy16/close.c +++ /dev/null @@ -1,25 +0,0 @@ -/* close.c -- close a file descriptor. - * - * Copyright (c) 1995 Cygnus Support - * - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ -#include "glue.h" - -/* - * close -- We don't need to do anything, but pretend we did. - */ -int -_DEFUN (_close ,(fd), - int fd) -{ - return (0); -} diff --git a/libgloss/xstormy16/configure b/libgloss/xstormy16/configure deleted file mode 100755 index d0e7f7cf8..000000000 --- a/libgloss/xstormy16/configure +++ /dev/null @@ -1,1219 +0,0 @@ -#! /bin/sh - -# Guess values for system-dependent variables and create Makefiles. -# Generated automatically using autoconf version 2.12.1 -# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc. -# -# This configure script is free software; the Free Software Foundation -# gives unlimited permission to copy, distribute and modify it. - -# Defaults: -ac_help= -ac_default_prefix=/usr/local -# Any additions from configure.in: - -# Initialize some variables set by options. -# The variables have the same names as the options, with -# dashes changed to underlines. -build=NONE -cache_file=./config.cache -exec_prefix=NONE -host=NONE -no_create= -nonopt=NONE -no_recursion= -prefix=NONE -program_prefix=NONE -program_suffix=NONE -program_transform_name=s,x,x, -silent= -site= -srcdir= -target=NONE -verbose= -x_includes=NONE -x_libraries=NONE -bindir='${exec_prefix}/bin' -sbindir='${exec_prefix}/sbin' -libexecdir='${exec_prefix}/libexec' -datadir='${prefix}/share' -sysconfdir='${prefix}/etc' -sharedstatedir='${prefix}/com' -localstatedir='${prefix}/var' -libdir='${exec_prefix}/lib' -includedir='${prefix}/include' -oldincludedir='/usr/include' -infodir='${prefix}/info' -mandir='${prefix}/man' - -# Initialize some other variables. -subdirs= -MFLAGS= MAKEFLAGS= -SHELL=${CONFIG_SHELL-/bin/sh} -# Maximum number of lines to put in a shell here document. -ac_max_here_lines=12 - -ac_prev= -for ac_option -do - - # If the previous option needs an argument, assign it. - if test -n "$ac_prev"; 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This is -# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We -# are probably using a cross compiler, which will not be able to fully -# link an executable. 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Reset, watchdog timer interrupt - jmpf _int_reset - ;; base timer interrupt - jmpf _int_basetimer - ;; timer 0 - jmpf _int_timer0 - ;; timer 1 - jmpf _int_timer1 - ;; SIO0 interrupt - jmpf _int_sio0 - ;; SIO1 interrupt - jmpf _int_sio1 - ;; port0 interrupt - jmpf _int_port0 - ;; port1 interrupt - jmpf _int_port1 - - .text -# Reset code, set up memory and call main. -_int_reset: - ;; Set up the stack pointer. - mov r0,#__stack - bz r0,#0,0f - mov sp,r0 -0: - ;; Zero the data space - mov r0,#_edata - mov r1,#_end - mov r2,#0 -0: mov.w (r0++),r2 - blt r0,r1,0b - ;; Call hardware init routine - callf _hwinit - ;; Call initialization routines - callf _init - ;; Set up fini routines to be called from exit - mov r2,#@fptr(_fini) - callf atexit - ;; Call main() with empty argc/argv/envp - mov r2,#0 - mov r3,#0 - mov r4,#0 - callf main - ;; Exit. - callf exit - ;; Should never reach this code. - halt -1: .size _int_reset,1b-_int_reset - -# Stub interrupt routines. - .globl _int_timer0 - .weak _int_timer0 - .globl _int_timer1 - .weak _int_timer1 - .globl _int_sio0 - .weak _int_sio0 - .globl _int_sio1 - .weak _int_sio1 - .globl _int_port0 - .weak _int_port0 - .globl _int_port1 - .weak _int_port1 - .globl _int_basetimer - .weak _int_basetimer -_int_timer0: -_int_timer1: -_int_sio0: -_int_sio1: -_int_port0: -_int_port1: -_int_basetimer: - iret -1: .size _int_timer0,1b-_int_timer0 - -# Stub hardware init - .globl _hwinit - .weak _hwinit -_hwinit: - ret -1: .size _int_hwinit,1b-_int_hwinit - -# The first word in .data has address 0, so it's not a good -# idea to use it as its address conflicts with NULL. -# Place a HALT instruction there to try to catch NULL pointer -# dereferences. - .data - halt diff --git a/libgloss/xstormy16/crt0_stub.s b/libgloss/xstormy16/crt0_stub.s deleted file mode 100644 index 14ec47146..000000000 --- a/libgloss/xstormy16/crt0_stub.s +++ /dev/null @@ -1,151 +0,0 @@ -# XSTORMY16 startup code for GDB stub. - -# CPU Data for Sanyo EVA debugger at 0x7F00 - .section .cpudata,"ax" - .byte 0x00,0x02,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x44,0x35,0x39,0x52,0x30,0x30,0x30,0x30,0x2E,0x4F,0x50,0x54,0x00,0x00,0x00,0x00 - .byte 0x4c,0x43,0x35,0x39,0x52,0x30,0x30,0x30,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x80,0x00,0x20,0x48,0x00,0x00,0x00 - .byte 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x20,0x01,0x12,0x31,0x23,0x59 - -# Interrupt vectors at 0x8000. - .section .int_vec,"ax" - .global _start - .align 1 -_start: - ;; Reset, watchdog timer interrupt - jmpf _int_reset - ;; base timer interrupt - jmpf _int_basetimer - ;; timer 0 - jmpf _int_timer0 - ;; timer 1 - jmpf _int_timer1 - ;; SIO0 interrupt - jmpf _int_sio0 - ;; SIO1 interrupt - jmpf _int_sio1 - ;; port0 interrupt - jmpf _int_port0 - ;; port1 interrupt - jmpf _int_port1 - - .org 0x80 - ;; sys interrupt (0x8080) - jmpf _int_sys - - ;; Application void write(char *buf, int nbytes) - ;; This jmps to a stub function to packetize the buf for GDB - jmpf gdb_write - ;; Application int read(char *buf, int nbytes) - jmpf gdb_read - - .text -# Reset code, set up memory and call main. -_int_reset: - ;; Set up the application stack pointer. - mov sp,#0x002 - - ;; Zero the data space - mov r0,#_edata - mov r1,#_end - mov r2,#0 -0: mov.w (r0++),r2 - blt r0,r1,0b - - ;; Init the UART - callf uart_init - - ;; Turn on illegal insn trap - mov r0,r14 - set1 r0,#11 - mov r14,r0 - mov.b 0x7f08,#0x11 - mov.b 0x7f09,#0x10 - - ;; "breakpoint" sends us into stub. -0: - .hword 0x0006 - br 0b - -_int_sys: - push r13 - mov r13,#registers - mov.w (r13++),r0 - mov.w (r13++),r1 - mov.w (r13++),r2 - mov.w (r13++),r3 - mov.w (r13++),r4 - mov.w (r13++),r5 - mov.w (r13++),r6 - mov.w (r13++),r7 - mov r0,r8 - mov.w (r13++),r0 - mov r0,r9 - mov.w (r13++),r0 - mov r0,r10 - mov.w (r13++),r0 - mov r0,r11 - mov.w (r13++),r0 - mov r0,r12 - mov.w (r13++),r0 - pop r0 - mov.w (r13++),r0 ; R13 - pop r0 - mov.w (r13++),r0 ; PSW - mov r0,r15 - sub r0,#4 - mov.w (r13++),r0 ; SP - pop r0 - pop r1 - mov.w (r13++),r1 ; PCL - mov.w (r13++),r0 ; PCH - - ;; switch to stub stack and invoke stub - mov sp,#0x700 - callf handle_exception - - mov r0,#registers+34 - mov.w r1,(r0) ; PCH - mov.w r2,(--r0) ; PCL - mov.w r3,(--r0) ; SP - mov r15,r3 - push r2 - push r1 - mov.w r1,(--r0) ; PSW - push r1 - mov.w r1,(--r0) - mov r13,r1 - mov.w r1,(--r0) - mov r12,r1 - mov.w r1,(--r0) - mov r11,r1 - mov.w r1,(--r0) - mov r10,r1 - mov.w r1,(--r0) - mov r9,r1 - mov.w r1,(--r0) - mov r8,r1 - mov.w r7,(--r0) - mov.w r6,(--r0) - mov.w r5,(--r0) - mov.w r4,(--r0) - mov.w r3,(--r0) - mov.w r2,(--r0) - mov.w r1,(--r0) - mov.w r0,(--r0) - iret -1: .size _int_sys,1b-_int_sys - - diff --git a/libgloss/xstormy16/crti.s b/libgloss/xstormy16/crti.s deleted file mode 100644 index 3713ba3a1..000000000 --- a/libgloss/xstormy16/crti.s +++ /dev/null @@ -1,9 +0,0 @@ - .section .init,"ax" - .align 1 - .globl _init -_init: - - .section .fini,"ax" - .align 1 - .globl _fini -_fini: diff --git a/libgloss/xstormy16/crtn.s b/libgloss/xstormy16/crtn.s deleted file mode 100644 index 22d71b8df..000000000 --- a/libgloss/xstormy16/crtn.s +++ /dev/null @@ -1,5 +0,0 @@ - .section .init,"ax" - ret - - .section .fini,"ax" - ret diff --git a/libgloss/xstormy16/eva_app.c b/libgloss/xstormy16/eva_app.c deleted file mode 100644 index f6069fc7c..000000000 --- a/libgloss/xstormy16/eva_app.c +++ /dev/null @@ -1,78 +0,0 @@ -/* eva_app.c -- Glue code for linking apps to run under GDB debugger control. - * - * Copyright (c) 2001 Red Hat, Inc. - * - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ -#include "glue.h" - -typedef void (*write_proc_t)(char *buf, int nbytes); -typedef int (*read_proc_t)(char *buf, int nbytes); - -/* There is no "syscall", so we just call directly into the stub code - at fixed addresses. */ -#define STUB_WRITE(p,n) ((write_proc_t)0x8084)((p),(n)) -#define STUB_READ(p,n) ((read_proc_t)0x8088)((p),(n)) - -/* - * print -- do a raw print of a string - */ -void -print(char *ptr) -{ - STUB_WRITE(ptr, strlen(ptr)); -} - -/* - * write -- write bytes to the serial port. Ignore fd, since - * stdout and stderr are the same. Since we have no filesystem, - * open will only return an error. - */ -int -_write (int fd, char *buf, int nbytes) -{ - STUB_WRITE(buf, nbytes); - return (nbytes); -} - -int -_read (int fd, char *buf, int nbytes) -{ - return STUB_READ(buf, nbytes); -} - -extern char _end[]; -#define HEAP_LIMIT ((char *)0xffff) - -void * -_sbrk(int inc) -{ - static char *heap_ptr = _end; - void *base; - - if (inc > (HEAP_LIMIT - heap_ptr)) - return (void *)-1; - - base = heap_ptr; - heap_ptr += inc; - - return base; -} - -void -_exit(int n) -{ - while (1) - { - asm volatile ("nop"); - asm volatile (".hword 0x0006"); /* breakpoint (special illegal insn) */ - } -} diff --git a/libgloss/xstormy16/eva_app.ld b/libgloss/xstormy16/eva_app.ld deleted file mode 100644 index cf72dca7b..000000000 --- a/libgloss/xstormy16/eva_app.ld +++ /dev/null @@ -1,129 +0,0 @@ -OUTPUT_FORMAT("elf32-xstormy16", "elf32-xstormy16", - "elf32-xstormy16") -OUTPUT_ARCH(xstormy16) -ENTRY(_start) -GROUP(-lc -leva_app -lgcc) - -MEMORY -{ - RAM (w) : ORIGIN = 0x9000, LENGTH = 0x7000 - ROM (!w) : ORIGIN = 0x10000, LENGTH = 0x70000 -} - -SECTIONS -{ - __stack = 2 ; - __malloc_start = 0x800; - .data : - { - *(.data) - *(.data.*) - *(.gnu.linkonce.d.*) - SORT(CONSTRUCTORS) - } > RAM - /* Read-only sections */ - .rodata : { *(.rodata) *(.rodata.*) *(.gnu.linkonce.r.*) } > RAM - .ctors : - { - /* gcc uses crtbegin.o to find the start of - the constructors, so we make sure it is - first. Because this is a wildcard, it - doesn't matter if the user does not - actually link against crtbegin.o; the - linker won't look for a file to match a - wildcard. The wildcard also means that it - doesn't matter which directory crtbegin.o - is in. */ - KEEP (*crtbegin.o(.ctors)) - /* We don't want to include the .ctor section from - from the crtend.o file until after the sorted ctors. - The .ctor section from the crtend file contains the - end of ctors marker and it must be last */ - KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors)) - KEEP (*(SORT(.ctors.*))) - KEEP (*(.ctors)) - } > RAM - .dtors : - { - KEEP (*crtbegin.o(.dtors)) - KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors)) - KEEP (*(SORT(.dtors.*))) - KEEP (*(.dtors)) - } > RAM - .eh_frame : { KEEP (*(.eh_frame)) } > RAM - .gcc_except_table : { *(.gcc_except_table) } > RAM - .plt : { *(.plt) } > RAM - _edata = .; - PROVIDE (edata = .); - __bss_start = .; - .bss : - { - *(.dynbss) - *(.bss) - *(.bss.*) - *(.gnu.linkonce.b.*) - *(COMMON) - /* Align here to ensure that the .bss section occupies space up to - _end. Align after .bss to ensure correct alignment even if the - .bss section disappears because there are no input sections. */ - . = ALIGN(2); - } > RAM - . = ALIGN(2); - _end = .; - PROVIDE (end = .); - .text : - { - *(.int_vec) - *(.text) - *(.text.*) - *(.stub) - /* .gnu.warning sections are handled specially by elf32.em. */ - *(.gnu.warning) - *(.gnu.linkonce.t.*) - } > ROM =0 - .init : - { - KEEP (*(.init)) - } > ROM =0 - .fini : - { - KEEP (*(.fini)) - } > ROM =0 - PROVIDE (__etext = .); - PROVIDE (_etext = .); - PROVIDE (etext = .); - /* Stabs debugging sections. */ - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } - .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } - /* DWARF debug sections. - Symbols in the DWARF debugging sections are relative to the beginning - of the section so we begin them at 0. */ - /* DWARF 1 */ - .debug 0 : { *(.debug) } - .line 0 : { *(.line) } - /* GNU DWARF 1 extensions */ - .debug_srcinfo 0 : { *(.debug_srcinfo) } - .debug_sfnames 0 : { *(.debug_sfnames) } - /* DWARF 1.1 and DWARF 2 */ - .debug_aranges 0 : { *(.debug_aranges) } - .debug_pubnames 0 : { *(.debug_pubnames) } - /* DWARF 2 */ - .debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) } - .debug_abbrev 0 : { *(.debug_abbrev) } - .debug_line 0 : { *(.debug_line) } - .debug_frame 0 : { *(.debug_frame) } - .debug_str 0 : { *(.debug_str) } - .debug_loc 0 : { *(.debug_loc) } - .debug_macinfo 0 : { *(.debug_macinfo) } - /* SGI/MIPS DWARF 2 extensions */ - .debug_weaknames 0 : { *(.debug_weaknames) } - .debug_funcnames 0 : { *(.debug_funcnames) } - .debug_typenames 0 : { *(.debug_typenames) } - .debug_varnames 0 : { *(.debug_varnames) } - /* These must appear regardless of . */ -} diff --git a/libgloss/xstormy16/eva_stub.ld b/libgloss/xstormy16/eva_stub.ld deleted file mode 100644 index 83fbf615f..000000000 --- a/libgloss/xstormy16/eva_stub.ld +++ /dev/null @@ -1,138 +0,0 @@ -OUTPUT_FORMAT("elf32-xstormy16", "elf32-xstormy16", - "elf32-xstormy16") -OUTPUT_ARCH(xstormy16) -ENTRY(_start) - -MEMORY -{ - CPUDATA (!w) : ORIGIN = 0x7F00, LENGTH = 0x100 - ROM (w) : ORIGIN = 0x8000, LENGTH = 0x1000 -} - -/* Point interrupt vectors to user application. */ -PROVIDE (_int_basetimer = 0x10004); -PROVIDE (_int_timer0 = 0x10008); -PROVIDE (_int_timer1 = 0x1000C); -PROVIDE (_int_sio0 = 0x10010); -PROVIDE (_int_sio1 = 0x10014); -PROVIDE (_int_port0 = 0x10018); -PROVIDE (_int_port1 = 0x1001C); - -SECTIONS -{ - /* CPU data for Sanyo debugger */ - .cpudata : { KEEP (*(.cpudata)) } > CPUDATA - /* Read-only sections in ROM. */ - .int_vec : { *(.int_vec) } > ROM - .rodata : { *(.rodata) *(.rodata.*) *(.gnu.linkonce.r.*) } > ROM - .ctors : - { - /* gcc uses crtbegin.o to find the start of - the constructors, so we make sure it is - first. Because this is a wildcard, it - doesn't matter if the user does not - actually link against crtbegin.o; the - linker won't look for a file to match a - wildcard. The wildcard also means that it - doesn't matter which directory crtbegin.o - is in. */ - KEEP (*crtbegin.o(.ctors)) - /* We don't want to include the .ctor section from - from the crtend.o file until after the sorted ctors. - The .ctor section from the crtend file contains the - end of ctors marker and it must be last */ - KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors)) - KEEP (*(SORT(.ctors.*))) - KEEP (*(.ctors)) - } > ROM - .dtors : - { - KEEP (*crtbegin.o(.dtors)) - KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors)) - KEEP (*(SORT(.dtors.*))) - KEEP (*(.dtors)) - } > ROM - .eh_frame : { KEEP (*(.eh_frame)) } > ROM - .gcc_except_table : { *(.gcc_except_table) } > ROM - .plt : { *(.plt) } > ROM - .text : - { - *(.text) - *(.text.*) - *(.stub) - /* .gnu.warning sections are handled specially by elf32.em. */ - *(.gnu.warning) - *(.gnu.linkonce.t.*) - } > ROM =0 - .init : - { - KEEP (*(.init)) - } > ROM =0 - .fini : - { - KEEP (*(.fini)) - } > ROM =0 - PROVIDE (__etext = .); - PROVIDE (_etext = .); - PROVIDE (etext = .); - .data : - { - *(.data) - *(.data.*) - *(.gnu.linkonce.d.*) - SORT(CONSTRUCTORS) - } > ROM - _edata = .; - PROVIDE (edata = .); - __bss_start = .; - .bss : - { - *(.dynbss) - *(.bss) - *(.bss.*) - *(.gnu.linkonce.b.*) - *(COMMON) - /* Align here to ensure that the .bss section occupies space up to - _end. Align after .bss to ensure correct alignment even if the - .bss section disappears because there are no input sections. */ - . = ALIGN(2); - } > ROM - . = ALIGN(2); - _end = .; - PROVIDE (end = .); - - /* Stabs debugging sections. */ - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } - .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } - /* DWARF debug sections. - Symbols in the DWARF debugging sections are relative to the beginning - of the section so we begin them at 0. */ - /* DWARF 1 */ - .debug 0 : { *(.debug) } - .line 0 : { *(.line) } - /* GNU DWARF 1 extensions */ - .debug_srcinfo 0 : { *(.debug_srcinfo) } - .debug_sfnames 0 : { *(.debug_sfnames) } - /* DWARF 1.1 and DWARF 2 */ - .debug_aranges 0 : { *(.debug_aranges) } - .debug_pubnames 0 : { *(.debug_pubnames) } - /* DWARF 2 */ - .debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) } - .debug_abbrev 0 : { *(.debug_abbrev) } - .debug_line 0 : { *(.debug_line) } - .debug_frame 0 : { *(.debug_frame) } - .debug_str 0 : { *(.debug_str) } - .debug_loc 0 : { *(.debug_loc) } - .debug_macinfo 0 : { *(.debug_macinfo) } - /* SGI/MIPS DWARF 2 extensions */ - .debug_weaknames 0 : { *(.debug_weaknames) } - .debug_funcnames 0 : { *(.debug_funcnames) } - .debug_typenames 0 : { *(.debug_typenames) } - .debug_varnames 0 : { *(.debug_varnames) } - /* These must appear regardless of . */ -} diff --git a/libgloss/xstormy16/fstat.c b/libgloss/xstormy16/fstat.c deleted file mode 100644 index 982d578cb..000000000 --- a/libgloss/xstormy16/fstat.c +++ /dev/null @@ -1,30 +0,0 @@ -/* fstat.c -- get status of a file. - * - * Copyright (c) 1995 Cygnus Support - * - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ -#include <sys/stat.h> -#include "glue.h" - -/* - * fstat -- Since we have no file system, we just return an error. - */ -int -_DEFUN (_fstat, (fd, buf), - int fd _AND - struct stat *buf) -{ - buf->st_mode = S_IFCHR; /* Always pretend to be a tty */ - buf->st_blksize = 0; - - return (0); -} diff --git a/libgloss/xstormy16/getpid.c b/libgloss/xstormy16/getpid.c deleted file mode 100644 index 0f081a11d..000000000 --- a/libgloss/xstormy16/getpid.c +++ /dev/null @@ -1,25 +0,0 @@ -/* getpid.c -- get the current process id. - * - * Copyright (c) 1995 Cygnus Support - * - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ -#include "glue.h" - -/* - * getpid -- only one process, so just return 1. - */ -int -_DEFUN (_getpid, (), - ) -{ - return __MYPID; -} diff --git a/libgloss/xstormy16/kill.c b/libgloss/xstormy16/kill.c deleted file mode 100644 index 0bbc0141a..000000000 --- a/libgloss/xstormy16/kill.c +++ /dev/null @@ -1,28 +0,0 @@ -/* kill.c -- remove a process. - * - * Copyright (c) 1995 Cygnus Support - * - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ -#include "glue.h" - -/* - * kill -- go out via exit... - */ -int -_DEFUN (_kill, (pid, sig), - int pid _AND - int sig) -{ - if(pid == __MYPID) - _exit(sig); - return 0; -} diff --git a/libgloss/xstormy16/lseek.c b/libgloss/xstormy16/lseek.c deleted file mode 100644 index 640a96ea0..000000000 --- a/libgloss/xstormy16/lseek.c +++ /dev/null @@ -1,31 +0,0 @@ -/* lseek.c -- move read/write pointer. - * - * Copyright (c) 1995 Cygnus Support - * - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ -#include <sys/types.h> -#include <errno.h> -#include "glue.h" - -/* - * lseek -- Since a serial port is non-seekable, we return an error. - */ -off_t -_DEFUN (_lseek, (fd, offset, whence), - int fd _AND - off_t offset _AND - int whence) -{ - errno = ESPIPE; - return ((off_t)-1); -} - diff --git a/libgloss/xstormy16/open.c b/libgloss/xstormy16/open.c deleted file mode 100644 index a2c318e1a..000000000 --- a/libgloss/xstormy16/open.c +++ /dev/null @@ -1,31 +0,0 @@ -/* open.c -- open a file. - * - * Copyright (c) 1995 Cygnus Support - * - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ -#include <errno.h> -#include "glue.h" - -/* - * open -- open a file descriptor. We don't have a filesystem, so - * we return an error. - */ -int -_DEFUN (_open, (buf, flags, mode), - const char *buf _AND - int flags _AND - int mode) -{ - errno = EIO; - return (-1); -} - diff --git a/libgloss/xstormy16/sim_high.ld b/libgloss/xstormy16/sim_high.ld deleted file mode 100644 index 8226d870f..000000000 --- a/libgloss/xstormy16/sim_high.ld +++ /dev/null @@ -1,131 +0,0 @@ -/* A modified version of the basic linker script, for testing purposes, - which puts all code above 0x10000. */ -OUTPUT_FORMAT("elf32-xstormy16", "elf32-xstormy16", - "elf32-xstormy16") -OUTPUT_ARCH(xstormy16) -ENTRY(_start) - SEARCH_DIR(/es/scratch/geoffk/objs/mainline-sX/H-i686-pc-linux-gnulibc2.2/xstormy16-elf/lib); -/* There are two memory regions we care about, one from 0 through 0x7F00 - that is RAM and one from 0x8000 up which is ROM. */ -MEMORY -{ - RAM (w) : ORIGIN = 0, LENGTH = 0x7F00 - LOROM (!w) : ORIGIN = 0x8000, LENGTH = 0x8000 - HIROM (!w) : ORIGIN = 0x10000, LENGTH = 0xFF0000 -} -SECTIONS -{ - .data : - { - *(.data) - *(.data.*) - *(.gnu.linkonce.d.*) - SORT(CONSTRUCTORS) - } > RAM - _edata = .; - PROVIDE (edata = .); - __bss_start = .; - .bss : - { - *(.dynbss) - *(.bss) - *(.bss.*) - *(.gnu.linkonce.b.*) - *(COMMON) - /* Align here to ensure that the .bss section occupies space up to - _end. Align after .bss to ensure correct alignment even if the - .bss section disappears because there are no input sections. */ - . = ALIGN(2); - } > RAM - . = ALIGN(2); - __stack = .; - _end = .; - PROVIDE (end = .); - /* Read-only sections in ROM. */ - .int_vec : { *(.int_vec) } > LOROM - .rodata : { *(.rodata) *(.rodata.*) *(.gnu.linkonce.r.*) } > LOROM - .ctors : - { - /* gcc uses crtbegin.o to find the start of - the constructors, so we make sure it is - first. Because this is a wildcard, it - doesn't matter if the user does not - actually link against crtbegin.o; the - linker won't look for a file to match a - wildcard. The wildcard also means that it - doesn't matter which directory crtbegin.o - is in. */ - KEEP (*crtbegin.o(.ctors)) - /* We don't want to include the .ctor section from - from the crtend.o file until after the sorted ctors. - The .ctor section from the crtend file contains the - end of ctors marker and it must be last */ - KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors)) - KEEP (*(SORT(.ctors.*))) - KEEP (*(.ctors)) - } > LOROM - .dtors : - { - KEEP (*crtbegin.o(.dtors)) - KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors)) - KEEP (*(SORT(.dtors.*))) - KEEP (*(.dtors)) - } > LOROM - .eh_frame : { KEEP (*(.eh_frame)) } > LOROM - .gcc_except_table : { *(.gcc_except_table) } > LOROM - .plt : { *(.plt) } > LOROM - .text : - { - *(.text) - *(.text.*) - *(.stub) - /* .gnu.warning sections are handled specially by elf32.em. */ - *(.gnu.warning) - *(.gnu.linkonce.t.*) - } > HIROM =0 - .init : - { - KEEP (*(.init)) - } > HIROM =0 - .fini : - { - KEEP (*(.fini)) - } > HIROM =0 - PROVIDE (__etext = .); - PROVIDE (_etext = .); - PROVIDE (etext = .); - /* Stabs debugging sections. */ - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } - .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } - /* DWARF debug sections. - Symbols in the DWARF debugging sections are relative to the beginning - of the section so we begin them at 0. */ - /* DWARF 1 */ - .debug 0 : { *(.debug) } - .line 0 : { *(.line) } - /* GNU DWARF 1 extensions */ - .debug_srcinfo 0 : { *(.debug_srcinfo) } - .debug_sfnames 0 : { *(.debug_sfnames) } - /* DWARF 1.1 and DWARF 2 */ - .debug_aranges 0 : { *(.debug_aranges) } - .debug_pubnames 0 : { *(.debug_pubnames) } - /* DWARF 2 */ - .debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) } - .debug_abbrev 0 : { *(.debug_abbrev) } - .debug_line 0 : { *(.debug_line) } - .debug_frame 0 : { *(.debug_frame) } - .debug_str 0 : { *(.debug_str) } - .debug_loc 0 : { *(.debug_loc) } - .debug_macinfo 0 : { *(.debug_macinfo) } - /* SGI/MIPS DWARF 2 extensions */ - .debug_weaknames 0 : { *(.debug_weaknames) } - .debug_funcnames 0 : { *(.debug_funcnames) } - .debug_typenames 0 : { *(.debug_typenames) } - .debug_varnames 0 : { *(.debug_varnames) } - /* These must appear regardless of . */ -} diff --git a/libgloss/xstormy16/sim_malloc_start.s b/libgloss/xstormy16/sim_malloc_start.s deleted file mode 100644 index 143053f3b..000000000 --- a/libgloss/xstormy16/sim_malloc_start.s +++ /dev/null @@ -1,5 +0,0 @@ -# This file just defines __malloc_start for newlib for the simulator. -# The simulator has RAM up to the I/O area at 0x7F00. - .globl __malloc_start - .set __malloc_start,0x7F00 - diff --git a/libgloss/xstormy16/stat.c b/libgloss/xstormy16/stat.c deleted file mode 100644 index c766a341c..000000000 --- a/libgloss/xstormy16/stat.c +++ /dev/null @@ -1,30 +0,0 @@ -/* stat.c -- Get the status of a file. - * - * Copyright (c) 1995 Cygnus Support - * - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ -#include <sys/stat.h> -#include <errno.h> -#include "glue.h" - -/* - * stat -- Since we have no file system, we just return an error. - */ -int -_DEFUN (_stat, (path, buf), - const char *path _AND - struct stat *buf) -{ - errno = EIO; - return (-1); -} - diff --git a/libgloss/xstormy16/syscalls.S b/libgloss/xstormy16/syscalls.S deleted file mode 100644 index 8f4175f31..000000000 --- a/libgloss/xstormy16/syscalls.S +++ /dev/null @@ -1,162 +0,0 @@ -# xstormy16 system calls for the simulator - -#include <syscall.h> - - .text - - .globl _exit -_exit: - mov r1,#SYS_exit - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size exit,0b-_exit - - .globl _open -_open: - mov r1,#SYS_open - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size open,0b-_open - - .globl _close -_close: - mov r1,#SYS_close - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size close,0b-_close - - .globl _read -_read: - mov r1,#SYS_read - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size read,0b-_read - - .globl _write -_write: - mov r1,#SYS_write - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size write,0b-_write - - .globl _lseek -_lseek: - mov r1,#SYS_lseek - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size lseek,0b-_lseek - - .globl _unlink -_unlink: - mov r1,#SYS_unlink - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size unlink,0b-_unlink - - .globl _getpid -_getpid: - mov r1,#SYS_getpid - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size getpid,0b-_getpid - - .globl _kill -_kill: - mov r1,#SYS_kill - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size kill,0b-_kill - - .globl _fstat -_fstat: - mov r1,#SYS_fstat - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size fstat,0b-_fstat - - .globl _chdir -_chdir: - mov r1,#SYS_chdir - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size chdir,0b-_chdir - - .globl _stat -_stat: - mov r1,#SYS_stat - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size stat,0b-_stat - - .globl _chmod -_chmod: - mov r1,#SYS_chmod - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size chmod,0b-_chmod - - .globl _utime -_utime: - mov r1,#SYS_utime - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size utime,0b-_utime - - .globl _time -_time: - mov r1,#SYS_time - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size time,0b-_time - - .globl _gettimeofday -_gettimeofday: - mov r1,#SYS_gettimeofday - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size gettimeofday,0b-_gettimeofday - - .globl _times -_times: - mov r1,#SYS_times - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size times,0b-_times - - .globl _link -_link: - mov r1,#SYS_link - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size link,0b-_link - -syscall_error: -# Return value for the syscall is in r2. Save it here, as -# _errno will overwrite it with the address of the errno -# variable. r0 is the errno. - push r2 - push r0 - callf __errno - pop r0 - mov.w (r2),r0 - pop r2 - ret -0: .size syscall_error,0b-syscall_error diff --git a/libgloss/xstormy16/syscalls.m4 b/libgloss/xstormy16/syscalls.m4 deleted file mode 100644 index ab71fc6d5..000000000 --- a/libgloss/xstormy16/syscalls.m4 +++ /dev/null @@ -1,40 +0,0 @@ -# xstormy16 system calls for the simulator - -#include <syscall.h> - - .text - -define(`syscall',`.globl _`'$1 -_`'$1`': - mov r1,#SYS_$1 - .hword 0x0001 - bnz r1,#0,syscall_error - ret -0: .size $1,0b-_$1 -')dnl - syscall(exit) - syscall(open) - syscall(close) - syscall(read) - syscall(write) - syscall(lseek) - syscall(unlink) - syscall(getpid) - syscall(kill) - syscall(fstat) - syscall(chdir) - syscall(stat) - syscall(chmod) - syscall(utime) - syscall(time) - syscall(gettimeofday) - syscall(times) - syscall(link) -dnl -syscall_error: - push r0 - callf __errno - pop r0 - mov.w (r2),r0 - ret -0: .size syscall_error,0b-syscall_error diff --git a/libgloss/xstormy16/unlink.c b/libgloss/xstormy16/unlink.c deleted file mode 100644 index 1c56663ea..000000000 --- a/libgloss/xstormy16/unlink.c +++ /dev/null @@ -1,28 +0,0 @@ -/* unlink.c -- remove a file. - * - * Copyright (c) 1995 Cygnus Support - * - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ -#include <errno.h> -#include "glue.h" - -/* - * unlink -- since we have no file system, - * we just return an error. - */ -int -_DEFUN (_unlink, (path), - char * path) -{ - errno = EIO; - return (-1); -} diff --git a/libgloss/xstormy16/xstormy16_stub.c b/libgloss/xstormy16/xstormy16_stub.c deleted file mode 100644 index 7706031e9..000000000 --- a/libgloss/xstormy16/xstormy16_stub.c +++ /dev/null @@ -1,837 +0,0 @@ -/**************************************************************************** - - THIS SOFTWARE IS NOT COPYRIGHTED - - HP offers the following for use in the public domain. HP makes no - warranty with regard to the software or it's performance and the - user accepts the software "AS IS" with all faults. - - HP DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD - TO THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES - OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - -****************************************************************************/ - -/**************************************************************************** - * Header: remcom.c,v 1.34 91/03/09 12:29:49 glenne Exp $ - * - * Module name: remcom.c $ - * Revision: 1.34 $ - * Date: 91/03/09 12:29:49 $ - * Contributor: Lake Stevens Instrument Division$ - * - * Description: low level support for gdb debugger. $ - * - * Considerations: only works on target hardware $ - * - * Written by: Glenn Engel $ - * ModuleState: Experimental $ - * - * NOTES: See Below $ - * - * Heavily modified for XStormy16 by Mark Salter, Red Hat. - * Optimisations and 'X' support by Geoff Keating, Red Hat. - * - * To enable debugger support, two things need to happen. One, a - * call to set_debug_traps() is necessary in order to allow any breakpoints - * or error conditions to be properly intercepted and reported to gdb. - * Two, a breakpoint needs to be generated to begin communication. This - * is most easily accomplished by a call to breakpoint(). Breakpoint() - * simulates a breakpoint by executing a trap #1. - * - * Because gdb will sometimes write to the stack area to execute function - * calls, this program cannot rely on using the inferior stack so it uses - * it's own stack area. - * - ************* - * - * The following gdb commands are supported: - * - * command function Return value - * - * g return the value of the CPU registers hex data or ENN - * G set the value of the CPU registers OK or ENN - * - * mAA..AA,LLLL Read LLLL bytes at address AA..AA hex data or ENN - * MAA..AA,LLLL: Write LLLL bytes at address AA.AA OK or ENN - * XAA..AA,LLLL: Write LLLL binary bytes at address OK or ENN - * AA..AA - * - * c Resume at current address SNN ( signal NN) - * cAA..AA Continue at address AA..AA SNN - * - * s Step one instruction SNN - * sAA..AA Step one instruction from AA..AA SNN - * - * k kill - * - * ? What was the last sigval ? SNN (signal NN) - * - * All commands and responses are sent with a packet which includes a - * checksum. A packet consists of - * - * $<packet info>#<checksum>. - * - * where - * <packet info> :: <characters representing the command or response> - * <checksum> :: <two hex digits computed as modulo 256 sum of <packetinfo>> - * - * When a packet is received, it is first acknowledged with either '+' or '-'. - * '+' indicates a successful transfer. '-' indicates a failed transfer. - * - * Example: - * - * Host: Reply: - * $m0,10#2a +$00010203040506070809101112131415#42 - * - ****************************************************************************/ - -/* Local functions: - */ -static void putDebugChar(unsigned ch); -static unsigned char getDebugChar(void); -static void putPacket(unsigned char *); -static void putHex (char c, unsigned long mem_arg, int count); -static unsigned char *getpacket(void); -static void hex2mem(unsigned char *, unsigned long, int); -static int valid_addr_range (unsigned long mem, int count); -static int hexToInt(unsigned char **, long *); -static void prepare_to_step(void); -static void finish_from_step(void); - -/* breakpoint opcode */ -#define BREAKPOINT_OPCODE 0x0006 - -/* Error Detection Register */ -#define ERR_DETECT_REG (*(volatile unsigned *)0x7f08) -#define UNDEF_INSN_ENA 0x01 -#define UNDEF_INSN_FLAG 0x02 -#define ODD_ADDR_ENA 0x04 -#define ODD_ADDR_FLAG 0x08 -#define BAD_ADDR_ENA 0x10 -#define BAD_ADDR_FLAG 0x20 -#define SER0_IRQ_ENA 0x1000 -#define SER0_IRQ_FLAG 0x2000 - -/***************************************************************************** - * BUFMAX defines the maximum number of characters in inbound/outbound buffers - * at least NUMREGBYTES*2 are needed for register packets - */ -#define BUFMAX 80 - -static const unsigned char hexchars[]="0123456789abcdef"; - -#define NUMREGS 17 - -/* Number of bytes of registers (extra 2 bytes is for 4 byte PC). */ -#define NUMREGBYTES ((NUMREGS * 2) + 2) -enum regnames { R0, R1, R2, R3, R4, R5, R6, R7, - R8, R9, R10, R11, R12, R13, R14, R15, - PC }; - -#define FP R13 -#define PSW R14 -#define SP R15 - -struct regs { - int r[16]; - long pc; -} registers; - -static struct regs orig_registers; - -static unsigned char remcomBuffer[BUFMAX]; - -/* Indicate whether inferior is running. Used to decide whether or not to - send T packet when stub is entered. */ -static char is_running; - -static inline unsigned char -get_char(unsigned long addr) -{ - unsigned int msw, lsw; - unsigned char ret; - - msw = addr >> 16; - lsw = addr & 0xffff; - - asm("movf.b %0,(%2)\n" - : "=e"(ret) : "d"(msw), "r"(lsw) : "memory"); - - return ret; -} - -static inline void -set_char(unsigned long addr, unsigned int val) -{ - unsigned int msw, lsw; - - msw = addr >> 16; - lsw = addr & 0xffff; - - asm("movf.b (%1),%2\n" - : /* none */ : "d"(msw), "r"(lsw), "e"(val) : "memory" ); -} - -static inline unsigned int -get_word(unsigned long addr) -{ - unsigned int ret, msw, lsw; - - msw = addr >> 16; - lsw = addr & 0xffff; - - asm("movf.w %0,(%2)\n" - : "=e"(ret) : "d"(msw), "r"(lsw) : "memory" ); - - return ret; -} - -static inline void -set_word(unsigned long addr, unsigned int val) -{ - unsigned int msw, lsw; - - msw = addr >> 16; - lsw = addr & 0xffff; - - asm("movf.w (%1),%2\n" - : /* none */ : "d"(msw), "r"(lsw), "e"(val) : "memory" ); -} - -static void -assign_regs (struct regs *dest, const struct regs *src) -{ - int i; - char *d = (char *)dest, *s = (char *)src; - for (i = 0; i < sizeof (struct regs); i++) - *d++ = *s++; -} - -/* Write out a register for a 'T' packet. */ - -static unsigned char * -putreg (unsigned char *buf, int regnum, void *mem_p, int count) -{ - int i; - unsigned char ch; - char *mem = (char *)mem_p; - - *buf++ = hexchars[regnum >> 4]; - *buf++ = hexchars[regnum % 16]; - *buf++ = ':'; - - for (i=0;i<count;i++) - { - ch = *mem++; - *buf++ = hexchars[ch >> 4]; - *buf++ = hexchars[ch % 16]; - } - *buf++ = ';'; - return(buf); -} - -/* - * This function does all command procesing for interfacing to gdb. - */ -void -handle_exception(void) -{ - char sigval; - unsigned char *ptr; - long addr, length; - - /* reply to host that an exception has occurred */ - sigval = 5; /* SIGTRAP is default */ - if (ERR_DETECT_REG & UNDEF_INSN_FLAG) - { - ERR_DETECT_REG &= ~UNDEF_INSN_FLAG; - registers.pc -= 2; - if (get_word(registers.pc) != BREAKPOINT_OPCODE) - sigval = 4; /* SIGILL */ - } - if (ERR_DETECT_REG & BAD_ADDR_FLAG) - { - ERR_DETECT_REG &= ~BAD_ADDR_FLAG; - sigval = 11; /* SIGSEGV */ - } - if (ERR_DETECT_REG & SER0_IRQ_FLAG) - { - unsigned char ch; - - ch = getDebugChar(); - ERR_DETECT_REG &= ~SER0_IRQ_FLAG; - if (ch != 0x03) - return; - sigval = 2; /* SIGINT */ - } - - finish_from_step(); - - /* save original context so it can be restored as a result of - a kill packet. */ - if (orig_registers.pc == 0L) - assign_regs (&orig_registers, ®isters); - - if (is_running) - { - ptr = remcomBuffer; - - *ptr++ = 'T'; /* notify gdb with signo, PC, FP and SP */ - *ptr++ = hexchars[sigval >> 4]; - *ptr++ = hexchars[sigval & 0xf]; - - ptr = putreg (ptr, PC, ®isters.pc, 4); - ptr = putreg (ptr, FP, ®isters.r[FP], 2); - ptr = putreg (ptr, SP, ®isters.r[SP], 2); - - *ptr++ = 0; - - putPacket(remcomBuffer); - } - - while (1) { - char kind; - - ptr = getpacket(); - kind = *ptr++; - if (kind == 'M' || kind == 'X') - { - /* MAA..AA,LLLL: Write LLLL bytes at address AA.AA return OK */ - /* TRY TO READ '%x,%x:'. IF SUCCEED, SET PTR = 0 */ - if (hexToInt(&ptr,&addr) - && *(ptr++) == ',' - && hexToInt(&ptr,&length) - && *(ptr++) == ':') - { - if (valid_addr_range (addr, length)) - { - if (kind == 'M') - hex2mem(ptr, addr, length); - else - { - int i; - for (i = 0; i < length; i++) - if (*ptr++ == 0x7d) - set_char (addr++, *ptr++ ^ 0x20); - else - set_char (addr++, ptr[-1]); - - } - putPacket ("OK"); - } - else - putPacket ("E03"); - } - else - putPacket ("E02"); - } - else if (kind == 'm') - { - /* mAA..AA,LLLL Read LLLL bytes at address AA..AA */ - /* TRY TO READ %x,%x. IF SUCCEED, SET PTR = 0 */ - if (hexToInt(&ptr,&addr) - && *(ptr++) == ',' - && hexToInt (&ptr,&length)) - { - if (valid_addr_range (addr, length)) - putHex (0, addr, length); - else - putPacket ("E03"); - } - else - putPacket ("E02"); - } - else if (kind == 'R') - { - if (hexToInt (&ptr, &addr)) - registers.pc = addr; - putPacket ("OK"); - } - else if (kind == '!') - putPacket ("OK"); - else if (kind == '?') - putHex ('S', (unsigned long)(unsigned int)&sigval, 1); - else if (kind == 'g') - putHex (0, (unsigned long)(unsigned int)®isters, NUMREGBYTES); - else if (kind == 'P') - { - /* set the value of a single CPU register - return OK */ - unsigned long regno; - - if (hexToInt (&ptr, ®no) - && *ptr++ == '=' - && regno < NUMREGS) - { - hex2mem (ptr, (unsigned long)(unsigned int)(registers.r + regno), - regno == PC ? 4 : 2); - putPacket ("OK"); - } - else - putPacket ("E01"); - } - else if (kind == 'G') - { - /* set the value of the CPU registers - return OK */ - hex2mem(ptr, (unsigned long)(unsigned int)®isters, NUMREGBYTES); - putPacket ("OK"); - } - else if (kind == 's' || kind == 'c') - { - /* sAA..AA Step one instruction from AA..AA(optional) */ - /* cAA..AA Continue from address AA..AA(optional) */ - /* try to read optional parameter, pc unchanged if no parm */ - - is_running = 1; - - if (hexToInt(&ptr,&addr)) - registers.pc = addr; - - if (kind == 's') /* single-stepping */ - prepare_to_step(); - return; - } - else if (kind == 'k') - { - /* kill the program */ - assign_regs (®isters, &orig_registers); - is_running = 0; - putPacket (""); - } - else - /* Unknown code. Return an empty reply message. */ - putPacket (""); - } -} - -static int -hex (int ch) -{ - if ((ch >= '0') && (ch <= '9')) return (ch-'0'); - if ((ch >= 'a') && (ch <= 'f')) return (ch-'a'+10); - if ((ch >= 'A') && (ch <= 'F')) return (ch-'A'+10); - return (-1); -} - -/* scan for the sequence $<data>#<checksum> */ - -static unsigned char * -getpacket (void) -{ - unsigned char *buffer = &remcomBuffer[0]; - unsigned checksum; - int count; - char ch; - - while (1) - { - /* wait around for the start character, ignore all other characters */ - while (getDebugChar () != '$') - ; - - checksum = 0; - count = 0; - while ((ch = getDebugChar ()) == '$') - ; - - /* now, read until a # or end of buffer is found */ - while (ch != '#' && count < BUFMAX - 1) - { - checksum = checksum + ch; - buffer[count] = ch; - count = count + 1; - ch = getDebugChar (); - } - buffer[count] = 0; - - if (ch == '#') - { - unsigned xmitcsum; - ch = getDebugChar (); - xmitcsum = hex (ch) << 4; - ch = getDebugChar (); - xmitcsum += hex (ch); - - /* If one of the above 'hex' calls returns -1, xmitcsum will - have high bits set, and so the test below will fail. */ - - if ((checksum & 0xFF) != xmitcsum) - putDebugChar ('-'); /* failed checksum */ - else - { - putDebugChar ('+'); /* successful transfer */ - return &buffer[0]; - } - } - } -} - -/* send the packet in buffer. */ - -static void -putPacket (unsigned char *buffer_p) -{ - /* $<packet info>#<checksum>. */ - do { - unsigned checksum; - unsigned char *buffer = buffer_p; - - putDebugChar('$'); - checksum = 0; - - while (*buffer) { - putDebugChar(*buffer); - checksum += *buffer; - buffer++; - } - putDebugChar('#'); - putDebugChar(hexchars[(checksum >> 4) % 16]); - putDebugChar(hexchars[checksum % 16]); - } while (getDebugChar() != '+'); -} - -/* Convert the memory pointed to by mem into hex, and return it as a packet. */ - -static void -putHex (char c, unsigned long mem_arg, int count) -{ - do { - unsigned long mem = mem_arg; - int i; - unsigned checksum; - - putDebugChar('$'); - checksum = 0; - - if (c) - { - checksum = c; - putDebugChar(c); - } - - for (i = 0; i < count; i++) - { - unsigned char c = get_char (mem); - char ch = hexchars[c >> 4]; - putDebugChar(ch); - checksum += ch; - ch = hexchars[c % 16]; - putDebugChar(ch); - checksum += ch; - mem++; - } - putDebugChar('#'); - putDebugChar(hexchars[(checksum >> 4) % 16]); - putDebugChar(hexchars[checksum % 16]); - } while (getDebugChar() != '+'); -} - -/* Function: gdb_write(char *, int) - Make gdb write n bytes to stdout (not assumed to be null-terminated). */ - -void -gdb_write (char *data, int len) -{ - ERR_DETECT_REG &= ~SER0_IRQ_ENA; - putHex ('O', (unsigned long)(unsigned int)data, len); - ERR_DETECT_REG |= SER0_IRQ_ENA; -} - -int -gdb_read (char *buf, int nbytes) -{ - int i = 0; - - ERR_DETECT_REG &= ~SER0_IRQ_ENA; - for (i = 0; i < nbytes; i++) - { - *(buf + i) = getDebugChar(); - if ((*(buf + i) == '\n') || (*(buf + i) == '\r')) - { - (*(buf + i + 1)) = 0; - break; - } - } - ERR_DETECT_REG |= SER0_IRQ_ENA; - return (i); -} - -static int -valid_addr_range (unsigned long mem, int count) -{ - unsigned long last = mem + count - 1; - - if (last < 0x800L) - return 1; - - if (mem < 0x7f00L) - return 0; - - if (last > 0x7ffffL) - return 0; - - return 1; -} - -/* Convert the hex array pointed to by buf into binary to be placed in mem. - Return a pointer to the character AFTER the last byte written. */ - -static void -hex2mem (unsigned char *buf, unsigned long mem, int count) -{ - int i; - unsigned char ch; - - for (i=0;i<count;i++) - { - ch = hex(*buf++) << 4; - ch = ch + hex(*buf++); - set_char (mem++, ch); - } -} - -/**********************************************/ -/* WHILE WE FIND NICE HEX CHARS, BUILD AN INT */ -/* RETURN NUMBER OF CHARS PROCESSED */ -/**********************************************/ -static int -hexToInt (unsigned char **ptr, long *intValue) -{ - int numChars = 0; - int hexValue; - - *intValue = 0; - while (**ptr) - { - hexValue = hex(**ptr); - if (hexValue >=0) - { - *intValue = (*intValue <<4) | (unsigned) hexValue; - numChars ++; - } - else - break; - (*ptr)++; - } - return (numChars); -} - - -/* Function: opcode_size - Determine number of bytes in full opcode by examining first word. -*/ -static int -opcode_size(unsigned int opcode) -{ - if ((opcode & 0xff00) == 0) - return 2; - - if ((opcode & 0xf800) == 0) - return 4; - - if ((opcode & 0xf800) == 0x7800) - return 4; - - if ((opcode & 0xf000) == 0xc000) - return 4; - - if ((opcode & 0xf100) == 0x2000) - return 4; - - if ((opcode & 0xfff0) == 0x30e0) - return 4; - - if ((opcode & 0xf008) == 0x6008) - return 4; - - if ((opcode & 0xf808) == 0x7008) - return 4; - - opcode >>= 8; - if (opcode == 0x0c || opcode == 0x0d || opcode == 0x31) - return 4; - - return 2; -} - -static struct { - unsigned long addr; - unsigned long addr2; - unsigned int opcode; - unsigned int opcode2; -} stepinfo; - -/* Function: prepare_to_step - Called from handle_exception to prepare the user program to single-step. - Places a trap instruction after the target instruction, with special - extra handling for branch instructions. -*/ - -static void -prepare_to_step(void) -{ - unsigned long pc = registers.pc; - unsigned long next_pc, next_pc2; - unsigned int op, op2, sp; - unsigned char op_msb, op_lsb; - int r12; - char r8; - - op = get_word(pc); - op_msb = (op >> 8) & 0xff; - op_lsb = op & 0xff; - op2 = get_word(pc + 2); - next_pc = pc + opcode_size(op); - next_pc2 = 0; - - if (op_msb == 0) - { - if (op_lsb == 2) - { - /* IRET */ - sp = registers.r[SP]; - next_pc = *(unsigned *)(sp - 4); - next_pc = (next_pc << 16) | *(unsigned *)(sp - 6); - } - else if (op_lsb == 3) - { - /* RET */ - sp = registers.r[SP]; - next_pc = *(unsigned *)(sp - 2); - next_pc = (next_pc << 16) | *(unsigned *)(sp - 4); - } - else - { - op2 = op_lsb & 0xf0; - if (op2 && op2 < 0x40) - { - /* {CALLR,BR,ICALLR} Rs */ - next_pc = (pc + 2) + (int)registers.r[op_lsb & 0xf]; - } - else if (op2 < 0x80 || op2 == 0xa0 || op2 == 0xb0) - { - /* {JMP,ICALL,CALL} Rb,Rs */ - next_pc = registers.r[(op_lsb & 0x10) ? 9 : 8]; - next_pc = (next_pc << 16) | (unsigned int)registers.r[op_lsb & 0xf]; - } - } - } - else if (op_msb < 4) - { - /* {CALLF,JMPF,ICALLF} a24 */ - next_pc = ((unsigned long)op2) << 8; - next_pc |= op_lsb; - } - else if (op_msb < 8) - { - if ((op2 & 0xf000) == 0) - { - /* Bx Rd,#imm4,r12 */ - /* Bx Rd,Rs,r12 */ - r12 = op2 << 4; - r12 >>= 4; - next_pc2 = (pc + 4) + r12; - } - } - else if (op_msb == 0x0c || op_msb == 0x0d || (op_msb & 0xf1) == 0x20 || - ((op_msb >= 0x7c && op_msb <= 0x7f) && (op2 & 0x8000) == 0)) - { - /* Bxx Rd,Rs,r12 */ - /* Bxx Rd,#imm8,r12 */ - /* Bx m8,#imm3,r12 */ - /* Bx s8,#imm3,r12 */ - r12 = op2 << 4; - r12 >>= 4; - next_pc2 = (pc + 4) + r12; - } - else if ((op_msb & 0xf0) == 0x10) - { - /* {BR,CALLR} r12 */ - r12 = (op & 0xffe) << 4; - r12 >>= 4; - next_pc = (pc + 2) + r12; - } - else if ((op_msb & 0xe0) == 0xc0) - { - /* Bxx Rx,#imm16,r8 */ - /* TBxx r8 */ - r8 = op_lsb; - next_pc2 = next_pc + r8; - } - - stepinfo.addr = next_pc; - stepinfo.opcode = get_word(next_pc); - set_word(next_pc, BREAKPOINT_OPCODE); - - if (next_pc2) - { - stepinfo.addr2 = next_pc2; - stepinfo.opcode2 = get_word(next_pc2); - set_word(next_pc2, BREAKPOINT_OPCODE); - } -} - -/* Function: finish_from_step - Called from handle_exception to finish up when the user program - returns from a single-step. Replaces the instructions that had - been overwritten by breakpoint. */ - -static void -finish_from_step (void) -{ - if (stepinfo.addr) /* anything to do? */ - { - set_word(stepinfo.addr, stepinfo.opcode); - stepinfo.addr = 0; - if (stepinfo.addr2) - { - set_word(stepinfo.addr2, stepinfo.opcode2); - stepinfo.addr2 = 0; - } - } -} - - -/* - * UART support - */ -#define UART0_BASE 0x7f38 -#define UART1_BASE 0x7f48 - -#define UART_CR(base) (*(volatile unsigned char *)(base)) -#define UART_RXD(base) (*(volatile unsigned int *)((base) + 2)) -#define UART_TXD(base) (*(volatile unsigned int *)((base) + 4)) - -#define UART_CR_RUN 0x80 -#define UART_CR_ERR 0x40 -#define UART_CR_BAUD_115k 0x20 -#define UART_CR_PARITY 0x10 -#define UART_CR_TXEMPTY 0x08 -#define UART_CR_TXIEN 0x04 -#define UART_CR_RXRDY 0x02 -#define UART_CR_RXIEN 0x01 - -#define DBG_UART UART0_BASE - -static void -putDebugChar(unsigned ch) -{ - while ((UART_CR(DBG_UART) & UART_CR_TXEMPTY) == 0) ; - - UART_TXD(DBG_UART) = ch; -} - -static unsigned char -getDebugChar(void) -{ - while ((UART_CR(DBG_UART) & UART_CR_RXRDY) == 0) ; - - return UART_RXD(DBG_UART); -} - -void -uart_init(void) -{ - UART_CR(DBG_UART) |= (UART_CR_RUN | UART_CR_RXIEN); -} - |