diff options
Diffstat (limited to 'libgloss/m68hc11')
-rw-r--r-- | libgloss/m68hc11/Makefile.in | 175 | ||||
-rwxr-xr-x | libgloss/m68hc11/configure | 1216 | ||||
-rw-r--r-- | libgloss/m68hc11/configure.in | 91 | ||||
-rw-r--r-- | libgloss/m68hc11/crt0.S | 69 | ||||
-rw-r--r-- | libgloss/m68hc11/sci-inout.S | 134 | ||||
-rw-r--r-- | libgloss/m68hc11/sim-valid-m68hc11.ld | 311 | ||||
-rw-r--r-- | libgloss/m68hc11/sim-valid-m68hc12.ld | 311 | ||||
-rw-r--r-- | libgloss/m68hc11/syscalls.c | 74 |
8 files changed, 0 insertions, 2381 deletions
diff --git a/libgloss/m68hc11/Makefile.in b/libgloss/m68hc11/Makefile.in deleted file mode 100644 index 32c6608f3..000000000 --- a/libgloss/m68hc11/Makefile.in +++ /dev/null @@ -1,175 +0,0 @@ -# Copyright (c) 1995, 1996, 1997 Cygnus Support -# Copyright (c) 1999, 2000, 2001, 2002 Stephane Carrez -# -# 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. -# -# This currently works with Motorola's 68HC11 based target boards. -# (should work with 68HC12 but not tested yet) - -srcdir = @srcdir@ -objdir = . -srcroot = $(srcdir)/../.. -objroot = $(objdir)/../.. - -VPATH = $(srcdir) $(srcdir)/.. - -prefix = @prefix@ -exec_prefix = @exec_prefix@ - -host_alias = @host_alias@ -target_alias = @target_alias@ -program_transform_name = @program_transform_name@ - -bindir = @bindir@ -libdir = @libdir@ -tooldir = $(exec_prefix)/$(target_alias) - -# Multilib support variables. -# TOP is used instead of MULTI{BUILD,SRC}TOP. -MULTIDIRS = -MULTISUBDIR = -MULTIDO = true -MULTICLEAN = true - -INSTALL = @INSTALL@ -INSTALL_PROGRAM = @INSTALL_PROGRAM@ -INSTALL_DATA = @INSTALL_DATA@ - -SHELL = /bin/sh - -CC = @CC@ - -AS = @AS@ -AR = @AR@ -LD = @LD@ -RANLIB = @RANLIB@ -AR_FLAGS = qv - -OBJDUMP = `if [ -f ${objroot}/../binutils/objdump ] ; \ - then echo ${objroot}/../binutils/objdump ; \ - else t='$(program_transform_name)'; echo objdump | sed -e $$t ; fi` -OBJCOPY = `if [ -f ${objroot}/../binutils/objcopy ] ; \ - then echo ${objroot}/../binutils/objcopy ; \ - else t='$(program_transform_name)'; echo objcopy | sed -e $$t ; fi` - -SCRIPTS = sim-valid - -OBJS = syscalls.o close.o fstat.o getpid.o isatty.o kill.o \ - lseek.o open.o print.o stat.o \ - unlink.o sci-inout.o - -CFLAGS = - -CRT0 = crt0.o - -# -# here's all the generic target stuff -# -GEN_LDFLAGS= -L${srcdir} -BSP= libbcc.a - -# 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: ${CRT0} ${BSP} - -# -# here's where we build the board support packages for each target -# -${BSP}: $(OBJS) - ${AR} ${ARFLAGS} $@ $(OBJS) - ${RANLIB} $@ - - -syscalls.o: $(srcdir)/syscalls.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - -close.o: $(srcdir)/../close.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - -fstat.o: $(srcdir)/../fstat.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - -getpid.o: $(srcdir)/../getpid.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - -isatty.o: $(srcdir)/../isatty.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - -kill.o: $(srcdir)/../kill.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - -lseek.o: $(srcdir)/../lseek.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - -open.o: $(srcdir)/../open.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - -print.o: $(srcdir)/../print.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - -putnum.o: $(srcdir)/../putnum.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - -stat.o: $(srcdir)/../stat.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - -unlink.o: $(srcdir)/../unlink.c - $(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $< - - -.PHONY: install info dvi doc install-info clean-info - -clean mostlyclean: - rm -f a.out core *.[oais] *-test *.srec *.dis *.x syscall.h - -distclean maintainer-clean realclean: clean - rm -f Makefile config.status *~ - -.PHONY: install info install-info clean-info -install: install-scripts - $(INSTALL_PROGRAM) $(CRT0) $(tooldir)/lib${MULTISUBDIR}/$(CRT0) - @for bsp in ${BSP}; do\ - $(INSTALL_PROGRAM) $${bsp} $(tooldir)/lib${MULTISUBDIR}; \ - done - -# Install the linker script in the correct place. -install-scripts: - if [ -f ${objroot}/../binutils/objdump ] ; then \ - objdump="${objroot}/../binutils/objdump"; \ - else \ - t='$(program_transform_name)'; \ - objdump=`echo objdump | sed -e $$t`; \ - fi ; \ - name=`$$objdump -f $(CRT0) | sed '/^$$/d'`; \ - case $$name in \ - *elf32-m68hc11*) \ - $(INSTALL_DATA) ${srcdir}/sim-valid-m68hc11.ld $(tooldir)/lib${MULTISUBDIR}/sim-valid.ld \ - ;; \ - *elf32-m68hc12*) \ - $(INSTALL_DATA) ${srcdir}/sim-valid-m68hc12.ld $(tooldir)/lib${MULTISUBDIR}/sim-valid.ld \ - ;; \ - esac - -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/m68hc11/configure b/libgloss/m68hc11/configure deleted file mode 100755 index 775777139..000000000 --- a/libgloss/m68hc11/configure +++ /dev/null @@ -1,1216 +0,0 @@ -#! /bin/sh - -# Guess values for system-dependent variables and create Makefiles. -# Generated automatically using autoconf version 2.13 -# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc. -# -# This configure script is free software; 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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. - */ - -;----------------------------------------- -; startup code -;----------------------------------------- - .file "crt0.s" - -;; -;; -;; The linker concatenate the .install* sections in the following order: -;; -;; .install0 Setup the stack pointer -;; .install1 Place holder for applications -;; .install2 Optional installation of data section in memory -;; .install3 Place holder for applications -;; .install4 Invokes the main -;; - .sect .install0,"ax",@progbits - .globl _start - -_start: -;; -;; At this step, the stack is not initialized and interrupts are masked. -;; Applications only have 64 cycles to initialize some registers. -;; -;; To have a generic/configurable startup, initialize the stack to -;; the end of some memory region. The _stack symbol is defined by -;; the linker. -;; - lds #_stack - - .sect .install2,"ax",@progbits -;; -;; Call a specific initialization operation. The default is empty. -;; It can be overriden by applications. It is intended to initialize -;; the 68hc11 registers. Function prototype is: -;; -;; int __premain(void); -;; - jsr __premain - -;; -;; -;; - .sect .install4,"ax",@progbits - jsr main -fatal: - jsr exit - bra fatal - -;----------------------------------------- -; end startup code -;----------------------------------------- -;; Force loading of data section mapping and bss clear - .globl __map_data_section - .globl __init_bss_section - diff --git a/libgloss/m68hc11/sci-inout.S b/libgloss/m68hc11/sci-inout.S deleted file mode 100644 index 070fd7da2..000000000 --- a/libgloss/m68hc11/sci-inout.S +++ /dev/null @@ -1,134 +0,0 @@ -/* M68HC11/M68HC12 serial line operations - * Copyright (C) 1999, 2001 Stephane Carrez (stcarrez@nerim.fr) - * - * 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. - */ - -#ifdef mc68hc12 - SC0CR1 = 0xC2 - SC0CR2 = 0xC3 - SC0SR1 = 0xC4 - SC0DRL = 0xC7 - SC0BD = 0xC0 - - .sect .data - .globl _m68hc12_ports -_m68hc12_ports: .word 0 - - .sect .text - .globl outbyte -;;; -;;; int outbyte(char c); -;;; -;;; B : Character to send -;;; -outbyte: - bsr _sci_init -L1: - ldaa SC0SR1,x - bge L1 - stab SC0DRL,x - ldab SC0CR2,x - orab #0x8 - stab SC0CR2,x - rts - - .sect .text - .globl inbyte -;;; -;;; char inbyte(void); -;;; -inbyte: - bsr _sci_init - ldaa SC0SR1,x - bita #0x20 - beq inbyte - ldab SC0CR2,x - rts - - .globl _sci_init - .sect .text -_sci_init: - ldx _m68hc12_ports - beq do_init - dex - rts -do_init: - ldx #0x1 - stx _m68hc12_ports - dex - ldd #26 - std SC0BD,x - ldaa #0 - staa SC0CR1,x - ldaa #0xC - staa SC0CR2,x - rts -#else - BAUD = 0x2b - SCCR1= 0x2c - SCCR2= 0x2d - SCSR = 0x2e - SCDR = 0x2f - - .sect .data - .globl _m68hc11_ports -_m68hc11_ports: .word 0 - - .sect .text - .globl outbyte -;;; -;;; int outbyte(char c); -;;; -;;; B : Character to send -;;; -outbyte: - bsr _sci_init -L1: - ldaa SCSR,x - bge L1 - stab SCDR,x - ldab SCCR2,x - orab #0x8 - stab SCCR2,x - rts - - .sect .text - .globl inbyte -;;; -;;; char inbyte(void); -;;; -inbyte: - bsr _sci_init - ldaa SCSR,x - bita #0x20 - beq inbyte - ldab SCDR,x - rts - - .globl _sci_init - .sect .text -_sci_init: - ldx _m68hc11_ports - beq do_init - rts -do_init: - ldx #0x1000 - stx _m68hc11_ports - ldaa #0x30 - staa BAUD,x - clra - staa SCCR1,x - ldaa #0xC - staa SCCR2,x - rts - -#endif diff --git a/libgloss/m68hc11/sim-valid-m68hc11.ld b/libgloss/m68hc11/sim-valid-m68hc11.ld deleted file mode 100644 index 86b336eca..000000000 --- a/libgloss/m68hc11/sim-valid-m68hc11.ld +++ /dev/null @@ -1,311 +0,0 @@ -/* Linker script for 68HC11 executable (PROM). */ -ENTRY(_start) -OUTPUT_FORMAT("elf32-m68hc11", "elf32-m68hc11", "elf32-m68hc11") -OUTPUT_ARCH(m68hc11) - -GROUP(-lc -lbcc -lgcc) -SEARCH_DIR(.); -/* Fixed definition of the available memory banks. - See generic emulation script for a user defined configuration. */ - -/* The memory layout below is suitable for gcc validation. - It takes care of big programs allowing up to 48128 bytes - of text while allowing some programs that consume some - memory (comp-goto-1 requires the RAM to be set to 0x4400 - to avoid head<->stack collision in malloc/sbrk). */ -MEMORY -{ - page0 (rwx) : ORIGIN = 0x00, LENGTH = 256 - text (rx) : ORIGIN = 0x04400, LENGTH = 0x10000 - 0x4400 - data : ORIGIN = 0x01100, LENGTH = 0x2000 - 0x1100 -} -/* Setup the stack on the top of the data memory bank. */ -PROVIDE (_stack = 0x04400 - 1); 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This is supposed to force the loading - of _map_data.o (from libgcc.a) when the .data section is not empty. - By doing so, this should bring the code that copies the .data section - from ROM to RAM at init time. - ___pre_comp_data_size = SIZEOF(.data); - __install_data_sections = ___pre_comp_data_size > 0 ? - __map_data_sections : 0; -*/ - /* .install : - { - . = _data_image_end; - } > text */ - /* Relocation for some bss and data sections. */ - .bss : - { - __bss_start = .; - *(.sbss) - *(.scommon) - *(.dynbss) - *(.bss) - *(.bss.*) - *(.gnu.linkonce.b.*) - *(COMMON) - PROVIDE (_end = .); - } > data - __bss_size = SIZEOF(.bss); - PROVIDE (__bss_size = SIZEOF(.bss)); - /* If the 'vectors_addr' symbol is defined, it indicates the start address - of interrupt vectors. This depends on the 68HC11 operating mode: - Addr - Single chip 0xffc0 - Extended mode 0xffc0 - Bootstrap 0x00c0 - Test 0xbfc0 - In general, the vectors address is 0xffc0. 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It's necessary - to avoid that the DWARF section is relocated before such undefined - symbols are found. */ - /* 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) } -} diff --git a/libgloss/m68hc11/sim-valid-m68hc12.ld b/libgloss/m68hc11/sim-valid-m68hc12.ld deleted file mode 100644 index 6b15ed2e5..000000000 --- a/libgloss/m68hc11/sim-valid-m68hc12.ld +++ /dev/null @@ -1,311 +0,0 @@ -/* Linker script for 68HC12 executable (PROM). */ -ENTRY(_start) -OUTPUT_FORMAT("elf32-m68hc12", "elf32-m68hc12", "elf32-m68hc12") -OUTPUT_ARCH(m68hc12) - -GROUP(-lc -lbcc -lgcc) -SEARCH_DIR(.); -/* Fixed definition of the available memory banks. - See generic emulation script for a user defined configuration. */ - -/* The memory layout below is suitable for gcc validation. - It takes care of big programs allowing up to 48128 bytes - of text while allowing some programs that consume some - memory (comp-goto-1 requires the RAM to be set to 0x4400 - to avoid head<->stack collision in malloc/sbrk). */ -MEMORY -{ - page0 (rwx) : ORIGIN = 0x00, LENGTH = 256 - text (rx) : ORIGIN = 0x04400, LENGTH = 0x10000 - 0x4400 - data : ORIGIN = 0x01100, LENGTH = 0x2000 - 0x1100 -} -/* Setup the stack on the top of the data memory bank. */ -PROVIDE (_stack = 0x04400 - 1); -SECTIONS -{ - .hash : { *(.hash) } - .dynsym : { *(.dynsym) } - .dynstr : { *(.dynstr) } - .gnu.version : { *(.gnu.version) } - .gnu.version_d : { *(.gnu.version_d) } - .gnu.version_r : { *(.gnu.version_r) } - .rel.text : - { - *(.rel.text) - *(.rel.text.*) - *(.rel.gnu.linkonce.t.*) - } - .rela.text : - { - *(.rela.text) - *(.rela.text.*) - *(.rela.gnu.linkonce.t.*) - } - .rel.data : - { - *(.rel.data) - *(.rel.data.*) - *(.rel.gnu.linkonce.d.*) - } - .rela.data : - { - *(.rela.data) - *(.rela.data.*) - *(.rela.gnu.linkonce.d.*) - } - .rel.rodata : - { - *(.rel.rodata) - *(.rel.rodata.*) - *(.rel.gnu.linkonce.r.*) - } - .rela.rodata : - { - *(.rela.rodata) - *(.rela.rodata.*) - *(.rela.gnu.linkonce.r.*) - } - .rel.sdata : - { - *(.rel.sdata) - *(.rel.sdata.*) - *(.rel.gnu.linkonce.s.*) - } - .rela.sdata : - { - *(.rela.sdata) - *(.rela.sdata.*) - *(.rela.gnu.linkonce.s.*) - } - .rel.sbss : - { - *(.rel.sbss) - *(.rel.sbss.*) - *(.rel.gnu.linkonce.sb.*) - } - .rela.sbss : - { - *(.rela.sbss) - *(.rela.sbss.*) - *(.rel.gnu.linkonce.sb.*) - } - .rel.bss : - { - *(.rel.bss) - *(.rel.bss.*) - *(.rel.gnu.linkonce.b.*) - } - .rela.bss : - { - *(.rela.bss) - *(.rela.bss.*) - *(.rela.gnu.linkonce.b.*) - } - .rela.stext : { *(.rela.stest) } - .rela.etext : { *(.rela.etest) } - .rela.sdata : { *(.rela.sdata) } - .rela.edata : { *(.rela.edata) } - .rela.eit_v : { *(.rela.eit_v) } - .rela.ebss : { *(.rela.ebss) } - .rela.srodata : { *(.rela.srodata) } - .rela.erodata : { *(.rela.erodata) } - .rela.got : { *(.rela.got) } - .rela.ctors : { *(.rela.ctors) } - .rela.dtors : { *(.rela.dtors) } - .rela.init : { *(.rela.init) } - .rela.fini : { *(.rela.fini) } - .rela.plt : { *(.rela.plt) } - .rel.stext : { *(.rel.stest) } - .rel.etext : { *(.rel.etest) } - .rel.sdata : { *(.rel.sdata) } - .rel.edata : { *(.rel.edata) } - .rel.ebss : { *(.rel.ebss) } - .rel.eit_v : { *(.rel.eit_v) } - .rel.srodata : { *(.rel.srodata) } - .rel.erodata : { *(.rel.erodata) } - .rel.got : { *(.rel.got) } - .rel.ctors : { *(.rel.ctors) } - .rel.dtors : { *(.rel.dtors) } - .rel.init : { *(.rel.init) } - .rel.fini : { *(.rel.fini) } - .rel.plt : { *(.rel.plt) } - /* Concatenate .page0 sections. 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The data image must be copied at init time. - Refer to GNU ld, Section 3.6.8.2 Output Section LMA. */ - .data : AT (__data_image) - { - __data_section_start = .; - PROVIDE (__data_section_start = .); - *(.sdata) - *(.data) - *(.data.*) - *(.data1) - *(.gnu.linkonce.d.*) - CONSTRUCTORS - _edata = .; - PROVIDE (edata = .); - } > data - __data_section_size = SIZEOF(.data); - PROVIDE (__data_section_size = SIZEOF(.data)); - __data_image_end = __data_image + __data_section_size; -/* SCz: this does not work yet... This is supposed to force the loading - of _map_data.o (from libgcc.a) when the .data section is not empty. - By doing so, this should bring the code that copies the .data section - from ROM to RAM at init time. - ___pre_comp_data_size = SIZEOF(.data); - __install_data_sections = ___pre_comp_data_size > 0 ? - __map_data_sections : 0; -*/ - /* .install : - { - . = _data_image_end; - } > text */ - /* Relocation for some bss and data sections. */ - .bss : - { - __bss_start = .; - *(.softregs) - *(.sbss) - *(.scommon) - *(.dynbss) - *(.bss) - *(.bss.*) - *(.gnu.linkonce.b.*) - *(COMMON) - PROVIDE (_end = .); - } > data - __bss_size = SIZEOF(.bss); - PROVIDE (__bss_size = SIZEOF(.bss)); - /* If the 'vectors_addr' symbol is defined, it indicates the start address - of interrupt vectors. This depends on the 68HC11 operating mode: - Addr - Single chip 0xffc0 - Extended mode 0xffc0 - Bootstrap 0x00c0 - Test 0xbfc0 - In general, the vectors address is 0xffc0. This can be overriden - with the '-defsym vectors_addr=0xbfc0' ld option. - Note: for the bootstrap mode, the interrupt vectors are at 0xbfc0 but - they are redirected to 0x00c0 by the internal PROM. Application's vectors - must also consist of jump instructions (see Motorola's manual). */ - PROVIDE (_vectors_addr = DEFINED (vectors_addr) ? vectors_addr : 0xffc0); - .vectors DEFINED (vectors_addr) ? vectors_addr : 0xffc0 : - { - *(.vectors) - } - /* 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. - Treatment of DWARF debug section must be at end of the linker - script to avoid problems when there are undefined symbols. It's necessary - to avoid that the DWARF section is relocated before such undefined - symbols are found. */ - /* 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) } -} diff --git a/libgloss/m68hc11/syscalls.c b/libgloss/m68hc11/syscalls.c deleted file mode 100644 index 071583d9c..000000000 --- a/libgloss/m68hc11/syscalls.c +++ /dev/null @@ -1,74 +0,0 @@ -/* pseudo system calls for M68HC11 & M68HC12. - * Copyright (C) 1999, 2000, 2001, 2002 Stephane Carrez (stcarrez@nerim.fr) - * - * 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 <sys/stat.h> -#include <unistd.h> - -extern void outbyte(char c); -extern char inbyte(void); - -int -read(int file, void *p, size_t nbytes) -{ - int i = 0; - char* buf = (char*) p; - - for (i = 0; i < nbytes; i++) { - *(buf + i) = inbyte(); - if ((*(buf + i) == '\n') || (*(buf + i) == '\r')) { - i++; - break; - } - } - return (i); -} - -int -write(int file, const void *p, size_t len) -{ - const char *ptr = (const char*) p; - int todo; - - for (todo = len; todo; --todo) - { - outbyte (*ptr++); - } - return(len); -} - -void * -sbrk(size_t incr) -{ - extern char _end; /* Defined by the linker */ - static char *heap_end; - char *prev_heap_end; - - register char *stack_ptr asm ("sp"); - - if (heap_end == 0) - { - heap_end = &_end; - } - prev_heap_end = heap_end; - if (heap_end + incr > stack_ptr) - { - write (1, "Heap and stack collision\n", 25); - abort (); - } - heap_end += incr; - return ((void*) prev_heap_end); -} - -/* end of syscalls.c */ |