From 12cb181da7dffe5baba2c6ff78f7d35191273b07 Mon Sep 17 00:00:00 2001 From: Jeff Johnston Date: Mon, 11 Dec 2006 19:58:01 +0000 Subject: 2006-12-11 Kazu Hirata Merge from newlib-csl-20060320-branch: 2006-12-01 Nathan Sidwell Kazu Hirata * m68k/Makefile.in (CF_ISRS): Use addprefix. 2006-11-01 Nathan Sidwell * m68k/Makefile.in (CFLAGS): Do not clear. Add to all compilations. (ARFLAGS): Remove commented out definition. * m68k/configure.in (DO) Set to list of target cpu families. * m68k/configure: Rebuilt. * m68k/Makefile.in (DO): New. (UNHOSTED_BSP, UNHOSTED_OBJS, HOSTED_BSP, HOSTED_OBJS): Move later. (m5208evb, m5213evb, m52235evb, m5235evb, m5273c3, m5275evb, m5282evb, m5329evb, m5485evb): Move earlier. (all): Add all_$DO dependencies. (all_cf, all_m68k): New targets, depend on cf & m68k bsps as appropriate. (m%-ram.ld, m%-rom.ld, m%-ram-hosted.ld, m%-rom-hosted.ld): Add 'm' prefix. (install): Add install_$DO dependencies. (install_cf, install_m68k): New targets. Perform cf and m68k installs as appropriate. (install_io): New, install the io libraries. 2006-10-23 Nathan Sidwell * m68k/Makefile.in (CF_CRT0): Rename to CF_CRT0S, separate hosted & unhosted versions. (CF_OBJS): Add cf-isv.o. (CF_SOURCES): Add cf-isv.S. (cf-hosted-crt0.o, cf-unhosted-crt0.o): New targets. * m68k/cf-isv.S: New, broken out of ... * m68k/cf-crt0.S: ... here. Add HOSTED & UNHOSTED differences. * m68k/cf-crt1.c (__start1): Add heap_limit argument. (__heap_limit): Define. * m68k/cf-sbrk.c (__heap_limit): Declare. (sbrk): Adjust for __heap_limit. * m68k/cf.sc: Use different crt0's for hosted & unhosted. Install a separate isv.o file. * m68k/io.h (HOSTED_PUTCHAR): Replace with ... (HOSTED_INIT_SIM): ... this. 2006-10-20 Nathan Sidwell * m68k/Makefile.in (CF_BOARDS): Add m5275evb. (m5275evb): New board. 2006-10-20 Vladimir Prus * m68k/cf.sc: Add linkonce sections and DWARF sections. 2006-10-07 Nathan Sidwell * m68k/Makefile.in: Adjust Coldfire rules. (BDM_CRT0, BDM_BSP, BDM_OBJS, BDM_ISRS): Rename to ... (CF_CRT0, CF_BSP, CF_OBJS, CF_ISRS): ... here. Adjust. (BDM_OTHER_OBJS): Remove. (BDM_SYSOBJS): Rename to ... (UNHOSTED_OBJS): ... here. Adjust. (UNHOSTED_BSP, HOSTED_OBJS, HOSTED_BSP): New. (CF_HOSTED_SCRIPTS): New. (CF_SCRIPTS, CF_SOURCES): Adjust. * m68k/cf.sc: Add IO library variable. * m68k/bdm-crt0.S, m68k/bdm-crt1.c, m68k/bdm-isrs.c, m68k/bdm-sbrk.c, m68k/bdm-semihost.S: Rename to ... * m68k/cf-crt0.S, m68k/cf-crt1.c, m68k/cf-isrs.c, m68k/cf-sbrk.c, m68k/cf-hosted.S: ... here. * m68k/cf-exit.c: New. * m68k/bdm-gdb.h, m68k/bdm-semihost.h: Merge into ... * m68k/io.h: ... here. Add unhosted support. Adjust conversion function names. * m68k/bdm-gdb.c: Rename to ... * m68k/io-gdb.c: ... here. Adjust names of conversion functions. * m68k/bdm-close.c, m68k/bdm-exit.c, m68k/bdm-fstat.c, m68k/bdm-gettimeofday.c, m68k/bdm-isatty.c, m68k/bdm-lseek.c, m68k/bdm-open.c, m68k/bdm-read.c, m68k/bdm-rename.c, m68k/bdm-stat.c, m68k/bdm-system.c, m68k/bdm-time.c, m68k/bdm-unlink.c, m68k/bdm-write.c: Rename to ... * m68k/io-close.c, m68k/io-exit.c, m68k/io-fstat.c, m68k/io-gettimeofday.c, m68k/io-isatty.c, m68k/io-lseek.c, m68k/io-open.c, m68k/io-read.c, m68k/io-rename.c, m68k/io-stat.c, m68k/io-system.c, m68k/io-time.c, m68k/io-unlink.c, m68k/io-write.c: ... here. Include io.h. Adjust for hosted & unhosted libraries. Adjust names of gdb conversion functions. 2006-09-29 Nathan Sidwell * m68k/bdm-semihost.S: Add more comments. Make instruction weirder. 2006-09-22 Nathan Sidwell * m68k/bdm-crt1.c (hardware_init_hook): Use #defines for CACR bits. 2006-09-18 Nathan Sidwell * m68k/Makefile.in: Don't force a frame pointer on the ISRs. * m68k/bdm-crt1.c (__start1): Don't set the VBR here. (hardeare_init_hook): Define weakly. Set VBR here, enable caching if supported. * m68k/Makefile.in (bdm-semihost.o): Build from bdm-semihost.S. * m68k/bdm-semihost.c: Remove. * m68k/bdm-semihost.S: New. * m68k/bdm-crt0.S: Don't install semihosting trap handler. * m68k/bdm-close.c, bdm-exit.c, bdm-fstat.c, bdm-gettimeofday.c, bdm-isatty.c, bdm-lseek.c, bdm-open.c, bdm-read.c, bdm-rename.c, bdm-stat.c, bdm-system.c, bdm-unlink.c, bdm-write.c): Update. * m68k/bdm-isrs.c: Update comment. * m68k/bdm-semihost.h (BDM_TRAPNUM, BDM_FUNC_REG, BDM_ARG_REG, BDM_TRAP): Remove. (__bdm_semihost): Declare. 2006-09-15 Nathan Sidwell * m68k/Makefile.in (BDM_OTHER_OBJS): Remove sbrk.o. (BDM_SYSOBJS): Add bdm-sbrk.o. * m68k/bdm-sbrk.c: New. 2006-09-06 Nathan Sidwell * m68k/Makefile.in (CF_SOURCES): New. (install): Install them. 2006-09-01 Nathan Sidwell * m68k/cf.sc: Add .jcr section to .text. --- libgloss/m68k/io-read.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 libgloss/m68k/io-read.c (limited to 'libgloss/m68k/io-read.c') diff --git a/libgloss/m68k/io-read.c b/libgloss/m68k/io-read.c new file mode 100644 index 000000000..2cf3555e8 --- /dev/null +++ b/libgloss/m68k/io-read.c @@ -0,0 +1,47 @@ +/* + * io-read.c -- + * + * Copyright (c) 2006 CodeSourcery 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 +#include +#define IO read +#include "io.h" + +/* + * read -- read from a file descriptor + * input parameters: + * 0 : file descriptor + * 1 : buf ptr + * 2 : count + * output parameters: + * 0 : result + * 1 : errno + */ + +ssize_t read (int fd, void *buf, size_t count) +{ +#if HOSTED + gdb_parambuf_t parameters; + parameters[0] = (uint32_t) fd; + parameters[1] = (uint32_t) buf; + parameters[2] = (uint32_t) count; + __hosted (HOSTED_READ, parameters); + errno = __hosted_from_gdb_errno (parameters[1]); + return parameters[0]; +#else + errno = ENOSYS; + return -1; +#endif +} -- cgit v1.2.3