From 5ae419f6845ff28bcbdb339cdfb66f6b2e46f9ab Mon Sep 17 00:00:00 2001 From: patacongo Date: Thu, 25 Oct 2012 20:06:46 +0000 Subject: Add an example for testing the ELF loader git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5260 42af7a65-404d-4744-a932-0658087f49c3 --- apps/examples/elf/tests/task/Makefile | 58 ++++++++++++++ apps/examples/elf/tests/task/task.c | 143 ++++++++++++++++++++++++++++++++++ 2 files changed, 201 insertions(+) create mode 100644 apps/examples/elf/tests/task/Makefile create mode 100644 apps/examples/elf/tests/task/task.c (limited to 'apps/examples/elf/tests/task') diff --git a/apps/examples/elf/tests/task/Makefile b/apps/examples/elf/tests/task/Makefile new file mode 100644 index 000000000..28047965e --- /dev/null +++ b/apps/examples/elf/tests/task/Makefile @@ -0,0 +1,58 @@ +############################################################################ +# examples/elf/tests/task/Makefile +# +# Copyright (C) 2012 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# 3. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +############################################################################ + +-include $(TOPDIR)/.config +-include $(TOPDIR)/Make.defs + +BIN = task + +SRCS = $(BIN).c +OBJS = $(BIN:.c=.o) + +all: $(BIN) + +$(OBJS): %.o: %.c + @echo "CC: $<" + @$(CC) -c $(CFLAGS) $< -o $@ + +$(BIN): $(OBJS) + @echo "LD: $<" + @$(LD) $(LDELFFLAGS) -o $@ $^ + +clean: + @rm -f $(BIN) *.o *~ .*.swp core + +install: + @install -D $(BIN) $(ROMFS_DIR)/$(BIN) diff --git a/apps/examples/elf/tests/task/task.c b/apps/examples/elf/tests/task/task.c new file mode 100644 index 000000000..15802fc00 --- /dev/null +++ b/apps/examples/elf/tests/task/task.c @@ -0,0 +1,143 @@ +/**************************************************************************** + * examples/elf/tests/task/parent.c + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +static char child_name[] = "child"; +static char child_arg[] = "Hello from your parent!"; +static sem_t g_sem; + +#if CONFIG_TASK_NAME_SIZE == 0 +static char no_name[] = ""; +#endif + +/**************************************************************************** + * Privite Functions + ****************************************************************************/ + +/* NOTE: it is necessary for functions that are referred to by function pointers + * pointer to be declared with global scope (at least for ARM). Otherwise, + * a relocation type that is not supported by ELF is generated by GCC. + */ + + int child_task(int argc, char **argv) +{ + printf("Child: execv was successful!\n"); + printf("Child: argc=%d\n", argc); + + if (argc != 2) + { + printf("Child: expected argc to be 2\n"); + printf("Child: Exit-ting with status=2\n"); + exit(2); + } + printf("Child: argv[0]=\"%s\"\n", argv[0]); + +#if CONFIG_TASK_NAME_SIZE == 0 + if (strcmp(argv[0], no_name) != 0) + { + printf("Child: expected argv[0] to be \"%s\"\n", no_name); + printf("Child: Exit-ting with status=3\n"); + exit(3); + } +#else + if (strncmp(argv[0], child_name, CONFIG_TASK_NAME_SIZE) != 0) + { + printf("Child: expected argv[0] to be \"%s\"\n", child_name); + printf("Child: Exit-ting with status=3\n"); + exit(3); + } +#endif + + printf("Child: argv[1]=\"%s\"\n", argv[1]); + + if (strcmp(argv[1], child_arg) != 0) + { + printf("Child: expected argv[1] to be \"%s\"\n", child_arg); + printf("Child: Exit-ting with status=4\n"); + exit(4); + } + + printf("Child: Exit-ting with status=0\n"); + sem_post(&g_sem); + return 0; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +int main(int argc, char **argv) +{ + pid_t parent_pid = getpid(); + char *child_argv[2]; + pid_t child_pid; + + printf("Parent: Started, pid=%d\n", parent_pid); + + sem_init(&g_sem, 0, 0); + + printf("Parent: Calling task_create()\n"); + + child_argv[0] = child_arg; + child_argv[1] = 0; + child_pid = task_create(child_name, 50, 512, child_task, (const char**)child_argv); + if (child_pid < 0) + { + printf("Parent: task_create failed: %d\n", errno); + } + + printf("Parent: Waiting for child (pid=%d)\n", child_pid); + sem_wait(&g_sem); + printf("Parent: Exit-ing\n"); + sem_destroy(&g_sem); + return 0; +} + -- cgit v1.2.3