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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-10-25 20:06:46 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-10-25 20:06:46 +0000 |
commit | 5ae419f6845ff28bcbdb339cdfb66f6b2e46f9ab (patch) | |
tree | 871dcd80c04a5b65c613cbc80c92a83d7bbbbe46 /apps/examples/elf/tests/errno | |
parent | 8cbc20e05c24cc3e2b0b4774f4850357b9f46595 (diff) | |
download | px4-nuttx-5ae419f6845ff28bcbdb339cdfb66f6b2e46f9ab.tar.gz px4-nuttx-5ae419f6845ff28bcbdb339cdfb66f6b2e46f9ab.tar.bz2 px4-nuttx-5ae419f6845ff28bcbdb339cdfb66f6b2e46f9ab.zip |
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
Diffstat (limited to 'apps/examples/elf/tests/errno')
-rw-r--r-- | apps/examples/elf/tests/errno/Makefile | 59 | ||||
-rw-r--r-- | apps/examples/elf/tests/errno/errno.c | 83 |
2 files changed, 142 insertions, 0 deletions
diff --git a/apps/examples/elf/tests/errno/Makefile b/apps/examples/elf/tests/errno/Makefile new file mode 100644 index 000000000..d3b12aa2e --- /dev/null +++ b/apps/examples/elf/tests/errno/Makefile @@ -0,0 +1,59 @@ +############################################################################ +# examples/elf/tests/hello/Makefile +# +# Copyright (C) 2012 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt <gnutt@nuttx.org> +# +# 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 = errno + +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/errno/errno.c b/apps/examples/elf/tests/errno/errno.c new file mode 100644 index 000000000..adc88ddd3 --- /dev/null +++ b/apps/examples/elf/tests/errno/errno.c @@ -0,0 +1,83 @@ +/**************************************************************************** + * examples/elf/tests/errno/errno.c + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * 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 <stdio.h> +#include <stdlib.h> +#include <errno.h> + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +static const char g_nonexistent[] = "aflav-sautga-ay"; + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +int main(int argc, char **argv) +{ + FILE *test_stream; + + /* Try using stdout and stderr explicitly. These are global variables + * exported from the base code. + */ + + fprintf(stdout, "Hello, World on stdout\n"); + fprintf(stderr, "Hello, World on stderr\n"); + + /* Try opening a non-existent file using buffered IO. */ + + test_stream = fopen(g_nonexistent, "r"); + if (test_stream) + { + fprintf(stderr, "Hmm... Delete \"%s\" and try this again\n", + g_nonexistent); + exit(1); + } + + /* Now print the errno on stderr. Errno is also a global + * variable exported by the base code. + */ + + fprintf(stderr, "We failed to open \"%s!\" errno is %d\n", + g_nonexistent, errno); + + return 0; +} |