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added userspace testcase for fork() and execve() syscalls

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This commit is contained in:
Steffen Vogel 2014-01-28 14:31:17 +01:00
parent e740cf265e
commit c70c488336
4 changed files with 66 additions and 4 deletions
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1
.gitignore vendored
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@ -17,6 +17,7 @@ tools/make_initrd
tools/scc_bootinfo.asm
newlib/examples/hello
newlib/examples/memtest
newlib/examples/fork
newlib/examples/jacobi
newlib/examples/echo
newlib/examples/tests

4
apps/memory.c
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@ -307,9 +307,9 @@ int memory(void* arg)
malloc();
kprintf("======== USER: test userspace...\n");
char* argv[] = {"/bin/memtest", "17", "kb", "5", NULL};
char* argv[] = {"/bin/fork", NULL};
ret = create_user_task(&id, argv[0], argv);
test(!ret, "calling %s %s %s %s with id = %i:\n", argv[0], argv[1], argv[2], argv[3], id);
test(!ret, "calling %s with id = %i, ret = %i", argv[0], id, ret);
wait(&ret);
test(!ret, "userspace task returned with code = %d", ret);

10
newlib/examples/Makefile
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@ -11,7 +11,7 @@ LDFLAGS =
default: all
all: memtest hello tests jacobi mshell server client rlogind
all: memtest hello tests jacobi mshell server client rlogind fork
jacobi: jacobi.o
$(CC_FOR_TARGET) -T link.ld -o $@ $(LDFLAGS) $< -lm
@ -24,7 +24,13 @@ memtest: memtest.o
$(OBJCOPY_FOR_TARGET) $(KEEP_DEBUG) $@ $@.sym
$(OBJCOPY_FOR_TARGET) $(STRIP_DEBUG) $@
chmod a-x $@.sym
fork: fork.o
$(CC_FOR_TARGET) -T link.ld -o $@ $(LDFLAGS) $<
$(OBJCOPY_FOR_TARGET) $(KEEP_DEBUG) $@ $@.sym
$(OBJCOPY_FOR_TARGET) $(STRIP_DEBUG) $@
chmod a-x $@.sym
tests: tests.o
$(CC_FOR_TARGET) -T link.ld -o $@ $(LDFLAGS) $<
$(OBJCOPY_FOR_TARGET) $(KEEP_DEBUG) $@ $@.sym

55
newlib/examples/fork.c Normal file
View file

@ -0,0 +1,55 @@
/*
* Copyright 2013 Steffen Vogel, Chair for Operating Systems,
* RWTH Aachen University
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of MetalSVM.
*/
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <errno.h>
int main(int argc, char** argv)
{
printf("======== USER: test forking...\n");
int id = fork();
int ret = 0;
if (id < 0) {
perror(" PARENT: fork");
exit(-1);
}
else if (id == 0) {
printf(" CHILD: This is the child. My pid is %u\n", getpid());
printf(" CHILD: Running memtest...\n");
const char *argv[] = {"/bin/memtest", "512", "kb", "10", NULL};
execve(argv[0], argv, NULL);
perror(" CHILD: exec() returned: ");
ret = -1;
}
else {
printf(" PARENT: Here is the parent. My pid is %u\n", getpid());
wait(&ret);
printf(" PARENT: My child returned with code %i...\n", ret);
}
return ret;
}