Few minor fixes

conts/posix/test0/container.c

@@ -15,15 +15,15 @@ int main(int argc, char *argv[]);
 int __container_init(int argc, char **argv)
 {
 	void *envp = &argv[argc + 1];
-//	char *pagerval;
+	char *pagerval;
 
 	if ((char *)envp == *argv)
 		envp = &argv[argc];
 
 	__libposix_init(envp);
 
-	//pagerval = getenv("pagerid");
-	//printf("Pager id: %s\n", pagerval);
+	pagerval = getenv("pagerid");
+	printf("Pager id: %s\n", pagerval);
 
 	/* Generic L4 thread initialisation */
 	__l4_init();

conts/posix/test0/include/test_exec_linker.lds

@@ -5,7 +5,7 @@
  */
 
 virtual_base = 0x10000000;
-/* __stack = (0x20000000 - 0x1000 - 8); */
+
 /* First page before the env/args */
 
 

conts/posix/test0/include/tests.h

@@ -3,7 +3,7 @@
 
 #define __TASKNAME__			"test0"
 
- #define TEST_VERBOSE_PRINT
+//#define TEST_VERBOSE_PRINT
 #if defined (TEST_VERBOSE_PRINT)
 #define test_printf(...)	printf(__VA_ARGS__)
 #else
@@ -24,5 +24,6 @@ int fileio(void);
 int clonetest(void);
 int exectest(pid_t);
 int user_mutex_test(void);
+int small_io_test(void);
 
 #endif /* __TEST0_TESTS_H__ */

conts/posix/test0/main.c

@@ -23,6 +23,7 @@ void wait_pager(l4id_t partner)
 	// printf("Pager synced with us.\n");
 }
 
+
 pid_t parent_of_all;
 
 int main(int argc, char *argv[])
@@ -36,7 +37,8 @@ int main(int argc, char *argv[])
 
 	printf("\n%s: Running POSIX API tests.\n", __TASKNAME__);
 
-/*
+	small_io_test();
+
 	dirtest();
 
 	mmaptest();
@@ -56,7 +58,7 @@ int main(int argc, char *argv[])
 	if (parent_of_all == getpid()) {
 		user_mutex_test();
 	}
-*/
+
 	exectest(parent_of_all);
 
 	while (1)

conts/posix/test0/src/exectest.c

@@ -26,10 +26,9 @@ int exectest(pid_t parent_of_all)
 	int left, cnt;
 	char *argv[5];
 	char *envp[2];
-	void *buf;
 
 	memset(filename, 0, 128);
-	sprintf(filename, "/execfile%d", getpid());
+	sprintf(filename, "/home/bahadir/execfile%d", getpid());
 
 	/* First create a new file and write the executable data to that file */
 	if ((fd = open(filename, O_RDWR | O_CREAT | O_TRUNC, S_IRWXU)) < 0) {
@@ -67,6 +66,7 @@ int exectest(pid_t parent_of_all)
 		goto out_err;
 	}
 
+#if 0
 	/* Reopen */
 	if ((fd = open(filename, O_RDONLY, S_IRWXU)) < 0) {
 		err = errno;
@@ -82,7 +82,7 @@ int exectest(pid_t parent_of_all)
 		printf("First page of read and written file doesn't match\n");
 	else
 		printf("First page matches.\n");
-
+#endif
 	/* Set up some arguments */
 	argv[0] = "FIRST ARG";
 	argv[1] = "SECOND ARG";

conts/posix/test0/src/fileio.c

@@ -8,6 +8,41 @@
 #include <tests.h>
 #include <errno.h>
 
+#define PAGE_SIZE	0x1000
+
+int small_io_test(void)
+{
+	int fd1, fd2;
+	char *string = "abcdefg";
+	char strbuf[30];
+	char *path = "/text.txt";
+	fd1 = open(path, O_TRUNC | O_RDWR | O_CREAT, S_IRWXU);
+	fd2 = open(path, O_RDWR, 0);
+
+	printf("fd1: %d, fd2: %d\n", fd1, fd2);
+	perror("OPEN");
+
+	for (int i = 0; i < 4; i++) {
+		sprintf(strbuf, "%s%d", string, i);
+		printf("Writing to %s offset %x, string: %s\n",
+		       path, i*PAGE_SIZE, strbuf);
+		lseek(fd1, i*PAGE_SIZE, SEEK_SET);
+		write(fd1, strbuf, strlen(strbuf) + 1);
+	}
+	close(fd1);
+
+	memset(strbuf, 0, 30);
+	for (int i = 0; i < 4; i++) {
+		lseek(fd2, i*PAGE_SIZE, SEEK_SET);
+		read(fd2, strbuf, 30);
+		printf("Read %s, offset %x as %s\n", path, i*PAGE_SIZE, strbuf);
+	}
+
+	close(fd2);
+
+	return 0;
+}
+
 int fileio(void)
 {
 	int fd;