Added many syscalls to get better POSIX compliance

11 files changed, 86 insertions, 14 deletions

diff --git a/src/userspace/libc/stdio/getch.c b/src/userspace/libc/stdio/getch.c
index 93d3d00..5f9655a 100644
--- a/src/userspace/libc/stdio/getch.c
+++ b/src/userspace/libc/stdio/getch.c
@@ -65,7 +65,8 @@ char shift_keymap[128] = {
 char *getch()
 {
 	// TODO: Add shift support
-	u8 scancode = syscall_scancode();
+	// TODO: Implement keyboard dev driver
+	u8 scancode = 42; //syscall_scancode();
 	if ((scancode & 0x80) == 0) { // Press
 		return keymap[scancode];
 	} else { // Release
diff --git a/src/userspace/libc/stdio/putch.c b/src/userspace/libc/stdio/putch.c
index 3bc5a2e..f87680e 100644
--- a/src/userspace/libc/stdio/putch.c
+++ b/src/userspace/libc/stdio/putch.c
@@ -2,6 +2,7 @@
 
 void putch(char ch)
 {
-	if (ch != 0)
-		syscall_putch(ch);
+	// TODO: Implement framebuffer writing
+	//if (ch != 0)
+	//syscall_putch(ch);
 }
\ No newline at end of file
diff --git a/src/userspace/libc/syscall.c b/src/userspace/libc/syscall.c
index 1741376..f6761ac 100644
--- a/src/userspace/libc/syscall.c
+++ b/src/userspace/libc/syscall.c
@@ -5,14 +5,18 @@
  */
 DEFN_SYSCALL0(halt, 0);
 
-DEFN_SYSCALL1(exec, 1, char *);
+DEFN_SYSCALL1(exit, 1, u32);
 
-DEFN_SYSCALL1(putch, 2, char *);
+DEFN_SYSCALL0(fork, 2);
 
-DEFN_SYSCALL0(scancode, 3);
+DEFN_SYSCALL4(read, 3, char *, u32, u32, char *);
 
-DEFN_SYSCALL1(malloc, 4, u32);
+DEFN_SYSCALL4(write, 4, char *, u32, u32, char *);
 
-DEFN_SYSCALL1(free, 5, u32);
+DEFN_SYSCALL1(exec, 5, char *);
 
-DEFN_SYSCALL0(pointers, 6);
\ No newline at end of file
+DEFN_SYSCALL0(get_pid, 6);
+
+DEFN_SYSCALL1(malloc, 7, u32);
+
+DEFN_SYSCALL1(free, 8, u32);
\ No newline at end of file
diff --git a/src/userspace/libc/syscall.h b/src/userspace/libc/syscall.h
index e8ab95a..262e05a 100644
--- a/src/userspace/libc/syscall.h
+++ b/src/userspace/libc/syscall.h
@@ -70,16 +70,20 @@
  */
 DECL_SYSCALL0(halt);
 
-DECL_SYSCALL1(exec, char *);
+DECL_SYSCALL1(exit, u32);
+
+DECL_SYSCALL0(fork);
+
+DECL_SYSCALL4(read, char *, u32, u32, char *);
 
-DECL_SYSCALL1(putch, char *);
+DECL_SYSCALL4(write, char *, u32, u32, char *);
 
-DECL_SYSCALL0(scancode);
+DECL_SYSCALL1(exec, char *);
+
+DECL_SYSCALL0(get_pid);
 
 DECL_SYSCALL1(malloc, u32);
 
 DECL_SYSCALL1(free, u32);
 
-DECL_SYSCALL0(pointers);
-
 #endif
\ No newline at end of file
diff --git a/src/userspace/libc/unistd.h b/src/userspace/libc/unistd.h
new file mode 100644
index 0000000..e8b97be
--- /dev/null
+++ b/src/userspace/libc/unistd.h
@@ -0,0 +1,18 @@
+#ifndef MELVIX_UNISTD_H
+#define MELVIX_UNISTD_H
+
+#include <stdint.h>
+
+u32 exec(char *path);
+
+void exit(u32 code);
+
+u32 fork();
+
+u32 get_pid();
+
+u32 sys_read(char *path, u32 offset, u32 count, char *buf);
+
+u32 sys_write(char *path, u32 offset, u32 count, char *buf);
+
+#endif
\ No newline at end of file
diff --git a/src/userspace/libc/unistd/exec.c b/src/userspace/libc/unistd/exec.c
new file mode 100644
index 0000000..fd08d57
--- /dev/null
+++ b/src/userspace/libc/unistd/exec.c
@@ -0,0 +1,7 @@
+#include <stdint.h>
+#include <syscall.h>
+
+u32 exec(char *path)
+{
+	return syscall_exec(path);
+}
\ No newline at end of file
diff --git a/src/userspace/libc/unistd/exit.c b/src/userspace/libc/unistd/exit.c
new file mode 100644
index 0000000..03b54fe
--- /dev/null
+++ b/src/userspace/libc/unistd/exit.c
@@ -0,0 +1,9 @@
+#include <stdint.h>
+#include <syscall.h>
+
+void exit(u32 code)
+{
+	syscall_exit(code);
+	while (1) {
+	};
+}
\ No newline at end of file
diff --git a/src/userspace/libc/unistd/fork.c b/src/userspace/libc/unistd/fork.c
new file mode 100644
index 0000000..6ca054a
--- /dev/null
+++ b/src/userspace/libc/unistd/fork.c
@@ -0,0 +1,7 @@
+#include <stdint.h>
+#include <syscall.h>
+
+u32 fork()
+{
+	return syscall_fork();
+}
\ No newline at end of file
diff --git a/src/userspace/libc/unistd/get_pid.c b/src/userspace/libc/unistd/get_pid.c
new file mode 100644
index 0000000..c42f460
--- /dev/null
+++ b/src/userspace/libc/unistd/get_pid.c
@@ -0,0 +1,7 @@
+#include <stdint.h>
+#include <syscall.h>
+
+u32 get_pid()
+{
+	return syscall_get_pid();
+}
\ No newline at end of file
diff --git a/src/userspace/libc/unistd/read.c b/src/userspace/libc/unistd/read.c
new file mode 100644
index 0000000..c01baa7
--- /dev/null
+++ b/src/userspace/libc/unistd/read.c
@@ -0,0 +1,7 @@
+#include <stdint.h>
+#include <syscall.h>
+
+u32 sys_read(char *path, u32 offset, u32 count, char *buf)
+{
+	return syscall_read(path, offset, count, buf);
+}
\ No newline at end of file
diff --git a/src/userspace/libc/unistd/write.c b/src/userspace/libc/unistd/write.c
new file mode 100644
index 0000000..c3eec3d
--- /dev/null
+++ b/src/userspace/libc/unistd/write.c
@@ -0,0 +1,7 @@
+#include <stdint.h>
+#include <syscall.h>
+
+u32 sys_write(char *path, u32 offset, u32 count, char *buf)
+{
+	return syscall_write(path, offset, count, buf);
+}
\ No newline at end of file