From c15925a24efe14f437d8a2699500241a58fdc8f9 Mon Sep 17 00:00:00 2001
From: Miguel <m.i@gmx.at>
Date: Fri, 17 Aug 2018 21:41:21 +0200
Subject: cleanup and working on fifo pipes

---
 syscalls.c | 118 +++++++++++++------------------------------------------------
 1 file changed, 24 insertions(+), 94 deletions(-)

(limited to 'syscalls.c')

diff --git a/syscalls.c b/syscalls.c
index c4bd549..f2978cc 100644
--- a/syscalls.c
+++ b/syscalls.c
@@ -12,117 +12,49 @@ typedef struct fs_dirent_struct
     char	name[256];
 }fs_dirent;
 
-//fool-os syscalls
-#define SYSCALL_READDIR 63
-#define SYSCALL_HAS_DATA 80
-#define SYSCALL_TUNE 81
-
-//syscalls required by newlib
-#define SYSCALL_EXIT 60
-#define SYSCALL_WRITE 61
-#define SYSCALL_READ 62
-#define SYSCALL_EXECVE 64
-#define SYSCALL_OPEN 65
-#define SYSCALL_CLOSE 66
-#define SYSCALL_FSTAT 67
-#define SYSCALL_ISATTY 68
-#define SYSCALL_LSEEK 69
-#define SYSCALL_SBRK 70
-#define SYSCALL_STAT 74
-#define SYSCALL_LSTAT 79
-
-// stubs only so far!
+#define SYSCALL_EXIT         60
+#define SYSCALL_WRITE        61
+#define SYSCALL_READ         62
+#define SYSCALL_READDIR      63 // fool-os-special
+#define SYSCALL_EXECVE       64
+#define SYSCALL_OPEN         65
+#define SYSCALL_CLOSE        66
+#define SYSCALL_FSTAT        67
+#define SYSCALL_ISATTY       68
+#define SYSCALL_LSEEK        69
+#define SYSCALL_SBRK         70
 #define SYSCALL_GETTIMEOFDAY 71
-#define SYSCALL_FORK 72
-#define SYSCALL_KILL 73
-#define SYSCALL_LINK 73
-#define SYSCALL_TIMES 75
-#define SYSCALL_UNLINK 76
-#define SYSCALL_WAIT 77
-#define SYSCALL_GETPID 78
-
-/*
-int syscall_execve(char *name, char **argv, char **env);
-int syscall_write(int file, char *buf, int len);
-
-int syscall_readdir(const char *name,struct fs_dirent *dirs,int max);
-
-int syscall_exit(int ret, int none1, int none2);
-int syscall_open(char *name, int flags, int len);
-int syscall_read(int file, char *buf, int len);
-int syscall_close(int file,int none1,int none2);
-int syscall_fstat(int file, struct stat *st,int none);
-int syscall_isatty(int file,int none1,int none2);  
-int syscall_lseek(int file,int ptr,int dir); 
-int syscall_stat(char *file, struct stat *st);
-int syscall_sbrk(int incr, int none1, int none2);
-//
-int syscall_gettimeofday(struct timeval *tv, struct timezone *tz);
-int syscall_fork(void);
-int syscall_getpid(void);
-int syscall_kill(int pid, int sig);
-int syscall_link(char *old, char *ne);
-int syscall_times(struct tms *buf);
-int syscall_unlink(char *name);
-int syscall_wait(int *status);
-//
-int syscall_unhandled(int nr);
-*/
+#define SYSCALL_FORK         72
+#define SYSCALL_KILL         73
+#define SYSCALL_STAT         74
+#define SYSCALL_TIMES        75
+#define SYSCALL_UNLINK       76
+#define SYSCALL_WAIT         77
+#define SYSCALL_GETPID       78
+#define SYSCALL_LSTAT        79
+#define SYSCALL_HAS_DATA     80 // fool-os-special
+#define SYSCALL_TUNE         81 // fool-os-special
+#define SYSCALL_LINK         82
 
 extern char **environ;
 //struct _reent *_impure_ptr;
 
-// generic syscall interface!
-/*int volatile  __attribute__ ((noinline))  syscall(int call, int p1, int p2, int p3)
-{
-	int ebx; // persist over func call( a,c,d are scratch)
-	int ret; // will hold return val
-
-        asm("mov %%ebx, %0": "=b" (ebx));
-
-//	asm("pusha");
-
-	// select syscall
-	asm("mov %0, %%eax"::"m"(call));  
-
-	// pass params
-	asm("mov %0,%%edx"::"m"(p1));
-	asm("mov %0,%%ecx"::"m"(p2));
-	asm("mov %0,%%ebx"::"m"(p3));
-
-	// interrrupt
-	asm("int $0x80");
-
-	// get return value
-        asm("mov %%ebx, %0": "=b" (ret));
-
-	// restore
-	asm("mov %0,%%ebx"::"m"(ebx));
-
-//	asm("popa");
-
-	return ret;
-}
-*/
-
 // fool os custom
-int readdir(const char *name,fs_dirent  *dirs,int max)
+int readdir(const char *name,fs_dirent *dirs,int max)
 {
-
     return syscall(SYSCALL_READDIR,name,dirs,max);
 }
 
 int has_data_waiting()
 {
-
     return syscall(SYSCALL_HAS_DATA,0,0,0);
 }
 
 int fool_tune(int v1, int v2, int v3)
 {
-
     return syscall(SYSCALL_TUNE,v1,v2,v3);
 }
+//
 
 void _exit(int ret)
 {
@@ -134,7 +66,6 @@ void _exit2(int ret,char **environ)
     return syscall(SYSCALL_EXIT,ret,environ,0);
 }
 
-//required by newlibc
 int _close(int file) 
 {
     return syscall(SYSCALL_CLOSE,file,0,0);
@@ -152,7 +83,6 @@ int _lseek(int file, int ptr, int dir)
 
 int _read(int file, char *ptr, int len)
 {
-
     return syscall(SYSCALL_READ,file,ptr,len);
 }
 
-- 
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