From c742be9c738c91703a7be787639cad167de3a6b1 Mon Sep 17 00:00:00 2001
From: Miguel <m.i@gmx.at>
Date: Fri, 17 Aug 2018 02:28:02 +0200
Subject: started reviving my fool os

---
 kernel/syscalls.c | 26 +++++++-------------------
 1 file changed, 7 insertions(+), 19 deletions(-)

(limited to 'kernel/syscalls.c')

diff --git a/kernel/syscalls.c b/kernel/syscalls.c
index 38cac63..31579e1 100644
--- a/kernel/syscalls.c
+++ b/kernel/syscalls.c
@@ -6,8 +6,8 @@
 #include "kernel/kernel.h"
 #include "kernel/config.h"
 #include <sys/stat.h>
-#include  <stdbool.h>
-#include  <stddef.h>
+#include <stdbool.h>
+#include <stddef.h>
 
 int syscall_unhandled(int nr)
 {
@@ -29,7 +29,6 @@ int syscall_lseek(int file,int ptr,int dir)
     panic(FOOLOS_MODULE_NAME,"unhandled syscall: lseek");
 
     return 0;
-
 }
 
 // TODO: /dev/console or /dev/tty1 - /dev/ttyN
@@ -77,14 +76,11 @@ int syscall_read(int file, char *buf, int len)
 	if(l==len)return l;
 	if(c=='\n')return l;
     }
-    
-
 }
 
 //TODO: replace with dirent!
 int syscall_readdir(const char *name,fs_dirent *dirs,int max)
 {
-
     #ifdef LOG_SYSCALLS
     log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"readdir(name=0x%08X, dirs=0x%08X,  %d)", name,dirs,max);
     #endif
@@ -95,7 +91,6 @@ int syscall_readdir(const char *name,fs_dirent *dirs,int max)
 // for non blocking io?
 int syscall_has_data_waiting(int file)
 {
-
     #ifdef LOG_SYSCALLS
     log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"has data waiting?");
     #endif
@@ -105,13 +100,10 @@ int syscall_has_data_waiting(int file)
 
 int syscall_tune(int v1,int v2, int v3)
 {
-
-
     #ifdef LOG_SYSCALLS
     log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"tuning request");
     #endif
 
-
     if(v1==0) // regular tty mode
     {
 	get_fool()->tty->set_buff=true;
@@ -127,10 +119,6 @@ int syscall_tune(int v1,int v2, int v3)
     return 0;
 }
 
-
-
-
-
 int copy_args(char **in, char **out)
 {
     log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"copy_args(0x%08x, 0x%08X)",in,out);
@@ -160,10 +148,8 @@ int copy_args(char **in, char **out)
     return count;
 }
 
-
 int syscall_execve(char *name, char **argv, char **env)
 {
-
     #ifdef LOG_SYSCALLS
     log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"execve (name=0x%08X(%s), argvs=0x%08X,  env=0x%08X)", name,name,argv,env);
     #endif
@@ -177,9 +163,9 @@ int syscall_execve(char *name, char **argv, char **env)
     copy_args(argv,argv1);
     copy_args(env,env1);
 
-
     uint32_t alloc;
     uint32_t entry_global=load_elf(name,&alloc);
+
     task_set_brk(alloc);
 
     if(!entry_global)
@@ -191,7 +177,9 @@ int syscall_execve(char *name, char **argv, char **env)
     }
 
     /* try to move this to asm */
-    //asm volatile("jmp .");
+    //    asm volatile("jmp ."); // loop forever
+    log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"returning to jump addy (0x%08X)", entry_global);
+
     asm volatile("mov $0x8fff000,%esp"); // set stack at high end of process image
 
     asm volatile ("push %0" :: "r" (argv1));
@@ -201,7 +189,7 @@ int syscall_execve(char *name, char **argv, char **env)
 
     // push addr and return to it
     asm volatile ("pushl %0"::"r"(entry_global));
-    
+
     asm volatile ("sti");
     asm volatile ("ret");
 
-- 
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