From 0e402637492f34a4d0e1302fbe34344e19bc4813 Mon Sep 17 00:00:00 2001
From: Michal Idziorek <m.i@gmx.at>
Date: Thu, 27 Nov 2014 00:29:45 +0100
Subject: Progs at vmem=0x8048000 and Improved Console Ouput

---
 kernel/syscalls.c | 40 +++++++++++++++++++++++++---------------
 1 file changed, 25 insertions(+), 15 deletions(-)

(limited to 'kernel/syscalls.c')

diff --git a/kernel/syscalls.c b/kernel/syscalls.c
index 5939cff..765316b 100644
--- a/kernel/syscalls.c
+++ b/kernel/syscalls.c
@@ -106,7 +106,7 @@ int syscall_write(int file, char *buf, int len)
     for(int i=0;i<len;i++)
     {
 	//PutConsoleChar(buf[i],0b1111111111000000);
-	console_put_char(buf[i]);
+	console_put_char_green(buf[i]);
     }
     return len;
 }
@@ -152,7 +152,7 @@ int syscall_read(int file, char *buf, int len)
 		    *buf=c;
 		    buf++;
 		    l++;
-		    if(c!=0x04)console_put_char_red(c);
+		    if(c!=0x04)console_put_char_white(c);
 		    if(c=='\n')return l;
 		    if(c==0x04)
 		    {
@@ -190,7 +190,7 @@ int syscall_execve(char *name, char **argv, char **env)
     int inode_nr=ext2_filename_to_inode(EXT2_RAM_ADDRESS,name);
     if(inode_nr<1)return -1;
 
-
+/*
     char arg1[100];
     char arg2[100];
     char arg3[100];
@@ -257,15 +257,19 @@ int syscall_execve(char *name, char **argv, char **env)
     }
     
 
-
+*/
     //TODO: load ELF binary and move this to own compilation unit
     
     //load binary
+    uint32_t vaddr=0x08048000;
+
+    log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"loading");
     ext2_check(EXT2_RAM_ADDRESS);
-    ext2_inode_content(EXT2_RAM_ADDRESS,inode_nr,0x800000,0x100000);
+    ext2_inode_content(EXT2_RAM_ADDRESS,inode_nr,vaddr,0x100000); // load 1mb;
+    log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"ELF File loaded to final destination.");
 
     Elf32_Ehdr *elf;
-    elf=0x800000;
+    elf=vaddr;
 
     if(elf->e_ident[0]!=0x7f||elf->e_ident[1]!='E'||elf->e_ident[2]!='L'||elf->e_ident[3]!='F')
 	panic(FOOLOS_MODULE_NAME,"ELF mismatch!?");
@@ -300,7 +304,7 @@ int syscall_execve(char *name, char **argv, char **env)
     // iterate over section headers
     for(int phidx=0;phidx<elf->e_phnum;phidx++)
     {	
-	Elf32_Phdr *phdr=0x800000+elf->e_phoff+phidx*elf->e_phentsize;
+	Elf32_Phdr *phdr=vaddr+elf->e_phoff+phidx*elf->e_phentsize;
 
 	if(phidx==0)
 	{
@@ -325,7 +329,7 @@ int syscall_execve(char *name, char **argv, char **env)
 	    log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"bss: 0x%08X-0x%08X",phdr->p_vaddr+phdr->p_filesz,phdr->p_vaddr+phdr->p_memsz);
 
 	    // let's copy the rw- data block
-	    uint32_t *data=0x800000+phdr->p_offset;
+	    uint32_t *data=vaddr+phdr->p_offset;
 	    for(uint32_t *addr=phdr->p_vaddr; addr<=phdr->p_vaddr+phdr->p_filesz; addr++)
 	    {
 		*addr=*data;
@@ -344,18 +348,24 @@ int syscall_execve(char *name, char **argv, char **env)
 
     }
 
-    
+ 
     int i=0;
     do{
-        log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"envvar %d : 0x%08X : %s" ,i,environ[i],environ[i]);
+        log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"envr %d : 0x%08X : %s" ,i,env[i],env[i]);
 	i++;
-    }while(environ[i]!=NULL);
-    
+    }while(env[i]!=NULL);
 
-    asm("mov $0xf00000,%esp"); // set stack pointer
-    asm("push %0" :: "r" (argvcopy));
+    int argc=0;
+    do{
+        log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"arg %d : 0x%08X : %s" ,argc,argv[argc],argv[argc]);
+	argc++;
+    }while(argv[argc]!=NULL);
+
+    asm("mov $0x08248000,%esp"); // set stack pointer // 2 mb over start. 
+    
+    asm("push %0" :: "r" (argv));
     asm("push %0" :: "r" (argc));
-    asm("push %0" :: "r" (environ));
+    asm("push %0" :: "r" (env));
 
     // push addr and return to it
     asm("push %0"::"r"(elf->e_entry));
-- 
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