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Diffstat (limited to 'kernel')
-rw-r--r--kernel/config.h2
-rw-r--r--kernel/console.c2
-rw-r--r--kernel/kernel.c3
-rw-r--r--kernel/mem.c4
-rw-r--r--kernel/syscalls.c49
-rw-r--r--kernel/task.c2
6 files changed, 28 insertions, 34 deletions
diff --git a/kernel/config.h b/kernel/config.h
index 216641c..2e2a169 100644
--- a/kernel/config.h
+++ b/kernel/config.h
@@ -8,7 +8,7 @@
#define FOOLOS_CONFIG_H
#define FOOLOS_CONSOLE_AUTOBREAK // add newline automatically at end of line
-//#define FOOLOS_LOG_OFF // do not log anything
+#define FOOLOS_LOG_OFF // do not log anything
#define FOOLOS_CONSOLE // otherwise VESA will be used!
#define FOOLSOS_SHOW_VESAMODES
#define MEM_PRINT_MEMORYMAP
diff --git a/kernel/console.c b/kernel/console.c
index 0a208bb..9db1c0b 100644
--- a/kernel/console.c
+++ b/kernel/console.c
@@ -16,7 +16,7 @@
uint32_t console_init(){
scr_clear();
log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"init console");
- // int inode_nr=ext2_filename_to_inode(EXT2_RAM_ADDRESS,"/binfont.bin");
+//int inode_nr=ext2_filename_to_inode(EXT2_RAM_ADDRESS,"/binfont.bin");
// if(inode_nr!=-1)ext2_inode_content(EXT2_RAM_ADDRESS,inode_nr,0x8000000,0xffff); // load font;
return 0;
}
diff --git a/kernel/kernel.c b/kernel/kernel.c
index 76ae8d7..97847e6 100644
--- a/kernel/kernel.c
+++ b/kernel/kernel.c
@@ -118,7 +118,6 @@ void kernel_main(uint32_t eax,uint32_t ebx)
int_init(0x08);
- //while(1);
//
// Scan the PCI Bus
@@ -151,7 +150,7 @@ void kernel_main(uint32_t eax,uint32_t ebx)
//
// Initialize Multitasking
//
- //task_init(dir); //; this will never return!
+ task_init(dir); //; this will never return!
//
while(1);
//log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,".");
diff --git a/kernel/mem.c b/kernel/mem.c
index 72b92af..f29c34f 100644
--- a/kernel/mem.c
+++ b/kernel/mem.c
@@ -102,10 +102,11 @@ int mmap_first_free_s (uint32_t x)
void pmmngr_init_region (uint32_t base, uint32_t size)
{
- if(base<0x100000)return;
uint32_t align = base / PMMNGR_BLOCK_SIZE +1; // TODO: calc properly
uint32_t blocks = size / PMMNGR_BLOCK_SIZE -1;
+ log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"init blocks: 0x%08X 0x%08X",base,size);
+
for (; blocks>0; blocks--)
{
mmap_unset (align++);
@@ -253,6 +254,7 @@ void mem_init(uint32_t memmap,uint32_t length)
// deinitialize kernel + memory (TODO: modules)
pmmngr_deinit_region(kernel_start,((uint32_t)kernel_end-(uint32_t)kernel_start));
pmmngr_deinit_region(_mmngr_memory_map,mem_array_size*4+PMMNGR_BLOCK_SIZE);
+ pmmngr_deinit_region(0,0x700000);
log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"Usable Mem: %d (0x%X) bytes. (~%d MB)",total_mem,total_mem,total_mem/1024/1024);
log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"Currently Free 4K blocks: %d blocks.",mem_free_blocks);
diff --git a/kernel/syscalls.c b/kernel/syscalls.c
index 6d46f1a..38f7161 100644
--- a/kernel/syscalls.c
+++ b/kernel/syscalls.c
@@ -14,7 +14,7 @@
int syscall_unhandled(int nr)
{
log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"syscall: %d", nr);
- panic(FOOLOS_MODULE_NAME,"unhandled syscall");
+ panic(FOOLOS_MODULE_NAME,"unhandled syscall (generic handler)");
}
int syscall_lseek(int file,int ptr,int dir)
@@ -23,7 +23,7 @@ int syscall_lseek(int file,int ptr,int dir)
log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"lseek (file=%d, ptr=%d, dir=%d)", file,ptr,dir);
#endif
- panic(FOOLOS_MODULE_NAME,"unhandled syscall");
+ panic(FOOLOS_MODULE_NAME,"unhandled syscall: lseek");
return 0;
@@ -39,7 +39,7 @@ int syscall_write(int file, char *buf, int len)
log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"[%d] write(file=%d, buf=0x%08X, len=%d)", task_get_current_pid(),file,buf,len);
#endif
- if(file!=1&&file!=2) panic(FOOLOS_MODULE_NAME,"unhandled syscall");
+ if(file!=1&&file!=2) panic(FOOLOS_MODULE_NAME,"unhandled syscall: write (only stdout and stderr)");
//stderr and stdout go to console
for(int i=0;i<len;i++)
@@ -59,8 +59,9 @@ int syscall_read(int file, char *buf, int len)
log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"read(file=%d, buf=0x%08X, len=%d)", file,buf,len);
#endif
+
// stdin TODO: other descroptiors!
- if(file!=0) panic(FOOLOS_MODULE_NAME,"unhandled syscall");
+ if(file!=0) panic(FOOLOS_MODULE_NAME,"unhandled syscall: read (only stdin)");
{
if(eof)
{
@@ -149,28 +150,18 @@ int copy_args(char **in, char **out)
return count;
}
-
-int *entry_global=1;
-char **argv_global=10;
-char **env_global=300;
-char **argv=0x8000000;
-char **env=0x8000000+300;
-
-
int syscall_execve(char *name, char **argv1, char **env1)
{
#ifdef LOG_SYSCALLS
log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"execve (name=0x%08X(%s), argvs=0x%08X, env=0x%08X)", name,name,argv1,env1);
#endif
- copy_args(argv1,argv_global);
- copy_args(env1,env_global);
-
uint32_t alloc;
- *entry_global=load_elf(name,&alloc);
+ uint32_t entry_global=load_elf(name,&alloc);
+
task_set_brk(alloc);
- if(!*entry_global)
+ if(!entry_global)
{
#ifdef LOG_SYSCALLS
log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"execve: bailing out!");
@@ -181,18 +172,14 @@ int syscall_execve(char *name, char **argv1, char **env1)
/* try to move this to asm */
//asm volatile("jmp .");
asm volatile("mov $0x8fff000,%esp"); // set stack at high end of process image
+ int arg_count=0;
- int arg_count=copy_args(argv_global,argv);
- copy_args(env_global,env);
-
- log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"argc: %d" ,arg_count);
-
- asm volatile ("push %0" :: "r" (argv));
+ asm volatile ("push %0" :: "r" (argv1));
asm volatile ("push %0" :: "r" (arg_count));
- asm volatile ("push %0" :: "r" (env));
+ asm volatile ("push %0" :: "r" (env1));
// push addr and return to it
- asm volatile ("push %0"::"r"(*entry_global));
+ asm volatile ("pushl %0"::"r"(entry_global));
asm volatile ("sti");
asm volatile ("ret");
@@ -206,7 +193,7 @@ int syscall_open(char *name, int flags, int mode)
#ifdef LOG_SYSCALLS
log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"open (name=0x%08X(\"%s\"), flags=%d, mode=%d)",name, name,flags,mode);
#endif
- panic(FOOLOS_MODULE_NAME,"unhandled syscall");
+ panic(FOOLOS_MODULE_NAME,"unhandled syscall: open");
}
@@ -220,7 +207,7 @@ int syscall_close(int file,int none1,int none2)
#endif
if(file!=0&&file!=1&&file!=2)
- panic(FOOLOS_MODULE_NAME,"unhandled syscall");
+ panic(FOOLOS_MODULE_NAME,"unhandled syscall: close");
return -1;
}
@@ -234,18 +221,22 @@ int syscall_isatty(int file,int none1,int none2)
return 1;
}
+uint32_t fuckalloc=0x8500000;
// TODO: per process basis!
uint32_t syscall_sbrk(int incr, int none1, int none2)
{
uint32_t alloc=task_get_brk();
- uint32_t oldalloc=alloc;
- alloc+=incr;
+
+ uint32_t oldalloc=fuckalloc;
+ fuckalloc+=incr;
+
task_set_brk(alloc);
#ifdef LOG_SYSCALLS
log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"sbrk (incr=%d) = 0x%08X", incr,oldalloc);
#endif
+
return oldalloc;
}
diff --git a/kernel/task.c b/kernel/task.c
index a2a2ab8..1474a64 100644
--- a/kernel/task.c
+++ b/kernel/task.c
@@ -85,6 +85,7 @@ volatile uint32_t task_switch_next(uint32_t oldesp)
timer_tick();
+
// check if multitasking has been started
if(current_task<0)return oldesp;
@@ -160,6 +161,7 @@ volatile void task_init(pdirectory *dir)
current_task=0;
syscall_execve("/bin/init",argv_init,env_init);
+ //syscall_execve("/bin/foolshell",argv_init,env_init);
// syscall_execve("/bin/tput",argv,env);
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-09 01:45:30 +0000