little cleanup vmem, parse kernel section headers

10 files changed, 45 insertions, 19 deletions

diff --git a/README.md b/README.md
index 66218c6..94fdfdc 100644
--- a/README.md
+++ b/README.md
@@ -98,8 +98,9 @@ Discontinued Features
 Todos
 -----
 
+* Mouse & KB processing in seperate task.
+* Kernel Stuff Reentrancy & Newlib Reeentrancy Struct
 * Unit Tests
-* Newlib Reeentrancy Struct
 * Ethernet driver E1000 / NS2000 & Networking stack (ipxe network drivers?)
 * Porting (ncurses, gcc, binutils, vim, apache...)
 * Posix getdents
diff --git a/fs/elf.c b/fs/elf.c
index bca527a..b4bc9d1 100644
--- a/fs/elf.c
+++ b/fs/elf.c
@@ -65,6 +65,25 @@ typedef struct {
 } 
 Elf32_Phdr;
 
+void elf_multiboot_read(multiboot_information *info)
+{
+    uint32_t num=info->syms[0];
+    uint32_t addr=info->syms[2];
+    uint32_t stridx=info->syms[3];
+
+    klog("ELF Kernel Sections:");
+    // iterate over section headers. 
+    Elf32_Shdr *shdr=addr;
+    for(int i=0;i<num;i++)
+    {
+	uint32_t nameidx=shdr[i].sh_name;
+	char *name=shdr[stridx].sh_addr+nameidx;
+	klog("section %d: %s addr: 0x%08X offset: 0x%08X size: 0x%08X",i,name,shdr[i].sh_addr,shdr[i].sh_offset,shdr[i].sh_size);
+	
+
+    }
+}
+
 // returns elf entry point
 uint32_t load_elf(char *name, uint32_t *alloc)
 {
diff --git a/fs/elf.h b/fs/elf.h
index bcbfc2d..8712c8f 100644
--- a/fs/elf.h
+++ b/fs/elf.h
@@ -1 +1,3 @@
+//https://docs.oracle.com/cd/E19455-01/806-3773/elf-2/index.html
 uint32_t load_elf(char *name, uint32_t *alloc);
+void elf_multiboot_read(multiboot_information *info);
diff --git a/kernel/kernel.c b/kernel/kernel.c
index ccc7446..ad09360 100644
--- a/kernel/kernel.c
+++ b/kernel/kernel.c
@@ -27,6 +27,7 @@
 #include "smp.h"
 
 #include "fs/fs.h"
+#include "fs/elf.h"
 #include "kmalloc.h"
 #include "driver/vesa.h"
 #include "asm_pit.h"
@@ -59,9 +60,11 @@ void kernel_main(uint32_t eax,uint32_t ebx)
     klog("Read Advanced Power Configuration Interface (ACPI) Structures ...");
     acpi_information cfg_acpi;    
     bool acpi_found=acpi_fill(&cfg_acpi);
-    fixme("try to read (legacy) multiprocessor mp strucutres (see: xxx/mp.c)");
+    fixme("Try to read (legacy) multiprocessor mp strucutres as well (see: xxx/mp.c)");
     if(!acpi_found) kpanic("We Currently rely on ACPI Structures Sorry!");
 
+    elf_multiboot_read(cfg_multiboot);
+
     // -- GDT -- //
     klog("Global Descriptor Table (GDT) init ...");
     gdt_init();
@@ -88,10 +91,7 @@ void kernel_main(uint32_t eax,uint32_t ebx)
     fixme("write convenneint management funcs as: mapCPU, mapKErnel, map USerspace..");
     fixme("move stack and guard with empty pages!");
 
-    vmem_init(0, // this is hardcoded to first 32megs anyway 
-             (uint32_t)cfg_multiboot->framebuffer_addr,
-	      cfg_acpi.local_apic_address,
-              cfg_acpi.io_apic_address);
+    vmem_init(cfg_multiboot,&cfg_acpi);
 
     struct pdirectory_struct *dir=vmem_kernel_dir();
     x86_set_page_directory(dir);
diff --git a/kernel/kernel.h b/kernel/kernel.h
index d175965..0949b68 100644
--- a/kernel/kernel.h
+++ b/kernel/kernel.h
@@ -31,7 +31,7 @@
 #ifndef FOOLOS_LOG_OFF
 #define kpanic(...) {log(FOOLOS_LOG_COLOR,__FILE__,0," \033[41;37m [KERNEL PANIC] \033[37;40m " __VA_ARGS__ ); while(1);}
 #define klog(...) log(FOOLOS_LOG_COLOR,__FILE__ ":" S2(__LINE__), 10,  __VA_ARGS__)
-#define fixme(...) log(FOOLOS_LOG_COLOR,__FILE__ ":" S2(__LINE__) "[FIXME]:" , 10, __VA_ARGS__)
+#define fixme(...) log(FOOLOS_LOG_COLOR,__FILE__ ":" S2(__LINE__) "[FIXME/TODO]:" , 10, __VA_ARGS__)
 #endif
 
 #ifdef FOOLOS_LOG_OFF
diff --git a/kernel/multiboot.c b/kernel/multiboot.c
index ada9a4e..62583b2 100644
--- a/kernel/multiboot.c
+++ b/kernel/multiboot.c
@@ -41,7 +41,7 @@ multiboot_information* multiboot_read(uint32_t eax, uint32_t ebx, bool silent)
 
     if(info->flags&&1<<5)
     {
-	klog("[4/5] ELF table: %d entries (sized %d) at 0x%08X",info->syms[0],info->syms[1],info->syms[2]);
+	klog("[4/5] ELF table: %d entries (sized %d) at 0x%08X with strings at %d",info->syms[0],info->syms[1],info->syms[2],info->syms[3]);
     }
 
     if(info->flags&&1<<6)
diff --git a/kernel/scheduler.c b/kernel/scheduler.c
index 19e670f..751cff9 100644
--- a/kernel/scheduler.c
+++ b/kernel/scheduler.c
@@ -158,8 +158,8 @@ void task_syscall_worker()
 //
 volatile uint32_t my_scheduler(uint32_t oldesp,uint32_t force_pid)
 {
-    uint32_t *apic_id=0x8000000;
-    klog("scheduler 0x%x",*apic_id); // TODO: do not log we are inisde an interrupt!!
+    uint32_t *apic_id=0x8000000; //TODO: test cpu private pages
+    //klog("scheduler 0x%x",*apic_id); // TODO: do not log we are inisde an interrupt!!
 
     // 
     static bool first=true;
@@ -329,5 +329,3 @@ void userfunc()
         task_syscall_worker();
     }
 }
-
-
diff --git a/kernel/smp.c b/kernel/smp.c
index 084f730..1b1659b 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -12,6 +12,7 @@
 #include "asm_pit.h"
 #include "asm_smp.h"
 #include "apic.h"
+#include "vesa.h"
 
 
 void smp_main()
@@ -40,7 +41,6 @@ void kernel_ap()
 
     uint32_t *cpu_mem=0x8000000; //1024 pages from here on are mapped per cpu for testing! TODO: dynamic!
     *cpu_mem=apic_id();
-    klog("%x",*cpu_mem);
     
     klog("Setup the LAPIC Timer on CPU with lapic_id=0x%x ...",apic_id());
     apic_init_timer(1);// freq 1HZ
@@ -50,7 +50,11 @@ void kernel_ap()
 
     asm_smp_unlock();
 
-    while(1)asm("hlt");
+//    cpu_mem[1]=0;
+    while(1){
+	PutString("cpu cnt: %d",10,10+(*cpu_mem)*20,0xff0000,cpu_mem[1]++);
+	asm("hlt");
+    }
 }
 
 // this will start all our application processors!
diff --git a/kernel/vmem.c b/kernel/vmem.c
index c18b0a2..b12b3b8 100644
--- a/kernel/vmem.c
+++ b/kernel/vmem.c
@@ -716,10 +716,10 @@ pdirectory* vmem_new_space_dir(pdirectory *copy_dir,bool stack_only)
     return dir;
 }
 
-void vmem_init(uint32_t kernel_blocks, uint32_t frameb_addr, uint32_t apic_ad, uint32_t ioapic_ad)
+void vmem_init(multiboot_information *cfg_multiboot, acpi_information *cfg_acpi)
 {
     fixme("do not share fb_addr with syscalls like that!");
-    fb_addr=frameb_addr;
-    apic_addr=apic_ad;
-    io_apic_addr=ioapic_ad;
+    fb_addr=cfg_multiboot->framebuffer_addr;
+    apic_addr=cfg_acpi->local_apic_address;
+    io_apic_addr=cfg_acpi->io_apic_address;
 }
diff --git a/kernel/vmem.h b/kernel/vmem.h
index d6a6fe9..6bc1394 100644
--- a/kernel/vmem.h
+++ b/kernel/vmem.h
@@ -48,10 +48,12 @@
  */
 
 #include <stdint.h>
+#include "multiboot.h"
+#include "acpi.h"
 
 struct pdirectory_struct;
 
-void vmem_init(uint32_t kernel_blocks,uint32_t fb_addr,uint32_t apic_addr, uint32_t ioapic_addr);
+void vmem_init(multiboot_information *cfg_multiboot, acpi_information *cfg_acpi);
 void vmem_free_dir(struct pdirectory_struct *dir);
 struct pdirectory_struct* vmem_new_space_dir(struct pdirectory_struct *copy_dir,bool stack_only);
 struct pdirectory_struct* vmem_kernel_dir();