feat: implemented errno, strtol. Started ustar. Reformatted headers and

code. Added some self-tests. Started prepwork for vfs.

include/elf.h

@@ -68,6 +68,6 @@ struct elf32_symtab_entry {
     uint8_t st_info;
     uint8_t st_other;
     uint16_t st_shndx;
-};
+} packed;
 
 #endif //NEW_KERNEL_ELF_H

include/errno.h

@@ -5,4 +5,41 @@
 #ifndef NEW_KERNEL_ERRNO_H
 #define NEW_KERNEL_ERRNO_H
 
+extern int errno;
+
+#define EPERM   1  /* Operation not permitted */
+#define ENOENT  2  /* No such file or directory */
+#define ESRCH   3  /* No such process */
+#define EINTR   4  /* Interrupted system call */
+#define EIO     5  /* I/O error */
+#define ENXIO   6  /* No such device or address */
+#define E2BIG   7  /* Argument list too long */
+#define ENOEXEC 8  /* Exec format error */
+#define EBADF   9  /* Bad file number */
+#define ECHILD  10 /* No child processes */
+#define EAGAIN  11 /* Try again */
+#define ENOMEM  12 /* Out of memory */
+#define EACCES  13 /* Permission denied */
+#define EFAULT  14 /* Bad address */
+#define ENOTBLK 15 /* Block device required */
+#define EBUSY   16 /* Device or resource busy */
+#define EEXIST  17 /* File exists */
+#define EXDEV   18 /* Cross-device link */
+#define ENODEV  19 /* No such device */
+#define ENOTDIR 20 /* Not a directory */
+#define EISDIR  21 /* Is a directory */
+#define EINVAL  22 /* Invalid argument */
+#define ENFILE  23 /* File table overflow */
+#define EMFILE  24 /* Too many open files */
+#define ENOTTY  25 /* Not a typewriter */
+#define ETXTBSY 26 /* Text file busy */
+#define EFBIG   27 /* File too large */
+#define ENOSPC  28 /* No space left on device */
+#define ESPIPE  29 /* Illegal seek */
+#define EROFS   30 /* Read-only file system */
+#define EMLINK  31 /* Too many links */
+#define EPIPE   32 /* Broken pipe */
+#define EDOM    33 /* Math argument out of domain of func */
+#define ERANGE  34 /* Math result not representable */
+
 #endif //NEW_KERNEL_ERRNO_H

include/myke/command.h

@@ -9,6 +9,6 @@
 
 void store_bootloader_info(multiboot_info_t *multiboot_info);
 
-void main_loop(void* data);
+void main_loop(void *data);
 
 #endif //NEW_KERNEL_COMMAND_H

include/myke/cpu/cpu.h

@@ -4,6 +4,7 @@
 
 #ifndef NEW_KERNEL_CPU_H
 #define NEW_KERNEL_CPU_H
+
 #include <sys/types.h>
 
 typedef struct {

include/myke/cpu/cpuidx.h

@@ -36,7 +36,7 @@ typedef struct {
     bool xsave: 1;
     bool osxsave: 1;
     bool avx: 1;
-} cpu_features_ecx ;
+} cpu_features_ecx;
 
 typedef struct {
     bool fpu: 1;
@@ -72,7 +72,7 @@ typedef struct {
     bool ia64: 1;
     bool pbe: 1;
 
-} cpu_features_edx ;
+} cpu_features_edx;
 
 enum cpu_features {
     CPUID_FEAT_ECX_SSE3 = 1 << 0,

include/myke/cpu/idt.h

@@ -5,6 +5,7 @@
 
 #ifndef MY_KERNEL_IDT_H
 #define MY_KERNEL_IDT_H
+
 #include <myke/attributes.h>
 
 #define KERNEL_CS 0x08

include/myke/cpu/isr.h

@@ -126,7 +126,7 @@ extern void isr128();
 #define IRQ14 46
 #define IRQ15 47
 
-typedef void (*isr_t)(isr_registers_t*);
+typedef void (*isr_t)(isr_registers_t *);
 
 void register_interrupt_handler(uint8_t n, isr_t handler);
 

include/myke/cpu/syscall_handler.h

@@ -4,6 +4,7 @@
 
 #ifndef NEW_KERNEL_SYSCALL_HANDLER_H
 #define NEW_KERNEL_SYSCALL_HANDLER_H
+
 #include <myke/cpu/cpu.h>
 
 void syscall_handle(isr_registers_t *registers);

include/myke/debug/debug.h

@@ -8,9 +8,17 @@
 #include <stdbool.h>
 
 #ifdef DEBUG_INIT
+
 #include <multiboot.h>
 
 void debug_store_info(struct multiboot_info *info);
+
+#endif
+
+#ifdef ENABLE_SELF_TEST
+
+void self_test();
+
 #endif
 
 void debug_backtrace(bool do_sync);

include/myke/driver.h

@@ -4,6 +4,7 @@
 
 #ifndef NEW_KERNEL_DRIVER_H
 #define NEW_KERNEL_DRIVER_H
+
 #include <myke/attributes.h>
 #include <myke/preprocessor_format_zero.h>
 
@@ -12,8 +13,8 @@
 #endif
 #define DRIVER_CAT(a, b) DRIVER_DUMMY() a ## _ ## b
 #define DRIVER_DUMMY()
-#define SECT_NAME_(a,b) "." #a "." #b
-#define SECT_NAME(a,b) SECT_NAME_(a, b)
+#define SECT_NAME_(a, b) "." #a "." #b
+#define SECT_NAME(a, b) SECT_NAME_(a, b)
 
 #define GENERIC_DRIVER(drivername, order) \
     static struct drivername DRIVER_CAT(drivername, counter) \

include/myke/fs/blockdev.h

@@ -5,6 +5,7 @@
 #ifndef NEW_KERNEL_BLOCKDEV_H
 #define NEW_KERNEL_BLOCKDEV_H
 
+#include <stdbool.h>
 #include <sys/types.h>
 #include <myke/driver.h>
 
@@ -24,18 +25,19 @@
 #define BLOCK_DEV_REGISTER_FULL 1
 
 
-typedef struct block_device block_device;
+typedef struct block_device block_device_t;
 
-typedef uint8_t (*block_device_driver_check_device)(const block_device *device, uint8_t *first_sector);
+typedef uint8_t (*block_device_driver_check_device)(const block_device_t *device, uint8_t *first_sector);
 
-typedef uint8_t (*block_device_driver_free)(const block_device *device);
+typedef uint8_t (*block_device_driver_free)(const block_device_t *device);
 
-typedef uint8_t (*block_device_access)(const block_device *device, uint8_t direction, uint32_t lba, uint8_t sectors, void *target);
+typedef uint8_t (*block_device_access)(const block_device_t *device, uint8_t direction, uint32_t lba, uint8_t sectors,
+                                       void *target);
 
 struct block_dev_driver {
     char name[16];
     struct {
-        uint8_t root_only: 1;
+        uint8_t partitioning: 1;
     } flags;
     block_device_driver_check_device check_device;
     block_device_driver_free free_device;
@@ -43,7 +45,7 @@ struct block_dev_driver {
 
 #define BLOCK_DEV_DRIVER(order) GENERIC_DRIVER(block_dev_driver, order)
 
-typedef struct block_device {
+struct block_device {
     struct {
         uint8_t present: 1;
         uint8_t scanned: 1;
@@ -58,14 +60,16 @@ typedef struct block_device {
     struct block_dev_driver *driver;
     void *device_info; // pointer to driver defined structure
     // todo device info
-} block_device;
+};
 
-uint8_t block_dev_register(block_device *device);
+uint8_t block_dev_register(block_device_t *device);
 
-void block_dev_free(block_device *device);
+void block_dev_free(block_device_t *device);
 
 void block_dev_start_task();
 
 void block_dev_print_info();
 
+bool block_dev_mount(char *identifier, char *driver);
+
 #endif //NEW_KERNEL_BLOCKDEV_H

include/myke/libk/kprint.h

@@ -15,7 +15,7 @@ void kprint_register(kprint_handler);
 
 void kprint(const char *msg);
 
-void kprint_sync(const char* msg);
+void kprint_sync(const char *msg);
 
 void kprint_init();
 

include/myke/libk/libk.h

@@ -4,11 +4,12 @@
 
 #ifndef NEW_KERNEL_LIBK_H
 #define NEW_KERNEL_LIBK_H
+
 #include <myke/attributes.h>
 #include <stdbool.h>
 
-extern void* _kernel_start;
-extern void* _kernel_end;
+extern void *_kernel_start;
+extern void *_kernel_end;
 #define kernel_start ((uint32_t)(&_kernel_start))
 #define kernel_end ((uint32_t)(&_kernel_end))
 

include/myke/libk/syscall.h

@@ -4,6 +4,7 @@
 
 #ifndef NEW_KERNEL_SYSCALL_H
 #define NEW_KERNEL_SYSCALL_H
+
 #include <sys/types.h>
 #include <myke/attributes.h>
 

include/myke/mem/malloc.h

@@ -16,7 +16,9 @@ void *calloc(size_t, size_t);
 void free(void *);
 
 #ifndef INCLUDE_STDLIB
+
 void print_malloc_info();
+
 #endif
 
 #endif //NEW_KERNEL_MALLOC_H

include/myke/mem/pmm.h

@@ -4,13 +4,16 @@
 
 #ifndef NEW_KERNEL_PMM_H
 #define NEW_KERNEL_PMM_H
+
 #include <sys/types.h>
 
 // 4k blocks
 #define PAGE_SIZE 4096
 
-void pmm_init(void* start_addr, size_t size);
+void pmm_init(void *start_addr, size_t size);
+
 void *pmm_get_pages(uint32_t num_pages);
-void pmm_free_pages(void* page, uint32_t num_pages);
+
+void pmm_free_pages(void *page, uint32_t num_pages);
 
 #endif //NEW_KERNEL_PMM_H

include/myke/util/power.h

@@ -4,6 +4,7 @@
 
 #ifndef NEW_KERNEL_POWER_H
 #define NEW_KERNEL_POWER_H
+
 #include <myke/attributes.h>
 
 void noreturn power_shutdown();

include/stdlib.h

@@ -33,4 +33,6 @@ long long llabs(long long val);
 
 void qsort(void *base, size_t num, size_t size, int (*compar)(const void *, const void *));
 
+long strtol(const char *nptr, char **endptr, int base);
+
 #endif //NEW_KERNEL_STDLIB_H

include/string.h

@@ -11,7 +11,7 @@ int memcpy(void *dst, const void *src, size_t amount);
 
 int memset(void *dst, int data, size_t amount);
 
-int strcpy(char *dst, char *src);
+int strcpy(char *dst, const char *src);
 
 size_t strlen(const char *str);
 

include/sys/param.h

@@ -5,7 +5,7 @@
 #ifndef NEW_KERNEL_PARAM_H
 #define NEW_KERNEL_PARAM_H
 
-#define MIN(a,b) (((a)<(b))?(a):(b))
-#define MAX(a,b) (((a)>(b))?(a):(b))
+#define MIN(a, b) (((a)<(b))?(a):(b))
+#define MAX(a, b) (((a)>(b))?(a):(b))
 
 #endif //NEW_KERNEL_PARAM_H

include/unistd.h

@@ -4,11 +4,14 @@
 
 #ifndef NEW_KERNEL_UNISTD_H
 #define NEW_KERNEL_UNISTD_H
+
 #include <sys/types.h>
 
-int execv(const char*, char* const[]);
-int execve(const char*, char* const[], char* const[]);
-int execvp(const char*, char* const[]);
+int execv(const char *, char *const[]);
+
+int execve(const char *, char *const[], char *const[]);
+
+int execvp(const char *, char *const[]);
 
 pid_t fork(void);