#include <sys/_null.h>
#include <sys/types.h>
#include <sys/elf.h>
#include <sys/gdt.h>
#include <ubixos/exec.h>
#include <ubixos/ld.h>
#include <ubixos/kpanic.h>
#include <ubixos/endtask.h>
#include <vmm/vmm.h>
#include <lib/kmalloc.h>
#include <lib/kprintf.h>
#include <vfs/file.h>
#include <assert.h>
#include <string.h>
#include <sys/descrip.h>

Include dependency graph for i386_exec.c:

Macros
#define	ARGV_PAGE 0x100

#define	AT_BASE 7 /* Interpreter's base address. */

#define	AT_ENTRY 9 /* Where interpreter should transfer control. */

#define	AT_EXECFD 2 /* File descriptor of program to load. */

#define	AT_FLAGS 8 /* Flags (unused for i386). */

#define	AT_IGNORE 1 /* Ignored entry. */

#define	AT_NULL 0 /* Terminates the vector. */

#define	AT_PAGESZ 6 /* Page size in bytes. */

#define	AT_PHDR 3 /* Program header of program already loaded. */

#define	AT_PHENT 4 /* Size of each program header entry. */

#define	AT_PHNUM 5 /* Number of program header entries. */

#define	AUXARGS_ENTRY(pos, id, val) {pos = id;pos++; pos = val;pos++;}

#define	ELF_AUX 0x100

#define	ENOEXEC -1

#define	ENVP_PAGE 0x100

#define	STACK_PAD 0x1000

Functions
void	execFile (char file, char argv, char *envp, int console)

uint32_t	execThread (void(tproc)(void), uint32_t stack, char arg)

int	sys_exec (struct thread td, char file, char argv, char envp)

Macro Definition Documentation

◆ ARGV_PAGE

#define ARGV_PAGE 0x100

Definition at line 46 of file i386_exec.c.

◆ AT_BASE

#define AT_BASE 7 /* Interpreter's base address. */

Definition at line 59 of file i386_exec.c.

◆ AT_ENTRY

#define AT_ENTRY 9 /* Where interpreter should transfer control. */

Definition at line 61 of file i386_exec.c.

◆ AT_EXECFD

#define AT_EXECFD 2 /* File descriptor of program to load. */

Definition at line 54 of file i386_exec.c.

◆ AT_FLAGS

#define AT_FLAGS 8 /* Flags (unused for i386). */

Definition at line 60 of file i386_exec.c.

◆ AT_IGNORE

#define AT_IGNORE 1 /* Ignored entry. */

Definition at line 53 of file i386_exec.c.

◆ AT_NULL

#define AT_NULL 0 /* Terminates the vector. */

Definition at line 52 of file i386_exec.c.

◆ AT_PAGESZ

#define AT_PAGESZ 6 /* Page size in bytes. */

Definition at line 58 of file i386_exec.c.

◆ AT_PHDR

#define AT_PHDR 3 /* Program header of program already loaded. */

Definition at line 55 of file i386_exec.c.

◆ AT_PHENT

#define AT_PHENT 4 /* Size of each program header entry. */

Definition at line 56 of file i386_exec.c.

◆ AT_PHNUM

#define AT_PHNUM 5 /* Number of program header entries. */

Definition at line 57 of file i386_exec.c.

◆ AUXARGS_ENTRY

#define AUXARGS_ENTRY	(	pos,
		id,
		val
	)	{pos = id;pos++; pos = val;pos++;}

Definition at line 63 of file i386_exec.c.

◆ ELF_AUX

#define ELF_AUX 0x100

Definition at line 47 of file i386_exec.c.

◆ ENOEXEC

#define ENOEXEC -1

Definition at line 50 of file i386_exec.c.

◆ ENVP_PAGE

#define ENVP_PAGE 0x100

Definition at line 45 of file i386_exec.c.

◆ STACK_PAD

#define STACK_PAD 0x1000

Definition at line 48 of file i386_exec.c.

Function Documentation

◆ execFile()

void execFile	(	char *	file,
		char **	argv,
		char **	envp,
		int	console
	)

Definition at line 244 of file i386_exec.c.

◆ execThread()

uint32_t execThread	(	void(*)(void)	tproc,
		uint32_t	stack,
		char *	arg
	)

Definition at line 148 of file i386_exec.c.

References assert, tssStruct::back_link, tssStruct::cr3, tssStruct::cs, tssStruct::ds, tssStruct::ebp, tssStruct::edi, tssStruct::eflags, tssStruct::eip, tssStruct::es, tssStruct::esi, tssStruct::esp, tssStruct::esp0, tssStruct::esp1, tssStruct::esp2, taskStruct::files, tssStruct::fs, tssStruct::gs, taskStruct::id, tssStruct::io_map, kernelPageDirectory, kpanic(), tssStruct::ldt, taskStruct::oInfo, PAGE_SIZE, READY, sched_setStatus(), schedNewTask(), tssStruct::ss, tssStruct::ss0, tssStruct::ss1, tssStruct::ss2, tssStruct::trace_bitmap, taskStruct::tss, vmm_getFreeKernelPage(), and osInfo::vmStart.

Here is the call graph for this function:

◆ sys_exec()

int sys_exec	(	struct thread *	td,
		char *	file,
		char **	argv,
		char **	envp
	)

Clean the virtual of COW pages left over from the fork

Definition at line 491 of file i386_exec.c.

Macros

Functions