perso
/
cos2000v2
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

feat: bascule vers le format de noyau linux afin de bénéficier des outils de chargement qui vont bien

This commit is contained in:
Nicolas Hordé 2018-12-27 14:24:47 +01:00
parent e3d708850d
commit 620f63d101
27 changed files with 684 additions and 752 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
API.md
View File

@ -9,6 +9,18 @@ All fonctions in the "libsys" library.
------
`u32 exit(u32 resultcode);`
*Description:End a task for user or kernel domain*
* syscall id : **5**
* arguments : **1**
* * argument 1 : **u32 resultcode** *Code result of the execution*
* results : **u32**
* dump of register cpu: **no**
------
`u32 getticks(void);`
*Description:Return the internal value of the timer*
@ -20,6 +32,17 @@ All fonctions in the "libsys" library.
------
`u8 waitkey(void);`
*Description:Wait for user to press a key and return the ascii code pressed*
* syscall id : **1**
* arguments : **0**
* results : **u8**
* dump of register cpu: **no**
------
`u32 testapi(u32 arg1, u32 arg2, u32 arg3);`
*Description:Simple function to test if SYSCALL API is correctly running*
@ -32,29 +55,6 @@ All fonctions in the "libsys" library.
* results : **u32**
* dump of register cpu: **yes**
------
`u8 waitkey(void);`
*Description:Wait for user to press a key and return the ascii code pressed*
* syscall id : **1**
* arguments : **0**
* results : **u8**
* dump of register cpu: **no**
------
`u32 exit(u32 resultcode);`
*Description:End a task for user or kernel domain*
* syscall id : **5**
* arguments : **1**
* * argument 1 : **u32 resultcode** *Code result of the execution*
* results : **u32**
* dump of register cpu: **no**
### LIBVIDEO

5
README.md
View File

@ -228,8 +228,10 @@ Pour l'instant quelques commandes seulement sont disponibles:
#### En cours
* correction de bogues - stabilisation du projet
* correction de bogues - libération des ressources après destruction processus,
* liste d'API automatiquement mise à jour avec intégration de librairies & header,
* gestion du système de fichier CRAMFS,
* lancement du noyau par kernel et non par multiboot afin de bénéficier de initrd,
#### A faire
@ -247,6 +249,7 @@ Pour l'instant quelques commandes seulement sont disponibles:
Des fichiers sources utilisés par COS2000 sont sous d'autres licences, parmis ceux-ci figurent :
* `include/queues.h` sous licence Berkeley Software Distribution License
* `tools/*` sous licence GPL V2.0, fichiers issus du noyau Linux
#### Historique du projet
* Version 2.2fr - C en mode protégé Reprise du projet

1
include/memory.h
View File

@ -100,6 +100,7 @@ typedef TAILQ_HEAD(page_s, page) page_t;
typedef TAILQ_HEAD(vrange_s, vrange) vrange_t;
void virtual_pd_show(pd *dst);
void panic(u8 * string);
void memset(void *dst, u8 val, u32 count, u32 size);
void memcpy(void *src, void *dst, u32 count, u32 size);

13
include/multiboot.h
View File

@ -1,13 +0,0 @@
/*******************************************************************************/
/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
/* */
#include "types.h"
#include "multiboot2.h"
u32 getgrubinfo(u8 type);
u8 *getgrubinfo_cmdline(void);
u32 getgrubinfo_ram(void);
struct multiboot_tag_mmap *getgrubinfo_mem(void);
struct multiboot_tag_framebuffer *getgrubinfo_fb(void);
void getgrubinfo_all(void);
void initmultiboot(const u32 addr);

391
include/multiboot2.h
View File

@ -1,391 +0,0 @@
/*******************************************************************************/
/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
/* */
#ifndef MULTIBOOT
# define MULTIBOOT
/* How many bytes from the start of the file we search for the header. */
# define MULTIBOOT_SEARCH 32768
# define MULTIBOOT_HEADER_ALIGN 8
/* The magic field should contain this. */
# define MULTIBOOT2_HEADER_MAGIC 0xe85250d6
/* This should be in %eax. */
# define MULTIBOOT2_BOOTLOADER_MAGIC 0x36d76289
/* Alignment of multiboot modules. */
# define MULTIBOOT_MOD_ALIGN 0x00001000
/* Alignment of the multiboot info structure. */
# define MULTIBOOT_INFO_ALIGN 0x00000008
/* Flags set in the 'flags' member of the multiboot header. */
# define MULTIBOOT_TAG_ALIGN 8
# define MULTIBOOT_TAG_TYPE_END 0
# define MULTIBOOT_TAG_TYPE_CMDLINE 1
# define MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME 2
# define MULTIBOOT_TAG_TYPE_MODULE 3
# define MULTIBOOT_TAG_TYPE_BASIC_MEMINFO 4
# define MULTIBOOT_TAG_TYPE_BOOTDEV 5
# define MULTIBOOT_TAG_TYPE_MMAP 6
# define MULTIBOOT_TAG_TYPE_VBE 7
# define MULTIBOOT_TAG_TYPE_FRAMEBUFFER 8
# define MULTIBOOT_TAG_TYPE_ELF_SECTIONS 9
# define MULTIBOOT_TAG_TYPE_APM 10
# define MULTIBOOT_TAG_TYPE_EFI32 11
# define MULTIBOOT_TAG_TYPE_EFI64 12
# define MULTIBOOT_TAG_TYPE_SMBIOS 13
# define MULTIBOOT_TAG_TYPE_ACPI_OLD 14
# define MULTIBOOT_TAG_TYPE_ACPI_NEW 15
# define MULTIBOOT_TAG_TYPE_NETWORK 16
# define MULTIBOOT_TAG_TYPE_EFI_MMAP 17
# define MULTIBOOT_TAG_TYPE_EFI_BS 18
# define MULTIBOOT_TAG_TYPE_EFI32_IH 19
# define MULTIBOOT_TAG_TYPE_EFI64_IH 20
# define MULTIBOOT_TAG_TYPE_LOAD_BASE_ADDR 21
# define MULTIBOOT_HEADER_TAG_END 0
# define MULTIBOOT_HEADER_TAG_INFORMATION_REQUEST 1
# define MULTIBOOT_HEADER_TAG_ADDRESS 2
# define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS 3
# define MULTIBOOT_HEADER_TAG_CONSOLE_FLAGS 4
# define MULTIBOOT_HEADER_TAG_FRAMEBUFFER 5
# define MULTIBOOT_HEADER_TAG_MODULE_ALIGN 6
# define MULTIBOOT_HEADER_TAG_EFI_BS 7
# define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS_EFI32 8
# define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS_EFI64 9
# define MULTIBOOT_HEADER_TAG_RELOCATABLE 10
# define MULTIBOOT_ARCHITECTURE_I386 0
# define MULTIBOOT_ARCHITECTURE_MIPS32 4
# define MULTIBOOT_HEADER_TAG_OPTIONAL 1
# define MULTIBOOT_LOAD_PREFERENCE_NONE 0
# define MULTIBOOT_LOAD_PREFERENCE_LOW 1
# define MULTIBOOT_LOAD_PREFERENCE_HIGH 2
# define MULTIBOOT_CONSOLE_FLAGS_CONSOLE_REQUIRED 1
# define MULTIBOOT_CONSOLE_FLAGS_EGA_TEXT_SUPPORTED 2
#include "types.h"
struct multiboot_header
{
/* Must be MULTIBOOT_MAGIC - see above. */
u32 magic;
/* ISA */
u32 architecture;
/* Total header length. */
u32 header_length;
/* The above fields plus this one must equal 0 mod 2^32. */
u32 checksum;
};
struct multiboot_header_tag
{
u16 type;
u16 flags;
u32 size;
};
struct multiboot_header_tag_information_request
{
u16 type;
u16 flags;
u32 size;
u32 requests[0];
};
struct multiboot_header_tag_address
{
u16 type;
u16 flags;
u32 size;
u32 header_addr;
u32 load_addr;
u32 load_end_addr;
u32 bss_end_addr;
};
struct multiboot_header_tag_entry_address
{
u16 type;
u16 flags;
u32 size;
u32 entry_addr;
};
struct multiboot_header_tag_console_flags
{
u16 type;
u16 flags;
u32 size;
u32 console_flags;
};
struct multiboot_header_tag_framebuffer
{
u16 type;
u16 flags;
u32 size;
u32 width;
u32 height;
u32 depth;
};
struct multiboot_header_tag_module_align
{
u16 type;
u16 flags;
u32 size;
};
struct multiboot_header_tag_relocatable
{
u16 type;
u16 flags;
u32 size;
u32 min_addr;
u32 max_addr;
u32 align;
u32 preference;
};
struct multiboot_color
{
u8 red;
u8 green;
u8 blue;
};
struct multiboot_mmap_entry
{
u64 addr;
u64 len;
# define MULTIBOOT_MEMORY_AVAILABLE 1
# define MULTIBOOT_MEMORY_RESERVED 2
# define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE 3
# define MULTIBOOT_MEMORY_NVS 4
# define MULTIBOOT_MEMORY_BADRAM 5
u32 type;
u32 zero;
};
typedef struct multiboot_mmap_entry multiboot_memory_map_t;
struct multiboot_tag
{
u32 type;
u32 size;
};
struct multiboot_tag_string
{
u32 type;
u32 size;
u8 string[0];
};
struct multiboot_tag_module
{
u32 type;
u32 size;
u32 mod_start;
u32 mod_end;
u8 cmdline[0];
};
struct multiboot_tag_basic_meminfo
{
u32 type;
u32 size;
u32 mem_lower;
u32 mem_upper;
};
struct multiboot_tag_bootdev
{
u32 type;
u32 size;
u32 biosdev;
u32 slice;
u32 part;
};
struct multiboot_tag_mmap
{
u32 type;
u32 size;
u32 entry_size;
u32 entry_version;
struct multiboot_mmap_entry entries[0];
};
struct multiboot_vbe_info_block
{
u8 external_specification[512];
};
struct multiboot_vbe_mode_info_block
{
u8 external_specification[256];
};
struct multiboot_tag_vbe
{
u32 type;
u32 size;
u16 vbe_mode;
u16 vbe_interface_seg;
u16 vbe_interface_off;
u16 vbe_interface_len;
struct multiboot_vbe_info_block vbe_control_info;
struct multiboot_vbe_mode_info_block vbe_mode_info;
};
struct multiboot_tag_framebuffer_common
{
u32 type;
u32 size;
u64 framebuffer_addr;
u32 framebuffer_pitch;
u32 framebuffer_width;
u32 framebuffer_height;
u8 framebuffer_bpp;
# define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0
# define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1
# define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2
u8 framebuffer_type;
u16 reserved;
};
struct multiboot_tag_framebuffer
{
struct multiboot_tag_framebuffer_common common;
union
{
struct
{
u16 framebuffer_palette_num_colors;
struct multiboot_color framebuffer_palette[0];
};
struct
{
u8 framebuffer_red_field_position;
u8 framebuffer_red_mask_size;
u8 framebuffer_green_field_position;
u8 framebuffer_green_mask_size;
u8 framebuffer_blue_field_position;
u8 framebuffer_blue_mask_size;
};
};
};
struct multiboot_tag_elf_sections
{
u32 type;
u32 size;
u32 num;
u32 entsize;
u32 shndx;
u8 sections[0];
};
struct multiboot_tag_apm
{
u32 type;
u32 size;
u16 version;
u16 cseg;
u32 offset;
u16 cseg_16;
u16 dseg;
u16 flags;
u16 cseg_len;
u16 cseg_16_len;
u16 dseg_len;
};
struct multiboot_tag_efi32
{
u32 type;
u32 size;
u32 pointer;
};
struct multiboot_tag_efi64
{
u32 type;
u32 size;
u64 pointer;
};
struct multiboot_tag_smbios
{
u32 type;
u32 size;
u8 major;
u8 minor;
u8 reserved[6];
u8 tables[0];
};
struct multiboot_tag_old_acpi
{
u32 type;
u32 size;
u8 rsdp[0];
};
struct multiboot_tag_new_acpi
{
u32 type;
u32 size;
u8 rsdp[0];
};
struct multiboot_tag_network
{
u32 type;
u32 size;
u8 dhcpack[0];
};
struct multiboot_tag_efi_mmap
{
u32 type;
u32 size;
u32 descr_size;
u32 descr_vers;
u8 efi_mmap[0];
};
struct multiboot_tag_efi32_ih
{
u32 type;
u32 size;
u32 pointer;
};
struct multiboot_tag_efi64_ih
{
u32 type;
u32 size;
u64 pointer;
};
struct multiboot_tag_load_base_addr
{
u32 type;
u32 size;
u32 load_base_addr;
};
#endif

2
lib/keyboard.c
View File

@ -133,7 +133,7 @@ u8 *getstring(u8 * temp)
"ARGS": [],
"RETURN":"u8"
}
END */
END-SYSCALL */
u8 waitascii(void)
{

26
lib/memory.c
View File

@ -3,7 +3,6 @@
/* */
#include "types.h"
#include "memory.h"
#include "multiboot2.h"
#include "queue.h"
#include "asm.h"
@ -155,7 +154,7 @@ void vfree(void *vaddr)
u64 physical_getmemorysize()
{
u64 maxaddr = 0;
/*u64 maxaddr = 0;
struct multiboot_tag_mmap *tag = getgrubinfo_mem();
multiboot_memory_map_t *mmap;
for (mmap = ((struct multiboot_tag_mmap *) tag)->entries;
@ -168,7 +167,7 @@ u64 physical_getmemorysize()
maxaddr = mmap->addr + mmap->len;
if (maxaddr >= MAXMEMSIZE)
maxaddr = MAXMEMSIZE - 1;
return maxaddr;
return maxaddr;*/
}
/*******************************************************************************/
@ -261,7 +260,7 @@ u64 getmemoryfree(void)
void physical_init(void)
{
u64 page;
/*u64 page;
for (page = 0; page < sizeof(bitmap); page++)
bitmap[page] = 0xFF;
struct multiboot_tag_mmap *tag = getgrubinfo_mem();
@ -276,7 +275,7 @@ void physical_init(void)
physical_range_free(mmap->addr, mmap->len);
else
physical_range_use(mmap->addr, mmap->len);
physical_range_use(0x0, KERNELSIZE);
physical_range_use(0x0, KERNELSIZE);*/
}
/*******************************************************************************/
@ -590,6 +589,23 @@ void virtual_pd_destroy(pd * dst)
return 0;
}
/*******************************************************************************/
/* Affiche toutes les page du directory */
void virtual_pd_show(pd *dst)
{
page *pg;
bool first=true;
TAILQ_FOREACH(pg, &dst->page_head, tailq)
{
if (!first)
print(",");
else
first=false;
printf("%Y",(u32)pg->vaddr);
}
}
/*******************************************************************************/
/* Initialise une pages virtuelles (size) pour le heap du noyau */

158
lib/multiboot.c
View File

@ -1,158 +0,0 @@
/*******************************************************************************/
/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
/* */
#include "multiboot2.h"
static u32 infobloc;
/*******************************************************************************/
/* Initialise avec l'adresse du bloc multiboot2 */
void initmultiboot(const u32 addr)
{
infobloc = addr;
}
/*******************************************************************************/
/* Renvoie les informations souhaitées multiboot2 */
u32 getgrubinfo(u8 type)
{
struct multiboot_tag *tag;
unsigned size = *(unsigned *) infobloc;
for (tag = (struct multiboot_tag *) (infobloc + 8);
tag->type != MULTIBOOT_TAG_TYPE_END;
tag =
(struct multiboot_tag *) ((u8 *) tag +
((tag->size + 7) & ~7)))
if (tag->type == type)
return tag;
}
/*******************************************************************************/
/* Renvoie la ligne de commande */
u8 *getgrubinfo_cmdline(void)
{
struct multiboot_tag_string *tag =
getgrubinfo(MULTIBOOT_TAG_TYPE_CMDLINE);
return tag->string;
}
/*******************************************************************************/
/* Renvoie la quantité de mémoire */
u32 getgrubinfo_ram(void)
{
struct multiboot_tag_basic_meminfo *tag =
getgrubinfo(MULTIBOOT_TAG_TYPE_BASIC_MEMINFO);
return tag->mem_upper;
}
/*******************************************************************************/
/* Renvoie le plan de la mémoire */
struct multiboot_tag_mmap *getgrubinfo_mem(void)
{
struct multiboot_tag_mmap *tag =
getgrubinfo(MULTIBOOT_TAG_TYPE_MMAP);
return tag;
}
/*******************************************************************************/
/* Renvoie les information sur le framebuffer */
struct multiboot_tag_framebuffer *getgrubinfo_fb(void)
{
struct multiboot_tag_framebuffer *tag =
getgrubinfo(MULTIBOOT_TAG_TYPE_FRAMEBUFFER);
return tag;
}
/*******************************************************************************/
/* Affiche les informations multiboot2 ;*/
void getgrubinfo_all(void)
{
struct multiboot_tag *tag;
u32 size = *(unsigned *) infobloc;
if (infobloc & 7)
print("Attention : Bloc non aligne...");
printf(" Taille :% 4u\r\n", (u32) size);
for (tag = (struct multiboot_tag *) (infobloc + 8);
tag->type != MULTIBOOT_TAG_TYPE_END;
tag =
(struct multiboot_tag *) ((u8 *) tag +
((tag->size + 7) & ~7)))
{
printf("--- Tag % hu, Taille % hu\r\n", tag->type,
tag->size);
switch (tag->type)
{
case MULTIBOOT_TAG_TYPE_CMDLINE:
printf(" Ligne de lancement : %s\r\n",
((struct multiboot_tag_string *)
tag)->string);
break;
case MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME:
printf(" Chargeur de boot : %s\r\n",
((struct multiboot_tag_string *)
tag)->string);
break;
case MULTIBOOT_TAG_TYPE_MODULE:
printf(" Module %X-%X. Command line %s\r\n", ((struct multiboot_tag_module *) tag)->mod_start, ((struct multiboot_tag_module *) tag)->mod_end, ((struct multiboot_tag_module *) tag)->cmdline);
break;
case MULTIBOOT_TAG_TYPE_BASIC_MEMINFO:
printf(" Memoire basse : %H, memoire haute = %lH\r\n", ((struct multiboot_tag_basic_meminfo *) tag)->mem_lower << 10, ((u64) ((struct multiboot_tag_basic_meminfo *) tag)->mem_upper) << 10);
break;
case MULTIBOOT_TAG_TYPE_BOOTDEV:
printf(" Peripherique de demarrage : %Y,%u,%u\r\n\r\n", ((struct multiboot_tag_bootdev *) tag)->biosdev, ((struct multiboot_tag_bootdev *) tag)->slice, ((struct multiboot_tag_bootdev *) tag)->part);
break;
case MULTIBOOT_TAG_TYPE_MMAP:
{
multiboot_memory_map_t *mmap;
printf("*** Plan de memoire ***\r\n");
for (mmap =
((struct multiboot_tag_mmap *)
tag)->entries;
(u8 *) mmap < (u8 *) tag + tag->size;
mmap =
(multiboot_memory_map_t
*) ((unsigned long) mmap +
((struct multiboot_tag_mmap *)
tag)->entry_size))
printf(" adresse: %lY, taille:%lY, type:%Y\r\n", (u64) (mmap->addr), (u64) (mmap->len), (u32) (mmap->type));
break;
}
case MULTIBOOT_TAG_TYPE_FRAMEBUFFER:
{
struct multiboot_tag_framebuffer *tagfb =
(struct multiboot_tag_framebuffer
*) tag;
printf(" Framebuffer, resolution %d*%d*%d adresse: %X, ", tagfb->common.framebuffer_width, tagfb->common.framebuffer_height, tagfb->common.framebuffer_bpp, tagfb->common.framebuffer_addr);
switch (tagfb->common.framebuffer_type)
{
case MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED:
printf("mode graphique indexé\r\n");
break;
case MULTIBOOT_FRAMEBUFFER_TYPE_RGB:
printf("mode graphique RGB\r\n");
break;
case MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT:
printf("mode texte EGA\r\n");
break;
}
break;
}
case MULTIBOOT_TAG_TYPE_VBE:
{
struct multiboot_tag_vbe *tagvbe =
(struct multiboot_tag_framebuffer
*) tag;
printf(" VBE 2.0, mode %Y, adresse %hY:%hY-%hY\r\n", tagvbe->vbe_mode, tagvbe->vbe_interface_seg, tagvbe->vbe_interface_off, tagvbe->vbe_interface_len);
}
}
}
}
/*******************************************************************************/

10
lib/process.c
View File

@ -72,7 +72,7 @@ u32 iself(u8 * src)
],
"RETURN":"u32"
}
END */
END-SYSCALL */
void processexit(void)
{
@ -273,6 +273,7 @@ void switchtask(tid_t tid)
}
if (((atask->dump.cs & 0xFFF8) !=SEL_KERNEL_CODE) && ((atask->dump.cs & 0xFFF8) !=SEL_USER_CODE))
cpuerror("SWITCH ERROR", &atask->dump, false);
//printf("%Y\r\n",atask->tid.pid);
atask->dump.eflags = (atask->dump.eflags | 0x200) & 0xFFFFBFFF;
createdump(atask->dump);
if ((atask->dump.cs & 0xFFF8)==SEL_KERNEL_CODE)
@ -433,10 +434,12 @@ tid_t createtask(pid_t pid,u8 *entry, bool kerneltask)
}
else
{
TAILQ_INSERT_TAIL(&aprocess->pdd->page_head, apage, tailq);
new->kernel_stack.ss0 = SEL_KERNEL_STACK;
new->kernel_stack.esp0 =
(u32) apage->vaddr + PAGESIZE - 16;
page *apage = virtual_page_getfree();
TAILQ_INSERT_TAIL(&aprocess->pdd->page_head, apage, tailq);
new->syscall_stack.ss0 = SEL_KERNEL_STACK;
new->syscall_stack.esp0 =
(u32) apage->vaddr + PAGESIZE - 16;
@ -517,11 +520,12 @@ void deleteprocess(pid_t pid)
stopprocess(pid);
process* aprocess=findprocess(pid);
if (aprocess==NULL) return;
if (current.pid==pid)
current=maketid(1,1);
task *next;
TAILQ_FOREACH(next, &aprocess->task_head, tailq)
deletetask(next->tid);
virtual_pd_destroy(aprocess->pdd);
if (current.pid==pid)
current=maketid(1,1);
aprocess->status = PROCESS_STATUS_FREE;
sti();
}

2
lib/scheduler.c
View File

@ -28,7 +28,7 @@ static u32 time = 0;
"ARGS": [],
"RETURN":"u32"
}
END */
END-SYSCALL */
u32 gettimer(void)
{

8
lib/shell.c
View File

@ -11,7 +11,6 @@
#include "string.h"
#include "gdt.h"
#include "shell.h"
#include "multiboot2.h"
#include "math.h"
#include "debug.h"
#include "VGA/ansi.c"
@ -100,11 +99,13 @@ static u8* taskstatus[] = {"PRET ","EXEC.","PAUSE"};
int ps()
{
print("*** Processus en memoire\r\n| PID | Parent|Status|K|P.| Pages|\r\n");
print("*** Processus en memoire\r\n| PID | Parent|Status|K|P.|Directo.|Pages...\r\n");
process* aprocess=findprocess((pid_t)1);
while(true)
{
printf("|%Y|%Y| %s|%c|%hh u|%Y|\r\n",(u32)aprocess->pid,(u32)aprocess->parent,processstatus[aprocess->status],(aprocess->iskernel?'X':' '),aprocess->priority,(u32)aprocess->pdd);
printf("|%Y|%Y| %s|%c|%hh u|%Y|",(u32)aprocess->pid,(u32)aprocess->parent,processstatus[aprocess->status],(aprocess->iskernel?'X':' '),aprocess->priority,(u32)aprocess->pdd);
if (aprocess->pdd!=NULL) virtual_pd_show(aprocess->pdd);
print("\r\n");
aprocess=getnextprocess(aprocess,PROCESS_STATUS_ALL);
if (aprocess==NULL || aprocess->pid==(pid_t)1) break;
}
@ -477,7 +478,6 @@ int err(u8 * commandline)
/* Information sur le démarrage */
int showinfo()
{
getgrubinfo_all();
return 0;
}

12
lib/syscall.c
View File

@ -47,7 +47,7 @@ void initsyscall(void)
"RETURN":"u32",
"DUMP":"yes"
}
END */
END-SYSCALL */
u32 testapi(u32 arg1, u32 arg2, u32 arg3, regs* dump)
{
@ -62,20 +62,20 @@ __attribute__ ((noreturn)) void sysenter_handler(regs *dump)
sti();
switch (dump->eax)
{
case 5:
dump->eax=(u32) processexit(dump->ebx);
break;
case 4:
dump->eax=(u32) gettimer();
break;
case 2:
dump->eax=(u32) print(dump->ebx);
break;
case 0:
dump->eax=(u32) testapi(dump->ebx, dump->esi, dump->edi, dump);
break;
case 1:
dump->eax=(u32) waitascii();
break;
case 5:
dump->eax=(u32) processexit(dump->ebx);
case 0:
dump->eax=(u32) testapi(dump->ebx, dump->esi, dump->edi, dump);
break;
default:

9
lib/vesa.c
View File

@ -6,7 +6,6 @@
#include "memory.h"
#include "asm.h"
#include "types.h"
#include "multiboot2.h"
static videoinfos infos;
@ -19,11 +18,11 @@ static capabilities vesacapabilities[] = {
void VESA_remap_memory(u32 vaddr)
{
struct multiboot_tag_framebuffer *tagfb = getgrubinfo_fb();
/* struct multiboot_tag_framebuffer *tagfb = getgrubinfo_fb();
u32 len = infos.pagesize * 2;
u32 paddr = tagfb->common.framebuffer_addr;
virtual_range_use_kernel(vaddr, paddr, len, PAGE_NOFLAG);
infos.baseaddress = vaddr;
infos.baseaddress = vaddr;*/
}
/*******************************************************************************/
@ -31,7 +30,7 @@ void VESA_remap_memory(u32 vaddr)
u8 *VESA_detect_hardware(void)
{
struct multiboot_tag_framebuffer *tagfb = getgrubinfo_fb();
/* struct multiboot_tag_framebuffer *tagfb = getgrubinfo_fb();
switch (tagfb->common.framebuffer_type)
{
case MULTIBOOT_FRAMEBUFFER_TYPE_RGB:
@ -54,7 +53,7 @@ u8 *VESA_detect_hardware(void)
case MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT:
return NULL;
break;
}
}*/
}
/*******************************************************************************/

18
lib/video.c
View File

@ -1045,7 +1045,7 @@ void triangle(vertex2d * AA, vertex2d * BB, vertex2d * CC, u32 color)
],
"RETURN":"u32"
}
END */
END-SYSCALL */
u32 print(u8 * string)
{
@ -1082,6 +1082,11 @@ u32 storestr(u8 * src, u8 ** dest, u32 len)
return len;
}
/* EXPORT
{
"LIBRARY":"libsys"
}
*/
#define maxbuffersize 4096
/*******************************************************************************/
@ -1155,14 +1160,18 @@ u32 format(const u8 * string, va_list args, u32 maxsize,
u8 strbase16[] = "0x\000";
u8 hexadecimal[] = "*0x\000";
u8 achar, temp;
u8 asize, charadd, unit, precisioni, precisionf;
u8 asize=2;
u8 charadd=0xFF;
u8 unit = 0;
u8 precisioni = 0;
u8 precisionf = 0;
u8 buffer[maxbuffersize];
u8 *bufferend;
u32 buffersize;
u8 *str = string;
u8 *strtemp;
u32 i = 0, counter = 0;
u64 num;
u64 num = 0;
bool flag = false, intok = false, decok = false;
for (achar = *str; achar != '\000'; i++, achar = *(str + i))
@ -1383,7 +1392,6 @@ u32 format(const u8 * string, va_list args, u32 maxsize,
u64);
if (charadd == 0xFF)
charadd = ' ';
unit = 0;
while (num > 1024 * 10)
{
num = num >> 10;
@ -1715,3 +1723,5 @@ u8 *sitoa(u64 num, u8 * str, u64 dim)
strinvert(str);
return pointer;
}
/* END-EXPORT */

10
makefile
View File

@ -1,4 +1,4 @@
all: programs bits32 bits64 harddisk uefi
all: tools programs bits32 bits64 harddisk uefi
sync
bits32: ARCH=bits32
@ -9,6 +9,11 @@ bits64: ARCH=bits64
bits64: lib/libs.o system/system.sys
sync
tools: tools/build
tools/build:
make -C tools
syscall: clean remakeapi all
remakeapi:
@ -37,6 +42,7 @@ togit:
make -C lib togit
make -C final togit
make -C programs togit
make -C tools togit
git status
sync
@ -45,6 +51,7 @@ clean:
make -C lib clean
make -C final clean
make -C programs clean
make -C tools clean
sync
littleclean:
@ -58,6 +65,7 @@ indent:
make -C system indent
make -C lib indent
make -C programs indent
make -C tools indent
sync
backup: clean

4
makesyscall.py
View File

@ -41,7 +41,7 @@ def get_duplicates(sorted_list):
path = "./"
files = os.listdir(path)
pattern = r'\/\* SYSCALL.*END \*\/'
pattern = r'\/\* SYSCALL.*END-SYSCALL \*\/'
output_file = "syscalls.txt"
if os.path.exists(output_file):
os.remove(output_file)
@ -59,7 +59,7 @@ for root, dirs, files in os.walk(path):
results = re.findall(pattern, content, re.MULTILINE| re.DOTALL)
for result in results:
print("Fichier :"+os.path.join(root, name))
new=string.replace(string.replace(result,"/* SYSCALL ",""),"END */","")
new=string.replace(string.replace(result,"/* SYSCALL ",""),"END-SYSCALL */","")
if fo.tell()>2:
new=","+new;
fo.write(new+"\r\n")

6
programs/include/libsys.h
View File

@ -4,8 +4,8 @@
#include "types.h";
u32 getticks(void);
u32 testapi(u32 arg1, u32 arg2, u32 arg3);
u8 waitkey(void);
u32 exit(u32 resultcode);
u32 getticks(void);
u8 waitkey(void);
u32 testapi(u32 arg1, u32 arg2, u32 arg3);

14
programs/lib/libsys.c
View File

@ -6,24 +6,24 @@
#include "syscall.h";
#include "types.h";
u32 exit(u32 resultcode)
{
return syscall1(5,(u32) resultcode);
}
u32 getticks(void)
{
return syscall0(4);
}
u32 testapi(u32 arg1, u32 arg2, u32 arg3)
{
return syscall3(0,(u32) arg1,(u32) arg2,(u32) arg3);
}
u8 waitkey(void)
{
return syscall0(1);
}
u32 exit(u32 resultcode)
u32 testapi(u32 arg1, u32 arg2, u32 arg3)
{
return syscall1(5,(u32) resultcode);
return syscall3(0,(u32) arg1,(u32) arg2,(u32) arg3);
}

48
syscalls.txt
View File

@ -1,5 +1,18 @@
[
{
"ID":5,
"LIBRARY":"libsys",
"NAME":"exit",
"INTERNALNAME":"processexit",
"DESCRIPTION":"End a task for user or kernel domain",
"ARGS": [
{"TYPE":"u32","NAME":"resultcode","DESCRIPTION":"Code result of the execution"}
],
"RETURN":"u32"
}
,
{
"ID":4,
"NAME":"getticks",
"LIBRARY":"libsys",
@ -22,6 +35,17 @@
"RETURN":"u32"
}
,
{
"ID":1,
"LIBRARY":"libsys",
"NAME":"waitkey",
"INTERNALNAME":"waitascii",
"DESCRIPTION":"Wait for user to press a key and return the ascii code pressed",
"ARGS": [],
"RETURN":"u8"
}
,
{
"ID":0,
@ -38,28 +62,4 @@
"DUMP":"yes"
}
,
{
"ID":1,
"LIBRARY":"libsys",
"NAME":"waitkey",
"INTERNALNAME":"waitascii",
"DESCRIPTION":"Wait for user to press a key and return the ascii code pressed",
"ARGS": [],
"RETURN":"u8"
}
,
{
"ID":5,
"LIBRARY":"libsys",
"NAME":"exit",
"INTERNALNAME":"processexit",
"DESCRIPTION":"End a task for user or kernel domain",
"ARGS": [
{"TYPE":"u32","NAME":"resultcode","DESCRIPTION":"Code result of the execution"}
],
"RETURN":"u32"
}
]

1
system/linker.lds
View File

@ -1,5 +1,6 @@
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
OUTPUT_ARCH(i386)
OUPUT(system.bin)
ENTRY(start)

24
system/makefile
View File

@ -1,24 +1,32 @@
GCC=gcc -O0 -g -nostdinc -ffreestanding -fno-builtin -Wall -w -I ../include -m32 -fno-pie -no-pie -c -o
GCCREAL=gcc -O0 -g -nostdinc -ffreestanding -fno-builtin -Wall -w -I ../include -m16 -fomit-frame-pointer -fno-pic -mno-mmx -mno-sse -mstack-alignment=4 -mno-80387 -mno-fp-ret-in-387 -c -o
ASM=gcc -nostdinc -ffreestanding -fno-builtin -m32 -c -fno-pie -no-pie
LINK=ld -m elf_i386 -T linker.lds -n -o
LINK=ld -m elf_i386 -n -o
CONVERT=dos2unix
INDENT=indent -nhnl -l75 -ppi3 -ts8 -bls -nbc -di8 -nbad -nbap -nsob -i8 -bl -bli0 -ncdw -nce -cli8 -cbi0 -npcs -cs -saf -sai -saw -nprs -lp -npsl
REMOVE=rm -f
CHANGEPERM=chmod 644
all: system.sys
all: system.sys
system.sys: setup.bin system.bin
tools/build setup.bin system.bin zoffset.h system.sys
sync
togit: clean indent
system.sys: multiboot.o system.o ../lib/libs.o
$(LINK) system.sys multiboot.o system.o ../lib/libs.o
system.bin: system.o ../lib/libs.o
$(LINK) -T linker.lds multiboot.o system.o ../lib/libs.o
setup.bin: setup.o
$(LINK) $@ $^
$(OBJDUMP)
setup.o:
$(GCCREAL) $@ $^
system.o:
$(GCC) system.o system.c
multiboot.o:
$(ASM) multiboot.S -DVESA=$(VESA)
$(GCC) $@ $^
clean:
$(REMOVE) *.o

88
system/multiboot.S
View File

@ -1,88 +0,0 @@
/*******************************************************************************/
/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
/* */
#define MULTIBOOT_SEARCH 32768
#define MULTIBOOT_HEADER_ALIGN 8
#define MULTIBOOT2_HEADER_MAGIC 0xe85250d6
#define MULTIBOOT2_BOOTLOADER_MAGIC 0x36d76289
#define MULTIBOOT_MOD_ALIGN 0x00001000
#define MULTIBOOT_INFO_ALIGN 0x00000008
#define MULTIBOOT_TAG_ALIGN 8
#define MULTIBOOT_TAG_TYPE_END 0
#define MULTIBOOT_TAG_TYPE_CMDLINE 1
#define MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME 2
#define MULTIBOOT_TAG_TYPE_MODULE 3
#define MULTIBOOT_TAG_TYPE_BASIC_MEMINFO 4
#define MULTIBOOT_TAG_TYPE_BOOTDEV 5
#define MULTIBOOT_TAG_TYPE_MMAP 6
#define MULTIBOOT_TAG_TYPE_VBE 7
#define MULTIBOOT_TAG_TYPE_FRAMEBUFFER 8
#define MULTIBOOT_TAG_TYPE_ELF_SECTIONS 9
#define MULTIBOOT_TAG_TYPE_APM 10
#define MULTIBOOT_TAG_TYPE_EFI32 11
#define MULTIBOOT_TAG_TYPE_EFI64 12
#define MULTIBOOT_TAG_TYPE_SMBIOS 13
#define MULTIBOOT_TAG_TYPE_ACPI_OLD 14
#define MULTIBOOT_TAG_TYPE_ACPI_NEW 15
#define MULTIBOOT_TAG_TYPE_NETWORK 16
#define MULTIBOOT_TAG_TYPE_EFI_MMAP 17
#define MULTIBOOT_TAG_TYPE_EFI_BS 18
#define MULTIBOOT_TAG_TYPE_EFI32_IH 19
#define MULTIBOOT_TAG_TYPE_EFI64_IH 20
#define MULTIBOOT_TAG_TYPE_LOAD_BASE_ADDR 21
#define MULTIBOOT_HEADER_TAG_END 0
#define MULTIBOOT_HEADER_TAG_INFORMATION_REQUEST 1
#define MULTIBOOT_HEADER_TAG_ADDRESS 2
#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS 3
#define MULTIBOOT_HEADER_TAG_CONSOLE_FLAGS 4
#define MULTIBOOT_HEADER_TAG_FRAMEBUFFER 5
#define MULTIBOOT_HEADER_TAG_MODULE_ALIGN 6
#define MULTIBOOT_HEADER_TAG_EFI_BS 7
#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS_EFI32 8
#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS_EFI64 9
#define MULTIBOOT_HEADER_TAG_RELOCATABLE 10
#define MULTIBOOT_ARCHITECTURE_I386 0
#define MULTIBOOT_ARCHITECTURE_MIPS32 4
#define MULTIBOOT_HEADER_TAG_OPTIONAL 1
#define MULTIBOOT_LOAD_PREFERENCE_NONE 0
#define MULTIBOOT_LOAD_PREFERENCE_LOW 1
#define MULTIBOOT_LOAD_PREFERENCE_HIGH 2
#define MULTIBOOT_CONSOLE_FLAGS_CONSOLE_REQUIRED 1
#define MULTIBOOT_CONSOLE_FLAGS_EGA_TEXT_SUPPORTED 2
.section .multiboot, "a"
.align MULTIBOOT_HEADER_ALIGN
multiboot_header:
.long MULTIBOOT2_HEADER_MAGIC
.long MULTIBOOT_ARCHITECTURE_I386
.long multiboot_header_end - multiboot_header
.long -(MULTIBOOT2_HEADER_MAGIC + MULTIBOOT_ARCHITECTURE_I386 + (multiboot_header_end - multiboot_header))
#ifdef VESA
#warning VESA active
framebuffer_tag_start:
.align MULTIBOOT_HEADER_ALIGN
.short MULTIBOOT_HEADER_TAG_FRAMEBUFFER
.short MULTIBOOT_HEADER_TAG_OPTIONAL
.long framebuffer_tag_end - framebuffer_tag_start
.long 1024
.long 768
.long 32
framebuffer_tag_end:
#endif
.align MULTIBOOT_HEADER_ALIGN
.short MULTIBOOT_HEADER_TAG_END
.short 0
.long 8
multiboot_header_end:
.section .text
.globl start
start:
pushl %ebx
pushl %eax
call main
hlt

4
system/system.c
View File

@ -46,11 +46,9 @@ void error()
return;
}
int main(u32 magic, u32 addr)
int main(u8* info)
{
cli();
if (magic == MULTIBOOT2_BOOTLOADER_MAGIC)
initmultiboot(addr);
initdriver();
registerdriver(&vgafonctions);
registerdriver(&vesafonctions);

2
templates/syscall.c
View File

@ -47,7 +47,7 @@ void initsyscall(void)
"RETURN":"u32",
"DUMP":"yes"
}
END */
END-SYSCALL */
u32 testapi(u32 arg1, u32 arg2, u32 arg3, regs* dump)
{

435
tools/build.c Normal file
View File

@ -0,0 +1,435 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright (C) 1997 Martin Mares
* Copyright (C) 2007 H. Peter Anvin
*/
/*
* This file builds a disk-image from three different files:
*
* - setup: 8086 machine code, sets up system parm
* - system: 80386 code for actual system
* - zoffset.h: header with ZO_* defines
*
* It does some checking that all files are of the correct type, and writes
* the result to the specified destination, removing headers and padding to
* the right amount. It also writes some system data to stdout.
*/
/*
* Changes by tytso to allow root device specification
* High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996
* Cross compiling fixes by Gertjan van Wingerde, July 1996
* Rewritten by Martin Mares, April 1997
* Substantially overhauled by H. Peter Anvin, April 2007
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <le_byteshift.h>
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
#define DEFAULT_MAJOR_ROOT 0
#define DEFAULT_MINOR_ROOT 0
#define DEFAULT_ROOT_DEV (DEFAULT_MAJOR_ROOT << 8 | DEFAULT_MINOR_ROOT)
/* Minimal number of setup sectors */
#define SETUP_SECT_MIN 5
#define SETUP_SECT_MAX 64
/* This must be large enough to hold the entire setup */
u8 buf[SETUP_SECT_MAX*512];
#define PECOFF_RELOC_RESERVE 0x20
unsigned long efi32_stub_entry;
unsigned long efi64_stub_entry;
unsigned long efi_pe_entry;
unsigned long startup_64;
/*----------------------------------------------------------------------*/
static const u32 crctab32[] = {
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
0x2d02ef8d
};
static u32 partial_crc32_one(u8 c, u32 crc)
{
return crctab32[(crc ^ c) & 0xff] ^ (crc >> 8);
}
static u32 partial_crc32(const u8 *s, int len, u32 crc)
{
while (len--)
crc = partial_crc32_one(*s++, crc);
return crc;
}
static void die(const char * str, ...)
{
va_list args;
va_start(args, str);
vfprintf(stderr, str, args);
fputc('\n', stderr);
exit(1);
}
static void usage(void)
{
die("Usage: build setup system zoffset.h image");
}
#ifdef CONFIG_EFI_STUB
static void update_pecoff_section_header_fields(char *section_name, u32 vma, u32 size, u32 datasz, u32 offset)
{
unsigned int pe_header;
unsigned short num_sections;
u8 *section;
pe_header = get_unaligned_le32(&buf[0x3c]);
num_sections = get_unaligned_le16(&buf[pe_header + 6]);
#ifdef CONFIG_X86_32
section = &buf[pe_header + 0xa8];
#else
section = &buf[pe_header + 0xb8];
#endif
while (num_sections > 0) {
if (strncmp((char*)section, section_name, 8) == 0) {
/* section header size field */
put_unaligned_le32(size, section + 0x8);
/* section header vma field */
put_unaligned_le32(vma, section + 0xc);
/* section header 'size of initialised data' field */
put_unaligned_le32(datasz, section + 0x10);
/* section header 'file offset' field */
put_unaligned_le32(offset, section + 0x14);
break;
}
section += 0x28;
num_sections--;
}
}
static void update_pecoff_section_header(char *section_name, u32 offset, u32 size)
{
update_pecoff_section_header_fields(section_name, offset, size, size, offset);
}
static void update_pecoff_setup_and_reloc(unsigned int size)
{
u32 setup_offset = 0x200;
u32 reloc_offset = size - PECOFF_RELOC_RESERVE;
u32 setup_size = reloc_offset - setup_offset;
update_pecoff_section_header(".setup", setup_offset, setup_size);
update_pecoff_section_header(".reloc", reloc_offset, PECOFF_RELOC_RESERVE);
/*
* Modify .reloc section contents with a single entry. The
* relocation is applied to offset 10 of the relocation section.
*/
put_unaligned_le32(reloc_offset + 10, &buf[reloc_offset]);
put_unaligned_le32(10, &buf[reloc_offset + 4]);
}
static void update_pecoff_text(unsigned int text_start, unsigned int file_sz)
{
unsigned int pe_header;
unsigned int text_sz = file_sz - text_start;
pe_header = get_unaligned_le32(&buf[0x3c]);
/*
* Size of code: Subtract the size of the first sector (512 bytes)
* which includes the header.
*/
put_unaligned_le32(file_sz - 512, &buf[pe_header + 0x1c]);
/*
* Address of entry point for PE/COFF executable
*/
put_unaligned_le32(text_start + efi_pe_entry, &buf[pe_header + 0x28]);
update_pecoff_section_header(".text", text_start, text_sz);
}
static void update_pecoff_bss(unsigned int file_sz, unsigned int init_sz)
{
unsigned int pe_header;
unsigned int bss_sz = init_sz - file_sz;
pe_header = get_unaligned_le32(&buf[0x3c]);
/* Size of uninitialized data */
put_unaligned_le32(bss_sz, &buf[pe_header + 0x24]);
/* Size of image */
put_unaligned_le32(init_sz, &buf[pe_header + 0x50]);
update_pecoff_section_header_fields(".bss", file_sz, bss_sz, 0, 0);
}
static int reserve_pecoff_reloc_section(int c)
{
/* Reserve 0x20 bytes for .reloc section */
memset(buf+c, 0, PECOFF_RELOC_RESERVE);
return PECOFF_RELOC_RESERVE;
}
static void efi_stub_defaults(void)
{
/* Defaults for old kernel */
#ifdef CONFIG_X86_32
efi_pe_entry = 0x10;
#else
efi_pe_entry = 0x210;
startup_64 = 0x200;
#endif
}
static void efi_stub_entry_update(void)
{
unsigned long addr = efi32_stub_entry;
#ifdef CONFIG_X86_64
/* Yes, this is really how we defined it :( */
addr = efi64_stub_entry - 0x200;
#endif
#ifdef CONFIG_EFI_MIXED
if (efi32_stub_entry != addr)
die("32-bit and 64-bit EFI entry points do not match\n");
#endif
put_unaligned_le32(addr, &buf[0x264]);
}
#else
static inline void update_pecoff_setup_and_reloc(unsigned int size) {}
static inline void update_pecoff_text(unsigned int text_start,
unsigned int file_sz) {}
static inline void update_pecoff_bss(unsigned int file_sz,
unsigned int init_sz) {}
static inline void efi_stub_defaults(void) {}
static inline void efi_stub_entry_update(void) {}
static inline int reserve_pecoff_reloc_section(int c)
{
return 0;
}
#endif /* CONFIG_EFI_STUB */
/*
* Parse zoffset.h and find the entry points. We could just #include zoffset.h
* but that would mean tools/build would have to be rebuilt every time. It's
* not as if parsing it is hard...
*/
#define PARSE_ZOFS(p, sym) do { \
if (!strncmp(p, "#define ZO_" #sym " ", 11+sizeof(#sym))) \
sym = strtoul(p + 11 + sizeof(#sym), NULL, 16); \
} while (0)
static void parse_zoffset(char *fname)
{
FILE *file;
char *p;
int c;
file = fopen(fname, "r");
if (!file)
die("Unable to open `%s': %m", fname);
c = fread(buf, 1, sizeof(buf) - 1, file);
if (ferror(file))
die("read-error on `zoffset.h'");
fclose(file);
buf[c] = 0;
p = (char *)buf;
while (p && *p) {
PARSE_ZOFS(p, efi32_stub_entry);
PARSE_ZOFS(p, efi64_stub_entry);
PARSE_ZOFS(p, efi_pe_entry);
PARSE_ZOFS(p, startup_64);
p = strchr(p, '\n');
while (p && (*p == '\r' || *p == '\n'))
p++;
}
}
int main(int argc, char ** argv)
{
unsigned int i, sz, setup_sectors, init_sz;
int c;
u32 sys_size;
struct stat sb;
FILE *file, *dest;
int fd;
void *kernel;
u32 crc = 0xffffffffUL;
efi_stub_defaults();
if (argc != 5)
usage();
parse_zoffset(argv[3]);
dest = fopen(argv[4], "w");
if (!dest)
die("Unable to write `%s': %m", argv[4]);
/* Copy the setup code */
file = fopen(argv[1], "r");
if (!file)
die("Unable to open `%s': %m", argv[1]);
c = fread(buf, 1, sizeof(buf), file);
if (ferror(file))
die("read-error on `setup'");
if (c < 1024)
die("The setup must be at least 1024 bytes");
if (get_unaligned_le16(&buf[510]) != 0xAA55)
die("Boot block hasn't got boot flag (0xAA55)");
fclose(file);
c += reserve_pecoff_reloc_section(c);
/* Pad unused space with zeros */
setup_sectors = (c + 511) / 512;
if (setup_sectors < SETUP_SECT_MIN)
setup_sectors = SETUP_SECT_MIN;
i = setup_sectors*512;
memset(buf+c, 0, i-c);
update_pecoff_setup_and_reloc(i);
/* Set the default root device */
put_unaligned_le16(DEFAULT_ROOT_DEV, &buf[508]);
printf("Setup is %d bytes (padded to %d bytes).\n", c, i);
/* Open and stat the kernel file */
fd = open(argv[2], O_RDONLY);
if (fd < 0)
die("Unable to open `%s': %m", argv[2]);
if (fstat(fd, &sb))
die("Unable to stat `%s': %m", argv[2]);
sz = sb.st_size;
printf("System is %d kB\n", (sz+1023)/1024);
kernel = mmap(NULL, sz, PROT_READ, MAP_SHARED, fd, 0);
if (kernel == MAP_FAILED)
die("Unable to mmap '%s': %m", argv[2]);
/* Number of 16-byte paragraphs, including space for a 4-byte CRC */
sys_size = (sz + 15 + 4) / 16;
/* Patch the setup code with the appropriate size parameters */
buf[0x1f1] = setup_sectors-1;
put_unaligned_le32(sys_size, &buf[0x1f4]);
update_pecoff_text(setup_sectors * 512, i + (sys_size * 16));
init_sz = get_unaligned_le32(&buf[0x260]);
update_pecoff_bss(i + (sys_size * 16), init_sz);
efi_stub_entry_update();
crc = partial_crc32(buf, i, crc);
if (fwrite(buf, 1, i, dest) != i)
die("Writing setup failed");
/* Copy the kernel code */
crc = partial_crc32(kernel, sz, crc);
if (fwrite(kernel, 1, sz, dest) != sz)
die("Writing kernel failed");
/* Add padding leaving 4 bytes for the checksum */
while (sz++ < (sys_size*16) - 4) {
crc = partial_crc32_one('\0', crc);
if (fwrite("\0", 1, 1, dest) != 1)
die("Writing padding failed");
}
/* Write the CRC */
printf("CRC %x\n", crc);
put_unaligned_le32(crc, buf);
if (fwrite(buf, 1, 4, dest) != 4)
die("Writing CRC failed");
/* Catch any delayed write failures */
if (fclose(dest))
die("Writing image failed");
close(fd);
/* Everything is OK */
return 0;
}

71
tools/le_byteshift.h Normal file
View File

@ -0,0 +1,71 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _TOOLS_LE_BYTESHIFT_H
#define _TOOLS_LE_BYTESHIFT_H
#include <stdint.h>
static inline uint16_t __get_unaligned_le16(const uint8_t *p)
{
return p[0] | p[1] << 8;
}
static inline uint32_t __get_unaligned_le32(const uint8_t *p)
{
return p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24;
}
static inline uint64_t __get_unaligned_le64(const uint8_t *p)
{
return (uint64_t)__get_unaligned_le32(p + 4) << 32 |
__get_unaligned_le32(p);
}
static inline void __put_unaligned_le16(uint16_t val, uint8_t *p)
{
*p++ = val;
*p++ = val >> 8;
}
static inline void __put_unaligned_le32(uint32_t val, uint8_t *p)
{
__put_unaligned_le16(val >> 16, p + 2);
__put_unaligned_le16(val, p);
}
static inline void __put_unaligned_le64(uint64_t val, uint8_t *p)
{
__put_unaligned_le32(val >> 32, p + 4);
__put_unaligned_le32(val, p);
}
static inline uint16_t get_unaligned_le16(const void *p)
{
return __get_unaligned_le16((const uint8_t *)p);
}
static inline uint32_t get_unaligned_le32(const void *p)
{
return __get_unaligned_le32((const uint8_t *)p);
}
static inline uint64_t get_unaligned_le64(const void *p)
{
return __get_unaligned_le64((const uint8_t *)p);
}
static inline void put_unaligned_le16(uint16_t val, void *p)
{
__put_unaligned_le16(val, p);
}
static inline void put_unaligned_le32(uint32_t val, void *p)
{
__put_unaligned_le32(val, p);
}
static inline void put_unaligned_le64(uint64_t val, void *p)
{
__put_unaligned_le64(val, p);
}
#endif /* _TOOLS_LE_BYTESHIFT_H */

28
tools/makefile Executable file
View File

@ -0,0 +1,28 @@
CC=gcc -I . -o
SRCS= $(wildcard *.c)
EXECS= $(SRCS:.c=)
CONVERT=dos2unix
INDENT=indent -nhnl -l75 -ppi3 -ts8 -bls -nbc -di8 -nbad -nbap -nsob -i8 -bl -bli0 -ncdw -nce -cli8 -cbi0 -npcs -cs -saf -sai -saw -nprs -lp -npsl
REMOVE=rm -f
CHANGELF=elfedit --output-osabi FenixOS
CHANGEPERM=chmod 644
all: $(EXECS)
sync
togit: clean indent
%: %.c
$(CC) $@ $<
clean:
$(REMOVE) *.o
$(REMOVE) *.c~
find . -type f ! -name makefile -perm /u=x -maxdepth 1 -regex '.+/\.?[^\.]+' -exec $(REMOVE) {} \;
sync
indent:
$(CHANGEPERM) *.c
$(CONVERT) *.c
$(INDENT) *.c
$(REMOVE) *.c~
sync