feat: suppression de NASM en tant qu'assembleur et utilisateur de GAS, bascule des handlers sur un nouveau fichier et modification progressive des interruptions/exceptions
This commit is contained in:
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ddfba60973
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@ -63,7 +63,6 @@ Compilation:
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Nom | Paquet | Version
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Nom | Paquet | Version
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--- | --- | ---
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--- | --- | ---
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NASM | nasm | 2.11.08
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gcc | gcc | 5.4.0 20160609
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gcc | gcc | 5.4.0 20160609
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GNU Make | make | 4.1
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GNU Make | make | 4.1
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Outils divers | binutils | 2.26-8
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Outils divers | binutils | 2.26-8
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@ -106,7 +105,7 @@ Puis cloner le source chez vous avec la commande :
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Sous linux - Debian & Ubuntu like
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Sous linux - Debian & Ubuntu like
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`sudo apt-get install nasm gcc qemu fusefat fuseext2 cgdb ovmf bsdmainutils tar bsdmainutils indent binutils`
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`sudo apt-get install gcc qemu fusefat fuseext2 cgdb ovmf bsdmainutils tar bsdmainutils indent binutils`
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ou sinon, depuis un terminal disposé sur le répertoire cos2000
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ou sinon, depuis un terminal disposé sur le répertoire cos2000
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@ -43,3 +43,4 @@ bool cansetflag(u32 flag);
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void cpuid(u32 op, u32 * eax, u32 * ebx, u32 * ecx, u32 * edx);
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void cpuid(u32 op, u32 * eax, u32 * ebx, u32 * ecx, u32 * edx);
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u8 getcpuinfos(cpuinfo * inf);
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u8 getcpuinfos(cpuinfo * inf);
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void show_cpu(regs * stack);
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void show_cpu(regs * stack);
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void cpuerror(const u8 * src, const regs * stack, bool returnto);
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@ -0,0 +1,41 @@
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/*******************************************************************************/
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/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
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/* */
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#include "types.h"
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__attribute__((interrupt)) void interruption(exception_stack_noerror *caller);
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void exception0();
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void exception1();
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void exception2();
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void exception3();
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void exception4();
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void exception5();
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void exception6();
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void exception7();
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void exception8();
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void exception9();
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void exception10();
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void exception11();
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void exception12();
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void exception13();
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void exception14();
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void exception15();
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void exception16();
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void exception17();
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void exception18();
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__attribute__((interrupt)) void irq0(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq1(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq2(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq3(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq4(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq5(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq6(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq7(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq8(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq9(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq10(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq11(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq12(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq13(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq14(exception_stack_noerror *caller);
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__attribute__((interrupt)) void irq15(exception_stack_noerror *caller);
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@ -339,5 +339,5 @@ void makeidtdes(u32 offset, u16 select, u16 type, idtdes * desc);
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void initpic(void);
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void initpic(void);
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void enableirq(u8 irq);
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void enableirq(u8 irq);
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void disableirq(u8 irq);
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void disableirq(u8 irq);
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void cpuerror(const u8 * src, const regs * stack);
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void cpuerror(const u8 * src, const regs * stack, bool returnto);
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#endif
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#endif
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@ -1,6 +1,9 @@
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/*******************************************************************************/
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/*******************************************************************************/
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/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
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/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
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/* */
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/* */
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#include "interrupts.h"
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#define SCAN_CTRL 0x1D
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#define SCAN_CTRL 0x1D
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#define SCAN_LEFTSHIFT 0x2A
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#define SCAN_LEFTSHIFT 0x2A
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#define SCAN_RIGHTSHIFT 0x36
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#define SCAN_RIGHTSHIFT 0x36
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@ -31,7 +34,7 @@
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#define STATUS_NUM 0x2000
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#define STATUS_NUM 0x2000
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#define STATUS_SCRL 0x4000
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#define STATUS_SCRL 0x4000
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void keyboard(void);
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__attribute__((interrupt)) void keyboard_handler(exception_stack_noerror *caller);
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void reboot(void);
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void reboot(void);
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void outkbd(u8 port, u8 data);
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void outkbd(u8 port, u8 data);
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u8 waitascii(void);
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u8 waitascii(void);
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@ -1,7 +1,10 @@
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/*******************************************************************************/
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/*******************************************************************************/
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/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
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/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
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/* */
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/* */
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#include "interrupts.h"
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bool initmouse(void);
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bool initmouse(void);
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void mouse(void);
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__attribute__((interrupt)) void mouse_handler(exception_stack_noerror *caller);
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void outmseack(u8 value);
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void outmseack(u8 value);
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void outmsecmd(u8 command);
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void outmsecmd(u8 command);
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@ -0,0 +1,13 @@
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/*******************************************************************************/
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/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
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/* */
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#include "types.h"
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#include "multiboot2.h"
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u32 getgrubinfo(u8 type);
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u8 *getgrubinfo_cmdline(void);
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u32 getgrubinfo_ram(void);
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struct multiboot_tag_mmap *getgrubinfo_mem(void);
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struct multiboot_tag_framebuffer *getgrubinfo_fb(void);
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void getgrubinfo_all(void);
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void initmultiboot(const u32 addr);
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@ -1,8 +1,6 @@
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/*******************************************************************************/
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/*******************************************************************************/
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/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
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/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
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/* */
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/* */
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#include "types.h"
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#ifndef MULTIBOOT
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#ifndef MULTIBOOT
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# define MULTIBOOT
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# define MULTIBOOT
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@ -71,6 +69,7 @@
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# define MULTIBOOT_CONSOLE_FLAGS_CONSOLE_REQUIRED 1
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# define MULTIBOOT_CONSOLE_FLAGS_CONSOLE_REQUIRED 1
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# define MULTIBOOT_CONSOLE_FLAGS_EGA_TEXT_SUPPORTED 2
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# define MULTIBOOT_CONSOLE_FLAGS_EGA_TEXT_SUPPORTED 2
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#include "types.h"
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struct multiboot_header
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struct multiboot_header
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{
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{
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/* Must be MULTIBOOT_MAGIC - see above. */
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/* Must be MULTIBOOT_MAGIC - see above. */
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@ -389,12 +388,4 @@ struct multiboot_tag_load_base_addr
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u32 load_base_addr;
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u32 load_base_addr;
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};
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};
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u32 getgrubinfo(u8 type);
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u8 *getgrubinfo_cmdline(void);
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u32 getgrubinfo_ram(void);
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struct multiboot_tag_mmap *getgrubinfo_mem(void);
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struct multiboot_tag_framebuffer *getgrubinfo_fb(void);
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void getgrubinfo_all(void);
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void initmultiboot(const u32 addr);
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#endif
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#endif
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@ -47,4 +47,4 @@
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/* Vers 6 arguments maximum */
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/* Vers 6 arguments maximum */
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void initsyscall(void);
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void initsyscall(void);
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void sysenter_handler(void);
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__attribute__ ((noreturn)) void sysenter_handler(void);
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19
lib/cpu.c
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lib/cpu.c
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@ -33,6 +33,25 @@ static u8 *msg[] = {
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static u8 space[] = " ";
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static u8 space[] = " ";
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/******************************************************************************/
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/* Affiche une erreur CPU et fige l'ordinateur */
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void cpuerror(const u8 * src, const regs * stack, bool returnto)
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{
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printf("\033[31m*** ERREUR CPU : %s *** \r\n", src);
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if (stack != NULL)
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show_cpu(stack);
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print("<Appuyer une touche pour continuer>\033[0m\r\n");
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sti();
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waitascii();
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if (!returnto)
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{
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print("Retour en force au SHELL\r\n");
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initselectors(getinitretry());
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}
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}
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/******************************************************************************/
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/******************************************************************************/
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/* Annule les FLAGs CPU */
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/* Annule les FLAGs CPU */
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@ -0,0 +1,376 @@
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/*******************************************************************************/
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/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
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/* */
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#include "interrupts.h"
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#include "types.h"
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#include "asm.h"
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#include "memory.h"
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#include "video.h"
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#include "gdt.h"
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#include "system.h"
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#include "debug.h"
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#include "process.h"
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/******************************************************************************/
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/* Déclenché lors de l'appel d'une interruption */
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__attribute__((interrupt)) void interruption(exception_stack_noerror *caller)
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{
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print("Appel d'une interruption\r\n");
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}
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/******************************************************************************/
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/* Les expections */
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void exception0()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("#DE Divide error", dump, false);
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}
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void exception1()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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changevc(6);
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clearscreen();
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show_lightcpu(dump);
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printf("\r\n\033[7m[P]\033[0m PAS A PAS \033[7m D \033[0m PAS A PAS DETAILLE \033[7m C \033[0m CONTINUER \033[7m S \033[0m STOPPER \033[7m V \033[0m VOIR \033[7m S \033[0m SCINDER");
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sti();
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u8 ascii = waitascii();
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cli();
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if (ascii == 'P' || ascii == 'p')
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setdebugreg(0,
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caller->eip + disasm(caller->eip, NULL, false),
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DBG_EXEC);
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else if (ascii == 'D' || ascii == 'd')
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setdebugreg(0, 0, DBG_CLEAR);
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else if (ascii == 'C' || ascii == 'c')
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setdebugreg(0, 0, DBG_CLEAR);
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else if (ascii == 'S' || ascii == 's')
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{
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changevc(0);
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sti();
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initselectors(getinitretry());
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}
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changevc(0);
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restdebugcpu();
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iret();
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}
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void exception2()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("NMI Non-maskable hardware interrupt", dump, false);
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}
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void exception3()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("#BP INT3 instruction", dump, true);
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iret();
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}
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void exception4()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("#OF INTO instruction detected overflow", dump, false);
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}
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void exception5()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("#BR BOUND instruction detected overrange", dump, false);
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}
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void exception6()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("#UD Invalid instruction opcode", dump, false);
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}
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void exception7()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("#NM No coprocessor", dump, false);
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}
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void exception8()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("#DF Double fault", dump, false);
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}
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void exception9()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("Coprocessor segment overrun", dump, false);
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}
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void exception10()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("#TS Invalid task state segment (TSS)", dump, false);
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}
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void exception11()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("#NP Segment not present", dump, false);
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}
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void exception12()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu_noerror(dump, caller, oldesp);
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cpuerror("#SS Stack fault", dump, false);
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}
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void exception13()
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{
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regs *dump;
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exception_stack_noerror *caller;
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u32 *oldesp;
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savecpu(dump, caller, oldesp);
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cpuerror("#GP General protection fault (GPF)", dump, false);
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}
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static u8 ex14_errors1[] =
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"Supervisory process tried to read a non-present page entry";
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||||||
|
static u8 ex14_errors2[] =
|
||||||
|
"Supervisory process tried to read a page and caused a protection fault";
|
||||||
|
static u8 ex14_errors3[] =
|
||||||
|
"Supervisory process tried to write to a non-present page entry";
|
||||||
|
static u8 ex14_errors4[] =
|
||||||
|
"Supervisory process tried to write a page and caused a protection fault";
|
||||||
|
static u8 ex14_errors5[] =
|
||||||
|
"User process tried to read a non-present page entry";
|
||||||
|
static u8 ex14_errors6[] =
|
||||||
|
"User process tried to read a page and caused a protection fault";
|
||||||
|
static u8 ex14_errors7[] =
|
||||||
|
"User process tried to write to a non-present page entry";
|
||||||
|
static u8 ex14_errors8[] =
|
||||||
|
"User process tried to write a page and caused a protection fault";
|
||||||
|
static u8 *ex14_errors[] =
|
||||||
|
{ &ex14_errors1, &ex14_errors2, &ex14_errors3, &ex14_errors4,
|
||||||
|
&ex14_errors5, &ex14_errors6, &ex14_errors7, &ex14_errors8
|
||||||
|
};
|
||||||
|
|
||||||
|
void exception14()
|
||||||
|
{
|
||||||
|
regs *dump;
|
||||||
|
exception_stack *caller;
|
||||||
|
u32 *oldesp;
|
||||||
|
getEBP(oldesp);
|
||||||
|
dumpcpu();
|
||||||
|
getESP(dump);
|
||||||
|
dump->ebp = *oldesp;
|
||||||
|
dump->eip = caller->eip;
|
||||||
|
dump->cs = caller->cs;
|
||||||
|
if (caller->cs == SEL_KERNEL_CODE)
|
||||||
|
dump->esp = (u32) oldesp + sizeof(exception_stack);
|
||||||
|
else
|
||||||
|
{
|
||||||
|
dump->esp = (u32) ((exception_stack_user *) caller)->esp;
|
||||||
|
dump->ss = (u32) ((exception_stack_user *) caller)->ss;
|
||||||
|
}
|
||||||
|
if (dump->cr2 >= USER_CODE && dump->cr2 < USER_STACK)
|
||||||
|
{
|
||||||
|
virtual_range_new(getcurrentprocess()->pdd,
|
||||||
|
(u8 *) (dump->cr2 & 0xFFFFF000),
|
||||||
|
PAGESIZE, PAGE_ALL);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
printf("Page fault - %s at adress %Y cs:eip - %Y:%Y\r\n",
|
||||||
|
ex14_errors[caller->error_code & 0xF], dump->cr2,
|
||||||
|
dump->cs, dump->eip);
|
||||||
|
cpuerror("#PGF Page fault", dump, false);
|
||||||
|
}
|
||||||
|
restdebugcpu();
|
||||||
|
iret();
|
||||||
|
}
|
||||||
|
|
||||||
|
void exception15()
|
||||||
|
{
|
||||||
|
regs *dump;
|
||||||
|
exception_stack_noerror *caller;
|
||||||
|
u32 *oldesp;
|
||||||
|
savecpu_noerror(dump, caller, oldesp);
|
||||||
|
cpuerror("(reserved)", dump, false);
|
||||||
|
}
|
||||||
|
|
||||||
|
void exception16()
|
||||||
|
{
|
||||||
|
regs *dump;
|
||||||
|
exception_stack_noerror *caller;
|
||||||
|
u32 *oldesp;
|
||||||
|
savecpu_noerror(dump, caller, oldesp);
|
||||||
|
cpuerror("#MF Coprocessor error", dump, false);
|
||||||
|
}
|
||||||
|
|
||||||
|
void exception17()
|
||||||
|
{
|
||||||
|
regs *dump;
|
||||||
|
exception_stack_noerror *caller;
|
||||||
|
u32 *oldesp;
|
||||||
|
savecpu_noerror(dump, caller, oldesp);
|
||||||
|
cpuerror("#AC Alignment check", dump, false);
|
||||||
|
}
|
||||||
|
|
||||||
|
void exception18()
|
||||||
|
{
|
||||||
|
regs *dump;
|
||||||
|
exception_stack_noerror *caller;
|
||||||
|
u32 *oldesp;
|
||||||
|
savecpu_noerror(dump, caller, oldesp);
|
||||||
|
cpuerror("#MC Machine check", dump, false);
|
||||||
|
}
|
||||||
|
|
||||||
|
/******************************************************************************/
|
||||||
|
/* Les IRQ par défaut */
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq0(exception_stack_noerror *caller)
|
||||||
|
{ print("irq 0");
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq1(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 1");
|
||||||
|
while ((inb(0x64) & 1) == 0);
|
||||||
|
inb(0x60);
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq2(exception_stack_noerror *caller)
|
||||||
|
{ print("irq 2");
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq3(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 3");
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq4(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 4");
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq5(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 5");
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq6(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 6");
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq7(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 7");
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq8(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 8");
|
||||||
|
irqendslave();
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq9(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 9");
|
||||||
|
irqendslave();
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq10(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 10");
|
||||||
|
irqendslave();
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq11(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 11");
|
||||||
|
irqendslave();
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq12(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 12");
|
||||||
|
while ((inb(0x64) & 1) == 0);
|
||||||
|
inb(0x60);
|
||||||
|
irqendslave();
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq13(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 13");
|
||||||
|
irqendslave();
|
||||||
|
irqendmaster();
|
||||||
|
popad();
|
||||||
|
popf();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq14(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 14");
|
||||||
|
irqendslave();
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
|
|
||||||
|
__attribute__((interrupt)) void irq15(exception_stack_noerror *caller)
|
||||||
|
{
|
||||||
|
print("irq 15");
|
||||||
|
irqendslave();
|
||||||
|
irqendmaster();
|
||||||
|
}
|
||||||
514
lib/interrupts.c
514
lib/interrupts.c
|
|
@ -10,6 +10,7 @@
|
||||||
#include "system.h"
|
#include "system.h"
|
||||||
#include "debug.h"
|
#include "debug.h"
|
||||||
#include "process.h"
|
#include "process.h"
|
||||||
|
#include "handlers.h"
|
||||||
|
|
||||||
#define IDT_SIZE 256 /* nombre de descripteurs */
|
#define IDT_SIZE 256 /* nombre de descripteurs */
|
||||||
|
|
||||||
|
|
@ -142,519 +143,6 @@ void putidt(u32 offset, u16 select, u16 type, u16 index)
|
||||||
idt[index] = temp;
|
idt[index] = temp;
|
||||||
}
|
}
|
||||||
|
|
||||||
/******************************************************************************/
|
|
||||||
/* Affiche une erreur CPU et fige l'ordinateur */
|
|
||||||
|
|
||||||
void cpuerror(const u8 * src, const regs * stack)
|
|
||||||
{
|
|
||||||
printf("\033[31m*** ERREUR CPU : %s *** \r\n", src);
|
|
||||||
if (stack != NULL)
|
|
||||||
show_cpu(stack);
|
|
||||||
print("<Appuyer une touche pour continuer>\033[0m\r\n");
|
|
||||||
sti();
|
|
||||||
waitascii();
|
|
||||||
initselectors(retry_address);
|
|
||||||
/*while (true) {
|
|
||||||
nop();
|
|
||||||
} */
|
|
||||||
}
|
|
||||||
|
|
||||||
/******************************************************************************/
|
|
||||||
/* Déclenché lors de l'appel d'une interruption */
|
|
||||||
|
|
||||||
void interruption()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
print("Appel d'une interruption\r\n");
|
|
||||||
restdebugcpu();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
/******************************************************************************/
|
|
||||||
/* Les expections */
|
|
||||||
|
|
||||||
void exception0()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#DE Divide error", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception1()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
changevc(6);
|
|
||||||
clearscreen();
|
|
||||||
show_lightcpu(dump);
|
|
||||||
printf("\r\n\033[7m[P]\033[0m PAS A PAS \033[7m D \033[0m PAS A PAS DETAILLE \033[7m C \033[0m CONTINUER \033[7m S \033[0m STOPPER \033[7m V \033[0m VOIR \033[7m S \033[0m SCINDER");
|
|
||||||
sti();
|
|
||||||
u8 ascii = waitascii();
|
|
||||||
cli();
|
|
||||||
if (ascii == 'P' || ascii == 'p')
|
|
||||||
setdebugreg(0,
|
|
||||||
caller->eip + disasm(caller->eip, NULL, false),
|
|
||||||
DBG_EXEC);
|
|
||||||
else if (ascii == 'D' || ascii == 'd')
|
|
||||||
setdebugreg(0, 0, DBG_CLEAR);
|
|
||||||
else if (ascii == 'C' || ascii == 'c')
|
|
||||||
setdebugreg(0, 0, DBG_CLEAR);
|
|
||||||
else if (ascii == 'S' || ascii == 's')
|
|
||||||
{
|
|
||||||
changevc(0);
|
|
||||||
sti();
|
|
||||||
initselectors(retry_address);
|
|
||||||
}
|
|
||||||
changevc(0);
|
|
||||||
restdebugcpu();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception2()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("NMI Non-maskable hardware interrupt", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception3()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#BP INT3 instruction", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception4()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#OF INTO instruction detected overflow", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception5()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#BR BOUND instruction detected overrange", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception6()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#UD Invalid instruction opcode", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception7()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#NM No coprocessor", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception8()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#DF Double fault", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception9()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("Coprocessor segment overrun", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception10()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#TS Invalid task state segment (TSS)", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception11()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#NP Segment not present", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception12()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#SS Stack fault", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception13()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu(dump, caller, oldesp);
|
|
||||||
cpuerror("#GP General protection fault (GPF)", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
static u8 ex14_errors1[] =
|
|
||||||
"Supervisory process tried to read a non-present page entry";
|
|
||||||
static u8 ex14_errors2[] =
|
|
||||||
"Supervisory process tried to read a page and caused a protection fault";
|
|
||||||
static u8 ex14_errors3[] =
|
|
||||||
"Supervisory process tried to write to a non-present page entry";
|
|
||||||
static u8 ex14_errors4[] =
|
|
||||||
"Supervisory process tried to write a page and caused a protection fault";
|
|
||||||
static u8 ex14_errors5[] =
|
|
||||||
"User process tried to read a non-present page entry";
|
|
||||||
static u8 ex14_errors6[] =
|
|
||||||
"User process tried to read a page and caused a protection fault";
|
|
||||||
static u8 ex14_errors7[] =
|
|
||||||
"User process tried to write to a non-present page entry";
|
|
||||||
static u8 ex14_errors8[] =
|
|
||||||
"User process tried to write a page and caused a protection fault";
|
|
||||||
static u8 *ex14_errors[] =
|
|
||||||
{ &ex14_errors1, &ex14_errors2, &ex14_errors3, &ex14_errors4,
|
|
||||||
&ex14_errors5, &ex14_errors6, &ex14_errors7, &ex14_errors8
|
|
||||||
};
|
|
||||||
|
|
||||||
void exception14()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
getEBP(oldesp);
|
|
||||||
dumpcpu();
|
|
||||||
getESP(dump);
|
|
||||||
caller = (exception_stack *) (oldesp + 1);
|
|
||||||
dump->ebp = *oldesp;
|
|
||||||
dump->eip = caller->eip;
|
|
||||||
dump->cs = caller->cs;
|
|
||||||
if (caller->cs == SEL_KERNEL_CODE)
|
|
||||||
dump->esp = (u32) oldesp + sizeof(exception_stack);
|
|
||||||
else
|
|
||||||
{
|
|
||||||
dump->esp = (u32) ((exception_stack_user *) caller)->esp;
|
|
||||||
dump->ss = (u32) ((exception_stack_user *) caller)->ss;
|
|
||||||
}
|
|
||||||
if (dump->cr2 >= USER_CODE && dump->cr2 < USER_STACK)
|
|
||||||
{
|
|
||||||
virtual_range_new(getcurrentprocess()->pdd,
|
|
||||||
(u8 *) (dump->cr2 & 0xFFFFF000),
|
|
||||||
PAGESIZE, PAGE_ALL);
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
printf("Page fault - %s at adress %Y cs:eip - %Y:%Y\r\n",
|
|
||||||
ex14_errors[caller->error_code & 0xF], dump->cr2,
|
|
||||||
dump->cs, dump->eip);
|
|
||||||
cpuerror("#PGF Page fault", dump);
|
|
||||||
}
|
|
||||||
restdebugcpu();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception15()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("(reserved)", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception16()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#MF Coprocessor error", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception17()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#AC Alignment check", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
void exception18()
|
|
||||||
{
|
|
||||||
regs *dump;
|
|
||||||
exception_stack_noerror *caller;
|
|
||||||
u32 *oldesp;
|
|
||||||
savecpu_noerror(dump, caller, oldesp);
|
|
||||||
cpuerror("#MC Machine check", dump);
|
|
||||||
}
|
|
||||||
|
|
||||||
/******************************************************************************/
|
|
||||||
/* Les IRQ par défaut */
|
|
||||||
|
|
||||||
void irq0()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 0");
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq1()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 1");
|
|
||||||
while ((inb(0x64) & 1) == 0);
|
|
||||||
inb(0x60);
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq2()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 2");
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq3()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 3");
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq4()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 4");
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq5()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 5");
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq6()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 6");
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq7()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 7");
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq8()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 8");
|
|
||||||
irqendslave();
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq9()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 9");
|
|
||||||
irqendslave();
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq10()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 10");
|
|
||||||
irqendslave();
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq11()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 11");
|
|
||||||
irqendslave();
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq12()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 12");
|
|
||||||
while ((inb(0x64) & 1) == 0);
|
|
||||||
inb(0x60);
|
|
||||||
irqendslave();
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq13()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 13");
|
|
||||||
irqendslave();
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq14()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
print("irq 14");
|
|
||||||
irqendslave();
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
void irq15()
|
|
||||||
{
|
|
||||||
cli();
|
|
||||||
print("irq 15");
|
|
||||||
irqendslave();
|
|
||||||
irqendmaster();
|
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
|
||||||
|
|
||||||
/******************************************************************************/
|
/******************************************************************************/
|
||||||
/* Initialise une IDT */
|
/* Initialise une IDT */
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -361,11 +361,8 @@ unsigned convert(u32 keypressed)
|
||||||
/******************************************************************************/
|
/******************************************************************************/
|
||||||
/* Handler d'interruption IRQ 1 pour le clavier */
|
/* Handler d'interruption IRQ 1 pour le clavier */
|
||||||
|
|
||||||
void keyboard(void)
|
__attribute__((interrupt)) void keyboard_handler(exception_stack_noerror *caller)
|
||||||
{
|
{
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
u8 scancode, ascii;
|
u8 scancode, ascii;
|
||||||
cli();
|
cli();
|
||||||
while ((inb(0x64) & 1) == 0);
|
while ((inb(0x64) & 1) == 0);
|
||||||
|
|
@ -379,11 +376,6 @@ void keyboard(void)
|
||||||
bufferascii[ptrascii] = ascii;
|
bufferascii[ptrascii] = ascii;
|
||||||
}
|
}
|
||||||
irqendmaster();
|
irqendmaster();
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/******************************************************************************/
|
/******************************************************************************/
|
||||||
|
|
|
||||||
13
lib/makefile
13
lib/makefile
|
|
@ -1,4 +1,4 @@
|
||||||
CC=gcc -O0 -g -nostdinc -ffreestanding -fno-builtin -Wall -w -m32 -F elf_i386 -fno-pie -no-pie -I ../include
|
CC=gcc -O0 -g -nostdinc -ffreestanding -fno-builtin -Wall -w -m32 -F elf_i386 -fno-pie -no-pie -I ../include -c
|
||||||
LINK=ld -m elf_i386 -r -o
|
LINK=ld -m elf_i386 -r -o
|
||||||
SRCS= $(wildcard *.c)
|
SRCS= $(wildcard *.c)
|
||||||
OBJS= $(SRCS:.c=.o)
|
OBJS= $(SRCS:.c=.o)
|
||||||
|
|
@ -15,6 +15,17 @@ togit: clean indent
|
||||||
libs.o:$(OBJS)
|
libs.o:$(OBJS)
|
||||||
$(LINK) libs.o $(OBJS)
|
$(LINK) libs.o $(OBJS)
|
||||||
|
|
||||||
|
handlers.o:handlers.c
|
||||||
|
$(CC) -mgeneral-regs-only $^
|
||||||
|
|
||||||
|
keyboard.o:keyboard.c
|
||||||
|
$(CC) -mgeneral-regs-only $^
|
||||||
|
|
||||||
|
mouse.o:mouse.c
|
||||||
|
$(CC) -mgeneral-regs-only $^
|
||||||
|
|
||||||
|
syscall.o:syscall.c
|
||||||
|
$(CC) -fomit-frame-pointer $^
|
||||||
.o: .c
|
.o: .c
|
||||||
$(CC) $^
|
$(CC) $^
|
||||||
|
|
||||||
|
|
|
||||||
10
lib/mouse.c
10
lib/mouse.c
|
|
@ -64,11 +64,8 @@ void outmsecmd(u8 command)
|
||||||
/******************************************************************************/
|
/******************************************************************************/
|
||||||
/* Handler d'interruption de la souris IRQ 12 */
|
/* Handler d'interruption de la souris IRQ 12 */
|
||||||
|
|
||||||
void mouse(void)
|
__attribute__((interrupt)) void mouse_handler(exception_stack_noerror *caller)
|
||||||
{
|
{
|
||||||
cli();
|
|
||||||
pushf();
|
|
||||||
pushad();
|
|
||||||
u8 mbyte = inb(0x60);
|
u8 mbyte = inb(0x60);
|
||||||
s8 changex, changey;
|
s8 changex, changey;
|
||||||
|
|
||||||
|
|
@ -145,11 +142,6 @@ void mouse(void)
|
||||||
endofint:
|
endofint:
|
||||||
irqendmaster();
|
irqendmaster();
|
||||||
irqendslave();
|
irqendslave();
|
||||||
popad();
|
|
||||||
popf();
|
|
||||||
sti();
|
|
||||||
leave();
|
|
||||||
iret();
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/*******************************************************************************/
|
/*******************************************************************************/
|
||||||
|
|
|
||||||
|
|
@ -15,9 +15,19 @@
|
||||||
* %eax System call number.
|
* %eax System call number.
|
||||||
* %ebx Arg1
|
* %ebx Arg1
|
||||||
* %esi Arg2
|
* %esi Arg2
|
||||||
* %edi Arg3
|
* %edi Arg3*/
|
||||||
/*******************************************************************************/
|
|
||||||
|
|
||||||
|
/*******************************************************************************/
|
||||||
|
/* Initialise les appels système par SYSENTER/SYSEXIT */
|
||||||
|
|
||||||
|
void initsyscall(void)
|
||||||
|
{
|
||||||
|
wrmsr(0x174, SEL_KERNEL_CODE, 0x0);
|
||||||
|
wrmsr(0x175, 0x60000, 0x0);
|
||||||
|
wrmsr(0x176, &sysenter_handler, 0x0);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*******************************************************************************/
|
||||||
/* Fonction permettant de tester le fonctionnement de SYSENTER */
|
/* Fonction permettant de tester le fonctionnement de SYSENTER */
|
||||||
/* SYSCALL
|
/* SYSCALL
|
||||||
{
|
{
|
||||||
|
|
@ -43,26 +53,16 @@ u32 testapi(u32 arg1, u32 arg2, u32 arg3, regs* dump)
|
||||||
}
|
}
|
||||||
|
|
||||||
/*******************************************************************************/
|
/*******************************************************************************/
|
||||||
|
|
||||||
/* Initialise les appels système par SYSENTER/SYSEXIT */
|
|
||||||
|
|
||||||
void initsyscall(void)
|
|
||||||
{
|
|
||||||
wrmsr(0x174, SEL_KERNEL_CODE, 0x0);
|
|
||||||
wrmsr(0x175, 0x60000, 0x0);
|
|
||||||
wrmsr(0x176, &sysenter_handler + 6, 0x0);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*******************************************************************************/
|
|
||||||
|
|
||||||
/* Entrée pour les appels système SYSENTER */
|
/* Entrée pour les appels système SYSENTER */
|
||||||
|
|
||||||
void sysenter_handler(void)
|
__attribute__ ((noreturn)) void sysenter_handler(void)
|
||||||
{
|
{
|
||||||
cli();
|
cli();
|
||||||
regs *dump;
|
regs *dump;
|
||||||
dumpcpu();
|
dumpcpu();
|
||||||
getESP(dump);
|
getESP(dump);
|
||||||
|
dump->cs=SEL_USER_CODE;
|
||||||
|
dump->eip=dump->edx;
|
||||||
sti();
|
sti();
|
||||||
switch (dump->eax)
|
switch (dump->eax)
|
||||||
{
|
{
|
||||||
|
|
@ -83,7 +83,7 @@ void sysenter_handler(void)
|
||||||
break;
|
break;
|
||||||
|
|
||||||
default:
|
default:
|
||||||
printf("Appel syscall vers fonction inexistante en %Y:%Y\r\n", dump->cs, dump->eip);
|
printf("Appel syscall vers fonction inexistante en %Y:%Y", dump->cs, dump->eip);
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
restdebugcpu();
|
restdebugcpu();
|
||||||
|
|
@ -92,4 +92,3 @@ void sysenter_handler(void)
|
||||||
|
|
||||||
/*******************************************************************************/
|
/*******************************************************************************/
|
||||||
|
|
||||||
|
|
||||||
|
|
|
||||||
2
makefile
2
makefile
|
|
@ -22,7 +22,7 @@ harddisk: final/harddisk.img.final
|
||||||
uefi: final/harddiskuefi.img.final
|
uefi: final/harddiskuefi.img.final
|
||||||
|
|
||||||
install:
|
install:
|
||||||
(sudo apt-get install nasm gcc qemu fusefat fuseext2 cgdb ovmf bsdmainutils tar bsdmainutils indent binutils bochs bochs-x bochsbios dos2unix)
|
(sudo apt-get install gcc qemu fusefat fuseext2 cgdb ovmf bsdmainutils tar bsdmainutils indent binutils bochs bochs-x bochsbios dos2unix)
|
||||||
|
|
||||||
togit:
|
togit:
|
||||||
make -C system togit
|
make -C system togit
|
||||||
|
|
|
||||||
|
|
@ -146,9 +146,13 @@ for lib in alllibs:
|
||||||
if numargs>0:
|
if numargs>0:
|
||||||
textargs=textargs+","
|
textargs=textargs+","
|
||||||
textargs=textargs+"(u32) "+syscall['ARGS'][i]['NAME']
|
textargs=textargs+"(u32) "+syscall['ARGS'][i]['NAME']
|
||||||
|
if syscall['RETURN']!='void':
|
||||||
|
textargs="return "+textargs+");"
|
||||||
|
else:
|
||||||
|
textargs=textargs+");\n return;"
|
||||||
text=text+getfunction(syscall)+"""
|
text=text+getfunction(syscall)+"""
|
||||||
{
|
{
|
||||||
"""+textargs+""");
|
"""+textargs+"""
|
||||||
}
|
}
|
||||||
|
|
||||||
"""
|
"""
|
||||||
|
|
|
||||||
|
|
@ -8,22 +8,23 @@
|
||||||
|
|
||||||
u32 getticks(void)
|
u32 getticks(void)
|
||||||
{
|
{
|
||||||
syscall0(4);
|
return syscall0(4);
|
||||||
}
|
}
|
||||||
|
|
||||||
void exit(u32 resultcode)
|
void exit(u32 resultcode)
|
||||||
{
|
{
|
||||||
syscall1(5,(u32) resultcode);
|
syscall1(5,(u32) resultcode);
|
||||||
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
u8 waitkey(void)
|
u8 waitkey(void)
|
||||||
{
|
{
|
||||||
syscall0(1);
|
return syscall0(1);
|
||||||
}
|
}
|
||||||
|
|
||||||
u32 testapi(u32 arg1, u32 arg2, u32 arg3)
|
u32 testapi(u32 arg1, u32 arg2, u32 arg3)
|
||||||
{
|
{
|
||||||
syscall3(0,(u32) arg1,(u32) arg2,(u32) arg3);
|
return syscall3(0,(u32) arg1,(u32) arg2,(u32) arg3);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -8,7 +8,7 @@
|
||||||
|
|
||||||
u32 print(u8* string)
|
u32 print(u8* string)
|
||||||
{
|
{
|
||||||
syscall1(2,(u32) string);
|
return syscall1(2,(u32) string);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -1,5 +1,5 @@
|
||||||
GCC=gcc -O0 -g -nostdinc -ffreestanding -fno-builtin -Wall -w -I ../include -m32 -fno-pie -no-pie -c -o
|
GCC=gcc -O0 -g -nostdinc -ffreestanding -fno-builtin -Wall -w -I ../include -m32 -fno-pie -no-pie -c -o
|
||||||
ASM=nasm -f elf -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 -T linker.lds -n -o
|
||||||
CONVERT=dos2unix
|
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
|
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
|
||||||
|
|
@ -18,7 +18,7 @@ system.o:
|
||||||
$(GCC) system.o system.c
|
$(GCC) system.o system.c
|
||||||
|
|
||||||
multiboot.o:
|
multiboot.o:
|
||||||
$(ASM) multiboot.o multiboot.asm -dVESA=$(VESA)
|
$(ASM) multiboot.S -DVESA=$(VESA)
|
||||||
|
|
||||||
clean:
|
clean:
|
||||||
$(REMOVE) *.o
|
$(REMOVE) *.o
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,88 @@
|
||||||
|
/*******************************************************************************/
|
||||||
|
/* 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
|
||||||
|
|
@ -1,58 +0,0 @@
|
||||||
;/*******************************************************************************/
|
|
||||||
;/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
|
|
||||||
;/* */
|
|
||||||
[BITS 32]
|
|
||||||
|
|
||||||
SECTION .multiboot
|
|
||||||
|
|
||||||
%define MULTIBOOT_TAG_ALIGN 8
|
|
||||||
%define MULTIBOOT2_HEADER_MAGIC 0xe85250d6
|
|
||||||
%define MULTIBOOT_ARCHITECTURE_I386 0
|
|
||||||
|
|
||||||
%define MULTIBOOT_HEADER_TAG_OPTIONAL 1
|
|
||||||
|
|
||||||
%define MULTIBOOT_HEADER_TAG_CONSOLE_FLAGS 4
|
|
||||||
|
|
||||||
%define MULTIBOOT_HEADER_TAG_FRAMEBUFFER 5
|
|
||||||
|
|
||||||
%define MULTIBOOT_HEADER_TAG_END 0
|
|
||||||
|
|
||||||
%define MULTIBOOT_CONSOLE_FLAGS_EGA_TEXT_SUPPORTED 2
|
|
||||||
|
|
||||||
%defstr vesa VESA
|
|
||||||
|
|
||||||
multiboot_header:
|
|
||||||
align MULTIBOOT_TAG_ALIGN
|
|
||||||
dd MULTIBOOT2_HEADER_MAGIC ; magic
|
|
||||||
dd MULTIBOOT_ARCHITECTURE_I386 ; architecture
|
|
||||||
dd multiboot_header_end - multiboot_header
|
|
||||||
dd -(MULTIBOOT2_HEADER_MAGIC + MULTIBOOT_ARCHITECTURE_I386 + (multiboot_header_end - multiboot_header))
|
|
||||||
align MULTIBOOT_TAG_ALIGN
|
|
||||||
%if vesa = "no"
|
|
||||||
%warning "Avec la console VGA/EGA."
|
|
||||||
%else
|
|
||||||
framebuffer_tag_start:
|
|
||||||
%warning "Avec le FRAMEBUFFER VESA."
|
|
||||||
dw MULTIBOOT_HEADER_TAG_FRAMEBUFFER ; type
|
|
||||||
dw MULTIBOOT_HEADER_TAG_OPTIONAL ; flags
|
|
||||||
dd framebuffer_tag_end - framebuffer_tag_start
|
|
||||||
dd 1024 ; width
|
|
||||||
dd 768 ; height
|
|
||||||
dd 32 ; depth
|
|
||||||
align MULTIBOOT_TAG_ALIGN
|
|
||||||
framebuffer_tag_end:
|
|
||||||
%endif
|
|
||||||
dw MULTIBOOT_HEADER_TAG_END
|
|
||||||
dw 0
|
|
||||||
dd 8
|
|
||||||
multiboot_header_end:
|
|
||||||
SECTION .text
|
|
||||||
|
|
||||||
global start
|
|
||||||
extern main
|
|
||||||
|
|
||||||
start:
|
|
||||||
push ebx
|
|
||||||
push eax
|
|
||||||
call main
|
|
||||||
hlt
|
|
||||||
|
|
@ -85,13 +85,13 @@ int main(u32 magic, u32 addr)
|
||||||
ok();
|
ok();
|
||||||
|
|
||||||
print(" -Installation du pilote clavier (IRQ 1)");
|
print(" -Installation du pilote clavier (IRQ 1)");
|
||||||
setidt((u32) keyboard, SEL_KERNEL_CODE,
|
setidt((u32) keyboard_handler, SEL_KERNEL_CODE,
|
||||||
ENTRY_PRESENT | ENTRY_RING0 | INTGATE, 33);
|
ENTRY_PRESENT | ENTRY_RING0 | INTGATE, 33);
|
||||||
enableirq(1);
|
enableirq(1);
|
||||||
ok();
|
ok();
|
||||||
|
|
||||||
print(" -Installation du pilote souris (IRQ12+IRQ2)");
|
print(" -Installation du pilote souris (IRQ12+IRQ2)");
|
||||||
setidt((u32) mouse, SEL_KERNEL_CODE,
|
setidt((u32) mouse_handler, SEL_KERNEL_CODE,
|
||||||
ENTRY_PRESENT | ENTRY_RING0 | INTGATE, 100);
|
ENTRY_PRESENT | ENTRY_RING0 | INTGATE, 100);
|
||||||
enableirq(2);
|
enableirq(2);
|
||||||
enableirq(12);
|
enableirq(12);
|
||||||
|
|
|
||||||
|
|
@ -15,9 +15,20 @@
|
||||||
* %eax System call number.
|
* %eax System call number.
|
||||||
* %ebx Arg1
|
* %ebx Arg1
|
||||||
* %esi Arg2
|
* %esi Arg2
|
||||||
* %edi Arg3
|
* %edi Arg3*/
|
||||||
/*******************************************************************************/
|
|
||||||
|
|
||||||
|
/*******************************************************************************/
|
||||||
|
/* Initialise les appels système par SYSENTER/SYSEXIT */
|
||||||
|
|
||||||
|
void initsyscall(void)
|
||||||
|
{
|
||||||
|
wrmsr(0x174, SEL_KERNEL_CODE, 0x0);
|
||||||
|
wrmsr(0x175, 0x60000, 0x0);
|
||||||
|
wrmsr(0x176, &sysenter_handler, 0x0);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*******************************************************************************/
|
||||||
/* Fonction permettant de tester le fonctionnement de SYSENTER */
|
/* Fonction permettant de tester le fonctionnement de SYSENTER */
|
||||||
/* SYSCALL
|
/* SYSCALL
|
||||||
{
|
{
|
||||||
|
|
@ -43,26 +54,16 @@ u32 testapi(u32 arg1, u32 arg2, u32 arg3, regs* dump)
|
||||||
}
|
}
|
||||||
|
|
||||||
/*******************************************************************************/
|
/*******************************************************************************/
|
||||||
|
|
||||||
/* Initialise les appels système par SYSENTER/SYSEXIT */
|
|
||||||
|
|
||||||
void initsyscall(void)
|
|
||||||
{
|
|
||||||
wrmsr(0x174, SEL_KERNEL_CODE, 0x0);
|
|
||||||
wrmsr(0x175, 0x60000, 0x0);
|
|
||||||
wrmsr(0x176, &sysenter_handler + 6, 0x0);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*******************************************************************************/
|
|
||||||
|
|
||||||
/* Entrée pour les appels système SYSENTER */
|
/* Entrée pour les appels système SYSENTER */
|
||||||
|
|
||||||
void sysenter_handler(void)
|
__attribute__ ((noreturn)) void sysenter_handler(void)
|
||||||
{
|
{
|
||||||
cli();
|
cli();
|
||||||
regs *dump;
|
regs *dump;
|
||||||
dumpcpu();
|
dumpcpu();
|
||||||
getESP(dump);
|
getESP(dump);
|
||||||
|
dump->cs=SEL_USER_CODE;
|
||||||
|
dump->eip=dump->edx;
|
||||||
sti();
|
sti();
|
||||||
switch (dump->eax)
|
switch (dump->eax)
|
||||||
{
|
{
|
||||||
|
|
@ -77,4 +78,3 @@ void sysenter_handler(void)
|
||||||
|
|
||||||
/*******************************************************************************/
|
/*******************************************************************************/
|
||||||
|
|
||||||
|
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue