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

feat: debut implémentation de sysenter / sysexit et test depuis shell.c

This commit is contained in:
Nicolas Hordé 2018-12-04 00:05:55 +01:00
parent 4ce5c7333c
commit e87aedb02e
3 changed files with 86 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/shell.h
View File

@ -30,3 +30,4 @@ int logo();
int detectpci();
int mem();
int testmem();
int testsyscall();

74
include/syscall.h
View File

@ -1,5 +1,79 @@
/*******************************************************************************/
/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
/* */
#define sysexit \
asm volatile ("sysexit"::"c");
static inline long syscall(long syscall) {
long ret;
asm volatile (
"mov %%esp,%%ecx;\
mov $1f,%%edx;\
sysenter;\
1:" : "=a" (ret) : "a" (syscall): "ecx","edx","memory");
return ret;
}
static inline long syscall1(long syscall, long arg1) {
long ret;
asm volatile (
"mov %%esp,%%ecx;\
mov $1f,%%edx;\
sysenter;\
1:" : "=a" (ret) : "a" (syscall), "b" (arg1) : "ecx","edx","memory");
return ret;
}
static inline long syscall2(long syscall, long arg1, long arg2) {
long ret;
asm volatile (
"mov %%esp,%%ecx;\
mov $1f,%%edx;\
sysenter;\
1:" : "=a" (ret) : "a" (syscall), "b" (arg1), "S" (arg2) : "ecx","edx","memory");
return ret;
}
static inline long syscall3(long syscall, long arg1, long arg2, long arg3) {
long ret;
asm volatile (
"mov %%esp,%%ecx;\
mov $1f,%%edx;\
sysenter;\
1:" : "=a" (ret) : "a" (syscall), "b" (arg1), "S" (arg2), "D" (arg3) : "ecx","edx","memory");
return ret;
}
/*static inline long syscall4(long syscall, long arg1, long arg2, long arg3, long arg4) {
long ret;
asm volatile ("mov %%esp,%%ecx;
"mov $1f,%%edx;
"sysenter;
1:" : "=a" (ret) : "a" (syscall), "b" (arg1), "c" (arg2),
"d" (arg3), "S" (arg4) : “memory”);
return ret;
}
static inline long syscall5(long syscall, long arg1, long arg2, long arg3, long arg4, long arg5) {
long ret;
asm volatile ("mov %%esp,%%ecx;
"mov $1f,%%edx;
"sysenter;
1:" : "=a" (ret) : "a" (syscall), "b" (arg1), "c" (arg2),
"d" (arg3), "S" (arg4), "D" (arg5) : “memory”);
return ret;
}
static inline long syscall6(long syscall, long arg1, long arg2, long arg3, long arg4, long arg5, long arg6) {
long ret;
asm volatile ("mov %%esp,%%ecx;
"mov $1f,%%edx;
"sysenter;
1:" : "=a" (ret) : "a" (syscall), "b" (arg1), "c" (arg2),
"d" (arg3), "S" (arg4), "D", (arg5), "d" (arg6) : “memory”);
return ret;
}*/
void initsyscall(void);
void sysenter_handler(void);

12
lib/shell.c
View File

@ -18,6 +18,7 @@
#include "3D/sphere.c"
#include "3D/man.c"
#include "memory.h"
#include "syscall.h"
static command commands[] = {
{"reboot" , "", &rebootnow},
@ -42,7 +43,7 @@ static command commands[] = {
{"detectpci" , "", &detectpci},
{"mem" , "", &mem},
{"testmem" , "", &testmem},
{"testsyscall" , "", &testsyscall},
};
/*******************************************************************************/
@ -82,6 +83,15 @@ int test(void)
return;
}
/*******************************************************************************/
/* Test l'usage de syscall */
int testsyscall()
{
print("*** avant appel");
syscall2(0x0, 0x1980, 0x2505);
print("*** apres appel");
}
/*******************************************************************************/
/* Test la memoire */
int testmem()