101 lines
1.3 KiB
C
101 lines
1.3 KiB
C
#include <u.h>
|
|
#include <lib9.h>
|
|
#define RET 0xc3
|
|
|
|
int success;
|
|
int cases;
|
|
|
|
void
|
|
handler(void *v, char *s)
|
|
{
|
|
success++;
|
|
exits("PASS");
|
|
}
|
|
|
|
void
|
|
callinsn(char *name, char *buf)
|
|
{
|
|
void (*f)(void);
|
|
if (notify(handler)){
|
|
fprint(2, "%r\n");
|
|
exits("notify fails");
|
|
}
|
|
|
|
|
|
f = (void *)buf;
|
|
f();
|
|
print("FAIL %s\n", name);
|
|
exits("FAIL");
|
|
}
|
|
|
|
void
|
|
writeptr(char *name, void *ptr)
|
|
{
|
|
if (notify(handler)){
|
|
fprint(2, "%r\n");
|
|
exits("notify fails");
|
|
}
|
|
|
|
*(uintptr_t*)ptr = 0xdeadbeef;
|
|
print("FAIL %s\n", name);
|
|
exits("FAIL");
|
|
}
|
|
|
|
void
|
|
main(void)
|
|
{
|
|
char *str = "hello world";
|
|
char stk[128];
|
|
char *mem;
|
|
|
|
switch(rfork(RFMEM|RFPROC)){
|
|
case -1:
|
|
sysfatal("rfork");
|
|
case 0:
|
|
stk[0] = RET;
|
|
callinsn("exec stack", stk);
|
|
default:
|
|
cases++;
|
|
waitpid();
|
|
}
|
|
|
|
switch(rfork(RFMEM|RFPROC)){
|
|
case -1:
|
|
sysfatal("rfork");
|
|
case 0:
|
|
mem = malloc(128);
|
|
mem[0] = RET;
|
|
callinsn("exec heap", mem);
|
|
default:
|
|
cases++;
|
|
waitpid();
|
|
}
|
|
|
|
switch(rfork(RFMEM|RFPROC)){
|
|
case -1:
|
|
sysfatal("rfork");
|
|
case 0:
|
|
writeptr("write code", (void*)&main);
|
|
default:
|
|
cases++;
|
|
waitpid();
|
|
}
|
|
|
|
switch(rfork(RFMEM|RFPROC)){
|
|
case -1:
|
|
sysfatal("rfork");
|
|
case 0:
|
|
writeptr("write rodata", (void*)str);
|
|
default:
|
|
cases++;
|
|
waitpid();
|
|
}
|
|
|
|
if(success == cases){
|
|
print("PASS\n");
|
|
exits("PASS");
|
|
}
|
|
print("FAIL\n");
|
|
exits("FAIL");
|
|
}
|