Imbus/xv6-riscv-kernel
1
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Start of an experiment to remove the use of gs for cpu local variables.

Browse source
This commit is contained in:
Frans Kaashoek 2017-01-31 17:47:16 -05:00
parent 59cdd6c63b
commit abf847a083
17 changed files with 145 additions and 123 deletions
Download patch file Download diff file Expand all files Collapse all files

15
exec.c
View file

@ -22,6 +22,7 @@ exec(char *path, char **argv)
if((ip = namei(path)) == 0){
end_op();
cprintf("exec: fail\n");
return -1;
}
ilock(ip);
@ -89,15 +90,15 @@ exec(char *path, char **argv)
for(last=s=path; *s; s++)
if(*s == '/')
last = s+1;
safestrcpy(proc->name, last, sizeof(proc->name));
safestrcpy(myproc()->name, last, sizeof(myproc()->name));
// Commit to the user image.
oldpgdir = proc->pgdir;
proc->pgdir = pgdir;
proc->sz = sz;
proc->tf->eip = elf.entry; // main
proc->tf->esp = sp;
switchuvm(proc);
oldpgdir = myproc()->pgdir;
myproc()->pgdir = pgdir;
myproc()->sz = sz;
myproc()->tf->eip = elf.entry; // main
myproc()->tf->esp = sp;
switchuvm(myproc());
freevm(oldpgdir);
return 0;