aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/process_64.c
diff options
context:
space:
mode:
authorDavid Woodhouse <David.Woodhouse@intel.com>2010-02-26 14:04:15 -0500
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-02-26 14:06:24 -0500
commita7790532f5b7358c33a6b1834dc2b318de209f31 (patch)
tree0ceb9e24b3f54cb5c8453fb5a218e2a94a0f1cce /arch/x86/kernel/process_64.c
parent2764fb4244cc1bc08df3667924ca4a972e90ac70 (diff)
parent60b341b778cc2929df16c0a504c91621b3c6a4ad (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
The SmartMedia FTL code depends on new kfifo bits from 2.6.33
Diffstat (limited to 'arch/x86/kernel/process_64.c')
-rw-r--r--arch/x86/kernel/process_64.c65
1 files changed, 24 insertions, 41 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index e5ab0cd0ef36..126f0b493d04 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -57,8 +57,6 @@ asmlinkage extern void ret_from_fork(void);
57DEFINE_PER_CPU(unsigned long, old_rsp); 57DEFINE_PER_CPU(unsigned long, old_rsp);
58static DEFINE_PER_CPU(unsigned char, is_idle); 58static DEFINE_PER_CPU(unsigned char, is_idle);
59 59
60unsigned long kernel_thread_flags = CLONE_VM | CLONE_UNTRACED;
61
62static ATOMIC_NOTIFIER_HEAD(idle_notifier); 60static ATOMIC_NOTIFIER_HEAD(idle_notifier);
63 61
64void idle_notifier_register(struct notifier_block *n) 62void idle_notifier_register(struct notifier_block *n)
@@ -163,19 +161,19 @@ void __show_regs(struct pt_regs *regs, int all)
163 unsigned int ds, cs, es; 161 unsigned int ds, cs, es;
164 162
165 show_regs_common(); 163 show_regs_common();
166 printk(KERN_INFO "RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip); 164 printk(KERN_DEFAULT "RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip);
167 printk_address(regs->ip, 1); 165 printk_address(regs->ip, 1);
168 printk(KERN_INFO "RSP: %04lx:%016lx EFLAGS: %08lx\n", regs->ss, 166 printk(KERN_DEFAULT "RSP: %04lx:%016lx EFLAGS: %08lx\n", regs->ss,
169 regs->sp, regs->flags); 167 regs->sp, regs->flags);
170 printk(KERN_INFO "RAX: %016lx RBX: %016lx RCX: %016lx\n", 168 printk(KERN_DEFAULT "RAX: %016lx RBX: %016lx RCX: %016lx\n",
171 regs->ax, regs->bx, regs->cx); 169 regs->ax, regs->bx, regs->cx);
172 printk(KERN_INFO "RDX: %016lx RSI: %016lx RDI: %016lx\n", 170 printk(KERN_DEFAULT "RDX: %016lx RSI: %016lx RDI: %016lx\n",
173 regs->dx, regs->si, regs->di); 171 regs->dx, regs->si, regs->di);
174 printk(KERN_INFO "RBP: %016lx R08: %016lx R09: %016lx\n", 172 printk(KERN_DEFAULT "RBP: %016lx R08: %016lx R09: %016lx\n",
175 regs->bp, regs->r8, regs->r9); 173 regs->bp, regs->r8, regs->r9);
176 printk(KERN_INFO "R10: %016lx R11: %016lx R12: %016lx\n", 174 printk(KERN_DEFAULT "R10: %016lx R11: %016lx R12: %016lx\n",
177 regs->r10, regs->r11, regs->r12); 175 regs->r10, regs->r11, regs->r12);
178 printk(KERN_INFO "R13: %016lx R14: %016lx R15: %016lx\n", 176 printk(KERN_DEFAULT "R13: %016lx R14: %016lx R15: %016lx\n",
179 regs->r13, regs->r14, regs->r15); 177 regs->r13, regs->r14, regs->r15);
180 178
181 asm("movl %%ds,%0" : "=r" (ds)); 179 asm("movl %%ds,%0" : "=r" (ds));
@@ -196,21 +194,21 @@ void __show_regs(struct pt_regs *regs, int all)
196 cr3 = read_cr3(); 194 cr3 = read_cr3();
197 cr4 = read_cr4(); 195 cr4 = read_cr4();
198 196
199 printk(KERN_INFO "FS: %016lx(%04x) GS:%016lx(%04x) knlGS:%016lx\n", 197 printk(KERN_DEFAULT "FS: %016lx(%04x) GS:%016lx(%04x) knlGS:%016lx\n",
200 fs, fsindex, gs, gsindex, shadowgs); 198 fs, fsindex, gs, gsindex, shadowgs);
201 printk(KERN_INFO "CS: %04x DS: %04x ES: %04x CR0: %016lx\n", cs, ds, 199 printk(KERN_DEFAULT "CS: %04x DS: %04x ES: %04x CR0: %016lx\n", cs, ds,
202 es, cr0); 200 es, cr0);
203 printk(KERN_INFO "CR2: %016lx CR3: %016lx CR4: %016lx\n", cr2, cr3, 201 printk(KERN_DEFAULT "CR2: %016lx CR3: %016lx CR4: %016lx\n", cr2, cr3,
204 cr4); 202 cr4);
205 203
206 get_debugreg(d0, 0); 204 get_debugreg(d0, 0);
207 get_debugreg(d1, 1); 205 get_debugreg(d1, 1);
208 get_debugreg(d2, 2); 206 get_debugreg(d2, 2);
209 printk(KERN_INFO "DR0: %016lx DR1: %016lx DR2: %016lx\n", d0, d1, d2); 207 printk(KERN_DEFAULT "DR0: %016lx DR1: %016lx DR2: %016lx\n", d0, d1, d2);
210 get_debugreg(d3, 3); 208 get_debugreg(d3, 3);
211 get_debugreg(d6, 6); 209 get_debugreg(d6, 6);
212 get_debugreg(d7, 7); 210 get_debugreg(d7, 7);
213 printk(KERN_INFO "DR3: %016lx DR6: %016lx DR7: %016lx\n", d3, d6, d7); 211 printk(KERN_DEFAULT "DR3: %016lx DR6: %016lx DR7: %016lx\n", d3, d6, d7);
214} 212}
215 213
216void show_regs(struct pt_regs *regs) 214void show_regs(struct pt_regs *regs)
@@ -273,8 +271,9 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
273 *childregs = *regs; 271 *childregs = *regs;
274 272
275 childregs->ax = 0; 273 childregs->ax = 0;
276 childregs->sp = sp; 274 if (user_mode(regs))
277 if (sp == ~0UL) 275 childregs->sp = sp;
276 else
278 childregs->sp = (unsigned long)childregs; 277 childregs->sp = (unsigned long)childregs;
279 278
280 p->thread.sp = (unsigned long) childregs; 279 p->thread.sp = (unsigned long) childregs;
@@ -508,25 +507,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
508 return prev_p; 507 return prev_p;
509} 508}
510 509
511/*
512 * sys_execve() executes a new program.
513 */
514asmlinkage
515long sys_execve(char __user *name, char __user * __user *argv,
516 char __user * __user *envp, struct pt_regs *regs)
517{
518 long error;
519 char *filename;
520
521 filename = getname(name);
522 error = PTR_ERR(filename);
523 if (IS_ERR(filename))
524 return error;
525 error = do_execve(filename, argv, envp, regs);
526 putname(filename);
527 return error;
528}
529
530void set_personality_64bit(void) 510void set_personality_64bit(void)
531{ 511{
532 /* inherit personality from parent */ 512 /* inherit personality from parent */
@@ -541,13 +521,16 @@ void set_personality_64bit(void)
541 current->personality &= ~READ_IMPLIES_EXEC; 521 current->personality &= ~READ_IMPLIES_EXEC;
542} 522}
543 523
544asmlinkage long 524void set_personality_ia32(void)
545sys_clone(unsigned long clone_flags, unsigned long newsp,
546 void __user *parent_tid, void __user *child_tid, struct pt_regs *regs)
547{ 525{
548 if (!newsp) 526 /* inherit personality from parent */
549 newsp = regs->sp; 527
550 return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid); 528 /* Make sure to be in 32bit mode */
529 set_thread_flag(TIF_IA32);
530 current->personality |= force_personality32;
531
532 /* Prepare the first "return" to user space */
533 current_thread_info()->status |= TS_COMPAT;
551} 534}
552 535
553unsigned long get_wchan(struct task_struct *p) 536unsigned long get_wchan(struct task_struct *p)