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sys/amd64/linux/linux_support.s
| Show First 20 Lines • Show All 120 Lines • ▼ Show 20 Lines | |||||
| END(futex_orl_nosmap) | END(futex_orl_nosmap) | ||||
| ENTRY(futex_orl_smap) | ENTRY(futex_orl_smap) | ||||
| movq PCPU(CURPCB),%r8 | movq PCPU(CURPCB),%r8 | ||||
| movq $futex_fault,PCB_ONFAULT(%r8) | movq $futex_fault,PCB_ONFAULT(%r8) | ||||
| movq $VM_MAXUSER_ADDRESS-4,%rax | movq $VM_MAXUSER_ADDRESS-4,%rax | ||||
| cmpq %rax,%rsi | cmpq %rax,%rsi | ||||
| ja futex_fault | ja futex_fault | ||||
| stac | |||||
| movl (%rsi),%eax | movl (%rsi),%eax | ||||
| 1: movl %eax,%ecx | 1: movl %eax,%ecx | ||||
| orl %edi,%ecx | orl %edi,%ecx | ||||
| stac | |||||
| #ifdef SMP | #ifdef SMP | ||||
| lock | lock | ||||
| #endif | #endif | ||||
| cmpxchgl %ecx,(%rsi) | cmpxchgl %ecx,(%rsi) | ||||
| clac | |||||
| jnz 1b | jnz 1b | ||||
| clac | |||||
| movl %eax,(%rdx) | movl %eax,(%rdx) | ||||
| xorl %eax,%eax | xorl %eax,%eax | ||||
| movq %rax,PCB_ONFAULT(%r8) | movq %rax,PCB_ONFAULT(%r8) | ||||
| ret | ret | ||||
| END(futex_orl_smap) | END(futex_orl_smap) | ||||
| ENTRY(futex_andl_nosmap) | ENTRY(futex_andl_nosmap) | ||||
| movq PCPU(CURPCB),%r8 | movq PCPU(CURPCB),%r8 | ||||
| Show All 16 Lines | |||||
| END(futex_andl_nosmap) | END(futex_andl_nosmap) | ||||
| ENTRY(futex_andl_smap) | ENTRY(futex_andl_smap) | ||||
| movq PCPU(CURPCB),%r8 | movq PCPU(CURPCB),%r8 | ||||
| movq $futex_fault,PCB_ONFAULT(%r8) | movq $futex_fault,PCB_ONFAULT(%r8) | ||||
| movq $VM_MAXUSER_ADDRESS-4,%rax | movq $VM_MAXUSER_ADDRESS-4,%rax | ||||
| cmpq %rax,%rsi | cmpq %rax,%rsi | ||||
| ja futex_fault | ja futex_fault | ||||
| stac | |||||
| movl (%rsi),%eax | movl (%rsi),%eax | ||||
| 1: movl %eax,%ecx | 1: movl %eax,%ecx | ||||
| andl %edi,%ecx | andl %edi,%ecx | ||||
| stac | |||||
| #ifdef SMP | #ifdef SMP | ||||
| lock | lock | ||||
| #endif | #endif | ||||
| cmpxchgl %ecx,(%rsi) | cmpxchgl %ecx,(%rsi) | ||||
| clac | |||||
| jnz 1b | jnz 1b | ||||
| clac | |||||
| movl %eax,(%rdx) | movl %eax,(%rdx) | ||||
| xorl %eax,%eax | xorl %eax,%eax | ||||
| movq %rax,PCB_ONFAULT(%r8) | movq %rax,PCB_ONFAULT(%r8) | ||||
| ret | ret | ||||
| END(futex_andl_smap) | END(futex_andl_smap) | ||||
| ENTRY(futex_xorl_nosmap) | ENTRY(futex_xorl_nosmap) | ||||
| movq PCPU(CURPCB),%r8 | movq PCPU(CURPCB),%r8 | ||||
| Show All 16 Lines | |||||
| END(futex_xorl_nosmap) | END(futex_xorl_nosmap) | ||||
| ENTRY(futex_xorl_smap) | ENTRY(futex_xorl_smap) | ||||
| movq PCPU(CURPCB),%r8 | movq PCPU(CURPCB),%r8 | ||||
| movq $futex_fault,PCB_ONFAULT(%r8) | movq $futex_fault,PCB_ONFAULT(%r8) | ||||
| movq $VM_MAXUSER_ADDRESS-4,%rax | movq $VM_MAXUSER_ADDRESS-4,%rax | ||||
| cmpq %rax,%rsi | cmpq %rax,%rsi | ||||
| ja futex_fault | ja futex_fault | ||||
| stac | |||||
| movl (%rsi),%eax | movl (%rsi),%eax | ||||
| 1: movl %eax,%ecx | 1: movl %eax,%ecx | ||||
| xorl %edi,%ecx | xorl %edi,%ecx | ||||
| stac | |||||
| #ifdef SMP | #ifdef SMP | ||||
| lock | lock | ||||
| #endif | #endif | ||||
| cmpxchgl %ecx,(%rsi) | cmpxchgl %ecx,(%rsi) | ||||
| clac | |||||
| jnz 1b | jnz 1b | ||||
| clac | |||||
| movl %eax,(%rdx) | movl %eax,(%rdx) | ||||
| xorl %eax,%eax | xorl %eax,%eax | ||||
| movq %rax,PCB_ONFAULT(%r8) | movq %rax,PCB_ONFAULT(%r8) | ||||
| ret | ret | ||||
| END(futex_xorl_smap) | END(futex_xorl_smap) | ||||