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30 | #include <cpu.h> |
30 | #include <cpu.h> |
31 | #include <proc/thread.h> |
31 | #include <proc/thread.h> |
32 | #include <arch.h> |
32 | #include <arch.h> |
33 | #include <arch/context.h> /* SP_DELTA */ |
33 | #include <arch/context.h> /* SP_DELTA */ |
34 | #include <arch/asm.h> |
34 | #include <arch/asm.h> |
- | 35 | #include <arch/debugger.h> |
|
35 | 36 | ||
36 | void before_thread_runs_arch(void) |
37 | void before_thread_runs_arch(void) |
37 | { |
38 | { |
38 | CPU->arch.tss->rsp0 = (__address) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA]; |
39 | CPU->arch.tss->rsp0 = (__address) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA]; |
39 | 40 | ||
40 | /* Syscall support - write thread address to hidden part of gs */ |
41 | /* Syscall support - write thread address to hidden part of gs */ |
41 | swapgs(); |
42 | swapgs(); |
42 | write_msr(AMD_MSR_GS, |
43 | write_msr(AMD_MSR_GS, |
43 | (__u64)&THREAD->kstack); |
44 | (__u64)&THREAD->kstack); |
44 | swapgs(); |
45 | swapgs(); |
- | 46 | ||
- | 47 | ||
- | 48 | #ifdef CONFIG_DEBUG_AS_WATCHPOINT |
|
- | 49 | /* Set watchpoint on AS to ensure that nobody sets it to zero */ |
|
- | 50 | static int old_slot = -1; |
|
- | 51 | if (old_slot >=0) |
|
- | 52 | breakpoint_del(old_slot); |
|
- | 53 | old_slot = breakpoint_add(&((the_t *) THREAD->kstack)->as, |
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- | 54 | BKPOINT_WRITE | BKPOINT_CHECK_ZERO); |
|
- | 55 | #endif |
|
45 | } |
56 | } |
46 | 57 | ||
47 | void after_thread_ran_arch(void) |
58 | void after_thread_ran_arch(void) |
48 | { |
59 | { |
49 | } |
60 | } |