Mercurial > hg > Members > anatofuz > CbC_xv6
annotate src/proc.h @ 94:d876c9a65239 default tip
impl mac os target
| author | anatofuz <anatofuz@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Wed, 23 Oct 2019 14:31:38 +0900 |
| parents | a4307abefd0b |
| children |
| rev | line source |
|---|---|
| 26 | 1 #include "typedefData.h" |
| 0 | 2 #ifndef PROC_INCLUDE_ |
| 3 #define PROC_INCLUDE_ | |
|
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a4307abefd0b
include context.h on proc.h and ajastment directory on CMakeList.txt
tobaru
parents:
80
diff
changeset
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4 #include "context.h" |
| 0 | 5 |
| 6 // Per-CPU state, now we only support one CPU | |
| 7 struct cpu { | |
| 8 uchar id; // index into cpus[] below | |
| 9 struct context* scheduler; // swtch() here to enter scheduler | |
| 10 volatile uint started; // Has the CPU started? | |
| 11 | |
| 12 int ncli; // Depth of pushcli nesting. | |
| 13 int intena; // Were interrupts enabled before pushcli? | |
| 14 | |
| 15 // Cpu-local storage variables; see below | |
| 16 struct cpu* cpu; | |
| 17 struct proc* proc; // The currently-running process. | |
| 18 }; | |
| 19 | |
| 20 extern struct cpu cpus[NCPU]; | |
| 21 extern int ncpu; | |
| 22 | |
| 23 | |
| 24 extern struct cpu* cpu; | |
| 25 extern struct proc* proc; | |
| 26 | |
| 27 //PAGEBREAK: 17 | |
| 28 // Saved registers for kernel context switches. The context switcher | |
| 29 // needs to save the callee save register, as usually. For ARM, it is | |
| 30 // also necessary to save the banked sp (r13) and lr (r14) registers. | |
| 31 // There is, however, no need to save the user space pc (r15) because | |
| 32 // pc has been saved on the stack somewhere. We only include it here | |
| 33 // for debugging purpose. It will not be restored for the next process. | |
| 34 // According to ARM calling convension, r0-r3 is caller saved. We do | |
| 35 // not need to save sp_svc, as it will be saved in the pcb, neither | |
| 36 // pc_svc, as it will be always be the same value. | |
| 37 // | |
| 38 // Keep it in sync with swtch.S | |
| 39 // | |
| 40 struct context { | |
| 41 // svc mode registers | |
| 42 uint r4; | |
| 43 uint r5; | |
| 44 uint r6; | |
| 45 uint r7; | |
| 46 uint r8; | |
| 47 uint r9; | |
| 48 uint r10; | |
| 49 uint r11; | |
| 50 uint r12; | |
| 51 uint lr; | |
| 52 }; | |
| 53 | |
| 54 | |
| 55 enum procstate { UNUSED, EMBRYO, SLEEPING, RUNNABLE, RUNNING, ZOMBIE }; | |
| 56 | |
| 57 // Per-process state | |
| 58 struct proc { | |
| 59 uint sz; // Size of process memory (bytes) | |
| 60 pde_t* pgdir; // Page table | |
| 61 char* kstack; // Bottom of kernel stack for this process | |
| 62 enum procstate state; // Process state | |
| 63 volatile int pid; // Process ID | |
| 64 struct proc* parent; // Parent process | |
| 65 struct trapframe* tf; // Trap frame for current syscall | |
| 66 struct context* context; // swtch() here to run process | |
| 67 void* chan; // If non-zero, sleeping on chan | |
| 68 int killed; // If non-zero, have been killed | |
| 69 struct file* ofile[NOFILE]; // Open files | |
| 70 struct inode* cwd; // Current directory | |
| 71 char name[16]; // Process name (debugging) | |
|
84
a4307abefd0b
include context.h on proc.h and ajastment directory on CMakeList.txt
tobaru
parents:
80
diff
changeset
|
72 struct Context cbc_context; |
| 25 | 73 union cbc_arg { |
| 74 struct cbc_console_arg { | |
| 37 | 75 int n; |
| 32 | 76 int target; |
| 77 char* dst; | |
| 78 struct inode *ip; | |
| 79 struct file *f; | |
| 80 int num; | |
| 37 | 81 struct pipe *p; |
| 82 char *addr; | |
| 83 int i; | |
| 32 | 84 __code (*next)(int ret); |
| 26 | 85 } cbc_console_arg; |
| 25 | 86 } cbc_arg; |
| 87 __code (*cbc_next)(); | |
| 27 | 88 struct spinlock *lk; |
| 0 | 89 }; |
| 90 | |
| 80 | 91 // typedef struct context_interface<Type,Imple>{ |
| 92 // // union Data* stack; | |
| 93 // // union Data* data; | |
| 94 // | |
| 95 // // __code push(Impl* stack,Type* data, __code next(...)); | |
| 96 // // __code next(...); | |
| 97 // | |
| 98 // union Data* stack; | |
| 99 // union Data* data; | |
| 100 // union Data* data1; | |
| 101 // enum Code whenEmpty; | |
| 102 // enum Code clear; | |
| 103 // enum Code push; | |
| 104 // enum Code pop; | |
| 105 // enum Code pop2; | |
| 106 // enum Code isEmpty; | |
| 107 // enum Code get; | |
| 108 // enum Code get2; | |
| 109 // enum Code next; | |
| 110 // }context_interface; | |
| 111 | |
| 112 | |
| 0 | 113 // Process memory is laid out contiguously, low addresses first: |
| 114 // text | |
| 115 // original data and bss | |
| 116 // fixed-size stack | |
| 117 // expandable heap | |
| 118 #endif |