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Move jmp_buf to thread data structure

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Justin Ethier 2015-11-05 21:21:48 -05:00
parent 7adc4f4586
commit 19a4a9599c
5 changed files with 16 additions and 8 deletions
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5
gc.c
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@ -675,6 +675,9 @@ void gc_thread_data_init(gc_thread_data *thd, char *stack_base, long stack_size)
(1 - STACK_GROWS_DOWNWARD));
exit(1);
}
thd->jmp_start = malloc(sizeof(jmp_buf));
thd->gc_ans = malloc(sizeof(object) * NUM_GC_ANS);
thd->gc_num_ans = 0;
thd->moveBufLen = 0;
gc_thr_grow_move_buffer(thd);
// TODO: depends on collector state: thd->gc_alloc_color = ATOMIC_GET(&gc_;
@ -692,6 +695,8 @@ void gc_thread_data_init(gc_thread_data *thd, char *stack_base, long stack_size)
void gc_thread_data_free(gc_thread_data *thd)
{
if (thd) {
if (thd->jmp_start) free(thd->jmp_start);
if (thd->gc_ans) free(thd->gc_ans);
if (thd->moveBuf) free(thd->moveBuf);
if (thd->mark_buffer) free(thd->mark_buffer);
free(thd);

2
include/cyclone/runtime-main.h
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@ -60,7 +60,7 @@ static void Cyc_main (stack_size,heap_size,stack_base)
start = clock(); /* Start the timing clock. */
/* Tank, load the jump program... */
setjmp(jmp_main);
setjmp(*(Cyc_thread->jmp_start));
#if DEBUG_GC
printf("Done with GC\n");
#endif

1
include/cyclone/runtime.h
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@ -225,7 +225,6 @@ extern long no_major_gcs; /* Count the number of GC's. */
extern object gc_cont; /* GC continuation closure. */
extern object gc_ans[NUM_GC_ANS]; /* argument for GC continuation closure. */
extern int gc_num_ans;
extern jmp_buf jmp_main; /* Where to jump to. */
/* Define Lisp constants we need. */
extern const object boolean_t;

4
include/cyclone/types.h
View file

@ -28,7 +28,7 @@
// This is used as the first generation of the GC.
#define STACK_SIZE 250000
// Size of a "page" on the heap (the 2nd generation), in bytes.
// Size of a "page" on the heap (the second generation), in bytes.
#define HEAP_SIZE 6000000
/* Define general object type. */
@ -40,7 +40,7 @@ struct gc_thread_data_t {
// Data needed for stack-based minor GC
char *stack_start;
char *stack_limit;
TODO:
jmp_buf *jmp_start;
object gc_cont;
object *gc_ans; //[NUM_GC_ANS];
short gc_num_ans;

12
runtime.c
View file

@ -82,7 +82,7 @@ void Cyc_check_bounds(void *data, const char *label, int len, int index) {
gc_heap *Cyc_heap;
gc_thread_data *Cyc_thread;
TODO: get rid of globals below that are not needed
//TODO: get rid of globals below that are not needed
clock_t start; /* Starting time. */
char *bottom; /* Bottom of tospace. */
char *allocp; /* Cheney allocate pointer. */
@ -98,11 +98,10 @@ char *dhalloc_end;
long no_gcs = 0; /* Count the number of GC's. */
long no_major_gcs = 0; /* Count the number of GC's. */
TODO: after previous change, move these to thread data structure
//TODO: after previous change, move these to thread data structure
object gc_cont; /* GC continuation closure. */
object gc_ans[NUM_GC_ANS]; /* argument for GC continuation closure. */
int gc_num_ans;
jmp_buf jmp_main; /* Where to jump to. */
object Cyc_global_variables = nil;
int _cyc_argc = 0;
@ -2746,7 +2745,12 @@ void GC(void *data, closure cont, object *args, int num_args)
}
/* Let it all go, Neo... */
longjmp(jmp_main, (int)(&data)); // Return globals gc_cont, gc_ans
// TODO: apparently it is a bad idea to cast a pointer to an int on 64 bit platforms
// as a pointer may be larger than an int. so need to figure out another technique
// here to communicate back to the setjmp which data to use. need to store a data
// structure of thread buffers for heap gc, so maybe be able to use an int to index
// into that.
longjmp(*(((gc_thread_data *)data)->jmp_start), (int)(&data)); // Return globals gc_cont, gc_ans
}