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-rw-r--r--libguile/whippet/api/pcc-attrs.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/libguile/whippet/api/pcc-attrs.h b/libguile/whippet/api/pcc-attrs.h
new file mode 100644
index 000000000..12a555a5d
--- /dev/null
+++ b/libguile/whippet/api/pcc-attrs.h
@@ -0,0 +1,92 @@
+#ifndef PCC_ATTRS_H
+#define PCC_ATTRS_H
+
+#include "gc-config.h"
+#include "gc-assert.h"
+#include "gc-attrs.h"
+
+static const uintptr_t GC_ALIGNMENT = 8;
+static const size_t GC_LARGE_OBJECT_THRESHOLD = 8192;
+
+static inline enum gc_allocator_kind gc_allocator_kind(void) {
+ return GC_ALLOCATOR_INLINE_BUMP_POINTER;
+}
+static inline size_t gc_allocator_small_granule_size(void) {
+ return GC_ALIGNMENT;
+}
+static inline size_t gc_allocator_large_threshold(void) {
+ return GC_LARGE_OBJECT_THRESHOLD;
+}
+
+static inline size_t gc_allocator_allocation_pointer_offset(void) {
+ return sizeof(uintptr_t) * 0;
+}
+static inline size_t gc_allocator_allocation_limit_offset(void) {
+ return sizeof(uintptr_t) * 1;
+}
+
+static inline size_t gc_allocator_freelist_offset(size_t size, enum gc_allocation_kind kind) {
+ GC_CRASH();
+}
+
+static inline size_t gc_allocator_alloc_table_alignment(void) {
+ return 0;
+}
+static inline uint8_t gc_allocator_alloc_table_begin_pattern(enum gc_allocation_kind kind) {
+ GC_CRASH();
+}
+static inline uint8_t gc_allocator_alloc_table_end_pattern(void) {
+ GC_CRASH();
+}
+
+static inline enum gc_old_generation_check_kind gc_old_generation_check_kind(size_t size) {
+ if (!GC_GENERATIONAL)
+ return GC_OLD_GENERATION_CHECK_NONE;
+ if (size <= gc_allocator_large_threshold())
+ return GC_OLD_GENERATION_CHECK_SMALL_OBJECT_NURSERY;
+ return GC_OLD_GENERATION_CHECK_SLOW;
+}
+static inline uint8_t gc_old_generation_check_alloc_table_tag_mask(void) {
+ GC_CRASH();
+}
+static inline uint8_t gc_old_generation_check_alloc_table_young_tag(void) {
+ GC_CRASH();
+}
+
+static inline enum gc_write_barrier_kind gc_write_barrier_kind(size_t obj_size) {
+ if (!GC_GENERATIONAL)
+ return GC_WRITE_BARRIER_NONE;
+ if (obj_size <= gc_allocator_large_threshold())
+ return GC_WRITE_BARRIER_FIELD;
+ return GC_WRITE_BARRIER_SLOW;
+}
+static inline size_t gc_write_barrier_field_table_alignment(void) {
+ GC_ASSERT(GC_GENERATIONAL);
+ return 64 * 1024 * 1024;
+}
+static inline ptrdiff_t gc_write_barrier_field_table_offset(void) {
+ GC_ASSERT(GC_GENERATIONAL);
+ return 128 * 1024;
+}
+static inline size_t gc_write_barrier_field_fields_per_byte(void) {
+ GC_ASSERT(GC_GENERATIONAL);
+ return 8;
+}
+static inline uint8_t gc_write_barrier_field_first_bit_pattern(void) {
+ GC_ASSERT(GC_GENERATIONAL);
+ return 1;
+}
+
+static inline enum gc_safepoint_mechanism gc_safepoint_mechanism(void) {
+ return GC_SAFEPOINT_MECHANISM_COOPERATIVE;
+}
+
+static inline enum gc_cooperative_safepoint_kind gc_cooperative_safepoint_kind(void) {
+ return GC_COOPERATIVE_SAFEPOINT_HEAP_FLAG;
+}
+
+static inline int gc_can_pin_objects(void) {
+ return 0;
+}
+
+#endif // PCC_ATTRS_H