| 36,9 → 36,9 |
|---|
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/ksys.h> |
| |
| |
| |
| struct malloc_chunk { |
| size_t prev_foot; /* Size of previous chunk (if free). */ |
| size_t head; /* Size and inuse bits. */ |
| 60,34 → 60,9 |
|---|
| /* The maximum possible size_t value has all bits set */ |
| #define MAX_SIZE_T (~(size_t)0) |
| |
| void *user_alloc(size_t size) |
| { |
| void *val; |
| #define user_alloc(s) _ksys_alloc(s) |
| #define user_free _ksys_free |
| |
| // __asm__("int3"); |
| |
| __asm__ __volatile__( |
| "int $0x40" |
| :"=a"(val) |
| :"a"(68),"b"(12),"c"(size)); |
| return val; |
| } |
| |
| static inline |
| int user_free(void *mem) |
| { |
| int val; |
| |
| // __asm__("int3"); |
| |
| __asm__ __volatile__( |
| "int $0x40" |
| :"=a"(val) |
| :"a"(68),"b"(13),"c"(mem)); |
| return val; |
| } |
| |
| |
| /* ------------------- size_t and alignment properties -------------------- */ |
| |
| /* The byte and bit size of a size_t */ |