92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
// hakmem_sys.c - Syscall Wrappers Implementation
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//
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// License: MIT
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// Date: 2025-10-21
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#include "hakmem_sys.h"
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#include "hakmem_debug.h"
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#include "hakmem_env_cache.h" // For HAK_ENV_SS_MADVISE_STRICT
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#include "box/ss_os_acquire_box.h"
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#include <sys/mman.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h> // For errno values
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// madvise constants (Linux)
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#ifndef MADV_DONTNEED
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#define MADV_DONTNEED 4
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#endif
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#ifndef MADV_WILLNEED
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#define MADV_WILLNEED 3
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#endif
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// ============================================================================
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// Syscall Wrappers (計測付き)
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// ============================================================================
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void* hkm_sys_mmap(size_t size) {
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HKM_TIME_START(t0);
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void* ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
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HKM_TIME_END(HKM_CAT_SYSCALL_MMAP, t0);
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if (ptr == MAP_FAILED) {
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fprintf(stderr, "[HAKMEM SYS] mmap(%zu) failed\n", size);
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return NULL;
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}
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return ptr;
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}
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void hkm_sys_munmap(void* ptr, size_t size) {
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if (!ptr) return;
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HKM_TIME_START(t0);
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int ret = munmap(ptr, size);
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HKM_TIME_END(HKM_CAT_SYSCALL_MUNMAP, t0);
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if (ret != 0) {
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fprintf(stderr, "[HAKMEM SYS] munmap(%p, %zu) failed\n", ptr, size);
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}
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}
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void hkm_sys_madvise_dontneed(void* ptr, size_t size) {
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if (!ptr) return;
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HKM_TIME_START(t0);
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int ret = ss_os_madvise_guarded(ptr, size, MADV_DONTNEED, "hakmem_sys_dontneed");
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HKM_TIME_END(HKM_CAT_SYSCALL_MADVISE, t0);
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if (ret != 0) {
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fprintf(stderr, "[HAKMEM SYS] madvise(DONTNEED, %p, %zu) failed errno=%d\n", ptr, size, errno);
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if (HAK_ENV_SS_MADVISE_STRICT() && errno == EINVAL) {
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fprintf(stderr, "[HAKMEM SYS] Critical: madvise(DONTNEED) failed with EINVAL in strict mode. Aborting.\n");
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abort();
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}
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}
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}
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void hkm_sys_madvise_willneed(void* ptr, size_t size) {
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if (!ptr) return;
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HKM_TIME_START(t0);
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int ret = ss_os_madvise_guarded(ptr, size, MADV_WILLNEED, "hakmem_sys_willneed");
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HKM_TIME_END(HKM_CAT_SYSCALL_MADVISE, t0);
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if (ret != 0) {
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fprintf(stderr, "[HAKMEM SYS] madvise(WILLNEED, %p, %zu) failed errno=%d\n", ptr, size, errno);
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if (HAK_ENV_SS_MADVISE_STRICT() && errno == EINVAL) {
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fprintf(stderr, "[HAKMEM SYS] Critical: madvise(WILLNEED) failed with EINVAL in strict mode. Aborting.\n");
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abort();
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}
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}
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}
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