82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
#include "./memory.h"
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#include <assert.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef __linux__
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# include <execinfo.h>
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#endif
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#define MEMORY_LOG_FILE "memory-trace"
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void* memory_new(size_t size) {
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if (size == 0) return NULL;
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void* ptr = malloc(size);
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if (ptr == NULL) {
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fprintf(stderr, "failed to allocate %zu bytes memory", size);
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abort();
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}
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memory_log("new 0x%tx (%zu bytes)", (ptrdiff_t) ptr, size);
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return ptr;
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}
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void* memory_resize(void* ptr, size_t size) {
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if (ptr == NULL) return memory_new(size);
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if (size == 0) return ptr;
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void* newptr = realloc(ptr, size);
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if (newptr == NULL) {
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fprintf(stderr,
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"failed to allocate %zu bytes memory for resizing 0x%tx",
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size, (ptrdiff_t) ptr);
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abort();
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}
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memory_log("resize 0x%tx -> 0x%tx (%zu bytes)",
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(ptrdiff_t) ptr, (ptrdiff_t) newptr, size);
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return newptr;
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}
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void memory_delete(void* ptr) {
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if (ptr == NULL) return;
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free(ptr);
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memory_log("delete 0x%tx", (ptrdiff_t) ptr);
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}
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#ifndef NDEBUG
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void memory_log(const char* fmt, ...) {
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static FILE* fp = NULL;
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if (fp == NULL) {
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fp = fopen(MEMORY_LOG_FILE, "w");
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assert(fp != NULL);
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}
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va_list args;
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va_start(args, fmt);
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vfprintf(fp, fmt, args);
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va_end(args);
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fprintf(fp, "\n");
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# if __linux__
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void* callstack[32];
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const size_t frames = backtrace(callstack, sizeof(callstack));
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char** symbols = backtrace_symbols(callstack, frames);
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for (size_t i = 0; i < frames; ++i) {
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fprintf(fp, " %s\n", symbols[i]);
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}
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free(symbols);
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# endif /* __linux__ */
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fprintf(fp, "\n");
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fflush(fp);
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}
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#endif /* NDEBUG */
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