41 lines
1012 B
C
41 lines
1012 B
C
//---
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// gint:kmalloc:arena_osheap - An arena that uses the OS heap as input
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//---
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#include <gint/kmalloc.h>
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#include <gint/defs/attributes.h>
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/* Syscalls relating to the OS heap */
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extern void *__malloc(size_t size);
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extern void *__realloc(void *ptr, size_t newsize);
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extern void __free(void *ptr);
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static void *osheap_malloc(size_t size, GUNUSED void *data)
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{
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return __malloc(size);
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}
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static void *osheap_realloc(void *ptr, size_t newsize, GUNUSED void *data)
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{
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return __realloc(ptr, newsize);
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}
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static void osheap_free(void *ptr, GUNUSED void *data)
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{
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return __free(ptr);
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}
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/* This is a global variable, it's pulled by kmalloc.c. This arena is the only
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one allowed to not specify start/end as the values are hard to determine. */
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kmalloc_arena_t kmalloc_arena_osheap = {
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.malloc = osheap_malloc,
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.realloc = osheap_realloc,
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.free = osheap_free,
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.name = "_os",
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.start = NULL,
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.end = NULL,
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.data = NULL,
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.is_default = 1,
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.stats = { 0 },
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};
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