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Add memory allocation support for C programs (#12254)

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This commit is contained in:
Jack May
2020-09-15 16:42:20 -07:00
committed by GitHub
parent 3d4b9bb00d
commit 5ab4109b7e
4 changed files with 91 additions and 13 deletions
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44
sdk/bpf/c/inc/solana_sdk.h
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@ -49,26 +49,26 @@ static_assert(sizeof(uint64_t) == 8);
/**
* Minimum of signed integral types
*/
# define INT8_MIN (-128)
# define INT16_MIN (-32767-1)
# define INT32_MIN (-2147483647-1)
# define INT64_MIN (-__INT64_C(9223372036854775807)-1)
#define INT8_MIN (-128)
#define INT16_MIN (-32767-1)
#define INT32_MIN (-2147483647-1)
#define INT64_MIN (-9223372036854775807L-1)
/**
* Maximum of signed integral types
*/
# define INT8_MAX (127)
# define INT16_MAX (32767)
# define INT32_MAX (2147483647)
# define INT64_MAX (__INT64_C(9223372036854775807))
#define INT8_MAX (127)
#define INT16_MAX (32767)
#define INT32_MAX (2147483647)
#define INT64_MAX (9223372036854775807L)
/**
* Maximum of unsigned integral types
*/
# define UINT8_MAX (255)
# define UINT16_MAX (65535)
# define UINT32_MAX (4294967295U)
# define UINT64_MAX (__UINT64_C(18446744073709551615))
#define UINT8_MAX (255)
#define UINT16_MAX (65535)
#define UINT32_MAX (4294967295U)
#define UINT64_MAX (18446744073709551615UL)
/**
* NULL
@ -227,6 +227,26 @@ static size_t sol_strlen(const char *s) {
*/
#define SOL_ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
/**
* Internal memory alloc/free function
*/
void *sol_alloc_free_(uint64_t size, void *ptr);
/**
* Alloc zero-initialized memory
*/
static void *sol_calloc(size_t nitems, size_t size) {
return sol_alloc_free_(nitems * size, 0);
}
/**
* Deallocates the memory previously allocated by sol_calloc
*/
static void sol_free(void *ptr) {
(void) sol_alloc_free_(0, ptr);
}
/**
* Panics
*