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linux/tools/build/feature/test-reallocarray.c

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tools: bpf: make use of reallocarray reallocarray() is a safer variant of realloc which checks for multiplication overflow in case of array allocation. Since it's not available in Glibc < 2.26 import kernel's overflow.h and add a static inline implementation when needed. Use feature detection to probe for existence of reallocarray. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jiong Wang <jiong.wang@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-10 14:43:05 -07:00
// SPDX-License-Identifier: GPL-2.0
#define _GNU_SOURCE
#include <stdlib.h>
int main(void)
{
return !!reallocarray(NULL, 1, 1);
}
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