SHA2 ASAN interceptors on FreeBSD and NetBSD

[botovq]

The SHA2 *_{Init,Update,Final,Transform}() functions on FreeBSD (manual) and NetBSD (cf manual) collide with functions of the same name in OpenSSL. The signatures are incompatible (return types and contexts).

This leads to undesirable runtime failures when using -fsanitize=-address in combination with -lcrypto.

Not all of the below are problematic for both FreeBSD and NetBSD, but should probably be audited in detail and potentially be removed.

llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_interceptors.h

Lines 564 to 570 in 880ee48

	#define SANITIZER_INTERCEPT_SHA1 SI_NETBSD
	#define SANITIZER_INTERCEPT_MD4 SI_NETBSD
	#define SANITIZER_INTERCEPT_RMD160 SI_NETBSD
	#define SANITIZER_INTERCEPT_MD5 (SI_NETBSD || SI_FREEBSD)
	#define SANITIZER_INTERCEPT_FSEEK (SI_NETBSD || SI_FREEBSD)
	#define SANITIZER_INTERCEPT_MD2 SI_NETBSD
	#define SANITIZER_INTERCEPT_SHA2 (SI_NETBSD || SI_FREEBSD)

See libressl/portable#1098, openssl/openssl#25456, and https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281685 for more details.

Cc: @krytarowski @devnexen

[devnexen]

Will make a PR backport to 19.x later in the day.