D33933.id101609.diff
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	Index: contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
	===================================================================
	--- contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
	+++ contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
	@@ -80,6 +80,7 @@

	#if SANITIZER_FREEBSD
	#include <sys/exec.h>
	+#include <sys/procctl.h>
	#include <sys/sysctl.h>
	#include <machine/atomic.h>
	extern "C" {
	@@ -2187,30 +2188,14 @@
	ReExec();
	}
	#elif SANITIZER_FREEBSD
	- int aslr_pie;
	- uptr len = sizeof(aslr_pie);
	-#if SANITIZER_WORDSIZE == 64
	- if (UNLIKELY(internal_sysctlbyname("kern.elf64.aslr.pie_enable",
	- &aslr_pie, &len, NULL, 0) == -1)) {
	+ int aslr_status;
	+ if (UNLIKELY(procctl(P_PID, 0, PROC_ASLR_STATUS, &aslr_status) == -1)) {
	// We're making things less 'dramatic' here since
	- // the OID is not necessarily guaranteed to be here
	+ // the cmd is not necessarily guaranteed to be here
	// just yet regarding FreeBSD release
	return;
	}
	-
	- if (aslr_pie > 0) {
	- Printf("This sanitizer is not compatible with enabled ASLR "
	- "and binaries compiled with PIE\n");
	- Die();
	- }
	-#endif
	- // there might be 32 bits compat for 64 bits
	- if (UNLIKELY(internal_sysctlbyname("kern.elf32.aslr.pie_enable",
	- &aslr_pie, &len, NULL, 0) == -1)) {
	- return;
	- }
	-
	- if (aslr_pie > 0) {
	+ if ((aslr_status & PROC_ASLR_ACTIVE) != 0) {
	Printf("This sanitizer is not compatible with enabled ASLR "
	"and binaries compiled with PIE\n");
	Die();