From 2bcaba0fd4f61493a02f11ad01d0677164e2e86e Mon Sep 17 00:00:00 2001 From: Harshit Sharma Date: Tue, 9 Jun 2020 20:25:16 -0700 Subject: lib: Add ASan stub Add a Kconfig option to enable address sanitizer on x86 architecture. Create ASan dummy functions. And add relevant gcc flags to compile ramstage with ASan. Change-Id: I6d87e48b6786f02dd46ea74e702f294082fd8891 Signed-off-by: Harshit Sharma Reviewed-on: https://review.coreboot.org/c/coreboot/+/42271 Tested-by: build bot (Jenkins) Reviewed-by: Werner Zeh --- src/Kconfig | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'src/Kconfig') diff --git a/src/Kconfig b/src/Kconfig index a4c2fa6010..1540c567e4 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -270,6 +270,19 @@ config UBSAN say N because it adds a small performance penalty and may abort on code that happens to work in spite of the UB. +config ASAN_IN_RAMSTAGE + bool "Address sanitizer support" + depends on ARCH_X86 + default n + help + Enable address sanitizer - runtime memory debugger, + designed to find out-of-bounds accesses and use-after-scope bugs. + + This feature consumes up to 1/8 of available memory and brings about + ~1.5x performance slowdown. + + If unsure, say N. + choice prompt "Stage Cache for ACPI S3 resume" default NO_STAGE_CACHE if !HAVE_ACPI_RESUME -- cgit v1.2.3