[dpdk-dev] [PATCH v2] eal/arm64: support ASan
From: Volodymyr Fialko <hidden>
Date: 2021-11-08 22:35:45
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
This patch defines ASAN_SHADOW_OFFSET for arm64 according to the ASan documentation. This offset should cover all arm64 VMAs supported by ASan. Signed-off-by: Volodymyr Fialko <redacted> Reviewed-by: David Marchand <redacted> Acked-by: Jerin Jacob <redacted> --- Changes since v1: - changed the subject - rewrite checks in "elif" manner --- config/meson.build | 2 +- doc/guides/prog_guide/asan.rst | 2 +- lib/eal/common/malloc_elem.h | 2 ++ 3 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/config/meson.build b/config/meson.build
index 17b5bec406..7eb710c08d 100644
--- a/config/meson.build
+++ b/config/meson.build@@ -428,7 +428,7 @@ if get_option('b_sanitize') == 'address' or get_option('b_sanitize') == 'address dpdk_extra_ldflags += '-lasan' endif - if is_linux and arch_subdir == 'x86' and dpdk_conf.get('RTE_ARCH_64') + if is_linux and arch_subdir in ['x86', 'arm'] and dpdk_conf.get('RTE_ARCH_64') dpdk_conf.set10('RTE_MALLOC_ASAN', true) endif endif
diff --git a/doc/guides/prog_guide/asan.rst b/doc/guides/prog_guide/asan.rst
index 6d1b871c93..28b2382fc7 100644
--- a/doc/guides/prog_guide/asan.rst
+++ b/doc/guides/prog_guide/asan.rst@@ -33,7 +33,7 @@ Example:: "stty echo" command when an error occurs. ASan is aware of DPDK memory allocations, thanks to added instrumentation. -This is only enabled on x86_64 at the moment. +This is enabled on x86_64 and arm64 at the moment. Other architectures may have to define ASAN_SHADOW_OFFSET. Example heap-buffer-overflow error
diff --git a/lib/eal/common/malloc_elem.h b/lib/eal/common/malloc_elem.h
index 262d69bb3e..26e937cea0 100644
--- a/lib/eal/common/malloc_elem.h
+++ b/lib/eal/common/malloc_elem.h@@ -106,6 +106,8 @@ malloc_elem_cookies_ok(const struct malloc_elem *elem) #ifdef RTE_ARCH_X86_64 #define ASAN_SHADOW_OFFSET 0x00007fff8000 +#elif defined(RTE_ARCH_ARM64) +#define ASAN_SHADOW_OFFSET 0x001000000000 #endif #define ASAN_SHADOW_GRAIN_SIZE 8
--
2.25.1