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skip address read oob in lz4 for now

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This commit is contained in:
Philippe Teuwen 2020-10-06 17:31:31 +02:00
parent 92a768ce0e
commit fdac4da302
3 changed files with 7 additions and 6 deletions
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2
common/lz4/lz4.c
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@ -322,6 +322,8 @@ static void LZ4_write32(void *memPtr, U32 value) { *(U32 *)memPtr = value; }
typedef union { U16 u16; U32 u32; reg_t uArch; } __attribute__((packed)) unalign; typedef union { U16 u16; U32 u32; reg_t uArch; } __attribute__((packed)) unalign;
static U16 LZ4_read16(const void *ptr) { return ((const unalign *)ptr)->u16; } static U16 LZ4_read16(const void *ptr) { return ((const unalign *)ptr)->u16; }
// Tolerate reads on buffer boundary
ATTRIBUTE_NO_SANITIZE_ADDRESS
static U32 LZ4_read32(const void *ptr) { return ((const unalign *)ptr)->u32; } static U32 LZ4_read32(const void *ptr) { return ((const unalign *)ptr)->u32; }
static reg_t LZ4_read_ARCH(const void *ptr) { return ((const unalign *)ptr)->uArch; } static reg_t LZ4_read_ARCH(const void *ptr) { return ((const unalign *)ptr)->uArch; }

5
common/lz4/lz4.h
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@ -42,6 +42,11 @@ extern "C" {
/* --- Dependency --- */ /* --- Dependency --- */
#include <stddef.h> /* size_t */ #include <stddef.h> /* size_t */
#if defined(__clang__) || defined (__GNUC__)
# define ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
#else
# define ATTRIBUTE_NO_SANITIZE_ADDRESS
#endif
/** /**
Introduction Introduction

6
common/lz4/lz4hc.c
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@ -61,12 +61,6 @@
# pragma clang diagnostic ignored "-Wunused-function" # pragma clang diagnostic ignored "-Wunused-function"
#endif #endif
#if defined(__clang__) || defined (__GNUC__)
# define ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
#else
# define ATTRIBUTE_NO_SANITIZE_ADDRESS
#endif
/*=== Enums ===*/ /*=== Enums ===*/
typedef enum { noDictCtx, usingDictCtxHc } dictCtx_directive; typedef enum { noDictCtx, usingDictCtxHc } dictCtx_directive;