在 2022/9/7 下午4:02, Xi Ruoyao 写道:
On Wed, 2022-09-07 at 15:39 +0800, Lulu Cheng wrote:
Sorry, asan shadow offset is wrong in v1.
In the file asan_mapping.h line 207:
# define ASAN_SHADOW_OFFSET_CONST 0x0000400000000000
So it's should be 1<<46.
LGTM. I forgot to include this change in r13-2296 :(.
pushed to r13-2510.:-)
------------------------------------
gcc/ChangeLog:
PR target/106828
* config/loongarch/loongarch.cc
(loongarch_asan_shadow_offset): New.
(TARGET_ASAN_SHADOW_OFFSET): New.
gcc/testsuite/ChangeLog:
PR target/106828
* g++.target/loongarch/pr106828.C: New test.
---
gcc/config/loongarch/loongarch.cc | 13 +++++++++++++
gcc/testsuite/g++.target/loongarch/pr106828.C | 4 ++++
2 files changed, 17 insertions(+)
create mode 100644 gcc/testsuite/g++.target/loongarch/pr106828.C
diff --git a/gcc/config/loongarch/loongarch.cc
b/gcc/config/loongarch/loongarch.cc
index 10acf06ef79..424fa4487f8 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -6471,6 +6471,16 @@ loongarch_use_anchors_for_symbol_p (const_rtx
symbol)
return default_use_anchors_for_symbol_p (symbol);
}
+/* Implement the TARGET_ASAN_SHADOW_OFFSET hook. */
+
+static unsigned HOST_WIDE_INT
+loongarch_asan_shadow_offset (void)
+{
+ /* We only have libsanitizer support for LOONGARCH64 at present.
+ This value is taken from the file
libsanitizer/asan/asan_mappint.h. */
+ return TARGET_64BIT ? (HOST_WIDE_INT_1 << 46) : 0;
+}
+
/* Initialize the GCC target structure. */
#undef TARGET_ASM_ALIGNED_HI_OP
#define TARGET_ASM_ALIGNED_HI_OP "\t.half\t"
@@ -6665,6 +6675,9 @@ loongarch_use_anchors_for_symbol_p (const_rtx
symbol)
#undef TARGET_USE_ANCHORS_FOR_SYMBOL_P
#define TARGET_USE_ANCHORS_FOR_SYMBOL_P
loongarch_use_anchors_for_symbol_p
+#undef TARGET_ASAN_SHADOW_OFFSET
+#define TARGET_ASAN_SHADOW_OFFSET loongarch_asan_shadow_offset
+
struct gcc_target targetm = TARGET_INITIALIZER;
#include "gt-loongarch.h"
diff --git a/gcc/testsuite/g++.target/loongarch/pr106828.C
b/gcc/testsuite/g++.target/loongarch/pr106828.C
new file mode 100644
index 00000000000..190c1db715f
--- /dev/null
+++ b/gcc/testsuite/g++.target/loongarch/pr106828.C
@@ -0,0 +1,4 @@
+/* { dg-do-preprocess } */
+/* { dg-options "-mabi=lp64d -fsanitize=address" } */
+
+/* Tests whether the compiler supports compile option '-
fsanitize=address'. */
