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 | 14 ++++++++++++++
gcc/testsuite/g++.target/loongarch/pr106828.C | 4 ++++
2 files changed, 18 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..58f92e05796 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -6471,6 +6471,17 @@ 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 obtained from 'LowShadow' in the file
+ libsanitizer/asan/asan_mappint.h for Linux/LoongArch64. */
+ return TARGET_64BIT ? (HOST_WIDE_INT_1 << 38) : 0;
+}
+
/* Initialize the GCC target structure. */
#undef TARGET_ASM_ALIGNED_HI_OP
#define TARGET_ASM_ALIGNED_HI_OP "\t.half\t"
@@ -6665,6 +6676,9 @@ 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'. */
--
2.31.1
