[PATCH] Mips: Fix the ASAN shadow offset hook for the n32 ABI

[Dimitrije Milosevic]

Fix the ASAN shadow offset hook for the n32 ABI.

gcc/ChangeLog:

        * config/mips/mips.cc (mips_asan_shadow_offset): Reformat
        to handle the N32 ABI.
        * config/mips/mips.h (SUBTARGET_SHADOW_OFFSET): Remove
        the macro, as it is not needed anymore.

---

 gcc/config/mips/mips.cc | 7 ++++++-
 gcc/config/mips/mips.h  | 7 -------
 2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/gcc/config/mips/mips.cc b/gcc/config/mips/mips.cc
index 2dce4007678..91e651c458e 100644
--- a/gcc/config/mips/mips.cc
+++ b/gcc/config/mips/mips.cc
@@ -22745,7 +22745,12 @@ mips_constant_alignment (const_tree exp, HOST_WIDE_INT 
align)
 static unsigned HOST_WIDE_INT
 mips_asan_shadow_offset (void)
 {
-  return SUBTARGET_SHADOW_OFFSET;
+  if (mips_abi == ABI_N32)
+    return (HOST_WIDE_INT_1 << 29);
+  if (POINTER_SIZE == 64)
+    return (HOST_WIDE_INT_1 << 37);
+  else
+    return HOST_WIDE_INT_C (0x0aaa0000);
 }

 /* Implement TARGET_STARTING_FRAME_OFFSET.  See mips_compute_frame_info
diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h
index 858bbba3a36..0029864fdcd 100644
--- a/gcc/config/mips/mips.h
+++ b/gcc/config/mips/mips.h
@@ -3463,10 +3463,3 @@ struct GTY(())  machine_function {
    && !TARGET_MICROMIPS && !TARGET_FIX_24K)

 #define NEED_INDICATE_EXEC_STACK 0
-
-/* Define the shadow offset for asan. Other OS's can override in the
-   respective tm.h files.  */
-#ifndef SUBTARGET_SHADOW_OFFSET
-#define SUBTARGET_SHADOW_OFFSET \
-  (POINTER_SIZE == 64 ? HOST_WIDE_INT_1 << 37 : HOST_WIDE_INT_C (0x0aaa0000))
-#endif

---