Bootstrapped and regtested on mips64-linux-gnuabi64.
bootstrap-ubsan revealed 3 bugs (PR 104842, 104843, 104851).
bootstrap-asan did not reveal any new bug.
gcc/
* config/mips/mips.h (SUBTARGET_SHADOW_OFFSET): Define.
* config/mips/mips.cc (mips_option_override): Make
-fsanitize=address imply -fasynchronous-unwind-tables. This is
needed by libasan for stack backtrace on MIPS.
(mips_asan_shadow_offset): Return SUBTARGET_SHADOW_OFFSET.
gcc/testsuite:
* c-c++-common/asan/global-overflow-1.c: Skip for MIPS with some
optimization levels because inaccurate debug info is causing
dg-output mismatch on line numbers.
* g++.dg/asan/large-func-test-1.C: Likewise.
libsanitizer/
* configure.tgt: Enable build on mips*64*-*-linux*.
target_flags |= MASK_64BIT;
}
+ /* -fsanitize=address needs to turn on -fasynchronous-unwind-tables in
+ order for tracebacks to be complete but not if any
+ -fasynchronous-unwind-table were already specified. */
+ if (flag_sanitize & SANITIZE_USER_ADDRESS
+ && !global_options_set.x_flag_asynchronous_unwind_tables)
+ flag_asynchronous_unwind_tables = 1;
+
if ((target_flags_explicit & MASK_FLOAT64) != 0)
{
if (mips_isa_rev >= 6 && !TARGET_FLOAT64)
static unsigned HOST_WIDE_INT
mips_asan_shadow_offset (void)
{
- return 0x0aaa0000;
+ return SUBTARGET_SHADOW_OFFSET;
}
/* Implement TARGET_STARTING_FRAME_OFFSET. See mips_compute_frame_info
&& !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
return res;
}
+/* { dg-skip-if "inaccurate debug info" { mips*-*-* } { "*" } { "-O0" } } */
/* { dg-output "READ of size 1 at 0x\[0-9a-f\]+ thread T0.*(\n|\r\n|\r)" } */
/* { dg-output " #0 0x\[0-9a-f\]+ +(in _*main (\[^\n\r]*global-overflow-1.c:20|\[^\n\r]*:0|\[^\n\r]*\\+0x\[0-9a-z\]*)|\[(\])\[^\n\r]*(\n|\r\n|\r).*" } */
/* { dg-output "0x\[0-9a-f\]+ is located 0 bytes to the right of global variable" } */
delete x;
}
+// { dg-skip-if "inaccurate debug info" { mips*-*-* } { "-Os" } { "" } }
// { dg-output "ERROR: AddressSanitizer:? heap-buffer-overflow on address\[^\n\r]*" }
// { dg-output "0x\[0-9a-f\]+ at pc 0x\[0-9a-f\]+ bp 0x\[0-9a-f\]+ sp 0x\[0-9a-f\]+\[^\n\r]*(\n|\r\n|\r)" }
// { dg-output "\[^\n\r]*READ of size 4 at 0x\[0-9a-f\]+ thread T0\[^\n\r]*(\n|\r\n|\r)" }
;;
arm*-*-linux*)
;;
- mips*64*-*-linux*)
- # This clause is only here to not match the supported mips*-*-linux*.
- UNSUPPORTED=1
- ;;
mips*-*-linux*)
;;
aarch64*-*-linux*)