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From: "judge.packham at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug sanitizer/105614] New: mips64:
 sanitizer_platform_limits_linux.cpp:75:38: error: static assertion failed
Date: Mon, 16 May 2022 08:53:38 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105614

            Bug ID: 105614
           Summary: mips64: sanitizer_platform_limits_linux.cpp:75:38:
                    error: static assertion failed
           Product: gcc
           Version: 11.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: judge.packham at gmail dot com
                CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
                    jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxi=
n at gcc dot gnu.org
  Target Milestone: ---

Building for mips64-unknown-linux-gnu with libsanitizer enabled the followi=
ng
static_assert is triggered.

[ALL  ]    In file included from
/home/ctng/crosstool-ng/.build/mips64-unknown-linux-gnu/src/gcc/libsanitize=
r/sanitizer_common/sanitizer_platform_limits_linux.cpp:21:=20
[ERROR]=20=20=20
/home/ctng/crosstool-ng/.build/mips64-unknown-linux-gnu/src/gcc/libsanitize=
r/sanitizer_common/sanitizer_platform_limits_linux.cpp:75:38:
error: static assertion failed=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20
[ALL  ]       75 | COMPILER_CHECK(struct_kernel_stat_sz =3D=3D sizeof(struct
stat));=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20
[ALL  ]          |                ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~=
~~~=20=20
[ALL  ]=20=20=20
/home/ctng/crosstool-ng/.build/mips64-unknown-linux-gnu/src/gcc/libsanitize=
r/sanitizer_common/sanitizer_internal_defs.h:332:44:
note: in definition of macro 'COMPILER_CHECK'=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
[ALL  ]      332 | #define COMPILER_CHECK(pred) static_assert(pred, "")=20=
=20=20=20=20=20=20=20=20
[ALL  ]          |                                            ^~~~=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20
[ERROR]    make[5]: *** [Makefile:615: sanitizer_platform_limits_linux.lo]
Error 1=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20
[ERROR]    make[5]: *** Waiting for unfinished jobs....=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20

Looking at the libsanitizer code I see=20

#elif defined(__mips__)
const unsigned struct_kernel_stat_sz =3D SANITIZER_ANDROID
                                           ? FIRST_32_SECOND_64(104, 128)
                                           : FIRST_32_SECOND_64(144, 216);
const unsigned struct_kernel_stat64_sz =3D 104;

But from the Linux kernel's arch/mips/include/uapi/asm/stat.h I make the si=
ze
of struct stat 104 for the _MIPS_SIM_ABI64 case. The 144 seems to line up w=
ith
the _MIPS_SIM_NABI32/_MIPS_SIM_ABI32 case.

Where did libsanitizer get 216 from?=