Hi Matthew, > [ As mentioned in the commit message, the test was done with GCC 8.2.0 > since there was an unrelated problem compiling some sanitizer component > at the time. I will try to test a current GCC version during the weekend. ]
The compilation problem, more specifically, is In file included from ../../../../libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc:20: ../../../../libsanitizer/sanitizer_common/sanitizer_internal_defs.h:339:72: error: narrowing conversion of ‘-1’ from ‘int’ to ‘unsigned int’ [-Wnarrowing] 339 | typedef char IMPL_PASTE(assertion_failed_##_, line)[2*(int)(pred)-1] | ^ ../../../../libsanitizer/sanitizer_common/sanitizer_internal_defs.h:333:30: note: in expansion of macro ‘IMPL_COMPILER_ASSERT’ 333 | #define COMPILER_CHECK(pred) IMPL_COMPILER_ASSERT(pred, __LINE__) | ^~~~~~~~~~~~~~~~~~~~ ../../../../libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc:71:1: note: in expansion of macro ‘COMPILER_CHECK’ 71 | COMPILER_CHECK(struct_kernel_stat_sz == sizeof(struct stat)); | ^~~~~~~~~~~~~~ ../../../../libsanitizer/sanitizer_common/sanitizer_internal_defs.h:339:72: warning: size of array is not an integral constant-expression [-Wpedantic] 339 | typedef char IMPL_PASTE(assertion_failed_##_, line)[2*(int)(pred)-1] | ^ ../../../../libsanitizer/sanitizer_common/sanitizer_internal_defs.h:333:30: note: in expansion of macro ‘IMPL_COMPILER_ASSERT’ 333 | #define COMPILER_CHECK(pred) IMPL_COMPILER_ASSERT(pred, __LINE__) | ^~~~~~~~~~~~~~~~~~~~ ../../../../libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc:71:1: note: in expansion of macro ‘COMPILER_CHECK’ 71 | COMPILER_CHECK(struct_kernel_stat_sz == sizeof(struct stat)); | ^~~~~~~~~~~~~~ ../../../../libsanitizer/sanitizer_common/sanitizer_internal_defs.h:339:72: error: size of array ‘assertion_failed__71’ is negative 339 | typedef char IMPL_PASTE(assertion_failed_##_, line)[2*(int)(pred)-1] | ^ ../../../../libsanitizer/sanitizer_common/sanitizer_internal_defs.h:333:30: note: in expansion of macro ‘IMPL_COMPILER_ASSERT’ 333 | #define COMPILER_CHECK(pred) IMPL_COMPILER_ASSERT(pred, __LINE__) | ^~~~~~~~~~~~~~~~~~~~ ../../../../libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc:71:1: note: in expansion of macro ‘COMPILER_CHECK’ 71 | COMPILER_CHECK(struct_kernel_stat_sz == sizeof(struct stat)); | ^~~~~~~~~~~~~~ on commit a1054504a5da (origin/trunk as of now). The host is ppc64le with gcc-7.3.0 (Gentoo 7.3.0-r3 p1.4) and the target is mipsr5900el-unknown- linux-gnu. Fredrik