Hi cleaning up some long-standing testsuite noise for the sanitzer.
1. To be more compatible with Linux, Darwin testcases that include string.h should set _FORTIFY_SOURCE=0 since, otherwise, it will be defaulted on and the _chk versions of the string builtins will be used. This testcase fails otherwise because there's no convenient way to disable the _chk builtins. 2. The system tool that handles symbolization (atos) is not reliable with GCC's DWARF-2 output but, fortunately, all the platform versions that support the current sanitizers are able to handle dwarf-3 for this testcase. tested on all the versions of Darwin that currently support libsanitizer (Darwin13 to 20) and on x86_64-linux-gnu. pushed to master thanks Iain gcc/testsuite/ChangeLog: * c-c++-common/asan/strncpy-overflow-1.c: Add _FORTIFY_SOURCE=0 and -gdwarf-3 to the command line options. Adjust the expected line numbers for the revised options header. --- gcc/testsuite/c-c++-common/asan/strncpy-overflow-1.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/gcc/testsuite/c-c++-common/asan/strncpy-overflow-1.c b/gcc/testsuite/c-c++-common/asan/strncpy-overflow-1.c index a9c9b182888..3d439160b7e 100644 --- a/gcc/testsuite/c-c++-common/asan/strncpy-overflow-1.c +++ b/gcc/testsuite/c-c++-common/asan/strncpy-overflow-1.c @@ -1,5 +1,6 @@ /* { dg-do run } */ /* { dg-options "-fno-builtin-malloc -fno-builtin-strncpy" } */ +/* { dg-additional-options "-D_FORTIFY_SOURCE=0 -gdwarf-3" { target *-*-darwin* } } */ /* { dg-shouldfail "asan" } */ #include <string.h> @@ -14,8 +15,8 @@ int main(int argc, char **argv) { /* { dg-output "WRITE of size \[0-9\]* at 0x\[0-9a-f\]+ thread T0\[^\n\r]*(\n|\r\n|\r)" } */ /* { dg-output " #0 0x\[0-9a-f\]+ +(in _*(interceptor_|wrap_|)strncpy|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */ -/* { dg-output " #1 0x\[0-9a-f\]+ +(in _*main (\[^\n\r]*strncpy-overflow-1.c:11|\[^\n\r]*:0|\[^\n\r]*\\+0x\[0-9a-z\]*)|\[(\]).*(\n|\r\n|\r)" } */ +/* { dg-output " #1 0x\[0-9a-f\]+ +(in _*main (\[^\n\r]*strncpy-overflow-1.c:12|\[^\n\r]*:0|\[^\n\r]*\\+0x\[0-9a-z\]*)|\[(\]).*(\n|\r\n|\r)" } */ /* { dg-output "\[^\n\r]*0x\[0-9a-f\]+ is located 0 bytes to the right of 9-byte region\[^\n\r]*(\n|\r\n|\r)" } */ /* { dg-output "\[^\n\r]*allocated by thread T0 here:\[^\n\r]*(\n|\r\n|\r)" } */ /* { dg-output " #0 0x\[0-9a-f\]+ +(in _*(interceptor_|wrap_|)malloc|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */ -/* { dg-output " #1 0x\[0-9a-f\]+ +(in _*main (\[^\n\r]*strncpy-overflow-1.c:10|\[^\n\r]*:0|\[^\n\r]*\\+0x\[0-9a-z\]*)|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */ +/* { dg-output " #1 0x\[0-9a-f\]+ +(in _*main (\[^\n\r]*strncpy-overflow-1.c:11|\[^\n\r]*:0|\[^\n\r]*\\+0x\[0-9a-z\]*)|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */ -- 2.24.1