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Improve endian self-test per discussion with Anton.

edge.strict_endians
Yura Pakhuchiy 2007-08-23 17:39:00 +03:00
parent c0b691ca17
commit f5a2ae79a9
1 changed files with 29 additions and 19 deletions
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48
include/ntfs/endians.h
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@ -208,29 +208,39 @@
static void ntfs_endian_self_test(void)
{
/* Should not generate warnings. */
(le16)cpu_to_le16((u16)0);
(le32)cpu_to_le32((u32)0);
(le64)cpu_to_le64((u64)0);
(sle16)cpu_to_sle16((s16)0);
(sle32)cpu_to_sle32((s32)0);
(sle64)cpu_to_sle64((s64)0);
(u16)le16_to_cpu((__force le16)0);
(u32)le32_to_cpu((__force le32)0);
(u64)le64_to_cpu((__force le64)0);
(s16)sle16_to_cpu((__force sle16)0);
(s32)sle32_to_cpu((__force sle32)0);
(s64)sle64_to_cpu((__force sle64)0);
(le16)const_cpu_to_le16((u16)0);
(le32)const_cpu_to_le32((u32)0);
(le64)const_cpu_to_le64((u64)0);
(u16)const_le16_to_cpu((__force le16)0);
(u32)const_le32_to_cpu((__force le32)0);
(u64)const_le64_to_cpu((__force le64)0);
(le16)cpu_to_le16((u16)1);
(le32)cpu_to_le32((u32)1);
(le64)cpu_to_le64((u64)1);
(sle16)cpu_to_sle16((s16)1);
(sle32)cpu_to_sle32((s32)1);
(sle64)cpu_to_sle64((s64)1);
(u16)le16_to_cpu((__force le16)1);
(u32)le32_to_cpu((__force le32)1);
(u64)le64_to_cpu((__force le64)1);
(s16)sle16_to_cpu((__force sle16)1);
(s32)sle32_to_cpu((__force sle32)1);
(s64)sle64_to_cpu((__force sle64)1);
(le16)const_cpu_to_le16((u16)1);
(le32)const_cpu_to_le32((u32)1);
(le64)const_cpu_to_le64((u64)1);
(u16)const_le16_to_cpu((__force le16)1);
(u32)const_le32_to_cpu((__force le32)1);
(u64)const_le64_to_cpu((__force le64)1);
/*
* TODO: Need some how to test that warnings are actually generated,
* but without flooding output with them and vice-versa print warning
* in case if some one warning is not triggered, but should. Any ideas?
* in case if some one warning is not triggered, but should. (Yura)
*
* I think it can only be done in a ./configure like script / shell
* script that will compile known good and known bad code and pipe the
* output from sparse to a file, then grep the file for the wanted
* warnings/lack thereof and then it would say "Tests: PASS " or
* "Tests: FAILED" or whatever. And you can then hook that into a
* "make test" make target or similar so it is only done when one
* wants to do it... (Anton)
*
* Also we can look on sparse self test script. (Yura)
*/
}
#endif