tools/nolibc: make time_t robust if __kernel_old_time_t is missing in host headers

Commit d5094bcb5b ("tools/nolibc: define time_t in terms of
__kernel_old_time_t") made nolibc use the kernel's time type so that
`time_t` matches `timespec::tv_sec` on all ABIs (notably x32).

But since __kernel_old_time_t is fairly new, notably from 2020 in commit
94c467ddb2 ("y2038: add __kernel_old_timespec and __kernel_old_time_t"),
nolibc builds that rely on host headers may fail.

Switch to __kernel_time_t, which is the same as __kernel_old_time_t and
has existed for longer.

Tested in PPC VM of Open Source Lab of Oregon State University
(./tools/testing/selftests/rcutorture/bin/mkinitrd.sh)

Fixes: d5094bcb5b ("tools/nolibc: define time_t in terms of __kernel_old_time_t")
Signed-off-by: Zhouyi Zhou <zhouzhouyi@gmail.com>
[Thomas: Reformat commit and its message a bit]
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>

This commit is contained in:

Zhouyi Zhou

2025-09-20 11:06:37 +02:00

committed by

Thomas Weißschuh

parent ca38943e83

commit 0ff52df6b3

1 changed files with 1 additions and 1 deletions

									
										tools/include/nolibc/std.h
									
		+1
		-1
	
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				@@ -29,6 +29,6 @@ typedef unsigned long       nlink_t;

				typedef   signed long         off_t;

				typedef   signed long     blksize_t;

				typedef   signed long      blkcnt_t;

				typedef __kernel_old_time_t  time_t;

				typedef __kernel_time_t      time_t;

				#endif /* _NOLIBC_STD_H */