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44 lines
1.8 KiB
Diff
44 lines
1.8 KiB
Diff
From 902d3992922fc8db8495d5fb30a4581711b60c62 Mon Sep 17 00:00:00 2001
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From: Alistair Francis <alistair.francis@wdc.com>
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Date: Wed, 18 Sep 2019 09:28:50 -0700
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Subject: [PATCH] time: Use 64 prefix syscall if we have to
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Some 32-bit architectures no longer have the 32-bit time_t syscalls.
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Instead they have suffixed syscalls that returns a 64-bit time_t. If
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the architecture doesn't have the non-suffixed syscall and is using a
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64-bit time_t let's use the suffixed syscall instead.
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This fixes build issues when building for RISC-V 32-bit with 5.1+ kernel
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headers.
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If an architecture only supports the suffixed syscalls, but is still
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using a 32-bit time_t report a compilation error. This avoids us have to
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deal with converting between 64-bit and 32-bit values. There are
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currently no architectures where this is the case.
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Upstream-Status: Backport [https://git.busybox.net/busybox/commit/?id=902d3992922fc8db8495d5fb30a4581711b60c62]
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Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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---
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libbb/time.c | 7 +++++++
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1 file changed, 7 insertions(+)
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--- a/libbb/time.c
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+++ b/libbb/time.c
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@@ -257,7 +257,14 @@ char* FAST_FUNC strftime_YYYYMMDDHHMMSS(
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* typically requiring -lrt. We just skip all this mess */
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static void get_mono(struct timespec *ts)
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{
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- if (syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts))
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+#if defined(__NR_clock_gettime)
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+ if (syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts))
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+#elif __TIMESIZE == 64
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+ if (syscall(__NR_clock_gettime64, CLOCK_MONOTONIC, ts))
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+#else
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+# error "We currently don't support architectures without " \
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+ "the __NR_clock_gettime syscall and 32-bit time_t"
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+#endif
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bb_error_msg_and_die("clock_gettime(MONOTONIC) failed");
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}
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unsigned long long FAST_FUNC monotonic_ns(void)
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