37 lines
1.3 KiB
Diff
37 lines
1.3 KiB
Diff
From eb5552190000b9699bba33e1e419f500c7bd18b7 Mon Sep 17 00:00:00 2001
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From: Ben Noordhuis <info@bnoordhuis.nl>
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Date: Sat, 19 Oct 2019 09:54:46 +0200
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Subject: [PATCH] linux: fix arm64 SYS__sysctl build breakage
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The arm64 architecture never had a _sysctl system call and therefore
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doesn't have a SYS__sysctl define either. Always return UV_ENOSYS.
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Fixes: https://github.com/libuv/libuv/issues/2522
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---
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src/unix/random-sysctl.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/src/unix/random-sysctl.c b/src/unix/random-sysctl.c
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index 7af2e32070..fb182ded09 100644
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--- a/src/unix/random-sysctl.c
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+++ b/src/unix/random-sysctl.c
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@@ -65,9 +65,18 @@ int uv__random_sysctl(void* buf, size_t buflen) {
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* an okay trade-off for the fallback of the fallback: this function is
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* only called when neither getrandom(2) nor /dev/urandom are available.
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* Fails with ENOSYS on kernels configured without CONFIG_SYSCTL_SYSCALL.
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+ * At least arm64 never had a _sysctl system call and therefore doesn't
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+ * have a SYS__sysctl define either.
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*/
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+#ifdef SYS__sysctl
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if (syscall(SYS__sysctl, &args) == -1)
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return UV__ERR(errno);
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+#else
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+ {
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+ (void) &args;
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+ return UV_ENOSYS;
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+ }
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+#endif
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if (n != sizeof(uuid))
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return UV_EIO; /* Can't happen. */
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