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77 lines
2.7 KiB
77 lines
2.7 KiB
3 years ago
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Note that this has been modified from the original commit, to use __has_include
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instead of __has_include__, as the later was causing build failures with GCC 10.
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See also: http://lists.busybox.net/pipermail/buildroot/2020-July/590376.html.
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3 years ago
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https://sourceware.org/git/?p=glibc.git;a=commit;h=0b9c84906f653978fb8768c7ebd0ee14a47e662e
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3 years ago
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From 562c52cc81a4e456a62e6455feb32732049e9070 Mon Sep 17 00:00:00 2001
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From: "H.J. Lu" <hjl.tools@gmail.com>
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Date: Mon, 31 Dec 2018 09:26:42 -0800
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Subject: [PATCH] riscv: Use __has_include__ to include <asm/syscalls.h> [BZ
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#24022]
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<asm/syscalls.h> has been removed by
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commit 27f8899d6002e11a6e2d995e29b8deab5aa9cc25
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Author: David Abdurachmanov <david.abdurachmanov@gmail.com>
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Date: Thu Nov 8 20:02:39 2018 +0100
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riscv: add asm/unistd.h UAPI header
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Marcin Juszkiewicz reported issues while generating syscall table for riscv
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using 4.20-rc1. The patch refactors our unistd.h files to match some other
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architectures.
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- Add asm/unistd.h UAPI header, which has __ARCH_WANT_NEW_STAT only for 64-bit
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- Remove asm/syscalls.h UAPI header and merge to asm/unistd.h
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- Adjust kernel asm/unistd.h
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So now asm/unistd.h UAPI header should show all syscalls for riscv.
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<asm/syscalls.h> may be restored by
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Subject: [PATCH] riscv: restore asm/syscalls.h UAPI header
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Date: Tue, 11 Dec 2018 09:09:35 +0100
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UAPI header asm/syscalls.h was merged into UAPI asm/unistd.h header,
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which did resolve issue with missing syscalls macros resulting in
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glibc (2.28) build failure. It also broke glibc in a different way:
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asm/syscalls.h is being used by glibc. I noticed this while doing
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Fedora 30/Rawhide mass rebuild.
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The patch returns asm/syscalls.h header and incl. it into asm/unistd.h.
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I plan to send a patch to glibc to use asm/unistd.h instead of
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asm/syscalls.h
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In the meantime, we use __has_include__, which was added to GCC 5, to
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check if <asm/syscalls.h> exists before including it. Tested with
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build-many-glibcs.py for riscv against kernel 4.19.12 and 4.20-rc7.
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[BZ #24022]
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* sysdeps/unix/sysv/linux/riscv/flush-icache.c: Check if
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<asm/syscalls.h> exists with __has_include__ before including it.
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---
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sysdeps/unix/sysv/linux/riscv/flush-icache.c | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/sysdeps/unix/sysv/linux/riscv/flush-icache.c b/sysdeps/unix/sysv/linux/riscv/flush-icache.c
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index d612ef4c6c..0b2042620b 100644
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--- a/sysdeps/unix/sysv/linux/riscv/flush-icache.c
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+++ b/sysdeps/unix/sysv/linux/riscv/flush-icache.c
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@@ -21,7 +21,11 @@
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#include <stdlib.h>
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#include <atomic.h>
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#include <sys/cachectl.h>
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-#include <asm/syscalls.h>
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3 years ago
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+#if __has_include (<asm/syscalls.h>)
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3 years ago
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+# include <asm/syscalls.h>
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+#else
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+# include <asm/unistd.h>
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+#endif
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typedef int (*func_type) (void *, void *, unsigned long int);
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--
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2.31.1
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