new file mode 100644
@@ -0,0 +1,67 @@
+<asm/syscalls.h> has been removed by
+
+commit 27f8899d6002e11a6e2d995e29b8deab5aa9cc25
+Author: David Abdurachmanov <david.abdurachmanov@gmail.com>
+Date: Thu Nov 8 20:02:39 2018 +0100
+
+ riscv: add asm/unistd.h UAPI header
+
+ Marcin Juszkiewicz reported issues while generating syscall table for riscv
+ using 4.20-rc1. The patch refactors our unistd.h files to match some other
+ architectures.
+
+ - Add asm/unistd.h UAPI header, which has __ARCH_WANT_NEW_STAT only for 64-bit
+ - Remove asm/syscalls.h UAPI header and merge to asm/unistd.h
+ - Adjust kernel asm/unistd.h
+
+ So now asm/unistd.h UAPI header should show all syscalls for riscv.
+
+<asm/syscalls.h> may be restored by
+
+Subject: [PATCH] riscv: restore asm/syscalls.h UAPI header
+Date: Tue, 11 Dec 2018 09:09:35 +0100
+
+UAPI header asm/syscalls.h was merged into UAPI asm/unistd.h header,
+which did resolve issue with missing syscalls macros resulting in
+glibc (2.28) build failure. It also broke glibc in a different way:
+asm/syscalls.h is being used by glibc. I noticed this while doing
+Fedora 30/Rawhide mass rebuild.
+
+The patch returns asm/syscalls.h header and incl. it into asm/unistd.h.
+I plan to send a patch to glibc to use asm/unistd.h instead of
+asm/syscalls.h
+
+In the meantime, we use __has_include__, which was added to GCC 5, to
+check if <asm/syscalls.h> exists before including it. Tested with
+build-many-glibcs.py for riscv against kernel 4.19.12 and 4.20-rc7.
+
+ [BZ #24022]
+ * sysdeps/unix/sysv/linux/riscv/flush-icache.c: Check if
+ <asm/syscalls.h> exists with __has_include__ before including it.
+
+[Mark: patch retrieved from
+https://sourceware.org/git/?p=glibc.git;a=commit;h=0b9c84906f653978fb8768c7ebd0ee14a47e662e]
+
+Signed-off-by: Mark Corbin <mark.corbin@embecosm.com>
+---
+ sysdeps/unix/sysv/linux/riscv/flush-icache.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/sysdeps/unix/sysv/linux/riscv/flush-icache.c b/sysdeps/unix/sysv/linux/riscv/flush-icache.c
+index d612ef4c6c..d0ecec5107 100644
+--- a/sysdeps/unix/sysv/linux/riscv/flush-icache.c
++++ b/sysdeps/unix/sysv/linux/riscv/flush-icache.c
+@@ -21,7 +21,11 @@
+ #include <stdlib.h>
+ #include <atomic.h>
+ #include <sys/cachectl.h>
++#if __has_include__ (<asm/syscalls.h>)
+ #include <asm/syscalls.h>
++#else
++#include <asm/unistd.h>
++#endif
+
+ typedef int (*func_type) (void *, void *, unsigned long int);
+
+--
+2.19.2
UAPI header file asm/syscalls.h has been merged into the UAPI asm/unistd.h header file for the RISC-V architecture in the 4.20 kernel. This causes the glibc 2.28 build to break. This commit applies the upstream glibc patch for this issue. Fixes: http://autobuild.buildroot.net/results/8190eb74b2b97911e03671138487d747fcb22cba/ Signed-off-by: Mark Corbin <mark.corbin@embecosm.com> --- Changes v1 -> v2: - referenced the commit rather than the mailing list message as the source of the upstream patch (Yann) --- .../0002-fix-syscalls-header-for-riscv.patch | 67 +++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 package/glibc/glibc-2.28-50-gb8dd0f42780a3133c02f064a2c0c5c4e7ab61aaa/0002-fix-syscalls-header-for-riscv.patch