From: Weijie Gao <hackpascal@gmail.com>
Date: Sat, 14 Jun 2025 15:01:55 +0000 (+0800)
Subject: fix generating syscall-names.h for loongarch64
X-Git-Url: http://git.openwrt.org/%22http:/oss.oetiker.ch/rrdtool//%22/%22http:/oss.oetiker.ch/rrdtool/%22?a=commitdiff_plain;h=cde025d5baf32e62b485ef9f8ba1e835ba8ece0e;p=project%2Fprocd.git

fix generating syscall-names.h for loongarch64

The <bits/syscall.h> from musl loongarch64 arch contains some
indirect syscall definitions:
 #define __NR3264_fcntl                  25
 #define __NR_fcntl                      __NR3264_fcntl

This will result in incorrect contents generated by make_syscall_h_sh:
 [__NR3264_fcntl] = "fcntl",

To fix this issue, all macros staring with __NR3264_ should be also
copied to the generated syscall-names.h

Signed-off-by: Weijie Gao <hackpascal@gmail.com>
---

diff --git a/make_syscall_h.sh b/make_syscall_h.sh
index 17e3bc4..6e2161c 100755
--- a/make_syscall_h.sh
+++ b/make_syscall_h.sh
@@ -12,6 +12,10 @@ CC=$1
 [ -n "$TARGET_CC_NOCACHE" ] && CC=$TARGET_CC_NOCACHE
 
 echo "#include <asm/unistd.h>"
+
+# for loongarch __NR3264_* macros
+echo "#include <sys/syscall.h>" | ${CC} -E -dM - | grep '^#define __NR3264_[a-z0-9_]\+[ \t].*[0-9].*$'
+
 echo "static const char *__syscall_names[] = {"
 echo "#include <sys/syscall.h>" | ${CC} -E -dM - | grep '^#define __NR_[a-z0-9_]\+[ \t].*[0-9].*$' | \
 	LC_ALL=C sed -r -n -e 's/^\#define[ \t]+__NR_([a-z0-9_]+)[ \t]+([ ()+0-9a-zNR_LSYCABE]+)(.*)/ [\2] = "\1",/p'