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Subject[tip: core/rcu] tools/nolibc: Fix position of -lgcc in the documented example
The following commit has been merged into the core/rcu branch of tip:

Commit-ID: 3c6ce7a5363723a05bfe3ee03a8d4a9b66841ae4
Gitweb: https://git.kernel.org/tip/3c6ce7a5363723a05bfe3ee03a8d4a9b66841ae4
Author: Willy Tarreau <w@1wt.eu>
AuthorDate: Thu, 21 Jan 2021 08:20:31 +01:00
Committer: Paul E. McKenney <paulmck@kernel.org>
CommitterDate: Thu, 21 Jan 2021 10:06:45 -08:00

tools/nolibc: Fix position of -lgcc in the documented example

The documentation header in the nolibc.h file provides an example command
line, but it places the -lgcc argument before the source files, which
can fail with libgcc.a (e.g. on ARM when uidiv is needed). This commit
therefore moves the -lgcc to the end of the command line, hopefully
before this example leaks into makefiles. This is a port of nolibc's
upstream commit b5e282089223 to the Linux kernel.

Fixes: 66b6f755ad45 ("rcutorture: Import a copy of nolibc")
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com> [arm64]
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
tools/include/nolibc/nolibc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index 618acad..8b7a983 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -71,7 +71,7 @@
*
* A simple static executable may be built this way :
* $ gcc -fno-asynchronous-unwind-tables -fno-ident -s -Os -nostdlib \
- * -static -include nolibc.h -lgcc -o hello hello.c
+ * -static -include nolibc.h -o hello hello.c -lgcc
*
* A very useful calling convention table may be found here :
* http://man7.org/linux/man-pages/man2/syscall.2.html
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