linux-kernel - [PATCH] tools/nolibc: add stdbool.h header

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Message-Id: <20240725-nolibc-stdbool-v1-1-a6ee2c80bcde@weissschuh.net>
Date: Thu, 25 Jul 2024 19:10:44 +0200
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Willy Tarreau <w@....eu>
Cc: linux-kernel@...r.kernel.org, 
 Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH] tools/nolibc: add stdbool.h header

stdbool.h is very simple.
Provide an implementation for the user convenience.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 tools/include/nolibc/Makefile  |  1 +
 tools/include/nolibc/nolibc.h  |  3 ++-
 tools/include/nolibc/stdbool.h | 16 ++++++++++++++++
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/tools/include/nolibc/Makefile b/tools/include/nolibc/Makefile
index e69c26abe1ea..a1f55fb24bb3 100644
--- a/tools/include/nolibc/Makefile
+++ b/tools/include/nolibc/Makefile
@@ -35,6 +35,7 @@ all_files := \
 		stackprotector.h \
 		std.h \
 		stdarg.h \
+		stdbool.h \
 		stdint.h \
 		stdlib.h \
 		string.h \
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index 989e707263a4..92436b1e4441 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -74,7 +74,8 @@
  *            -I../nolibc -o hello hello.c -lgcc
  *
  * The available standard (but limited) include files are:
- *   ctype.h, errno.h, signal.h, stdarg.h, stdio.h, stdlib.h, string.h, time.h
+ *   ctype.h, errno.h, signal.h, stdarg.h, stdbool.h stdio.h, stdlib.h,
+ *   string.h, time.h
  *
  * In addition, the following ones are expected to be provided by the compiler:
  *   float.h, stddef.h
diff --git a/tools/include/nolibc/stdbool.h b/tools/include/nolibc/stdbool.h
new file mode 100644
index 000000000000..709abed93425
--- /dev/null
+++ b/tools/include/nolibc/stdbool.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * Boolean types support for NOLIBC
+ * Copyright (C) 2024 Thomas Weißschuh <linux@...ssschuh.net>
+ */
+
+#ifndef _NOLIBC_STDBOOL_H
+#define _NOLIBC_STDBOOL_H
+
+#define _Bool bool
+#define true 1
+#define false 0
+
+#define __bool_true_false_are_defined 1
+
+#endif /* _NOLIBC_STDBOOL_H */

---
base-commit: 6ca8f2e20bd1ced8a7cd12b3ae4b1ceca85cfc2b
change-id: 20240725-nolibc-stdbool-15ea482d1b42

Best regards,
-- 
Thomas Weißschuh <linux@...ssschuh.net>