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[v2,15/32] tools/nolibc: use intmax definitions from compiler

Message ID 20250407-nolibc-kselftest-harness-v2-15-f8812f76e930@linutronix.de
State Superseded
Headers show
Series kselftest harness and nolibc compatibility | expand

Commit Message

Thomas Weißschuh April 7, 2025, 6:52 a.m. UTC 
The printf format checking in the compiler uses the intmax types from
the compiler, not libc. This can lead to compiler errors.

Instead use the types already provided by the compiler.

Example issue with clang 19 for arm64:

nolibc-test.c:30:2: error: format specifies type 'uintmax_t' (aka 'unsigned long') but the argument has type 'uintmax_t' (aka 'unsigned long long') [-Werror,-Wformat]

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Willy Tarreau <w@1wt.eu>
---
 tools/include/nolibc/stdint.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/tools/include/nolibc/stdint.h b/tools/include/nolibc/stdint.h
index cd79ddd6170e05b19945e66151bcbcf840028d32..b052ad6303c38f09685b645268dad1fa8848370d 100644
--- a/tools/include/nolibc/stdint.h
+++ b/tools/include/nolibc/stdint.h
@@ -39,8 +39,8 @@  typedef   size_t      uint_fast32_t;
 typedef  int64_t       int_fast64_t;
 typedef uint64_t      uint_fast64_t;
 
-typedef  int64_t           intmax_t;
-typedef uint64_t          uintmax_t;
+typedef __INTMAX_TYPE__    intmax_t;
+typedef __UINTMAX_TYPE__  uintmax_t;
 
 /* limits of integral types */