Messages in this thread | | | From | Ammar Faizi <> | Subject | [PATCH v1 0/2] nolibc updates for Linux 5.20 | Date | Fri, 20 May 2022 00:21:14 +0700 |
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Hi Willy, Hi Paul,
Not much to do this time. Only small nolibc updates here. There are two patches in this series.
1. Address Willy's comment about overflow checking in the multiplication operation [1]. This patch supports overflow checking for older compiler versions. Currently, we use `__builtin_mul_overflow()` that doesn't exist in older compiler versions. Instead of using this built-in, use a simple division to check for overflow in the `calloc()` function.
2. The compiler can warn us about wrong `printf` arguments. This patch enables the warnings. Currently, only two functions use this attribute: `printf` and `fprintf`.
Hopefully, I can send more updates for 5.21+.
Thank you!
Link: https://lore.kernel.org/lkml/20220330024114.GA18892@1wt.eu [1] Signed-off-by: Alviro Iskandar Setiawan <alviro.iskandar@gnuweeb.org> Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org> ---
Alviro Iskandar Setiawan (1): tools/nolibc/stdio: Add format attribute to enable printf warnings
Ammar Faizi (1): tools/nolibc/stdlib: Support overflow checking for older compiler versions
tools/include/nolibc/stdio.h | 4 ++-- tools/include/nolibc/stdlib.h | 7 +++---- 2 files changed, 5 insertions(+), 6 deletions(-)
base-commit: 9a9e459ed0e76710f1258b6c1d4c0316b52b4b08 prerequisite-patch-id: e4a9acdc12961f2d4c6bb99e4790b8ffa9d15174 prerequisite-patch-id: 5a618e6a72c7d2beef4ba2c2cf01dadfbaf9a996 prerequisite-patch-id: 1bcffd448f6984eee80d86560af19672cd4ae716 prerequisite-patch-id: 3e31c80bd4dd532e30b4bba76e5d98647e21184b prerequisite-patch-id: 34e531967a67791d5b3c3e071527de7235715906 prerequisite-patch-id: 14105c6ae9dcc068ddf12a7c1bf431066199b813 prerequisite-patch-id: 4299173943ea579f538da00488fb1a7b1a690a79 prerequisite-patch-id: dd85164f2ec9eb8cea64ab801abac614f9d0c8f5 prerequisite-patch-id: 2c1b940635d1564e26b9959eb57cf9fa6983cb2f -- Ammar Faizi
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