[Buildroot] [git commit] package/azure-iot-sdk-c: fix build with gcc 11
From: Arnout Vandecappelle (Essensium/Mind) <hidden>
Date: 2021-08-04 20:40:33
Subsystem:
the rest · Maintainer:
Linus Torvalds
commit: https://git.buildroot.net/buildroot/commit/?id=5227649cb63fb26d62ef17d78a6df69eab9bef18 branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master Fix the following build failure with gcc 11: /tmp/instance-7/output-1/build/azure-iot-sdk-c-LTS_01_2021_Ref01/c-utility/src/hmac.c:211:43: error: argument 2 of type 'uint8_t *' {aka 'unsigned char *'} declared as a pointer [-Werror=array-parameter=] 211 | int hmacResult(HMACContext *ctx, uint8_t *digest) | ~~~~~~~~~^~~~~~ In file included from /tmp/instance-7/output-1/build/azure-iot-sdk-c-LTS_01_2021_Ref01/c-utility/src/hmac.c:13: /tmp/instance-7/output-1/build/azure-iot-sdk-c-LTS_01_2021_Ref01/c-utility/inc/azure_c_shared_utility/sha.h:252:42: note: previously declared as an array 'uint8_t[64]' {aka 'unsigned char[64]'} 252 | int hmacResult(HMACContext *ctx, uint8_t digest[USHAMaxHashSize]); | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ Fixes: - http://autobuild.buildroot.org/results/11a6eebd0deea679683a93a5c8355d00acdfe51e Signed-off-by: Fabrice Fontaine <redacted> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <redacted> --- ...hmac-c-fix-mismatching-function-prototype.patch | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+)
diff --git a/package/azure-iot-sdk-c/0001-hmac-c-fix-mismatching-function-prototype.patch b/package/azure-iot-sdk-c/0001-hmac-c-fix-mismatching-function-prototype.patch
new file mode 100644
index 0000000000..0c262e6c46
--- /dev/null
+++ b/package/azure-iot-sdk-c/0001-hmac-c-fix-mismatching-function-prototype.patch@@ -0,0 +1,35 @@ +From 3a7997af72e7a4f70109d1639e6725b39046443e Mon Sep 17 00:00:00 2001 +From: Francesco Giancane <30423178+fgiancane8@users.noreply.github.com> +Date: Fri, 2 Jul 2021 20:47:38 +0200 +Subject: [PATCH] hmac.c: fix mismatching function prototype (#537) + +The reported function raises a warning when compilers assert the flag +`-Warray-parameter=`, signaling that an array-type argument was promoted +to a pointer-type argument. + +While in practice in most C implementations this is correct, fixing the +warning (and, in this case, indicating the maximum size for the array) +would represent a best-practice for finding out-of-bound accesses or +identifying wrongly-sized arrays passed in the function. + +Signed-off-by: Francesco Giancane <francesco.giancane@accenture.com> +[Retrieved from: +https://github.com/Azure/azure-c-shared-utility/commit/3a7997af72e7a4f70109d1639e6725b39046443e] +Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> +--- + src/hmac.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/hmac.c b/src/hmac.c +index 53f2411f8..160af9d2f 100644 +--- a/c-utility/src/hmac.c ++++ b/c-utility/src/hmac.c +@@ -208,7 +208,7 @@ int hmacFinalBits(HMACContext *ctx, + * sha Error Code. + * + */ +-int hmacResult(HMACContext *ctx, uint8_t *digest) ++int hmacResult(HMACContext *ctx, uint8_t digest[USHAMaxHashSize]) + { + if (!ctx) return shaNull; +
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