new file mode 100644
@@ -0,0 +1,34 @@
+From db704bcc344529039d7fb28be380658625a9c08d Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 28 May 2024 19:34:43 -0700
+Subject: [PATCH] cycleclock: Fix type conversion to match function return type
+
+fixes build with clang19
+
+src/cycleclock.h:208:52: error: implicit conversion changes signedness: 'uint64_t' (aka 'unsigned long long') to 'int64_t' (aka 'long long') [-Werror,-Wsign-conversion]
+ 208 | return (static_cast<uint64_t>(cycles_hi1) << 32) | cycles_lo;
+ | ~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
+1 error generated.
+
+Upstream-Status: Submitted [https://github.com/google/benchmark/pull/1794]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ src/cycleclock.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/cycleclock.h b/src/cycleclock.h
+index a2584376..f96801c5 100644
+--- a/src/cycleclock.h
++++ b/src/cycleclock.h
+@@ -205,7 +205,7 @@ inline BENCHMARK_ALWAYS_INLINE int64_t Now() {
+ "sub %0, zero, %0\n"
+ "and %1, %1, %0\n"
+ : "=r"(cycles_hi0), "=r"(cycles_lo), "=r"(cycles_hi1));
+- return (static_cast<uint64_t>(cycles_hi1) << 32) | cycles_lo;
++ return static_cast<int64_t>((static_cast<uint64_t>(cycles_hi1) << 32) | cycles_lo);
+ #else
+ uint64_t cycles;
+ asm volatile("rdtime %0" : "=r"(cycles));
+--
+2.45.1
+
@@ -4,7 +4,8 @@ SECTION = "libs"
LICENSE = "Apache-2.0"
LIC_FILES_CHKSUM = "file://LICENSE;md5=3b83ef96387f14655fc854ddc3c6bd57"
-SRC_URI = "git://github.com/google/benchmark.git;protocol=https;branch=main"
+SRC_URI = "git://github.com/google/benchmark.git;protocol=https;branch=main \
+ file://0001-cycleclock-Fix-type-conversion-to-match-function-ret.patch"
SRCREV = "a4cf155615c63e019ae549e31703bf367df5b471"
S = "${WORKDIR}/git"
Signed-off-by: Khem Raj <raj.khem@gmail.com> --- ...ype-conversion-to-match-function-ret.patch | 34 +++++++++++++++++++ .../googlebenchmark/googlebenchmark_1.8.4.bb | 3 +- 2 files changed, 36 insertions(+), 1 deletion(-) create mode 100644 meta-oe/recipes-support/googlebenchmark/googlebenchmark/0001-cycleclock-Fix-type-conversion-to-match-function-ret.patch