On Thu, Jan 22, 2026 at 7:31 AM Thomas Perrot via lists.openembedded.org <thomas.perrot=bootlin.com@lists.openembedded.org> wrote:

From: Thomas Perrot <thomas.perrot@bootlin.com>

OpenSBI requires the gcc toolchain to build correctly. Set TOOLCHAIN
explicitly to prevent build failures when using alternative
toolchains.

I am assuming you are having issues compiling it with clang, it would be good to document whats going wrong.

Since it's a bug to address, openSBI does not intend to use a particular compiler.

 

Signed-off-by: Thomas Perrot <thomas.perrot@bootlin.com>
---
 meta/recipes-bsp/opensbi/opensbi_1.8.1.bb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/meta/recipes-bsp/opensbi/opensbi_1.8.1.bb b/meta/recipes-bsp/opensbi/opensbi_1.8.1.bb
index 0a9652c2831e..52d7b38ff2ba 100644
--- a/meta/recipes-bsp/opensbi/opensbi_1.8.1.bb
+++ b/meta/recipes-bsp/opensbi/opensbi_1.8.1.bb
@@ -15,6 +15,8 @@ TARGET_DBGSRC_DIR = "/share/opensbi/*/generic/firmware/"

 TARGET_CC_ARCH += "${LDFLAGS}"

+TOOLCHAIN = "gcc"
+
 RISCV_SBI_FW_TEXT_START ??= "0x80000000"
 EXTRA_OEMAKE += "REPRODUCIBLE=y CROSS_COMPILE=${HOST_PREFIX} ELFFLAGS="${LDFLAGS}" PLATFORM=${RISCV_SBI_PLAT} I=${D} FW_TEXT_START=${RISCV_SBI_FW_TEXT_START}"
 EXTRA_OEMAKE:append:toolchain-clang = " LLVM=y"

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Thomas Perrot, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com