On Fri Aug 14, 2026 at 7:18 AM CEST, Jaipaul Cheernam wrote: > OpenSSL 4.0 removed the ENGINE API entirely. u-boot-tools uses > ENGINE_get_id, ENGINE_load_public_key, ENGINE_finish, ENGINE_free > in lib/rsa/rsa-sign.c which causes link failures. > > Backport the Provider API support patch from upstream u-boot which > adds OpenSSL Provider support while maintaining backward compatibility > with older OpenSSL versions that still have ENGINE. > > Upstream-Status: Backport [https://github.com/u-boot/u-boot/pull/918] > Signed-off-by: Jaipaul Cheernam <[email protected]> > ---
Hi Jaipaul, I know this is just an RFC, but I tried a build on the autobuilder: it looks like more changes are needed to fix u-boot builds. Maybe only for riscv64 platforms: ERROR: u-boot-1_2026.07-r0 do_compile: Execution of '/srv/pokybuild/yocto-worker/qemuriscv64/build/build/tmp/work/qemuriscv64-poky-linux/u-boot/2026.07/temp/run.do_compile.3905853' failed with exit code 1 ... | rsa-sign.c:(.text+0xb): undefined reference to `ENGINE_load_builtin_engines' | /usr/lib64/gcc/x86_64-suse-linux/15/../../../../x86_64-suse-linux/bin/ld: rsa-sign.c:(.text+0x13): undefined reference to `ENGINE_by_id' | /usr/lib64/gcc/x86_64-suse-linux/15/../../../../x86_64-suse-linux/bin/ld: rsa-sign.c:(.text+0x27): undefined reference to `ENGINE_init' | /usr/lib64/gcc/x86_64-suse-linux/15/../../../../x86_64-suse-linux/bin/ld: rsa-sign.c:(.text+0x33): undefined reference to `ENGINE_set_default_RSA' | /usr/lib64/gcc/x86_64-suse-linux/15/../../../../x86_64-suse-linux/bin/ld: rsa-sign.c:(.text+0x58): undefined reference to `ENGINE_ctrl_cmd_string' | /usr/lib64/gcc/x86_64-suse-linux/15/../../../../x86_64-suse-linux/bin/ld: rsa-sign.c:(.text+0x8f): undefined reference to `ENGINE_free' | /usr/lib64/gcc/x86_64-suse-linux/15/../../../../x86_64-suse-linux/bin/ld: rsa-sign.c:(.text+0xbf): undefined reference to `ENGINE_finish' | /usr/lib64/gcc/x86_64-suse-linux/15/../../../../x86_64-suse-linux/bin/ld: tools/generated/lib/rsa/rsa-sign.o: in function `rsa_engine_get_priv_key': | rsa-sign.c:(.text+0x274): undefined reference to `ENGINE_get_id' ... | collect2: error: ld returned 1 exit status ... https://autobuilder.yoctoproject.org/valkyrie/#/builders/45/builds/2124 https://autobuilder.yoctoproject.org/valkyrie/#/builders/56/builds/2173 Thanks, Mathieu -- Mathieu Dubois-Briand, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
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