[Concept,12/13] Makefile: Only run standalone ulib examples for sandbox

Message ID 20260214021317.816170-13-sjg@u-boot.org
State New
Headers
Series ulib: Support building examples for x86 |

Commit Message

Simon Glass Feb. 14, 2026, 2:13 a.m. UTC
  From: Simon Glass <simon.glass@canonical.com>

The examples_ulib target invokes the standalone Makefile in
examples/ulib/ which uses sandbox-specific headers and linking flags
(e.g. -lpthread, -ldl, arch/sandbox/include). Running this for
non-sandbox builds like qemu-x86 causes compilation failures due to
missing sandbox-specific CONFIG symbols and GD_SIZE mismatches.

Non-sandbox architectures already build ulib examples via the kbuild
path (examples/ulib/Kbuild + arch-specific re-linking), so guard the
standalone Makefile target with CONFIG_SANDBOX.

Co-developed-by: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
---

 Makefile | 2 ++
 1 file changed, 2 insertions(+)
  

Patch

diff --git a/Makefile b/Makefile
index e61e1c7fe94..f1fdace661d 100644
--- a/Makefile
+++ b/Makefile
@@ -1061,11 +1061,13 @@  ifeq ($(NO_LIBS),)
 INPUTS-$(CONFIG_ULIB_SHARED_LIB) += libu-boot.so test/ulib/ulib_test
 INPUTS-$(CONFIG_ULIB) += libu-boot.a
 ifdef CONFIG_EXAMPLES
+ifdef CONFIG_SANDBOX
 INPUTS-$(CONFIG_ULIB) += examples_ulib examples_rust
 endif
 endif
 endif
 endif
+endif
 
 LDFLAGS_u-boot += $(LDFLAGS_FINAL)