[Buildroot] [PATCH] package/linux-tools: Fix parallel compilation

[Charlie Jenkins]

linux-tools opportunistically set linux as only a patch dependency. This
unfortunately introduces a race condition in the shared linux scripts
when using PER_PACKAGE_DIRECTORIES and using top level parallelism.  The
race manifests as the error "/bin/sh: 1: scripts/basic/fixdep:
Permission denied". This happens when the linux package and the
linux-tools package are being compiled in parallel. During the setup,
each of these tools ends up compiling scripts/basic/fixdep. When the
timing is correct, one of these packages will try to use fixdep while
the other is compiling it, resulting in fixdep being briefly not
available.

To fix this, set linux as a hard dependency instead of a patch
dependency.

Signed-off-by: Charlie Jenkins <charlie at rivosinc.com>
---
While the timing of this seems like it should very rarely be triggered,
on my build server I hit this issue nearly 100% of the time.
---
 package/linux-tools/linux-tools.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/linux-tools/linux-tools.mk b/package/linux-tools/linux-tools.mk
index 81b1fbc17605d6f003558d113143b64b5af6714d..a5d4a66f761fc44b156a92edaaf21774529f52d5 100644
--- a/package/linux-tools/linux-tools.mk
+++ b/package/linux-tools/linux-tools.mk
@@ -20,7 +20,7 @@
 include $(sort $(wildcard package/linux-tools/*.mk.in))
 
 # We only need the kernel to be extracted, not actually built
-LINUX_TOOLS_PATCH_DEPENDENCIES = linux
+LINUX_TOOLS_DEPENDENCIES = linux
 
 # Install Linux kernel tools in the staging directory since some tools
 # may install shared libraries and headers (e.g. cpupower).

---
base-commit: 7336c5fa93a896130511d661f0d42359a046ec9a
change-id: 20250409-fix_linux_tools_parallel-2323829caf82
-- 
- Charlie