src: Add patch for .hexagon.attributes orphan section build failure

See the patch commit message for further details. This is currently pending acceptance on the mailing list. Signed-off-by: Nathan Chancellor <[email protected]>
ClangBuiltLinux · Mar 21, 2024 · 76e5c94 · 76e5c94
1 parent fe3dda2
commit 76e5c94
Showing 1 changed file with 49 additions and 0 deletions.
diff --git a/src/20240319_nathan_hexagon_vmlinux_lds_s_handle_attributes_section.patch b/src/20240319_nathan_hexagon_vmlinux_lds_s_handle_attributes_section.patch
@@ -0,0 +1,49 @@
+From git@z Thu Jan  1 00:00:00 1970
+Subject: [PATCH] hexagon: vmlinux.lds.S: Handle attributes section
+From: Nathan Chancellor <[email protected]>
+Date: Tue, 19 Mar 2024 17:37:46 -0700
+Message-Id: <20240319-hexagon-handle-attributes-section-vmlinux-lds-s-v1-1-59855dab8872@kernel.org>
+MIME-Version: 1.0
+Content-Type: text/plain; charset="utf-8"
+Content-Transfer-Encoding: 7bit
+
+After the linked LLVM change, the build fails with
+CONFIG_LD_ORPHAN_WARN_LEVEL="error", which happens with allmodconfig:
+
+  ld.lld: error: vmlinux.a(init/main.o):(.hexagon.attributes) is being placed in '.hexagon.attributes'
+
+Handle the attributes section in a similar manner as arm and riscv by
+adding it after the primary ELF_DETAILS grouping in vmlinux.lds.S, which
+fixes the error.
+
+Cc: [email protected]
+Fixes: 113616ec5b64 ("hexagon: select ARCH_WANT_LD_ORPHAN_WARN")
+Link: https://github.com/llvm/llvm-project/commit/31f4b329c8234fab9afa59494d7f8bdaeaefeaad
+Reviewed-by: Brian Cain <[email protected]>
+Link: https://lore.kernel.org/r/20240319-hexagon-handle-attributes-section-vmlinux-lds-s-v1-1-59855dab8872@kernel.org
+Signed-off-by: Nathan Chancellor <[email protected]>
+---
+ arch/hexagon/kernel/vmlinux.lds.S | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/arch/hexagon/kernel/vmlinux.lds.S b/arch/hexagon/kernel/vmlinux.lds.S
+index 1140051a0c45..1150b77fa281 100644
+--- a/arch/hexagon/kernel/vmlinux.lds.S
++++ b/arch/hexagon/kernel/vmlinux.lds.S
+@@ -63,6 +63,7 @@ SECTIONS
+ 	STABS_DEBUG
+ 	DWARF_DEBUG
+ 	ELF_DETAILS
++	.hexagon.attributes 0 : { *(.hexagon.attributes) }
+
+ 	DISCARDS
+ }
+
+---
+base-commit: e8f897f4afef0031fe618a8e94127a0934896aba
+change-id: 20240319-hexagon-handle-attributes-section-vmlinux-lds-s-2a14b14799c0
+
+Best regards,
+-- 
+Nathan Chancellor <[email protected]>
+