* [PATCH] powerpc/32: Add .data..LASAN* sections explicitly
@ 2019-06-05 11:32 Mathieu Malaterre
0 siblings, 0 replies; only message in thread
From: Mathieu Malaterre @ 2019-06-05 11:32 UTC (permalink / raw)
To: Michael Ellerman
Cc: Mathieu Malaterre, linux-kernel, Paul Mackerras, linuxppc-dev
When both `CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y` and `CONFIG_KASAN=y`
are set, link step typically produce numberous warnings about orphan
section:
powerpc-linux-gnu-ld: warning: orphan section `.data..LASAN0' from `net/core/filter.o' being placed in section `.data..LASAN0'
powerpc-linux-gnu-ld: warning: orphan section `.data..LASANLOC1' from `net/core/filter.o' being placed in section `.data..LASANLOC1'
This commit remove those warnings produced at W=1.
Reported-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Mathieu Malaterre <malat@debian.org>
---
arch/powerpc/kernel/vmlinux.lds.S | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 060a1acd7c6d..c74f4cb6ec3a 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -307,6 +307,9 @@ SECTIONS
#ifdef CONFIG_PPC32
.data : AT(ADDR(.data) - LOAD_OFFSET) {
DATA_DATA
+#ifdef CONFIG_KASAN
+ *(.data..LASAN*)
+#endif
#ifdef CONFIG_UBSAN
*(.data..Lubsan_data*)
*(.data..Lubsan_type*)
--
2.20.1
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