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Subject[PATCH 1/2] vmlinux.lds.h: Allow architectures to add sections to the front of .bss
Date
From: David Daney <david.daney@cavium.com>

Follow-on MIPS patch will put an object here that needs 64K alignment
to minimize padding.

For those architectures that don't define BSS_FIRST_SECTIONS, there is
no change.

Signed-off-by: David Daney <david.daney@cavium.com>
---
include/asm-generic/vmlinux.lds.h | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 4e2e1cc..d1ea7ce 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -530,9 +530,18 @@
*(.scommon) \
}

+/*
+ * Allow archectures to redefine BSS_FIRST_SECTIONS to add extra
+ * sections to the front of bss.
+ */
+#ifndef BSS_FIRST_SECTIONS
+#define BSS_FIRST_SECTIONS
+#endif
+
#define BSS(bss_align) \
. = ALIGN(bss_align); \
.bss : AT(ADDR(.bss) - LOAD_OFFSET) { \
+ BSS_FIRST_SECTIONS \
*(.bss..page_aligned) \
*(.dynbss) \
*(.bss) \
--
1.7.2.3


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