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authorDavid Daney <david.daney@cavium.com>2012-08-14 11:08:00 -0700
committerRalf Baechle <ralf@linux-mips.org>2012-10-11 11:02:37 +0200
commitc87728ca82a1057eb8f84e139bf416ca5488b6fb (patch)
treeecf73f882cf210094be75e129bd4071223aca131 /include/asm-generic
parentb4f2a17ba96a79f1069a2c0f1c648cf6d497f2f3 (diff)
vmlinux.lds.h: Allow architectures to add sections to the front of .bss
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> Cc: linux-mips@linux-mips.org Cc: linux-arch@vger.kernel.org, Cc: linux-kernel@vger.kernel.org Acked-by: Arnd Bergmann <arnd@arndb.de> Patchwork: https://patchwork.linux-mips.org/patch/4221/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/vmlinux.lds.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 4e2e1cc505a..d1ea7ce0b4c 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) \