MIPS: OCTEON: omit ELF NOTE segments
OCTEON Pre-SDK-1.8.1 bootloaders can not handle PT_NOTE program headers,
so do not emit them.
Before the patch:
$ readelf --program-headers octeon-vmlinux
Elf file type is EXEC (Executable file)
Entry point 0xffffffff815d09d0
There are 2 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
LOAD 0x0000000000001000 0xffffffff81100000 0xffffffff81100000
0x0000000000b57f80 0x0000000001b86360 RWE 1000
NOTE 0x00000000004e02e0 0xffffffff815df2e0 0xffffffff815df2e0
0x0000000000000024 0x0000000000000024 R 4
After the patch:
$ readelf --program-headers octeon-vmlinux
Elf file type is EXEC (Executable file)
Entry point 0xffffffff815d09d0
There are 1 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
LOAD 0x0000000000001000 0xffffffff81100000 0xffffffff81100000
0x0000000000b57f80 0x0000000001b86360 RWE 1000
The patch was tested on DSR-1000N router.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Matthew Fortune <Matthew.Fortune@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11403/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 06632d6..cce2fcb 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -17,7 +17,9 @@
ENTRY(kernel_entry)
PHDRS {
text PT_LOAD FLAGS(7); /* RWX */
+#ifndef CONFIG_CAVIUM_OCTEON_SOC
note PT_NOTE FLAGS(4); /* R__ */
+#endif /* CAVIUM_OCTEON_SOC */
}
#ifdef CONFIG_32BIT
@@ -71,7 +73,12 @@
__stop___dbe_table = .;
}
- NOTES :text :note
+#ifdef CONFIG_CAVIUM_OCTEON_SOC
+#define NOTES_HEADER
+#else /* CONFIG_CAVIUM_OCTEON_SOC */
+#define NOTES_HEADER :note
+#endif /* CONFIG_CAVIUM_OCTEON_SOC */
+ NOTES :text NOTES_HEADER
.dummy : { *(.dummy) } :text
_sdata = .; /* Start of data section */