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Diffstat (limited to 'arch/blackfin/kernel/vmlinux.lds.S')
-rw-r--r--arch/blackfin/kernel/vmlinux.lds.S188
1 files changed, 98 insertions, 90 deletions
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index 7d12c6692a6..c9eec84aa25 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -1,34 +1,9 @@
/*
- * File: arch/blackfin/kernel/vmlinux.lds.S
- * Based on: none - original work
- * Author:
+ * Copyright 2004-2009 Analog Devices Inc.
*
- * Created: Tue Sep 21 2004
- * Description: Master linker script for blackfin architecture
- *
- * Modified:
- * Copyright 2004-2007 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * Licensed under the GPL-2 or later
*/
-#define VMLINUX_SYMBOL(_sym_) _##_sym_
-
#include <asm-generic/vmlinux.lds.h>
#include <asm/mem_map.h>
#include <asm/page.h>
@@ -40,7 +15,12 @@ _jiffies = _jiffies_64;
SECTIONS
{
+#ifdef CONFIG_RAMKERNEL
. = CONFIG_BOOT_LOAD;
+#else
+ . = CONFIG_ROM_BASE;
+#endif
+
/* Neither the text, ro_data or bss section need to be aligned
* So pack them back to back
*/
@@ -50,28 +30,40 @@ SECTIONS
_text = .;
__stext = .;
TEXT_TEXT
+#ifndef CONFIG_SCHEDULE_L1
SCHED_TEXT
+#endif
LOCK_TEXT
+ IRQENTRY_TEXT
KPROBES_TEXT
+#ifdef CONFIG_ROMKERNEL
+ __sinittext = .;
+ INIT_TEXT
+ __einittext = .;
+ EXIT_TEXT
+#endif
*(.text.*)
*(.fixup)
#if !L1_CODE_LENGTH
*(.l1.text)
#endif
-
- . = ALIGN(16);
- ___start___ex_table = .;
- *(__ex_table)
- ___stop___ex_table = .;
-
__etext = .;
}
+ EXCEPTION_TABLE(4)
+ NOTES
+
/* Just in case the first read only is a 32-bit access */
RO_DATA(4)
+ __rodata_end = .;
+#ifdef CONFIG_ROMKERNEL
+ . = CONFIG_BOOT_LOAD;
+ .bss : AT(__rodata_end)
+#else
.bss :
+#endif
{
. = ALIGN(4);
___bss_start = .;
@@ -87,12 +79,15 @@ SECTIONS
___bss_stop = .;
}
+#if defined(CONFIG_ROMKERNEL)
+ .data : AT(LOADADDR(.bss) + SIZEOF(.bss))
+#else
.data :
+#endif
{
__sdata = .;
/* This gets done first, so the glob doesn't suck it in */
- . = ALIGN(32);
- *(.data.cacheline_aligned)
+ CACHELINE_ALIGNED_DATA(32)
#if !L1_DATA_A_LENGTH
. = ALIGN(32);
@@ -109,18 +104,14 @@ SECTIONS
#endif
DATA_DATA
- *(.data.*)
CONSTRUCTORS
- /* make sure the init_task is aligned to the
- * kernel thread size so we can locate the kernel
- * stack properly and quickly.
- */
- . = ALIGN(THREAD_SIZE);
- *(.init_task.data)
+ INIT_TASK_DATA(THREAD_SIZE)
__edata = .;
}
+ __data_lma = LOADADDR(.data);
+ __data_len = SIZEOF(.data);
/* The init section should be last, so when we free it, it goes into
* the general memory pool, and (hopefully) will decrease fragmentation
@@ -130,58 +121,69 @@ SECTIONS
. = ALIGN(PAGE_SIZE);
___init_begin = .;
- .init.text :
- {
- . = ALIGN(PAGE_SIZE);
- __sinittext = .;
- INIT_TEXT
- __einittext = .;
- }
- .init.data :
- {
- . = ALIGN(16);
- INIT_DATA
- }
- .init.setup :
- {
- . = ALIGN(16);
- ___setup_start = .;
- *(.init.setup)
- ___setup_end = .;
- }
- .initcall.init :
+#ifdef CONFIG_RAMKERNEL
+ INIT_TEXT_SECTION(PAGE_SIZE)
+
+ /* We have to discard exit text and such at runtime, not link time, to
+ * handle embedded cross-section references (alt instructions, bug
+ * table, eh_frame, etc...). We need all of our .text up front and
+ * .data after it for PCREL call issues.
+ */
+ .exit.text :
{
- ___initcall_start = .;
- INITCALLS
- ___initcall_end = .;
+ EXIT_TEXT
}
- .con_initcall.init :
+
+ . = ALIGN(16);
+ INIT_DATA_SECTION(16)
+ PERCPU_SECTION(32)
+
+ .exit.data :
{
- ___con_initcall_start = .;
- *(.con_initcall.init)
- ___con_initcall_end = .;
+ EXIT_DATA
}
- SECURITY_INIT
- .init.ramfs :
+
+ .text_l1 L1_CODE_START : AT(LOADADDR(.exit.data) + SIZEOF(.exit.data))
+#else
+ .init.data : AT(__data_lma + __data_len + 32)
{
- . = ALIGN(4);
- ___initramfs_start = .;
- *(.init.ramfs)
- ___initramfs_end = .;
- }
+ __sinitdata = .;
+ INIT_DATA
+ INIT_SETUP(16)
+ INIT_CALLS
+ CON_INITCALL
+ SECURITY_INITCALL
+ INIT_RAM_FS
- __l1_lma_start = .;
+ . = ALIGN(PAGE_SIZE);
+ ___per_cpu_load = .;
+ PERCPU_INPUT(32)
+
+ EXIT_DATA
+ __einitdata = .;
+ }
+ __init_data_lma = LOADADDR(.init.data);
+ __init_data_len = SIZEOF(.init.data);
+ __init_data_end = .;
- .text_l1 L1_CODE_START : AT(LOADADDR(.init.ramfs) + SIZEOF(.init.ramfs))
+ .text_l1 L1_CODE_START : AT(__init_data_lma + __init_data_len)
+#endif
{
. = ALIGN(4);
__stext_l1 = .;
+ *(.l1.text.head)
*(.l1.text)
+#ifdef CONFIG_SCHEDULE_L1
+ SCHED_TEXT
+#endif
. = ALIGN(4);
__etext_l1 = .;
}
+ __text_l1_lma = LOADADDR(.text_l1);
+ __text_l1_len = SIZEOF(.text_l1);
+ ASSERT (__text_l1_len <= L1_CODE_LENGTH, "L1 text overflow!")
- .data_l1 L1_DATA_A_START : AT(LOADADDR(.text_l1) + SIZEOF(.text_l1))
+ .data_l1 L1_DATA_A_START : AT(__text_l1_lma + __text_l1_len)
{
. = ALIGN(4);
__sdata_l1 = .;
@@ -197,8 +199,11 @@ SECTIONS
. = ALIGN(4);
__ebss_l1 = .;
}
+ __data_l1_lma = LOADADDR(.data_l1);
+ __data_l1_len = SIZEOF(.data_l1);
+ ASSERT (__data_l1_len <= L1_DATA_A_LENGTH, "L1 data A overflow!")
- .data_b_l1 L1_DATA_B_START : AT(LOADADDR(.data_l1) + SIZEOF(.data_l1))
+ .data_b_l1 L1_DATA_B_START : AT(__data_l1_lma + __data_l1_len)
{
. = ALIGN(4);
__sdata_b_l1 = .;
@@ -211,10 +216,11 @@ SECTIONS
. = ALIGN(4);
__ebss_b_l1 = .;
}
+ __data_b_l1_lma = LOADADDR(.data_b_l1);
+ __data_b_l1_len = SIZEOF(.data_b_l1);
+ ASSERT (__data_b_l1_len <= L1_DATA_B_LENGTH, "L1 data B overflow!")
- __l2_lma_start = .;
-
- .text_data_l2 L2_START : AT(LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1))
+ .text_data_l2 L2_START : AT(__data_b_l1_lma + __data_b_l1_len)
{
. = ALIGN(4);
__stext_l2 = .;
@@ -236,11 +242,18 @@ SECTIONS
. = ALIGN(4);
__ebss_l2 = .;
}
+ __l2_lma = LOADADDR(.text_data_l2);
+ __l2_len = SIZEOF(.text_data_l2);
+ ASSERT (__l2_len <= L2_LENGTH, "L2 overflow!")
/* Force trailing alignment of our init section so that when we
* free our init memory, we don't leave behind a partial page.
*/
- . = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1);
+#ifdef CONFIG_RAMKERNEL
+ . = __l2_lma + __l2_len;
+#else
+ . = __init_data_end;
+#endif
. = ALIGN(PAGE_SIZE);
___init_end = .;
@@ -250,10 +263,5 @@ SECTIONS
DWARF_DEBUG
- /DISCARD/ :
- {
- EXIT_TEXT
- EXIT_DATA
- *(.exitcall.exit)
- }
+ DISCARDS
}
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