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Diffstat (limited to 'arch/xtensa/kernel/vmlinux.lds.S')
-rw-r--r--arch/xtensa/kernel/vmlinux.lds.S235
1 files changed, 141 insertions, 94 deletions
diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index d506774f4b0..d16db6df86f 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -7,7 +7,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2001 - 2005 Tensilica Inc.
+ * Copyright (C) 2001 - 2008 Tensilica Inc.
*
* Chris Zankel <chris@zankel.net>
* Marc Gauthier <marc@tensilica.com, marc@alumni.uwaterloo.ca>
@@ -15,8 +15,12 @@
*/
#include <asm-generic/vmlinux.lds.h>
+#include <asm/page.h>
+#include <asm/thread_info.h>
+#include <asm/vectors.h>
#include <variant/core.h>
+#include <platform/hardware.h>
OUTPUT_ARCH(xtensa)
ENTRY(_start)
@@ -26,7 +30,9 @@ jiffies = jiffies_64 + 4;
jiffies = jiffies_64;
#endif
-#define KERNELOFFSET 0xd0001000
+#ifndef KERNELOFFSET
+#define KERNELOFFSET 0xd0003000
+#endif
/* Note: In the following macros, it would be nice to specify only the
vector name and section kind and construct "sym" and "section" using
@@ -78,13 +84,12 @@ SECTIONS
_text = .;
_stext = .;
- _ftext = .;
.text :
{
- /* The .head.text section must be the first section! */
- *(.head.text)
- *(.literal .text)
+ /* The HEAD_TEXT section must be the first section! */
+ HEAD_TEXT
+ TEXT_TEXT
VMLINUX_SYMBOL(__sched_text_start) = .;
*(.sched.literal .sched.text)
VMLINUX_SYMBOL(__sched_text_end) = .;
@@ -104,43 +109,18 @@ SECTIONS
.fixup : { *(.fixup) }
- . = ALIGN(16);
-
- __ex_table : {
- __start___ex_table = .;
- *(__ex_table)
- __stop___ex_table = .;
- }
-
+ EXCEPTION_TABLE(16)
/* Data section */
- . = ALIGN(XCHAL_ICACHE_LINESIZE);
- _fdata = .;
- .data :
- {
- DATA_DATA
- CONSTRUCTORS
- . = ALIGN(XCHAL_ICACHE_LINESIZE);
- *(.data.cacheline_aligned)
- }
-
+ _sdata = .;
+ RW_DATA_SECTION(XCHAL_ICACHE_LINESIZE, PAGE_SIZE, THREAD_SIZE)
_edata = .;
- /* The initial task */
- . = ALIGN(8192);
- .data.init_task : { *(.data.init_task) }
-
/* Initialization code and data: */
- . = ALIGN(1 << 12);
+ . = ALIGN(PAGE_SIZE);
__init_begin = .;
- .init.text : {
- _sinittext = .;
- *(.init.literal) *(.cpuinit.literal)
- *(.devinit.literal) *(.meminit.literal)
- INIT_TEXT
- _einittext = .;
- }
+ INIT_TEXT_SECTION(PAGE_SIZE)
.init.data :
{
@@ -155,6 +135,26 @@ SECTIONS
RELOCATE_ENTRY(_WindowVectors_text,
.WindowVectors.text);
+#if XCHAL_EXCM_LEVEL >= 2
+ RELOCATE_ENTRY(_Level2InterruptVector_text,
+ .Level2InterruptVector.text);
+#endif
+#if XCHAL_EXCM_LEVEL >= 3
+ RELOCATE_ENTRY(_Level3InterruptVector_text,
+ .Level3InterruptVector.text);
+#endif
+#if XCHAL_EXCM_LEVEL >= 4
+ RELOCATE_ENTRY(_Level4InterruptVector_text,
+ .Level4InterruptVector.text);
+#endif
+#if XCHAL_EXCM_LEVEL >= 5
+ RELOCATE_ENTRY(_Level5InterruptVector_text,
+ .Level5InterruptVector.text);
+#endif
+#if XCHAL_EXCM_LEVEL >= 6
+ RELOCATE_ENTRY(_Level6InterruptVector_text,
+ .Level6InterruptVector.text);
+#endif
RELOCATE_ENTRY(_KernelExceptionVector_text,
.KernelExceptionVector.text);
RELOCATE_ENTRY(_UserExceptionVector_text,
@@ -165,38 +165,24 @@ SECTIONS
.DoubleExceptionVector.text);
RELOCATE_ENTRY(_DebugInterruptVector_text,
.DebugInterruptVector.text);
+#if defined(CONFIG_SMP)
+ RELOCATE_ENTRY(_SecondaryResetVector_literal,
+ .SecondaryResetVector.literal);
+ RELOCATE_ENTRY(_SecondaryResetVector_text,
+ .SecondaryResetVector.text);
+#endif
+
__boot_reloc_table_end = ABSOLUTE(.) ;
- }
- . = ALIGN(XCHAL_ICACHE_LINESIZE);
-
- __setup_start = .;
- .init.setup : { *(.init.setup) }
- __setup_end = .;
-
- __initcall_start = .;
- .initcall.init : {
- INITCALLS
+ INIT_SETUP(XCHAL_ICACHE_LINESIZE)
+ INIT_CALLS
+ CON_INITCALL
+ SECURITY_INITCALL
+ INIT_RAM_FS
}
- __initcall_end = .;
-
- __con_initcall_start = .;
- .con_initcall.init : { *(.con_initcall.init) }
- __con_initcall_end = .;
-
- SECURITY_INIT
-
-
-#ifdef CONFIG_BLK_DEV_INITRD
- . = ALIGN(4096);
- __initramfs_start =.;
- .init.ramfs : { *(.init.ramfs) }
- __initramfs_end = .;
-#endif
-
- PERCPU(4096)
+ PERCPU_SECTION(XCHAL_ICACHE_LINESIZE)
/* We need this dummy segment here */
@@ -207,60 +193,116 @@ SECTIONS
SECTION_VECTOR (_WindowVectors_text,
.WindowVectors.text,
- XCHAL_WINDOW_VECTORS_VADDR, 4,
+ WINDOW_VECTORS_VADDR, 4,
.dummy)
SECTION_VECTOR (_DebugInterruptVector_literal,
.DebugInterruptVector.literal,
- XCHAL_DEBUG_VECTOR_VADDR - 4,
+ DEBUG_VECTOR_VADDR - 4,
SIZEOF(.WindowVectors.text),
.WindowVectors.text)
SECTION_VECTOR (_DebugInterruptVector_text,
.DebugInterruptVector.text,
- XCHAL_DEBUG_VECTOR_VADDR,
+ DEBUG_VECTOR_VADDR,
4,
.DebugInterruptVector.literal)
+#undef LAST
+#define LAST .DebugInterruptVector.text
+#if XCHAL_EXCM_LEVEL >= 2
+ SECTION_VECTOR (_Level2InterruptVector_text,
+ .Level2InterruptVector.text,
+ INTLEVEL2_VECTOR_VADDR,
+ SIZEOF(LAST), LAST)
+# undef LAST
+# define LAST .Level2InterruptVector.text
+#endif
+#if XCHAL_EXCM_LEVEL >= 3
+ SECTION_VECTOR (_Level3InterruptVector_text,
+ .Level3InterruptVector.text,
+ INTLEVEL3_VECTOR_VADDR,
+ SIZEOF(LAST), LAST)
+# undef LAST
+# define LAST .Level3InterruptVector.text
+#endif
+#if XCHAL_EXCM_LEVEL >= 4
+ SECTION_VECTOR (_Level4InterruptVector_text,
+ .Level4InterruptVector.text,
+ INTLEVEL4_VECTOR_VADDR,
+ SIZEOF(LAST), LAST)
+# undef LAST
+# define LAST .Level4InterruptVector.text
+#endif
+#if XCHAL_EXCM_LEVEL >= 5
+ SECTION_VECTOR (_Level5InterruptVector_text,
+ .Level5InterruptVector.text,
+ INTLEVEL5_VECTOR_VADDR,
+ SIZEOF(LAST), LAST)
+# undef LAST
+# define LAST .Level5InterruptVector.text
+#endif
+#if XCHAL_EXCM_LEVEL >= 6
+ SECTION_VECTOR (_Level6InterruptVector_text,
+ .Level6InterruptVector.text,
+ INTLEVEL6_VECTOR_VADDR,
+ SIZEOF(LAST), LAST)
+# undef LAST
+# define LAST .Level6InterruptVector.text
+#endif
SECTION_VECTOR (_KernelExceptionVector_literal,
.KernelExceptionVector.literal,
- XCHAL_KERNEL_VECTOR_VADDR - 4,
- SIZEOF(.DebugInterruptVector.text),
- .DebugInterruptVector.text)
+ KERNEL_VECTOR_VADDR - 4,
+ SIZEOF(LAST), LAST)
+#undef LAST
SECTION_VECTOR (_KernelExceptionVector_text,
.KernelExceptionVector.text,
- XCHAL_KERNEL_VECTOR_VADDR,
+ KERNEL_VECTOR_VADDR,
4,
.KernelExceptionVector.literal)
SECTION_VECTOR (_UserExceptionVector_literal,
.UserExceptionVector.literal,
- XCHAL_USER_VECTOR_VADDR - 4,
+ USER_VECTOR_VADDR - 4,
SIZEOF(.KernelExceptionVector.text),
.KernelExceptionVector.text)
SECTION_VECTOR (_UserExceptionVector_text,
.UserExceptionVector.text,
- XCHAL_USER_VECTOR_VADDR,
+ USER_VECTOR_VADDR,
4,
.UserExceptionVector.literal)
SECTION_VECTOR (_DoubleExceptionVector_literal,
.DoubleExceptionVector.literal,
- XCHAL_DOUBLEEXC_VECTOR_VADDR - 16,
+ DOUBLEEXC_VECTOR_VADDR - 40,
SIZEOF(.UserExceptionVector.text),
.UserExceptionVector.text)
SECTION_VECTOR (_DoubleExceptionVector_text,
.DoubleExceptionVector.text,
- XCHAL_DOUBLEEXC_VECTOR_VADDR,
- 32,
+ DOUBLEEXC_VECTOR_VADDR,
+ 40,
.DoubleExceptionVector.literal)
. = (LOADADDR( .DoubleExceptionVector.text ) + SIZEOF( .DoubleExceptionVector.text ) + 3) & ~ 3;
- . = ALIGN(1 << 12);
- __init_end = .;
+#if defined(CONFIG_SMP)
- . = ALIGN(8192);
+ SECTION_VECTOR (_SecondaryResetVector_literal,
+ .SecondaryResetVector.literal,
+ RESET_VECTOR1_VADDR - 4,
+ SIZEOF(.DoubleExceptionVector.text),
+ .DoubleExceptionVector.text)
- /* BSS section */
- _bss_start = .;
- .bss : { *(.bss.page_aligned) *(.bss) }
- _bss_end = .;
+ SECTION_VECTOR (_SecondaryResetVector_text,
+ .SecondaryResetVector.text,
+ RESET_VECTOR1_VADDR,
+ 4,
+ .SecondaryResetVector.literal)
+
+ . = LOADADDR(.SecondaryResetVector.text)+SIZEOF(.SecondaryResetVector.text);
+
+#endif
+
+ . = ALIGN(PAGE_SIZE);
+
+ __init_end = .;
+
+ BSS_SECTION(0, 8192, 0)
_end = .;
@@ -269,25 +311,26 @@ SECTIONS
. = ALIGN(0x10);
.bootstrap : { *(.bootstrap.literal .bootstrap.text .bootstrap.data) }
- . = ALIGN(0x1000);
- __initrd_start = .;
- .initrd : { *(.initrd) }
- __initrd_end = .;
-
- .ResetVector.text XCHAL_RESET_VECTOR_VADDR :
+ .ResetVector.text RESET_VECTOR_VADDR :
{
*(.ResetVector.text)
}
- /* Sections to be discarded */
- /DISCARD/ :
+
+ /*
+ * This is a remapped copy of the Secondary Reset Vector Code.
+ * It keeps gdb in sync with the PC after switching
+ * to the temporary mapping used while setting up
+ * the V2 MMU mappings for Linux.
+ *
+ * Only debug information about this section is put in the kernel image.
+ */
+ .SecondaryResetVector.remapped_text 0x46000000 (INFO):
{
- *(.exit.literal)
- EXIT_TEXT
- EXIT_DATA
- *(.exitcall.exit)
+ *(.SecondaryResetVector.remapped_text)
}
+
.xt.lit : { *(.xt.lit) }
.xt.prop : { *(.xt.prop) }
@@ -320,4 +363,8 @@ SECTIONS
*(.xt.lit)
*(.gnu.linkonce.p*)
}
+
+ /* Sections to be discarded */
+ DISCARDS
+ /DISCARD/ : { *(.exit.literal) }
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-11 18:12:16 +0000