---

yaml --- r: 43030 b: refs/heads/master c: 6569580 h: refs/heads/master v: v3
git-mirror · Dec 7, 2006 · 7bfb9bf · 7bfb9bf
1 parent 2d1d6cc
commit 7bfb9bf
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Showing 3 changed files with 69 additions and 56 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 67fd44fea274a5033ceb90284683bc44df61df54
+refs/heads/master: 6569580de7ae367def89b7671029cb97c1965574
diff --git a/trunk/arch/i386/kernel/vmlinux.lds.S b/trunk/arch/i386/kernel/vmlinux.lds.S
@@ -1,5 +1,11 @@
 /* ld script to make i386 Linux kernel
  * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>;
+ *
+ * Don't define absolute symbols until and unless you know that symbol
+ * value is should remain constant even if kernel image is relocated
+ * at run time. Absolute symbols are not relocated. If symbol value should
+ * change if kernel is relocated, make the symbol section relative and
+ * put it inside the section definition.
  */
 
 #define LOAD_OFFSET __PAGE_OFFSET
@@ -24,31 +30,32 @@ SECTIONS
   . = __KERNEL_START;
   phys_startup_32 = startup_32 - LOAD_OFFSET;
   /* read-only */
-  _text = .;			/* Text and read-only data */
   .text : AT(ADDR(.text) - LOAD_OFFSET) {
+  	_text = .;			/* Text and read-only data */
 	*(.text)
 	SCHED_TEXT
 	LOCK_TEXT
 	KPROBES_TEXT
 	*(.fixup)
 	*(.gnu.warning)
-	} :text = 0x9090
-
-  _etext = .;			/* End of text section */
+  	_etext = .;			/* End of text section */
+  } :text = 0x9090
 
   . = ALIGN(16);		/* Exception table */
-  __start___ex_table = .;
-  __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { *(__ex_table) }
-  __stop___ex_table = .;
+  __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
+  	__start___ex_table = .;
+	 *(__ex_table)
+  	__stop___ex_table = .;
+  }
 
   RODATA
 
   . = ALIGN(4);
-  __tracedata_start = .;
   .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {
+  	__tracedata_start = .;
 	*(.tracedata)
+  	__tracedata_end = .;
   }
-  __tracedata_end = .;
 
   /* writeable */
   . = ALIGN(4096);
@@ -58,10 +65,12 @@ SECTIONS
 	} :data
 
   . = ALIGN(4096);
-  __nosave_begin = .;
-  .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) }
-  . = ALIGN(4096);
-  __nosave_end = .;
+  .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
+  	__nosave_begin = .;
+	*(.data.nosave)
+  	. = ALIGN(4096);
+  	__nosave_end = .;
+  }
 
   . = ALIGN(4096);
   .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
@@ -75,8 +84,10 @@ SECTIONS
 
   /* rarely changed data like cpu maps */
   . = ALIGN(32);
-  .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { *(.data.read_mostly) }
-  _edata = .;			/* End of data section */
+  .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
+	*(.data.read_mostly)
+	_edata = .;		/* End of data section */
+  }
 
 #ifdef CONFIG_STACK_UNWIND
   . = ALIGN(4);
@@ -94,54 +105,56 @@ SECTIONS
 
   /* might get freed after init */
   . = ALIGN(4096);
-  __smp_alt_begin = .;
-  __smp_alt_instructions = .;
   .smp_altinstructions : AT(ADDR(.smp_altinstructions) - LOAD_OFFSET) {
+	__smp_alt_begin = .;
+	__smp_alt_instructions = .;
 	*(.smp_altinstructions)
+	__smp_alt_instructions_end = .;
   }
-  __smp_alt_instructions_end = .;
   . = ALIGN(4);
-  __smp_locks = .;
   .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
+  	__smp_locks = .;
 	*(.smp_locks)
+	__smp_locks_end = .;
   }
-  __smp_locks_end = .;
   .smp_altinstr_replacement : AT(ADDR(.smp_altinstr_replacement) - LOAD_OFFSET) {
 	*(.smp_altinstr_replacement)
+  	__smp_alt_end = .;
   }
   . = ALIGN(4096);
-  __smp_alt_end = .;
 
   /* will be freed after init */
   . = ALIGN(4096);		/* Init code and data */
-  __init_begin = .;
   .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
+  	__init_begin = .;
 	_sinittext = .;
 	*(.init.text)
 	_einittext = .;
   }
   .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { *(.init.data) }
   . = ALIGN(16);
-  __setup_start = .;
-  .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) { *(.init.setup) }
-  __setup_end = .;
-  __initcall_start = .;
+  .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
+  	__setup_start = .;
+	*(.init.setup)
+  	__setup_end = .;
+   }
   .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
+  	__initcall_start = .;
 	INITCALLS
+  	__initcall_end = .;
   }
-  __initcall_end = .;
-  __con_initcall_start = .;
   .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
+  	__con_initcall_start = .;
 	*(.con_initcall.init)
+  	__con_initcall_end = .;
   }
-  __con_initcall_end = .;
   SECURITY_INIT
   . = ALIGN(4);
-  __alt_instructions = .;
   .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
+  	__alt_instructions = .;
 	*(.altinstructions)
+	__alt_instructions_end = .;
   }
-  __alt_instructions_end = .; 
   .altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
 	*(.altinstr_replacement)
   }
@@ -150,32 +163,32 @@ SECTIONS
   .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { *(.exit.text) }
   .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { *(.exit.data) }
   . = ALIGN(4096);
-  __initramfs_start = .;
-  .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) }
-  __initramfs_end = .;
+  .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
+	__initramfs_start = .;
+	*(.init.ramfs)
+	__initramfs_end = .;
+  }
   . = ALIGN(L1_CACHE_BYTES);
-  __per_cpu_start = .;
-  .data.percpu  : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) }
-  __per_cpu_end = .;
+  .data.percpu  : AT(ADDR(.data.percpu) - LOAD_OFFSET) {
+	__per_cpu_start = .;
+	*(.data.percpu)
+	__per_cpu_end = .;
+  }
   . = ALIGN(4096);
-  __init_end = .;
   /* freed after init ends here */
 
-  __bss_start = .;		/* BSS */
-  .bss.page_aligned : AT(ADDR(.bss.page_aligned) - LOAD_OFFSET) {
-	*(.bss.page_aligned)
-  }
   .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
+	__init_end = .;
+	__bss_start = .;		/* BSS */
+	*(.bss.page_aligned)
 	*(.bss)
+	. = ALIGN(4);
+	__bss_stop = .;
+  	_end = . ;
+	/* This is where the kernel creates the early boot page tables */
+	. = ALIGN(4096);
+	pg0 = . ;
   }
-  . = ALIGN(4);
-  __bss_stop = .; 
-
-  _end = . ;
-
-  /* This is where the kernel creates the early boot page tables */
-  . = ALIGN(4096);
-  pg0 = .;
 
   /* Sections to be discarded */
   /DISCARD/ : {

diff --git a/trunk/include/asm-generic/vmlinux.lds.h b/trunk/include/asm-generic/vmlinux.lds.h
@@ -11,8 +11,8 @@
 
 #define RODATA								\
 	. = ALIGN(4096);						\
-	__start_rodata = .;						\
 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
+		VMLINUX_SYMBOL(__start_rodata) = .;			\
 		*(.rodata) *(.rodata.*)					\
 		*(__vermagic)		/* Kernel version magic */	\
 	}								\
@@ -119,17 +119,17 @@
 		*(__ksymtab_strings)					\
 	}								\
 									\
+	/* Unwind data binary search table */				\
+	EH_FRAME_HDR							\
+									\
 	/* Built-in module parameters. */				\
 	__param : AT(ADDR(__param) - LOAD_OFFSET) {			\
 		VMLINUX_SYMBOL(__start___param) = .;			\
 		*(__param)						\
 		VMLINUX_SYMBOL(__stop___param) = .;			\
+		VMLINUX_SYMBOL(__end_rodata) = .;			\
 	}								\
 									\
-	/* Unwind data binary search table */				\
-	EH_FRAME_HDR							\
-									\
-	__end_rodata = .;						\
 	. = ALIGN(4096);
 
 #define SECURITY_INIT							\