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authorJeff Dike <jdike@addtoit.com>2007-08-30 23:56:17 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-08-31 01:42:22 -0700
commitc7ec16da5adc1c1b341b2a83bde7add17dcf811a (patch)
tree4e11748671da5c83c894f1fe96ce999f33b52e7d
parent641916881322a2dee5b120d509a3bdd05a502510 (diff)
uml: fix linker script alignment bugs
Fix a class of bugs in the UML linker scripts which caused section boundary variables to sometimes not line up with their sections. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/um/kernel/dyn.lds.S12
-rw-r--r--arch/um/kernel/uml.lds.S11
-rw-r--r--include/asm-um/common.lds.S124
3 files changed, 90 insertions, 57 deletions
diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S
index 24547741b205..41850906116e 100644
--- a/arch/um/kernel/dyn.lds.S
+++ b/arch/um/kernel/dyn.lds.S
@@ -71,11 +71,13 @@ SECTIONS
*(.gnu.warning)
. = ALIGN(4096);
- __syscall_stub_start = .;
- *(.__syscall_stub*)
- __syscall_stub_end = .;
- . = ALIGN(4096);
} =0x90909090
+ . = ALIGN(4096);
+ .syscall_stub : {
+ __syscall_stub_start = .;
+ *(.__syscall_stub*)
+ __syscall_stub_end = .;
+ }
.fini : {
KEEP (*(.fini))
} =0x90909090
@@ -138,8 +140,8 @@ SECTIONS
.got : { *(.got.plt) *(.got) }
_edata = .;
PROVIDE (edata = .);
- __bss_start = .;
.bss : {
+ __bss_start = .;
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index 307b9373676b..81acdc24348e 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -44,12 +44,13 @@ SECTIONS
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t*)
+ }
- . = ALIGN(4096);
- __syscall_stub_start = .;
- *(.__syscall_stub*)
- __syscall_stub_end = .;
- . = ALIGN(4096);
+ . = ALIGN(4096);
+ .syscall_stub : {
+ __syscall_stub_start = .;
+ *(.__syscall_stub*)
+ __syscall_stub_end = .;
}
#include "asm/common.lds.S"
diff --git a/include/asm-um/common.lds.S b/include/asm-um/common.lds.S
index e3f010bd12b3..cb0248616d49 100644
--- a/include/asm-um/common.lds.S
+++ b/include/asm-um/common.lds.S
@@ -16,82 +16,112 @@
. = ALIGN(4096);
.note : { *(.note.*) }
- __start___ex_table = .;
- __ex_table : { *(__ex_table) }
- __stop___ex_table = .;
+ __ex_table : {
+ __start___ex_table = .;
+ *(__ex_table)
+ __stop___ex_table = .;
+ }
BUG_TABLE
- __uml_setup_start = .;
- .uml.setup.init : { *(.uml.setup.init) }
- __uml_setup_end = .;
+ .uml.setup.init : {
+ __uml_setup_start = .;
+ *(.uml.setup.init)
+ __uml_setup_end = .;
+ }
- __uml_help_start = .;
- .uml.help.init : { *(.uml.help.init) }
- __uml_help_end = .;
+ .uml.help.init : {
+ __uml_help_start = .;
+ *(.uml.help.init)
+ __uml_help_end = .;
+ }
- __uml_postsetup_start = .;
- .uml.postsetup.init : { *(.uml.postsetup.init) }
- __uml_postsetup_end = .;
+ .uml.postsetup.init : {
+ __uml_postsetup_start = .;
+ *(.uml.postsetup.init)
+ __uml_postsetup_end = .;
+ }
- __setup_start = .;
- .init.setup : { *(.init.setup) }
- __setup_end = .;
+ .init.setup : {
+ __setup_start = .;
+ *(.init.setup)
+ __setup_end = .;
+ }
. = ALIGN(32);
- __per_cpu_start = . ;
- .data.percpu : { *(.data.percpu) }
- __per_cpu_end = . ;
+ .data.percpu : {
+ __per_cpu_start = . ;
+ *(.data.percpu)
+ __per_cpu_end = . ;
+ }
- __initcall_start = .;
.initcall.init : {
+ __initcall_start = .;
INITCALLS
+ __initcall_end = .;
}
- __initcall_end = .;
- __con_initcall_start = .;
- .con_initcall.init : { *(.con_initcall.init) }
- __con_initcall_end = .;
+ .con_initcall.init : {
+ __con_initcall_start = .;
+ *(.con_initcall.init)
+ __con_initcall_end = .;
+ }
- __uml_initcall_start = .;
- .uml.initcall.init : { *(.uml.initcall.init) }
- __uml_initcall_end = .;
+ .uml.initcall.init : {
+ __uml_initcall_start = .;
+ *(.uml.initcall.init)
+ __uml_initcall_end = .;
+ }
__init_end = .;
SECURITY_INIT
- __exitcall_begin = .;
- .exitcall : { *(.exitcall.exit) }
- __exitcall_end = .;
+ .exitcall : {
+ __exitcall_begin = .;
+ *(.exitcall.exit)
+ __exitcall_end = .;
+ }
- __uml_exitcall_begin = .;
- .uml.exitcall : { *(.uml.exitcall.exit) }
- __uml_exitcall_end = .;
+ .uml.exitcall : {
+ __uml_exitcall_begin = .;
+ *(.uml.exitcall.exit)
+ __uml_exitcall_end = .;
+ }
. = ALIGN(4);
- __alt_instructions = .;
- .altinstructions : { *(.altinstructions) }
- __alt_instructions_end = .;
+ .altinstructions : {
+ __alt_instructions = .;
+ *(.altinstructions)
+ __alt_instructions_end = .;
+ }
.altinstr_replacement : { *(.altinstr_replacement) }
/* .exit.text is discard at runtime, not link time, to deal with references
from .altinstructions and .eh_frame */
.exit.text : { *(.exit.text) }
.exit.data : { *(.exit.data) }
- __preinit_array_start = .;
- .preinit_array : { *(.preinit_array) }
- __preinit_array_end = .;
- __init_array_start = .;
- .init_array : { *(.init_array) }
- __init_array_end = .;
- __fini_array_start = .;
- .fini_array : { *(.fini_array) }
- __fini_array_end = .;
+ .preinit_array : {
+ __preinit_array_start = .;
+ *(.preinit_array)
+ __preinit_array_end = .;
+ }
+ .init_array : {
+ __init_array_start = .;
+ *(.init_array)
+ __init_array_end = .;
+ }
+ .fini_array : {
+ __fini_array_start = .;
+ *(.fini_array)
+ __fini_array_end = .;
+ }
. = ALIGN(4096);
- __initramfs_start = .;
- .init.ramfs : { *(.init.ramfs) }
- __initramfs_end = .;
+ .init.ramfs : {
+ __initramfs_start = .;
+ *(.init.ramfs)
+ __initramfs_end = .;
+ }
/* Sections to be discarded */
/DISCARD/ : {

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