a3b81113fb
When passing a zero address to kallsyms_lookup(), the kernel thought it was a valid kernel address, even if it is not. This is because is_ksym_addr() called is_kernel_extratext() and checked against labels that don't exist on many archs (which default as zero). Since PPC was the only kernel which defines _extra_text, (in 2005), and no longer needs it, this patch removes _extra_text support. For some history (provided by Jon): http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019734.html http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019736.html http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019751.html [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jon Loeliger <jdl@freescale.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
164 lines
3.2 KiB
ArmAsm
164 lines
3.2 KiB
ArmAsm
#include <asm-generic/vmlinux.lds.h>
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OUTPUT_ARCH(powerpc:common)
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jiffies = jiffies_64 + 4;
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SECTIONS
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{
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/* Read-only sections, merged into text segment: */
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. = + SIZEOF_HEADERS;
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.interp : { *(.interp) }
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.hash : { *(.hash) }
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.gnu.hash : { *(.gnu.hash) }
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.dynsym : { *(.dynsym) }
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.dynstr : { *(.dynstr) }
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.rel.text : { *(.rel.text) }
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.rela.text : { *(.rela.text) }
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.rel.data : { *(.rel.data) }
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.rela.data : { *(.rela.data) }
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.rel.rodata : { *(.rel.rodata) }
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.rela.rodata : { *(.rela.rodata) }
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.rel.got : { *(.rel.got) }
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.rela.got : { *(.rela.got) }
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.rel.ctors : { *(.rel.ctors) }
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.rela.ctors : { *(.rela.ctors) }
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.rel.dtors : { *(.rel.dtors) }
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.rela.dtors : { *(.rela.dtors) }
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.rel.bss : { *(.rel.bss) }
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.rela.bss : { *(.rela.bss) }
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.rel.plt : { *(.rel.plt) }
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.rela.plt : { *(.rela.plt) }
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/* .init : { *(.init) } =0*/
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.plt : { *(.plt) }
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.text :
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{
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_text = .;
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TEXT_TEXT
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SCHED_TEXT
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LOCK_TEXT
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*(.fixup)
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*(.got1)
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__got2_start = .;
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*(.got2)
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__got2_end = .;
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}
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_etext = .;
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PROVIDE (etext = .);
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RODATA
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.fini : { *(.fini) } =0
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.ctors : { *(.ctors) }
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.dtors : { *(.dtors) }
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.fixup : { *(.fixup) }
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__ex_table : {
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__start___ex_table = .;
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*(__ex_table)
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__stop___ex_table = .;
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}
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__bug_table : {
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__start___bug_table = .;
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*(__bug_table)
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__stop___bug_table = .;
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}
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/* Read-write section, merged into data segment: */
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. = ALIGN(4096);
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.data :
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{
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DATA_DATA
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*(.data1)
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*(.sdata)
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*(.sdata2)
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*(.got.plt) *(.got)
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*(.dynamic)
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CONSTRUCTORS
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}
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. = ALIGN(4096);
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__nosave_begin = .;
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.data_nosave : { *(.data.nosave) }
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. = ALIGN(4096);
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__nosave_end = .;
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. = ALIGN(32);
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.data.cacheline_aligned : { *(.data.cacheline_aligned) }
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_edata = .;
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PROVIDE (edata = .);
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. = ALIGN(8192);
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.data.init_task : { *(.data.init_task) }
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NOTES
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. = ALIGN(4096);
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__init_begin = .;
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.init.text : {
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_sinittext = .;
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INIT_TEXT
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_einittext = .;
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}
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/* .exit.text is discarded at runtime, not link time,
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to deal with references from __bug_table */
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.exit.text : { EXIT_TEXT }
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.init.data : {
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INIT_DATA
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__vtop_table_begin = .;
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*(.vtop_fixup);
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__vtop_table_end = .;
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__ptov_table_begin = .;
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*(.ptov_fixup);
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__ptov_table_end = .;
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}
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. = ALIGN(16);
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__setup_start = .;
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.init.setup : { *(.init.setup) }
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__setup_end = .;
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__initcall_start = .;
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.initcall.init : {
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INITCALLS
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}
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__initcall_end = .;
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__con_initcall_start = .;
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.con_initcall.init : { *(.con_initcall.init) }
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__con_initcall_end = .;
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SECURITY_INIT
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__start___ftr_fixup = .;
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__ftr_fixup : { *(__ftr_fixup) }
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__stop___ftr_fixup = .;
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PERCPU(4096)
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#ifdef CONFIG_BLK_DEV_INITRD
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. = ALIGN(4096);
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__initramfs_start = .;
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.init.ramfs : { *(.init.ramfs) }
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__initramfs_end = .;
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#endif
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. = ALIGN(4096);
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__init_end = .;
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__bss_start = .;
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.bss :
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{
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*(.sbss) *(.scommon)
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*(.dynbss)
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*(.bss)
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*(COMMON)
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}
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__bss_stop = .;
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_end = . ;
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PROVIDE (end = .);
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/* Sections to be discarded. */
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/DISCARD/ : {
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*(.exitcall.exit)
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EXIT_DATA
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}
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}
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