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https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
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023bf6f1b8
Discarded sections in different archs share some commonality but have considerable differences. This led to linker script for each arch implementing its own /DISCARD/ definition, which makes maintaining tedious and adding new entries error-prone. This patch makes all linker scripts to move discard definitions to the end of the linker script and use the common DISCARDS macro. As ld uses the first matching section definition, archs can include default discarded sections by including them earlier in the linker script. ia64 is notable because it first throws away some ia64 specific subsections and then include the rest of the sections into the final image, so those sections must be discarded before the inclusion. defconfig compile tested for x86, x86-64, powerpc, powerpc64, ia64, alpha, sparc, sparc64 and s390. Michal Simek tested microblaze. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Mike Frysinger <vapier@gentoo.org> Tested-by: Michal Simek <monstr@monstr.eu> Cc: linux-arch@vger.kernel.org Cc: Michal Simek <monstr@monstr.eu> Cc: microblaze-uclinux@itee.uq.edu.au Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Tony Luck <tony.luck@intel.com>
178 lines
2.8 KiB
ArmAsm
178 lines
2.8 KiB
ArmAsm
/* ld script for sparc32/sparc64 kernel */
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#include <asm-generic/vmlinux.lds.h>
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#include <asm/page.h>
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#include <asm/thread_info.h>
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#ifdef CONFIG_SPARC32
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#define INITIAL_ADDRESS 0x10000 + SIZEOF_HEADERS
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#define TEXTSTART 0xf0004000
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#define SMP_CACHE_BYTES_SHIFT 5
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#else
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#define SMP_CACHE_BYTES_SHIFT 6
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#define INITIAL_ADDRESS 0x4000
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#define TEXTSTART 0x0000000000404000
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#endif
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#define SMP_CACHE_BYTES (1 << SMP_CACHE_BYTES_SHIFT)
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#ifdef CONFIG_SPARC32
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OUTPUT_FORMAT("elf32-sparc", "elf32-sparc", "elf32-sparc")
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OUTPUT_ARCH(sparc)
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ENTRY(_start)
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jiffies = jiffies_64 + 4;
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#else
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/* sparc64 */
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OUTPUT_FORMAT("elf64-sparc", "elf64-sparc", "elf64-sparc")
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OUTPUT_ARCH(sparc:v9a)
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ENTRY(_start)
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jiffies = jiffies_64;
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#endif
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SECTIONS
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{
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/* swapper_low_pmd_dir is sparc64 only */
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swapper_low_pmd_dir = 0x0000000000402000;
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. = INITIAL_ADDRESS;
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.text TEXTSTART :
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{
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_text = .;
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HEAD_TEXT
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TEXT_TEXT
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SCHED_TEXT
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LOCK_TEXT
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KPROBES_TEXT
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*(.gnu.warning)
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} = 0
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_etext = .;
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RO_DATA(PAGE_SIZE)
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.data : {
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DATA_DATA
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CONSTRUCTORS
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}
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.data1 : {
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*(.data1)
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}
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. = ALIGN(SMP_CACHE_BYTES);
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.data.cacheline_aligned : {
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*(.data.cacheline_aligned)
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}
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. = ALIGN(SMP_CACHE_BYTES);
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.data.read_mostly : {
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*(.data.read_mostly)
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}
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/* End of data section */
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_edata = .;
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/* init_task */
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. = ALIGN(THREAD_SIZE);
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.data.init_task : {
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*(.data.init_task)
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}
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.fixup : {
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__start___fixup = .;
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*(.fixup)
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__stop___fixup = .;
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}
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. = ALIGN(16);
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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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NOTES
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. = ALIGN(PAGE_SIZE);
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.init.text : {
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__init_begin = .;
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_sinittext = .;
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INIT_TEXT
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_einittext = .;
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}
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__init_text_end = .;
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.init.data : {
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INIT_DATA
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}
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. = ALIGN(16);
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.init.setup : {
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__setup_start = .;
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*(.init.setup)
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__setup_end = .;
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}
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.initcall.init : {
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__initcall_start = .;
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INITCALLS
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__initcall_end = .;
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}
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.con_initcall.init : {
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__con_initcall_start = .;
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*(.con_initcall.init)
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__con_initcall_end = .;
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}
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SECURITY_INIT
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. = ALIGN(4);
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.tsb_ldquad_phys_patch : {
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__tsb_ldquad_phys_patch = .;
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*(.tsb_ldquad_phys_patch)
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__tsb_ldquad_phys_patch_end = .;
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}
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.tsb_phys_patch : {
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__tsb_phys_patch = .;
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*(.tsb_phys_patch)
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__tsb_phys_patch_end = .;
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}
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.cpuid_patch : {
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__cpuid_patch = .;
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*(.cpuid_patch)
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__cpuid_patch_end = .;
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}
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.sun4v_1insn_patch : {
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__sun4v_1insn_patch = .;
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*(.sun4v_1insn_patch)
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__sun4v_1insn_patch_end = .;
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}
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.sun4v_2insn_patch : {
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__sun4v_2insn_patch = .;
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*(.sun4v_2insn_patch)
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__sun4v_2insn_patch_end = .;
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}
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#ifdef CONFIG_BLK_DEV_INITRD
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. = ALIGN(PAGE_SIZE);
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.init.ramfs : {
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__initramfs_start = .;
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*(.init.ramfs)
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__initramfs_end = .;
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}
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#endif
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PERCPU(PAGE_SIZE)
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. = ALIGN(PAGE_SIZE);
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__init_end = .;
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__bss_start = .;
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.sbss : {
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*(.sbss)
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*(.scommon)
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}
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.bss : {
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*(.dynbss)
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*(.bss)
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*(COMMON)
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}
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_end = . ;
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STABS_DEBUG
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DWARF_DEBUG
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DISCARDS
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}
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