From patchwork Sun Jul 18 15:03:16 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Denys Vlasenko X-Patchwork-Id: 112607 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.4/8.14.3) with ESMTP id o6IF182k023596 for ; Sun, 18 Jul 2010 15:03:32 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756307Ab0GRPDc (ORCPT ); Sun, 18 Jul 2010 11:03:32 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:64013 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756296Ab0GRPDa (ORCPT ); Sun, 18 Jul 2010 11:03:30 -0400 Received: by fxm14 with SMTP id 14so1771049fxm.19 for ; Sun, 18 Jul 2010 08:03:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:received:received:from:to:subject:date :user-agent:cc:mime-version:content-type:message-id; bh=o8nsTcF1umdFzcik93bJI4BBPnCPM3rOeS/AN0i4p/U=; 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Sun, 18 Jul 2010 15:03:33 +0000 (UTC) --- linux-2.6.35-rc4.fs/Makefile +++ linux-2.6.35-rc4-fsgs.obj/Makefile @@ -610,6 +610,8 @@ LDFLAGS_vmlinux += $(call ld-option, -X,) endif +LDFLAGS_vmlinux += --gc-sections + # Default kernel image to build when no specific target is given. # KBUILD_IMAGE may be overruled on the command line or # set in the environment @@ -705,7 +707,7 @@ # Rule to link vmlinux - also used during CONFIG_KALLSYMS # May be overridden by arch/$(ARCH)/Makefile quiet_cmd_vmlinux__ ?= LD $@ - cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ + cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ -Map $@.ldmap \ -T $(vmlinux-lds) $(vmlinux-init) \ --start-group $(vmlinux-main) --end-group \ $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) --- linux-2.6.35-rc4.fs/arch/arm/kernel/vmlinux.lds.S +++ linux-2.6.35-rc4-fsgs.obj/arch/arm/kernel/vmlinux.lds.S @@ -157,7 +157,7 @@ . = ALIGN(32); __start___ex_table = .; #ifdef CONFIG_MMU - *(__ex_table) + KEEP(*(__ex_table)) #endif __stop___ex_table = .; --- linux-2.6.35-rc4.fs/arch/blackfin/kernel/vmlinux.lds.S +++ linux-2.6.35-rc4-fsgs.obj/arch/blackfin/kernel/vmlinux.lds.S @@ -51,7 +51,7 @@ . = ALIGN(16); ___start___ex_table = .; - *(__ex_table) + KEEP(*(__ex_table)) ___stop___ex_table = .; __etext = .; --- linux-2.6.35-rc4.fs/arch/cris/boot/rescue/rescue_v32.lds +++ linux-2.6.35-rc4-fsgs.obj/arch/cris/boot/rescue/rescue_v32.lds @@ -36,7 +36,7 @@ /* Get rid of stuff from EXPORT_SYMBOL(foo). */ /DISCARD/ : { - *(__ksymtab_strings) - *(__ksymtab) + KEEP(*(__ksymtab_strings)) + *(__ksymtab) } } --- linux-2.6.35-rc4.fs/arch/cris/kernel/vmlinux.lds.S +++ linux-2.6.35-rc4-fsgs.obj/arch/cris/kernel/vmlinux.lds.S @@ -72,7 +72,7 @@ .init.setup : { INIT_SETUP(16) } #ifdef CONFIG_ETRAX_ARCH_V32 __start___param = .; - __param : { *(__param) } + __param : { KEEP(*(__param)) } __stop___param = .; #endif .initcall.init : { @@ -88,7 +88,7 @@ #ifdef CONFIG_BLK_DEV_INITRD .init.ramfs : { __initramfs_start = .; - *(.init.ramfs) + KEEP(*(.init.ramfs)) __initramfs_end = .; } #endif --- linux-2.6.35-rc4.fs/arch/h8300/kernel/vmlinux.lds.S +++ linux-2.6.35-rc4-fsgs.obj/arch/h8300/kernel/vmlinux.lds.S @@ -112,7 +112,7 @@ . = ALIGN(0x4) ; INIT_SETUP(0x4) ___setup_start = .; - *(.init.setup) + KEEP(*(.init.setup)) . = ALIGN(0x4) ; ___setup_end = .; INIT_CALLS --- linux-2.6.35-rc4.fs/arch/m68knommu/kernel/vmlinux.lds.S +++ linux-2.6.35-rc4-fsgs.obj/arch/m68knommu/kernel/vmlinux.lds.S @@ -72,7 +72,7 @@ . = ALIGN(16); /* Exception table */ __start___ex_table = .; - *(__ex_table) + KEEP(*(__ex_table)) __stop___ex_table = .; *(.rodata .rodata.*) @@ -129,16 +129,16 @@ /* Kernel symbol table: GPL-future symbols */ __start___kcrctab_gpl_future = .; - *(__kcrctab_gpl_future) + KEEP(*(__kcrctab_gpl_future)) __stop___kcrctab_gpl_future = .; /* Kernel symbol table: strings */ - *(__ksymtab_strings) + KEEP(*(__ksymtab_strings)) /* Built-in module parameters */ . = ALIGN(4) ; __start___param = .; - *(__param) + KEEP(*(__param)) __stop___param = .; . = ALIGN(4) ; --- linux-2.6.35-rc4.fs/arch/microblaze/kernel/vmlinux.lds.S +++ linux-2.6.35-rc4-fsgs.obj/arch/microblaze/kernel/vmlinux.lds.S @@ -122,7 +122,7 @@ .init.ramfs ALIGN(4096) : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { __initramfs_start = .; - *(.init.ramfs) + KEEP(*(.init.ramfs)) __initramfs_end = .; . = ALIGN(4); LONG(0); --- linux-2.6.35-rc4.fs/arch/mn10300/kernel/vmlinux.lds.S +++ linux-2.6.35-rc4-fsgs.obj/arch/mn10300/kernel/vmlinux.lds.S @@ -51,7 +51,7 @@ . = ALIGN(PAGE_SIZE); .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { __smp_locks = .; - *(.smp_locks) + KEEP(*(.smp_locks)) __smp_locks_end = .; } @@ -62,9 +62,9 @@ INIT_DATA_SECTION(16) . = ALIGN(4); __alt_instructions = .; - .altinstructions : { *(.altinstructions) } + .altinstructions : { KEEP(*(.altinstructions)) } __alt_instructions_end = .; - .altinstr_replacement : { *(.altinstr_replacement) } + .altinstr_replacement : { KEEP(*(.altinstr_replacement)) } /* .exit.text is discard at runtime, not link time, to deal with references from .altinstructions and .eh_frame */ .exit.text : { EXIT_TEXT; } --- linux-2.6.35-rc4.fs/arch/um/include/asm/common.lds.S +++ linux-2.6.35-rc4-fsgs.obj/arch/um/include/asm/common.lds.S @@ -76,10 +76,10 @@ . = ALIGN(4); .altinstructions : { __alt_instructions = .; - *(.altinstructions) + KEEP(*(.altinstructions)) __alt_instructions_end = .; } - .altinstr_replacement : { *(.altinstr_replacement) } + .altinstr_replacement : { KEEP(*(.altinstr_replacement)) } /* .exit.text is discard at runtime, not link time, to deal with references from .altinstructions and .eh_frame */ .exit.text : { *(.exit.text) } --- linux-2.6.35-rc4.fs/arch/x86/kernel/vmlinux.lds.S +++ linux-2.6.35-rc4-fsgs.obj/arch/x86/kernel/vmlinux.lds.S @@ -162,46 +162,46 @@ . = VSYSCALL_ADDR; .vsyscall_0 : AT(VLOAD(.vsyscall_0)) { - *(.vsyscall_0) + KEEP(*(.vsyscall_0)) } :user . = ALIGN(L1_CACHE_BYTES); .vsyscall_fn : AT(VLOAD(.vsyscall_fn)) { - *(.vsyscall_fn) + KEEP(*(.vsyscall_fn)) } . = ALIGN(L1_CACHE_BYTES); .vsyscall_gtod_data : AT(VLOAD(.vsyscall_gtod_data)) { - *(.vsyscall_gtod_data) + KEEP(*(.vsyscall_gtod_data)) } vsyscall_gtod_data = VVIRT(.vsyscall_gtod_data); .vsyscall_clock : AT(VLOAD(.vsyscall_clock)) { - *(.vsyscall_clock) + KEEP(*(.vsyscall_clock)) } vsyscall_clock = VVIRT(.vsyscall_clock); .vsyscall_1 ADDR(.vsyscall_0) + 1024: AT(VLOAD(.vsyscall_1)) { - *(.vsyscall_1) + KEEP(*(.vsyscall_1)) } .vsyscall_2 ADDR(.vsyscall_0) + 2048: AT(VLOAD(.vsyscall_2)) { - *(.vsyscall_2) + KEEP(*(.vsyscall_2)) } .vgetcpu_mode : AT(VLOAD(.vgetcpu_mode)) { - *(.vgetcpu_mode) + KEEP(*(.vgetcpu_mode)) } vgetcpu_mode = VVIRT(.vgetcpu_mode); . = ALIGN(L1_CACHE_BYTES); .jiffies : AT(VLOAD(.jiffies)) { - *(.jiffies) + KEEP(*(.jiffies)) } jiffies = VVIRT(.jiffies); .vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3)) { - *(.vsyscall_3) + KEEP(*(.vsyscall_3)) } . = __vsyscall_0 + PAGE_SIZE; @@ -252,12 +252,12 @@ . = ALIGN(8); .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) { __alt_instructions = .; - *(.altinstructions) + KEEP(*(.altinstructions)) __alt_instructions_end = .; } .altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) { - *(.altinstr_replacement) + KEEP(*(.altinstr_replacement)) } /* @@ -290,7 +290,7 @@ . = ALIGN(PAGE_SIZE); .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { __smp_locks = .; - *(.smp_locks) + KEEP(*(.smp_locks)) . = ALIGN(PAGE_SIZE); __smp_locks_end = .; } --- linux-2.6.35-rc4.fs/arch/x86/vdso/vdso-layout.lds.S +++ linux-2.6.35-rc4-fsgs.obj/arch/x86/vdso/vdso-layout.lds.S @@ -34,8 +34,8 @@ *(.gnu.linkonce.b.*) } - .altinstructions : { *(.altinstructions) } - .altinstr_replacement : { *(.altinstr_replacement) } + .altinstructions : { KEEP(*(.altinstructions)) } + .altinstr_replacement : { KEEP(*(.altinstr_replacement)) } /* * Align the actual code well away from the non-instruction data. --- linux-2.6.35-rc4.fs/include/asm-generic/vmlinux.lds.h +++ linux-2.6.35-rc4-fsgs.obj/include/asm-generic/vmlinux.lds.h @@ -229,25 +229,25 @@ /* PCI quirks */ \ .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \ - *(.pci_fixup_early) \ + KEEP(*(.pci_fixup_early)) \ VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \ VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \ - *(.pci_fixup_header) \ + KEEP(*(.pci_fixup_header)) \ VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \ VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \ - *(.pci_fixup_final) \ + KEEP(*(.pci_fixup_final)) \ VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \ VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \ - *(.pci_fixup_enable) \ + KEEP(*(.pci_fixup_enable)) \ VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \ VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \ - *(.pci_fixup_resume) \ + KEEP(*(.pci_fixup_resume)) \ VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \ VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \ - *(.pci_fixup_resume_early) \ + KEEP(*(.pci_fixup_resume_early)) \ VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \ VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \ - *(.pci_fixup_suspend) \ + KEEP(*(.pci_fixup_suspend)) \ VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \ } \ \ @@ -270,76 +270,76 @@ /* Kernel symbol table: Normal symbols */ \ __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab) = .; \ - *(__ksymtab) \ + KEEP(*(__ksymtab)) \ VMLINUX_SYMBOL(__stop___ksymtab) = .; \ } \ \ /* Kernel symbol table: GPL-only symbols */ \ __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \ - *(__ksymtab_gpl) \ + KEEP(*(__ksymtab_gpl)) \ VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \ } \ \ /* Kernel symbol table: Normal unused symbols */ \ __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \ - *(__ksymtab_unused) \ + KEEP(*(__ksymtab_unused)) \ VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \ } \ \ /* Kernel symbol table: GPL-only unused symbols */ \ __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \ - *(__ksymtab_unused_gpl) \ + KEEP(*(__ksymtab_unused_gpl)) \ VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \ } \ \ /* Kernel symbol table: GPL-future-only symbols */ \ __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \ - *(__ksymtab_gpl_future) \ + KEEP(*(__ksymtab_gpl_future)) \ VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \ } \ \ /* Kernel symbol table: Normal symbols */ \ __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___kcrctab) = .; \ - *(__kcrctab) \ + KEEP(*(__kcrctab)) \ VMLINUX_SYMBOL(__stop___kcrctab) = .; \ } \ \ /* Kernel symbol table: GPL-only symbols */ \ __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \ - *(__kcrctab_gpl) \ + KEEP(*(__kcrctab_gpl)) \ VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \ } \ \ /* Kernel symbol table: Normal unused symbols */ \ __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \ - *(__kcrctab_unused) \ + KEEP(*(__kcrctab_unused)) \ VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \ } \ \ /* Kernel symbol table: GPL-only unused symbols */ \ __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \ - *(__kcrctab_unused_gpl) \ + KEEP(*(__kcrctab_unused_gpl)) \ VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \ } \ \ /* Kernel symbol table: GPL-future-only symbols */ \ __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \ - *(__kcrctab_gpl_future) \ + KEEP(*(__kcrctab_gpl_future)) \ VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \ } \ \ /* Kernel symbol table: strings */ \ __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ - *(__ksymtab_strings) \ + KEEP(*(__ksymtab_strings)) \ } \ \ /* __*init sections */ \ @@ -356,7 +356,7 @@ /* Built-in module parameters. */ \ __param : AT(ADDR(__param) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___param) = .; \ - *(__param) \ + KEEP(*(__param)) \ VMLINUX_SYMBOL(__stop___param) = .; \ . = ALIGN((align)); \ VMLINUX_SYMBOL(__end_rodata) = .; \ @@ -371,7 +371,7 @@ #define SECURITY_INIT \ .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__security_initcall_start) = .; \ - *(.security_initcall.init) \ + KEEP(*(.security_initcall.init)) \ VMLINUX_SYMBOL(__security_initcall_end) = .; \ } @@ -424,7 +424,7 @@ #endif /* Section used for early init (in .S files) */ -#define HEAD_TEXT *(.head.text) +#define HEAD_TEXT KEEP(*(.head.text)) #define HEAD_TEXT_SECTION \ .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { \ @@ -438,7 +438,7 @@ . = ALIGN(align); \ __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ex_table) = .; \ - *(__ex_table) \ + KEEP(*(__ex_table)) \ VMLINUX_SYMBOL(__stop___ex_table) = .; \ } @@ -591,29 +591,29 @@ #define INIT_SETUP(initsetup_align) \ . = ALIGN(initsetup_align); \ VMLINUX_SYMBOL(__setup_start) = .; \ - *(.init.setup) \ + KEEP(*(.init.setup)) \ VMLINUX_SYMBOL(__setup_end) = .; #define INITCALLS \ - *(.initcallearly.init) \ + KEEP(*(.initcallearly.init)) \ VMLINUX_SYMBOL(__early_initcall_end) = .; \ - *(.initcall0.init) \ - *(.initcall0s.init) \ - *(.initcall1.init) \ - *(.initcall1s.init) \ - *(.initcall2.init) \ - *(.initcall2s.init) \ - *(.initcall3.init) \ - *(.initcall3s.init) \ - *(.initcall4.init) \ - *(.initcall4s.init) \ - *(.initcall5.init) \ - *(.initcall5s.init) \ - *(.initcallrootfs.init) \ - *(.initcall6.init) \ - *(.initcall6s.init) \ - *(.initcall7.init) \ - *(.initcall7s.init) + KEEP(*(.initcall0.init)) \ + KEEP(*(.initcall0s.init)) \ + KEEP(*(.initcall1.init)) \ + KEEP(*(.initcall1s.init)) \ + KEEP(*(.initcall2.init)) \ + KEEP(*(.initcall2s.init)) \ + KEEP(*(.initcall3.init)) \ + KEEP(*(.initcall3s.init)) \ + KEEP(*(.initcall4.init)) \ + KEEP(*(.initcall4s.init)) \ + KEEP(*(.initcall5.init)) \ + KEEP(*(.initcall5s.init)) \ + KEEP(*(.initcallrootfs.init)) \ + KEEP(*(.initcall6.init)) \ + KEEP(*(.initcall6s.init)) \ + KEEP(*(.initcall7.init)) \ + KEEP(*(.initcall7s.init)) #define INIT_CALLS \ VMLINUX_SYMBOL(__initcall_start) = .; \ @@ -622,19 +622,19 @@ #define CON_INITCALL \ VMLINUX_SYMBOL(__con_initcall_start) = .; \ - *(.con_initcall.init) \ + KEEP(*(.con_initcall.init)) \ VMLINUX_SYMBOL(__con_initcall_end) = .; #define SECURITY_INITCALL \ VMLINUX_SYMBOL(__security_initcall_start) = .; \ - *(.security_initcall.init) \ + KEEP(*(.security_initcall.init)) \ VMLINUX_SYMBOL(__security_initcall_end) = .; #ifdef CONFIG_BLK_DEV_INITRD #define INIT_RAM_FS \ . = ALIGN(PAGE_SIZE); \ VMLINUX_SYMBOL(__initramfs_start) = .; \ - *(.init.ramfs) \ + KEEP(*(.init.ramfs)) \ VMLINUX_SYMBOL(__initramfs_end) = .; #else #define INIT_RAM_FS