kernel: use -ffunction-sections, -fdata-sections and --gc-sections on mips
in combination with kernel symbol export stripping this significantly reduces the kernel image size SVN-Revision: 35320v19.07.3_mercusys_ac12_duma
Felix Fietkau
11 years ago
parent
7809d73fd2
commit
8933b918cd
@ -0,0 +1,372 @@
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--- a/arch/mips/Makefile
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+++ b/arch/mips/Makefile
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@@ -89,10 +89,12 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin
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#
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cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
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cflags-y += -msoft-float
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-LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
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+LDFLAGS_vmlinux += -G 0 -static -n -nostdlib --gc-sections
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KBUILD_AFLAGS_MODULE += -mlong-calls
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KBUILD_CFLAGS_MODULE += -mlong-calls
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+KBUILD_CFLAGS_KERNEL += -ffunction-sections -fdata-sections
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+
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cflags-y += -ffreestanding
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#
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--- a/arch/mips/kernel/vmlinux.lds.S
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+++ b/arch/mips/kernel/vmlinux.lds.S
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@@ -66,7 +66,7 @@ SECTIONS
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/* Exception table for data bus errors */
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__dbe_table : {
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__start___dbe_table = .;
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- *(__dbe_table)
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+ KEEP(*(__dbe_table))
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__stop___dbe_table = .;
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}
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@@ -111,7 +111,7 @@ SECTIONS
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. = ALIGN(4);
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.mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
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__mips_machines_start = .;
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- *(.mips.machines.init)
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+ KEEP(*(.mips.machines.init))
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__mips_machines_end = .;
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}
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--- a/include/asm-generic/vmlinux.lds.h
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+++ b/include/asm-generic/vmlinux.lds.h
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@@ -101,7 +101,7 @@
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#ifdef CONFIG_FTRACE_MCOUNT_RECORD
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#define MCOUNT_REC() . = ALIGN(8); \
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VMLINUX_SYMBOL(__start_mcount_loc) = .; \
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- *(__mcount_loc) \
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+ KEEP(*(__mcount_loc)) \
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VMLINUX_SYMBOL(__stop_mcount_loc) = .;
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#else
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#define MCOUNT_REC()
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@@ -109,7 +109,7 @@
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#ifdef CONFIG_TRACE_BRANCH_PROFILING
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#define LIKELY_PROFILE() VMLINUX_SYMBOL(__start_annotated_branch_profile) = .; \
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- *(_ftrace_annotated_branch) \
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+ KEEP(*(_ftrace_annotated_branch)) \
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VMLINUX_SYMBOL(__stop_annotated_branch_profile) = .;
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#else
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#define LIKELY_PROFILE()
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@@ -117,7 +117,7 @@
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#ifdef CONFIG_PROFILE_ALL_BRANCHES
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#define BRANCH_PROFILE() VMLINUX_SYMBOL(__start_branch_profile) = .; \
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- *(_ftrace_branch) \
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+ KEEP(*(_ftrace_branch)) \
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VMLINUX_SYMBOL(__stop_branch_profile) = .;
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#else
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#define BRANCH_PROFILE()
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@@ -126,7 +126,7 @@
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#ifdef CONFIG_EVENT_TRACING
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#define FTRACE_EVENTS() . = ALIGN(8); \
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VMLINUX_SYMBOL(__start_ftrace_events) = .; \
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- *(_ftrace_events) \
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+ KEEP(*(_ftrace_events)) \
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VMLINUX_SYMBOL(__stop_ftrace_events) = .;
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#else
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#define FTRACE_EVENTS()
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@@ -134,7 +134,7 @@
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#ifdef CONFIG_TRACING
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#define TRACE_PRINTKS() VMLINUX_SYMBOL(__start___trace_bprintk_fmt) = .; \
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- *(__trace_printk_fmt) /* Trace_printk fmt' pointer */ \
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+ KEEP(*(__trace_printk_fmt)) /* Trace_printk fmt' pointer */ \
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VMLINUX_SYMBOL(__stop___trace_bprintk_fmt) = .;
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#else
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#define TRACE_PRINTKS()
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@@ -143,7 +143,7 @@
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#ifdef CONFIG_FTRACE_SYSCALLS
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#define TRACE_SYSCALLS() . = ALIGN(8); \
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VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \
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- *(__syscalls_metadata) \
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+ KEEP(*(__syscalls_metadata)) \
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VMLINUX_SYMBOL(__stop_syscalls_metadata) = .;
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#else
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#define TRACE_SYSCALLS()
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@@ -153,7 +153,7 @@
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#define KERNEL_DTB() \
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STRUCT_ALIGN(); \
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VMLINUX_SYMBOL(__dtb_start) = .; \
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- *(.dtb.init.rodata) \
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+ KEEP(*(.dtb.init.rodata)) \
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VMLINUX_SYMBOL(__dtb_end) = .;
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/* .data section */
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@@ -173,15 +173,16 @@
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/* implement dynamic printk debug */ \
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. = ALIGN(8); \
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VMLINUX_SYMBOL(__start___jump_table) = .; \
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- *(__jump_table) \
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+ KEEP(*(__jump_table)) \
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VMLINUX_SYMBOL(__stop___jump_table) = .; \
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. = ALIGN(8); \
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VMLINUX_SYMBOL(__start___verbose) = .; \
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- *(__verbose) \
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+ KEEP(*(__verbose)) \
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VMLINUX_SYMBOL(__stop___verbose) = .; \
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LIKELY_PROFILE() \
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BRANCH_PROFILE() \
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- TRACE_PRINTKS()
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+ TRACE_PRINTKS() \
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+ *(.data.*)
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/*
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* Data section helpers
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@@ -235,39 +236,39 @@
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/* PCI quirks */ \
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.pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \
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- *(.pci_fixup_early) \
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+ KEEP(*(.pci_fixup_early)) \
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VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \
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VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \
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- *(.pci_fixup_header) \
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+ KEEP(*(.pci_fixup_header)) \
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VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \
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VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \
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- *(.pci_fixup_final) \
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+ KEEP(*(.pci_fixup_final)) \
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VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \
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VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \
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- *(.pci_fixup_enable) \
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+ KEEP(*(.pci_fixup_enable)) \
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VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \
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VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \
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- *(.pci_fixup_resume) \
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+ KEEP(*(.pci_fixup_resume)) \
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VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \
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VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \
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- *(.pci_fixup_resume_early) \
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+ KEEP(*(.pci_fixup_resume_early)) \
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VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \
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VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \
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- *(.pci_fixup_suspend) \
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+ KEEP(*(.pci_fixup_suspend)) \
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VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \
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} \
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\
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/* Built-in firmware blobs */ \
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.builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start_builtin_fw) = .; \
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- *(.builtin_fw) \
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+ KEEP(*(.builtin_fw)) \
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VMLINUX_SYMBOL(__end_builtin_fw) = .; \
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} \
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\
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/* RapidIO route ops */ \
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.rio_ops : AT(ADDR(.rio_ops) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start_rio_switch_ops) = .; \
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- *(.rio_switch_ops) \
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+ KEEP(*(.rio_switch_ops)) \
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VMLINUX_SYMBOL(__end_rio_switch_ops) = .; \
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} \
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\
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@@ -276,49 +277,49 @@
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/* Kernel symbol table: Normal symbols */ \
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__ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___ksymtab) = .; \
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- *(SORT(___ksymtab+*)) \
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+ KEEP(*(SORT(___ksymtab+*))) \
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VMLINUX_SYMBOL(__stop___ksymtab) = .; \
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} \
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\
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/* Kernel symbol table: GPL-only symbols */ \
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__ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
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- *(SORT(___ksymtab_gpl+*)) \
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+ KEEP(*(SORT(___ksymtab_gpl+*))) \
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VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
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} \
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\
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/* Kernel symbol table: Normal unused symbols */ \
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__ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \
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- *(SORT(___ksymtab_unused+*)) \
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+ KEEP(*(SORT(___ksymtab_unused+*))) \
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VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \
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} \
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\
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/* Kernel symbol table: GPL-only unused symbols */ \
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__ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \
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- *(SORT(___ksymtab_unused_gpl+*)) \
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+ KEEP(*(SORT(___ksymtab_unused_gpl+*))) \
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VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \
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} \
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\
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/* Kernel symbol table: GPL-future-only symbols */ \
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__ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \
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- *(SORT(___ksymtab_gpl_future+*)) \
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+ KEEP(*(SORT(___ksymtab_gpl_future+*))) \
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VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
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} \
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\
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/* Kernel symbol table: Normal symbols */ \
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__kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___kcrctab) = .; \
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- *(SORT(___kcrctab+*)) \
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+ KEEP(*(SORT(___kcrctab+*))) \
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VMLINUX_SYMBOL(__stop___kcrctab) = .; \
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} \
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\
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/* Kernel symbol table: GPL-only symbols */ \
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__kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \
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- *(SORT(___kcrctab_gpl+*)) \
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+ KEEP(*(SORT(___kcrctab_gpl+*))) \
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VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \
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} \
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\
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@@ -332,14 +333,14 @@
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/* Kernel symbol table: GPL-only unused symbols */ \
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__kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \
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- *(SORT(___kcrctab_unused_gpl+*)) \
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+ KEEP(*(SORT(___kcrctab_unused_gpl+*))) \
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VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \
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} \
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\
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/* Kernel symbol table: GPL-future-only symbols */ \
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__kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \
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- *(SORT(___kcrctab_gpl_future+*)) \
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+ KEEP(*(SORT(___kcrctab_gpl_future+*))) \
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VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \
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} \
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\
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@@ -362,14 +363,14 @@
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/* Built-in module parameters. */ \
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__param : AT(ADDR(__param) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___param) = .; \
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- *(__param) \
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+ KEEP(*(__param)) \
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VMLINUX_SYMBOL(__stop___param) = .; \
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} \
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\
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/* Built-in module versions. */ \
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__modver : AT(ADDR(__modver) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___modver) = .; \
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- *(__modver) \
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+ KEEP(*(__modver)) \
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VMLINUX_SYMBOL(__stop___modver) = .; \
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. = ALIGN((align)); \
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VMLINUX_SYMBOL(__end_rodata) = .; \
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@@ -429,7 +430,7 @@
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#define ENTRY_TEXT \
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ALIGN_FUNCTION(); \
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VMLINUX_SYMBOL(__entry_text_start) = .; \
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- *(.entry.text) \
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+ KEEP(*(.entry.text)) \
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VMLINUX_SYMBOL(__entry_text_end) = .;
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#ifdef CONFIG_FUNCTION_GRAPH_TRACER
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@@ -457,7 +458,7 @@
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. = ALIGN(align); \
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__ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___ex_table) = .; \
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- *(__ex_table) \
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+ KEEP(*(__ex_table)) \
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VMLINUX_SYMBOL(__stop___ex_table) = .; \
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}
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@@ -473,7 +474,7 @@
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#ifdef CONFIG_CONSTRUCTORS
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#define KERNEL_CTORS() . = ALIGN(8); \
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VMLINUX_SYMBOL(__ctors_start) = .; \
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- *(.ctors) \
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+ KEEP(*(.ctors)) \
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VMLINUX_SYMBOL(__ctors_end) = .;
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#else
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#define KERNEL_CTORS()
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@@ -526,7 +527,7 @@
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#define SBSS(sbss_align) \
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. = ALIGN(sbss_align); \
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.sbss : AT(ADDR(.sbss) - LOAD_OFFSET) { \
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- *(.sbss) \
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+ *(.sbss .sbss.*) \
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*(.scommon) \
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}
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@@ -544,7 +545,7 @@
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BSS_FIRST_SECTIONS \
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*(.bss..page_aligned) \
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*(.dynbss) \
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- *(.bss) \
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+ *(.bss .bss.*) \
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*(COMMON) \
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}
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@@ -593,7 +594,7 @@
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. = ALIGN(8); \
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__bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__start___bug_table) = .; \
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- *(__bug_table) \
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+ KEEP(*(__bug_table)) \
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VMLINUX_SYMBOL(__stop___bug_table) = .; \
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}
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#else
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@@ -605,7 +606,7 @@
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. = ALIGN(4); \
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.tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \
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VMLINUX_SYMBOL(__tracedata_start) = .; \
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- *(.tracedata) \
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+ KEEP(*(.tracedata)) \
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VMLINUX_SYMBOL(__tracedata_end) = .; \
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}
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#else
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@@ -622,17 +623,17 @@
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#define INIT_SETUP(initsetup_align) \
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. = ALIGN(initsetup_align); \
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VMLINUX_SYMBOL(__setup_start) = .; \
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- *(.init.setup) \
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+ KEEP(*(.init.setup)) \
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VMLINUX_SYMBOL(__setup_end) = .;
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#define INIT_CALLS_LEVEL(level) \
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VMLINUX_SYMBOL(__initcall##level##_start) = .; \
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- *(.initcall##level##.init) \
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- *(.initcall##level##s.init) \
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+ KEEP(*(.initcall##level##.init)) \
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+ KEEP(*(.initcall##level##s.init)) \
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#define INIT_CALLS \
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VMLINUX_SYMBOL(__initcall_start) = .; \
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- *(.initcallearly.init) \
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+ KEEP(*(.initcallearly.init)) \
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INIT_CALLS_LEVEL(0) \
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INIT_CALLS_LEVEL(1) \
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INIT_CALLS_LEVEL(2) \
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@@ -646,21 +647,21 @@
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#define CON_INITCALL \
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VMLINUX_SYMBOL(__con_initcall_start) = .; \
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- *(.con_initcall.init) \
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+ KEEP(*(.con_initcall.init)) \
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VMLINUX_SYMBOL(__con_initcall_end) = .;
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#define SECURITY_INITCALL \
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VMLINUX_SYMBOL(__security_initcall_start) = .; \
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- *(.security_initcall.init) \
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+ KEEP(*(.security_initcall.init)) \
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VMLINUX_SYMBOL(__security_initcall_end) = .;
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#ifdef CONFIG_BLK_DEV_INITRD
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#define INIT_RAM_FS \
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. = ALIGN(4); \
|
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VMLINUX_SYMBOL(__initramfs_start) = .; \
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- *(.init.ramfs) \
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+ KEEP(*(.init.ramfs)) \
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. = ALIGN(8); \
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- *(.init.ramfs.info)
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+ KEEP(*(.init.ramfs.info))
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||||
#else
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#define INIT_RAM_FS
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#endif
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@ -0,0 +1,372 @@
|
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--- a/arch/mips/Makefile
|
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+++ b/arch/mips/Makefile
|
||||
@@ -89,10 +89,12 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin
|
||||
#
|
||||
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
|
||||
cflags-y += -msoft-float
|
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-LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
|
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+LDFLAGS_vmlinux += -G 0 -static -n -nostdlib --gc-sections
|
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KBUILD_AFLAGS_MODULE += -mlong-calls
|
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KBUILD_CFLAGS_MODULE += -mlong-calls
|
||||
|
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+KBUILD_CFLAGS_KERNEL += -ffunction-sections -fdata-sections
|
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+
|
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cflags-y += -ffreestanding
|
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|
||||
#
|
||||
--- a/arch/mips/kernel/vmlinux.lds.S
|
||||
+++ b/arch/mips/kernel/vmlinux.lds.S
|
||||
@@ -67,7 +67,7 @@ SECTIONS
|
||||
/* Exception table for data bus errors */
|
||||
__dbe_table : {
|
||||
__start___dbe_table = .;
|
||||
- *(__dbe_table)
|
||||
+ KEEP(*(__dbe_table))
|
||||
__stop___dbe_table = .;
|
||||
}
|
||||
|
||||
@@ -112,7 +112,7 @@ SECTIONS
|
||||
. = ALIGN(4);
|
||||
.mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
|
||||
__mips_machines_start = .;
|
||||
- *(.mips.machines.init)
|
||||
+ KEEP(*(.mips.machines.init))
|
||||
__mips_machines_end = .;
|
||||
}
|
||||
|
||||
--- a/include/asm-generic/vmlinux.lds.h
|
||||
+++ b/include/asm-generic/vmlinux.lds.h
|
||||
@@ -101,7 +101,7 @@
|
||||
#ifdef CONFIG_FTRACE_MCOUNT_RECORD
|
||||
#define MCOUNT_REC() . = ALIGN(8); \
|
||||
VMLINUX_SYMBOL(__start_mcount_loc) = .; \
|
||||
- *(__mcount_loc) \
|
||||
+ KEEP(*(__mcount_loc)) \
|
||||
VMLINUX_SYMBOL(__stop_mcount_loc) = .;
|
||||
#else
|
||||
#define MCOUNT_REC()
|
||||
@@ -109,7 +109,7 @@
|
||||
|
||||
#ifdef CONFIG_TRACE_BRANCH_PROFILING
|
||||
#define LIKELY_PROFILE() VMLINUX_SYMBOL(__start_annotated_branch_profile) = .; \
|
||||
- *(_ftrace_annotated_branch) \
|
||||
+ KEEP(*(_ftrace_annotated_branch)) \
|
||||
VMLINUX_SYMBOL(__stop_annotated_branch_profile) = .;
|
||||
#else
|
||||
#define LIKELY_PROFILE()
|
||||
@@ -117,7 +117,7 @@
|
||||
|
||||
#ifdef CONFIG_PROFILE_ALL_BRANCHES
|
||||
#define BRANCH_PROFILE() VMLINUX_SYMBOL(__start_branch_profile) = .; \
|
||||
- *(_ftrace_branch) \
|
||||
+ KEEP(*(_ftrace_branch)) \
|
||||
VMLINUX_SYMBOL(__stop_branch_profile) = .;
|
||||
#else
|
||||
#define BRANCH_PROFILE()
|
||||
@@ -126,7 +126,7 @@
|
||||
#ifdef CONFIG_EVENT_TRACING
|
||||
#define FTRACE_EVENTS() . = ALIGN(8); \
|
||||
VMLINUX_SYMBOL(__start_ftrace_events) = .; \
|
||||
- *(_ftrace_events) \
|
||||
+ KEEP(*(_ftrace_events)) \
|
||||
VMLINUX_SYMBOL(__stop_ftrace_events) = .;
|
||||
#else
|
||||
#define FTRACE_EVENTS()
|
||||
@@ -134,7 +134,7 @@
|
||||
|
||||
#ifdef CONFIG_TRACING
|
||||
#define TRACE_PRINTKS() VMLINUX_SYMBOL(__start___trace_bprintk_fmt) = .; \
|
||||
- *(__trace_printk_fmt) /* Trace_printk fmt' pointer */ \
|
||||
+ KEEP(*(__trace_printk_fmt)) /* Trace_printk fmt' pointer */ \
|
||||
VMLINUX_SYMBOL(__stop___trace_bprintk_fmt) = .;
|
||||
#else
|
||||
#define TRACE_PRINTKS()
|
||||
@@ -143,7 +143,7 @@
|
||||
#ifdef CONFIG_FTRACE_SYSCALLS
|
||||
#define TRACE_SYSCALLS() . = ALIGN(8); \
|
||||
VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \
|
||||
- *(__syscalls_metadata) \
|
||||
+ KEEP(*(__syscalls_metadata)) \
|
||||
VMLINUX_SYMBOL(__stop_syscalls_metadata) = .;
|
||||
#else
|
||||
#define TRACE_SYSCALLS()
|
||||
@@ -153,7 +153,7 @@
|
||||
#define KERNEL_DTB() \
|
||||
STRUCT_ALIGN(); \
|
||||
VMLINUX_SYMBOL(__dtb_start) = .; \
|
||||
- *(.dtb.init.rodata) \
|
||||
+ KEEP(*(.dtb.init.rodata)) \
|
||||
VMLINUX_SYMBOL(__dtb_end) = .;
|
||||
|
||||
/* .data section */
|
||||
@@ -173,15 +173,16 @@
|
||||
/* implement dynamic printk debug */ \
|
||||
. = ALIGN(8); \
|
||||
VMLINUX_SYMBOL(__start___jump_table) = .; \
|
||||
- *(__jump_table) \
|
||||
+ KEEP(*(__jump_table)) \
|
||||
VMLINUX_SYMBOL(__stop___jump_table) = .; \
|
||||
. = ALIGN(8); \
|
||||
VMLINUX_SYMBOL(__start___verbose) = .; \
|
||||
- *(__verbose) \
|
||||
+ KEEP(*(__verbose)) \
|
||||
VMLINUX_SYMBOL(__stop___verbose) = .; \
|
||||
LIKELY_PROFILE() \
|
||||
BRANCH_PROFILE() \
|
||||
- TRACE_PRINTKS()
|
||||
+ TRACE_PRINTKS() \
|
||||
+ *(.data.*)
|
||||
|
||||
/*
|
||||
* Data section helpers
|
||||
@@ -235,39 +236,39 @@
|
||||
/* 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) = .; \
|
||||
} \
|
||||
\
|
||||
/* Built-in firmware blobs */ \
|
||||
.builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) { \
|
||||
VMLINUX_SYMBOL(__start_builtin_fw) = .; \
|
||||
- *(.builtin_fw) \
|
||||
+ KEEP(*(.builtin_fw)) \
|
||||
VMLINUX_SYMBOL(__end_builtin_fw) = .; \
|
||||
} \
|
||||
\
|
||||
/* RapidIO route ops */ \
|
||||
.rio_ops : AT(ADDR(.rio_ops) - LOAD_OFFSET) { \
|
||||
VMLINUX_SYMBOL(__start_rio_switch_ops) = .; \
|
||||
- *(.rio_switch_ops) \
|
||||
+ KEEP(*(.rio_switch_ops)) \
|
||||
VMLINUX_SYMBOL(__end_rio_switch_ops) = .; \
|
||||
} \
|
||||
\
|
||||
@@ -276,49 +277,49 @@
|
||||
/* Kernel symbol table: Normal symbols */ \
|
||||
__ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
|
||||
VMLINUX_SYMBOL(__start___ksymtab) = .; \
|
||||
- *(SORT(___ksymtab+*)) \
|
||||
+ KEEP(*(SORT(___ksymtab+*))) \
|
||||
VMLINUX_SYMBOL(__stop___ksymtab) = .; \
|
||||
} \
|
||||
\
|
||||
/* Kernel symbol table: GPL-only symbols */ \
|
||||
__ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
|
||||
VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
|
||||
- *(SORT(___ksymtab_gpl+*)) \
|
||||
+ KEEP(*(SORT(___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) = .; \
|
||||
- *(SORT(___ksymtab_unused+*)) \
|
||||
+ KEEP(*(SORT(___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) = .; \
|
||||
- *(SORT(___ksymtab_unused_gpl+*)) \
|
||||
+ KEEP(*(SORT(___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) = .; \
|
||||
- *(SORT(___ksymtab_gpl_future+*)) \
|
||||
+ KEEP(*(SORT(___ksymtab_gpl_future+*))) \
|
||||
VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
|
||||
} \
|
||||
\
|
||||
/* Kernel symbol table: Normal symbols */ \
|
||||
__kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \
|
||||
VMLINUX_SYMBOL(__start___kcrctab) = .; \
|
||||
- *(SORT(___kcrctab+*)) \
|
||||
+ KEEP(*(SORT(___kcrctab+*))) \
|
||||
VMLINUX_SYMBOL(__stop___kcrctab) = .; \
|
||||
} \
|
||||
\
|
||||
/* Kernel symbol table: GPL-only symbols */ \
|
||||
__kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \
|
||||
VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \
|
||||
- *(SORT(___kcrctab_gpl+*)) \
|
||||
+ KEEP(*(SORT(___kcrctab_gpl+*))) \
|
||||
VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \
|
||||
} \
|
||||
\
|
||||
@@ -332,14 +333,14 @@
|
||||
/* Kernel symbol table: GPL-only unused symbols */ \
|
||||
__kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
|
||||
VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \
|
||||
- *(SORT(___kcrctab_unused_gpl+*)) \
|
||||
+ KEEP(*(SORT(___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) = .; \
|
||||
- *(SORT(___kcrctab_gpl_future+*)) \
|
||||
+ KEEP(*(SORT(___kcrctab_gpl_future+*))) \
|
||||
VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \
|
||||
} \
|
||||
\
|
||||
@@ -362,14 +363,14 @@
|
||||
/* Built-in module parameters. */ \
|
||||
__param : AT(ADDR(__param) - LOAD_OFFSET) { \
|
||||
VMLINUX_SYMBOL(__start___param) = .; \
|
||||
- *(__param) \
|
||||
+ KEEP(*(__param)) \
|
||||
VMLINUX_SYMBOL(__stop___param) = .; \
|
||||
} \
|
||||
\
|
||||
/* Built-in module versions. */ \
|
||||
__modver : AT(ADDR(__modver) - LOAD_OFFSET) { \
|
||||
VMLINUX_SYMBOL(__start___modver) = .; \
|
||||
- *(__modver) \
|
||||
+ KEEP(*(__modver)) \
|
||||
VMLINUX_SYMBOL(__stop___modver) = .; \
|
||||
. = ALIGN((align)); \
|
||||
VMLINUX_SYMBOL(__end_rodata) = .; \
|
||||
@@ -429,7 +430,7 @@
|
||||
#define ENTRY_TEXT \
|
||||
ALIGN_FUNCTION(); \
|
||||
VMLINUX_SYMBOL(__entry_text_start) = .; \
|
||||
- *(.entry.text) \
|
||||
+ KEEP(*(.entry.text)) \
|
||||
VMLINUX_SYMBOL(__entry_text_end) = .;
|
||||
|
||||
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
|
||||
@@ -457,7 +458,7 @@
|
||||
. = 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) = .; \
|
||||
}
|
||||
|
||||
@@ -473,7 +474,7 @@
|
||||
#ifdef CONFIG_CONSTRUCTORS
|
||||
#define KERNEL_CTORS() . = ALIGN(8); \
|
||||
VMLINUX_SYMBOL(__ctors_start) = .; \
|
||||
- *(.ctors) \
|
||||
+ KEEP(*(.ctors)) \
|
||||
VMLINUX_SYMBOL(__ctors_end) = .;
|
||||
#else
|
||||
#define KERNEL_CTORS()
|
||||
@@ -526,7 +527,7 @@
|
||||
#define SBSS(sbss_align) \
|
||||
. = ALIGN(sbss_align); \
|
||||
.sbss : AT(ADDR(.sbss) - LOAD_OFFSET) { \
|
||||
- *(.sbss) \
|
||||
+ *(.sbss .sbss.*) \
|
||||
*(.scommon) \
|
||||
}
|
||||
|
||||
@@ -544,7 +545,7 @@
|
||||
BSS_FIRST_SECTIONS \
|
||||
*(.bss..page_aligned) \
|
||||
*(.dynbss) \
|
||||
- *(.bss) \
|
||||
+ *(.bss .bss.*) \
|
||||
*(COMMON) \
|
||||
}
|
||||
|
||||
@@ -593,7 +594,7 @@
|
||||
. = ALIGN(8); \
|
||||
__bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \
|
||||
VMLINUX_SYMBOL(__start___bug_table) = .; \
|
||||
- *(__bug_table) \
|
||||
+ KEEP(*(__bug_table)) \
|
||||
VMLINUX_SYMBOL(__stop___bug_table) = .; \
|
||||
}
|
||||
#else
|
||||
@@ -605,7 +606,7 @@
|
||||
. = ALIGN(4); \
|
||||
.tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \
|
||||
VMLINUX_SYMBOL(__tracedata_start) = .; \
|
||||
- *(.tracedata) \
|
||||
+ KEEP(*(.tracedata)) \
|
||||
VMLINUX_SYMBOL(__tracedata_end) = .; \
|
||||
}
|
||||
#else
|
||||
@@ -622,17 +623,17 @@
|
||||
#define INIT_SETUP(initsetup_align) \
|
||||
. = ALIGN(initsetup_align); \
|
||||
VMLINUX_SYMBOL(__setup_start) = .; \
|
||||
- *(.init.setup) \
|
||||
+ KEEP(*(.init.setup)) \
|
||||
VMLINUX_SYMBOL(__setup_end) = .;
|
||||
|
||||
#define INIT_CALLS_LEVEL(level) \
|
||||
VMLINUX_SYMBOL(__initcall##level##_start) = .; \
|
||||
- *(.initcall##level##.init) \
|
||||
- *(.initcall##level##s.init) \
|
||||
+ KEEP(*(.initcall##level##.init)) \
|
||||
+ KEEP(*(.initcall##level##s.init)) \
|
||||
|
||||
#define INIT_CALLS \
|
||||
VMLINUX_SYMBOL(__initcall_start) = .; \
|
||||
- *(.initcallearly.init) \
|
||||
+ KEEP(*(.initcallearly.init)) \
|
||||
INIT_CALLS_LEVEL(0) \
|
||||
INIT_CALLS_LEVEL(1) \
|
||||
INIT_CALLS_LEVEL(2) \
|
||||
@@ -646,21 +647,21 @@
|
||||
|
||||
#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(4); \
|
||||
VMLINUX_SYMBOL(__initramfs_start) = .; \
|
||||
- *(.init.ramfs) \
|
||||
+ KEEP(*(.init.ramfs)) \
|
||||
. = ALIGN(8); \
|
||||
- *(.init.ramfs.info)
|
||||
+ KEEP(*(.init.ramfs.info))
|
||||
#else
|
||||
#define INIT_RAM_FS
|
||||
#endif
|
||||
Loading…
Reference in New Issue