diff options
Diffstat (limited to 'arch/mips/boot/compressed/ld.script')
| -rw-r--r-- | arch/mips/boot/compressed/ld.script | 195 |
1 files changed, 56 insertions, 139 deletions
diff --git a/arch/mips/boot/compressed/ld.script b/arch/mips/boot/compressed/ld.script index 29e9f4c0d5d..613a35b02f5 100644 --- a/arch/mips/boot/compressed/ld.script +++ b/arch/mips/boot/compressed/ld.script | |||
| @@ -1,150 +1,67 @@ | |||
| 1 | /* | ||
| 2 | * ld.script for compressed kernel support of MIPS | ||
| 3 | * | ||
| 4 | * Copyright (C) 2009 Lemote Inc. | ||
| 5 | * Author: Wu Zhangjin <wuzj@lemote.com> | ||
| 6 | */ | ||
| 7 | |||
| 1 | OUTPUT_ARCH(mips) | 8 | OUTPUT_ARCH(mips) |
| 2 | ENTRY(start) | 9 | ENTRY(start) |
| 3 | SECTIONS | 10 | SECTIONS |
| 4 | { | 11 | { |
| 5 | /* Read-only sections, merged into text segment: */ | 12 | /* . = VMLINUZ_LOAD_ADDRESS */ |
| 6 | .init : { *(.init) } =0 | 13 | /* read-only */ |
| 7 | .text : | 14 | _text = .; /* Text and read-only data */ |
| 8 | { | 15 | .text : { |
| 9 | _ftext = . ; | 16 | _ftext = . ; |
| 10 | *(.text) | 17 | *(.text) |
| 11 | *(.rodata) | 18 | *(.rodata) |
| 12 | *(.rodata1) | 19 | } = 0 |
| 13 | /* .gnu.warning sections are handled specially by elf32.em. */ | 20 | _etext = .; /* End of text section */ |
| 14 | *(.gnu.warning) | ||
| 15 | } =0 | ||
| 16 | .kstrtab : { *(.kstrtab) } | ||
| 17 | |||
| 18 | . = ALIGN(16); /* Exception table */ | ||
| 19 | __start___ex_table = .; | ||
| 20 | __ex_table : { *(__ex_table) } | ||
| 21 | __stop___ex_table = .; | ||
| 22 | |||
| 23 | __start___dbe_table = .; /* Exception table for data bus errors */ | ||
| 24 | __dbe_table : { *(__dbe_table) } | ||
| 25 | __stop___dbe_table = .; | ||
| 26 | |||
| 27 | __start___ksymtab = .; /* Kernel symbol table */ | ||
| 28 | __ksymtab : { *(__ksymtab) } | ||
| 29 | __stop___ksymtab = .; | ||
| 30 | |||
| 31 | _etext = .; | ||
| 32 | |||
| 33 | . = ALIGN(8192); | ||
| 34 | .data.init_task : { *(.data.init_task) } | ||
| 35 | |||
| 36 | /* Startup code */ | ||
| 37 | . = ALIGN(4096); | ||
| 38 | __init_begin = .; | ||
| 39 | .text.init : { *(.text.init) } | ||
| 40 | .data.init : { *(.data.init) } | ||
| 41 | . = ALIGN(16); | ||
| 42 | __setup_start = .; | ||
| 43 | .setup.init : { *(.setup.init) } | ||
| 44 | __setup_end = .; | ||
| 45 | __initcall_start = .; | ||
| 46 | .initcall.init : { *(.initcall.init) } | ||
| 47 | __initcall_end = .; | ||
| 48 | . = ALIGN(4096); /* Align double page for init_task_union */ | ||
| 49 | __init_end = .; | ||
| 50 | |||
| 51 | . = ALIGN(4096); | ||
| 52 | .data.page_aligned : { *(.data.idt) } | ||
| 53 | |||
| 54 | . = ALIGN(32); | ||
| 55 | .data.cacheline_aligned : { *(.data.cacheline_aligned) } | ||
| 56 | 21 | ||
| 57 | .fini : { *(.fini) } =0 | 22 | /* writable */ |
| 58 | .reginfo : { *(.reginfo) } | 23 | .data : { /* Data */ |
| 59 | /* Adjust the address for the data segment. We want to adjust up to | 24 | _fdata = . ; |
| 60 | the same address within the page on the next page up. It would | 25 | *(.data) |
| 61 | be more correct to do this: | 26 | /* Put the compressed image here, so bss is on the end. */ |
| 62 | . = .; | 27 | __image_begin = .; |
| 63 | The current expression does not correctly handle the case of a | 28 | *(.image) |
| 64 | text segment ending precisely at the end of a page; it causes the | 29 | __image_end = .; |
| 65 | data segment to skip a page. The above expression does not have | 30 | CONSTRUCTORS |
| 66 | this problem, but it will currently (2/95) cause BFD to allocate | 31 | } |
| 67 | a single segment, combining both text and data, for this case. | 32 | .sdata : { *(.sdata) } |
| 68 | This will prevent the text segment from being shared among | 33 | . = ALIGN(4); |
| 69 | multiple executions of the program; I think that is more | 34 | _edata = .; /* End of data section */ |
| 70 | important than losing a page of the virtual address space (note | ||
| 71 | that no actual memory is lost; the page which is skipped can not | ||
| 72 | be referenced). */ | ||
| 73 | . = .; | ||
| 74 | .data : | ||
| 75 | { | ||
| 76 | _fdata = . ; | ||
| 77 | *(.data) | ||
| 78 | 35 | ||
| 79 | /* Put the compressed image here, so bss is on the end. */ | 36 | /* BSS */ |
| 80 | __image_begin = .; | 37 | __bss_start = .; |
| 81 | *(.image) | 38 | _fbss = .; |
| 82 | __image_end = .; | 39 | .sbss : { *(.sbss) *(.scommon) } |
| 83 | /* Align the initial ramdisk image (INITRD) on page boundaries. */ | 40 | .bss : { |
| 84 | . = ALIGN(4096); | 41 | *(.dynbss) |
| 85 | __ramdisk_begin = .; | 42 | *(.bss) |
| 86 | *(.initrd) | 43 | *(COMMON) |
| 87 | __ramdisk_end = .; | 44 | } |
| 88 | . = ALIGN(4096); | 45 | . = ALIGN(4); |
| 46 | _end = . ; | ||
| 89 | 47 | ||
| 90 | CONSTRUCTORS | 48 | /* These are needed for ELF backends which have not yet been converted |
| 91 | } | 49 | * to the new style linker. */ |
| 92 | .data1 : { *(.data1) } | ||
| 93 | _gp = . + 0x8000; | ||
| 94 | .lit8 : { *(.lit8) } | ||
| 95 | .lit4 : { *(.lit4) } | ||
| 96 | .ctors : { *(.ctors) } | ||
| 97 | .dtors : { *(.dtors) } | ||
| 98 | .got : { *(.got.plt) *(.got) } | ||
| 99 | .dynamic : { *(.dynamic) } | ||
| 100 | /* We want the small data sections together, so single-instruction offsets | ||
| 101 | can access them all, and initialized data all before uninitialized, so | ||
| 102 | we can shorten the on-disk segment size. */ | ||
| 103 | .sdata : { *(.sdata) } | ||
| 104 | . = ALIGN(4); | ||
| 105 | _edata = .; | ||
| 106 | PROVIDE (edata = .); | ||
| 107 | 50 | ||
| 108 | __bss_start = .; | 51 | .stab 0 : { *(.stab) } |
| 109 | _fbss = .; | 52 | .stabstr 0 : { *(.stabstr) } |
| 110 | .sbss : { *(.sbss) *(.scommon) } | ||
| 111 | .bss : | ||
| 112 | { | ||
| 113 | *(.dynbss) | ||
| 114 | *(.bss) | ||
| 115 | *(COMMON) | ||
| 116 | . = ALIGN(4); | ||
| 117 | _end = . ; | ||
| 118 | PROVIDE (end = .); | ||
| 119 | } | ||
| 120 | 53 | ||
| 121 | /* Sections to be discarded */ | 54 | /* These must appear regardless of . */ |
| 122 | /DISCARD/ : | 55 | .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) } |
| 123 | { | 56 | .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) } |
| 124 | *(.text.exit) | ||
| 125 | *(.data.exit) | ||
| 126 | *(.exitcall.exit) | ||
| 127 | } | ||
| 128 | 57 | ||
| 129 | /* This is the MIPS specific mdebug section. */ | 58 | /* Sections to be discarded */ |
| 130 | .mdebug : { *(.mdebug) } | 59 | /DISCARD/ : { |
| 131 | /* These are needed for ELF backends which have not yet been | 60 | *(.MIPS.options) |
| 132 | converted to the new style linker. */ | 61 | *(.options) |
| 133 | .stab 0 : { *(.stab) } | 62 | *(.pdr) |
| 134 | .stabstr 0 : { *(.stabstr) } | 63 | *(.reginfo) |
| 135 | /* DWARF debug sections. | 64 | *(.comment) |
| 136 | Symbols in the .debug DWARF section are relative to the beginning of the | 65 | *(.note) |
| 137 | section so we begin .debug at 0. It's not clear yet what needs to happen | 66 | } |
| 138 | for the others. */ | ||
| 139 | .debug 0 : { *(.debug) } | ||
| 140 | .debug_srcinfo 0 : { *(.debug_srcinfo) } | ||
| 141 | .debug_aranges 0 : { *(.debug_aranges) } | ||
| 142 | .debug_pubnames 0 : { *(.debug_pubnames) } | ||
| 143 | .debug_sfnames 0 : { *(.debug_sfnames) } | ||
| 144 | .line 0 : { *(.line) } | ||
| 145 | /* These must appear regardless of . */ | ||
| 146 | .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) } | ||
| 147 | .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) } | ||
| 148 | .comment : { *(.comment) } | ||
| 149 | .note : { *(.note) } | ||
| 150 | } | 67 | } |
