1/* $NetBSD: kern.ldscript,v 1.6 2014/01/19 02:32:21 mrg Exp $ */ 2 3/* ldscript for NetBSD/powerpc kernels and LKMs, based on elf32ppc.x */ 4OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", 5 "elf32-powerpc") 6OUTPUT_ARCH(powerpc:common) 7ENTRY(_start) 8SEARCH_DIR(/lib); 9/* Do we need any of these? 10 __DYNAMIC = 0; */ 11_DYNAMIC_LINK = 0; 12SECTIONS 13{ 14 /* Read-only sections, merged into text segment. Assumes the 15 kernel Makefile sets the start address via -Ttext. */ 16 .text : 17 { 18 _ftext = . ; 19 PROVIDE_HIDDEN (__eprol = .); 20 *(.text) 21 *(.text.unlikely .text.*_unlikely) 22 *(.text.exit .text.exit.*) 23 *(.text.startup .text.startup.*) 24 *(.text.hot .text.hot.*) 25 *(.text.* .gnu.linkonce.t.*) 26 __stub_start = .; 27 *(.stub) 28 __stub_end = .; 29 __stub_pmap_start = .; 30 *(.stub.pmap) 31 __stub_pmap_end = .; 32 /* .gnu.warning sections are handled specially by elf32.em. */ 33 *(.gnu.warning) 34 *(.glink) 35 } =0 36 _etext = .; 37 PROVIDE (__etext = .); 38 PROVIDE (_etext = .); 39 PROVIDE (etext = .); 40 .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } 41 .rodata1 : { *(.rodata1) } 42 .sdata2 : 43 { 44 PROVIDE (_SDA2_BASE_ = 32768); 45 *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) 46 } 47 .sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) } 48 /*.jcr : { KEEP (*(.jcr)) } */ /* XXX??? */ 49 .reginfo : { *(.reginfo) } 50/* . = . + 0x1000; */ 51 .data : 52 { 53 _fdata = . ; 54 *(.data .data.* .gnu.linkonce.d.*) 55 SORT(CONSTRUCTORS) 56 } 57 .data1 : { *(.data1) } 58 . = ALIGN(32); /* COHERENCY UNIT */ 59 .data.cacheline_aligned : { *(.data.cacheline_aligned) } 60 . = ALIGN(32); /* COHERENCY UNIT */ 61 .data.read_mostly : { *(.data.read_mostly) } 62 . = ALIGN(32); /* COHERENCY UNIT */ 63 _gp = ALIGN(16) + 0x7ff0; 64 .lit8 : { *(.lit8) } 65 .lit4 : { *(.lit4) } 66 .sdata : 67 { 68 PROVIDE (_SDA_BASE_ = 32768); 69 *(.sdata .sdata.* .gnu.linkonce.s.*) 70 } 71 _edata = .; PROVIDE (edata = .); 72 . = .; 73 __bss_start = .; 74 _fbss = .; 75 .sbss : 76 { 77 PROVIDE (__sbss_start = .); PROVIDE (___sbss_start = .); 78 *(.dynsbss) 79 *(.sbss .sbss.* .gnu.linkonce.sb.*) 80 *(.scommon) 81 PROVIDE (__sbss_end = .); PROVIDE (___sbss_end = .); 82 } 83 .bss : 84 { 85 *(.dynbss) 86 *(.bss .bss.* .gnu.linkonce.b.*) 87 *(COMMON) 88 /* Align here to ensure that the .bss section occupies space up to 89 _end. Align after .bss to ensure correct alignment even if the 90 .bss section disappears because there are no input sections. 91 FIXME: Why do we need it? When there is no .bss section, we don't 92 pad the .data section. */ 93 . = ALIGN(. != 0 ? 32 / 8 : 1); 94 } 95 . = ALIGN(32 / 8); 96 . = ALIGN(32 / 8); 97 __end = .; 98 _end = .; PROVIDE (end = .); 99 /* . = DATA_SEGMENT_END (.); */ 100 /* Stabs debugging sections. */ 101 .stab 0 : { *(.stab) } 102 .stabstr 0 : { *(.stabstr) } 103 .stab.excl 0 : { *(.stab.excl) } 104 .stab.exclstr 0 : { *(.stab.exclstr) } 105 .stab.index 0 : { *(.stab.index) } 106 .stab.indexstr 0 : { *(.stab.indexstr) } 107 .comment 0 : { *(.comment) } 108 /* DWARF debug sections. 109 Symbols in the DWARF debugging sections are relative to the beginning 110 of the section so we begin them at 0. */ 111 /* DWARF 1 */ 112 .debug 0 : { *(.debug) } 113 .line 0 : { *(.line) } 114 /* GNU DWARF 1 extensions */ 115 .debug_srcinfo 0 : { *(.debug_srcinfo) } 116 .debug_sfnames 0 : { *(.debug_sfnames) } 117 /* DWARF 1.1 and DWARF 2 */ 118 .debug_aranges 0 : { *(.debug_aranges) } 119 .debug_pubnames 0 : { *(.debug_pubnames) } 120 /* DWARF 2 */ 121 .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } 122 .debug_abbrev 0 : { *(.debug_abbrev) } 123 .debug_line 0 : { *(.debug_line) } 124 .debug_frame 0 : { *(.debug_frame) } 125 .debug_str 0 : { *(.debug_str) } 126 .debug_loc 0 : { *(.debug_loc) } 127 .debug_macinfo 0 : { *(.debug_macinfo) } 128 /* SGI/MIPS DWARF 2 extensions */ 129 .debug_weaknames 0 : { *(.debug_weaknames) } 130 .debug_funcnames 0 : { *(.debug_funcnames) } 131 .debug_typenames 0 : { *(.debug_typenames) } 132 .debug_varnames 0 : { *(.debug_varnames) } 133 /* DWARF 3 */ 134 .debug_pubtypes 0 : { *(.debug_pubtypes) } 135 .debug_ranges 0 : { *(.debug_ranges) } 136 /* DWARF Extension. */ 137 .debug_macro 0 : { *(.debug_macro) } 138 .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } 139 .line 0 : { *(.line) } 140 /* These must appear regardless of . */ 141 .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) } 142 .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) } 143} 144