--- i386.ld +++ i386.ld @@ -1,116 +1,164 @@ -/* ld script to make i386 Linux kernel - * Written by Martin Mares ; - */ -OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") +/* Default linker script, for normal executables */ +OUTPUT_FORMAT("elf32-i386", "elf32-i386", + "elf32-i386") OUTPUT_ARCH(i386) -SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/alpha-unknown-linux-gnu/lib); ENTRY(_start) +SEARCH_DIR("/usr/i586-suse-linux/lib"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib"); SECTIONS { /* Read-only sections, merged into text segment: */ - . = 0x60000000 + SIZEOF_HEADERS; - .interp : { *(.interp) } - .hash : { *(.hash) } - .dynsym : { *(.dynsym) } - .dynstr : { *(.dynstr) } - .gnu.version : { *(.gnu.version) } - .gnu.version_d : { *(.gnu.version_d) } - .gnu.version_r : { *(.gnu.version_r) } - .rel.text : - { *(.rel.text) *(.rel.gnu.linkonce.t*) } - .rela.text : - { *(.rela.text) *(.rela.gnu.linkonce.t*) } - .rel.data : - { *(.rel.data) *(.rel.gnu.linkonce.d*) } - .rela.data : - { *(.rela.data) *(.rela.gnu.linkonce.d*) } - .rel.rodata : - { *(.rel.rodata) *(.rel.gnu.linkonce.r*) } - .rela.rodata : - { *(.rela.rodata) *(.rela.gnu.linkonce.r*) } - .rel.got : { *(.rel.got) } - .rela.got : { *(.rela.got) } - .rel.ctors : { *(.rel.ctors) } - .rela.ctors : { *(.rela.ctors) } - .rel.dtors : { *(.rel.dtors) } - .rela.dtors : { *(.rela.dtors) } - .rel.init : { *(.rel.init) } - .rela.init : { *(.rela.init) } - .rel.fini : { *(.rel.fini) } - .rela.fini : { *(.rela.fini) } - .rel.bss : { *(.rel.bss) } - .rela.bss : { *(.rela.bss) } - .rel.plt : { *(.rel.plt) } - .rela.plt : { *(.rela.plt) } - .init : { *(.init) } =0x47ff041f - .text : + PROVIDE (__executable_start = 0x60000000); . = 0x60000000 + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + .rel.init : { *(.rel.init) } + .rela.init : { *(.rela.init) } + .rel.text : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) } + .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) } + .rel.fini : { *(.rel.fini) } + .rela.fini : { *(.rela.fini) } + .rel.rodata : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) } + .rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) } + .rel.data.rel.ro : { *(.rel.data.rel.ro*) } + .rela.data.rel.ro : { *(.rel.data.rel.ro*) } + .rel.data : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) } + .rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) } + .rel.tdata : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) } + .rela.tdata : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) } + .rel.tbss : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) } + .rela.tbss : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) } + .rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { - *(.text) + KEEP (*(.init)) + } =0x90909090 + .plt : { *(.plt) } + .text : + { + *(.text .stub .text.* .gnu.linkonce.t.*) + KEEP (*(.text.*personality*)) /* .gnu.warning sections are handled specially by elf32.em. */ *(.gnu.warning) - *(.gnu.linkonce.t*) - } =0x47ff041f - _etext = .; + } =0x90909090 + .fini : + { + KEEP (*(.fini)) + } =0x90909090 + PROVIDE (__etext = .); + PROVIDE (_etext = .); PROVIDE (etext = .); - .fini : { *(.fini) } =0x47ff041f - . = ALIGN(32 / 8); - PROVIDE (__preinit_array_start = .); - .preinit_array : { *(.preinit_array) } - PROVIDE (__preinit_array_end = .); - PROVIDE (__init_array_start = .); - .init_array : { *(.init_array) } - PROVIDE (__init_array_end = .); - PROVIDE (__fini_array_start = .); - .fini_array : { *(.fini_array) } - PROVIDE (__fini_array_end = .); - .rodata : { *(.rodata) *(.gnu.linkonce.r*) } - .rodata1 : { *(.rodata1) } - .reginfo : { *(.reginfo) } + .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } + .rodata1 : { *(.rodata1) } + .eh_frame_hdr : { *(.eh_frame_hdr) } + .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } + .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) } /* Adjust the address for the data segment. We want to adjust up to the same address within the page on the next page up. */ - . = ALIGN(0x100000) + (. & (0x100000 - 1)); - .data : + . = ALIGN (0x1000) - ((0x1000 - .) & (0x1000 - 1)); . = DATA_SEGMENT_ALIGN (0x1000, 0x1000); + /* Exception handling */ + .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } + .gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } + /* Thread Local Storage sections */ + .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } + .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } + .preinit_array : + { + PROVIDE_HIDDEN (__preinit_array_start = .); + KEEP (*(.preinit_array)) + PROVIDE_HIDDEN (__preinit_array_end = .); + } + .init_array : + { + PROVIDE_HIDDEN (__init_array_start = .); + KEEP (*(.init_array)) + PROVIDE_HIDDEN (__init_array_end = .); + } + .fini_array : + { + PROVIDE_HIDDEN (__fini_array_start = .); + KEEP (*(.fini_array)) + PROVIDE_HIDDEN (__fini_array_end = .); + } + .ctors : + { + /* gcc uses crtbegin.o to find the start of + the constructors, so we make sure it is + first. Because this is a wildcard, it + doesn't matter if the user does not + actually link against crtbegin.o; the + linker won't look for a file to match a + wildcard. The wildcard also means that it + doesn't matter which directory crtbegin.o + is in. */ + KEEP (*crtbegin*.o(.ctors)) + /* We don't want to include the .ctor section from + from the crtend.o file until after the sorted ctors. + The .ctor section from the crtend file contains the + end of ctors marker and it must be last */ + KEEP (*(EXCLUDE_FILE (*crtend*.o ) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + } + .dtors : + { + KEEP (*crtbegin*.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + } + .jcr : { KEEP (*(.jcr)) } + .data.rel.ro : { *(.data.rel.ro.local) *(.data.rel.ro*) } + .dynamic : { *(.dynamic) } + .got : { *(.got) } + . = DATA_SEGMENT_RELRO_END (12, .); + .got.plt : { *(.got.plt) } + .data : { - *(.data) - *(.gnu.linkonce.d*) - CONSTRUCTORS - } - .data1 : { *(.data1) } - .ctors : - { - *(.ctors) - } - .dtors : - { - *(.dtors) - } - .plt : { *(.plt) } - .got : { *(.got.plt) *(.got) } - .dynamic : { *(.dynamic) } - /* We want the small data sections together, so single-instruction offsets - can access them all, and initialized data all before uninitialized, so - we can shorten the on-disk segment size. */ - .sdata : { *(.sdata) } - _edata = .; - PROVIDE (edata = .); + *(.data .data.* .gnu.linkonce.d.*) + KEEP (*(.gnu.linkonce.d.*personality*)) + SORT(CONSTRUCTORS) + } + .data1 : { *(.data1) } + _edata = .; PROVIDE (edata = .); __bss_start = .; - .sbss : { *(.sbss) *(.scommon) } - .bss : + .bss : { *(.dynbss) - *(.bss) + *(.bss .bss.* .gnu.linkonce.b.*) *(COMMON) + /* Align here to ensure that the .bss section occupies space up to + _end. Align after .bss to ensure correct alignment even if the + .bss section disappears because there are no input sections. + FIXME: Why do we need it? When there is no .bss section, we don't + pad the .data section. */ + . = ALIGN(. != 0 ? 32 / 8 : 1); } - _end = . ; + . = ALIGN(32 / 8); + . = ALIGN(32 / 8); + _end = .; PROVIDE (end = .); + . = DATA_SEGMENT_END (.); /* Stabs debugging sections. */ - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } + .comment 0 : { *(.comment) } /* DWARF debug sections. Symbols in the DWARF debugging sections are relative to the beginning of the section so we begin them at 0. */ @@ -124,7 +172,7 @@ .debug_aranges 0 : { *(.debug_aranges) } .debug_pubnames 0 : { *(.debug_pubnames) } /* DWARF 2 */ - .debug_info 0 : { *(.debug_info) } + .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } .debug_abbrev 0 : { *(.debug_abbrev) } .debug_line 0 : { *(.debug_line) } .debug_frame 0 : { *(.debug_frame) } @@ -136,5 +184,5 @@ .debug_funcnames 0 : { *(.debug_funcnames) } .debug_typenames 0 : { *(.debug_typenames) } .debug_varnames 0 : { *(.debug_varnames) } - /* These must appear regardless of . */ + /DISCARD/ : { *(.note.GNU-stack) } }