diff --git a/src/system/ldscripts/arm64/kernel.ld b/src/system/ldscripts/arm64/kernel.ld index e59871adda..221512067c 100644 --- a/src/system/ldscripts/arm64/kernel.ld +++ b/src/system/ldscripts/arm64/kernel.ld @@ -4,57 +4,182 @@ OUTPUT_ARCH(aarch64) ENTRY(_start) SECTIONS { - . = 0xFFFFFFFF80000000 + SIZEOF_HEADERS; + . = 0xFFFFFFFF80000000 + SIZEOF_HEADERS; - .interp : { *(.interp) } - .hash : { *(.hash) } - .dynsym : { *(.dynsym) } - .dynstr : { *(.dynstr) } - .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) } - .rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) } - .rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) } - .rela.got : { *(.rela.got) } - .rela.ctors : { *(.rela.ctors) } - .rela.dtors : { *(.rela.dtors) } - .rela.init : { *(.rela.init) } - .rela.fini : { *(.rela.fini) } - .rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) } - .rela.plt : { *(.rela.plt) } - .init : { *(.init) } =0x90909090 - .plt : { *(.plt) } - - /* text/read-only data */ - .text : { *(.text .text.* .gnu.linkonce.t.*) } =0x90909090 - - .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } - - . = ALIGN(0x8); - altcodepatch_begin = .; - .altcodepatch : { *(.altcodepatch) } - altcodepatch_end = .; - - /* writable data */ - . = ALIGN (0x1000); - __data_start = .; - .data : { *(.data .data.* .gnu.linkonce.d.*) } - - . = ALIGN(0x8); - __ctor_list = .; - .ctors : { *(.init_array) *(.ctors) } - __ctor_end = .; - __dtor_list = .; - .dtors : { *(.fini_array) *(.dtors) } - __dtor_end = .; - .got : { *(.got.plt) *(.got) } - .dynamic : { *(.dynamic) } - - /* uninitialized data (in same segment as writable data) */ - __bss_start = .; - .bss : { *(.bss .bss.* .gnu.linkonce.b.*) } - - . = ALIGN(0x1000); - _end = .; - - /* Strip unnecessary stuff */ - /DISCARD/ : { *(.comment .note .eh_frame) } + .interp : { *(.interp) } + .note.gnu.build-id : { *(.note.gnu.build-id) } + .hash : { *(.hash) } + .gnu.hash : { *(.gnu.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + .rela.dyn : + { + *(.rela.init) + *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) + *(.rela.fini) + *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) + *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) + *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) + *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) + *(.rela.ctors) + *(.rela.dtors) + *(.rela.got) + *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) + *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) + *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) + *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) + *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) + PROVIDE_HIDDEN (__rela_iplt_start = .); + *(.rela.iplt) + PROVIDE_HIDDEN (__rela_iplt_end = .); + } + .rela.plt : + { + *(.rela.plt) + } + .init : + { + KEEP (*(SORT_NONE(.init))) + } + .plt : { *(.plt) } + .iplt : { *(.iplt) } + .text : + { + *(.text.unlikely .text.*_unlikely .text.unlikely.*) + *(.text.exit .text.exit.*) + *(.text.startup .text.startup.*) + *(.text.hot .text.hot.*) + *(.text .stub .text.* .gnu.linkonce.t.*) + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + } + .fini : + { + KEEP (*(SORT_NONE(.fini))) + } + PROVIDE (__etext = .); + PROVIDE (_etext = .); + PROVIDE (etext = .); + .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } + .rodata1 : { *(.rodata1) } + .sdata2 : + { + *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) + } + .sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) } + .eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) } + .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) *(.eh_frame.*) } + .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table + .gcc_except_table.*) } + .gnu_extab : ONLY_IF_RO { *(.gnu_extab*) } + /* Adjust the address for the data segment. We want to adjust up to + * the same address within the page on the next page up. */ + . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE)); + /* Exception handling */ + .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) *(.eh_frame.*) } + .gnu_extab : ONLY_IF_RW { *(.gnu_extab) } + .gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } + .exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } + /* 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 (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*))) + KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors)) + PROVIDE_HIDDEN (__init_array_end = .); + } + .fini_array : + { + PROVIDE_HIDDEN (__fini_array_start = .); + KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*))) + KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors)) + 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)) + KEEP (*crtbegin?.o(.ctors)) + /* We don't want to include the .ctor section 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 *crtend?.o ) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + } + .dtors : + { + KEEP (*crtbegin.o(.dtors)) + KEEP (*crtbegin?.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + } + .jcr : { KEEP (*(.jcr)) } + .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) } + .dynamic : { *(.dynamic) } + . = DATA_SEGMENT_RELRO_END (0, .); + .data : + { + *(.data .data.* .gnu.linkonce.d.*) + SORT(CONSTRUCTORS) + } + .data1 : { *(.data1) } + .got : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) } + /* 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 : + { + __global_pointer$ = . + 0x800; + *(.srodata.cst16) *(.srodata.cst8) *(.srodata.cst4) *(.srodata.cst2) *(.srodata .srodata.*) + *(.sdata .sdata.* .gnu.linkonce.s.*) + } + _edata = .; PROVIDE (edata = .); + . = .; + __bss_start = .; + .sbss : + { + *(.dynsbss) + *(.sbss .sbss.* .gnu.linkonce.sb.*) + *(.scommon) + } + .bss : + { + *(.dynbss) + *(.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 ? 64 / 8 : 1); + } + . = ALIGN(64 / 8); + . = SEGMENT_START("ldata-segment", .); + . = ALIGN(64 / 8); + _end = .; PROVIDE (end = .); + . = DATA_SEGMENT_END (.); + /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) } }