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Added riscv.ld linker script (static entry point at 0x10000)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,200 @@ | ||
| /* Default linker script, for normal executables */ | ||
| /* Copyright (C) 2014-2016 Free Software Foundation, Inc. | ||
| Copying and distribution of this script, with or without modification, | ||
| are permitted in any medium without royalty provided the copyright | ||
| notice and this notice are preserved. */ | ||
| OUTPUT_FORMAT("elf32-littleriscv", "elf32-littleriscv", | ||
| "elf32-littleriscv") | ||
| OUTPUT_ARCH(riscv) | ||
| ENTRY(_start) | ||
| SECTIONS | ||
| { | ||
| . = 0x00010000; | ||
| .text : | ||
| { | ||
| *(.text) | ||
| *(.text.unlikely .text.*_unlikely .text.unlikely.*) | ||
| *(.text.exit .text.exit.*) | ||
| *(.text.startup .text.startup.*) | ||
| *(.text.hot .text.hot.*) | ||
| *(.stub .text.* .gnu.linkonce.t.*) | ||
| /* .gnu.warning sections are handled specially by elf32.em. */ | ||
| *(.gnu.warning) | ||
| } | ||
| .init : | ||
| { | ||
| KEEP (*(SORT_NONE(.init))) | ||
| } | ||
| .plt : { *(.plt) } | ||
| .iplt : { *(.iplt) } | ||
| .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*) } | ||
| /* These sections are generated by the Sun/Oracle C++ compiler. */ | ||
| .exception_ranges : ONLY_IF_RO { *(.exception_ranges | ||
| .exception_ranges*) } | ||
| /* 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 : | ||
| { | ||
| _gp = . + 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 ? 32 / 8 : 1); | ||
| } | ||
| . = ALIGN(32 / 8); | ||
| . = SEGMENT_START("ldata-segment", .); | ||
| . = 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.indexstr 0 : { *(.stab.indexstr) } | ||
| .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. */ | ||
| /* DWARF 1 */ | ||
| .debug 0 : { *(.debug) } | ||
| .line 0 : { *(.line) } | ||
| /* GNU DWARF 1 extensions */ | ||
| .debug_srcinfo 0 : { *(.debug_srcinfo) } | ||
| .debug_sfnames 0 : { *(.debug_sfnames) } | ||
| /* DWARF 1.1 and DWARF 2 */ | ||
| .debug_aranges 0 : { *(.debug_aranges) } | ||
| .debug_pubnames 0 : { *(.debug_pubnames) } | ||
| /* DWARF 2 */ | ||
| .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } | ||
| .debug_abbrev 0 : { *(.debug_abbrev) } | ||
| .debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end ) } | ||
| .debug_frame 0 : { *(.debug_frame) } | ||
| .debug_str 0 : { *(.debug_str) } | ||
| .debug_loc 0 : { *(.debug_loc) } | ||
| .debug_macinfo 0 : { *(.debug_macinfo) } | ||
| /* SGI/MIPS DWARF 2 extensions */ | ||
| .debug_weaknames 0 : { *(.debug_weaknames) } | ||
| .debug_funcnames 0 : { *(.debug_funcnames) } | ||
| .debug_typenames 0 : { *(.debug_typenames) } | ||
| .debug_varnames 0 : { *(.debug_varnames) } | ||
| /* DWARF 3 */ | ||
| .debug_pubtypes 0 : { *(.debug_pubtypes) } | ||
| .debug_ranges 0 : { *(.debug_ranges) } | ||
| /* DWARF Extension. */ | ||
| .debug_macro 0 : { *(.debug_macro) } | ||
| .debug_addr 0 : { *(.debug_addr) } | ||
| .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } | ||
| /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) } | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| --- <(riscv32-unknown-elf-ld -z nocombreloc -verbose) 2017-01-13 16:55:07.569030165 +0100 | ||
| +++ riscv.ld 2017-01-13 16:56:47.796761642 +0100 | ||
| @@ -1,9 +1,3 @@ | ||
| -GNU ld (GNU Binutils) 2.28.51.20170101 | ||
| - Supported emulations: | ||
| - elf32lriscv | ||
| - elf64lriscv | ||
| -using internal linker script: | ||
| -================================================== | ||
| /* Default linker script, for normal executables */ | ||
| /* Copyright (C) 2014-2016 Free Software Foundation, Inc. | ||
| Copying and distribution of this script, with or without modification, | ||
| @@ -13,62 +7,26 @@ | ||
| "elf32-littleriscv") | ||
| OUTPUT_ARCH(riscv) | ||
| ENTRY(_start) | ||
| -SEARCH_DIR("/opt/new_riscv32i/riscv32-unknown-elf/lib"); | ||
| SECTIONS | ||
| { | ||
| - /* Read-only sections, merged into text segment: */ | ||
| - PROVIDE (__executable_start = SEGMENT_START("text-segment", 0x10000)); . = SEGMENT_START("text-segment", 0x10000) + SIZEOF_HEADERS; | ||
| - .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.init : { *(.rela.init) } | ||
| - .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) } | ||
| - .rela.fini : { *(.rela.fini) } | ||
| - .rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) } | ||
| - .rela.data.rel.ro : { *(.rela.data.rel.ro .rela.data.rel.ro.* .rela.gnu.linkonce.d.rel.ro.*) } | ||
| - .rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) } | ||
| - .rela.tdata : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) } | ||
| - .rela.tbss : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) } | ||
| - .rela.ctors : { *(.rela.ctors) } | ||
| - .rela.dtors : { *(.rela.dtors) } | ||
| - .rela.got : { *(.rela.got) } | ||
| - .rela.sdata : { *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) } | ||
| - .rela.sbss : { *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) } | ||
| - .rela.sdata2 : { *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) } | ||
| - .rela.sbss2 : { *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) } | ||
| - .rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) } | ||
| - .rela.iplt : | ||
| - { | ||
| - 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) } | ||
| + . = 0x00010000; | ||
| .text : | ||
| { | ||
| + *(.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.*) | ||
| + *(.stub .text.* .gnu.linkonce.t.*) | ||
| /* .gnu.warning sections are handled specially by elf32.em. */ | ||
| *(.gnu.warning) | ||
| } | ||
| + .init : | ||
| + { | ||
| + KEEP (*(SORT_NONE(.init))) | ||
| + } | ||
| + .plt : { *(.plt) } | ||
| + .iplt : { *(.iplt) } | ||
| .fini : | ||
| { | ||
| KEEP (*(SORT_NONE(.fini))) | ||
| @@ -240,5 +198,3 @@ | ||
| /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) } | ||
| } | ||
|
|
||
| - | ||
| -================================================== |
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