249 lines
9.5 KiB
Plaintext
249 lines
9.5 KiB
Plaintext
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OUTPUT_FORMAT("elf32-ms1", "elf32-ms1", "elf32-ms1")
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OUTPUT_ARCH(ms1)
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ENTRY(__boot_start)
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SEARCH_DIR(/usr/local/mrisc1-elf/lib)
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/* Do we need any of these for elf?
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__DYNAMIC = 0; */
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MEMORY
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{
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ram (rwx) : ORIGIN = 0x0, LENGTH = 128K
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frame-buffer (w) : ORIGIN = 0xde0000, LENGTH = 40K
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ports (w) : ORIGIN = 0xfff000, LENGTH = 4K
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dma-ram (w) : ORIGIN = 0x1000000, LENGTH = 16M-4K
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}
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SECTIONS
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{
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/* Read-only sections, merged into text segment: */
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. = 0x0;
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PROVIDE(__executable_start = 0x0);
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.interp : { *(.interp) }
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.hash : { *(.hash) }
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.dynsym : { *(.dynsym) }
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.dynstr : { *(.dynstr) }
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.gnu.version : { *(.gnu.version) }
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.gnu.version_d : { *(.gnu.version_d) }
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.gnu.version_r : { *(.gnu.version_r) }
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.rel.init : { *(.rel.init) }
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.rela.init : { *(.rela.init) }
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.rel.text : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) }
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.rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) }
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.rel.fini : { *(.rel.fini) }
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.rela.fini : { *(.rela.fini) }
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.rel.rodata : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) }
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.rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) }
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.rel.data.rel.ro : { *(.rel.data.rel.ro*) }
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.rela.data.rel.ro : { *(.rela.data.rel.ro*) }
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.rel.data : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) }
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.rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) }
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.rel.tdata : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) }
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.rela.tdata : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) }
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.rel.tbss : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) }
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.rela.tbss : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) }
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.rel.ctors : { *(.rel.ctors) }
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.rela.ctors : { *(.rela.ctors) }
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.rel.dtors : { *(.rel.dtors) }
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.rela.dtors : { *(.rela.dtors) }
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.rel.got : { *(.rel.got) }
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.rela.got : { *(.rela.got) }
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.rel.sdata : { *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) }
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.rela.sdata : { *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) }
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.rel.sbss : { *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) }
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.rela.sbss : { *(.rela.sbss .rela.sbss.* .rel.gnu.linkonce.sb.*) }
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.rel.sdata2 : { *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) }
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.rela.sdata2 : { *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) }
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.rel.sbss2 : { *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) }
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.rela.sbss2 : { *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) }
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.rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) }
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.rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
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.rel.plt : { *(.rel.plt) }
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.rela.plt : { *(.rela.plt) }
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.startup : { *startup-16-002.o(.startup) } >ram =0
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. = 0x40 ;
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.init : { KEEP (*(.init)) } >ram =0
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.plt : { *(.plt) } >ram
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.text :
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{
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*startup-16-002.o(.text)
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*(.text .stub .text.* .gnu.linkonce.t.*)
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KEEP (*(.text.*personality*))
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/* .gnu.warning sections are handled specially by elf32.em. */
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*(.gnu.warning)
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} >ram =0
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.fini : { KEEP (*(.fini)) } >ram =0
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PROVIDE (__etext = .);
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PROVIDE (_etext = .);
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PROVIDE (etext = .);
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.rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } >ram
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.rodata1 : { *(.rodata1) } >ram
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.sdata2 : { *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } >ram
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.sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) } >ram
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.eh_frame_hdr : { *(.eh_frame_hdr) } >ram
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.eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } >ram
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.gcc_except_table : ONLY_IF_RO { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) } >ram
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/* Adjust the address for the data segment. We want to adjust up to
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the same address within the page on the next page up. */
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. = ALIGN(256) + (. & (256 - 1));
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/* Exception handling */
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.eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } >ram
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.gcc_except_table : ONLY_IF_RW { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) } >ram
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/* Thread Local Storage sections */
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.tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } >ram
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.tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } >ram
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/* Ensure the __preinit_array_start label is properly aligned. We
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could instead move the label definition inside the section, but
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the linker would then create the section even if it turns out to
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be empty, which isn't pretty. */
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. = ALIGN(32 / 8);
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PROVIDE (__preinit_array_start = .);
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.preinit_array : { *(.preinit_array) } >ram
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PROVIDE (__preinit_array_end = .);
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PROVIDE (__init_array_start = .);
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.init_array : { *(.init_array) } >ram
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PROVIDE (__init_array_end = .);
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PROVIDE (__fini_array_start = .);
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.fini_array : { *(.fini_array) } >ram
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PROVIDE (__fini_array_end = .);
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.ctors :
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{
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/* gcc uses crtbegin.o to find the start of
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the constructors, so we make sure it is
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first. Because this is a wildcard, it
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doesn't matter if the user does not
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actually link against crtbegin.o; the
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linker won't look for a file to match a
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wildcard. The wildcard also means that it
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doesn't matter which directory crtbegin.o
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is in. */
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KEEP (*crtbegin.o(.ctors))
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/* We don't want to include the .ctor section from
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from the crtend.o file until after the sorted ctors.
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The .ctor section from the crtend file contains the
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end of ctors marker and it must be last */
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KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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} >ram
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.dtors :
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{
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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} >ram
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.jcr : { KEEP (*(.jcr)) } >ram
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.data.rel.ro : { *(.data.rel.ro.local) *(.data.rel.ro*) } >ram
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.dynamic : { *(.dynamic) } >ram
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/* DJK - Re-align the data section from the read-only section. */
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. = ALIGN(16) + (. & (16 - 1));
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PROVIDE (_data = .);
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.data :
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{
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*(.data .data.* .gnu.linkonce.d.*)
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SORT(CONSTRUCTORS)
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} >ram
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.data1 : { *(.data1) } >ram
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.got : { *(.got.plt) *(.got) } >ram
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/* We want the small data sections together, so single-instruction offsets
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can access them all, and initialized data all before uninitialized, so
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we can shorten the on-disk segment size. */
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.sdata : { *(.sdata .sdata.* .gnu.linkonce.s.*) } >ram
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_edata = .;
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PROVIDE ( edata = . ) ;
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.sbss :
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{
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PROVIDE (__sbss_start = .);
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PROVIDE (___sbss_start = .);
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*(.dynsbss)
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*(.sbss .sbss.* .gnu.linkonce.sb.*)
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*(.scommon)
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PROVIDE (__sbss_end = .);
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PROVIDE (___sbss_end = .);
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} >ram
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.bss :
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{
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*(.dynbss)
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*(.bss .bss.* .gnu.linkonce.b.*)
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*(COMMON)
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/* Align here to ensure that the .bss section occupies space up to
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_end. Align after .bss to ensure correct alignment even if the
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.bss section disappears because there are no input sections. */
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. = ALIGN(32 / 8);
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} >ram
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. = ALIGN(32 / 8);
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__bss_start = ADDR ( .sbss ) ;
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__bss_end = __bss_start + SIZEOF ( .sbss ) + SIZEOF ( .bss ) - 4 ;
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_end = .;
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PROVIDE (end = .);
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/* DJK - Initialized frame buffer data is copied from RAM to FB. */
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.auxbss : AT (ADDR(.bss) + SIZEOF(.bss)) { *(.auxbss) } >frame-buffer
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.auxdata : AT (LOADADDR(.auxbss) + SIZEOF(.auxbss))
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{
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*(.auxdata)
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} >frame-buffer
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_fbbss_start = ADDR ( .auxbss );
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_fbbss_end = _fbbss_start + SIZEOF ( .auxbss ) - 4;
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_fbdata_start = LOADADDR ( .auxdata );
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_fbdata_end = _fbdata_start + SIZEOF ( .auxdata ) ;
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_fbdata_vma = ADDR ( .auxdata );
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PROVIDE (__FRAME_BUFFER_START = ADDR(.auxbss) );
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PROVIDE (__FRAME_BUFFER_SIZE = 0xa000);
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PROVIDE (__FRAME_BUFFER_END = __FRAME_BUFFER_START + __FRAME_BUFFER_SIZE);
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.dma : { _dma_start = .; *(.dma) _dma_end = .; } >dma-ram
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.internal_io (NOLOAD) : { *(.internal_io) } >ports
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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/* DWARF debug sections.
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Symbols in the DWARF debugging sections are relative to the beginning
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of the section so we begin them at 0. */
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/* DWARF 1 */
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.debug 0 : { *(.debug) }
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.line 0 : { *(.line) }
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/* GNU DWARF 1 extensions */
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.debug_srcinfo 0 : { *(.debug_srcinfo) }
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.debug_sfnames 0 : { *(.debug_sfnames) }
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/* DWARF 1.1 and DWARF 2 */
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.debug_aranges 0 : { *(.debug_aranges) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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/* DWARF 2 */
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.debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_line 0 : { *(.debug_line) }
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.debug_frame 0 : { *(.debug_frame) }
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.debug_str 0 : { *(.debug_str) }
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.debug_loc 0 : { *(.debug_loc) }
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.debug_macinfo 0 : { *(.debug_macinfo) }
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/* SGI/MIPS DWARF 2 extensions */
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.debug_weaknames 0 : { *(.debug_weaknames) }
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.debug_funcnames 0 : { *(.debug_funcnames) }
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.debug_typenames 0 : { *(.debug_typenames) }
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.debug_varnames 0 : { *(.debug_varnames) }
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/* In a multi-core environment, each core is given its own stack space
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equal to __stack_size. */
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PROVIDE (__stack = 0x1fff0);
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PROVIDE (__stack_size = 0x800);
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.stack (DEFINED(__stack) ? __stack : 0x007ffff0) :
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{
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__stack = .;
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*(.stack)
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LONG(0xdeaddead)
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}
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/DISCARD/ : { *(.note.GNU-stack) }
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}
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