diff options
Diffstat (limited to 'libgloss/m68hc11/sim-valid-m68hc12.ld')
| -rw-r--r-- | libgloss/m68hc11/sim-valid-m68hc12.ld | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/libgloss/m68hc11/sim-valid-m68hc12.ld b/libgloss/m68hc11/sim-valid-m68hc12.ld new file mode 100644 index 000000000..6b15ed2e5 --- /dev/null +++ b/libgloss/m68hc11/sim-valid-m68hc12.ld @@ -0,0 +1,311 @@ +/* Linker script for 68HC12 executable (PROM). */ +ENTRY(_start) +OUTPUT_FORMAT("elf32-m68hc12", "elf32-m68hc12", "elf32-m68hc12") +OUTPUT_ARCH(m68hc12) + +GROUP(-lc -lbcc -lgcc) +SEARCH_DIR(.); +/* Fixed definition of the available memory banks. + See generic emulation script for a user defined configuration. */ + +/* The memory layout below is suitable for gcc validation. + It takes care of big programs allowing up to 48128 bytes + of text while allowing some programs that consume some + memory (comp-goto-1 requires the RAM to be set to 0x4400 + to avoid head<->stack collision in malloc/sbrk). */ +MEMORY +{ + page0 (rwx) : ORIGIN = 0x00, LENGTH = 256 + text (rx) : ORIGIN = 0x04400, LENGTH = 0x10000 - 0x4400 + data : ORIGIN = 0x01100, LENGTH = 0x2000 - 0x1100 +} +/* Setup the stack on the top of the data memory bank. */ +PROVIDE (_stack = 0x04400 - 1); +SECTIONS +{ + .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.text.*) + *(.rel.gnu.linkonce.t.*) + } + .rela.text : + { + *(.rela.text) + *(.rela.text.*) + *(.rela.gnu.linkonce.t.*) + } + .rel.data : + { + *(.rel.data) + *(.rel.data.*) + *(.rel.gnu.linkonce.d.*) + } + .rela.data : + { + *(.rela.data) + *(.rela.data.*) + *(.rela.gnu.linkonce.d.*) + } + .rel.rodata : + { + *(.rel.rodata) + *(.rel.rodata.*) + *(.rel.gnu.linkonce.r.*) + } + .rela.rodata : + { + *(.rela.rodata) + *(.rela.rodata.*) + *(.rela.gnu.linkonce.r.*) + } + .rel.sdata : + { + *(.rel.sdata) + *(.rel.sdata.*) + *(.rel.gnu.linkonce.s.*) + } + .rela.sdata : + { + *(.rela.sdata) + *(.rela.sdata.*) + *(.rela.gnu.linkonce.s.*) + } + .rel.sbss : + { + *(.rel.sbss) + *(.rel.sbss.*) + *(.rel.gnu.linkonce.sb.*) + } + .rela.sbss : + { + *(.rela.sbss) + *(.rela.sbss.*) + *(.rel.gnu.linkonce.sb.*) + } + .rel.bss : + { + *(.rel.bss) + *(.rel.bss.*) + *(.rel.gnu.linkonce.b.*) + } + .rela.bss : + { + *(.rela.bss) + *(.rela.bss.*) + *(.rela.gnu.linkonce.b.*) + } + .rela.stext : { *(.rela.stest) } + .rela.etext : { *(.rela.etest) } + .rela.sdata : { *(.rela.sdata) } + .rela.edata : { *(.rela.edata) } + .rela.eit_v : { *(.rela.eit_v) } + .rela.ebss : { *(.rela.ebss) } + .rela.srodata : { *(.rela.srodata) } + .rela.erodata : { *(.rela.erodata) } + .rela.got : { *(.rela.got) } + .rela.ctors : { *(.rela.ctors) } + .rela.dtors : { *(.rela.dtors) } + .rela.init : { *(.rela.init) } + .rela.fini : { *(.rela.fini) } + .rela.plt : { *(.rela.plt) } + .rel.stext : { *(.rel.stest) } + .rel.etext : { *(.rel.etest) } + .rel.sdata : { *(.rel.sdata) } + .rel.edata : { *(.rel.edata) } + .rel.ebss : { *(.rel.ebss) } + .rel.eit_v : { *(.rel.eit_v) } + .rel.srodata : { *(.rel.srodata) } + .rel.erodata : { *(.rel.erodata) } + .rel.got : { *(.rel.got) } + .rel.ctors : { *(.rel.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rel.init : { *(.rel.init) } + .rel.fini : { *(.rel.fini) } + .rel.plt : { *(.rel.plt) } + /* Concatenate .page0 sections. Put them in the page0 memory bank + unless we are creating a relocatable file. */ + .page0 : + { + *(.page0) + } > page0 + + /* Start of text section. */ + .stext : + { + *(.stext) + } > text + .init : + { + *(.init) + } =0 + .text : + { + /* Put startup code at beginning so that _start keeps same address. */ + /* Startup code. */ + *(.install0) /* Section should setup the stack pointer. */ + *(.install1) /* Place holder for applications. */ + *(.install2) /* Optional installation of data sections in RAM. */ + *(.install3) /* Place holder for applications. */ + *(.install4) /* Section that calls the main. */ + *(.init) + *(.text) + *(.text.*) + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + *(.gnu.linkonce.t.*) + /* Finish code. */ + *(.fini0) /* Beginning of finish code (_exit symbol). */ + *(.fini1) /* Place holder for applications. */ + *(.fini2) /* C++ destructors. */ + *(.fini3) /* Place holder for applications. */ + *(.fini4) /* Runtime exit. */ + _etext = .; + PROVIDE (etext = .); + } > text + .eh_frame : + { + *(.eh_frame) + } > text + .rodata : + { + *(.rodata) + *(.rodata.*) + *(.gnu.linkonce.r*) + } > text + .rodata1 : + { + *(.rodata1) + } > text + /* Constructor and destructor tables are in ROM. */ + .ctors : + { + PROVIDE (__CTOR_LIST__ = .); + *(.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)) */ + PROVIDE(__CTOR_END__ = .); + } > text + .dtors : + { + PROVIDE(__DTOR_LIST__ = .); + *(.dtors) + /* + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) */ + PROVIDE(__DTOR_END__ = .); + } > text + /* Start of the data section image in ROM. */ + __data_image = .; + PROVIDE (__data_image = .); + /* All read-only sections that normally go in PROM must be above. + We construct the DATA image section in PROM at end of all these + read-only sections. The data image must be copied at init time. + Refer to GNU ld, Section 3.6.8.2 Output Section LMA. */ + .data : AT (__data_image) + { + __data_section_start = .; + PROVIDE (__data_section_start = .); + *(.sdata) + *(.data) + *(.data.*) + *(.data1) + *(.gnu.linkonce.d.*) + CONSTRUCTORS + _edata = .; + PROVIDE (edata = .); + } > data + __data_section_size = SIZEOF(.data); + PROVIDE (__data_section_size = SIZEOF(.data)); + __data_image_end = __data_image + __data_section_size; +/* SCz: this does not work yet... This is supposed to force the loading + of _map_data.o (from libgcc.a) when the .data section is not empty. + By doing so, this should bring the code that copies the .data section + from ROM to RAM at init time. + ___pre_comp_data_size = SIZEOF(.data); + __install_data_sections = ___pre_comp_data_size > 0 ? + __map_data_sections : 0; +*/ + /* .install : + { + . = _data_image_end; + } > text */ + /* Relocation for some bss and data sections. */ + .bss : + { + __bss_start = .; + *(.softregs) + *(.sbss) + *(.scommon) + *(.dynbss) + *(.bss) + *(.bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + PROVIDE (_end = .); + } > data + __bss_size = SIZEOF(.bss); + PROVIDE (__bss_size = SIZEOF(.bss)); + /* If the 'vectors_addr' symbol is defined, it indicates the start address + of interrupt vectors. This depends on the 68HC11 operating mode: + Addr + Single chip 0xffc0 + Extended mode 0xffc0 + Bootstrap 0x00c0 + Test 0xbfc0 + In general, the vectors address is 0xffc0. This can be overriden + with the '-defsym vectors_addr=0xbfc0' ld option. + Note: for the bootstrap mode, the interrupt vectors are at 0xbfc0 but + they are redirected to 0x00c0 by the internal PROM. Application's vectors + must also consist of jump instructions (see Motorola's manual). */ + PROVIDE (_vectors_addr = DEFINED (vectors_addr) ? vectors_addr : 0xffc0); + .vectors DEFINED (vectors_addr) ? vectors_addr : 0xffc0 : + { + *(.vectors) + } + /* 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. + Treatment of DWARF debug section must be at end of the linker + script to avoid problems when there are undefined symbols. It's necessary + to avoid that the DWARF section is relocated before such undefined + symbols are found. */ + /* 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_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } +} |