/* Copyright (c) 2005,2008,2009,2011 Red Hat Incorporated. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. The name of Red Hat Incorporated may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* Default linker script, for normal executables */ OUTPUT_ARCH(rl78) ENTRY(_start) /* Do we need any of these for elf? __DYNAMIC = 0; */ /* This is for an RL78/G13, 64k flash, 4k ram */ MEMORY { VEC (r) : ORIGIN = 0x00000, LENGTH = 0x00002 IVEC (r) : ORIGIN = 0x00004, LENGTH = 0x0007c OPT (r) : ORIGIN = 0x000c0, LENGTH = 0x00004 ROM (r) : ORIGIN = 0x000d8, LENGTH = 0x0ff28 /* The G10 variant needs to use RAM for virtual registers. */ RAM (w) : ORIGIN = 0xfef00, LENGTH = 0x00f20 STACK (w) : ORIGIN = 0xffe20, LENGTH = 0x00002 SADDR (w) : ORIGIN = 0xffe20, LENGTH = 0x000a0 } SECTIONS { .vec : { *(.vec) } > VEC .ivec : { *(.ivec) } > IVEC .opt : { *(.opt) } > OPT /* CubeSuite always starts at 0xd8. */ .csstart : { KEEP (*(.csstart)) } > ROM /* For code that must be in the first 64k, or could fill unused space below .rodata. */ .lowtext : { *(.plt) *(.lowtext) } > ROM .data : { . = ALIGN(2); PROVIDE (__datastart = .); KEEP (*(.jcr)) *(.data.rel.ro.local) *(.data.rel.ro*) *(.dynamic) *(.data D .data.* .gnu.linkonce.d.*) KEEP (*(.gnu.linkonce.d.*personality*)) SORT(CONSTRUCTORS) *(.data1) *(.got.plt) *(.got) /* 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. */ . = ALIGN(2); *(.sdata .sdata.* .gnu.linkonce.s.* D_2 D_1) . = ALIGN(2); _edata = .; PROVIDE (edata = .); PROVIDE (__dataend = .); } > RAM AT> ROM /* Note that crt0 assumes this is a multiple of two; all the start/stop symbols are also assumed word-aligned. */ PROVIDE(__romdatastart = LOADADDR(.data)); PROVIDE (__romdatacopysize = SIZEOF(.data)); .bss : { . = ALIGN(2); PROVIDE (__bssstart = .); *(.dynbss) *(.sbss .sbss.*) *(.bss B B_2 B_1 .bss.* .gnu.linkonce.b.*) . = ALIGN(2); *(COMMON) . = ALIGN(2); PROVIDE (__bssend = .); _end = .; PROVIDE (end = .); } > RAM PROVIDE (__bsssize = SIZEOF(.bss)); /* The __stack_size value of 0x100 is just a guess, but since it is PROVIDEd the user can override it on the command line. It has to be set here, rather than inside the .stack section, as symbols defined inside sections are only evaluated during the final phase of the link, long after the ASSERT is checked. An ASSERT referencing a PROVIDED but not yet evaluated symbol will automatically fail. FIXME: It would be nice if this value could be automatically set via gcc's -fstack-usage command line option somehow. */ PROVIDE (__stack_size = 0x100); .stack (ORIGIN (STACK)) : { PROVIDE (__stack = .); *(.stack) /* Linker section checking ignores empty sections like this one so we have to have our own test here. */ ASSERT ((__stack > (_end + __stack_size)), "Error: Too much data - no room left for the stack"); } .saddr : { . = ALIGN(2); PROVIDE (__saddrstart = .); *(.saddr) . = ALIGN(2); } >SADDR AT>ROM PROVIDE(__romsaddrstart = LOADADDR(.saddr)); PROVIDE (__romsaddrcopysize = SIZEOF(.saddr)); .rodata (MAX(__romdatastart + __romdatacopysize, 0x2000)) : { . = ALIGN(2); *(.plt) *(.rodata C C_2 C_1 .rodata.* .gnu.linkonce.r.*) *(.rodata1) *(.eh_frame_hdr) KEEP (*(.eh_frame)) KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) PROVIDE (__preinit_array_start = .); KEEP (*(.preinit_array)) PROVIDE (__preinit_array_end = .); PROVIDE (__init_array_start = .); KEEP (*(SORT(.init_array.*))) KEEP (*(.init_array)) PROVIDE (__init_array_end = .); PROVIDE (__fini_array_start = .); KEEP (*(.fini_array)) KEEP (*(SORT(.fini_array.*))) PROVIDE (__fini_array_end = .); LONG(0); /* Sentinel. */ /* 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)) KEEP (*crtbegin*.o(.dtors)) KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors)) KEEP (*(SORT(.dtors.*))) KEEP (*(.dtors)) } > ROM .frodata : { *(.frodata) } > ROM .text : { PROVIDE (_start = .); *(.text P .stub .text.* .gnu.linkonce.t.*) KEEP (*(.text.*personality*)) /* .gnu.warning sections are handled specially by elf32.em. */ *(.gnu.warning) *(.interp .hash .dynsym .dynstr .gnu.version*) PROVIDE (__etext = .); PROVIDE (_etext = .); PROVIDE (etext = .); . = ALIGN(2); KEEP (*(.init)) KEEP (*(.fini)) } > ROM /* The rest are all not normally part of the runtime image. */ /* 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) } /DISCARD/ : { *(.note.GNU-stack) } }