diff --git a/libgloss/ChangeLog b/libgloss/ChangeLog index 4a276b34a..c733c326f 100644 --- a/libgloss/ChangeLog +++ b/libgloss/ChangeLog @@ -1,3 +1,10 @@ +2009-06-17 Michael Eager + + * rs6000/Makefile.in: Add xilinx support. + * rs6000/xil-crt0.s: New crt0 file for powerpc-xilinx-eabi. + * rs6000/xilinx.ld: New file. + * rs6000/xilinx440.ld: Ditto. + 2009-05-13 Ken Werner * configure.in: Introduce config_libnosys flag which defaults to true. diff --git a/libgloss/rs6000/Makefile.in b/libgloss/rs6000/Makefile.in index 3c41ef0b0..6945cc824 100644 --- a/libgloss/rs6000/Makefile.in +++ b/libgloss/rs6000/Makefile.in @@ -121,6 +121,14 @@ MBX_OBJS = open.o close.o lseek.o sbrk.o read.o write.o mbx-exit.o mbx-inbyte.o MBX_TEST = mbx-test MBX_INSTALL = install-mbx +XIL_SCRIPTS = xilinx.ld xilinx440.ld +XIL_SPECS = +XIL_CRT0 = xil-crt0.o xil-pgcrt0.o xil-sim-crt0.o xil-sim-pgcrt0.o +XIL_BSP = libxil.a +XIL_OBJS = open.o close.o lseek.o sbrk.o read.o write.o print.o xil-exit.o +XIL_TEST = xil-test +XIL_INSTALL = install-xil + # Host specific makefile fragment comes in here. @host_makefile_frag@ @@ -135,7 +143,8 @@ all: \ ${LINUX_CRT0} ${LINUX_BSP} \ ${YELLOWKNIFE_CRT0} ${YELLOWKNIFE_BSP} \ ${ADS_CRT0} ${ADS_BSP} \ - ${MBX_CRT0} ${MBX_BSP} + ${MBX_CRT0} ${MBX_BSP} \ + ${XIL_CRT0} ${XIL_BSP} # # here's where we build the board support packages for each target @@ -169,11 +178,15 @@ ${MBX_BSP}: ${OBJS} ${MBX_OBJS} ${AR} ${ARFLAGS} $@ ${MBX_OBJS} ${OBJS} ${RANLIB} $@ +${XIL_BSP}: ${OBJS} ${XIL_OBJS} + ${AR} ${ARFLAGS} $@ ${XIL_OBJS} ${OBJS} + ${RANLIB} $@ + # # here's where we build the test programs for each target # .PHONY: test -test: ${SIM_TEST} ${MVME_TEST} ${YELLOWKNIFE_TEST} ${ADS_TEST} ${MBX_TEST} +test: ${SIM_TEST} ${MVME_TEST} ${YELLOWKNIFE_TEST} ${ADS_TEST} ${MBX_TEST} ${XIL_TEST} sim-test: sim-test.x sim-test.dis @@ -263,6 +276,19 @@ mbx-test.dis: mbx-test.x mbx-test.srec: mbx-test.x ${OBJCOPY} -O srec mbx-test.x mbx-test.srec +xil-test: xil-test.x xil-test.dis xil-test.srec + +xil-test.x: test.o ${XIL_CRT0} ${XIL_BSP} + ${CC} ${LDFLAGS_FOR_TARGET} -L${objdir} \ + -T${srcdir}/xilinx.ld ${XIL_CRT0} test.o \ + -o xil-test.x $(LIBS_FOR_TARGET) ${XIL_BSP} -lc ${XIL_BSP} + +xil-test.dis: xil-test.x + ${OBJDUMP} -d xil-test.x > xil-test.dis + +xil-test.srec: xil-test.x + ${OBJCOPY} -O srec xil-test.x xil-test.srec + # # # @@ -286,6 +312,20 @@ mbx-inbyte.o: mbx-inbyte.c mbx-outbyte.o: mbx-outbyte.c mbx-print.o: mbx-print.c +xil-exit.o: xil-exit.c + +xil-crt0.o: xil-crt0.S + ${CC} -c -o $@ $< + +xil-pgcrt0.o: xil-crt0.S + ${CC} -c -DPROFILING -o $@ $< + +xil-sim-crt0.o: xil-crt0.S + ${CC} -c -DSIMULATOR -o $@ $< + +xil-sim-pgcrt0.o: xil-crt0.S + ${CC} -c -DSIMULATOR -DPROFILING -o $@ $< + sol-cfuncs.o: sol-cfuncs.c sol-syscall.o: sol-syscall.S @@ -314,7 +354,7 @@ distclean maintainer-clean realclean: clean rm -f Makefile config.status *~ .PHONY: install info install-info clean-info -install: ${SIM_INSTALL} ${MVME_INSTALL} ${SOLARIS_INSTALL} ${LINUX_INSTALL} ${YELLOWKNIFE_INSTALL} ${ADS_INSTALL} ${MBX_INSTALL} +install: ${SIM_INSTALL} ${MVME_INSTALL} ${SOLARIS_INSTALL} ${LINUX_INSTALL} ${YELLOWKNIFE_INSTALL} ${ADS_INSTALL} ${MBX_INSTALL} ${XIL_INSTALL} install-sim: set -e; for x in ${SIM_CRT0} ${SIM_BSP} ${SIM_SCRIPTS}; do ${INSTALL_DATA} $$x $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/$$x; done @@ -340,6 +380,10 @@ install-mbx: set -e; for x in ${MBX_CRT0} ${MBX_BSP}; do ${INSTALL_DATA} $$x $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/$$x; done set -e; for x in ${MBX_SCRIPTS} ${MBX_SPECS}; do ${INSTALL_DATA} $(srcdir)/$$x $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/$$x; done +install-xil: + set -e; for x in ${XIL_CRT0} ${XIL_BSP}; do ${INSTALL_DATA} $$x $(DESTDIR)${tooldir}/lib/$$x; done + set -e; for x in ${XIL_SCRIPTS} ${XIL_SPECS}; do ${INSTALL_DATA} $(srcdir)/$$x $(DESTDIR)${tooldir}/lib/$$x; done + doc: info: install-info: diff --git a/libgloss/rs6000/xil-crt0.S b/libgloss/rs6000/xil-crt0.S new file mode 100644 index 000000000..e003ed37e --- /dev/null +++ b/libgloss/rs6000/xil-crt0.S @@ -0,0 +1,192 @@ +/*----------------------------------------------------------------------------- +// +// Copyright (c) 2004, 2009 Xilinx, Inc. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// 1. Redistributions source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// 2. 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. +// +// 3. Neither the name of Xilinx nor the names of its contributors may be +// used to endorse or promote products derived from this software without +// specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER 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 THE COPYRIGHT +// HOLDER OR CONTRIBUTORS 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. +// +//---------------------------------------------------------------------------*/ + + .file "xil-crt0.S" + .section ".got2","aw" + .align 2 + +.LCTOC1 = . + 32768 + +.Lsbss_start = .-.LCTOC1 + .long __sbss_start + +.Lsbss_end = .-.LCTOC1 + .long __sbss_end + +.Lbss_start = .-.LCTOC1 + .long __bss_start + +.Lbss_end = .-.LCTOC1 + .long __bss_end + +.Lstack = .-.LCTOC1 + .long __stack + +.Lsda = .-.LCTOC1 + .long _SDA_BASE_ /* address of the first small data area */ + +.Lsda2 = .-.LCTOC1 + .long _SDA2_BASE_ /* address of the second small data area */ + + + .text + .globl _start +_start: + bl __cpu_init /* Initialize the CPU first (BSP provides this) */ + + lis 5,.LCTOC1@h + ori 5,5,.LCTOC1@l + + lwz 13,.Lsda(5) /* load r13 with _SDA_BASE_ address */ + lwz 2,.Lsda2(5) /* load r2 with _SDA2_BASE_ address */ + +#ifndef SIMULATOR + /* clear sbss */ + lwz 6,.Lsbss_start(5) /* calculate beginning of the SBSS */ + lwz 7,.Lsbss_end(5) /* calculate end of the SBSS */ + + cmplw 1,6,7 + bc 4,4,.Lenclsbss /* If no SBSS, no clearing required */ + + li 0,0 /* zero to clear memory */ + subf 8,6,7 /* number of bytes to zero */ + srwi. 9,8,2 /* number of words to zero */ + beq .Lstbyteloopsbss /* Check if the number of bytes was less than 4 */ + mtctr 9 + addi 6,6,-4 /* adjust so we can use stwu */ +.Lloopsbss: + stwu 0,4(6) /* zero sbss */ + bdnz .Lloopsbss + +.Lstbyteloopsbss: + andi. 9,8,3 /* Calculate how many trailing bytes we have */ + beq 0,.Lenclsbss + mtctr 9 + addi 6,6,-1 /* adjust, so we can use stbu */ + +.Lbyteloopsbss: + stbu 0,1(6) + bdnz .Lbyteloopsbss + +.Lenclsbss: +.Lstclbss: + + /* clear bss */ + lwz 6,.Lbss_start(5) /* calculate beginning of the BSS */ + lwz 7,.Lbss_end(5) /* calculate end of the BSS */ + + cmplw 1,6,7 + bc 4,4,.Lenclbss /* If no BSS, no clearing required */ + + li 0,0 /* zero to clear memory */ + subf 8,6,7 /* number of bytes to zero */ + srwi. 9,8,2 /* number of words to zero */ + beq .Lstbyteloopbss /* Check if the number of bytes was less than 4 */ + mtctr 9 + addi 6,6,-4 /* adjust so we can use stwu */ +.Lloopbss: + stwu 0,4(6) /* zero bss */ + bdnz .Lloopbss + +.Lstbyteloopbss: + andi. 9,8,3 /* Calculate how many trailing bytes we have */ + beq 0,.Lenclbss /* If zero, we are done */ + mtctr 9 + addi 6,6,-1 /* adjust, so we can use stbu */ + +.Lbyteloopbss: + stbu 0,1(6) + bdnz .Lbyteloopbss + +.Lenclbss: +#endif /* SIMULATOR */ + + /* set stack pointer */ + lwz 1,.Lstack(5) /* stack address */ + + /* set up initial stack frame */ + addi 1,1,-8 /* location of back chain */ + lis 0,0 + stw 0,0(1) /* set end of back chain */ + + /* initialize base timer to zero */ + mtspr 0x11c,0 + mtspr 0x11d,0 + +#ifdef HAVE_XFPU + /* On the Xilinx PPC405 and PPC440, the MSR + must be explicitly set to mark the prescence + of an FPU */ + mfpvr 0 + rlwinm 0,0,0,12,15 + cmpwi 7,0,8192 + mfmsr 0 + ori 0,0,8192 + beq- 7,fpu_init_done +do_405: + oris 0,0,512 +fpu_init_done: + mtmsr 0 +#endif + +#ifdef PROFILING + /* Setup profiling stuff */ + bl _profile_init +#endif /* PROFILING */ + + /* Call __init */ + bl __init + + /* Let her rip */ + bl main + + /* Invoke the language cleanup functions */ + bl __fini + +#ifdef PROFILING + /* Cleanup profiling stuff */ + bl _profile_clean +#endif /* PROFILING */ + + /* Call __init */ + /* All done */ + bl exit + +/* Trap has been removed for both simulation and hardware */ + .globl _exit +_exit: + b _exit + +.Lstart: + .size _start,.Lstart-_start + diff --git a/libgloss/rs6000/xilinx.ld b/libgloss/rs6000/xilinx.ld new file mode 100644 index 000000000..75b2a12b6 --- /dev/null +++ b/libgloss/rs6000/xilinx.ld @@ -0,0 +1,307 @@ +/* Default linker script, for normal executables + +Copyright (c) 2008, 2009 Xilinx, Inc. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + +1. Redistributions source code must retain the above copyright notice, +this list of conditions and the following disclaimer. + +2. 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. + +3. Neither the name of Xilinx nor the names of its contributors may be +used to endorse or promote products derived from this software without +specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER 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 THE COPYRIGHT +HOLDER OR CONTRIBUTORS 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. +*/ + +OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", + "elf32-powerpc") +OUTPUT_ARCH(powerpc:common) +ENTRY(_boot) +_START_ADDR = DEFINED(_START_ADDR) ? _START_ADDR : 0xFFFF0000; +_STACK_SIZE = DEFINED(_STACK_SIZE) ? _STACK_SIZE : 4k; +_HEAP_SIZE = DEFINED(_HEAP_SIZE) ? _HEAP_SIZE : 4k; +STARTUP(boot.o) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +PROVIDE (__stack = 0); PROVIDE (___stack = 0); +SECTIONS +{ + + . = _START_ADDR; + .vectors BLOCK (64k): + { + *(.vectors) + } + /* Read-only sections, merged into text segment: */ + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + .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.got1 : { *(.rela.got1) } + .rela.got2 : { *(.rela.got2) } + .rela.ctors : { *(.rela.ctors) } + .rela.dtors : { *(.rela.dtors) } + .rela.init : { *(.rela.init) } + .rela.fini : { *(.rela.fini) } + .rela.bss : { *(.rela.bss) } + .rela.plt : { *(.rela.plt) } + .rela.sdata : { *(.rela.sdata) } + .rela.sbss : { *(.rela.sbss) } + .rela.sdata2 : { *(.rela.sdata2) } + .rela.sbss2 : { *(.rela.sbss2) } + .text : + { + *(.text) + *(.text.*) + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + *(.gnu.linkonce.t.*) + } =0 + .init : { KEEP (*(.init)) } =0 + .fini : { KEEP (*(.fini)) } =0 + .rodata : + { + *(.rodata) + *(.rodata.*) + *(.gnu.linkonce.r.*) + } + .rodata1 : { *(.rodata1) } + _etext = .; + PROVIDE (etext = .); + PROVIDE (__etext = .); + .sdata2 : { *(.sdata2) *(.sdata2.*) *(.gnu.linkonce.s2.*)} + __SDATA2_START__ = ADDR(.sdata2); + __SDATA2_END__ = ADDR(.sdata2) + SIZEOF(.sdata2); + .sbss2 : { *(.sbss2) *(.gnu.linkonce.sb2.*)} + __SBSS2_START__ = ADDR(.sbss2); + __SBSS2_END__ = ADDR(.sbss2) + SIZEOF(.sbss2); + /* Adjust the address for the data segment. We want to adjust up to + the same address within the page on the next page up. It would + be more correct to do this: + . = ALIGN(0x08) + (ALIGN(8) & (0x08 - 1)); + The current expression does not correctly handle the case of a + text segment ending precisely at the end of a page; it causes the + data segment to skip a page. The above expression does not have + this problem, but it will currently (2/95) cause BFD to allocate + a single segment, combining both text and data, for this case. + This will prevent the text segment from being shared among + multiple executions of the program; I think that is more + important than losing a page of the virtual address space (note + that no actual memory is lost; the page which is skipped can not + be referenced). */ +/* . = ALIGN(8) + 0x08;*/ + .data : + { + *(.data) + *(.data.*) + *(.gnu.linkonce.d*) + CONSTRUCTORS + } + .data1 : { *(.data1) } + .got1 : { *(.got1) } + .dynamic : { *(.dynamic) } + /* Put .ctors and .dtors next to the .got2 section, so that the pointers + get relocated with -mrelocatable. Also put in the .fixup pointers. + The current compiler no longer needs this, but keep it around for 2.7.2 */ + PROVIDE (_GOT2_START_ = .); + PROVIDE (__GOT2_START_ = .); + .got2 : { *(.got2) } + PROVIDE (__CTOR_LIST__ = .); + PROVIDE (___CTOR_LIST__ = .); + .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)) + /* 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__ = .); + PROVIDE (___CTOR_END__ = .); + PROVIDE (__DTOR_LIST__ = .); + PROVIDE (___DTOR_LIST__ = .); + .dtors : + { + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + } + PROVIDE (__DTOR_END__ = .); + PROVIDE (___DTOR_END__ = .); + PROVIDE (_FIXUP_START_ = .); + PROVIDE (__FIXUP_START_ = .); + .fixup : { *(.fixup) } + PROVIDE (_FIXUP_END_ = .); + PROVIDE (__FIXUP_END_ = .); + PROVIDE (_GOT2_END_ = .); + PROVIDE (__GOT2_END_ = .); + PROVIDE (_GOT_START_ = .); + PROVIDE (__GOT_START_ = .); + .got : { *(.got) } + .got.plt : { *(.got.plt) } + PROVIDE (_GOT_END_ = .); + PROVIDE (__GOT_END_ = .); + /* Added by Sathya to handle C++ exceptions */ + .eh_frame : { + *(.eh_frame) + } + .jcr : { + *(.jcr) + } + .gcc_except_table : { + *(.gcc_except_table) + } + /* 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 : { *(.sdata) *(.sdata.*) *(.gnu.linkonce.s.*)} + __SDATA_START__ = ADDR(.sdata); + __SDATA_END__ = ADDR(.sdata) + SIZEOF(.sdata); + _edata = .; + PROVIDE (edata = .); + PROVIDE (__edata = .); + .sbss : + { + __sbss_start = .; + ___sbss_start = .; + *(.sbss) + *(.sbss.*) + *(.gnu.linkonce.sb.*) + *(.scommon) + *(.dynsbss) + __sbss_end = .; + ___sbss_end = .; + } + .plt : { *(.plt) } + .bss : + { + __bss_start = .; + ___bss_start = .; + *(.dynbss) + *(.bss) + *(.bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + . = ALIGN(4); + __bss_end = .; + } + + .stack : + { + _stack_end = .; + . = . + _STACK_SIZE; + . = ALIGN(16); + __stack = .; + } + + .heap : + { + _heap_start = .; + . = . + _HEAP_SIZE; + . = ALIGN(16); + _heap_end = .; + } + + .tdata : { + *(.tdata) + *(.tdata.*) + *(.gnu.linkonce.td.*) + } + .tbss : { + *(.tbss) + *(.gnu.linkonce.tb.*) + } + /* Check to see if boot0 is going to be within 24bits from boot */ + /* If so, then leave the location counter as is. */ + /* If not, then make location counter to be 0x20 locations above boot location */ + /* This assumes that a BRAM is present for boot and hence 0x20 locations above it are valid */ + /* This fixes CR 183394 */ + __boot0_flag__ = ((. > 0x00ffffff) && (. < 0xff000000)) ? 1 : 0; + . = (__boot0_flag__) ? 0xffffffdc : .; + .boot0 : { *(.boot0)} + _end = . ; + end = .; + __end = .; + .boot 0xFFFFFFFC : { *(.boot) } + /* These are needed for ELF backends which have not yet been + converted to the new style linker. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + /* 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) } + .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) } + /* 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) } + /* These must appear regardless of . */ +} diff --git a/libgloss/rs6000/xilinx440.ld b/libgloss/rs6000/xilinx440.ld new file mode 100644 index 000000000..2c7c5aba4 --- /dev/null +++ b/libgloss/rs6000/xilinx440.ld @@ -0,0 +1,302 @@ +/* Default linker script for PowerPC 440, for normal executables + +Copyright (c) 2008, 2009 Xilinx, Inc. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + +1. Redistributions source code must retain the above copyright notice, +this list of conditions and the following disclaimer. + +2. 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. + +3. Neither the name of Xilinx nor the names of its contributors may be +used to endorse or promote products derived from this software without +specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER 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 THE COPYRIGHT +HOLDER OR CONTRIBUTORS 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. +*/ + +OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", + "elf32-powerpc") +OUTPUT_ARCH(powerpc:common) +ENTRY(_boot) +_START_ADDR = DEFINED(_START_ADDR) ? _START_ADDR : 0xFFFF0000; +_STACK_SIZE = DEFINED(_STACK_SIZE) ? _STACK_SIZE : 4k; +_HEAP_SIZE = DEFINED(_HEAP_SIZE) ? _HEAP_SIZE : 4k; +STARTUP(boot.o) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +PROVIDE (__stack = 0); PROVIDE (___stack = 0); +SECTIONS +{ + + . = _START_ADDR; + + /* Read-only sections, merged into text segment: */ + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + .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.got1 : { *(.rela.got1) } + .rela.got2 : { *(.rela.got2) } + .rela.ctors : { *(.rela.ctors) } + .rela.dtors : { *(.rela.dtors) } + .rela.init : { *(.rela.init) } + .rela.fini : { *(.rela.fini) } + .rela.bss : { *(.rela.bss) } + .rela.plt : { *(.rela.plt) } + .rela.sdata : { *(.rela.sdata) } + .rela.sbss : { *(.rela.sbss) } + .rela.sdata2 : { *(.rela.sdata2) } + .rela.sbss2 : { *(.rela.sbss2) } + .text : + { + *(.text) + *(.text.*) + *(.vectors) + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + *(.gnu.linkonce.t.*) + } =0 + .init : { KEEP (*(.init)) } =0 + .fini : { KEEP (*(.fini)) } =0 + .rodata : + { + *(.rodata) + *(.rodata.*) + *(.gnu.linkonce.r.*) + } + .rodata1 : { *(.rodata1) } + _etext = .; + PROVIDE (etext = .); + PROVIDE (__etext = .); + .sdata2 : { *(.sdata2) *(.sdata2.*) *(.gnu.linkonce.s2.*)} + __SDATA2_START__ = ADDR(.sdata2); + __SDATA2_END__ = ADDR(.sdata2) + SIZEOF(.sdata2); + .sbss2 : { *(.sbss2) *(.gnu.linkonce.sb2.*)} + __SBSS2_START__ = ADDR(.sbss2); + __SBSS2_END__ = ADDR(.sbss2) + SIZEOF(.sbss2); + /* Adjust the address for the data segment. We want to adjust up to + the same address within the page on the next page up. It would + be more correct to do this: + . = ALIGN(0x08) + (ALIGN(8) & (0x08 - 1)); + The current expression does not correctly handle the case of a + text segment ending precisely at the end of a page; it causes the + data segment to skip a page. The above expression does not have + this problem, but it will currently (2/95) cause BFD to allocate + a single segment, combining both text and data, for this case. + This will prevent the text segment from being shared among + multiple executions of the program; I think that is more + important than losing a page of the virtual address space (note + that no actual memory is lost; the page which is skipped can not + be referenced). */ +/* . = ALIGN(8) + 0x08;*/ + .data : + { + *(.data) + *(.data.*) + *(.gnu.linkonce.d*) + CONSTRUCTORS + } + .data1 : { *(.data1) } + .got1 : { *(.got1) } + .dynamic : { *(.dynamic) } + /* Put .ctors and .dtors next to the .got2 section, so that the pointers + get relocated with -mrelocatable. Also put in the .fixup pointers. + The current compiler no longer needs this, but keep it around for 2.7.2 */ + PROVIDE (_GOT2_START_ = .); + PROVIDE (__GOT2_START_ = .); + .got2 : { *(.got2) } + PROVIDE (__CTOR_LIST__ = .); + PROVIDE (___CTOR_LIST__ = .); + .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)) + /* 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__ = .); + PROVIDE (___CTOR_END__ = .); + PROVIDE (__DTOR_LIST__ = .); + PROVIDE (___DTOR_LIST__ = .); + .dtors : + { + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + } + PROVIDE (__DTOR_END__ = .); + PROVIDE (___DTOR_END__ = .); + PROVIDE (_FIXUP_START_ = .); + PROVIDE (__FIXUP_START_ = .); + .fixup : { *(.fixup) } + PROVIDE (_FIXUP_END_ = .); + PROVIDE (__FIXUP_END_ = .); + PROVIDE (_GOT2_END_ = .); + PROVIDE (__GOT2_END_ = .); + PROVIDE (_GOT_START_ = .); + PROVIDE (__GOT_START_ = .); + .got : { *(.got) } + .got.plt : { *(.got.plt) } + PROVIDE (_GOT_END_ = .); + PROVIDE (__GOT_END_ = .); + /* Added by Sathya to handle C++ exceptions */ + .eh_frame : { + *(.eh_frame) + } + .jcr : { + *(.jcr) + } + .gcc_except_table : { + *(.gcc_except_table) + } + /* 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 : { *(.sdata) *(.sdata.*) *(.gnu.linkonce.s.*)} + __SDATA_START__ = ADDR(.sdata); + __SDATA_END__ = ADDR(.sdata) + SIZEOF(.sdata); + _edata = .; + PROVIDE (edata = .); + PROVIDE (__edata = .); + .sbss : + { + __sbss_start = .; + ___sbss_start = .; + *(.sbss) + *(.sbss.*) + *(.gnu.linkonce.sb.*) + *(.scommon) + *(.dynsbss) + __sbss_end = .; + ___sbss_end = .; + } + .plt : { *(.plt) } + .bss : + { + __bss_start = .; + ___bss_start = .; + *(.dynbss) + *(.bss) + *(.bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + . = ALIGN(4); + __bss_end = .; + } + + .stack : + { + _stack_end = .; + . = . + _STACK_SIZE; + . = ALIGN(16); + __stack = .; + } + + .heap : + { + _heap_start = .; + . = . + _HEAP_SIZE; + . = ALIGN(16); + _heap_end = .; + } + + .tdata : { + *(.tdata) + *(.tdata.*) + *(.gnu.linkonce.td.*) + } + .tbss : { + *(.tbss) + *(.gnu.linkonce.tb.*) + } + + _end = . ; + end = .; + __end = .; + + .boot0 0xFFFFFF00 : { *(.boot0)} + + .boot 0xFFFFFFFC : { *(.boot) } + + /* These are needed for ELF backends which have not yet been + converted to the new style linker. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + /* 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) } + .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) } + /* 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) } + /* These must appear regardless of . */ +}