From 99648958668d3a33ee57974479b36201fe303f34 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Fri, 20 Apr 2018 10:35:35 +0200 Subject: bsps: Move startup files to bsps Adjust build support files to new directory layout. This patch is a part of the BSP source reorganization. Update #3285. --- bsps/powerpc/virtex5/start/linkcmds | 285 ++++++++++++++++++++++++++++++++++++ 1 file changed, 285 insertions(+) create mode 100644 bsps/powerpc/virtex5/start/linkcmds (limited to 'bsps/powerpc/virtex5/start/linkcmds') diff --git a/bsps/powerpc/virtex5/start/linkcmds b/bsps/powerpc/virtex5/start/linkcmds new file mode 100644 index 0000000000..9bd7c2e67f --- /dev/null +++ b/bsps/powerpc/virtex5/start/linkcmds @@ -0,0 +1,285 @@ +/* + * This file contains directives for the GNU linker which are specific to the + * Virtex 5 PPC 440. No assumptions are made on the firmware in the FPGA. + * This file is intended to be used together with start.S to generate + * downloadable code. + */ + +OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc") +OUTPUT_ARCH(powerpc) + +ENTRY(download_entry) +EXTERN(download_entry) +EXTERN(__vectors) + +MsgAreaSize = DEFINED(MsgAreaSize) ? MsgAreaSize : 1M; +RamBase = DEFINED(RamBase) ? RamBase : 0x0; +RamSize = DEFINED(RamSize) ? RamSize : 2048M - MsgAreaSize; +IntrStackSize = DEFINED(IntrStackSize) ? IntrStackSize : 16K; +StackSize = DEFINED(StackSize) ? StackSize : 64K; +HeapSize = DEFINED(HeapSize) ? HeapSize : 0; /* 0=Use def */ + + +MEMORY +{ + VECTORS : ORIGIN = 0x00000000, LENGTH = 512 + RAM : ORIGIN = 0x00000200, LENGTH = 2048M - 512 +} + + +SECTIONS +{ + bsp_exc_vector_base = 0; + __exeentry = download_entry; + __exestart = bsp_exc_vector_base; + .vectors bsp_exc_vector_base : { *(.vectors) } > VECTORS + + /* Read-only sections, merged into text segment: */ + .interp : { *(.interp) } > RAM + .hash : { *(.hash) } > RAM + .dynsym : { *(.dynsym) } > RAM + .dynstr : { *(.dynstr) } > RAM + .gnu.version : { *(.gnu.version) } > RAM + .gnu.version_d : { *(.gnu.version_d) } > RAM + .gnu.version_r : { *(.gnu.version_r) } > RAM + .rela.text : { *(.rela.text) *(.rela.gnu.linkonce.t*) } > RAM + .rela.data : { *(.rela.data) *(.rela.gnu.linkonce.d*) } > RAM + .rela.rodata : { *(.rela.rodata*) *(.rela.gnu.linkonce.r*) } > RAM + .rela.got : { *(.rela.got) } > RAM + .rela.got1 : { *(.rela.got1) } > RAM + .rela.got2 : { *(.rela.got2) } > RAM + .rela.ctors : { *(.rela.ctors) } > RAM + .rela.dtors : { *(.rela.dtors) } > RAM + .rela.init : { *(.rela.init) } > RAM + .rela.fini : { *(.rela.fini) } > RAM + .rela.bss : { *(.rela.bss) } > RAM + .rela.plt : { *(.rela.plt) } > RAM + .rela.sdata : { *(.rela.sdata) } > RAM + .rela.sbss : { *(.rela.sbss) } > RAM + .rela.sdata2 : { *(.rela.sdata2) } > RAM + .rela.sbss2 : { *(.rela.sbss2) } > RAM + .rela.dyn : { *(.rela.dyn) } > RAM + + /* Initialization code */ + .init : { PROVIDE (_init = .); + *ecrti.o(.init) + KEEP(*(.init)) + *ecrtn.o(.init) + } > RAM + + .text : { *(.entry) + *(.text) + *(.text.*) + + /* Special FreeBSD sysctl sections */ + . = ALIGN (16); + __start_set_sysctl_set = .; + *(set_sysctl_*); + __stop_set_sysctl_set = ABSOLUTE(.); + *(set_domain_*); + *(set_pseudo_*); + + /* .gnu.warning sections are handled specially by elf32.em + */ + *(.gnu.warning) + *(.gnu.linkonce.t*) + } > RAM + + /* Finalization code */ + .fini : { PROVIDE (_fini = .); + *ecrti.o(.fini) + KEEP(*(.fini)) + *ecrtn.o(.fini) + } > RAM + + /* Miscellaneous read-only data */ + .rodata : { *(.rodata.* .gnu.linkonce.r*) KEEP (*(SORT(.rtemsroset.*))) } > RAM + .rodata1 : { *(.rodata1) } > RAM + + .tdata : { + _TLS_Data_begin = .; + *(.tdata .tdata.* .gnu.linkonce.td.*) + _TLS_Data_end = .; + } >RAM + + .tbss : { + _TLS_BSS_begin = .; + *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) + _TLS_BSS_end = .; + } >RAM + + _TLS_Data_size = _TLS_Data_end - _TLS_Data_begin; + _TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin; + _TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin; + _TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin; + _TLS_Size = _TLS_BSS_end - _TLS_Data_begin; + _TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss)); + + /* Initialised small data addressed as offsets from r2 */ + .sdata2 : { PROVIDE (_SDA2_BASE_ = 32768); *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } > RAM + + /* Zeroed small data addressed as offsets from r2 */ + .sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) + + /* Avoid empty sdata2/sbss2 area: __eabi would not set up + * r2 which may be important if run-time loading is used + */ + . += 1; + + PROVIDE (__SBSS2_END__ = .); + } > RAM + + /* Exception frame info */ + .eh_frame : { *(.eh_frame .eh_frame.*) } > RAM + .eh_frame_hdr : { *(.eh_frame_hdr) } > RAM + + /* Declares where the .text section ends */ + _etext = .; + PROVIDE (etext = .); + + /* Initialized R/W Data section goes in RAM */ + .data : { PROVIDE(__DATA_START__ = ABSOLUTE(.) ); + *(.data) + *(.data.*) + KEEP (*(SORT(.rtemsrwset.*))) + *(.gnu.linkonce.d*) + } > RAM + + .data1 : { *(.data1) } > RAM + + PROVIDE (__EXCEPT_START__ = .); + .gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) } > RAM + PROVIDE (__EXCEPT_END__ = .); + + .got1 : { *(.got1) } > RAM + + /* 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_ = .); + .got2 : { *(.got2) } > RAM + + .dynamic : { *(.dynamic) } > RAM + + .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 + * 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)) + } > RAM + + .dtors : { KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + } > RAM + + PROVIDE (_FIXUP_START_ = .); + .fixup : { *(.fixup) } > RAM + PROVIDE (_FIXUP_END_ = .); + + PROVIDE (_GOT2_END_ = .); + + PROVIDE (_GOT_START_ = .); + .got : { __got_start = .; + *(.got) + } > RAM + + .got.plt : { *(.got.plt) } > RAM + PROVIDE (_GOT_END_ = .); + + .jcr : { KEEP (*(.jcr)) } > RAM + + /* 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. + */ + /* Initialised small data addressed as offsets from r13 */ + .sdata : { PROVIDE (_SDA_BASE_ = 32768); *(.sdata* .gnu.linkonce.s.*) } > RAM + + _edata = .; + PROVIDE (edata = .); + + /* Zeroed small data addressed as offsets from r13 */ + .sbss : { PROVIDE (__sbss_start = .); + *(.dynsbss) + *(.sbss*) + *(.gnu.linkonce.sb.*) + *(.scommon) + + /* Avoid empty sdata/sbss area: __eabi would not set up + * r13, which may be important if run-time loading is used + */ + . += 1; + + PROVIDE (__SBSS_END__ = .); + PROVIDE (__sbss_end = .); + } > RAM + + .plt : { *(.plt) } > RAM + .iplt : { *(.iplt) } > RAM + + /* Zeroed large data */ + .bss : { PROVIDE (__bss_start = .); + *(.dynbss) + *(.bss) + *(.bss.*) + *(.gnu.linkonce.b*) + *(COMMON) + + PROVIDE (__bss_end = ALIGN(4)); + __bss_size = __bss_end - __bss_start; + } > RAM + + __exeend = ALIGN(4); + __rtems_end = .; + . = ALIGN(0x20); /* Align to a cache-line boundary */ + PROVIDE(__bsp_ram_start = .); + + /* Interrupt stack: aligned on a cache-line boundary */ + . += IntrStackSize; + __intrStack = .; + + /* Main stack lives here */ + _stack = ALIGN(0x20); /* Align to a cache-line boundary */ + . += StackSize; + __stack_base = .; /* Initial stack builds downwards */ + + /* RTEMS workspace: size specified by application */ + WorkAreaBase = ALIGN(0x20); /* Align to a cache-line boundary */ + + /* The heap comes after the work space */ + + . = RamBase + RamSize; + PROVIDE(__bsp_ram_end = .); + + /* Message area for capturing early printk output */ + /* Placed here to be easily findable with a debugger */ + MsgAreaBase = __bsp_ram_end; + . += MsgAreaSize; + + __phy_ram_end = .; /* True end of physical memory */ + + /DISCARD/ : + { + *(.comment) + } + + /* Some configuration constants */ + __vectors = 0; +} -- cgit v1.2.3