diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/gp32/startup/linkcmds')
-rw-r--r-- | c/src/lib/libbsp/arm/gp32/startup/linkcmds | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/gp32/startup/linkcmds b/c/src/lib/libbsp/arm/gp32/startup/linkcmds new file mode 100644 index 0000000000..098fa28ddd --- /dev/null +++ b/c/src/lib/libbsp/arm/gp32/startup/linkcmds @@ -0,0 +1,275 @@ +/* + * GP32 Linker script + * + * Written by Philippe Simons <loki_666@fastmail.fm> + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ +OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm","elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +/* SEARCH_DIR(/usr/local/rtems-arm-dev-tools/arm-rtems/lib); */ + + +MEMORY { + sdram : ORIGIN = 0xc000000, LENGTH = 7M +} + +/* + * Declare some sizes. + */ + +/* The base for SDRAM is set to umon's APPRAMBASE */ +_sdram_base = DEFINED(_sdram_base) ? _sdram_base : 0xc000000; +_sdram_size = DEFINED(_sdram_size) ? _sdram_size : 7M; + + +_irq_stack_size = DEFINED(_irq_stack_size) ? _irq_stack_size : 0x1000; +_fiq_stack_size = DEFINED(_fiq_stack_size) ? _fiq_stack_size : 0x400; +_abt_stack_size = DEFINED(_abt_stack_size) ? _abt_stack_size : 0x100; +_svc_stack_size = DEFINED(_svc_stack_size) ? _svc_stack_size : 0x1000; + + + +/* Do we need any of these for elf? + __DYNAMIC = 0; */ + +SECTIONS +{ + .base : + { + arm_exception_table = .; + + arm_reset_vect = .; /* 0x00 */ + . += 4; + + arm_undef_vect = .; /* 0x04 */ + . += 4; + + arm_swi_vect = .; /* 0x08 */ + . += 4; + + arm_iabrt_vect = .; /* 0x0c */ + . += 4; + + arm_dabrt_vect = .; /* 0x10 */ + . += 4; + + /* no vector here */ + . += 4; + + arm_irq_vect = .; /* 0x18 */ + . += 4; + + arm_fiq_vect = .; /* 0x1c */ + . += 4; + /* FIXME: */ + + rtems_vector_table = .; + . += (8 * 4); /* 8 ARM interrupts */ + + bsp_vector_table = .; + . += (32 * 4); /* 32 S3C2400 interrupts */ + + . = ALIGN (0x100); + + + } > sdram + + + .text : + { + _axf_text_start = . ; + *(EXCLUDE_FILE (*text.iwram*) .text) + *(.text.*) + *(.stub) + + /* + * 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*) + *(.glue_7) + *(.glue_7t) + + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } > sdram + + __text_end = . ; + + .init : + { + *(.init) + } > sdram /*=0*/ + + .jcr : + { + *(.jcr) + } > sdram + + + .fini : + { + *(.fini) + } > sdram /*=0*/ + + .rodata : + { + *(.rodata) + *all.rodata*(*) + *(.roda) + *(.rodata.*) + *(.gnu.linkonce.r*) + SORT(CONSTRUCTORS) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } > sdram = 0xff + + .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)) + KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >sdram = 0 + + .dtors : + { + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >sdram = 0 + + + .eh_frame : + { + KEEP (*(.eh_frame)) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >sdram = 0 + + .gcc_except_table : + { + *(.gcc_except_table) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >sdram = 0 + _axf_ro_end = . ; + + .data ALIGN(4) : + { + _axf_data_start = ABSOLUTE(.); + *(.data) + *(.data.*) + *(.gnu.linkonce.d*) + CONSTRUCTORS + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >sdram = 0xff + + __data_end = . ; + + .bss ALIGN(4): + { + _axf_bss_start = ABSOLUTE(.); + _clear_start = .; + *(.bss) + *(.bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + . = ALIGN(64); + _clear_end = .; + + . = ALIGN (256); + _abt_stack = .; + . += _abt_stack_size; + + . = ALIGN (256); + _irq_stack = .; + . += _irq_stack_size; + + . = ALIGN (256); + _fiq_stack = .; + . += _fiq_stack_size; + + . = ALIGN (256); + _svc_stack = .; + . += _svc_stack_size; + +/* + * Ideally, the MMU's translation table would be in SRAM. But we + * don't have any. If we don't use more regions than TLB entries (64), + * the lookup will only happen once for each region. + */ + . = ALIGN (16 * 1024); + _ttbl_base = .; + . += (16 * 1024); + + . = ALIGN (1024); + _bss_free_start = .; + + } > sdram + _axf_bss_end = . ; + + _end = . ; + __end__ = . ; + PROVIDE (end = _end); + + +/* Debugging stuff follows? */ + + /* 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) } + .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) } + /*.stack 0x80000 : { _stack = .; *(.stack) }*/ + /* These must appear regardless of . */ +} + |