diff options
author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-20 10:35:35 +0200 |
---|---|---|
committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-20 13:52:14 +0200 |
commit | 99648958668d3a33ee57974479b36201fe303f34 (patch) | |
tree | 6f27ea790e2823c6156e71219a4f54680263fac6 /bsps/i386 | |
parent | fbcd7c8fa65eb695e96a62ea1c1ac7a024fa9dfc (diff) |
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.
Diffstat (limited to 'bsps/i386')
-rw-r--r-- | bsps/i386/pc386/start/bsp_fatal_halt.c | 24 | ||||
-rw-r--r-- | bsps/i386/pc386/start/bsp_specs | 9 | ||||
-rw-r--r-- | bsps/i386/pc386/start/bspcmdline.c | 60 | ||||
-rw-r--r-- | bsps/i386/pc386/start/bspgetworkarea.c | 135 | ||||
-rw-r--r-- | bsps/i386/pc386/start/bspidle.S | 19 | ||||
-rw-r--r-- | bsps/i386/pc386/start/bspreset.c | 18 | ||||
-rw-r--r-- | bsps/i386/pc386/start/bspstart.c | 141 | ||||
-rw-r--r-- | bsps/i386/pc386/start/ldsegs.S | 238 | ||||
-rw-r--r-- | bsps/i386/pc386/start/linkcmds | 253 |
9 files changed, 897 insertions, 0 deletions
diff --git a/bsps/i386/pc386/start/bsp_fatal_halt.c b/bsps/i386/pc386/start/bsp_fatal_halt.c new file mode 100644 index 0000000000..07bbd793e0 --- /dev/null +++ b/bsps/i386/pc386/start/bsp_fatal_halt.c @@ -0,0 +1,24 @@ +/** + * COPYRIGHT (c) 2016. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include <bsp.h> + +void _CPU_Fatal_halt(uint32_t source, uint32_t error) +{ + __asm__ volatile ( + "cli\n\t" + "movl %0,%%eax\n\t" + "hlt\n\t" + : "=r" ((error)) + : "0" ((error)) + ); + #ifdef __GNUC__ + __builtin_unreachable(); + #endif +} diff --git a/bsps/i386/pc386/start/bsp_specs b/bsps/i386/pc386/start/bsp_specs new file mode 100644 index 0000000000..87638cc027 --- /dev/null +++ b/bsps/i386/pc386/start/bsp_specs @@ -0,0 +1,9 @@ +%rename endfile old_endfile +%rename startfile old_startfile + +*startfile: +%{!qrtems: %(old_startfile)} \ +%{!nostdlib: %{qrtems: crti.o%s crtbegin.o%s}} + +*endfile: +%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s crtn.o%s} diff --git a/bsps/i386/pc386/start/bspcmdline.c b/bsps/i386/pc386/start/bspcmdline.c new file mode 100644 index 0000000000..d617863198 --- /dev/null +++ b/bsps/i386/pc386/start/bspcmdline.c @@ -0,0 +1,60 @@ +/*-------------------------------------------------------------------------+ +| This file contains the PC386 BSP startup package. It includes application, +| board, and monitor specific initialization and configuration. The generic CPU +| dependent initialization has been performed before this routine is invoked. ++--------------------------------------------------------------------------+ +| (C) Copyright 2009 RTEMS Project +| Chris Johns (chrisj@rtems.org) ++--------------------------------------------------------------------------+ +| Disclaimer: +| +| This file is provided "AS IS" without warranty of any kind, either +| expressed or implied. ++--------------------------------------------------------------------------+ +| This code is based on: +| common sense +| With the following copyright notice: +| ************************************************************************** +| * COPYRIGHT (c) 1989-2008. +| * On-Line Applications Research Corporation (OAR). +| * +| * The license and distribution terms for this file may be +| * found in the file LICENSE in this distribution or at +| * http://www.rtems.org/license/LICENSE. +| ************************************************************************** ++--------------------------------------------------------------------------*/ + +#include <bsp.h> +#include <rtems/pci.h> +#include <libcpu/cpuModel.h> + +/* + * External data + */ +extern uint32_t _boot_multiboot_flags; +extern uint32_t _boot_multiboot_memory[2]; +extern const char _boot_multiboot_cmdline[256]; + +/*-------------------------------------------------------------------------+ +| Function: bsp_cmdline +| Description: Call when you want the command line. +| Global Variables: The multiboot values copied from the loader. +| Arguments: None. +| Returns: The whole command line. ++--------------------------------------------------------------------------*/ +const char* bsp_cmdline( void ) +{ + return _boot_multiboot_cmdline; +} + +/*-------------------------------------------------------------------------+ +| Function: bsp_cmdline_arg +| Description: Call to search for an argument. +| Global Variables: The multiboot values copied from the loader. +| Arguments: The option start. +| Returns: The option if found or nothing. ++--------------------------------------------------------------------------*/ +const char* bsp_cmdline_arg( const char* arg ) +{ + return strstr (bsp_cmdline (), arg); +} diff --git a/bsps/i386/pc386/start/bspgetworkarea.c b/bsps/i386/pc386/start/bspgetworkarea.c new file mode 100644 index 0000000000..21cb472607 --- /dev/null +++ b/bsps/i386/pc386/start/bspgetworkarea.c @@ -0,0 +1,135 @@ +/* + * This routine is an implementation of the bsp_work_area_initialize() + * that can be used by all m68k BSPs following linkcmds conventions + * regarding heap, stack, and workspace allocation. + * + * COPYRIGHT (c) 1989-2008. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +/* #define BSP_GET_WORK_AREA_DEBUG */ +#include <bsp.h> +#include <bsp/bootcard.h> + +#ifdef BSP_GET_WORK_AREA_DEBUG + #include <rtems/bspIo.h> +#endif + +/* + * These are provided by the linkcmds. + */ +extern char WorkAreaBase[]; +extern char HeapSize[]; +extern char RamSize[]; + +/* rudimentary multiboot info */ +struct multiboot_info { + uint32_t flags; /* start.S only raises flags for items actually */ + /* saved; this allows us to check for the size */ + /* of the data structure. */ + uint32_t mem_lower; /* avail kB in lower memory */ + uint32_t mem_upper; /* avail kB in lower memory */ + /* ... (unimplemented) */ +}; + +extern struct multiboot_info _boot_multiboot_info; + +/* + * This is the first address of the memory we can use for the RTEMS + * Work Area. + */ +static uintptr_t rtemsWorkAreaStart; + +/* + * Board's memory size easily be overridden by application. + */ +uint32_t bsp_mem_size = 0; + +/* Size of stack used during initialization. Defined in 'start.s'. */ +extern uint32_t _stack_size; + +static void bsp_size_memory(void) +{ + uintptr_t topAddr; + + /* Set the value of start of free memory. */ + rtemsWorkAreaStart = (uint32_t)WorkAreaBase + _stack_size; + + /* Align the RTEMS Work Area at beginning of free memory. */ + if (rtemsWorkAreaStart & (CPU_ALIGNMENT - 1)) /* not aligned => align it */ + rtemsWorkAreaStart = (rtemsWorkAreaStart+CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1); + + /* The memory detection algorithm is very crude; try + * to use multiboot info, if possible (set from start.S) + */ + if ( ((uintptr_t)RamSize == (uintptr_t) 0xFFFFFFFF) && + (_boot_multiboot_info.flags & 1) && + _boot_multiboot_info.mem_upper ) { + topAddr = _boot_multiboot_info.mem_upper * 1024; + #ifdef BSP_GET_WORK_AREA_DEBUG + printk( "Multiboot info says we have 0x%08x\n", topAddr ); + #endif + } else if ( (uintptr_t) RamSize == (uintptr_t) 0xFFFFFFFF ) { + uintptr_t lowest; + uint32_t val; + int i; + + /* + * We have to dynamically size memory. Memory size can be anything + * between no less than 2M and 2048M. If we can write a value to + * an address and read the same value back, then the memory is there. + * + * WARNING: This can detect memory which should be reserved for + * graphics controllers which share the CPU's RAM. + */ + + /* find the lowest 1M boundary to probe */ + lowest = ((rtemsWorkAreaStart + (1<<20)) >> 20) + 1; + if ( lowest < 2 ) + lowest = 2; + + for (i=2048; i>=lowest; i--) { + topAddr = i*1024*1024 - 4; + *(volatile uint32_t*)topAddr = topAddr; + } + + for(i=lowest; i<=2048; i++) { + topAddr = i*1024*1024 - 4; + val = *(volatile uint32_t*)topAddr; + if (val != topAddr) { + break; + } + } + + topAddr = (i-1)*1024*1024; + #ifdef BSP_GET_WORK_AREA_DEBUG + printk( "Dynamically sized to 0x%08x\n", topAddr ); + #endif + } else { + topAddr = (uintptr_t) RamSize; + #ifdef BSP_GET_WORK_AREA_DEBUG + printk( "hardcoded to 0x%08x\n", topAddr ); + #endif + } + + bsp_mem_size = topAddr; +} + +void bsp_work_area_initialize(void) +{ + void *area_start; + uintptr_t area_size; + + /* + * We need to determine how much memory there is in the system. + */ + bsp_size_memory(); + + area_start = (void *) rtemsWorkAreaStart; + area_size = (uintptr_t) bsp_mem_size - (uintptr_t) rtemsWorkAreaStart; + bsp_work_area_initialize_default( area_start, area_size ); +} diff --git a/bsps/i386/pc386/start/bspidle.S b/bsps/i386/pc386/start/bspidle.S new file mode 100644 index 0000000000..740671afc1 --- /dev/null +++ b/bsps/i386/pc386/start/bspidle.S @@ -0,0 +1,19 @@ +/* + * Idle Thread Body + * + * COPYRIGHT (c) 2016. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include <rtems/asm.h> + +.p2align 4 + +PUBLIC(bsp_idle_thread) +SYM(bsp_idle_thread): +hltloop: hlt + jmp hltloop diff --git a/bsps/i386/pc386/start/bspreset.c b/bsps/i386/pc386/start/bspreset.c new file mode 100644 index 0000000000..0fbcd0f201 --- /dev/null +++ b/bsps/i386/pc386/start/bspreset.c @@ -0,0 +1,18 @@ +/* + * COPYRIGHT (c) 1989-2017. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include <rtems.h> +#include <bsp.h> +#include <bsp/bootcard.h> + +void bsp_reset(void) +{ + /* shutdown and reboot */ + outport_byte(0x64, 0xFE); /* use keyboard controller */ +} diff --git a/bsps/i386/pc386/start/bspstart.c b/bsps/i386/pc386/start/bspstart.c new file mode 100644 index 0000000000..db1ca90cf4 --- /dev/null +++ b/bsps/i386/pc386/start/bspstart.c @@ -0,0 +1,141 @@ +/** + * @file + * + * This file contains the PC386 BSP startup package. It includes application, + * board, and monitor specific initialization and configuration. + */ + +/* + * This file was initially written by Joel Sherrill as part of the go32 BSP. + * It was subsequently adapted as part of the pc386 BSP by developers from + * the NavIST Group in 1997. + * + * Copyright (c) 2016. + * Chris Johns <chrisj@rtems.org> + * + * COPYRIGHT (c) 1989-2008, 2016. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + * + * (C) Copyright 1997 - + * - NavIST Group - Real-Time Distributed Systems and Industrial Automation + * Instituto Superior Tecnico * Lisboa * PORTUGAL (http://pandora.ist.utl.pt) + * + * NavISY Disclaimer: + * This file is provided "AS IS" without warranty of any kind, either + * expressed or implied. + */ + +#include <bsp.h> +#include <bsp/bspimpl.h> +#include <bsp/irq.h> +#include <rtems/pci.h> +#include <libcpu/cpuModel.h> + +/* + * PCI Bus Configuration + */ +rtems_pci_config_t BSP_pci_configuration = { + (volatile unsigned char*)0, + (volatile unsigned char*)0, + NULL +}; + +/* + * Helper to initialize the PCI Bus + */ +static void bsp_pci_initialize_helper(void) +{ + const pci_config_access_functions *pci_accessors; + + pci_accessors = pci_bios_initialize(); + if (pci_accessors != NULL) { + printk("PCI bus: using PCI BIOS interface\n"); + BSP_pci_configuration.pci_functions = pci_accessors; + return; + } + + pci_accessors = pci_io_initialize(); + if (pci_accessors != NULL) { + printk("PCI bus: using PCI I/O interface\n"); + BSP_pci_configuration.pci_functions = pci_accessors; + return; + } + + printk("PCI bus: could not initialize PCI BIOS interface\n"); +} + +/*-------------------------------------------------------------------------+ +| Function: bsp_start +| Description: Called before main is invoked. +| Global Variables: None. +| Arguments: None. +| Returns: Nothing. ++--------------------------------------------------------------------------*/ +static void bsp_start_default( void ) +{ + /* + * Turn off watchdog + */ + /* + * Calibrate variable for 1ms-loop (see timer.c) + */ + Calibrate_loop_1ms(); + + /* + * Init rtems interrupt management + */ + rtems_irq_mngt_init(); + + /* + * Init rtems exceptions management + */ + rtems_exception_init_mngt(); + + /* + * init PCI Bios interface... + */ + bsp_pci_initialize_helper(); + + /* + * Probe for legacy UARTs. + */ + legacy_uart_probe(); + + /* + * Probe for UARTs on PCI. + */ + pci_uart_probe(); + + /* + * Parse the GDB arguments and flag a serial port as not valid. This stops + * the console from claming the port. + */ +#if BSP_GDB_STUB + pc386_parse_gdb_arguments(); +#endif + + /* + * Figure out where printk() and console IO is to be directed. Do this after + * the legacy and PCI bus probes so we have a chance for those devices to be + * added to the set in the console driver. In general, do it as early as + * possible so printk() has a chance to work early on devices found via PCI + * probe. + */ + pc386_parse_console_arguments(); + + Clock_driver_install_handler(); + +#if BSP_ENABLE_IDE + bsp_ide_cmdline_init(); +#endif +} /* bsp_start_default */ + +/* + * By making this a weak alias for bsp_start_default, a brave soul + * can override the actual bsp_start routine used. + */ +void bsp_start (void) __attribute__ ((weak, alias("bsp_start_default"))); diff --git a/bsps/i386/pc386/start/ldsegs.S b/bsps/i386/pc386/start/ldsegs.S new file mode 100644 index 0000000000..b56bf836f0 --- /dev/null +++ b/bsps/i386/pc386/start/ldsegs.S @@ -0,0 +1,238 @@ +/*-------------------------------------------------------------------------+ +| ldsegs.s v1.1 - PC386 BSP - 1997/08/07 ++--------------------------------------------------------------------------+ +| This file assists the board independent startup code by loading the proper +| segment register values. The values loaded are board dependent. In addition +| it contains code to enable the A20 line and to reprogram the PIC to relocate +| the IRQ interrupt vectors to 0x20 -> 0x2f. +| NOTE: No stack has been established when this routine is invoked. +| It returns by jumping back to bspentry. ++--------------------------------------------------------------------------+ +| (C) Copyright 1997 - +| - NavIST Group - Real-Time Distributed Systems and Industrial Automation +| +| http://pandora.ist.utl.pt +| +| Instituto Superior Tecnico * Lisboa * PORTUGAL ++--------------------------------------------------------------------------+ +| Disclaimer: +| +| This file is provided "AS IS" without warranty of any kind, either +| expressed or implied. ++--------------------------------------------------------------------------+ +| This code is base on: +| ldsegs.s,v 1.4 1996/04/20 16:48:30 joel Exp - go32 BSP +| With the following copyright notice: +| ************************************************************************** +| * COPYRIGHT (c) 1989-1999. +| * On-Line Applications Research Corporation (OAR). +| * +| * The license and distribution terms for this file may be +| * found in the file LICENSE in this distribution or at +| * http://www.rtems.org/license/LICENSE. +| ************************************************************************** ++--------------------------------------------------------------------------*/ + +#include <rtems/asm.h> +#include <bsp/tblsizes.h> /* contains sizes of GDT and IDT */ +#include <bspopts.h> + +/*----------------------------------------------------------------------------+ +| CODE section ++----------------------------------------------------------------------------*/ +EXTERN (rtems_i8259_masks) + +BEGIN_CODE + + EXTERN (_establish_stack) + EXTERN (Timer_exit) + EXTERN (clockOff) + +/*----------------------------------------------------------------------------+ +| pc386_delay ++------------------------------------------------------------------------------ +| Delay is needed after doing I/O. +| +| The outb version is OK on most machines BUT the loop version ... +| +| will delay for 1us on 1Gz machine, it will take a little bit +| longer on slower machines, however, it does not matter because we +| are going to call this function only a few times + ++----------------------------------------------------------------------------*/ +#define DELAY_USE_OUTB + + .p2align 4 + .globl _pc386_delay + .globl pc386_delay +pc386_delay: +_pc386_delay: +#ifdef DELAY_USE_OUTB + outb al, $0x80 # about 1uS delay on most machines +#else + movl $0x200, eax +pc386_delay1: + dec eax + jnz pc386_delay1 +#endif + ret + +/*-------------------------------------------------------------------------+ +| Function: _load_segments +| Description: Current environment is standard PC booted by grub. +| So, there is no value in saving current GDT and IDT +| settings we have to set it up ourseves. (Naturally +| it will be not so in case we are booted by some +| boot monitor, however, then it will be different +| BSP). After that we have to load board segment registers +| with apropriate values + reprogram PIC. +| Global Variables: None. +| Arguments: None. +| Returns: Nothing. ++--------------------------------------------------------------------------*/ + .p2align 4 + + PUBLIC (_load_segments) +SYM (_load_segments): + + lgdt SYM(gdtdesc) + lidt SYM(IDT_Descriptor) + + /* Load CS, flush prefetched queue */ + ljmp $0x8, $next_step + +next_step: + /* Load segment registers */ + movw $0x10, ax + movw ax, ss + movw ax, ds + movw ax, es + movw ax, fs + movw ax, gs + +/*---------------------------------------------------------------------+ +| Now we have to reprogram the interrupts :-(. We put them right after +| the intel-reserved hardware interrupts, at int 0x20-0x2F. There they +| won't mess up anything. Sadly IBM really messed this up with the +| original PC, and they haven't been able to rectify it afterwards. Thus +| the bios puts interrupts at 0x08-0x0f, which is used for the internal +| hardware interrupts as well. We just have to reprogram the 8259's, and +| it isn't fun. ++---------------------------------------------------------------------*/ + + movb $0x11, al /* initialization sequence */ + outb al, $0x20 /* send it to 8259A-1 */ + call SYM(pc386_delay) + outb al, $0xA0 /* and to 8259A-2 */ + call SYM(pc386_delay) + + movb $0x20, al /* start of hardware int's (0x20) */ + outb al, $0x21 + call SYM(pc386_delay) + movb $0x28, al /* start of hardware int's 2 (0x28) */ + outb al, $0xA1 + call SYM(pc386_delay) + + movb $0x04, al /* 8259-1 is master */ + outb al, $0x21 + call SYM(pc386_delay) + movb $0x02, al /* 8259-2 is slave */ + outb al, $0xA1 + call SYM(pc386_delay) + + movb $0x01, al /* 8086 mode for both */ + outb al, $0x21 + call SYM(pc386_delay) + outb al, $0xA1 + call SYM(pc386_delay) + + /* + * The IMR values must correspond to the initial value of i8259s_cache. + */ + movb $0xFF, al /* mask off all interrupts for now */ + outb al, $0xA1 + call SYM(pc386_delay) + movb $0xFB, al /* mask all irq's but irq2 which */ + outb al, $0x21 /* is cascaded */ + call SYM(pc386_delay) + jmp SYM (_establish_stack) # return to the bsp entry code + +/*-------------------------------------------------------------------------+ +| Function: _default_int_handler +| Description: default interrupt handler +| Global Variables: None. +| Arguments: None. +| Returns: Nothing. ++--------------------------------------------------------------------------*/ + .p2align 4 + +/*---------------------------------------------------------------------------+ +| GDT itself ++--------------------------------------------------------------------------*/ +#if GDT_SIZE < NUM_SYSTEM_GDT_DESCRIPTORS +#error "GDT_SIZE must be at least NUM_SYSTEM_GDT_DESCRIPTORS" +#endif + +BEGIN_DATA + .p2align 4 + + PUBLIC (_Global_descriptor_table) +SYM (_Global_descriptor_table): + + /* NULL segment */ + .word 0, 0 + .byte 0, 0, 0, 0 + + /* code segment */ + .word 0xffff, 0 + .byte 0, 0x9e, 0xcf, 0 + + /* data segment */ + .word 0xffff, 0 + .byte 0, 0x92, 0xcf, 0 + + /* gs segment */ + .word 0xffff, 0 + .byte 0, 0x92, 0xcf, 0 + + /* allocated space for user segments */ + .rept (GDT_SIZE - NUM_SYSTEM_GDT_DESCRIPTORS) + .word 0,0,0,0 + .endr + +/*---------------------------------------------------------------------------+ +| Descriptor of GDT ++--------------------------------------------------------------------------*/ + PUBLIC(gdtdesc) +SYM(gdtdesc): + .word (GDT_SIZE*8 - 1) + .long SYM (_Global_descriptor_table) + +/*---------------------------------------------------------------------------+ +| IDT itself ++---------------------------------------------------------------------------*/ + .p2align 4 + + PUBLIC(Interrupt_descriptor_table) +SYM(Interrupt_descriptor_table): + .rept IDT_SIZE + .word 0,0,0,0 + .endr + +/*---------------------------------------------------------------------------+ +| Descriptor of IDT ++--------------------------------------------------------------------------*/ + + .p2align 4 + PUBLIC(IDT_Descriptor) +SYM(IDT_Descriptor): + .word (IDT_SIZE*8 - 1) + .long SYM (Interrupt_descriptor_table) + +END_DATA + + .section .m_hdr + .long 0x1BADB002 + .long 0 + .long 0xE4524FFE +END diff --git a/bsps/i386/pc386/start/linkcmds b/bsps/i386/pc386/start/linkcmds new file mode 100644 index 0000000000..5fc3444c9e --- /dev/null +++ b/bsps/i386/pc386/start/linkcmds @@ -0,0 +1,253 @@ +/* + * Copy of default "default linker script, for normal executables" + * provided with binutils 2.18 with minor modifications for use + * as pc386 linkcmds. These changes include: + * + * + sections commented out marked with "XXX commented out --joel" + * + addition of m_hdr section + * + addition of FreeBSD sysctl sections + */ + +/* + * XXX commented out --joel +OUTPUT_FORMAT("elf32-i386", "elf32-i386", + "elf32-i386") +OUTPUT_ARCH(i386) +*/ +STARTUP(start.o) +ENTRY(start) +HeapSize = DEFINED(HeapSize) ? HeapSize : + DEFINED(_HeapSize) ? _HeapSize : 0x0; +RamSize = DEFINED(RamSize) ? RamSize : + DEFINED(_RamSize) ? _RamSize : 0xFFFFFFFF; + +SECTIONS +{ + /* Read-only sections, merged into text segment: */ +/* + * XXX commented out --joel + PROVIDE (__executable_start = 0x08048000); . = 0x08048000 + SIZEOF_HEADERS; +*/ + .interp : { *(.interp) } + .note.gnu.build-id : { *(.note.gnu.build-id) } + .hash : { *(.hash) } + .gnu.hash : { *(.gnu.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + .rel.init : { *(.rel.init) } + .rela.init : { *(.rela.init) } + .rel.text : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) } + .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) } + .rel.fini : { *(.rel.fini) } + .rela.fini : { *(.rela.fini) } + .rel.rodata : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) } + .rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) } + .rel.data.rel.ro : { *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) } + .rela.data.rel.ro : { *(.rela.data.rel.ro* .rela.gnu.linkonce.d.rel.ro.*) } + .rel.data : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) } + .rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) } + .rel.tdata : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) } + .rela.tdata : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) } + .rel.tbss : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) } + .rela.tbss : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) } + .rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .plt : { *(.plt) } + .text : + { + *(.m_hdr) + *(.text .stub .text.* .gnu.linkonce.t.*) + KEEP (*(.text.*personality*)) + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + + } =0x90909090 + + .rtemsroset : { + /* for pre rtems-libbsd FreeBSD code */ + __start_set_sysctl_set = .; + *(set_sysctl_*); + __stop_set_sysctl_set = .; + *(set_domain_*); + *(set_pseudo_*); + + KEEP (*(SORT(.rtemsroset.*))) + } =0x90909090 + + .init : + { + KEEP (*(.init)) + } =0x90909090 + .fini : + { + KEEP (*(.fini)) + } =0x90909090 + PROVIDE (__etext = .); + PROVIDE (_etext = .); + PROVIDE (etext = .); + .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } + .rodata1 : { *(.rodata1) } + .tdata : { + _TLS_Data_begin = .; + *(.tdata .tdata.* .gnu.linkonce.td.*) + _TLS_Data_end = .; + } + .tbss : { + _TLS_BSS_begin = .; + *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) + _TLS_BSS_end = .; + } + _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)); + .eh_frame_hdr : { *(.eh_frame_hdr) } + .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } + .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) } + /* Adjust the address for the data segment. We want to adjust up to + the same address within the page on the next page up. */ + . = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE)); + /* Exception handling */ + .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } + .gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } + /* Thread Local Storage sections */ + .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } + .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } + .preinit_array : + { + PROVIDE_HIDDEN (__preinit_array_start = .); + KEEP (*(.preinit_array)) + PROVIDE_HIDDEN (__preinit_array_end = .); + } + .init_array : + { + PROVIDE_HIDDEN (__init_array_start = .); + KEEP (*(SORT(.init_array.*))) + KEEP (*(.init_array)) + PROVIDE_HIDDEN (__init_array_end = .); + } + .fini_array : + { + PROVIDE_HIDDEN (__fini_array_start = .); + KEEP (*(.fini_array)) + KEEP (*(SORT(.fini_array.*))) + PROVIDE_HIDDEN (__fini_array_end = .); + } + .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 (*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 *crtend?.o ) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + } + .dtors : + { + KEEP (*crtbegin.o(.dtors)) + KEEP (*crtbegin?.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + } + .jcr : { KEEP (*(.jcr)) } + .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) } + .dynamic : { *(.dynamic) } + .got : { *(.got) } + . = DATA_SEGMENT_RELRO_END (12, .); + .got.plt : { *(.got.plt) } + .data : + { + *(.data .data.* .gnu.linkonce.d.*) + KEEP (*(.gnu.linkonce.d.*personality*)) + SORT(CONSTRUCTORS) + } + .data1 : { *(.data1) } + .rtemsrwset : { KEEP (*(SORT(.rtemsrwset.*))) } + _edata = .; PROVIDE (edata = .); + __bss_start = .; + .bss : + { + *(.dynbss) + *(.bss .bss.* .gnu.linkonce.b.*) + *(COMMON) + /* Align here to ensure that the .bss section occupies space up to + _end. Align after .bss to ensure correct alignment even if the + .bss section disappears because there are no input sections. + FIXME: Why do we need it? When there is no .bss section, we don't + pad the .data section. */ + . = ALIGN(. != 0 ? 32 / 8 : 1); + } + . = ALIGN(32 / 8); + . = ALIGN(32 / 8); + _end = .; PROVIDE (end = .); + . = ALIGN(0x10); + WorkAreaBase = .; + . = DATA_SEGMENT_END (.); + + /* 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_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) } + /* DWARF 3 */ + .debug_pubtypes 0 : { *(.debug_pubtypes) } + .debug_ranges 0 : { *(.debug_ranges) } + /* DWARF extension */ + .debug_macro 0 : { *(.debug_macro) } + .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } + /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) } +} |