| /branches/dynload/uspace/app/dload/dload.c |
|---|
| 0,0 → 1,108 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * 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 the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. |
| */ |
| /** @addtogroup rtld rtld |
| * @brief |
| * @{ |
| */ |
| /** |
| * @file |
| */ |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <loader/pcb.h> |
| /* from librtld */ |
| #include <rtld.h> |
| #include <dynamic.h> |
| #include <elf_load.h> |
| #include <module.h> |
| void program_run(void *entry, pcb_t *pcb); |
| int main(int argc, char *argv[]) |
| { |
| static module_t prog; |
| DPRINTF("Hello, world! (from dload)\n"); |
| if (__pcb->dynamic == NULL) { |
| printf("This is the dynamic loader. It is not supposed " |
| "to be executed directly.\n"); |
| return -1; |
| } |
| /* |
| * First we need to process dynamic sections of the executable |
| * program and insert it into the module graph. |
| */ |
| DPRINTF("Parse program .dynamic section at 0x%x\n", __pcb->dynamic); |
| dynamic_parse(__pcb->dynamic, 0, &prog.dyn); |
| prog.bias = 0; |
| prog.dyn.soname = "[program]"; |
| /* Initialize list of loaded modules */ |
| list_initialize(&runtime_env.modules_head); |
| list_append(&prog.modules_link, &runtime_env.modules_head); |
| /* Pointer to program module. Used as root of the module graph. */ |
| runtime_env.program = &prog; |
| /* |
| * Now we can continue with loading all other modules. |
| */ |
| DPRINTF("Load all program dependencies\n"); |
| module_load_deps(&prog); |
| /* |
| * Now relocate/link all modules together. |
| */ |
| /* Process relocations in all modules */ |
| DPRINTF("Relocate all modules\n"); |
| modules_process_relocs(); |
| /* |
| * Finally, run the main program. |
| */ |
| DPRINTF("Run program.. (at 0x%lx)\n", (uintptr_t)__pcb->entry); |
| #ifndef RTLD_DEBUG |
| close_console(); |
| #endif |
| program_run(__pcb->entry, __pcb); |
| /* not reached */ |
| return 0; |
| } |
| /** @} |
| */ |
| /branches/dynload/uspace/app/dload/Makefile |
|---|
| 0,0 → 1,100 |
| # |
| # Copyright (c) 2005 Martin Decky |
| # 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 the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. |
| # |
| include ../../../version |
| include ../../Makefile.config |
| ## Setup toolchain |
| # |
| LIBC_PREFIX = ../../lib/libc |
| SOFTINT_PREFIX = ../../lib/softint |
| RTLD_PREFIX = ../../lib/rtld |
| include $(LIBC_PREFIX)/Makefile.toolchain |
| include arch/$(ARCH)/Makefile.inc |
| CFLAGS += -Iinclude -I../../srv/loader/include -I../../lib/rtld/include -O0 -ggdb |
| LFLAGS += |
| LIBS = $(RTLD_PREFIX)/librtld.a $(LIBC_PREFIX)/libc.a $(SOFTINT_PREFIX)/libsoftint.a |
| DEFS += -DRELEASE=\"$(RELEASE)\" |
| ifdef REVISION |
| DEFS += "-DREVISION=\"$(REVISION)\"" |
| endif |
| ifdef TIMESTAMP |
| DEFS += "-DTIMESTAMP=\"$(TIMESTAMP)\"" |
| endif |
| ## Sources |
| # |
| OUTPUT = dload |
| GENERIC_SOURCES = \ |
| dload.c |
| GENERIC_OBJECTS := $(addsuffix .o,$(basename $(GENERIC_SOURCES))) |
| ARCH_OBJECTS := $(addsuffix .o,$(basename $(ARCH_SOURCES))) |
| .PHONY: all clean depend disasm sections inc |
| all: inc $(OUTPUT) disasm sections |
| inc: |
| ln -sfn ../arch/$(ARCH)/include include/arch |
| -include Makefile.depend |
| clean: |
| -rm -f $(OUTPUT) $(OUTPUT).map $(OUTPUT).disasm $(OUTPUT).sections Makefile.depend *.o arch/$(ARCH)/_link.ld include/arch |
| find arch/$(ARCH)/ -name '*.o' -follow -exec rm \{\} \; |
| depend: |
| $(CC) $(DEFS) $(CFLAGS) -M $(ARCH_SOURCES) $(GENERIC_SOURCES)> Makefile.depend |
| $(OUTPUT): $(ARCH_OBJECTS) $(GENERIC_OBJECTS) $(LIBS) arch/$(ARCH)/_link.ld |
| $(LD) -T arch/$(ARCH)/_link.ld $(ARCH_OBJECTS) $(GENERIC_OBJECTS) $(LIBS) $(LFLAGS) -o $@ -Map $(OUTPUT).map |
| disasm: |
| $(OBJDUMP) -d -S -s $(OUTPUT) >$(OUTPUT).disasm |
| sections: |
| $(OBJDUMP) -h $(OUTPUT) >$(OUTPUT).sections |
| arch/$(ARCH)/_link.ld: arch/$(ARCH)/_link.ld.in |
| $(CC) $(DEFS) $(CFLAGS) -DLIBC_PREFIX=$(LIBC_PREFIX) -E -x c $< | grep -v "^\#" > $@ |
| %.o: %.S |
| $(CC) $(DEFS) $(AFLAGS) $(CFLAGS) -D__ASM__ -c $< -o $@ |
| %.o: %.s |
| $(AS) $(AFLAGS) $< -o $@ |
| %.o: %.c |
| $(CC) $(DEFS) $(CFLAGS) -c $< -o $@ |
| /branches/dynload/uspace/app/dload/arch/ppc32/_link.ld.in |
|---|
| 0,0 → 1,87 |
| STARTUP(LIBC_PREFIX/arch/ARCH/src/entry.o) |
| ENTRY(__entry) |
| PHDRS { |
| text PT_LOAD FLAGS(5); |
| data PT_LOAD FLAGS(6); |
| } |
| SECTIONS { |
| . = 0x40001000; |
| .init : { |
| *(.init); |
| } :text |
| .text : { |
| *(.text); |
| *(.rodata*); |
| } :text |
| .rel.plt : { |
| *(.rel.plt); |
| } |
| /* |
| *.rel.dyn MUST FOLLOW IMMEDIATELY after .rel.plt |
| * without alignment gap or DT_REL will be broken |
| */ |
| .rel.dyn : { |
| *(.rel.*); |
| } :text |
| .dynamic : { |
| *(.dynamic); |
| } :text |
| .dynsym : { |
| *(.dynsym); |
| } :text |
| .dynstr : { |
| *(.dynstr); |
| } :text |
| /* data segment */ |
| . = ALIGN(0x1000); |
| .data : { |
| *(.data); |
| *(.sdata); |
| } :data |
| .dynamic : { |
| *(.dynamic); |
| } :text |
| .dynsym : { |
| *(.dynsym); |
| } :text |
| .dynstr : { |
| *(.dynstr); |
| } :text |
| .tdata : { |
| _tdata_start = .; |
| *(.tdata); |
| _tdata_end = .; |
| } :data |
| .tbss : { |
| _tbss_start = .; |
| *(.tbss); |
| _tbss_end = .; |
| } :data |
| _tls_alignment = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)); |
| .bss : { |
| *(.sbss); |
| *(COMMON); |
| *(.bss); |
| } :data |
| /* On ppc32 the plt section is uninitialized and must be here! */ |
| .plt : { |
| *(.plt); |
| } :data |
| . = ALIGN(0x1000); |
| _heap = .; |
| } |
| /branches/dynload/uspace/app/dload/arch/ppc32/Makefile.inc |
|---|
| 0,0 → 1,32 |
| # |
| # Copyright (c) 2008 Jiri Svoboda |
| # 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 the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. |
| # |
| CFLAGS += -D__32_BITS__ |
| ARCH_SOURCES := \ |
| arch/$(ARCH)/start.s |
| /branches/dynload/uspace/app/dload/arch/ppc32/start.s |
|---|
| 0,0 → 1,40 |
| # |
| # Copyright (c) 2008 Jiri Svoboda |
| # 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 the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. |
| # |
| .globl program_run |
| ## void program_run(void *entry_point, void *pcb); |
| # |
| # %r3 contains entry_point |
| # %r4 contains pcb |
| # |
| # Jump to a program entry point |
| program_run: |
| mtctr %r3 |
| mr %r6, %r4 # Pass pcb to the entry point in %r6 |
| bctr |
| /branches/dynload/uspace/app/dload/arch/ia32/_link.ld.in |
|---|
| 0,0 → 1,84 |
| STARTUP(LIBC_PREFIX/arch/ARCH/src/entry.o) |
| ENTRY(__entry) |
| PHDRS { |
| text PT_LOAD FLAGS(5); |
| data PT_LOAD FLAGS(6); |
| } |
| SECTIONS { |
| . = 0x60001000 + SIZEOF_HEADERS; |
| .init : { |
| *(.init); |
| } :text |
| .text : { |
| *(.text); |
| *(.text.*); |
| *(.rodata*); |
| } :text |
| .rel.plt : { |
| *(.rel.plt); |
| } |
| /* |
| *.rel.dyn MUST FOLLOW IMMEDIATELY after .rel.plt |
| * without alignment gap or DT_REL will be broken |
| */ |
| .rel.dyn : { |
| *(.rel.*); |
| } :text |
| .plt : { |
| *(.plt); |
| } :text |
| .dynamic : { |
| *(.dynamic); |
| } :text |
| .dynsym : { |
| *(.dynsym); |
| } :text |
| .dynstr : { |
| *(.dynstr); |
| } :text |
| . = . + 0x1000; |
| .data : { |
| *(.data); |
| } :data |
| .data.rel : { |
| *(.data.rel); |
| } :data |
| .got : { |
| *(.got); |
| } :data |
| .got.plt : { |
| *(.got.plt); |
| } :data |
| .bss : { |
| *(COMMON); |
| *(.bss); |
| } :data |
| .tdata : { |
| _tdata_start = .; |
| *(.tdata); |
| _tdata_end = .; |
| } :data |
| .tbss : { |
| _tbss_start = .; |
| *(.tbss); |
| _tbss_end = .; |
| } :data |
| _tls_alignment = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)); |
| . = ALIGN(0x1000); |
| _heap = .; |
| } |
| /branches/dynload/uspace/app/dload/arch/ia32/Makefile.inc |
|---|
| 0,0 → 1,32 |
| # |
| # Copyright (c) 2008 Jiri Svoboda |
| # 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 the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. |
| # |
| CFLAGS += -D__32_BITS__ |
| ARCH_SOURCES := \ |
| arch/$(ARCH)/start.c |
| /branches/dynload/uspace/app/dload/arch/ia32/start.c |
|---|
| 0,0 → 1,49 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * 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 the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. |
| */ |
| /** @addtogroup rtld rtld |
| * @brief |
| * @{ |
| */ |
| /** |
| * @file |
| */ |
| #include <loader/pcb.h> |
| void program_run(void *entry, pcb_t *pcb) |
| { |
| asm ( |
| "mov %%eax, %%ebx\n" |
| "jmp *%0\n" |
| :: "m" (entry), "a" (pcb) |
| ); |
| } |
| /** @} |
| */ |