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/branches/tracing/uspace/app/iloader/main.c
0,0 → 1,105
/*
* 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 loader
* @brief Loads and runs programs from VFS.
* @{
*/
/**
* @file
*/
 
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
 
#include "elf.h"
 
unsigned int elf_load(int fd, elf_header_t *header);
 
typedef void (*entry_point_t)(void);
 
int elf_load_file(char *file_name, elf_header_t *header)
{
int fd;
int rc;
 
printf("open and read '%s'...\n", file_name);
 
fd = open(file_name, 0);
if (fd < 0) {
printf("failed opening file\n");
return -1;
}
 
rc = elf_load(fd, header);
printf("elf_load() -> %d\n", rc);
 
close(fd);
 
return rc;
}
 
void elf_run(elf_header_t *header)
{
entry_point_t entry_point;
 
entry_point = (entry_point_t)header->e_entry;
(*entry_point)();
 
/* not reached */
}
 
int main(int argc, char *argv[])
{
elf_header_t header;
char *file_name;
int rc;
 
printf("This is loader\n");
getchar();
 
file_name = "/tetris";
rc = elf_load_file(file_name, &header);
printf("open and read '%s'...\n", file_name);
 
if (rc < 0) {
printf("failed to load program\n");
return 1;
}
 
printf("run program\n");
elf_run(&header);
 
/* not reached */
return 0;
}
 
/** @}
*/
/branches/tracing/uspace/app/iloader/elf.c
0,0 → 1,296
/*
* Copyright (c) 2006 Sergey Bondari
* Copyright (c) 2006 Jakub Jermar
* 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 generic
* @{
*/
 
/**
* @file
* @brief Kernel ELF loader.
*/
 
#include <stdio.h>
#include <sys/types.h>
#include <align.h>
#include <assert.h>
#include <as.h>
#include "elf.h"
 
 
static char *error_codes[] = {
"no error",
"invalid image",
"address space error",
"incompatible image",
"unsupported image type",
"irrecoverable error"
};
 
static int segment_header(int fd, elf_header_t *elf);
static int section_header(elf_section_header_t *entry, elf_header_t *elf);
static int load_segment(int fd, elf_segment_header_t *entry, elf_header_t *elf);
 
typedef void (*epoint_t)(void);
 
/** ELF loader
*
* @param header Pointer to ELF header in memory
* @return EE_OK on success
*/
unsigned int elf_load(int fd, elf_header_t *header)
{
int i, rc;
 
rc = read(fd, header, sizeof(elf_header_t));
if (rc < 0) {
printf("read error\n");
return EE_INVALID;
}
 
printf("ELF-load:");
/* Identify ELF */
if (header->e_ident[EI_MAG0] != ELFMAG0 ||
header->e_ident[EI_MAG1] != ELFMAG1 ||
header->e_ident[EI_MAG2] != ELFMAG2 ||
header->e_ident[EI_MAG3] != ELFMAG3) {
printf("invalid header\n");
return EE_INVALID;
}
/* Identify ELF compatibility */
if (header->e_ident[EI_DATA] != ELF_DATA_ENCODING ||
header->e_machine != ELF_MACHINE ||
header->e_ident[EI_VERSION] != EV_CURRENT ||
header->e_version != EV_CURRENT ||
header->e_ident[EI_CLASS] != ELF_CLASS) {
printf("incompatible data/version/class\n");
return EE_INCOMPATIBLE;
}
 
if (header->e_phentsize != sizeof(elf_segment_header_t))
return EE_INCOMPATIBLE;
 
if (header->e_shentsize != sizeof(elf_section_header_t))
return EE_INCOMPATIBLE;
 
/* Check if the object type is supported. */
if (header->e_type != ET_EXEC && header->e_type != ET_DYN) {
printf("Object type %d is not supported\n", header->e_type);
return EE_UNSUPPORTED;
}
if (header->e_type == ET_DYN) header->e_entry += 0x40000;
 
printf("parse segments\n");
 
/* Walk through all segment headers and process them. */
for (i = 0; i < header->e_phnum; i++) {
 
/* Seek to start of header */
lseek(fd, header->e_phoff + i * sizeof(elf_segment_header_t), SEEK_SET);
 
rc = segment_header(fd, header);
if (rc != EE_OK)
return rc;
}
 
printf("parse sections\n");
 
/* Inspect all section headers and proccess them. */
for (i = 0; i < header->e_shnum; i++) {
/* elf_section_header_t *sechdr;
 
sechdr = &((elf_section_header_t *)(((uint8_t *) header) +
header->e_shoff))[i];
rc = section_header(sechdr, header);
if (rc != EE_OK)
return rc;*/
}
 
printf("done\n");
 
return EE_OK;
}
 
/** Print error message according to error code.
*
* @param rc Return code returned by elf_load().
*
* @return NULL terminated description of error.
*/
char *elf_error(unsigned int rc)
{
assert(rc < sizeof(error_codes) / sizeof(char *));
 
return error_codes[rc];
}
 
/** Process segment header.
*
* @param entry Segment header.
* @param elf ELF header.
*
* @return EE_OK on success, error code otherwise.
*/
static int segment_header(int fd, elf_header_t *elf)
{
static elf_segment_header_t entry_buf;
elf_segment_header_t *entry = &entry_buf;
int rc;
 
rc = read(fd, entry, sizeof(elf_segment_header_t));
if (rc < 0) { printf("read error\n"); return EE_INVALID; }
 
switch (entry->p_type) {
case PT_NULL:
case PT_PHDR:
break;
case PT_LOAD:
return load_segment(fd, entry, elf);
break;
case PT_DYNAMIC:
case PT_INTERP:
case PT_SHLIB:
case PT_NOTE:
case PT_LOPROC:
case PT_HIPROC:
default:
printf("segment p_type %d unknown\n", entry->p_type);
return EE_UNSUPPORTED;
break;
}
return EE_OK;
}
 
/** Load segment described by program header entry.
*
* @param entry Program header entry describing segment to be loaded.
* @param elf ELF header.
*
* @return EE_OK on success, error code otherwise.
*/
int load_segment(int fd, elf_segment_header_t *entry, elf_header_t *elf)
{
void *a;
int flags = 0;
uintptr_t load_displ;
int rc;
 
printf("load segment at addr 0x%x, size 0x%x\n", entry->p_vaddr,
entry->p_memsz);
/*if (elf->e_type == ET_DYN) load_displ = 0x40000;
else*/ load_displ = 0;
 
if (entry->p_align > 1) {
if ((entry->p_offset % entry->p_align) !=
(entry->p_vaddr % entry->p_align)) {
printf("align check 1 failed offset%%align=%d, vaddr%%align=%d\n",
entry->p_offset % entry->p_align,
entry->p_vaddr % entry->p_align
);
return EE_INVALID;
}
}
 
/* if (entry->p_flags & PF_X)
flags |= AS_AREA_EXEC;
if (entry->p_flags & PF_W)
flags |= AS_AREA_WRITE;
if (entry->p_flags & PF_R)
flags |= AS_AREA_READ;
flags |= AS_AREA_CACHEABLE;
*/
/* FIXME: Kernel won't normally allow this, unless you "patch" it */
flags = AS_AREA_READ | AS_AREA_WRITE | AS_AREA_EXEC | AS_AREA_CACHEABLE;
 
/*
* Check if the virtual address starts on page boundary.
*/
if (ALIGN_UP(entry->p_vaddr, PAGE_SIZE) != entry->p_vaddr) {
printf("align check 2 failed - not page-aligned\n");
printf("vaddr = 0x%x, should be 0x%x\n",
entry->p_vaddr, ALIGN_UP(entry->p_vaddr, PAGE_SIZE));
return EE_UNSUPPORTED;
}
printf("map to p_vaddr=0x%x-0x%x...\n", entry->p_vaddr + load_displ,
entry->p_vaddr + load_displ + ALIGN_UP(entry->p_memsz, PAGE_SIZE));
 
a = as_area_create((uint8_t *)entry->p_vaddr + load_displ,
entry->p_memsz, flags);
if (a == (void *)(-1)) {
printf("memory mapping failed\n");
return EE_MEMORY;
}
 
printf("as_area_create() -> 0x%x\n", (unsigned)a);
 
/*
* Load segment data
*/
rc = lseek(fd, entry->p_offset, SEEK_SET);
if (rc < 0) { printf("seek error\n"); return EE_INVALID; }
 
rc = read(fd, (void *)entry->p_vaddr, entry->p_filesz);
if (rc < 0) { printf("read error\n"); return EE_INVALID; }
 
return EE_OK;
}
 
/** Process section header.
*
* @param entry Segment header.
* @param elf ELF header.
*
* @return EE_OK on success, error code otherwise.
*/
static int section_header(elf_section_header_t *entry, elf_header_t *elf)
{
switch (entry->sh_type) {
case SHT_PROGBITS:
if (entry->sh_flags & SHF_TLS) {
/* .tdata */
}
break;
case SHT_NOBITS:
if (entry->sh_flags & SHF_TLS) {
/* .tbss */
}
break;
default:
break;
}
return EE_OK;
}
 
/** @}
*/
/branches/tracing/uspace/app/iloader/elf.h
0,0 → 1,344
/*
* Copyright (c) 2006 Sergey Bondari
* 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 generic
* @{
*/
/** @file
*/
 
#ifndef ELF_H_
#define ELF_H_
 
#include <arch/elf.h>
#include <sys/types.h>
 
/**
* current ELF version
*/
#define EV_CURRENT 1
 
/**
* ELF types
*/
#define ET_NONE 0 /* No type */
#define ET_REL 1 /* Relocatable file */
#define ET_EXEC 2 /* Executable */
#define ET_DYN 3 /* Shared object */
#define ET_CORE 4 /* Core */
#define ET_LOPROC 0xff00 /* Processor specific */
#define ET_HIPROC 0xffff /* Processor specific */
 
/**
* ELF machine types
*/
#define EM_NO 0 /* No machine */
#define EM_SPARC 2 /* SPARC */
#define EM_386 3 /* i386 */
#define EM_MIPS 8 /* MIPS RS3000 */
#define EM_MIPS_RS3_LE 10 /* MIPS RS3000 LE */
#define EM_PPC 20 /* PPC32 */
#define EM_PPC64 21 /* PPC64 */
#define EM_ARM 40 /* ARM */
#define EM_SPARCV9 43 /* SPARC64 */
#define EM_IA_64 50 /* IA-64 */
#define EM_X86_64 62 /* AMD64/EMT64 */
 
/**
* ELF identification indexes
*/
#define EI_MAG0 0
#define EI_MAG1 1
#define EI_MAG2 2
#define EI_MAG3 3
#define EI_CLASS 4 /* File class */
#define EI_DATA 5 /* Data encoding */
#define EI_VERSION 6 /* File version */
#define EI_OSABI 7
#define EI_ABIVERSION 8
#define EI_PAD 9 /* Start of padding bytes */
#define EI_NIDENT 16 /* ELF identification table size */
 
/**
* ELF magic number
*/
#define ELFMAG0 0x7f
#define ELFMAG1 'E'
#define ELFMAG2 'L'
#define ELFMAG3 'F'
 
/**
* ELF file classes
*/
#define ELFCLASSNONE 0
#define ELFCLASS32 1
#define ELFCLASS64 2
 
/**
* ELF data encoding types
*/
#define ELFDATANONE 0
#define ELFDATA2LSB 1 /* Least significant byte first (little endian) */
#define ELFDATA2MSB 2 /* Most signigicant byte first (big endian) */
 
/**
* ELF error return codes
*/
#define EE_OK 0 /* No error */
#define EE_INVALID 1 /* Invalid ELF image */
#define EE_MEMORY 2 /* Cannot allocate address space */
#define EE_INCOMPATIBLE 3 /* ELF image is not compatible with current architecture */
#define EE_UNSUPPORTED 4 /* Non-supported ELF (e.g. dynamic ELFs) */
#define EE_IRRECOVERABLE 5
 
/**
* ELF section types
*/
#define SHT_NULL 0
#define SHT_PROGBITS 1
#define SHT_SYMTAB 2
#define SHT_STRTAB 3
#define SHT_RELA 4
#define SHT_HASH 5
#define SHT_DYNAMIC 6
#define SHT_NOTE 7
#define SHT_NOBITS 8
#define SHT_REL 9
#define SHT_SHLIB 10
#define SHT_DYNSYM 11
#define SHT_LOOS 0x60000000
#define SHT_HIOS 0x6fffffff
#define SHT_LOPROC 0x70000000
#define SHT_HIPROC 0x7fffffff
#define SHT_LOUSER 0x80000000
#define SHT_HIUSER 0xffffffff
 
/**
* ELF section flags
*/
#define SHF_WRITE 0x1
#define SHF_ALLOC 0x2
#define SHF_EXECINSTR 0x4
#define SHF_TLS 0x400
#define SHF_MASKPROC 0xf0000000
 
/**
* Symbol binding
*/
#define STB_LOCAL 0
#define STB_GLOBAL 1
#define STB_WEAK 2
#define STB_LOPROC 13
#define STB_HIPROC 15
 
/**
* Symbol types
*/
#define STT_NOTYPE 0
#define STT_OBJECT 1
#define STT_FUNC 2
#define STT_SECTION 3
#define STT_FILE 4
#define STT_LOPROC 13
#define STT_HIPROC 15
 
/**
* Program segment types
*/
#define PT_NULL 0
#define PT_LOAD 1
#define PT_DYNAMIC 2
#define PT_INTERP 3
#define PT_NOTE 4
#define PT_SHLIB 5
#define PT_PHDR 6
#define PT_LOPROC 0x70000000
#define PT_HIPROC 0x7fffffff
 
/**
* Program segment attributes.
*/
#define PF_X 1
#define PF_W 2
#define PF_R 4
 
/**
* ELF data types
*
* These types are found to be identical in both 32-bit and 64-bit
* ELF object file specifications. They are the only types used
* in ELF header.
*/
typedef uint64_t elf_xword;
typedef int64_t elf_sxword;
typedef uint32_t elf_word;
typedef int32_t elf_sword;
typedef uint16_t elf_half;
 
/**
* 32-bit ELF data types.
*
* These types are specific for 32-bit format.
*/
typedef uint32_t elf32_addr;
typedef uint32_t elf32_off;
 
/**
* 64-bit ELF data types.
*
* These types are specific for 64-bit format.
*/
typedef uint64_t elf64_addr;
typedef uint64_t elf64_off;
 
/** ELF header */
struct elf32_header {
uint8_t e_ident[EI_NIDENT];
elf_half e_type;
elf_half e_machine;
elf_word e_version;
elf32_addr e_entry;
elf32_off e_phoff;
elf32_off e_shoff;
elf_word e_flags;
elf_half e_ehsize;
elf_half e_phentsize;
elf_half e_phnum;
elf_half e_shentsize;
elf_half e_shnum;
elf_half e_shstrndx;
};
struct elf64_header {
uint8_t e_ident[EI_NIDENT];
elf_half e_type;
elf_half e_machine;
elf_word e_version;
elf64_addr e_entry;
elf64_off e_phoff;
elf64_off e_shoff;
elf_word e_flags;
elf_half e_ehsize;
elf_half e_phentsize;
elf_half e_phnum;
elf_half e_shentsize;
elf_half e_shnum;
elf_half e_shstrndx;
};
 
/*
* ELF segment header.
* Segments headers are also known as program headers.
*/
struct elf32_segment_header {
elf_word p_type;
elf32_off p_offset;
elf32_addr p_vaddr;
elf32_addr p_paddr;
elf_word p_filesz;
elf_word p_memsz;
elf_word p_flags;
elf_word p_align;
};
struct elf64_segment_header {
elf_word p_type;
elf_word p_flags;
elf64_off p_offset;
elf64_addr p_vaddr;
elf64_addr p_paddr;
elf_xword p_filesz;
elf_xword p_memsz;
elf_xword p_align;
};
 
/*
* ELF section header
*/
struct elf32_section_header {
elf_word sh_name;
elf_word sh_type;
elf_word sh_flags;
elf32_addr sh_addr;
elf32_off sh_offset;
elf_word sh_size;
elf_word sh_link;
elf_word sh_info;
elf_word sh_addralign;
elf_word sh_entsize;
};
struct elf64_section_header {
elf_word sh_name;
elf_word sh_type;
elf_xword sh_flags;
elf64_addr sh_addr;
elf64_off sh_offset;
elf_xword sh_size;
elf_word sh_link;
elf_word sh_info;
elf_xword sh_addralign;
elf_xword sh_entsize;
};
 
/*
* ELF symbol table entry
*/
struct elf32_symbol {
elf_word st_name;
elf32_addr st_value;
elf_word st_size;
uint8_t st_info;
uint8_t st_other;
elf_half st_shndx;
};
struct elf64_symbol {
elf_word st_name;
uint8_t st_info;
uint8_t st_other;
elf_half st_shndx;
elf64_addr st_value;
elf_xword st_size;
};
 
#ifdef __32_BITS__
typedef struct elf32_header elf_header_t;
typedef struct elf32_segment_header elf_segment_header_t;
typedef struct elf32_section_header elf_section_header_t;
typedef struct elf32_symbol elf_symbol_t;
#endif
#ifdef __64_BITS__
typedef struct elf64_header elf_header_t;
typedef struct elf64_segment_header elf_segment_header_t;
typedef struct elf64_section_header elf_section_header_t;
typedef struct elf64_symbol elf_symbol_t;
#endif
 
extern char *elf_error(unsigned int rc);
 
#endif
 
/** @}
*/
/branches/tracing/uspace/app/iloader/Makefile
0,0 → 1,92
#
# Copyright (c) 2005 Martin Decky
# 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.
#
 
include ../../../version
include ../../Makefile.config
 
## Setup toolchain
#
 
LIBC_PREFIX = ../../lib/libc
SOFTINT_PREFIX = ../../lib/softint
include $(LIBC_PREFIX)/Makefile.toolchain
 
CFLAGS += -I../../srv/kbd/include -D__32_BITS__
 
LIBS = $(LIBC_PREFIX)/libc.a
DEFS += -DRELEASE=\"$(RELEASE)\"
 
ifdef REVISION
DEFS += "-DREVISION=\"$(REVISION)\""
endif
 
ifdef TIMESTAMP
DEFS += "-DTIMESTAMP=\"$(TIMESTAMP)\""
endif
 
## Sources
#
 
OUTPUT = iloader
SOURCES = \
main.c \
elf.c
 
OBJECTS := $(addsuffix .o,$(basename $(SOURCES)))
 
.PHONY: all clean depend disasm
 
all: $(OUTPUT) disasm
 
-include Makefile.depend
 
clean:
-rm -f $(OUTPUT) $(OUTPUT).map $(OUTPUT).disasm arch/$(ARCH)/_link.ld Makefile.depend
 
depend:
$(CC) $(DEFS) $(CFLAGS) -M $(SOURCES) > Makefile.depend
 
$(OUTPUT): $(OBJECTS) $(LIBS) arch/$(ARCH)/_link.ld
# $(LD) -T $(LIBC_PREFIX)/arch/$(ARCH)/_link.ld $(OBJECTS) $(LIBS) $(LFLAGS) -o $@ -Map $(OUTPUT).map
$(LD) -T arch/$(ARCH)/_link.ld $(OBJECTS) $(LIBS) $(LFLAGS) -o $@ -Map $(OUTPUT).map
 
disasm:
$(OBJDUMP) -d $(OUTPUT) >$(OUTPUT).disasm
 
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/tracing/uspace/app/iloader/arch/ia32/_link.ld.in
0,0 → 1,46
STARTUP(LIBC_PREFIX/arch/ARCH/src/entry.o)
ENTRY(__entry)
 
PHDRS {
text PT_LOAD FLAGS(5);
data PT_LOAD FLAGS(6);
}
 
SECTIONS {
. = 0x40001000;
 
.init ALIGN(0x1000) : SUBALIGN(0x1000) {
*(.init);
} :text
.text : {
*(.text);
*(.rodata*);
} :text
.data ALIGN(0x1000) : SUBALIGN(0x1000) {
*(.data);
} :data
.tdata : {
_tdata_start = .;
*(.tdata);
_tdata_end = .;
} :data
.tbss : {
_tbss_start = .;
*(.tbss);
_tbss_end = .;
} :data
_tls_alignment = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss));
.bss : {
*(COMMON);
*(.bss);
} :data
. = ALIGN(0x1000);
_heap = .;
/DISCARD/ : {
*(*);
}
 
}