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Add the contents of buildrom's 

packages/mkelfimage/mkelfimage-autoconf.patch
  packages/mkelfimage/mkelfImage-2.7-x86_64.patch

to our svn copy of mkelfimage.

Signed-off-by: Ward Vandewege <ward@gnu.org>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>

These are the original commit messages from the buildrom svn tree:

-----------------------------------------------------------------------
r61 | jcrouse | 2007-11-28 13:06:23 -0500 (Wed, 28 Nov 2007) | 9 lines

[BUILDROM]  Fixup mkelfimage

My patch makes it so all targets use vmlinux and 2.7.  Including
the mkelfimage patch from Yhinghai Lu.

Signed-off-by: Myles Watson <myles@pel.cs.byu.edu>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>

------------------------------------------------------------------------
r80 | jcrouse | 2007-12-10 13:56:40 -0500 (Mon, 10 Dec 2007) | 8 lines

[BUILDROM] Fix breakage in the new mkelfimage autoconf scripts

Whack the autoconf scripts in mkelfimage to allow us to pass our
stack protection flags in.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Acked-by: Corey Osgood <corey.osgood@gmail.com>

------------------------------------------------------------------------



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3473 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Ward Vandewege 2008-08-06 20:37:38 +00:00
parent a70872cfde
commit ebc92186cc
7 changed files with 2859 additions and 1922 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4409
util/mkelfImage/configure vendored
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File diff suppressed because it is too large Load Diff

6
util/mkelfImage/configure.ac
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@ -173,15 +173,15 @@ fi
dnl ---Output variables...
HOST_CC=$CC
HOST_CFLAGS='-O2 -Wall $(HOST_CPPFLAGS)'
HOST_CFLAGS="$HOST_CFLAGS -O2 -Wall \$(HOST_CPPFLAGS)"
dnl TODO: figure out how to set these appropriately for compilers other than gcc
I386_CFLAGS='-Os -ffreestanding -Wall -W -Wno-format $(I386_CPPFLAGS)'
I386_CFLAGS="$I386_CFLAGS -Os -ffreestanding -Wall -W -Wno-format \$(I386_CPPFLAGS)"
I386_ASFLAGS=''
I386_LDFLAGS='-static --warn-multiple-gp --warn-common'
dnl TODO: figure out how to set these appropriately for compilers other than gcc
IA64_CFLAGS='-Os -ffreestanding -Wall -W -Wno-format -fpic -mconstant-gp -mauto-pic -fno-unwind-tables $(IA64_CPPFLAGS)'
IA64_CFLAGS="$IA64_CFLAGS -Os -ffreestanding -Wall -W -Wno-format -fpic -mconstant-gp -mauto-pic -fno-unwind-tables \$(IA64_CPPFLAGS)"
IA64_ASFLAGS='-mconstant-gp -mauto-pic'
IA64_LDFLAGS='-static --warn-multiple-gp --warn-common'

5
util/mkelfImage/linux-i386/convert.h
View File

@ -3,6 +3,8 @@
#define CONVERTLOC 0x10000
#define REAL_MODE_DATA_LOC 0x20000
#define GDTLOC 0x21000
#define GDT64LOC 0x22000
#define PGTLOC 0x23000
#define DEFAULT_ROOT_DEV ((0x3<<8)| 0)
@ -18,10 +20,13 @@
struct image_parameters {
uint32_t convert_magic; /* a signature to verify mkelfImage was built properly */
uint32_t gdt_size;
uint32_t gdt64_size;
uint32_t pgt_size;
uint32_t bss_size;
uint16_t ramdisk_flags;
uint16_t root_dev;
uint32_t entry;
uint32_t switch_64;
uint32_t initrd_start;
uint32_t initrd_size;
uint8_t cmdline[CMDLINE_MAX];

2
util/mkelfImage/linux-i386/convert.lds
View File

@ -27,7 +27,7 @@ SECTIONS
*(.bss)
}
_end = . ;
bss_size = _end - _bss;
bss_sizex = _end - _bss;
/DISCARD/ : {
*(.comment)

119
util/mkelfImage/linux-i386/head.S
View File

@ -95,22 +95,113 @@ startup_32:
# Flag to indicate we are the bootstrap processor
xorl %ebx, %ebx
movl switch_64, %eax
cmp $1, %eax
jz switch_to_64
# Clear the unspecified registers for good measure
xorl %eax, %eax
xorl %ecx, %ecx
xorl %edx, %edx
xorl %edi, %edi
xorl %esp, %esp
xorl %ebp, %ebp
# do not clear esp, we still need to use lret later
# Jump to the linux kernel
ljmp $ PROT_CODE_SEG , $ 0x100000
pushl $PROT_CODE_SEG
movl entry, %eax
pushl %eax
lret
switch_to_64:
/* We need to switch to 64bit before use startup_64 entry go to kernel */
/*
* Prepare for entering 64 bit mode
*/
# Move the gdt64 where Linux will not smash it during decompression
movl %esi, %eax # save the real mode pointer
movl $gdt64, %esi
movl $GDT64LOC, %edi
movl $(gdt64_end - gdt64), %ecx
rep movsb
movl %eax, %esi
/* Load new GDT with the 64bit segments using 32bit descriptor */
lgdt gdt64
/* Enable PAE mode */
xorl %eax, %eax
btsl $5, %eax
movl %eax, %cr4
/*
* Build early 4G boot pagetable
*/
/* Initialize Page tables to 0*/
movl $PGTLOC, %edi
xorl %eax, %eax
movl $((4096*6)/4), %ecx
rep stosl
/* Build Level 4 */
movl $(PGTLOC + 0), %edi
leal 0x1007 (%edi), %eax
movl %eax, 0(%edi)
/* Build Level 3 */
movl $(PGTLOC + 0x1000), %edi
leal 0x1007(%edi), %eax
movl $4, %ecx
1: movl %eax, 0x00(%edi)
addl $0x00001000, %eax
addl $8, %edi
decl %ecx
jnz 1b
/* Build Level 2 */
movl $(PGTLOC + 0x2000), %edi
movl $0x00000183, %eax
movl $2048, %ecx
1: movl %eax, 0(%edi)
addl $0x00200000, %eax
addl $8, %edi
decl %ecx
jnz 1b
/* Enable the boot page tables */
movl $PGTLOC, %eax
movl %eax, %cr3
/* Enable Long mode in EFER (Extended Feature Enable Register) */
movl $0xc0000080, %ecx
rdmsr
btsl $8, %eax
wrmsr
/* Preparing for 64bit jmp */
pushl $PROT_CODE_SEG
movl entry, %eax
pushl %eax
/* Enter paged protected Mode, activating Long Mode */
xorl %eax, %eax
btsl $31, %eax
btsl $0, %eax
movl %eax, %cr0
/*
* At this point we're in long mode but in 32bit compatibility mode
* with EFER.LME = 1, CS.L = 0, CS.D = 1 (and in turn
* EFER.LMA = 1). Now we want to jump in 64bit mode, to do that we use
* the new gdt/idt that has __KERNEL_CS with CS.L = 1.
*/
lret
/* Routines to query the BIOS... */
/**************************************************************************
E820_MEMSIZE - Get a listing of memory regions
**************************************************************************/
@ -409,6 +500,7 @@ gdt:
.word 0x9200 # data read/write
.word 0x00CF # granularity = 4096, 386
# (+5th nibble of limit)
/*
* The layout of the per-CPU GDT under Linux:
*
@ -446,7 +538,14 @@ gdt:
*/
gdt_end:
gdt64:
.word gdt64_end - gdt64
.long GDT64LOC
.word 0
.quad 0x0000000000000000 /* NULL descriptor */
.quad 0x00af9a000000ffff /* __KERNEL_CS */
.quad 0x00cf92000000ffff /* __KERNEL_DS */
gdt64_end:
.section ".trailer", "a"
/* Constants set at build time, these are at the very end of my image */
@ -458,14 +557,20 @@ convert_magic:
.long CONVERT_MAGIC
gdt_size:
.long gdt_end - gdt
gdt64_size:
.long gdt64_end - gdt64
pgt_size:
.long 4096*6
bss_size:
.long bss_size
.long bss_sizex
ramdisk_flags:
.word 0
root_dev:
.word DEFAULT_ROOT_DEV
entry:
.long 0
switch_64:
.long 0
initrd_start:
.long 0
initrd_size:

214
util/mkelfImage/linux-i386/mkelf-linux-i386.c
View File

@ -19,13 +19,16 @@ struct kernel_info;
static void (*parse_kernel_type)(struct kernel_info *info, char *kernel_buf, size_t kernel_size);
static void parse_bzImage_kernel(struct kernel_info *info, char *kernel_buf, size_t kernel_size);
static void parse_elf32_kernel(struct kernel_info *info, char *kernel_buf, size_t kernel_size);
static void parse_elf64_kernel(struct kernel_info *info, char *kernel_buf, size_t kernel_size);
char *vmlinux_x86_64_probe(char *kernel_buf, off_t kernel_size);
char *vmlinux_i386_probe(char *kernel_buf, off_t kernel_size)
{
Elf32_Ehdr *ehdr;
Elf32_Phdr *phdr;
int i;
int hdr1, hdr2;
int phdrs;
ehdr = (Elf32_Ehdr *)kernel_buf;
if (
(ehdr->e_ident[EI_MAG0] != ELFMAG0) ||
@ -35,7 +38,8 @@ char *vmlinux_i386_probe(char *kernel_buf, off_t kernel_size)
return "No ELF signature found on kernel\n";
}
if (ehdr->e_ident[EI_CLASS] != ELFCLASS32) {
return "Not a 32bit ELF kernel\n";
return vmlinux_x86_64_probe(kernel_buf, kernel_size);
// return "Not a 32bit ELF kernel\n";
}
if (ehdr->e_ident[EI_DATA] != ELFDATA2LSB) {
return "Not a little endian ELF kernel\n";
@ -54,27 +58,64 @@ char *vmlinux_i386_probe(char *kernel_buf, off_t kernel_size)
return "Kernel uses bad program header size.\n";
}
phdr = (Elf32_Phdr *)(kernel_buf + le32_to_cpu(ehdr->e_phoff));
hdr1 = hdr2 = -1;
for(i = 0; i < le32_to_cpu(ehdr->e_phnum); i++) {
phdrs = 0;
for(i = 0; i < le16_to_cpu(ehdr->e_phnum); i++) {
if (le32_to_cpu(phdr[i].p_type) != PT_LOAD)
continue;
if (((hdr1 != -1) &&
((le32_to_cpu(phdr[hdr1].p_paddr) & 0xfffffff) != 0x100000)) ||
(hdr2 != -1)) {
return "Too many PT_LOAD segments to be a linux kernel\n";
phdrs++;
}
if (hdr1 == -1) {
hdr1 = i;
} else {
hdr2 = i;
}
}
if (hdr1 == -1) {
if (phdrs == 0) {
return "No PT_LOAD segments!\n";
}
parse_kernel_type = parse_elf32_kernel;
return 0;
}
char *vmlinux_x86_64_probe(char *kernel_buf, off_t kernel_size)
{
Elf64_Ehdr *ehdr;
Elf64_Phdr *phdr;
int i;
int phdrs = 0;
ehdr = (Elf64_Ehdr *)kernel_buf;
if (
(ehdr->e_ident[EI_MAG0] != ELFMAG0) ||
(ehdr->e_ident[EI_MAG1] != ELFMAG1) ||
(ehdr->e_ident[EI_MAG2] != ELFMAG2) ||
(ehdr->e_ident[EI_MAG3] != ELFMAG3)) {
return "No ELF signature found on kernel\n";
}
if (ehdr->e_ident[EI_CLASS] != ELFCLASS64) {
return "Not a 64bit ELF kernel\n";
}
if (ehdr->e_ident[EI_DATA] != ELFDATA2LSB) {
return "Not a little endian ELF kernel\n";
}
if (le16_to_cpu(ehdr->e_type) != ET_EXEC) {
return "Not an executable kernel\n";
}
if (le16_to_cpu(ehdr->e_machine) != EM_X86_64) {
return "Not an x86_64 kernel\n";
}
if ( (ehdr->e_ident[EI_VERSION] != EV_CURRENT) ||
(le32_to_cpu(ehdr->e_version) != EV_CURRENT)) {
return "Kernel not using ELF version 1.\n";
}
if (le16_to_cpu(ehdr->e_phentsize) != sizeof(*phdr)) {
return "Kernel uses bad program header size.\n";
}
phdr = (Elf64_Phdr *)(kernel_buf + le64_to_cpu(ehdr->e_phoff));
phdrs = 0;
for(i = 0; i < le16_to_cpu(ehdr->e_phnum); i++) {
if (le32_to_cpu(phdr[i].p_type) != PT_LOAD)
continue;
phdrs++;
}
if (phdrs == 0) {
return "No PT_LOAD segments!\n";
}
parse_kernel_type = parse_elf64_kernel;
return 0;
}
char *bzImage_i386_probe(char *kernel_buf, off_t kernel_size)
{
@ -118,17 +159,14 @@ char *linux_i386_probe(char *kernel_buf, off_t kernel_size)
struct kernel_info
{
void *kernel;
size_t filesz;
size_t memsz;
size_t paddr;
size_t vaddr;
void *kernel2;
size_t filesz2;
size_t memsz2;
size_t paddr2;
size_t vaddr2;
int phdrs;
void *kernel[4];
size_t filesz[4];
size_t memsz[4];
size_t paddr[4];
size_t vaddr[4];
size_t entry;
size_t switch_64;
char *version;
};
@ -137,43 +175,68 @@ static void parse_elf32_kernel(struct kernel_info *info, char *kernel_buf, size_
Elf32_Ehdr *ehdr;
Elf32_Phdr *phdr;
int i;
int hdr1, hdr2;
int phdrs;
ehdr = (Elf32_Ehdr *)kernel_buf;
phdr = (Elf32_Phdr *)(kernel_buf + ehdr->e_phoff);
hdr1 = hdr2 = -1;
phdrs = 0;
for(i = 0; i < le16_to_cpu(ehdr->e_phnum); i++) {
if (le32_to_cpu(phdr[i].p_type) != PT_LOAD)
continue;
if (hdr2 != -1) {
die("Too many PT_LOAD segments to be a linux kernel\n");
}
if (hdr1 == -1) {
hdr1 = i;
} else {
hdr2 = i;
}
}
if (hdr1 == -1) {
die("No PT_LOAD segments!\n");
}
info->kernel = kernel_buf + le32_to_cpu(phdr[hdr1].p_offset);
info->filesz = le32_to_cpu(phdr[hdr1].p_filesz);
info->memsz = le32_to_cpu(phdr[hdr1].p_memsz);
info->paddr = le32_to_cpu(phdr[hdr1].p_paddr) & 0xfffffff;
info->vaddr = le32_to_cpu(phdr[hdr1].p_vaddr);
if (hdr2 != -1) {
info->kernel2 = kernel_buf + le32_to_cpu(phdr[hdr2].p_offset);
info->filesz2 = le32_to_cpu(phdr[hdr2].p_filesz);
info->memsz2 = le32_to_cpu(phdr[hdr2].p_memsz);
info->paddr2 = le32_to_cpu(phdr[hdr2].p_paddr) & 0xfffffff;
info->vaddr2 = le32_to_cpu(phdr[hdr2].p_vaddr);
info->kernel[phdrs] = kernel_buf + le32_to_cpu(phdr[i].p_offset);
info->filesz[phdrs] = le32_to_cpu(phdr[i].p_filesz);
info->memsz[phdrs] = le32_to_cpu(phdr[i].p_memsz);
info->paddr[phdrs] = le32_to_cpu(phdr[i].p_paddr) & 0xfffffff;
info->vaddr[phdrs] = le32_to_cpu(phdr[i].p_vaddr);
phdrs++;
}
info->entry = 0x100000;
if(!phdrs)
die("We need at least one phdr\n");
info->phdrs = phdrs;
info->entry = le32_to_cpu(ehdr->e_entry);
info->switch_64 = 0; //not convert from elf64
info->version = "unknown";
}
static void parse_elf64_kernel(struct kernel_info *info, char *kernel_buf, size_t kernel_size)
{
Elf64_Ehdr *ehdr;
Elf64_Phdr *phdr;
int i;
int phdrs;
ehdr = (Elf64_Ehdr *)kernel_buf;
phdr = (Elf64_Phdr *)(kernel_buf + le64_to_cpu(ehdr->e_phoff));
phdrs = 0;
for(i = 0; i < le16_to_cpu(ehdr->e_phnum); i++) {
if (le32_to_cpu(phdr[i].p_type) != PT_LOAD)
continue;
info->kernel[phdrs] = kernel_buf + le64_to_cpu(phdr[i].p_offset);
info->filesz[phdrs] = le64_to_cpu(phdr[i].p_filesz);
info->memsz[phdrs] = le64_to_cpu(phdr[i].p_memsz);
info->paddr[phdrs] = le64_to_cpu(phdr[i].p_paddr) & 0xffffff;
info->vaddr[phdrs] = le64_to_cpu(phdr[i].p_vaddr);
phdrs++;
}
if(!phdrs)
die("We need at least one phdr\n");
info->phdrs = phdrs;
info->entry = le64_to_cpu(ehdr->e_entry);
#if 0
if (info->entry != info->paddr[0]) {
info->entry = info->paddr[0]; // we still have startup_32 there
info->switch_64 = 0; //not convert from elf64
} else
#endif
info->switch_64 = 1; //convert from elf64
info->version = "unknown";
}
static void parse_bzImage_kernel(struct kernel_info *info, char *kernel_buf, size_t kernel_size)
{
struct x86_linux_header *hdr;
@ -186,12 +249,14 @@ static void parse_bzImage_kernel(struct kernel_info *info, char *kernel_buf, siz
}
offset = 512 + (512 *setup_sects);
info->kernel = kernel_buf + offset;
info->filesz = kernel_size - offset;
info->memsz = 0x700000;
info->paddr = 0x100000;
info->vaddr = 0x100000;
info->entry = info->paddr;
info->kernel[0] = kernel_buf + offset;
info->filesz[0] = kernel_size - offset;
info->memsz[0] = 0x700000;
info->paddr[0] = 0x100000;
info->vaddr[0] = 0x100000;
info->phdrs = 1;
info->entry = info->paddr[0];
info->switch_64 = 0; //not convert from elf64, even later bzImage become elf64, it still includes startup_32
info->version = kernel_buf + 512 + le16_to_cpu(hdr->kver_addr);
}
@ -237,6 +302,7 @@ int linux_i386_mkelf(int argc, char **argv,
struct kernel_info kinfo;
struct image_parameters *params;
int index;
int i;
int opt;
static const struct option options[] = {
@ -310,7 +376,7 @@ int linux_i386_mkelf(int argc, char **argv,
/* Add a program header for the note section */
index = 4;
index += kinfo.kernel2 ? 1:0;
index += (kinfo.phdrs - 1);
index += ramdisk_size ? 1:0;
phdr = add_program_headers(ehdr, index);
@ -328,23 +394,24 @@ int linux_i386_mkelf(int argc, char **argv,
phdr[2].p_paddr = REAL_MODE_DATA_LOC;
phdr[2].p_vaddr = REAL_MODE_DATA_LOC;
phdr[2].p_filesz = 0;
if(!kinfo.switch_64)
phdr[2].p_memsz = (GDTLOC - REAL_MODE_DATA_LOC) + params->gdt_size;
else
phdr[2].p_memsz = (PGTLOC - REAL_MODE_DATA_LOC) + params->pgt_size;
phdr[2].p_data = 0;
phdr[3].p_paddr = kinfo.paddr;
phdr[3].p_vaddr = kinfo.vaddr;
phdr[3].p_filesz = kinfo.filesz;
phdr[3].p_memsz = kinfo.memsz;
phdr[3].p_data = kinfo.kernel;
if( (phdr[1].p_paddr + phdr[1].p_memsz) > phdr[2].p_paddr) {
die("Internal error: need to increase REAL_MODE_DATA_LOC !\n");
}
index = 4;
index = 3;
/* Put the second kernel frament if present */
if (kinfo.kernel2) {
phdr[index].p_paddr = kinfo.paddr2;
phdr[index].p_vaddr = kinfo.vaddr2;
phdr[index].p_filesz = kinfo.filesz2;
phdr[index].p_memsz = kinfo.memsz2;
phdr[index].p_data = kinfo.kernel2;
for(i=0;i<kinfo.phdrs;i++) {
phdr[index].p_paddr = kinfo.paddr[i];
phdr[index].p_vaddr = kinfo.vaddr[i];
phdr[index].p_filesz = kinfo.filesz[i];
phdr[index].p_memsz = kinfo.memsz[i];
phdr[index].p_data = kinfo.kernel[i];
index++;
}
@ -352,6 +419,10 @@ int linux_i386_mkelf(int argc, char **argv,
*/
params->initrd_start = params->initrd_size = 0;
if (ramdisk_size) {
if( (phdr[index-1].p_paddr + phdr[index-1].p_memsz) > ramdisk_base) {
die("need to increase increase ramdisk_base !\n");
}
phdr[index].p_paddr = ramdisk_base;
phdr[index].p_vaddr = ramdisk_base;
phdr[index].p_filesz = ramdisk_size;
@ -364,6 +435,7 @@ int linux_i386_mkelf(int argc, char **argv,
/* Set the start location */
params->entry = kinfo.entry;
params->switch_64 = kinfo.switch_64;
ehdr->e_entry = phdr[1].p_paddr;
/* Setup the elf notes */

2
util/mkelfImage/linux-ia64/mkelf-linux-ia64.c
View File

@ -81,7 +81,7 @@ static void parse_kernel(struct kernel_info *info,
phdr = (Elf64_Phdr *)(kernel_buf + le64_to_cpu(ehdr->e_phoff));
phdrs = 0;
for(i = 0; i < le16_to_cpu(ehdr->e_phnum); i++) {
if (le16_to_cpu(phdr[i].p_type) != PT_LOAD)
if (le32_to_cpu(phdr[i].p_type) != PT_LOAD)
continue;
phdrs++;
}