CBFS uses sprintf, which requires vtxprintf, which requires (in the
current design) a nested function. That works on x86, but on PPC this
requires a trampoline. In the ROM stage, this is not available, so
remove the single use of sprintf and replace it with a direct string
handler - it's only used to fill in fixed-length hex values.
20090819-3-more-noreturns-in-romcc:
Mark two more functions in romcc as noreturn. Helps clang's scan-build a
bit
20090819-4-cbfsify-ppc:
Make PPC use CBFS. Support big endian ELF in cbfs-mkstage. Untested and
not complete yet.
20090819-5-fix-ppc-build:
The CBFS build system requires ROM_IMAGE_SIZE to have a somewhat
plausible value.
With fixes to tohex* functions as discussed on the list, and correct
function names.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4558
2b7e53f0-3cfb-0310-b3e9-
8179ed1497e1
if CONFIG_USE_FAILOVER_IMAGE
else
initobject /src/lib/cbfs.o
- initobject /src/console/vsprintf.o
initobject /src/lib/lzma.o
end
end
+uses CONFIG_CBFS
ldscript init/ldscript.lb
makerule coreboot.strip
action "cp $< $@"
end
+if CONFIG_CBFS
+ initobject /src/lib/cbfs.o
+ initobject /src/lib/lzma.o
+end
+
dir init
dir lib
dir boot
#include <board.h>
#include <sdram.h>
-
-extern unsigned _iseg[];
-extern unsigned _liseg[];
-extern unsigned _eliseg[];
-
-void (*payload)(void) = (void (*)(void))_iseg;
+#include <cbfs.h>
/*
* At this point we're running out of flash with our
void ppc_main(void)
{
- unsigned *from;
- unsigned *to;
+ void (*payload)(void);
/*
* very early board initialization
flush_dcache();
/*
- * Relocate payload (text & data) if necessary
+ * Relocate payload (text & data)
*/
- if (_liseg != _iseg) {
- from = _liseg;
- to = _iseg;
- while (from < _eliseg)
- *to++ = *from++;
- }
-
+ payload = cbfs_load_stage("fallback/coreboot_ram");
payload();
/* NOT REACHED */
return (void *) CBFS_SUBHEADER(file);
}
+static int tohex4(unsigned int c)
+{
+ return (c<=9)?(c+'0'):(c-10+'a');
+}
+
+static void tohex16(unsigned int val, char* dest)
+{
+ dest[0]=tohex4(val>>12);
+ dest[1]=tohex4((val>>8) & 0xf);
+ dest[2]=tohex4((val>>4) & 0xf);
+ dest[3]=tohex4(val & 0xf);
+}
+
void *cbfs_load_optionrom(u16 vendor, u16 device, void * dest)
{
- char name[17];
+ char name[17]="pciXXXX,XXXX.rom";
struct cbfs_optionrom *orom;
u8 *src;
- sprintf(name,"pci%04x,%04x.rom", vendor, device);
+ tohex16(vendor, name+3);
+ tohex16(device, name+8);
orom = (struct cbfs_optionrom *)
cbfs_find_file(name, CBFS_TYPE_OPTIONROM);
default CONFIG_AUTOBOOT_CMDLINE="hda1:/vmlinuz"
default CONFIG_ROM_SIZE=1048576
+default CONFIG_ROM_IMAGE_SIZE=160*1024
## Board has fixed size RAM
default CONFIG_EMBEDDED_RAM_SIZE=64*1024*1024
default CONFIG_AUTOBOOT_CMDLINE="hdc1:/vmlinuz"
# coreboot must fit into 128KB
-default CONFIG_ROM_IMAGE_SIZE=131072
-default CONFIG_ROM_SIZE={CONFIG_ROM_IMAGE_SIZE+CONFIG_PAYLOAD_SIZE}
+default CONFIG_ROM_IMAGE_SIZE=160*1024
+default CONFIG_ROM_SIZE=384*1024
default CONFIG_PAYLOAD_SIZE=262144
# Set stack and heap sizes (stage 2)
# ROM is 1Mb
default CONFIG_ROM_SIZE=1048576
+default CONFIG_ROM_IMAGE_SIZE=128*1024
# Set stack and heap sizes (stage 2)
default CONFIG_STACK_SIZE=0x10000
#include "common.h"
#include "../cbfs.h"
+unsigned int idemp(unsigned int x)
+{
+ return x;
+}
+
+unsigned int swap32(unsigned int x)
+{
+ return ((x>>24) | ((x>>8) & 0xff00) | ((x<<8) & 0xff0000) | (x<<24));
+}
+
+unsigned int (*elf32_to_native)(unsigned int)=idemp;
+
int parse_elf(unsigned char *input, unsigned char **output,
int mode, void (*compress) (char *, int, char *, int *))
{
struct cbfs_stage *stage;
unsigned int data_start, data_end, mem_end;
+ int elf_bigendian = 0;
+ int host_bigendian = 0;
+ if (ehdr->e_ident[EI_DATA]==ELFDATA2MSB) {
+ elf_bigendian = 1;
+ }
+ if ((unsigned int)"1234"==0x31323334) {
+ host_bigendian = 1;
+ }
+ if (elf_bigendian != host_bigendian) {
+ elf32_to_native = swap32;
+ }
+
headers = ehdr->e_phnum;
header = (char *)ehdr;
- phdr = (Elf32_Phdr *) & (header[ehdr->e_phoff]);
+ phdr = (Elf32_Phdr *) & header[elf32_to_native(ehdr->e_phoff)];
/* Now, regular headers - we only care about PT_LOAD headers,
* because thats what we're actually going to load
for (i = 0; i < headers; i++) {
unsigned int start, mend, rend;
- if (phdr[i].p_type != PT_LOAD)
+ if (elf32_to_native(phdr[i].p_type) != PT_LOAD)
continue;
/* Empty segments are never interesting */
- if (phdr[i].p_memsz == 0)
+ if (elf32_to_native(phdr[i].p_memsz) == 0)
continue;
/* BSS */
- start = phdr[i].p_paddr;
+ start = elf32_to_native(phdr[i].p_paddr);
- mend = start + phdr[i].p_memsz;
- rend = start + phdr[i].p_filesz;
+ mend = start + elf32_to_native(phdr[i].p_memsz);
+ rend = start + elf32_to_native(phdr[i].p_filesz);
if (start < data_start)
data_start = start;
for (i = 0; i < headers; i++) {
- if (phdr[i].p_type != PT_LOAD)
+ if (elf32_to_native(phdr[i].p_type) != PT_LOAD)
continue;
- if (phdr[i].p_memsz == 0)
+ if (elf32_to_native(phdr[i].p_memsz) == 0)
continue;
- memcpy(buffer + (phdr[i].p_paddr - data_start),
- &header[phdr[i].p_offset], phdr[i].p_filesz);
+ memcpy(buffer + (elf32_to_native(phdr[i].p_paddr) - data_start),
+ &header[elf32_to_native(phdr[i].p_offset)], elf32_to_native(phdr[i].p_filesz));
}
/* Now make the output buffer */
state->file->report_name, state->file->report_line, col);
}
-static void internal_error(struct compile_state *state, struct triple *ptr,
+static void __attribute__ ((noreturn)) internal_error(struct compile_state *state, struct triple *ptr,
const char *fmt, ...)
{
FILE *fp = state->errout;
-static void error(struct compile_state *state, struct triple *ptr,
+static void __attribute__ ((noreturn)) error(struct compile_state *state, struct triple *ptr,
const char *fmt, ...)
{
FILE *fp = state->errout;
projects / coreboot.git / commitdiff