diff options
Diffstat (limited to 'util/cbfstool/tools')
| -rw-r--r-- | util/cbfstool/tools/cbfs-mkstage.c | 44 |
1 files changed, 34 insertions, 10 deletions
diff --git a/util/cbfstool/tools/cbfs-mkstage.c b/util/cbfstool/tools/cbfs-mkstage.c index b758851f2c..b85a8f99dc 100644 --- a/util/cbfstool/tools/cbfs-mkstage.c +++ b/util/cbfstool/tools/cbfs-mkstage.c @@ -29,6 +29,18 @@ #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 *)) { @@ -42,10 +54,22 @@ int parse_elf(unsigned char *input, unsigned char **output, 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 @@ -58,19 +82,19 @@ int parse_elf(unsigned char *input, unsigned char **output, 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; @@ -94,14 +118,14 @@ int parse_elf(unsigned char *input, unsigned char **output, 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 */ |