diff options
Diffstat (limited to 'arch/x86/boot/tools/build.c')
| -rw-r--r-- | arch/x86/boot/tools/build.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c index fdc60a0b3c2..4e9bd6bcafa 100644 --- a/arch/x86/boot/tools/build.c +++ b/arch/x86/boot/tools/build.c @@ -135,6 +135,9 @@ static void usage(void) int main(int argc, char ** argv) { +#ifdef CONFIG_EFI_STUB + unsigned int file_sz, pe_header; +#endif unsigned int i, sz, setup_sectors; int c; u32 sys_size; @@ -194,6 +197,42 @@ int main(int argc, char ** argv) buf[0x1f6] = sys_size >> 16; buf[0x1f7] = sys_size >> 24; +#ifdef CONFIG_EFI_STUB + file_sz = sz + i + ((sys_size * 16) - sz); + + pe_header = *(unsigned int *)&buf[0x3c]; + + /* Size of code */ + *(unsigned int *)&buf[pe_header + 0x1c] = file_sz; + + /* Size of image */ + *(unsigned int *)&buf[pe_header + 0x50] = file_sz; + +#ifdef CONFIG_X86_32 + /* Address of entry point */ + *(unsigned int *)&buf[pe_header + 0x28] = i; + + /* .text size */ + *(unsigned int *)&buf[pe_header + 0xb0] = file_sz; + + /* .text size of initialised data */ + *(unsigned int *)&buf[pe_header + 0xb8] = file_sz; +#else + /* + * Address of entry point. startup_32 is at the beginning and + * the 64-bit entry point (startup_64) is always 512 bytes + * after. + */ + *(unsigned int *)&buf[pe_header + 0x28] = i + 512; + + /* .text size */ + *(unsigned int *)&buf[pe_header + 0xc0] = file_sz; + + /* .text size of initialised data */ + *(unsigned int *)&buf[pe_header + 0xc8] = file_sz; +#endif /* CONFIG_X86_32 */ +#endif /* CONFIG_EFI_STUB */ + crc = partial_crc32(buf, i, crc); if (fwrite(buf, 1, i, stdout) != i) die("Writing setup failed"); |