ia64/linux-2.6.18-xen.hg

view scripts/mod/mk_elfconfig.c @ 798:b02a90bf5bbc

ACPI: Backport missing part for T-State MSR support

Part of below kernel commit was missed while packporting T-State
support.

commit f79f06ab9f86d7203006d2ec8992ac80df36a34e
Author: Zhao Yakui <yakui.zhao@intel.com>
Date: Thu Nov 15 17:06:36 2007 +0800

ACPI: Enable MSR (FixedHW) support for T-States

Add throttling control via MSR when T-states uses
the FixHW Control Status registers.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

Signed-off-by: Wei Gang <gang.wei@intel.com>
author Keir Fraser <keir.fraser@citrix.com>
date Mon Mar 02 10:53:59 2009 +0000 (2009-03-02)
parents 831230e53067
children
line source
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
4 #include <elf.h>
6 int
7 main(int argc, char **argv)
8 {
9 unsigned char ei[EI_NIDENT];
10 union { short s; char c[2]; } endian_test;
12 if (argc != 2) {
13 fprintf(stderr, "Error: no arch\n");
14 }
15 if (fread(ei, 1, EI_NIDENT, stdin) != EI_NIDENT) {
16 fprintf(stderr, "Error: input truncated\n");
17 return 1;
18 }
19 if (memcmp(ei, ELFMAG, SELFMAG) != 0) {
20 fprintf(stderr, "Error: not ELF\n");
21 return 1;
22 }
23 switch (ei[EI_CLASS]) {
24 case ELFCLASS32:
25 printf("#define KERNEL_ELFCLASS ELFCLASS32\n");
26 break;
27 case ELFCLASS64:
28 printf("#define KERNEL_ELFCLASS ELFCLASS64\n");
29 break;
30 default:
31 exit(1);
32 }
33 switch (ei[EI_DATA]) {
34 case ELFDATA2LSB:
35 printf("#define KERNEL_ELFDATA ELFDATA2LSB\n");
36 break;
37 case ELFDATA2MSB:
38 printf("#define KERNEL_ELFDATA ELFDATA2MSB\n");
39 break;
40 default:
41 exit(1);
42 }
44 if (sizeof(unsigned long) == 4) {
45 printf("#define HOST_ELFCLASS ELFCLASS32\n");
46 } else if (sizeof(unsigned long) == 8) {
47 printf("#define HOST_ELFCLASS ELFCLASS64\n");
48 }
50 endian_test.s = 0x0102;
51 if (memcmp(endian_test.c, "\x01\x02", 2) == 0)
52 printf("#define HOST_ELFDATA ELFDATA2MSB\n");
53 else if (memcmp(endian_test.c, "\x02\x01", 2) == 0)
54 printf("#define HOST_ELFDATA ELFDATA2LSB\n");
55 else
56 exit(1);
58 if ((strcmp(argv[1], "v850") == 0) || (strcmp(argv[1], "h8300") == 0))
59 printf("#define MODULE_SYMBOL_PREFIX \"_\"\n");
60 else
61 printf("#define MODULE_SYMBOL_PREFIX \"\"\n");
63 return 0;
64 }