diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/um/sys-ppc/miscthings.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/um/sys-ppc/miscthings.c')
-rw-r--r-- | arch/um/sys-ppc/miscthings.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/um/sys-ppc/miscthings.c b/arch/um/sys-ppc/miscthings.c new file mode 100644 index 000000000000..373061c50129 --- /dev/null +++ b/arch/um/sys-ppc/miscthings.c | |||
@@ -0,0 +1,53 @@ | |||
1 | #include "linux/threads.h" | ||
2 | #include "linux/stddef.h" // for NULL | ||
3 | #include "linux/elf.h" // for AT_NULL | ||
4 | |||
5 | /* The following function nicked from arch/ppc/kernel/process.c and | ||
6 | * adapted slightly */ | ||
7 | /* | ||
8 | * XXX ld.so expects the auxiliary table to start on | ||
9 | * a 16-byte boundary, so we have to find it and | ||
10 | * move it up. :-( | ||
11 | */ | ||
12 | void shove_aux_table(unsigned long sp) | ||
13 | { | ||
14 | int argc; | ||
15 | char *p; | ||
16 | unsigned long e; | ||
17 | unsigned long aux_start, offset; | ||
18 | |||
19 | argc = *(int *)sp; | ||
20 | sp += sizeof(int) + (argc + 1) * sizeof(char *); | ||
21 | /* skip over the environment pointers */ | ||
22 | do { | ||
23 | p = *(char **)sp; | ||
24 | sp += sizeof(char *); | ||
25 | } while (p != NULL); | ||
26 | aux_start = sp; | ||
27 | /* skip to the end of the auxiliary table */ | ||
28 | do { | ||
29 | e = *(unsigned long *)sp; | ||
30 | sp += 2 * sizeof(unsigned long); | ||
31 | } while (e != AT_NULL); | ||
32 | offset = ((aux_start + 15) & ~15) - aux_start; | ||
33 | if (offset != 0) { | ||
34 | do { | ||
35 | sp -= sizeof(unsigned long); | ||
36 | e = *(unsigned long *)sp; | ||
37 | *(unsigned long *)(sp + offset) = e; | ||
38 | } while (sp > aux_start); | ||
39 | } | ||
40 | } | ||
41 | /* END stuff taken from arch/ppc/kernel/process.c */ | ||
42 | |||
43 | |||
44 | /* | ||
45 | * Overrides for Emacs so that we follow Linus's tabbing style. | ||
46 | * Emacs will notice this stuff at the end of the file and automatically | ||
47 | * adjust the settings for this buffer only. This must remain at the end | ||
48 | * of the file. | ||
49 | * --------------------------------------------------------------------------- | ||
50 | * Local variables: | ||
51 | * c-file-style: "linux" | ||
52 | * End: | ||
53 | */ | ||