diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/x86_64/ia32/vsyscall.lds |
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/x86_64/ia32/vsyscall.lds')
-rw-r--r-- | arch/x86_64/ia32/vsyscall.lds | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/x86_64/ia32/vsyscall.lds b/arch/x86_64/ia32/vsyscall.lds new file mode 100644 index 000000000000..fa4b4dd4a9ff --- /dev/null +++ b/arch/x86_64/ia32/vsyscall.lds | |||
@@ -0,0 +1,77 @@ | |||
1 | /* | ||
2 | * Linker script for vsyscall DSO. The vsyscall page is an ELF shared | ||
3 | * object prelinked to its virtual address. This script controls its layout. | ||
4 | */ | ||
5 | |||
6 | /* This must match <asm/fixmap.h>. */ | ||
7 | VSYSCALL_BASE = 0xffffe000; | ||
8 | |||
9 | SECTIONS | ||
10 | { | ||
11 | . = VSYSCALL_BASE + SIZEOF_HEADERS; | ||
12 | |||
13 | .hash : { *(.hash) } :text | ||
14 | .dynsym : { *(.dynsym) } | ||
15 | .dynstr : { *(.dynstr) } | ||
16 | .gnu.version : { *(.gnu.version) } | ||
17 | .gnu.version_d : { *(.gnu.version_d) } | ||
18 | .gnu.version_r : { *(.gnu.version_r) } | ||
19 | |||
20 | /* This linker script is used both with -r and with -shared. | ||
21 | For the layouts to match, we need to skip more than enough | ||
22 | space for the dynamic symbol table et al. If this amount | ||
23 | is insufficient, ld -shared will barf. Just increase it here. */ | ||
24 | . = VSYSCALL_BASE + 0x400; | ||
25 | |||
26 | .text.vsyscall : { *(.text.vsyscall) } :text =0x90909090 | ||
27 | |||
28 | /* This is an 32bit object and we cannot easily get the offsets | ||
29 | into the 64bit kernel. Just hardcode them here. This assumes | ||
30 | that all the stubs don't need more than 0x100 bytes. */ | ||
31 | . = VSYSCALL_BASE + 0x500; | ||
32 | |||
33 | .text.sigreturn : { *(.text.sigreturn) } :text =0x90909090 | ||
34 | |||
35 | . = VSYSCALL_BASE + 0x600; | ||
36 | |||
37 | .text.rtsigreturn : { *(.text.rtsigreturn) } :text =0x90909090 | ||
38 | |||
39 | .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr | ||
40 | .eh_frame : { KEEP (*(.eh_frame)) } :text | ||
41 | .dynamic : { *(.dynamic) } :text :dynamic | ||
42 | .useless : { | ||
43 | *(.got.plt) *(.got) | ||
44 | *(.data .data.* .gnu.linkonce.d.*) | ||
45 | *(.dynbss) | ||
46 | *(.bss .bss.* .gnu.linkonce.b.*) | ||
47 | } :text | ||
48 | } | ||
49 | |||
50 | /* | ||
51 | * We must supply the ELF program headers explicitly to get just one | ||
52 | * PT_LOAD segment, and set the flags explicitly to make segments read-only. | ||
53 | */ | ||
54 | PHDRS | ||
55 | { | ||
56 | text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ | ||
57 | dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ | ||
58 | eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */ | ||
59 | } | ||
60 | |||
61 | /* | ||
62 | * This controls what symbols we export from the DSO. | ||
63 | */ | ||
64 | VERSION | ||
65 | { | ||
66 | LINUX_2.5 { | ||
67 | global: | ||
68 | __kernel_vsyscall; | ||
69 | __kernel_sigreturn; | ||
70 | __kernel_rt_sigreturn; | ||
71 | |||
72 | local: *; | ||
73 | }; | ||
74 | } | ||
75 | |||
76 | /* The ELF entry point can be used to set the AT_SYSINFO value. */ | ||
77 | ENTRY(__kernel_vsyscall); | ||