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/i386/kernel/vsyscall.lds.S |
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/i386/kernel/vsyscall.lds.S')
-rw-r--r-- | arch/i386/kernel/vsyscall.lds.S | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/i386/kernel/vsyscall.lds.S b/arch/i386/kernel/vsyscall.lds.S new file mode 100644 index 000000000000..3a8329d6536e --- /dev/null +++ b/arch/i386/kernel/vsyscall.lds.S | |||
@@ -0,0 +1,65 @@ | |||
1 | /* | ||
2 | * Linker script for vsyscall DSO. The vsyscall page is an ELF shared | ||
3 | * object prelinked to its virtual address, and with only one read-only | ||
4 | * segment (that fits in one page). This script controls its layout. | ||
5 | */ | ||
6 | #include <asm/asm_offsets.h> | ||
7 | |||
8 | SECTIONS | ||
9 | { | ||
10 | . = VSYSCALL_BASE + SIZEOF_HEADERS; | ||
11 | |||
12 | .hash : { *(.hash) } :text | ||
13 | .dynsym : { *(.dynsym) } | ||
14 | .dynstr : { *(.dynstr) } | ||
15 | .gnu.version : { *(.gnu.version) } | ||
16 | .gnu.version_d : { *(.gnu.version_d) } | ||
17 | .gnu.version_r : { *(.gnu.version_r) } | ||
18 | |||
19 | /* This linker script is used both with -r and with -shared. | ||
20 | For the layouts to match, we need to skip more than enough | ||
21 | space for the dynamic symbol table et al. If this amount | ||
22 | is insufficient, ld -shared will barf. Just increase it here. */ | ||
23 | . = VSYSCALL_BASE + 0x400; | ||
24 | |||
25 | .text : { *(.text) } :text =0x90909090 | ||
26 | |||
27 | .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr | ||
28 | .eh_frame : { KEEP (*(.eh_frame)) } :text | ||
29 | .dynamic : { *(.dynamic) } :text :dynamic | ||
30 | .useless : { | ||
31 | *(.got.plt) *(.got) | ||
32 | *(.data .data.* .gnu.linkonce.d.*) | ||
33 | *(.dynbss) | ||
34 | *(.bss .bss.* .gnu.linkonce.b.*) | ||
35 | } :text | ||
36 | } | ||
37 | |||
38 | /* | ||
39 | * We must supply the ELF program headers explicitly to get just one | ||
40 | * PT_LOAD segment, and set the flags explicitly to make segments read-only. | ||
41 | */ | ||
42 | PHDRS | ||
43 | { | ||
44 | text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ | ||
45 | dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ | ||
46 | eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */ | ||
47 | } | ||
48 | |||
49 | /* | ||
50 | * This controls what symbols we export from the DSO. | ||
51 | */ | ||
52 | VERSION | ||
53 | { | ||
54 | LINUX_2.5 { | ||
55 | global: | ||
56 | __kernel_vsyscall; | ||
57 | __kernel_sigreturn; | ||
58 | __kernel_rt_sigreturn; | ||
59 | |||
60 | local: *; | ||
61 | }; | ||
62 | } | ||
63 | |||
64 | /* The ELF entry point can be used to set the AT_SYSINFO value. */ | ||
65 | ENTRY(__kernel_vsyscall); | ||