diff options
Diffstat (limited to 'include/asm-parisc/compat_rt_sigframe.h')
-rw-r--r-- | include/asm-parisc/compat_rt_sigframe.h | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/include/asm-parisc/compat_rt_sigframe.h b/include/asm-parisc/compat_rt_sigframe.h deleted file mode 100644 index 81bec28bdc4..00000000000 --- a/include/asm-parisc/compat_rt_sigframe.h +++ /dev/null | |||
@@ -1,50 +0,0 @@ | |||
1 | #include<linux/compat.h> | ||
2 | #include<linux/compat_siginfo.h> | ||
3 | #include<asm/compat_ucontext.h> | ||
4 | |||
5 | #ifndef _ASM_PARISC_COMPAT_RT_SIGFRAME_H | ||
6 | #define _ASM_PARISC_COMPAT_RT_SIGFRAME_H | ||
7 | |||
8 | /* In a deft move of uber-hackery, we decide to carry the top half of all | ||
9 | * 64-bit registers in a non-portable, non-ABI, hidden structure. | ||
10 | * Userspace can read the hidden structure if it *wants* but is never | ||
11 | * guaranteed to be in the same place. Infact the uc_sigmask from the | ||
12 | * ucontext_t structure may push the hidden register file downards | ||
13 | */ | ||
14 | struct compat_regfile { | ||
15 | /* Upper half of all the 64-bit registers that were truncated | ||
16 | on a copy to a 32-bit userspace */ | ||
17 | compat_int_t rf_gr[32]; | ||
18 | compat_int_t rf_iasq[2]; | ||
19 | compat_int_t rf_iaoq[2]; | ||
20 | compat_int_t rf_sar; | ||
21 | }; | ||
22 | |||
23 | #define COMPAT_SIGRETURN_TRAMP 4 | ||
24 | #define COMPAT_SIGRESTARTBLOCK_TRAMP 5 | ||
25 | #define COMPAT_TRAMP_SIZE (COMPAT_SIGRETURN_TRAMP + COMPAT_SIGRESTARTBLOCK_TRAMP) | ||
26 | |||
27 | struct compat_rt_sigframe { | ||
28 | /* XXX: Must match trampoline size in arch/parisc/kernel/signal.c | ||
29 | Secondary to that it must protect the ERESTART_RESTARTBLOCK | ||
30 | trampoline we left on the stack (we were bad and didn't | ||
31 | change sp so we could run really fast.) */ | ||
32 | compat_uint_t tramp[COMPAT_TRAMP_SIZE]; | ||
33 | compat_siginfo_t info; | ||
34 | struct compat_ucontext uc; | ||
35 | /* Hidden location of truncated registers, *must* be last. */ | ||
36 | struct compat_regfile regs; | ||
37 | }; | ||
38 | |||
39 | /* | ||
40 | * The 32-bit ABI wants at least 48 bytes for a function call frame: | ||
41 | * 16 bytes for arg0-arg3, and 32 bytes for magic (the only part of | ||
42 | * which Linux/parisc uses is sp-20 for the saved return pointer...) | ||
43 | * Then, the stack pointer must be rounded to a cache line (64 bytes). | ||
44 | */ | ||
45 | #define SIGFRAME32 64 | ||
46 | #define FUNCTIONCALLFRAME32 48 | ||
47 | #define PARISC_RT_SIGFRAME_SIZE32 \ | ||
48 | (((sizeof(struct compat_rt_sigframe) + FUNCTIONCALLFRAME32) + SIGFRAME32) & -SIGFRAME32) | ||
49 | |||
50 | #endif | ||