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authorAl Viro <viro@ftp.linux.org.uk>2011-08-18 15:02:59 -0400
committerRichard Weinberger <richard@nod.at>2011-11-02 09:14:50 -0400
commit27f85f12639fe821375a69900d96e0fbcc1450bf (patch)
tree9ca3ae7471b85059cd2c458569d3fc117c2ca670 /arch/um/sys-x86_64
parent3655c4d3c4bc105a36080c665b7294f471b0a1de (diff)
um: merge arch/um/sys-{i386,x86_64}/asm
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um/sys-x86_64')
-rw-r--r--arch/um/sys-x86_64/asm/archparam.h16
-rw-r--r--arch/um/sys-x86_64/asm/checksum.h144
-rw-r--r--arch/um/sys-x86_64/asm/elf.h132
-rw-r--r--arch/um/sys-x86_64/asm/module.h20
-rw-r--r--arch/um/sys-x86_64/asm/processor.h56
-rw-r--r--arch/um/sys-x86_64/asm/ptrace.h72
-rw-r--r--arch/um/sys-x86_64/asm/vm-flags.h15
7 files changed, 0 insertions, 455 deletions
diff --git a/arch/um/sys-x86_64/asm/archparam.h b/arch/um/sys-x86_64/asm/archparam.h
deleted file mode 100644
index 6c083663b8d9..000000000000
--- a/arch/um/sys-x86_64/asm/archparam.h
+++ /dev/null
@@ -1,16 +0,0 @@
1/*
2 * Copyright 2003 PathScale, Inc.
3 *
4 * Licensed under the GPL
5 */
6
7#ifndef __UM_ARCHPARAM_X86_64_H
8#define __UM_ARCHPARAM_X86_64_H
9
10
11/* No user-accessible fixmap addresses, i.e. vsyscall */
12#define FIXADDR_USER_START 0
13#define FIXADDR_USER_END 0
14
15#endif
16
diff --git a/arch/um/sys-x86_64/asm/checksum.h b/arch/um/sys-x86_64/asm/checksum.h
deleted file mode 100644
index a5be9031ea85..000000000000
--- a/arch/um/sys-x86_64/asm/checksum.h
+++ /dev/null
@@ -1,144 +0,0 @@
1/*
2 * Licensed under the GPL
3 */
4
5#ifndef __UM_SYSDEP_CHECKSUM_H
6#define __UM_SYSDEP_CHECKSUM_H
7
8#include "linux/string.h"
9#include "linux/in6.h"
10#include "asm/uaccess.h"
11
12extern __wsum csum_partial(const void *buff, int len, __wsum sum);
13
14/*
15 * Note: when you get a NULL pointer exception here this means someone
16 * passed in an incorrect kernel address to one of these functions.
17 *
18 * If you use these functions directly please don't forget the
19 * access_ok().
20 */
21
22static __inline__
23__wsum csum_partial_copy_nocheck(const void *src, void *dst,
24 int len, __wsum sum)
25{
26 memcpy(dst, src, len);
27 return(csum_partial(dst, len, sum));
28}
29
30static __inline__
31__wsum csum_partial_copy_from_user(const void __user *src,
32 void *dst, int len, __wsum sum,
33 int *err_ptr)
34{
35 if (copy_from_user(dst, src, len)) {
36 *err_ptr = -EFAULT;
37 return (__force __wsum)-1;
38 }
39 return csum_partial(dst, len, sum);
40}
41
42/**
43 * csum_fold - Fold and invert a 32bit checksum.
44 * sum: 32bit unfolded sum
45 *
46 * Fold a 32bit running checksum to 16bit and invert it. This is usually
47 * the last step before putting a checksum into a packet.
48 * Make sure not to mix with 64bit checksums.
49 */
50static inline __sum16 csum_fold(__wsum sum)
51{
52 __asm__(
53 " addl %1,%0\n"
54 " adcl $0xffff,%0"
55 : "=r" (sum)
56 : "r" ((__force u32)sum << 16),
57 "0" ((__force u32)sum & 0xffff0000)
58 );
59 return (__force __sum16)(~(__force u32)sum >> 16);
60}
61
62/**
63 * csum_tcpup_nofold - Compute an IPv4 pseudo header checksum.
64 * @saddr: source address
65 * @daddr: destination address
66 * @len: length of packet
67 * @proto: ip protocol of packet
68 * @sum: initial sum to be added in (32bit unfolded)
69 *
70 * Returns the pseudo header checksum the input data. Result is
71 * 32bit unfolded.
72 */
73static inline __wsum
74csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
75 unsigned short proto, __wsum sum)
76{
77 asm(" addl %1, %0\n"
78 " adcl %2, %0\n"
79 " adcl %3, %0\n"
80 " adcl $0, %0\n"
81 : "=r" (sum)
82 : "g" (daddr), "g" (saddr), "g" ((len + proto) << 8), "0" (sum));
83 return sum;
84}
85
86/*
87 * computes the checksum of the TCP/UDP pseudo-header
88 * returns a 16-bit checksum, already complemented
89 */
90static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
91 unsigned short len,
92 unsigned short proto,
93 __wsum sum)
94{
95 return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
96}
97
98/**
99 * ip_fast_csum - Compute the IPv4 header checksum efficiently.
100 * iph: ipv4 header
101 * ihl: length of header / 4
102 */
103static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
104{
105 unsigned int sum;
106
107 asm( " movl (%1), %0\n"
108 " subl $4, %2\n"
109 " jbe 2f\n"
110 " addl 4(%1), %0\n"
111 " adcl 8(%1), %0\n"
112 " adcl 12(%1), %0\n"
113 "1: adcl 16(%1), %0\n"
114 " lea 4(%1), %1\n"
115 " decl %2\n"
116 " jne 1b\n"
117 " adcl $0, %0\n"
118 " movl %0, %2\n"
119 " shrl $16, %0\n"
120 " addw %w2, %w0\n"
121 " adcl $0, %0\n"
122 " notl %0\n"
123 "2:"
124 /* Since the input registers which are loaded with iph and ipl
125 are modified, we must also specify them as outputs, or gcc
126 will assume they contain their original values. */
127 : "=r" (sum), "=r" (iph), "=r" (ihl)
128 : "1" (iph), "2" (ihl)
129 : "memory");
130 return (__force __sum16)sum;
131}
132
133static inline unsigned add32_with_carry(unsigned a, unsigned b)
134{
135 asm("addl %2,%0\n\t"
136 "adcl $0,%0"
137 : "=r" (a)
138 : "0" (a), "r" (b));
139 return a;
140}
141
142extern __sum16 ip_compute_csum(const void *buff, int len);
143
144#endif
diff --git a/arch/um/sys-x86_64/asm/elf.h b/arch/um/sys-x86_64/asm/elf.h
deleted file mode 100644
index 11a2bfb38859..000000000000
--- a/arch/um/sys-x86_64/asm/elf.h
+++ /dev/null
@@ -1,132 +0,0 @@
1/*
2 * Copyright 2003 PathScale, Inc.
3 * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
4 *
5 * Licensed under the GPL
6 */
7#ifndef __UM_ELF_X86_64_H
8#define __UM_ELF_X86_64_H
9
10#include <asm/user.h>
11#include "skas.h"
12
13/* x86-64 relocation types, taken from asm-x86_64/elf.h */
14#define R_X86_64_NONE 0 /* No reloc */
15#define R_X86_64_64 1 /* Direct 64 bit */
16#define R_X86_64_PC32 2 /* PC relative 32 bit signed */
17#define R_X86_64_GOT32 3 /* 32 bit GOT entry */
18#define R_X86_64_PLT32 4 /* 32 bit PLT address */
19#define R_X86_64_COPY 5 /* Copy symbol at runtime */
20#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */
21#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */
22#define R_X86_64_RELATIVE 8 /* Adjust by program base */
23#define R_X86_64_GOTPCREL 9 /* 32 bit signed pc relative
24 offset to GOT */
25#define R_X86_64_32 10 /* Direct 32 bit zero extended */
26#define R_X86_64_32S 11 /* Direct 32 bit sign extended */
27#define R_X86_64_16 12 /* Direct 16 bit zero extended */
28#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */
29#define R_X86_64_8 14 /* Direct 8 bit sign extended */
30#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */
31
32#define R_X86_64_NUM 16
33
34typedef unsigned long elf_greg_t;
35
36#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
37typedef elf_greg_t elf_gregset_t[ELF_NGREG];
38
39typedef struct user_i387_struct elf_fpregset_t;
40
41/*
42 * This is used to ensure we don't load something for the wrong architecture.
43 */
44#define elf_check_arch(x) \
45 ((x)->e_machine == EM_X86_64)
46
47#define ELF_CLASS ELFCLASS64
48#define ELF_DATA ELFDATA2LSB
49#define ELF_ARCH EM_X86_64
50
51#define ELF_PLAT_INIT(regs, load_addr) do { \
52 PT_REGS_RBX(regs) = 0; \
53 PT_REGS_RCX(regs) = 0; \
54 PT_REGS_RDX(regs) = 0; \
55 PT_REGS_RSI(regs) = 0; \
56 PT_REGS_RDI(regs) = 0; \
57 PT_REGS_RBP(regs) = 0; \
58 PT_REGS_RAX(regs) = 0; \
59 PT_REGS_R8(regs) = 0; \
60 PT_REGS_R9(regs) = 0; \
61 PT_REGS_R10(regs) = 0; \
62 PT_REGS_R11(regs) = 0; \
63 PT_REGS_R12(regs) = 0; \
64 PT_REGS_R13(regs) = 0; \
65 PT_REGS_R14(regs) = 0; \
66 PT_REGS_R15(regs) = 0; \
67} while (0)
68
69#define ELF_CORE_COPY_REGS(pr_reg, _regs) \
70 (pr_reg)[0] = (_regs)->regs.gp[0]; \
71 (pr_reg)[1] = (_regs)->regs.gp[1]; \
72 (pr_reg)[2] = (_regs)->regs.gp[2]; \
73 (pr_reg)[3] = (_regs)->regs.gp[3]; \
74 (pr_reg)[4] = (_regs)->regs.gp[4]; \
75 (pr_reg)[5] = (_regs)->regs.gp[5]; \
76 (pr_reg)[6] = (_regs)->regs.gp[6]; \
77 (pr_reg)[7] = (_regs)->regs.gp[7]; \
78 (pr_reg)[8] = (_regs)->regs.gp[8]; \
79 (pr_reg)[9] = (_regs)->regs.gp[9]; \
80 (pr_reg)[10] = (_regs)->regs.gp[10]; \
81 (pr_reg)[11] = (_regs)->regs.gp[11]; \
82 (pr_reg)[12] = (_regs)->regs.gp[12]; \
83 (pr_reg)[13] = (_regs)->regs.gp[13]; \
84 (pr_reg)[14] = (_regs)->regs.gp[14]; \
85 (pr_reg)[15] = (_regs)->regs.gp[15]; \
86 (pr_reg)[16] = (_regs)->regs.gp[16]; \
87 (pr_reg)[17] = (_regs)->regs.gp[17]; \
88 (pr_reg)[18] = (_regs)->regs.gp[18]; \
89 (pr_reg)[19] = (_regs)->regs.gp[19]; \
90 (pr_reg)[20] = (_regs)->regs.gp[20]; \
91 (pr_reg)[21] = current->thread.arch.fs; \
92 (pr_reg)[22] = 0; \
93 (pr_reg)[23] = 0; \
94 (pr_reg)[24] = 0; \
95 (pr_reg)[25] = 0; \
96 (pr_reg)[26] = 0;
97
98#define task_pt_regs(t) (&(t)->thread.regs)
99
100struct task_struct;
101
102extern int elf_core_copy_fpregs(struct task_struct *t, elf_fpregset_t *fpu);
103
104#define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu)
105
106#ifdef TIF_IA32 /* XXX */
107#error XXX, indeed
108 clear_thread_flag(TIF_IA32);
109#endif
110
111#define ELF_EXEC_PAGESIZE 4096
112
113#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
114
115extern long elf_aux_hwcap;
116#define ELF_HWCAP (elf_aux_hwcap)
117
118#define ELF_PLATFORM "x86_64"
119
120#define SET_PERSONALITY(ex) do ; while(0)
121
122#define __HAVE_ARCH_GATE_AREA 1
123#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
124struct linux_binprm;
125extern int arch_setup_additional_pages(struct linux_binprm *bprm,
126 int uses_interp);
127
128extern unsigned long um_vdso_addr;
129#define AT_SYSINFO_EHDR 33
130#define ARCH_DLINFO NEW_AUX_ENT(AT_SYSINFO_EHDR, um_vdso_addr)
131
132#endif
diff --git a/arch/um/sys-x86_64/asm/module.h b/arch/um/sys-x86_64/asm/module.h
deleted file mode 100644
index 8eb79c2d07d5..000000000000
--- a/arch/um/sys-x86_64/asm/module.h
+++ /dev/null
@@ -1,20 +0,0 @@
1/*
2 * Copyright 2003 PathScale, Inc.
3 *
4 * Licensed under the GPL
5 */
6
7#ifndef __UM_MODULE_X86_64_H
8#define __UM_MODULE_X86_64_H
9
10/* UML is simple */
11struct mod_arch_specific
12{
13};
14
15#define Elf_Shdr Elf64_Shdr
16#define Elf_Sym Elf64_Sym
17#define Elf_Ehdr Elf64_Ehdr
18
19#endif
20
diff --git a/arch/um/sys-x86_64/asm/processor.h b/arch/um/sys-x86_64/asm/processor.h
deleted file mode 100644
index 875a26a62614..000000000000
--- a/arch/um/sys-x86_64/asm/processor.h
+++ /dev/null
@@ -1,56 +0,0 @@
1/*
2 * Copyright 2003 PathScale, Inc.
3 *
4 * Licensed under the GPL
5 */
6
7#ifndef __UM_PROCESSOR_X86_64_H
8#define __UM_PROCESSOR_X86_64_H
9
10/* include faultinfo structure */
11#include "sysdep/faultinfo.h"
12
13struct arch_thread {
14 unsigned long debugregs[8];
15 int debugregs_seq;
16 unsigned long fs;
17 struct faultinfo faultinfo;
18};
19
20/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
21static inline void rep_nop(void)
22{
23 __asm__ __volatile__("rep;nop": : :"memory");
24}
25
26#define cpu_relax() rep_nop()
27
28#define INIT_ARCH_THREAD { .debugregs = { [ 0 ... 7 ] = 0 }, \
29 .debugregs_seq = 0, \
30 .fs = 0, \
31 .faultinfo = { 0, 0, 0 } }
32
33static inline void arch_flush_thread(struct arch_thread *thread)
34{
35}
36
37static inline void arch_copy_thread(struct arch_thread *from,
38 struct arch_thread *to)
39{
40 to->fs = from->fs;
41}
42
43#include <asm/user.h>
44
45#define current_text_addr() \
46 ({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; })
47
48#define ARCH_IS_STACKGROW(address) \
49 (address + 128 >= UPT_SP(&current->thread.regs.regs))
50
51#define KSTK_EIP(tsk) KSTK_REG(tsk, RIP)
52#define KSTK_ESP(tsk) KSTK_REG(tsk, RSP)
53
54#include "asm/processor-generic.h"
55
56#endif
diff --git a/arch/um/sys-x86_64/asm/ptrace.h b/arch/um/sys-x86_64/asm/ptrace.h
deleted file mode 100644
index 83d8c473b905..000000000000
--- a/arch/um/sys-x86_64/asm/ptrace.h
+++ /dev/null
@@ -1,72 +0,0 @@
1/*
2 * Copyright 2003 PathScale, Inc.
3 *
4 * Licensed under the GPL
5 */
6
7#ifndef __UM_PTRACE_X86_64_H
8#define __UM_PTRACE_X86_64_H
9
10#include "linux/compiler.h"
11#include "asm/errno.h"
12
13#define __FRAME_OFFSETS /* Needed to get the R* macros */
14#include "asm/ptrace-generic.h"
15
16#define HOST_AUDIT_ARCH AUDIT_ARCH_X86_64
17
18#define PT_REGS_RBX(r) UPT_RBX(&(r)->regs)
19#define PT_REGS_RCX(r) UPT_RCX(&(r)->regs)
20#define PT_REGS_RDX(r) UPT_RDX(&(r)->regs)
21#define PT_REGS_RSI(r) UPT_RSI(&(r)->regs)
22#define PT_REGS_RDI(r) UPT_RDI(&(r)->regs)
23#define PT_REGS_RBP(r) UPT_RBP(&(r)->regs)
24#define PT_REGS_RAX(r) UPT_RAX(&(r)->regs)
25#define PT_REGS_R8(r) UPT_R8(&(r)->regs)
26#define PT_REGS_R9(r) UPT_R9(&(r)->regs)
27#define PT_REGS_R10(r) UPT_R10(&(r)->regs)
28#define PT_REGS_R11(r) UPT_R11(&(r)->regs)
29#define PT_REGS_R12(r) UPT_R12(&(r)->regs)
30#define PT_REGS_R13(r) UPT_R13(&(r)->regs)
31#define PT_REGS_R14(r) UPT_R14(&(r)->regs)
32#define PT_REGS_R15(r) UPT_R15(&(r)->regs)
33
34#define PT_REGS_FS(r) UPT_FS(&(r)->regs)
35#define PT_REGS_GS(r) UPT_GS(&(r)->regs)
36#define PT_REGS_DS(r) UPT_DS(&(r)->regs)
37#define PT_REGS_ES(r) UPT_ES(&(r)->regs)
38#define PT_REGS_SS(r) UPT_SS(&(r)->regs)
39#define PT_REGS_CS(r) UPT_CS(&(r)->regs)
40
41#define PT_REGS_ORIG_RAX(r) UPT_ORIG_RAX(&(r)->regs)
42#define PT_REGS_RIP(r) UPT_IP(&(r)->regs)
43#define PT_REGS_RSP(r) UPT_SP(&(r)->regs)
44
45#define PT_REGS_EFLAGS(r) UPT_EFLAGS(&(r)->regs)
46
47/* XXX */
48#define user_mode(r) UPT_IS_USER(&(r)->regs)
49#define PT_REGS_ORIG_SYSCALL(r) PT_REGS_RAX(r)
50#define PT_REGS_SYSCALL_RET(r) PT_REGS_RAX(r)
51
52#define PT_FIX_EXEC_STACK(sp) do ; while(0)
53
54#define profile_pc(regs) PT_REGS_IP(regs)
55
56struct user_desc;
57
58static inline int ptrace_get_thread_area(struct task_struct *child, int idx,
59 struct user_desc __user *user_desc)
60{
61 return -ENOSYS;
62}
63
64static inline int ptrace_set_thread_area(struct task_struct *child, int idx,
65 struct user_desc __user *user_desc)
66{
67 return -ENOSYS;
68}
69
70extern long arch_prctl(struct task_struct *task, int code,
71 unsigned long __user *addr);
72#endif
diff --git a/arch/um/sys-x86_64/asm/vm-flags.h b/arch/um/sys-x86_64/asm/vm-flags.h
deleted file mode 100644
index 3978e55132d2..000000000000
--- a/arch/um/sys-x86_64/asm/vm-flags.h
+++ /dev/null
@@ -1,15 +0,0 @@
1/*
2 * Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
3 * Copyright 2003 PathScale, Inc.
4 * Licensed under the GPL
5 */
6
7#ifndef __VM_FLAGS_X86_64_H
8#define __VM_FLAGS_X86_64_H
9
10#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
11 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
12#define VM_STACK_DEFAULT_FLAGS (VM_GROWSDOWN | VM_READ | VM_WRITE | \
13 VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
14
15#endif
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