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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/um/include/sysdep-ppc
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/include/sysdep-ppc')
-rw-r--r--arch/um/include/sysdep-ppc/ptrace.h104
-rw-r--r--arch/um/include/sysdep-ppc/sigcontext.h62
-rw-r--r--arch/um/include/sysdep-ppc/syscalls.h53
3 files changed, 219 insertions, 0 deletions
diff --git a/arch/um/include/sysdep-ppc/ptrace.h b/arch/um/include/sysdep-ppc/ptrace.h
new file mode 100644
index 000000000000..8a27353733a9
--- /dev/null
+++ b/arch/um/include/sysdep-ppc/ptrace.h
@@ -0,0 +1,104 @@
1/*
2 * Licensed under the GPL
3 */
4
5#ifndef __SYS_PTRACE_PPC_H
6#define __SYS_PTRACE_PPC_H
7
8#include "linux/config.h"
9#include "linux/types.h"
10
11/* the following taken from <asm-ppc/ptrace.h> */
12
13#ifdef CONFIG_PPC64
14#define PPC_REG unsigned long /*long*/
15#else
16#define PPC_REG unsigned long
17#endif
18struct sys_pt_regs_s {
19 PPC_REG gpr[32];
20 PPC_REG nip;
21 PPC_REG msr;
22 PPC_REG orig_gpr3; /* Used for restarting system calls */
23 PPC_REG ctr;
24 PPC_REG link;
25 PPC_REG xer;
26 PPC_REG ccr;
27 PPC_REG mq; /* 601 only (not used at present) */
28 /* Used on APUS to hold IPL value. */
29 PPC_REG trap; /* Reason for being here */
30 PPC_REG dar; /* Fault registers */
31 PPC_REG dsisr;
32 PPC_REG result; /* Result of a system call */
33};
34
35#define NUM_REGS (sizeof(struct sys_pt_regs_s) / sizeof(PPC_REG))
36
37struct sys_pt_regs {
38 PPC_REG regs[sizeof(struct sys_pt_regs_s) / sizeof(PPC_REG)];
39};
40
41#define UM_MAX_REG (PT_FPR0)
42#define UM_MAX_REG_OFFSET (UM_MAX_REG * sizeof(PPC_REG))
43
44#define EMPTY_REGS { { [ 0 ... NUM_REGS - 1] = 0 } }
45
46#define UM_REG(r, n) ((r)->regs[n])
47
48#define UM_SYSCALL_RET(r) UM_REG(r, PT_R3)
49#define UM_SP(r) UM_REG(r, PT_R1)
50#define UM_IP(r) UM_REG(r, PT_NIP)
51#define UM_ELF_ZERO(r) UM_REG(r, PT_FPSCR)
52#define UM_SYSCALL_NR(r) UM_REG(r, PT_R0)
53#define UM_SYSCALL_ARG1(r) UM_REG(r, PT_ORIG_R3)
54#define UM_SYSCALL_ARG2(r) UM_REG(r, PT_R4)
55#define UM_SYSCALL_ARG3(r) UM_REG(r, PT_R5)
56#define UM_SYSCALL_ARG4(r) UM_REG(r, PT_R6)
57#define UM_SYSCALL_ARG5(r) UM_REG(r, PT_R7)
58#define UM_SYSCALL_ARG6(r) UM_REG(r, PT_R8)
59
60#define UM_SYSCALL_NR_OFFSET (PT_R0 * sizeof(PPC_REG))
61#define UM_SYSCALL_RET_OFFSET (PT_R3 * sizeof(PPC_REG))
62#define UM_SYSCALL_ARG1_OFFSET (PT_R3 * sizeof(PPC_REG))
63#define UM_SYSCALL_ARG2_OFFSET (PT_R4 * sizeof(PPC_REG))
64#define UM_SYSCALL_ARG3_OFFSET (PT_R5 * sizeof(PPC_REG))
65#define UM_SYSCALL_ARG4_OFFSET (PT_R6 * sizeof(PPC_REG))
66#define UM_SYSCALL_ARG5_OFFSET (PT_R7 * sizeof(PPC_REG))
67#define UM_SYSCALL_ARG6_OFFSET (PT_R8 * sizeof(PPC_REG))
68#define UM_SP_OFFSET (PT_R1 * sizeof(PPC_REG))
69#define UM_IP_OFFSET (PT_NIP * sizeof(PPC_REG))
70#define UM_ELF_ZERO_OFFSET (PT_R3 * sizeof(PPC_REG))
71
72#define UM_SET_SYSCALL_RETURN(_regs, result) \
73do { \
74 if (result < 0) { \
75 (_regs)->regs[PT_CCR] |= 0x10000000; \
76 UM_SYSCALL_RET((_regs)) = -result; \
77 } else { \
78 UM_SYSCALL_RET((_regs)) = result; \
79 } \
80} while(0)
81
82extern void shove_aux_table(unsigned long sp);
83#define UM_FIX_EXEC_STACK(sp) shove_aux_table(sp);
84
85/* These aren't actually defined. The undefs are just to make sure
86 * everyone's clear on the concept.
87 */
88#undef UML_HAVE_GETREGS
89#undef UML_HAVE_GETFPREGS
90#undef UML_HAVE_SETREGS
91#undef UML_HAVE_SETFPREGS
92
93#endif
94
95/*
96 * Overrides for Emacs so that we follow Linus's tabbing style.
97 * Emacs will notice this stuff at the end of the file and automatically
98 * adjust the settings for this buffer only. This must remain at the end
99 * of the file.
100 * ---------------------------------------------------------------------------
101 * Local variables:
102 * c-file-style: "linux"
103 * End:
104 */
diff --git a/arch/um/include/sysdep-ppc/sigcontext.h b/arch/um/include/sysdep-ppc/sigcontext.h
new file mode 100644
index 000000000000..f20d965de9c7
--- /dev/null
+++ b/arch/um/include/sysdep-ppc/sigcontext.h
@@ -0,0 +1,62 @@
1/*
2 * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
4 */
5
6#ifndef __SYS_SIGCONTEXT_PPC_H
7#define __SYS_SIGCONTEXT_PPC_H
8
9#define DSISR_WRITE 0x02000000
10
11#define SC_FAULT_ADDR(sc) ({ \
12 struct sigcontext *_sc = (sc); \
13 long retval = -1; \
14 switch (_sc->regs->trap) { \
15 case 0x300: \
16 /* data exception */ \
17 retval = _sc->regs->dar; \
18 break; \
19 case 0x400: \
20 /* instruction exception */ \
21 retval = _sc->regs->nip; \
22 break; \
23 default: \
24 panic("SC_FAULT_ADDR: unhandled trap type\n"); \
25 } \
26 retval; \
27 })
28
29#define SC_FAULT_WRITE(sc) ({ \
30 struct sigcontext *_sc = (sc); \
31 long retval = -1; \
32 switch (_sc->regs->trap) { \
33 case 0x300: \
34 /* data exception */ \
35 retval = !!(_sc->regs->dsisr & DSISR_WRITE); \
36 break; \
37 case 0x400: \
38 /* instruction exception: not a write */ \
39 retval = 0; \
40 break; \
41 default: \
42 panic("SC_FAULT_ADDR: unhandled trap type\n"); \
43 } \
44 retval; \
45 })
46
47#define SC_IP(sc) ((sc)->regs->nip)
48#define SC_SP(sc) ((sc)->regs->gpr[1])
49#define SEGV_IS_FIXABLE(sc) (1)
50
51#endif
52
53/*
54 * Overrides for Emacs so that we follow Linus's tabbing style.
55 * Emacs will notice this stuff at the end of the file and automatically
56 * adjust the settings for this buffer only. This must remain at the end
57 * of the file.
58 * ---------------------------------------------------------------------------
59 * Local variables:
60 * c-file-style: "linux"
61 * End:
62 */
diff --git a/arch/um/include/sysdep-ppc/syscalls.h b/arch/um/include/sysdep-ppc/syscalls.h
new file mode 100644
index 000000000000..679df351e19b
--- /dev/null
+++ b/arch/um/include/sysdep-ppc/syscalls.h
@@ -0,0 +1,53 @@
1/*
2 * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
4 */
5
6typedef long syscall_handler_t(unsigned long arg1, unsigned long arg2,
7 unsigned long arg3, unsigned long arg4,
8 unsigned long arg5, unsigned long arg6);
9
10#define EXECUTE_SYSCALL(syscall, regs) \
11 (*sys_call_table[syscall])(UM_SYSCALL_ARG1(&regs), \
12 UM_SYSCALL_ARG2(&regs), \
13 UM_SYSCALL_ARG3(&regs), \
14 UM_SYSCALL_ARG4(&regs), \
15 UM_SYSCALL_ARG5(&regs), \
16 UM_SYSCALL_ARG6(&regs))
17
18extern syscall_handler_t sys_mincore;
19extern syscall_handler_t sys_madvise;
20
21/* old_mmap needs the correct prototype since syscall_kern.c includes
22 * this file.
23 */
24int old_mmap(unsigned long addr, unsigned long len,
25 unsigned long prot, unsigned long flags,
26 unsigned long fd, unsigned long offset);
27
28#define ARCH_SYSCALLS \
29 [ __NR_modify_ldt ] = sys_ni_syscall, \
30 [ __NR_pciconfig_read ] = sys_ni_syscall, \
31 [ __NR_pciconfig_write ] = sys_ni_syscall, \
32 [ __NR_pciconfig_iobase ] = sys_ni_syscall, \
33 [ __NR_pivot_root ] = sys_ni_syscall, \
34 [ __NR_multiplexer ] = sys_ni_syscall, \
35 [ __NR_mmap ] = old_mmap, \
36 [ __NR_madvise ] = sys_madvise, \
37 [ __NR_mincore ] = sys_mincore, \
38 [ __NR_iopl ] = (syscall_handler_t *) sys_ni_syscall, \
39 [ __NR_utimes ] = (syscall_handler_t *) sys_utimes, \
40 [ __NR_fadvise64 ] = (syscall_handler_t *) sys_fadvise64,
41
42#define LAST_ARCH_SYSCALL __NR_fadvise64
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 */
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-04 16:39:24 -0400