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-rw-r--r--arch/um/sys-ppc/Makefile65
-rw-r--r--arch/um/sys-ppc/asm/archparam.h8
-rw-r--r--arch/um/sys-ppc/asm/elf.h51
-rw-r--r--arch/um/sys-ppc/asm/processor.h15
-rw-r--r--arch/um/sys-ppc/misc.S111
-rw-r--r--arch/um/sys-ppc/miscthings.c42
-rw-r--r--arch/um/sys-ppc/ptrace.c58
-rw-r--r--arch/um/sys-ppc/ptrace_user.c29
-rw-r--r--arch/um/sys-ppc/shared/sysdep/ptrace.h93
-rw-r--r--arch/um/sys-ppc/shared/sysdep/sigcontext.h52
-rw-r--r--arch/um/sys-ppc/shared/sysdep/skas_ptrace.h22
-rw-r--r--arch/um/sys-ppc/shared/sysdep/syscalls.h43
-rw-r--r--arch/um/sys-ppc/sigcontext.c4
-rw-r--r--arch/um/sys-ppc/sysrq.c31
14 files changed, 624 insertions, 0 deletions
diff --git a/arch/um/sys-ppc/Makefile b/arch/um/sys-ppc/Makefile
new file mode 100644
index 00000000..20d363bd
--- /dev/null
+++ b/arch/um/sys-ppc/Makefile
@@ -0,0 +1,65 @@
+OBJ = built-in.o
+
+.S.o:
+ $(CC) $(KBUILD_AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o
+
+OBJS = ptrace.o sigcontext.o checksum.o miscthings.o misc.o \
+ ptrace_user.o sysrq.o
+
+asflags-y := -DCONFIG_PPC32 -I. -I$(srctree)/arch/ppc/kernel
+
+all: $(OBJ)
+
+$(OBJ): $(OBJS)
+ rm -f $@
+ $(LD) $(LINKFLAGS) --start-group $^ --end-group -o $@
+
+ptrace_user.o: ptrace_user.c
+ $(CC) -D__KERNEL__ $(USER_CFLAGS) $(ccflags-y) -c -o $@ $<
+
+sigcontext.o: sigcontext.c
+ $(CC) $(USER_CFLAGS) $(ccflags-y) -c -o $@ $<
+
+checksum.S:
+ rm -f $@
+ ln -s $(srctree)/arch/ppc/lib/$@ $@
+
+mk_defs.c:
+ rm -f $@
+ ln -s $(srctree)/arch/ppc/kernel/$@ $@
+
+ppc_defs.head:
+ rm -f $@
+ ln -s $(srctree)/arch/ppc/kernel/$@ $@
+
+ppc_defs.h: mk_defs.c ppc_defs.head \
+ $(srctree)/include/asm-ppc/mmu.h \
+ $(srctree)/include/asm-ppc/processor.h \
+ $(srctree)/include/asm-ppc/pgtable.h \
+ $(srctree)/include/asm-ppc/ptrace.h
+# $(CC) $(CFLAGS) -S mk_defs.c
+ cp ppc_defs.head ppc_defs.h
+# for bk, this way we can write to the file even if it's not checked out
+ echo '#define THREAD 608' >> ppc_defs.h
+ echo '#define PT_REGS 8' >> ppc_defs.h
+ echo '#define CLONE_VM 256' >> ppc_defs.h
+# chmod u+w ppc_defs.h
+# grep '^#define' mk_defs.s >> ppc_defs.h
+# rm mk_defs.s
+
+# the asm link is horrible, and breaks the other targets. This is also
+# not going to work with parallel makes.
+
+checksum.o: checksum.S
+ rm -f asm
+ ln -s $(srctree)/include/asm-ppc asm
+ $(CC) $(asflags-y) $(KBUILD_AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o
+ rm -f asm
+
+misc.o: misc.S ppc_defs.h
+ rm -f asm
+ ln -s $(srctree)/include/asm-ppc asm
+ $(CC) $(asflags-y) $(KBUILD_AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o
+ rm -f asm
+
+clean-files := $(OBJS) ppc_defs.h checksum.S mk_defs.c
diff --git a/arch/um/sys-ppc/asm/archparam.h b/arch/um/sys-ppc/asm/archparam.h
new file mode 100644
index 00000000..4269d8a3
--- /dev/null
+++ b/arch/um/sys-ppc/asm/archparam.h
@@ -0,0 +1,8 @@
+#ifndef __UM_ARCHPARAM_PPC_H
+#define __UM_ARCHPARAM_PPC_H
+
+/********* Bits for asm-um/string.h **********/
+
+#define __HAVE_ARCH_STRRCHR
+
+#endif
diff --git a/arch/um/sys-ppc/asm/elf.h b/arch/um/sys-ppc/asm/elf.h
new file mode 100644
index 00000000..8aacaf56
--- /dev/null
+++ b/arch/um/sys-ppc/asm/elf.h
@@ -0,0 +1,51 @@
+#ifndef __UM_ELF_PPC_H
+#define __UM_ELF_PPC_H
+
+
+extern long elf_aux_hwcap;
+#define ELF_HWCAP (elf_aux_hwcap)
+
+#define SET_PERSONALITY(ex) do ; while(0)
+
+#define ELF_EXEC_PAGESIZE 4096
+
+#define elf_check_arch(x) (1)
+
+#ifdef CONFIG_64BIT
+#define ELF_CLASS ELFCLASS64
+#else
+#define ELF_CLASS ELFCLASS32
+#endif
+
+#define R_386_NONE 0
+#define R_386_32 1
+#define R_386_PC32 2
+#define R_386_GOT32 3
+#define R_386_PLT32 4
+#define R_386_COPY 5
+#define R_386_GLOB_DAT 6
+#define R_386_JMP_SLOT 7
+#define R_386_RELATIVE 8
+#define R_386_GOTOFF 9
+#define R_386_GOTPC 10
+#define R_386_NUM 11
+
+#define ELF_PLATFORM (0)
+
+#define ELF_ET_DYN_BASE (0x08000000)
+
+/* the following stolen from asm-ppc/elf.h */
+#define ELF_NGREG 48 /* includes nip, msr, lr, etc. */
+#define ELF_NFPREG 33 /* includes fpscr */
+/* General registers */
+typedef unsigned long elf_greg_t;
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Floating point registers */
+typedef double elf_fpreg_t;
+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+
+#define ELF_DATA ELFDATA2MSB
+#define ELF_ARCH EM_PPC
+
+#endif
diff --git a/arch/um/sys-ppc/asm/processor.h b/arch/um/sys-ppc/asm/processor.h
new file mode 100644
index 00000000..95932315
--- /dev/null
+++ b/arch/um/sys-ppc/asm/processor.h
@@ -0,0 +1,15 @@
+#ifndef __UM_PROCESSOR_PPC_H
+#define __UM_PROCESSOR_PPC_H
+
+#if defined(__ASSEMBLY__)
+
+#define CONFIG_PPC_MULTIPLATFORM
+#include "arch/processor.h"
+
+#else
+
+#include "asm/processor-generic.h"
+
+#endif
+
+#endif
diff --git a/arch/um/sys-ppc/misc.S b/arch/um/sys-ppc/misc.S
new file mode 100644
index 00000000..1364b7da
--- /dev/null
+++ b/arch/um/sys-ppc/misc.S
@@ -0,0 +1,111 @@
+/*
+ * This file contains miscellaneous low-level functions.
+ * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ * Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras.
+ *
+ * A couple of functions stolen from arch/ppc/kernel/misc.S for UML
+ * by Chris Emerson.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <asm/processor.h>
+#include "ppc_asm.h"
+
+#if defined(CONFIG_4xx) || defined(CONFIG_8xx)
+#define CACHE_LINE_SIZE 16
+#define LG_CACHE_LINE_SIZE 4
+#define MAX_COPY_PREFETCH 1
+#else
+#define CACHE_LINE_SIZE 32
+#define LG_CACHE_LINE_SIZE 5
+#define MAX_COPY_PREFETCH 4
+#endif /* CONFIG_4xx || CONFIG_8xx */
+
+ .text
+
+/*
+ * Clear a page using the dcbz instruction, which doesn't cause any
+ * memory traffic (except to write out any cache lines which get
+ * displaced). This only works on cacheable memory.
+ */
+_GLOBAL(clear_page)
+ li r0,4096/CACHE_LINE_SIZE
+ mtctr r0
+#ifdef CONFIG_8xx
+ li r4, 0
+1: stw r4, 0(r3)
+ stw r4, 4(r3)
+ stw r4, 8(r3)
+ stw r4, 12(r3)
+#else
+1: dcbz 0,r3
+#endif
+ addi r3,r3,CACHE_LINE_SIZE
+ bdnz 1b
+ blr
+
+/*
+ * Copy a whole page. We use the dcbz instruction on the destination
+ * to reduce memory traffic (it eliminates the unnecessary reads of
+ * the destination into cache). This requires that the destination
+ * is cacheable.
+ */
+#define COPY_16_BYTES \
+ lwz r6,4(r4); \
+ lwz r7,8(r4); \
+ lwz r8,12(r4); \
+ lwzu r9,16(r4); \
+ stw r6,4(r3); \
+ stw r7,8(r3); \
+ stw r8,12(r3); \
+ stwu r9,16(r3)
+
+_GLOBAL(copy_page)
+ addi r3,r3,-4
+ addi r4,r4,-4
+ li r5,4
+
+#ifndef CONFIG_8xx
+#if MAX_COPY_PREFETCH > 1
+ li r0,MAX_COPY_PREFETCH
+ li r11,4
+ mtctr r0
+11: dcbt r11,r4
+ addi r11,r11,CACHE_LINE_SIZE
+ bdnz 11b
+#else /* MAX_COPY_PREFETCH == 1 */
+ dcbt r5,r4
+ li r11,CACHE_LINE_SIZE+4
+#endif /* MAX_COPY_PREFETCH */
+#endif /* CONFIG_8xx */
+
+ li r0,4096/CACHE_LINE_SIZE
+ mtctr r0
+1:
+#ifndef CONFIG_8xx
+ dcbt r11,r4
+ dcbz r5,r3
+#endif
+ COPY_16_BYTES
+#if CACHE_LINE_SIZE >= 32
+ COPY_16_BYTES
+#if CACHE_LINE_SIZE >= 64
+ COPY_16_BYTES
+ COPY_16_BYTES
+#if CACHE_LINE_SIZE >= 128
+ COPY_16_BYTES
+ COPY_16_BYTES
+ COPY_16_BYTES
+ COPY_16_BYTES
+#endif
+#endif
+#endif
+ bdnz 1b
+ blr
diff --git a/arch/um/sys-ppc/miscthings.c b/arch/um/sys-ppc/miscthings.c
new file mode 100644
index 00000000..1c11aed9
--- /dev/null
+++ b/arch/um/sys-ppc/miscthings.c
@@ -0,0 +1,42 @@
+#include "linux/threads.h"
+#include "linux/stddef.h" // for NULL
+#include "linux/elf.h" // for AT_NULL
+
+/* The following function nicked from arch/ppc/kernel/process.c and
+ * adapted slightly */
+/*
+ * XXX ld.so expects the auxiliary table to start on
+ * a 16-byte boundary, so we have to find it and
+ * move it up. :-(
+ */
+void shove_aux_table(unsigned long sp)
+{
+ int argc;
+ char *p;
+ unsigned long e;
+ unsigned long aux_start, offset;
+
+ argc = *(int *)sp;
+ sp += sizeof(int) + (argc + 1) * sizeof(char *);
+ /* skip over the environment pointers */
+ do {
+ p = *(char **)sp;
+ sp += sizeof(char *);
+ } while (p != NULL);
+ aux_start = sp;
+ /* skip to the end of the auxiliary table */
+ do {
+ e = *(unsigned long *)sp;
+ sp += 2 * sizeof(unsigned long);
+ } while (e != AT_NULL);
+ offset = ((aux_start + 15) & ~15) - aux_start;
+ if (offset != 0) {
+ do {
+ sp -= sizeof(unsigned long);
+ e = *(unsigned long *)sp;
+ *(unsigned long *)(sp + offset) = e;
+ } while (sp > aux_start);
+ }
+}
+/* END stuff taken from arch/ppc/kernel/process.c */
+
diff --git a/arch/um/sys-ppc/ptrace.c b/arch/um/sys-ppc/ptrace.c
new file mode 100644
index 00000000..66ef1552
--- /dev/null
+++ b/arch/um/sys-ppc/ptrace.c
@@ -0,0 +1,58 @@
+#include "linux/sched.h"
+#include "asm/ptrace.h"
+
+int putreg(struct task_struct *child, unsigned long regno,
+ unsigned long value)
+{
+ child->thread.process_regs.regs[regno >> 2] = value;
+ return 0;
+}
+
+int poke_user(struct task_struct *child, long addr, long data)
+{
+ if ((addr & 3) || addr < 0)
+ return -EIO;
+
+ if (addr < MAX_REG_OFFSET)
+ return putreg(child, addr, data);
+
+ else if((addr >= offsetof(struct user, u_debugreg[0])) &&
+ (addr <= offsetof(struct user, u_debugreg[7]))){
+ addr -= offsetof(struct user, u_debugreg[0]);
+ addr = addr >> 2;
+ if((addr == 4) || (addr == 5)) return -EIO;
+ child->thread.arch.debugregs[addr] = data;
+ return 0;
+ }
+ return -EIO;
+}
+
+unsigned long getreg(struct task_struct *child, unsigned long regno)
+{
+ unsigned long retval = ~0UL;
+
+ retval &= child->thread.process_regs.regs[regno >> 2];
+ return retval;
+}
+
+int peek_user(struct task_struct *child, long addr, long data)
+{
+ /* read the word at location addr in the USER area. */
+ unsigned long tmp;
+
+ if ((addr & 3) || addr < 0)
+ return -EIO;
+
+ tmp = 0; /* Default return condition */
+ if(addr < MAX_REG_OFFSET){
+ tmp = getreg(child, addr);
+ }
+ else if((addr >= offsetof(struct user, u_debugreg[0])) &&
+ (addr <= offsetof(struct user, u_debugreg[7]))){
+ addr -= offsetof(struct user, u_debugreg[0]);
+ addr = addr >> 2;
+ tmp = child->thread.arch.debugregs[addr];
+ }
+ return put_user(tmp, (unsigned long *) data);
+}
+
diff --git a/arch/um/sys-ppc/ptrace_user.c b/arch/um/sys-ppc/ptrace_user.c
new file mode 100644
index 00000000..224d2403
--- /dev/null
+++ b/arch/um/sys-ppc/ptrace_user.c
@@ -0,0 +1,29 @@
+#include <errno.h>
+#include <asm/ptrace.h>
+#include "sysdep/ptrace.h"
+
+int ptrace_getregs(long pid, unsigned long *regs_out)
+{
+ int i;
+ for (i=0; i < sizeof(struct sys_pt_regs)/sizeof(PPC_REG); ++i) {
+ errno = 0;
+ regs_out->regs[i] = ptrace(PTRACE_PEEKUSR, pid, i*4, 0);
+ if (errno) {
+ return -errno;
+ }
+ }
+ return 0;
+}
+
+int ptrace_setregs(long pid, unsigned long *regs_in)
+{
+ int i;
+ for (i=0; i < sizeof(struct sys_pt_regs)/sizeof(PPC_REG); ++i) {
+ if (i != 34 /* FIXME: PT_ORIG_R3 */ && i <= PT_MQ) {
+ if (ptrace(PTRACE_POKEUSR, pid, i*4, regs_in->regs[i]) < 0) {
+ return -errno;
+ }
+ }
+ }
+ return 0;
+}
diff --git a/arch/um/sys-ppc/shared/sysdep/ptrace.h b/arch/um/sys-ppc/shared/sysdep/ptrace.h
new file mode 100644
index 00000000..0e3230e9
--- /dev/null
+++ b/arch/um/sys-ppc/shared/sysdep/ptrace.h
@@ -0,0 +1,93 @@
+/*
+ * Licensed under the GPL
+ */
+
+#ifndef __SYS_PTRACE_PPC_H
+#define __SYS_PTRACE_PPC_H
+
+#include "linux/types.h"
+
+/* the following taken from <asm-ppc/ptrace.h> */
+
+#ifdef CONFIG_PPC64
+#define PPC_REG unsigned long /*long*/
+#else
+#define PPC_REG unsigned long
+#endif
+struct sys_pt_regs_s {
+ PPC_REG gpr[32];
+ PPC_REG nip;
+ PPC_REG msr;
+ PPC_REG orig_gpr3; /* Used for restarting system calls */
+ PPC_REG ctr;
+ PPC_REG link;
+ PPC_REG xer;
+ PPC_REG ccr;
+ PPC_REG mq; /* 601 only (not used at present) */
+ /* Used on APUS to hold IPL value. */
+ PPC_REG trap; /* Reason for being here */
+ PPC_REG dar; /* Fault registers */
+ PPC_REG dsisr;
+ PPC_REG result; /* Result of a system call */
+};
+
+#define NUM_REGS (sizeof(struct sys_pt_regs_s) / sizeof(PPC_REG))
+
+struct sys_pt_regs {
+ PPC_REG regs[sizeof(struct sys_pt_regs_s) / sizeof(PPC_REG)];
+};
+
+#define UM_MAX_REG (PT_FPR0)
+#define UM_MAX_REG_OFFSET (UM_MAX_REG * sizeof(PPC_REG))
+
+#define EMPTY_REGS { { [ 0 ... NUM_REGS - 1] = 0 } }
+
+#define UM_REG(r, n) ((r)->regs[n])
+
+#define UM_SYSCALL_RET(r) UM_REG(r, PT_R3)
+#define UM_SP(r) UM_REG(r, PT_R1)
+#define UM_IP(r) UM_REG(r, PT_NIP)
+#define UM_ELF_ZERO(r) UM_REG(r, PT_FPSCR)
+#define UM_SYSCALL_NR(r) UM_REG(r, PT_R0)
+#define UM_SYSCALL_ARG1(r) UM_REG(r, PT_ORIG_R3)
+#define UM_SYSCALL_ARG2(r) UM_REG(r, PT_R4)
+#define UM_SYSCALL_ARG3(r) UM_REG(r, PT_R5)
+#define UM_SYSCALL_ARG4(r) UM_REG(r, PT_R6)
+#define UM_SYSCALL_ARG5(r) UM_REG(r, PT_R7)
+#define UM_SYSCALL_ARG6(r) UM_REG(r, PT_R8)
+
+#define UM_SYSCALL_NR_OFFSET (PT_R0 * sizeof(PPC_REG))
+#define UM_SYSCALL_RET_OFFSET (PT_R3 * sizeof(PPC_REG))
+#define UM_SYSCALL_ARG1_OFFSET (PT_R3 * sizeof(PPC_REG))
+#define UM_SYSCALL_ARG2_OFFSET (PT_R4 * sizeof(PPC_REG))
+#define UM_SYSCALL_ARG3_OFFSET (PT_R5 * sizeof(PPC_REG))
+#define UM_SYSCALL_ARG4_OFFSET (PT_R6 * sizeof(PPC_REG))
+#define UM_SYSCALL_ARG5_OFFSET (PT_R7 * sizeof(PPC_REG))
+#define UM_SYSCALL_ARG6_OFFSET (PT_R8 * sizeof(PPC_REG))
+#define UM_SP_OFFSET (PT_R1 * sizeof(PPC_REG))
+#define UM_IP_OFFSET (PT_NIP * sizeof(PPC_REG))
+#define UM_ELF_ZERO_OFFSET (PT_R3 * sizeof(PPC_REG))
+
+#define UM_SET_SYSCALL_RETURN(_regs, result) \
+do { \
+ if (result < 0) { \
+ (_regs)->regs[PT_CCR] |= 0x10000000; \
+ UM_SYSCALL_RET((_regs)) = -result; \
+ } else { \
+ UM_SYSCALL_RET((_regs)) = result; \
+ } \
+} while(0)
+
+extern void shove_aux_table(unsigned long sp);
+#define UM_FIX_EXEC_STACK(sp) shove_aux_table(sp);
+
+/* These aren't actually defined. The undefs are just to make sure
+ * everyone's clear on the concept.
+ */
+#undef UML_HAVE_GETREGS
+#undef UML_HAVE_GETFPREGS
+#undef UML_HAVE_SETREGS
+#undef UML_HAVE_SETFPREGS
+
+#endif
+
diff --git a/arch/um/sys-ppc/shared/sysdep/sigcontext.h b/arch/um/sys-ppc/shared/sysdep/sigcontext.h
new file mode 100644
index 00000000..b7286f0a
--- /dev/null
+++ b/arch/um/sys-ppc/shared/sysdep/sigcontext.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __SYS_SIGCONTEXT_PPC_H
+#define __SYS_SIGCONTEXT_PPC_H
+
+#define DSISR_WRITE 0x02000000
+
+#define SC_FAULT_ADDR(sc) ({ \
+ struct sigcontext *_sc = (sc); \
+ long retval = -1; \
+ switch (_sc->regs->trap) { \
+ case 0x300: \
+ /* data exception */ \
+ retval = _sc->regs->dar; \
+ break; \
+ case 0x400: \
+ /* instruction exception */ \
+ retval = _sc->regs->nip; \
+ break; \
+ default: \
+ panic("SC_FAULT_ADDR: unhandled trap type\n"); \
+ } \
+ retval; \
+ })
+
+#define SC_FAULT_WRITE(sc) ({ \
+ struct sigcontext *_sc = (sc); \
+ long retval = -1; \
+ switch (_sc->regs->trap) { \
+ case 0x300: \
+ /* data exception */ \
+ retval = !!(_sc->regs->dsisr & DSISR_WRITE); \
+ break; \
+ case 0x400: \
+ /* instruction exception: not a write */ \
+ retval = 0; \
+ break; \
+ default: \
+ panic("SC_FAULT_ADDR: unhandled trap type\n"); \
+ } \
+ retval; \
+ })
+
+#define SC_IP(sc) ((sc)->regs->nip)
+#define SC_SP(sc) ((sc)->regs->gpr[1])
+#define SEGV_IS_FIXABLE(sc) (1)
+
+#endif
+
diff --git a/arch/um/sys-ppc/shared/sysdep/skas_ptrace.h b/arch/um/sys-ppc/shared/sysdep/skas_ptrace.h
new file mode 100644
index 00000000..d9fbbac1
--- /dev/null
+++ b/arch/um/sys-ppc/shared/sysdep/skas_ptrace.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __SYSDEP_PPC_SKAS_PTRACE_H
+#define __SYSDEP_PPC_SKAS_PTRACE_H
+
+struct ptrace_faultinfo {
+ int is_write;
+ unsigned long addr;
+};
+
+struct ptrace_ldt {
+ int func;
+ void *ptr;
+ unsigned long bytecount;
+};
+
+#define PTRACE_LDT 54
+
+#endif
diff --git a/arch/um/sys-ppc/shared/sysdep/syscalls.h b/arch/um/sys-ppc/shared/sysdep/syscalls.h
new file mode 100644
index 00000000..1ff81552
--- /dev/null
+++ b/arch/um/sys-ppc/shared/sysdep/syscalls.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+typedef long syscall_handler_t(unsigned long arg1, unsigned long arg2,
+ unsigned long arg3, unsigned long arg4,
+ unsigned long arg5, unsigned long arg6);
+
+#define EXECUTE_SYSCALL(syscall, regs) \
+ (*sys_call_table[syscall])(UM_SYSCALL_ARG1(&regs), \
+ UM_SYSCALL_ARG2(&regs), \
+ UM_SYSCALL_ARG3(&regs), \
+ UM_SYSCALL_ARG4(&regs), \
+ UM_SYSCALL_ARG5(&regs), \
+ UM_SYSCALL_ARG6(&regs))
+
+extern syscall_handler_t sys_mincore;
+extern syscall_handler_t sys_madvise;
+
+/* old_mmap needs the correct prototype since syscall_kern.c includes
+ * this file.
+ */
+int old_mmap(unsigned long addr, unsigned long len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, unsigned long offset);
+
+#define ARCH_SYSCALLS \
+ [ __NR_modify_ldt ] = sys_ni_syscall, \
+ [ __NR_pciconfig_read ] = sys_ni_syscall, \
+ [ __NR_pciconfig_write ] = sys_ni_syscall, \
+ [ __NR_pciconfig_iobase ] = sys_ni_syscall, \
+ [ __NR_pivot_root ] = sys_ni_syscall, \
+ [ __NR_multiplexer ] = sys_ni_syscall, \
+ [ __NR_mmap ] = old_mmap, \
+ [ __NR_madvise ] = sys_madvise, \
+ [ __NR_mincore ] = sys_mincore, \
+ [ __NR_iopl ] = (syscall_handler_t *) sys_ni_syscall, \
+ [ __NR_utimes ] = (syscall_handler_t *) sys_utimes, \
+ [ __NR_fadvise64 ] = (syscall_handler_t *) sys_fadvise64,
+
+#define LAST_ARCH_SYSCALL __NR_fadvise64
+
diff --git a/arch/um/sys-ppc/sigcontext.c b/arch/um/sys-ppc/sigcontext.c
new file mode 100644
index 00000000..40694d0f
--- /dev/null
+++ b/arch/um/sys-ppc/sigcontext.c
@@ -0,0 +1,4 @@
+#include "asm/ptrace.h"
+#include "asm/sigcontext.h"
+#include "sysdep/ptrace.h"
+
diff --git a/arch/um/sys-ppc/sysrq.c b/arch/um/sys-ppc/sysrq.c
new file mode 100644
index 00000000..2f816f1a
--- /dev/null
+++ b/arch/um/sys-ppc/sysrq.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2001 Chris Emerson (cemerson@chiark.greenend.org.uk)
+ * Licensed under the GPL
+ */
+
+#include "linux/kernel.h"
+#include "linux/smp.h"
+#include "asm/ptrace.h"
+#include "sysrq.h"
+
+void show_regs(struct pt_regs_subarch *regs)
+{
+ printk("\n");
+ printk("show_regs(): insert regs here.\n");
+#if 0
+ printk("\n");
+ printk("EIP: %04x:[<%08lx>] CPU: %d",0xffff & regs->xcs, regs->eip,
+ smp_processor_id());
+ if (regs->xcs & 3)
+ printk(" ESP: %04x:%08lx",0xffff & regs->xss, regs->esp);
+ printk(" EFLAGS: %08lx\n", regs->eflags);
+ printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
+ regs->eax, regs->ebx, regs->ecx, regs->edx);
+ printk("ESI: %08lx EDI: %08lx EBP: %08lx",
+ regs->esi, regs->edi, regs->ebp);
+ printk(" DS: %04x ES: %04x\n",
+ 0xffff & regs->xds, 0xffff & regs->xes);
+#endif
+
+ show_trace(current, &regs->gpr[1]);
+}
generated by cgit (git 2.34.1) at 2025-01-11 22:04:59 +0000