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-rw-r--r--arch/um/include/sysdep-x86_64/checksum.h26
-rw-r--r--arch/um/include/sysdep-x86_64/faultinfo.h29
-rw-r--r--arch/um/include/sysdep-x86_64/ptrace.h78
-rw-r--r--arch/um/include/sysdep-x86_64/sigcontext.h15
-rw-r--r--arch/um/include/sysdep-x86_64/signal.h2
-rw-r--r--arch/um/include/sysdep-x86_64/skas_ptrace.h22
6 files changed, 102 insertions, 70 deletions
diff --git a/arch/um/include/sysdep-x86_64/checksum.h b/arch/um/include/sysdep-x86_64/checksum.h
index 572c6c19be33..ea97005af694 100644
--- a/arch/um/include/sysdep-x86_64/checksum.h
+++ b/arch/um/include/sysdep-x86_64/checksum.h
@@ -9,8 +9,6 @@
#include "linux/in6.h"
#include "asm/uaccess.h"
-extern unsigned int csum_partial_copy_from(const unsigned char *src, unsigned char *dst, int len,
- int sum, int *err_ptr);
extern unsigned csum_partial(const unsigned char *buff, unsigned len,
unsigned sum);
@@ -31,10 +29,15 @@ unsigned int csum_partial_copy_nocheck(const unsigned char *src, unsigned char *
}
static __inline__
-unsigned int csum_partial_copy_from_user(const unsigned char *src, unsigned char *dst,
- int len, int sum, int *err_ptr)
+unsigned int csum_partial_copy_from_user(const unsigned char *src,
+ unsigned char *dst, int len, int sum,
+ int *err_ptr)
{
- return csum_partial_copy_from(src, dst, len, sum, err_ptr);
+ if(copy_from_user(dst, src, len)){
+ *err_ptr = -EFAULT;
+ return(-1);
+ }
+ return csum_partial(dst, len, sum);
}
/**
@@ -137,15 +140,6 @@ static inline unsigned add32_with_carry(unsigned a, unsigned b)
return a;
}
-#endif
+extern unsigned short ip_compute_csum(unsigned char * buff, int len);
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+#endif
diff --git a/arch/um/include/sysdep-x86_64/faultinfo.h b/arch/um/include/sysdep-x86_64/faultinfo.h
new file mode 100644
index 000000000000..cb917b0d5660
--- /dev/null
+++ b/arch/um/include/sysdep-x86_64/faultinfo.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2004 Fujitsu Siemens Computers GmbH
+ * Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
+ * Licensed under the GPL
+ */
+
+#ifndef __FAULTINFO_X86_64_H
+#define __FAULTINFO_X86_64_H
+
+/* this structure contains the full arch-specific faultinfo
+ * from the traps.
+ * On i386, ptrace_faultinfo unfortunately doesn't provide
+ * all the info, since trap_no is missing.
+ * All common elements are defined at the same position in
+ * both structures, thus making it easy to copy the
+ * contents without knowledge about the structure elements.
+ */
+struct faultinfo {
+ int error_code; /* in ptrace_faultinfo misleadingly called is_write */
+ unsigned long cr2; /* in ptrace_faultinfo called addr */
+ int trap_no; /* missing in ptrace_faultinfo */
+};
+
+#define FAULT_WRITE(fi) ((fi).error_code & 2)
+#define FAULT_ADDRESS(fi) ((fi).cr2)
+
+#define PTRACE_FULL_FAULTINFO 1
+
+#endif
diff --git a/arch/um/include/sysdep-x86_64/ptrace.h b/arch/um/include/sysdep-x86_64/ptrace.h
index 915c82daffbd..be8acd5efd97 100644
--- a/arch/um/include/sysdep-x86_64/ptrace.h
+++ b/arch/um/include/sysdep-x86_64/ptrace.h
@@ -9,6 +9,7 @@
#include "uml-config.h"
#include "user_constants.h"
+#include "sysdep/faultinfo.h"
#define MAX_REG_OFFSET (UM_FRAME_SIZE)
#define MAX_REG_NR ((MAX_REG_OFFSET) / sizeof(unsigned long))
@@ -83,6 +84,7 @@ union uml_pt_regs {
long syscall;
unsigned long orig_rax;
void *sc;
+ struct faultinfo faultinfo;
} tt;
#endif
#ifdef UML_CONFIG_MODE_SKAS
@@ -90,9 +92,7 @@ union uml_pt_regs {
/* XXX */
unsigned long regs[27];
unsigned long fp[65];
- unsigned long fault_addr;
- unsigned long fault_type;
- unsigned long trap_type;
+ struct faultinfo faultinfo;
long syscall;
int is_user;
} skas;
@@ -135,6 +135,7 @@ extern int mode_tt;
__CHOOSE_MODE(SC_EFLAGS(UPT_SC(r)), REGS_EFLAGS((r)->skas.regs))
#define UPT_SC(r) ((r)->tt.sc)
#define UPT_SYSCALL_NR(r) __CHOOSE_MODE((r)->tt.syscall, (r)->skas.syscall)
+#define UPT_SYSCALL_RET(r) UPT_RAX(r)
extern int user_context(unsigned long sp);
@@ -196,32 +197,32 @@ struct syscall_args {
#define UPT_SET(regs, reg, val) \
- ({ unsigned long val; \
+ ({ unsigned long __upt_val = val; \
switch(reg){ \
- case R8: UPT_R8(regs) = val; break; \
- case R9: UPT_R9(regs) = val; break; \
- case R10: UPT_R10(regs) = val; break; \
- case R11: UPT_R11(regs) = val; break; \
- case R12: UPT_R12(regs) = val; break; \
- case R13: UPT_R13(regs) = val; break; \
- case R14: UPT_R14(regs) = val; break; \
- case R15: UPT_R15(regs) = val; break; \
- case RIP: UPT_IP(regs) = val; break; \
- case RSP: UPT_SP(regs) = val; break; \
- case RAX: UPT_RAX(regs) = val; break; \
- case RBX: UPT_RBX(regs) = val; break; \
- case RCX: UPT_RCX(regs) = val; break; \
- case RDX: UPT_RDX(regs) = val; break; \
- case RSI: UPT_RSI(regs) = val; break; \
- case RDI: UPT_RDI(regs) = val; break; \
- case RBP: UPT_RBP(regs) = val; break; \
- case ORIG_RAX: UPT_ORIG_RAX(regs) = val; break; \
- case CS: UPT_CS(regs) = val; break; \
- case DS: UPT_DS(regs) = val; break; \
- case ES: UPT_ES(regs) = val; break; \
- case FS: UPT_FS(regs) = val; break; \
- case GS: UPT_GS(regs) = val; break; \
- case EFLAGS: UPT_EFLAGS(regs) = val; break; \
+ case R8: UPT_R8(regs) = __upt_val; break; \
+ case R9: UPT_R9(regs) = __upt_val; break; \
+ case R10: UPT_R10(regs) = __upt_val; break; \
+ case R11: UPT_R11(regs) = __upt_val; break; \
+ case R12: UPT_R12(regs) = __upt_val; break; \
+ case R13: UPT_R13(regs) = __upt_val; break; \
+ case R14: UPT_R14(regs) = __upt_val; break; \
+ case R15: UPT_R15(regs) = __upt_val; break; \
+ case RIP: UPT_IP(regs) = __upt_val; break; \
+ case RSP: UPT_SP(regs) = __upt_val; break; \
+ case RAX: UPT_RAX(regs) = __upt_val; break; \
+ case RBX: UPT_RBX(regs) = __upt_val; break; \
+ case RCX: UPT_RCX(regs) = __upt_val; break; \
+ case RDX: UPT_RDX(regs) = __upt_val; break; \
+ case RSI: UPT_RSI(regs) = __upt_val; break; \
+ case RDI: UPT_RDI(regs) = __upt_val; break; \
+ case RBP: UPT_RBP(regs) = __upt_val; break; \
+ case ORIG_RAX: UPT_ORIG_RAX(regs) = __upt_val; break; \
+ case CS: UPT_CS(regs) = __upt_val; break; \
+ case DS: UPT_DS(regs) = __upt_val; break; \
+ case ES: UPT_ES(regs) = __upt_val; break; \
+ case FS: UPT_FS(regs) = __upt_val; break; \
+ case GS: UPT_GS(regs) = __upt_val; break; \
+ case EFLAGS: UPT_EFLAGS(regs) = __upt_val; break; \
default : \
panic("Bad register in UPT_SET : %d\n", reg); \
break; \
@@ -241,24 +242,7 @@ struct syscall_args {
CHOOSE_MODE(SC_SEGV_IS_FIXABLE(UPT_SC(r)), \
REGS_SEGV_IS_FIXABLE(&r->skas))
-#define UPT_FAULT_ADDR(r) \
- __CHOOSE_MODE(SC_FAULT_ADDR(UPT_SC(r)), REGS_FAULT_ADDR(&r->skas))
-
-#define UPT_FAULT_WRITE(r) \
- CHOOSE_MODE(SC_FAULT_WRITE(UPT_SC(r)), REGS_FAULT_WRITE(&r->skas))
-
-#define UPT_TRAP(r) __CHOOSE_MODE(SC_TRAP_TYPE(UPT_SC(r)), REGS_TRAP(&r->skas))
-#define UPT_ERR(r) __CHOOSE_MODE(SC_FAULT_TYPE(UPT_SC(r)), REGS_ERR(&r->skas))
+#define UPT_FAULTINFO(r) \
+ CHOOSE_MODE((&(r)->tt.faultinfo), (&(r)->skas.faultinfo))
#endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/include/sysdep-x86_64/sigcontext.h b/arch/um/include/sysdep-x86_64/sigcontext.h
index 1e38a54ff4cf..2a78260d15a0 100644
--- a/arch/um/include/sysdep-x86_64/sigcontext.h
+++ b/arch/um/include/sysdep-x86_64/sigcontext.h
@@ -17,11 +17,12 @@
#define SC_FAULT_ADDR(sc) SC_CR2(sc)
#define SC_FAULT_TYPE(sc) SC_ERR(sc)
-#define FAULT_WRITE(err) ((err) & 2)
-
-#define SC_FAULT_WRITE(sc) FAULT_WRITE(SC_FAULT_TYPE(sc))
-
-#define SC_TRAP_TYPE(sc) SC_TRAPNO(sc)
+#define GET_FAULTINFO_FROM_SC(fi,sc) \
+ { \
+ (fi).cr2 = SC_CR2(sc); \
+ (fi).error_code = SC_ERR(sc); \
+ (fi).trap_no = SC_TRAPNO(sc); \
+ }
/* ptrace expects that, at the start of a system call, %eax contains
* -ENOSYS, so this makes it so.
@@ -29,8 +30,8 @@
#define SC_START_SYSCALL(sc) do SC_RAX(sc) = -ENOSYS; while(0)
-#define SEGV_IS_FIXABLE(trap) ((trap) == 14)
-#define SC_SEGV_IS_FIXABLE(sc) SEGV_IS_FIXABLE(SC_TRAP_TYPE(sc))
+/* This is Page Fault */
+#define SEGV_IS_FIXABLE(fi) ((fi)->trap_no == 14)
extern unsigned long *sc_sigmask(void *sc_ptr);
diff --git a/arch/um/include/sysdep-x86_64/signal.h b/arch/um/include/sysdep-x86_64/signal.h
index e5e52756fab4..6142897af3d1 100644
--- a/arch/um/include/sysdep-x86_64/signal.h
+++ b/arch/um/include/sysdep-x86_64/signal.h
@@ -6,6 +6,8 @@
#ifndef __X86_64_SIGNAL_H_
#define __X86_64_SIGNAL_H_
+#define ARCH_SIGHDLR_PARAM int sig
+
#define ARCH_GET_SIGCONTEXT(sc, sig_addr) \
do { \
struct ucontext *__uc; \
diff --git a/arch/um/include/sysdep-x86_64/skas_ptrace.h b/arch/um/include/sysdep-x86_64/skas_ptrace.h
new file mode 100644
index 000000000000..95db4be786e4
--- /dev/null
+++ b/arch/um/include/sysdep-x86_64/skas_ptrace.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __SYSDEP_X86_64_SKAS_PTRACE_H
+#define __SYSDEP_X86_64_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