x86, um: get rid of sysdep symlink

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 171 insertions, 0 deletions

diff --git a/arch/um/sys-i386/sysdep/ptrace.h b/arch/um/sys-i386/sysdep/ptrace.h
new file mode 100644
index 0000000..11c0896
--- /dev/null
+++ b/arch/um/sys-i386/sysdep/ptrace.h
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __SYSDEP_I386_PTRACE_H
+#define __SYSDEP_I386_PTRACE_H
+
+#include "uml-config.h"
+#include "user_constants.h"
+#include "sysdep/faultinfo.h"
+
+#define MAX_REG_NR (UM_FRAME_SIZE / sizeof(unsigned long))
+#define MAX_REG_OFFSET (UM_FRAME_SIZE)
+
+static inline void update_debugregs(int seq) {}
+
+/* syscall emulation path in ptrace */
+
+#ifndef PTRACE_SYSEMU
+#define PTRACE_SYSEMU 31
+#endif
+
+void set_using_sysemu(int value);
+int get_using_sysemu(void);
+extern int sysemu_supported;
+
+#include "skas_ptregs.h"
+
+#define REGS_IP(r) ((r)[HOST_IP])
+#define REGS_SP(r) ((r)[HOST_SP])
+#define REGS_EFLAGS(r) ((r)[HOST_EFLAGS])
+#define REGS_EAX(r) ((r)[HOST_EAX])
+#define REGS_EBX(r) ((r)[HOST_EBX])
+#define REGS_ECX(r) ((r)[HOST_ECX])
+#define REGS_EDX(r) ((r)[HOST_EDX])
+#define REGS_ESI(r) ((r)[HOST_ESI])
+#define REGS_EDI(r) ((r)[HOST_EDI])
+#define REGS_EBP(r) ((r)[HOST_EBP])
+#define REGS_CS(r) ((r)[HOST_CS])
+#define REGS_SS(r) ((r)[HOST_SS])
+#define REGS_DS(r) ((r)[HOST_DS])
+#define REGS_ES(r) ((r)[HOST_ES])
+#define REGS_FS(r) ((r)[HOST_FS])
+#define REGS_GS(r) ((r)[HOST_GS])
+
+#define REGS_SET_SYSCALL_RETURN(r, res) REGS_EAX(r) = (res)
+
+#define REGS_RESTART_SYSCALL(r) IP_RESTART_SYSCALL(REGS_IP(r))
+
+#ifndef PTRACE_SYSEMU_SINGLESTEP
+#define PTRACE_SYSEMU_SINGLESTEP 32
+#endif
+
+struct uml_pt_regs {
+	unsigned long gp[MAX_REG_NR];
+	struct faultinfo faultinfo;
+	long syscall;
+	int is_user;
+};
+
+#define EMPTY_UML_PT_REGS { }
+
+#define UPT_IP(r) REGS_IP((r)->gp)
+#define UPT_SP(r) REGS_SP((r)->gp)
+#define UPT_EFLAGS(r) REGS_EFLAGS((r)->gp)
+#define UPT_EAX(r) REGS_EAX((r)->gp)
+#define UPT_EBX(r) REGS_EBX((r)->gp)
+#define UPT_ECX(r) REGS_ECX((r)->gp)
+#define UPT_EDX(r) REGS_EDX((r)->gp)
+#define UPT_ESI(r) REGS_ESI((r)->gp)
+#define UPT_EDI(r) REGS_EDI((r)->gp)
+#define UPT_EBP(r) REGS_EBP((r)->gp)
+#define UPT_ORIG_EAX(r) ((r)->syscall)
+#define UPT_CS(r) REGS_CS((r)->gp)
+#define UPT_SS(r) REGS_SS((r)->gp)
+#define UPT_DS(r) REGS_DS((r)->gp)
+#define UPT_ES(r) REGS_ES((r)->gp)
+#define UPT_FS(r) REGS_FS((r)->gp)
+#define UPT_GS(r) REGS_GS((r)->gp)
+
+#define UPT_SYSCALL_ARG1(r) UPT_EBX(r)
+#define UPT_SYSCALL_ARG2(r) UPT_ECX(r)
+#define UPT_SYSCALL_ARG3(r) UPT_EDX(r)
+#define UPT_SYSCALL_ARG4(r) UPT_ESI(r)
+#define UPT_SYSCALL_ARG5(r) UPT_EDI(r)
+#define UPT_SYSCALL_ARG6(r) UPT_EBP(r)
+
+extern int user_context(unsigned long sp);
+
+#define UPT_IS_USER(r) ((r)->is_user)
+
+struct syscall_args {
+	unsigned long args[6];
+};
+
+#define SYSCALL_ARGS(r) ((struct syscall_args) \
+			 { .args = { UPT_SYSCALL_ARG1(r),	\
+				     UPT_SYSCALL_ARG2(r),	\
+				     UPT_SYSCALL_ARG3(r),	\
+				     UPT_SYSCALL_ARG4(r),	\
+				     UPT_SYSCALL_ARG5(r),	\
+				     UPT_SYSCALL_ARG6(r) } } )
+
+#define UPT_REG(regs, reg) \
+	({	unsigned long val; \
+		switch(reg){ \
+		case EIP: val = UPT_IP(regs); break; \
+		case UESP: val = UPT_SP(regs); break; \
+		case EAX: val = UPT_EAX(regs); break; \
+		case EBX: val = UPT_EBX(regs); break; \
+		case ECX: val = UPT_ECX(regs); break; \
+		case EDX: val = UPT_EDX(regs); break; \
+		case ESI: val = UPT_ESI(regs); break; \
+		case EDI: val = UPT_EDI(regs); break; \
+		case EBP: val = UPT_EBP(regs); break; \
+		case ORIG_EAX: val = UPT_ORIG_EAX(regs); break; \
+		case CS: val = UPT_CS(regs); break; \
+		case SS: val = UPT_SS(regs); break; \
+		case DS: val = UPT_DS(regs); break; \
+		case ES: val = UPT_ES(regs); break; \
+		case FS: val = UPT_FS(regs); break; \
+		case GS: val = UPT_GS(regs); break; \
+		case EFL: val = UPT_EFLAGS(regs); break; \
+		default :  \
+			panic("Bad register in UPT_REG : %d\n", reg);  \
+			val = -1; \
+		} \
+	        val; \
+	})
+
+#define UPT_SET(regs, reg, val) \
+	do { \
+		switch(reg){ \
+		case EIP: UPT_IP(regs) = val; break; \
+		case UESP: UPT_SP(regs) = val; break; \
+		case EAX: UPT_EAX(regs) = val; break; \
+		case EBX: UPT_EBX(regs) = val; break; \
+		case ECX: UPT_ECX(regs) = val; break; \
+		case EDX: UPT_EDX(regs) = val; break; \
+		case ESI: UPT_ESI(regs) = val; break; \
+		case EDI: UPT_EDI(regs) = val; break; \
+		case EBP: UPT_EBP(regs) = val; break; \
+		case ORIG_EAX: UPT_ORIG_EAX(regs) = val; break; \
+		case CS: UPT_CS(regs) = val; break; \
+		case SS: UPT_SS(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 EFL: UPT_EFLAGS(regs) = val; break; \
+		default :  \
+			panic("Bad register in UPT_SET : %d\n", reg);  \
+			break; \
+		} \
+	} while (0)
+
+#define UPT_SET_SYSCALL_RETURN(r, res) \
+	REGS_SET_SYSCALL_RETURN((r)->regs, (res))
+
+#define UPT_RESTART_SYSCALL(r) REGS_RESTART_SYSCALL((r)->gp)
+
+#define UPT_ORIG_SYSCALL(r) UPT_EAX(r)
+#define UPT_SYSCALL_NR(r) UPT_ORIG_EAX(r)
+#define UPT_SYSCALL_RET(r) UPT_EAX(r)
+
+#define UPT_FAULTINFO(r) (&(r)->faultinfo)
+
+extern void arch_init_registers(int pid);
+
+#endif