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Date: Thu, 18 Aug 2011 20:03:49 +0100
From: Al Viro <viro@....linux.org.uk>
To: richard@....at
Cc: user-mode-linux-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org
Subject: Subject: [PATCH 29/91] um: merge
arch/um/os-Linux/sys-{i386,x86_64}
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
arch/um/os-Linux/Makefile | 2 +-
arch/um/os-Linux/{sys-i386 => sys-x86}/Makefile | 5 ++-
arch/um/os-Linux/{sys-x86_64 => sys-x86}/prctl.c | 0
arch/um/os-Linux/{sys-i386 => sys-x86}/registers.c | 58 ++++++++++++++------
arch/um/os-Linux/{sys-i386 => sys-x86}/task_size.c | 12 ++++
arch/um/os-Linux/{sys-i386 => sys-x86}/tls.c | 0
arch/um/os-Linux/sys-x86_64/Makefile | 10 ----
arch/um/os-Linux/sys-x86_64/registers.c | 50 -----------------
arch/um/os-Linux/sys-x86_64/task_size.c | 5 --
9 files changed, 57 insertions(+), 85 deletions(-)
rename arch/um/os-Linux/{sys-i386 => sys-x86}/Makefile (63%)
rename arch/um/os-Linux/{sys-x86_64 => sys-x86}/prctl.c (100%)
rename arch/um/os-Linux/{sys-i386 => sys-x86}/registers.c (83%)
rename arch/um/os-Linux/{sys-i386 => sys-x86}/task_size.c (95%)
rename arch/um/os-Linux/{sys-i386 => sys-x86}/tls.c (100%)
delete mode 100644 arch/um/os-Linux/sys-x86_64/Makefile
delete mode 100644 arch/um/os-Linux/sys-x86_64/registers.c
delete mode 100644 arch/um/os-Linux/sys-x86_64/task_size.c
diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile
index 7aec5bf..7879e76 100644
--- a/arch/um/os-Linux/Makefile
+++ b/arch/um/os-Linux/Makefile
@@ -5,7 +5,7 @@
obj-y = aio.o execvp.o file.o helper.o irq.o main.o mem.o process.o \
registers.o sigio.o signal.o start_up.o time.o tty.o \
- umid.o tls.o user_syms.o util.o drivers/ sys-$(SUBARCH)/ skas/
+ umid.o tls.o user_syms.o util.o drivers/ sys-$(HEADER_ARCH)/ skas/
obj-$(CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA) += elf_aux.o
diff --git a/arch/um/os-Linux/sys-i386/Makefile b/arch/um/os-Linux/sys-x86/Makefile
similarity index 63%
rename from arch/um/os-Linux/sys-i386/Makefile
rename to arch/um/os-Linux/sys-x86/Makefile
index d491754..22cc507 100644
--- a/arch/um/os-Linux/sys-i386/Makefile
+++ b/arch/um/os-Linux/sys-x86/Makefile
@@ -3,7 +3,10 @@
# Licensed under the GPL
#
-obj-y = registers.o task_size.o tls.o
+obj-y = registers.o task_size.o
+
+obj-$(CONFIG_X86_32) += tls.o
+obj-$(CONFIG_64BIT) += prctl.o
USER_OBJS := $(obj-y)
diff --git a/arch/um/os-Linux/sys-x86_64/prctl.c b/arch/um/os-Linux/sys-x86/prctl.c
similarity index 100%
rename from arch/um/os-Linux/sys-x86_64/prctl.c
rename to arch/um/os-Linux/sys-x86/prctl.c
diff --git a/arch/um/os-Linux/sys-i386/registers.c b/arch/um/os-Linux/sys-x86/registers.c
similarity index 83%
rename from arch/um/os-Linux/sys-i386/registers.c
rename to arch/um/os-Linux/sys-x86/registers.c
index 913d811..3a9b624 100644
--- a/arch/um/os-Linux/sys-i386/registers.c
+++ b/arch/um/os-Linux/sys-x86/registers.c
@@ -24,6 +24,8 @@ int restore_fp_registers(int pid, unsigned long *fp_regs)
return 0;
}
+#ifdef __i386__
+int have_fpx_regs = 1;
int save_fpx_registers(int pid, unsigned long *fp_regs)
{
if (ptrace(PTRACE_GETFPXREGS, pid, 0, fp_regs) < 0)
@@ -38,24 +40,6 @@ int restore_fpx_registers(int pid, unsigned long *fp_regs)
return 0;
}
-unsigned long get_thread_reg(int reg, jmp_buf *buf)
-{
- switch (reg) {
- case EIP:
- return buf[0]->__eip;
- case UESP:
- return buf[0]->__esp;
- case EBP:
- return buf[0]->__ebp;
- default:
- printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",
- reg);
- return 0;
- }
-}
-
-int have_fpx_regs = 1;
-
int get_fp_registers(int pid, unsigned long *regs)
{
if (have_fpx_regs)
@@ -87,3 +71,41 @@ void arch_init_registers(int pid)
have_fpx_regs = 0;
}
+#else
+
+int get_fp_registers(int pid, unsigned long *regs)
+{
+ return save_fp_registers(pid, regs);
+}
+
+int put_fp_registers(int pid, unsigned long *regs)
+{
+ return restore_fp_registers(pid, regs);
+}
+
+#endif
+
+unsigned long get_thread_reg(int reg, jmp_buf *buf)
+{
+ switch (reg) {
+#ifdef __i386__
+ case EIP:
+ return buf[0]->__eip;
+ case UESP:
+ return buf[0]->__esp;
+ case EBP:
+ return buf[0]->__ebp;
+#else
+ case RIP:
+ return buf[0]->__rip;
+ case RSP:
+ return buf[0]->__rsp;
+ case RBP:
+ return buf[0]->__rbp;
+#endif
+ default:
+ printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",
+ reg);
+ return 0;
+ }
+}
diff --git a/arch/um/os-Linux/sys-i386/task_size.c b/arch/um/os-Linux/sys-x86/task_size.c
similarity index 95%
rename from arch/um/os-Linux/sys-i386/task_size.c
rename to arch/um/os-Linux/sys-x86/task_size.c
index 4ce09b8..efb16c5 100644
--- a/arch/um/os-Linux/sys-i386/task_size.c
+++ b/arch/um/os-Linux/sys-x86/task_size.c
@@ -4,6 +4,8 @@
#include <sys/mman.h>
#include "longjmp.h"
+#ifdef __i386__
+
static jmp_buf buf;
static void segfault(int sig)
@@ -136,3 +138,13 @@ out:
return top;
}
+
+#else
+
+unsigned long os_get_top_address(void)
+{
+ /* The old value of CONFIG_TOP_ADDR */
+ return 0x7fc0000000;
+}
+
+#endif
diff --git a/arch/um/os-Linux/sys-i386/tls.c b/arch/um/os-Linux/sys-x86/tls.c
similarity index 100%
rename from arch/um/os-Linux/sys-i386/tls.c
rename to arch/um/os-Linux/sys-x86/tls.c
diff --git a/arch/um/os-Linux/sys-x86_64/Makefile b/arch/um/os-Linux/sys-x86_64/Makefile
deleted file mode 100644
index 58f6e0a..0000000
--- a/arch/um/os-Linux/sys-x86_64/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-#
-# Copyright (C) 2000 - 2007 Jeff Dike (jdike@...dtoit,linux.intel}.com)
-# Licensed under the GPL
-#
-
-obj-y = registers.o prctl.o task_size.o
-
-USER_OBJS := $(obj-y)
-
-include arch/um/scripts/Makefile.rules
diff --git a/arch/um/os-Linux/sys-x86_64/registers.c b/arch/um/os-Linux/sys-x86_64/registers.c
deleted file mode 100644
index 0594d55..0000000
--- a/arch/um/os-Linux/sys-x86_64/registers.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright (C) 2006 - 2007 Jeff Dike (jdike@...dtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#include <errno.h>
-#include <sys/ptrace.h>
-#define __FRAME_OFFSETS
-#include <asm/ptrace.h>
-#include "longjmp.h"
-
-int save_fp_registers(int pid, unsigned long *fp_regs)
-{
- if (ptrace(PTRACE_GETFPREGS, pid, 0, fp_regs) < 0)
- return -errno;
- return 0;
-}
-
-int restore_fp_registers(int pid, unsigned long *fp_regs)
-{
- if (ptrace(PTRACE_SETFPREGS, pid, 0, fp_regs) < 0)
- return -errno;
- return 0;
-}
-
-unsigned long get_thread_reg(int reg, jmp_buf *buf)
-{
- switch (reg) {
- case RIP:
- return buf[0]->__rip;
- case RSP:
- return buf[0]->__rsp;
- case RBP:
- return buf[0]->__rbp;
- default:
- printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",
- reg);
- return 0;
- }
-}
-
-int get_fp_registers(int pid, unsigned long *regs)
-{
- return save_fp_registers(pid, regs);
-}
-
-int put_fp_registers(int pid, unsigned long *regs)
-{
- return restore_fp_registers(pid, regs);
-}
diff --git a/arch/um/os-Linux/sys-x86_64/task_size.c b/arch/um/os-Linux/sys-x86_64/task_size.c
deleted file mode 100644
index 26a0dd1..0000000
--- a/arch/um/os-Linux/sys-x86_64/task_size.c
+++ /dev/null
@@ -1,5 +0,0 @@
-unsigned long os_get_top_address(unsigned long shift)
-{
- /* The old value of CONFIG_TOP_ADDR */
- return 0x7fc0000000;
-}
--
1.7.2.5
--
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