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Commit dbb3cc44 authored by Jeff Dike's avatar Jeff Dike
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Merge jdike.stearns.org:linux/build-2.5/ 

into uml.karaya.com:/home/jdike/linux/2.5/build-2.5
parents eec91b48 8ed83bd9
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Showing with 689 additions and 97 deletions
arch/um/Kconfig
View file @ dbb3cc44
......@@ -30,14 +30,6 @@ config RWSEM_GENERIC_SPINLOCK
bool
default y
config MODE_TT
bool
default y
config MODE_SKAS
bool
default y
menu "Code maturity level options"
config EXPERIMENTAL
......@@ -48,6 +40,37 @@ endmenu
menu "General Setup"
config MODE_TT
bool "Tracing thread support"
default y
help
This option controls whether tracing thread support is compiled
into UML. Normally, this should be set to Y. If you intend to
use only skas mode (and the host has the skas patch applied to it),
then it is OK to say N here.
config STATIC_LINK
bool "Force a static link"
default n
depends on !MODE_TT
help
If CONFIG_MODE_TT is disabled, then this option gives you the ability
to force a static link of UML. Normally, if only skas mode is built
in to UML, it will be linked as a shared binary. This is inconvenient
for use in a chroot jail. So, if you intend to run UML inside a
chroot, and you disable CONFIG_MODE_TT, you probably want to say Y
here.
config MODE_SKAS
bool "Separate Kernel Address Space support"
default y
help
This option controls whether skas (separate kernel address space)
support is compiled in. If you have applied the skas patch to the
host, then you certainly want to say Y here (and consider saying N
to CONFIG_MODE_TT). Otherwise, it is safe to say Y. Disabling this
option will shrink the UML binary slightly.
config NET
bool "Networking support"
......@@ -232,6 +255,10 @@ config DEBUGSYM
If you're truly short on disk space or don't expect to report any
bugs back to the UML developers, say N, otherwise say Y.
config FRAME_POINTER
bool
default y if DEBUGSYM
config PT_PROXY
bool "Enable ptrace proxy"
depends on XTERM_CHAN && DEBUGSYM
......
arch/um/Makefile
View file @ dbb3cc44
......@@ -6,9 +6,6 @@
ARCH_DIR = arch/um
OS := $(shell uname -s)
EXTRAVERSION := $(EXTRAVERSION)-1um
include/linux/version.h: arch/$(ARCH)/Makefile
# Recalculate MODLIB to reflect the EXTRAVERSION changes (via KERNELRELEASE)
# The way the toplevel Makefile is written EXTRAVERSION is not supposed
# to be changed outside the toplevel Makefile, but recalculating MODLIB is
......@@ -21,17 +18,34 @@ CFLAGS := $(subst -fomit-frame-pointer,,$(CFLAGS))
endif
CFLAGS-$(CONFIG_DEBUGSYM) += -g
CFLAGS-$(CONFIG_GCOV) += -fprofile-arcs -ftest-coverage
CFLAGS-$(CONFIG_GPROF) += $(PROFILE)
LINK-$(CONFIG_GPROF) += $(PROFILE) -Wl,--wrap,__monstartup
core-y += $(ARCH_DIR)/kernel/ \
$(ARCH_DIR)/drivers/ \
$(ARCH_DIR)/sys-$(SUBARCH)/
# Have to precede the include because the included Makefiles reference them.
SYMLINK_HEADERS = include/asm-um/archparam.h include/asm-um/system.h \
include/asm-um/sigcontext.h include/asm-um/processor.h \
include/asm-um/ptrace.h include/asm-um/arch-signal.h
ARCH_SYMLINKS = include/asm-um/arch $(ARCH_DIR)/include/sysdep $(ARCH_DIR)/os \
$(SYMLINK_HEADERS) $(ARCH_DIR)/include/uml-config.h
GEN_HEADERS += $(ARCH_DIR)/include/task.h $(ARCH_DIR)/include/kern_constants.h
include $(ARCH_DIR)/Makefile-$(SUBARCH)
include $(ARCH_DIR)/Makefile-os-$(OS)
MAKEFILE-$(CONFIG_MODE_TT) += Makefile-tt
MAKEFILE-$(CONFIG_MODE_SKAS) += Makefile-skas
ifneq ($(MAKEFILE-y),)
include $(addprefix $(ARCH_DIR)/,$(MAKEFILE-y))
endif
EXTRAVERSION := $(EXTRAVERSION)-1um
ARCH_INCLUDE = -I$(ARCH_DIR)/include
MODE_INCLUDE = -I$(ARCH_DIR)/kernel/tt/include \
-I$(ARCH_DIR)/kernel/skas/include
# -Derrno=kernel_errno - This turns all kernel references to errno into
# kernel_errno to separate them from the libc errno. This allows -fno-common
......@@ -46,23 +60,11 @@ LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc
SIZE = (($(CONFIG_NEST_LEVEL) + $(CONFIG_KERNEL_HALF_GIGS)) * 0x20000000)
SYMLINK_HEADERS = include/asm-um/archparam.h include/asm-um/system.h \
include/asm-um/sigcontext.h include/asm-um/processor.h \
include/asm-um/ptrace.h include/asm-um/arch-signal.h
ARCH_SYMLINKS = include/asm-um/arch $(ARCH_DIR)/include/sysdep $(ARCH_DIR)/os \
$(SYMLINK_HEADERS) $(ARCH_DIR)/include/uml-config.h
ifeq ($(CONFIG_MODE_SKAS), y)
GEN_HEADERS = $(ARCH_DIR)/kernel/skas/include/skas_ptregs.h
$(SYS_HEADERS) : $(ARCH_DIR)/kernel/skas/include/skas_ptregs.h
endif
GEN_HEADERS += $(ARCH_DIR)/include/task.h $(ARCH_DIR)/include/kern_constants.h
include $(ARCH_DIR)/Makefile-$(SUBARCH)
include $(ARCH_DIR)/Makefile-os-$(OS)
include/linux/version.h: arch/$(ARCH)/Makefile
$(ARCH_DIR)/vmlinux.lds.S :
touch $@
......@@ -73,16 +75,44 @@ LDFLAGS_vmlinux = -r
vmlinux: $(ARCH_DIR)/main.o
$(ARCH_DIR)/uml.lds.s : $(ARCH_DIR)/uml.lds.S scripts FORCE
$(call if_changed_dep,as_s_S)
# These aren't in Makefile-tt because they are needed in the !CONFIG_MODE_TT +
# CONFIG_MODE_SKAS + CONFIG_STATIC_LINK case.
LINK_TT = -static
LD_SCRIPT_TT := uml.lds.s
ifeq ($(CONFIG_STATIC_LINK),y)
LINK-y += $(LINK_TT)
LD_SCRIPT-y := $(LD_SCRIPT_TT)
else
ifeq ($(CONFIG_MODE_TT),y)
LINK-y += $(LINK_TT)
LD_SCRIPT-y := $(LD_SCRIPT_TT)
else
ifeq ($(CONFIG_MODE_SKAS),y)
LINK-y += $(LINK_SKAS)
LD_SCRIPT-y := $(LD_SCRIPT_SKAS)
endif
endif
endif
AFLAGS_uml.lds.o = -U$(SUBARCH) -DSTART=$$(($(TOP_ADDR) - $(SIZE))) \
-DELF_ARCH=$(ELF_ARCH) -DELF_FORMAT=\"$(ELF_FORMAT)\" -P -C -Uum
CPP_MODE_TT := $(shell [ "$(CONFIG_MODE_TT)" = "y" ] && echo -DMODE_TT)
CONFIG_KERNEL_STACK_ORDER ?= 2
STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] )
linux: $(ARCH_DIR)/uml.lds.s vmlinux
$(CC) -Wl,-T,$(ARCH_DIR)/uml.lds.s -static $(LINK-y) $(LINK_WRAPS) \
-o linux $(ARCH_DIR)/main.o vmlinux -L/usr/lib -lutil
AFLAGS_$(LD_SCRIPT-y:.s=).o = -U$(SUBARCH) \
-DSTART=$$(($(TOP_ADDR) - $(SIZE))) -DELF_ARCH=$(ELF_ARCH) \
-DELF_FORMAT=\"$(ELF_FORMAT)\" $(CPP_MODE_TT) \
-DKERNEL_STACK_SIZE=$(STACK_SIZE) -P -C -Uum
LD_SCRIPT-y := $(ARCH_DIR)/$(LD_SCRIPT-y)
$(LD_SCRIPT-y) : $(LD_SCRIPT-y:.s=.S) scripts FORCE
$(call if_changed_dep,as_s_S)
linux: vmlinux $(LD_SCRIPT-y)
$(CC) -Wl,-T,$(LD_SCRIPT-y) $(LINK-y) $(LINK_WRAPS) \
-o linux $(ARCH_DIR)/main.o vmlinux -L/usr/lib -lutil
USER_CFLAGS := $(patsubst -I%,,$(CFLAGS))
USER_CFLAGS := $(patsubst -Derrno=kernel_errno,,$(USER_CFLAGS))
......@@ -92,7 +122,8 @@ USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) $(ARCH_INCLUDE) \
# To get a definition of F_SETSIG
USER_CFLAGS += -D_GNU_SOURCE
CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/link.ld $(GEN_HEADERS)
CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/uml.lds.s \
$(ARCH_DIR)/dyn_link.ld.s $(GEN_HEADERS)
$(ARCH_DIR)/main.o: $(ARCH_DIR)/main.c
$(CC) $(USER_CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $<
......@@ -102,8 +133,7 @@ archmrproper:
do \
$(MAKE) -C $$d archmrproper; \
done
rm -f $(SYMLINK_HEADERS) $(ARCH_SYMLINKS) include/asm \
$(ARCH_DIR)/link.ld \
rm -f $(CLEAN_FILES) $(SYMLINK_HEADERS) $(ARCH_SYMLINKS) include/asm \
$(addprefix $(ARCH_DIR)/kernel/,$(KERN_SYMLINKS))
archclean: sysclean
......@@ -146,7 +176,4 @@ $(ARCH_DIR)/util/mk_task : $(ARCH_DIR)/kernel/skas/include/skas_ptregs.h \
$(ARCH_DIR)/util: FORCE
@$(call descend,$@,)
$(ARCH_DIR)/kernel/skas/include/skas_ptregs.h :
$(MAKE) -C $(ARCH_DIR)/kernel/skas include/skas_ptregs.h
export SUBARCH USER_CFLAGS OS
arch/um/Makefile-skas 0 → 100644
View file @ dbb3cc44
#
# Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
# Licensed under the GPL
#
PROFILE += -pg
CFLAGS-$(CONFIG_GCOV) += -fprofile-arcs -ftest-coverage
CFLAGS-$(CONFIG_GPROF) += $(PROFILE)
LINK-$(CONFIG_GPROF) += $(PROFILE)
MODE_INCLUDE += -I$(TOPDIR)/$(ARCH_DIR)/kernel/skas/include
LINK_SKAS = -Wl,-rpath,/lib
LD_SCRIPT_SKAS = dyn.lds.s
GEN_HEADERS += $(ARCH_DIR)/kernel/skas/include/skas_ptregs.h
$(ARCH_DIR)/kernel/skas/include/skas_ptregs.h :
$(MAKE) -C $(ARCH_DIR)/kernel/skas include/skas_ptregs.h
arch/um/Makefile-tt 0 → 100644
View file @ dbb3cc44
#
# Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
# Licensed under the GPL
#
MODE_INCLUDE += -I$(TOPDIR)/$(ARCH_DIR)/kernel/tt/include
arch/um/drivers/line.c
View file @ dbb3cc44
......@@ -452,11 +452,19 @@ void line_register_devfs(struct lines *set, struct line_driver *line_driver,
void lines_init(struct line *lines, int nlines)
{
struct line *line;
int i;
for(i = 0; i < nlines; i++){
INIT_LIST_HEAD(&lines[i].chan_list);
sema_init(&lines[i].sem, 1);
line = &lines[i];
INIT_LIST_HEAD(&line->chan_list);
sema_init(&line->sem, 1);
if(line->init_str != NULL){
line->init_str = uml_strdup(line->init_str);
if(line->init_str == NULL)
printk("lines_init - uml_strdup returned "
"NULL\n");
}
}
}
......
arch/um/drivers/port_kern.c
View file @ dbb3cc44
......@@ -99,7 +99,8 @@ static int port_accept(struct port_list *port)
}
list_add(&conn->list, &port->pending);
return(1);
ret = 1;
goto out;
out_free:
kfree(conn);
......@@ -274,8 +275,6 @@ void port_kern_free(void *d)
{
struct port_dev *dev = d;
if(dev->helper_pid != -1) os_kill_process(dev->helper_pid, 0);
if(dev->telnetd_pid != -1) os_kill_process(dev->telnetd_pid, 0);
kfree(dev);
}
......
arch/um/dyn.lds.S 0 → 100644
View file @ dbb3cc44
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/* Do we need any of these for elf?
__DYNAMIC = 0; */
SECTIONS
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arch/um/dyn_link.ld.in 0 → 100644
View file @ dbb3cc44
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.rodata1 : { *(.rodata1) }
.eh_frame_hdr : { *(.eh_frame_hdr) }
. = ALIGN(4096);
PROVIDE (_sdata = .);
.unprotected : { *(.unprotected) }
. = ALIGN(4096);
PROVIDE (_unprotected_end = .);
. = ALIGN(4096);
__uml_setup_start = .;
.uml.setup.init : { *(.uml.setup.init) }
__uml_setup_end = .;
__uml_help_start = .;
.uml.help.init : { *(.uml.help.init) }
__uml_help_end = .;
__uml_postsetup_start = .;
.uml.postsetup.init : { *(.uml.postsetup.init) }
__uml_postsetup_end = .;
__setup_start = .;
.setup.init : { *(.setup.init) }
__setup_end = .;
__initcall_start = .;
.initcall.init : { *(.initcall.init) }
__initcall_end = .;
__uml_initcall_start = .;
.uml.initcall.init : { *(.uml.initcall.init) }
__uml_initcall_end = .;
__init_end = .;
__exitcall_begin = .;
.exitcall : { *(.exitcall.exit) }
__exitcall_end = .;
__uml_exitcall_begin = .;
.uml.exitcall : { *(.uml.exitcall.exit) }
__uml_exitcall_end = .;
.data.init : { *(.data.init) }
/* Ensure the __preinit_array_start label is properly aligned. We
could instead move the label definition inside the section, but
the linker would then create the section even if it turns out to
be empty, which isn't pretty. */
. = ALIGN(32 / 8);
.preinit_array : { *(.preinit_array) }
.init_array : { *(.init_array) }
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.data : {
. = ALIGN(KERNEL_STACK_SIZE); /* init_task */
*(.data.init_task)
*(.data .data.* .gnu.linkonce.d.*)
SORT(CONSTRUCTORS)
}
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.eh_frame : { KEEP (*(.eh_frame)) }
.gcc_except_table : { *(.gcc_except_table) }
.dynamic : { *(.dynamic) }
.ctors : {
/* gcc uses crtbegin.o to find the start of
the constructors, so we make sure it is
first. Because this is a wildcard, it
doesn't matter if the user does not
actually link against crtbegin.o; the
linker won't look for a file to match a
wildcard. The wildcard also means that it
doesn't matter which directory crtbegin.o
is in. */
KEEP (*crtbegin.o(.ctors))
/* We don't want to include the .ctor section from
from the crtend.o file until after the sorted ctors.
The .ctor section from the crtend file contains the
end of ctors marker and it must be last */
KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
}
.dtors : {
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
}
.jcr : { KEEP (*(.jcr)) }
.got : { *(.got.plt) *(.got) }
_edata = .;
PROVIDE (edata = .);
__bss_start = .;
.bss : {
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
/* Align here to ensure that the .bss section occupies space up to
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. = ALIGN(32 / 8);
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_end = .;
PROVIDE (end = .);
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.debug_varnames 0 : { *(.debug_varnames) }
}
arch/um/include/sysdep-i386/ptrace.h
View file @ dbb3cc44
......@@ -7,8 +7,15 @@
#define __SYSDEP_I386_PTRACE_H
#include "uml-config.h"
#ifdef CONFIG_MODE_TT
#include "ptrace-tt.h"
#endif
#ifdef CONFIG_MODE_SKAS
#include "ptrace-skas.h"
#endif
#include "choose-mode.h"
struct uml_pt_regs {
......
arch/um/include/user_util.h
View file @ dbb3cc44
......@@ -61,7 +61,6 @@ extern int start_fork_tramp(void *arg, unsigned long temp_stack,
int clone_flags, int (*tramp)(void *));
extern int clone_and_wait(int (*fn)(void *), void *arg, void *sp, int flags);
extern int linux_main(int argc, char **argv);
extern void remap_data(void *segment_start, void *segment_end, int w);
extern void set_cmdline(char *cmd);
extern void input_cb(void (*proc)(void *), void *arg, int arg_len);
extern int get_pty(void);
......
arch/um/kernel/Makefile
View file @ dbb3cc44
......@@ -3,8 +3,6 @@
# Licensed under the GPL
#
EXTRA_TARGETS := unmap_fin.o
obj-y = checksum.o config.o exec_kern.o exitcode.o frame_kern.o frame.o \
helper.o init_task.o irq.o irq_user.o ksyms.o mem.o mem_user.o \
process.o process_kern.o ptrace.o reboot.o resource.o sigio_user.o \
......@@ -30,9 +28,6 @@ USER_OBJS := $(filter %_user.o,$(obj-y)) $(user-objs-y) config.o helper.o \
process.o tempfile.o time.o tty_log.o umid.o user_util.o user_syms.o
USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
UNMAP_CFLAGS := $(patsubst -pg -DPROFILING,,$(USER_CFLAGS))
UNMAP_CFLAGS := $(patsubst -fprofile-arcs -ftest-coverage,,$(UNMAP_CFLAGS))
DMODULES-$(CONFIG_MODULES) = -D__CONFIG_MODULES__
DMODVERSIONS-$(CONFIG_MODVERSIONS) = -D__CONFIG_MODVERSIONS__
......@@ -49,12 +44,6 @@ CFLAGS_frame.o := $(patsubst -fomit-frame-pointer,,$(USER_CFLAGS))
$(USER_OBJS) : %.o: %.c
$(CC) $(CFLAGS_$@) $(USER_CFLAGS) -c -o $@ $<
$(obj)/unmap.o: $(src)/unmap.c
$(CC) $(UNMAP_CFLAGS) -c -o $@ $<
$(obj)/unmap_fin.o : $(src)/unmap.o
ld -r -o $@ $< -lc -L/usr/lib
# This has to be separate because it needs be compiled with frame pointers
# regardless of how the rest of the kernel is built.
......
arch/um/kernel/ptrace.c
View file @ dbb3cc44
......@@ -9,7 +9,9 @@
#include "linux/smp_lock.h"
#include "linux/security.h"
#include "linux/ptrace.h"
#ifdef CONFIG_PROC_MM
#include "linux/proc_mm.h"
#endif
#include "asm/ptrace.h"
#include "asm/uaccess.h"
#include "kern_util.h"
......
arch/um/kernel/skas/include/mode_kern.h
View file @ dbb3cc44
......@@ -21,6 +21,8 @@ extern void release_thread_skas(struct task_struct *task);
extern void exit_thread_skas(void);
extern void initial_thread_cb_skas(void (*proc)(void *), void *arg);
extern void init_idle_skas(void);
extern void flush_tlb_kernel_range_skas(unsigned long start,
unsigned long end);
extern void flush_tlb_kernel_vm_skas(void);
extern void __flush_tlb_one_skas(unsigned long addr);
extern void flush_tlb_range_skas(struct vm_area_struct *vma,
......
arch/um/kernel/skas/tlb.c
View file @ dbb3cc44
......@@ -67,7 +67,7 @@ static void fix_range(struct mm_struct *mm, unsigned long start_addr,
}
}
static void flush_kernel_vm_range(unsigned long start, unsigned long end)
void flush_tlb_kernel_range_skas(unsigned long start, unsigned long end)
{
struct mm_struct *mm;
pgd_t *pgd;
......@@ -116,19 +116,19 @@ static void flush_kernel_vm_range(unsigned long start, unsigned long end)
void flush_tlb_kernel_vm_skas(void)
{
flush_kernel_vm_range(start_vm, end_vm);
flush_tlb_kernel_range_skas(start_vm, end_vm);
}
void __flush_tlb_one_skas(unsigned long addr)
{
flush_kernel_vm_range(addr, addr + PAGE_SIZE);
flush_tlb_kernel_range_skas(addr, addr + PAGE_SIZE);
}
void flush_tlb_range_skas(struct vm_area_struct *vma, unsigned long start,
unsigned long end)
{
if(vma->vm_mm == NULL)
flush_kernel_vm_range(start, end);
flush_tlb_kernel_range_skas(start, end);
else fix_range(vma->vm_mm, start, end, 0);
}
......
arch/um/kernel/tlb.c
View file @ dbb3cc44
......@@ -21,6 +21,12 @@ void flush_tlb_all(void)
flush_tlb_mm(current->mm);
}
void flush_tlb_kernel_range(unsigned long start, unsigned long end)
{
CHOOSE_MODE_PROC(flush_tlb_kernel_range_tt,
flush_tlb_kernel_range_skas, start, end);
}
void flush_tlb_kernel_vm(void)
{
CHOOSE_MODE(flush_tlb_kernel_vm_tt(), flush_tlb_kernel_vm_skas());
......
arch/um/kernel/tt/Makefile
View file @ dbb3cc44
......@@ -3,18 +3,31 @@
# Licensed under the GPL
#
obj-y = exec_kern.o exec_user.o gdb.o gdb_kern.o ksyms.o mem.o process_kern.o \
EXTRA_TARGETS := unmap_fin.o
obj-y = exec_kern.o exec_user.o gdb.o ksyms.o mem.o mem_user.o process_kern.o \
syscall_kern.o syscall_user.o time.o tlb.o tracer.o trap_user.o \
uaccess_user.o sys-$(SUBARCH)/
obj-$(CONFIG_PT_PROXY) += ptproxy/
obj-$(CONFIG_PT_PROXY) += gdb_kern.o ptproxy/
export-objs = ksyms.o
USER_OBJS := $(filter %_user.o,$(obj-y)) gdb.o time.o tracer.o
USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
UNMAP_CFLAGS := $(patsubst -pg -DPROFILING,,$(USER_CFLAGS))
UNMAP_CFLAGS := $(patsubst -fprofile-arcs -ftest-coverage,,$(UNMAP_CFLAGS))
$(USER_OBJS) : %.o: %.c
$(CC) $(CFLAGS_$(notdir $@)) $(USER_CFLAGS) -c -o $@ $<
$(O_TARGET) : $(obj)/unmap_fin.o
$(obj)/unmap.o: $(src)/unmap.c
$(CC) $(UNMAP_CFLAGS) -c -o $@ $<
$(obj)/unmap_fin.o : $(src)/unmap.o
ld -r -o $@ $< -lc -L/usr/lib
clean :
arch/um/kernel/tt/include/mode_kern.h
View file @ dbb3cc44
......@@ -22,6 +22,7 @@ extern void release_thread_tt(struct task_struct *task);
extern void exit_thread_tt(void);
extern void initial_thread_cb_tt(void (*proc)(void *), void *arg);
extern void init_idle_tt(void);
extern void flush_tlb_kernel_range_tt(unsigned long start, unsigned long end);
extern void flush_tlb_kernel_vm_tt(void);
extern void __flush_tlb_one_tt(unsigned long addr);
extern void flush_tlb_range_tt(struct vm_area_struct *vma,
......
arch/um/kernel/tt/mem_user.c 0 → 100644
View file @ dbb3cc44
/*
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/mman.h>
#include "tt.h"
#include "mem_user.h"
#include "user_util.h"
void remap_data(void *segment_start, void *segment_end, int w)
{
void *addr;
unsigned long size;
int data, prot;
if(w) prot = PROT_WRITE;
else prot = 0;
prot |= PROT_READ | PROT_EXEC;
size = (unsigned long) segment_end -
(unsigned long) segment_start;
data = create_mem_file(size);
if((addr = mmap(NULL, size, PROT_WRITE | PROT_READ,
MAP_SHARED, data, 0)) < 0){
perror("mapping new data segment");
exit(1);
}
memcpy(addr, segment_start, size);
if(switcheroo(data, prot, addr, segment_start,
size) < 0){
printf("switcheroo failed\n");
exit(1);
}
}
/*
* 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:
*/
arch/um/kernel/tt/tlb.c
View file @ dbb3cc44
......@@ -132,7 +132,7 @@ static void flush_kernel_vm_range(unsigned long start, unsigned long end,
if(updated && update_seq) atomic_inc(&vmchange_seq);
}
void flush_tlb_kernel_range(unsigned long start, unsigned long end)
void flush_tlb_kernel_range_tt(unsigned long start, unsigned long end)
{
flush_kernel_vm_range(start, end, 1);
}
......
arch/um/kernel/user_util.c
View file @ dbb3cc44
......@@ -46,31 +46,6 @@ void add_arg(char *cmd_line, char *arg)
strcat(cmd_line, arg);
}
void remap_data(void *segment_start, void *segment_end, int w)
{
void *addr;
unsigned long size;
int data, prot;
if(w) prot = PROT_WRITE;
else prot = 0;
prot |= PROT_READ | PROT_EXEC;
size = (unsigned long) segment_end -
(unsigned long) segment_start;
data = create_mem_file(size);
if((addr = mmap(NULL, size, PROT_WRITE | PROT_READ,
MAP_SHARED, data, 0)) < 0){
perror("mapping new data segment");
exit(1);
}
memcpy(addr, segment_start, size);
if(switcheroo(data, prot, addr, segment_start,
size) < 0){
printf("switcheroo failed\n");
exit(1);
}
}
void stop(void)
{
while(1) sleep(1000000);
......
arch/um/sys-i386/util/mk_thread_kern.c
View file @ dbb3cc44
#include "linux/config.h"
#include "linux/stddef.h"
#include "linux/sched.h"
......@@ -12,7 +13,9 @@ int main(int argc, char **argv)
{
print_head();
print_constant_ptr("TASK_DEBUGREGS", THREAD_OFFSET(arch.debugregs));
#ifdef CONFIG_MODE_TT
print_constant("TASK_EXTERN_PID", "int", THREAD_OFFSET(mode.tt.extern_pid));
#endif
print_tail();
return(0);
}
......
arch/um/uml.lds.S
View file @ dbb3cc44
......@@ -9,15 +9,17 @@ SECTIONS
. = ALIGN(4096);
__binary_start = .;
#ifdef MODE_TT
.thread_private : {
__start_thread_private = .;
errno = .;
. += 4;
arch/um/kernel/unmap_fin.o (.data)
arch/um/kernel/tt/unmap_fin.o (.data)
__end_thread_private = .;
}
. = ALIGN(4096);
.remap : { arch/um/kernel/unmap_fin.o (.text) }
.remap : { arch/um/kernel/tt/unmap_fin.o (.text) }
#endif
. = ALIGN(4096); /* Init code and data */
_stext = .;
......@@ -110,7 +112,7 @@ SECTIONS
.data.init : { *(.data.init) }
.data :
{
. = ALIGN(16384); /* init_task */
. = ALIGN(KERNEL_STACK_SIZE); /* init_task */
*(.data.init_task)
*(.data)
*(.gnu.linkonce.d*)
......
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