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-rw-r--r--arch/um/Kconfig2
-rw-r--r--arch/um/drivers/chan_kern.c12
-rw-r--r--arch/um/drivers/mconsole_kern.c3
-rw-r--r--arch/um/drivers/ubd_kern.c13
-rw-r--r--arch/um/include/mconsole.h2
-rw-r--r--arch/um/include/sysdep-x86_64/ptrace.h4
-rw-r--r--arch/um/kernel/mem.c3
-rw-r--r--arch/um/os-Linux/skas/mem.c10
-rw-r--r--arch/um/os-Linux/skas/process.c6
-rw-r--r--arch/um/os-Linux/sys-i386/registers.c5
-rw-r--r--arch/um/os-Linux/sys-x86_64/registers.c4
-rw-r--r--arch/um/scripts/Makefile.rules4
-rw-r--r--arch/um/sys-i386/delay.c11
-rw-r--r--arch/um/sys-i386/ldt.c3
-rw-r--r--arch/um/sys-x86_64/delay.c11
15 files changed, 39 insertions, 54 deletions
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index b3a21ba77cd..354cc6b7053 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -44,7 +44,7 @@ config LOCKDEP_SUPPORT
config STACKTRACE_SUPPORT
bool
- default y
+ default n
config GENERIC_CALIBRATE_DELAY
bool
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index 7b8baf146ac..9fdfad64953 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -236,11 +236,11 @@ void free_irqs(void)
struct chan *chan;
LIST_HEAD(list);
struct list_head *ele;
+ unsigned long flags;
- spin_lock_irq(&irqs_to_free_lock);
+ spin_lock_irqsave(&irqs_to_free_lock, flags);
list_splice_init(&irqs_to_free, &list);
- INIT_LIST_HEAD(&irqs_to_free);
- spin_unlock_irq(&irqs_to_free_lock);
+ spin_unlock_irqrestore(&irqs_to_free_lock, flags);
list_for_each(ele, &list){
chan = list_entry(ele, struct chan, free_list);
@@ -255,13 +255,15 @@ void free_irqs(void)
static void close_one_chan(struct chan *chan, int delay_free_irq)
{
+ unsigned long flags;
+
if(!chan->opened)
return;
if(delay_free_irq){
- spin_lock_irq(&irqs_to_free_lock);
+ spin_lock_irqsave(&irqs_to_free_lock, flags);
list_add(&chan->free_list, &irqs_to_free);
- spin_unlock_irq(&irqs_to_free_lock);
+ spin_unlock_irqrestore(&irqs_to_free_lock, flags);
}
else {
if(chan->input)
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 178b2eff4a8..65ad2932672 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -615,6 +615,9 @@ void mconsole_remove(struct mc_request *req)
err_msg = NULL;
err = (*dev->remove)(n, &err_msg);
switch(err){
+ case 0:
+ err_msg = "";
+ break;
case -ENODEV:
if(err_msg == NULL)
err_msg = "Device doesn't exist";
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index f98d26e5138..8bd9204ac1a 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -109,10 +109,6 @@ static inline void ubd_set_bit(__u64 bit, unsigned char *data)
static DEFINE_MUTEX(ubd_lock);
-/* XXX - this made sense in 2.4 days, now it's only used as a boolean, and
- * probably it doesn't make sense even for that. */
-static int do_ubd;
-
static int ubd_open(struct inode * inode, struct file * filp);
static int ubd_release(struct inode * inode, struct file * file);
static int ubd_ioctl(struct inode * inode, struct file * file,
@@ -169,6 +165,7 @@ struct ubd {
struct platform_device pdev;
struct request_queue *queue;
spinlock_t lock;
+ int active;
};
#define DEFAULT_COW { \
@@ -190,6 +187,7 @@ struct ubd {
.shared = 0, \
.cow = DEFAULT_COW, \
.lock = SPIN_LOCK_UNLOCKED, \
+ .active = 0, \
}
/* Protected by ubd_lock */
@@ -507,7 +505,6 @@ static void ubd_handler(void)
struct ubd *dev;
int n;
- do_ubd = 0;
n = os_read_file(thread_fd, &req, sizeof(req));
if(n != sizeof(req)){
printk(KERN_ERR "Pid %d - spurious interrupt in ubd_handler, "
@@ -517,6 +514,7 @@ static void ubd_handler(void)
rq = req.req;
dev = rq->rq_disk->private_data;
+ dev->active = 0;
ubd_finish(rq, req.error);
reactivate_fd(thread_fd, UBD_IRQ);
@@ -1081,11 +1079,12 @@ static void do_ubd_request(request_queue_t *q)
}
}
else {
- if(do_ubd || (req = elv_next_request(q)) == NULL)
+ struct ubd *dev = q->queuedata;
+ if(dev->active || (req = elv_next_request(q)) == NULL)
return;
err = prepare_request(req, &io_req);
if(!err){
- do_ubd = 1;
+ dev->active = 1;
n = os_write_file(thread_fd, (char *) &io_req,
sizeof(io_req));
if(n != sizeof(io_req))
diff --git a/arch/um/include/mconsole.h b/arch/um/include/mconsole.h
index 2666815b6af..b282839c162 100644
--- a/arch/um/include/mconsole.h
+++ b/arch/um/include/mconsole.h
@@ -12,6 +12,8 @@
#define u32 uint32_t
#endif
+#include "sysdep/ptrace.h"
+
#define MCONSOLE_MAGIC (0xcafebabe)
#define MCONSOLE_MAX_DATA (512)
#define MCONSOLE_VERSION 2
diff --git a/arch/um/include/sysdep-x86_64/ptrace.h b/arch/um/include/sysdep-x86_64/ptrace.h
index 66cb400c2c9..62403bd9966 100644
--- a/arch/um/include/sysdep-x86_64/ptrace.h
+++ b/arch/um/include/sysdep-x86_64/ptrace.h
@@ -104,10 +104,6 @@ union uml_pt_regs {
#endif
#ifdef UML_CONFIG_MODE_SKAS
struct skas_regs {
- /* x86_64 ptrace uses sizeof(user_regs_struct) as its register
- * file size, while i386 uses FRAME_SIZE. Therefore, we need
- * to use UM_FRAME_SIZE here instead of HOST_FRAME_SIZE.
- */
unsigned long regs[MAX_REG_NR];
unsigned long fp[HOST_FP_SIZE];
struct faultinfo faultinfo;
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index e85d65deea0..df7d662b98c 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -64,8 +64,6 @@ static void setup_highmem(unsigned long highmem_start,
void mem_init(void)
{
- max_low_pfn = (high_physmem - uml_physmem) >> PAGE_SHIFT;
-
/* clear the zero-page */
memset((void *) empty_zero_page, 0, PAGE_SIZE);
@@ -80,6 +78,7 @@ void mem_init(void)
/* this will put all low memory onto the freelists */
totalram_pages = free_all_bootmem();
+ max_low_pfn = totalram_pages;
#ifdef CONFIG_HIGHMEM
totalhigh_pages = highmem >> PAGE_SHIFT;
totalram_pages += totalhigh_pages;
diff --git a/arch/um/os-Linux/skas/mem.c b/arch/um/os-Linux/skas/mem.c
index b3c11cfa995..9383e8751ae 100644
--- a/arch/um/os-Linux/skas/mem.c
+++ b/arch/um/os-Linux/skas/mem.c
@@ -48,7 +48,7 @@ int multi_op_count = 0;
static inline long do_syscall_stub(struct mm_id * mm_idp, void **addr)
{
unsigned long regs[MAX_REG_NR];
- int n;
+ int n, i;
long ret, offset;
unsigned long * data;
unsigned long * syscall;
@@ -66,9 +66,13 @@ static inline long do_syscall_stub(struct mm_id * mm_idp, void **addr)
(unsigned long) &__syscall_stub_start);
n = ptrace_setregs(pid, regs);
- if(n < 0)
+ if(n < 0){
+ printk("Registers - \n");
+ for(i = 0; i < MAX_REG_NR; i++)
+ printk("\t%d\t0x%lx\n", i, regs[i]);
panic("do_syscall_stub : PTRACE_SETREGS failed, errno = %d\n",
- n);
+ -n);
+ }
wait_stub_done(pid, 0, "do_syscall_stub");
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index dda06789bcb..0564422c155 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -67,7 +67,7 @@ void wait_stub_done(int pid, int sig, char * fname)
if((n < 0) || !WIFSTOPPED(status) ||
(WSTOPSIG(status) != SIGUSR1 && WSTOPSIG(status) != SIGTRAP)){
- unsigned long regs[HOST_FRAME_SIZE];
+ unsigned long regs[MAX_REG_NR];
if(ptrace(PTRACE_GETREGS, pid, 0, regs) < 0)
printk("Failed to get registers from stub, "
@@ -76,7 +76,7 @@ void wait_stub_done(int pid, int sig, char * fname)
int i;
printk("Stub registers -\n");
- for(i = 0; i < HOST_FRAME_SIZE; i++)
+ for(i = 0; i < ARRAY_SIZE(regs); i++)
printk("\t%d - %lx\n", i, regs[i]);
}
panic("%s : failed to wait for SIGUSR1/SIGTRAP, "
@@ -328,7 +328,7 @@ void userspace(union uml_pt_regs *regs)
int copy_context_skas0(unsigned long new_stack, int pid)
{
int err;
- unsigned long regs[HOST_FRAME_SIZE];
+ unsigned long regs[MAX_REG_NR];
unsigned long fp_regs[HOST_FP_SIZE];
unsigned long current_stack = current_stub_stack();
struct stub_data *data = (struct stub_data *) current_stack;
diff --git a/arch/um/os-Linux/sys-i386/registers.c b/arch/um/os-Linux/sys-i386/registers.c
index 79cd93c8c5e..84b44f9cd42 100644
--- a/arch/um/os-Linux/sys-i386/registers.c
+++ b/arch/um/os-Linux/sys-i386/registers.c
@@ -15,7 +15,7 @@
/* These are set once at boot time and not changed thereafter */
-static unsigned long exec_regs[HOST_FRAME_SIZE];
+static unsigned long exec_regs[MAX_REG_NR];
static unsigned long exec_fp_regs[HOST_FP_SIZE];
static unsigned long exec_fpx_regs[HOST_XFP_SIZE];
static int have_fpx_regs = 1;
@@ -101,6 +101,7 @@ void init_registers(int pid)
{
int err;
+ memset(exec_regs, 0, sizeof(exec_regs));
err = ptrace(PTRACE_GETREGS, pid, 0, exec_regs);
if(err)
panic("check_ptrace : PTRACE_GETREGS failed, errno = %d",
@@ -124,7 +125,7 @@ void init_registers(int pid)
void get_safe_registers(unsigned long *regs, unsigned long *fp_regs)
{
- memcpy(regs, exec_regs, HOST_FRAME_SIZE * sizeof(unsigned long));
+ memcpy(regs, exec_regs, sizeof(exec_regs));
if(fp_regs != NULL)
memcpy(fp_regs, exec_fp_regs,
HOST_FP_SIZE * sizeof(unsigned long));
diff --git a/arch/um/os-Linux/sys-x86_64/registers.c b/arch/um/os-Linux/sys-x86_64/registers.c
index a2d7e0c603f..e6fc2179d1b 100644
--- a/arch/um/os-Linux/sys-x86_64/registers.c
+++ b/arch/um/os-Linux/sys-x86_64/registers.c
@@ -14,7 +14,7 @@
/* These are set once at boot time and not changed thereafter */
-static unsigned long exec_regs[HOST_FRAME_SIZE];
+static unsigned long exec_regs[MAX_REG_NR];
static unsigned long exec_fp_regs[HOST_FP_SIZE];
void init_thread_registers(union uml_pt_regs *to)
@@ -72,7 +72,7 @@ void init_registers(int pid)
void get_safe_registers(unsigned long *regs, unsigned long *fp_regs)
{
- memcpy(regs, exec_regs, HOST_FRAME_SIZE * sizeof(unsigned long));
+ memcpy(regs, exec_regs, sizeof(exec_regs));
if(fp_regs != NULL)
memcpy(fp_regs, exec_fp_regs,
HOST_FP_SIZE * sizeof(unsigned long));
diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules
index 813077fb1e5..a9a4b85ca51 100644
--- a/arch/um/scripts/Makefile.rules
+++ b/arch/um/scripts/Makefile.rules
@@ -10,7 +10,7 @@ USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
$(USER_OBJS:.o=.%): \
c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) $(CFLAGS_$(basetarget).o)
$(USER_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
- -Dunix -D__unix__ -D__$(SUBARCH)__
+ -Dunix -D__unix__ -D__$(SUBARCH)__ $(CF)
# These are like USER_OBJS but filter USER_CFLAGS through unprofile instead of
# using it directly.
@@ -19,7 +19,7 @@ UNPROFILE_OBJS := $(foreach file,$(UNPROFILE_OBJS),$(obj)/$(file))
$(UNPROFILE_OBJS:.o=.%): \
c_flags = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS)) $(CFLAGS_$(basetarget).o)
$(UNPROFILE_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
- -Dunix -D__unix__ -D__$(SUBARCH)__
+ -Dunix -D__unix__ -D__$(SUBARCH)__ $(CF)
# The stubs and unmap.o can't try to call mcount or update basic block data
define unprofile
diff --git a/arch/um/sys-i386/delay.c b/arch/um/sys-i386/delay.c
index 2c11b9770e8..d623e074f41 100644
--- a/arch/um/sys-i386/delay.c
+++ b/arch/um/sys-i386/delay.c
@@ -27,14 +27,3 @@ void __udelay(unsigned long usecs)
}
EXPORT_SYMBOL(__udelay);
-
-void __const_udelay(unsigned long usecs)
-{
- int i, n;
-
- n = (loops_per_jiffy * HZ * usecs) / MILLION;
- for(i=0;i<n;i++)
- cpu_relax();
-}
-
-EXPORT_SYMBOL(__const_udelay);
diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c
index 4a8b4202ef9..a939a7ef022 100644
--- a/arch/um/sys-i386/ldt.c
+++ b/arch/um/sys-i386/ldt.c
@@ -394,7 +394,8 @@ static short * host_ldt_entries = NULL;
static void ldt_get_host_info(void)
{
long ret;
- struct ldt_entry * ldt, *tmp;
+ struct ldt_entry * ldt;
+ short *tmp;
int i, size, k, order;
spin_lock(&host_ldt_lock);
diff --git a/arch/um/sys-x86_64/delay.c b/arch/um/sys-x86_64/delay.c
index 137f4446b43..dee5be66da8 100644
--- a/arch/um/sys-x86_64/delay.c
+++ b/arch/um/sys-x86_64/delay.c
@@ -28,14 +28,3 @@ void __udelay(unsigned long usecs)
}
EXPORT_SYMBOL(__udelay);
-
-void __const_udelay(unsigned long usecs)
-{
- unsigned long i, n;
-
- n = (loops_per_jiffy * HZ * usecs) / MILLION;
- for(i=0;i<n;i++)
- cpu_relax();
-}
-
-EXPORT_SYMBOL(__const_udelay);
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-21 03:42:59 +0000