Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
L
linux
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
Analytics
Analytics
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Commits
Issue Boards
Open sidebar
nexedi
linux
Commits
e40c2ec6
Commit
e40c2ec6
authored
Oct 11, 2009
by
Russell King
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
ARM: Dump code/mem oops lines with the appropriate log level
Signed-off-by:
Russell King
<
rmk+kernel@arm.linux.org.uk
>
parent
d191fe09
Changes
1
Show whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
17 additions
and
16 deletions
+17
-16
arch/arm/kernel/traps.c
arch/arm/kernel/traps.c
+17
-16
No files found.
arch/arm/kernel/traps.c
View file @
e40c2ec6
...
...
@@ -45,7 +45,7 @@ static int __init user_debug_setup(char *str)
__setup
(
"user_debug="
,
user_debug_setup
);
#endif
static
void
dump_mem
(
const
char
*
str
,
unsigned
long
bottom
,
unsigned
long
top
);
static
void
dump_mem
(
const
char
*
,
const
char
*
,
unsigned
long
,
unsigned
long
);
void
dump_backtrace_entry
(
unsigned
long
where
,
unsigned
long
from
,
unsigned
long
frame
)
{
...
...
@@ -59,7 +59,7 @@ void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long
#endif
if
(
in_exception_text
(
where
))
dump_mem
(
"Exception stack"
,
frame
+
4
,
frame
+
4
+
sizeof
(
struct
pt_regs
));
dump_mem
(
"
"
,
"
Exception stack"
,
frame
+
4
,
frame
+
4
+
sizeof
(
struct
pt_regs
));
}
#ifndef CONFIG_ARM_UNWIND
...
...
@@ -81,7 +81,8 @@ static int verify_stack(unsigned long sp)
/*
* Dump out the contents of some memory nicely...
*/
static
void
dump_mem
(
const
char
*
str
,
unsigned
long
bottom
,
unsigned
long
top
)
static
void
dump_mem
(
const
char
*
lvl
,
const
char
*
str
,
unsigned
long
bottom
,
unsigned
long
top
)
{
unsigned
long
first
;
mm_segment_t
fs
;
...
...
@@ -95,7 +96,7 @@ static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
fs
=
get_fs
();
set_fs
(
KERNEL_DS
);
printk
(
"%s
(0x%08lx to 0x%08lx)
\n
"
,
str
,
bottom
,
top
);
printk
(
"%s
%s(0x%08lx to 0x%08lx)
\n
"
,
lvl
,
str
,
bottom
,
top
);
for
(
first
=
bottom
&
~
31
;
first
<
top
;
first
+=
32
)
{
unsigned
long
p
;
...
...
@@ -113,13 +114,13 @@ static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
sprintf
(
str
+
i
*
9
,
" ????????"
);
}
}
printk
(
"%
04lx:%s
\n
"
,
first
&
0xffff
,
str
);
printk
(
"%
s%04lx:%s
\n
"
,
lvl
,
first
&
0xffff
,
str
);
}
set_fs
(
fs
);
}
static
void
dump_instr
(
struct
pt_regs
*
regs
)
static
void
dump_instr
(
const
char
*
lvl
,
struct
pt_regs
*
regs
)
{
unsigned
long
addr
=
instruction_pointer
(
regs
);
const
int
thumb
=
thumb_mode
(
regs
);
...
...
@@ -152,7 +153,7 @@ static void dump_instr(struct pt_regs *regs)
break
;
}
}
printk
(
"
Code: %s
\n
"
,
str
);
printk
(
"
%sCode: %s
\n
"
,
lvl
,
str
);
set_fs
(
fs
);
}
...
...
@@ -228,18 +229,18 @@ static void __die(const char *str, int err, struct thread_info *thread, struct p
struct
task_struct
*
tsk
=
thread
->
task
;
static
int
die_counter
;
printk
(
"Internal error: %s: %x [#%d]"
S_PREEMPT
S_SMP
"
\n
"
,
printk
(
KERN_EMERG
"Internal error: %s: %x [#%d]"
S_PREEMPT
S_SMP
"
\n
"
,
str
,
err
,
++
die_counter
);
print_modules
();
__show_regs
(
regs
);
printk
(
"Process %
s (pid: %d, stack limit = 0x%p)
\n
"
,
tsk
->
comm
,
task_pid_nr
(
tsk
),
thread
+
1
);
printk
(
KERN_EMERG
"Process %.*
s (pid: %d, stack limit = 0x%p)
\n
"
,
TASK_COMM_LEN
,
tsk
->
comm
,
task_pid_nr
(
tsk
),
thread
+
1
);
if
(
!
user_mode
(
regs
)
||
in_interrupt
())
{
dump_mem
(
"Stack: "
,
regs
->
ARM_sp
,
dump_mem
(
KERN_EMERG
,
"Stack: "
,
regs
->
ARM_sp
,
THREAD_SIZE
+
(
unsigned
long
)
task_stack_page
(
tsk
));
dump_backtrace
(
regs
,
tsk
);
dump_instr
(
regs
);
dump_instr
(
KERN_EMERG
,
regs
);
}
}
...
...
@@ -353,7 +354,7 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
if
(
user_debug
&
UDBG_UNDEFINED
)
{
printk
(
KERN_INFO
"%s (%d): undefined instruction: pc=%p
\n
"
,
current
->
comm
,
task_pid_nr
(
current
),
pc
);
dump_instr
(
regs
);
dump_instr
(
KERN_INFO
,
regs
);
}
#endif
...
...
@@ -404,7 +405,7 @@ static int bad_syscall(int n, struct pt_regs *regs)
if
(
user_debug
&
UDBG_SYSCALL
)
{
printk
(
KERN_ERR
"[%d] %s: obsolete system call %08x.
\n
"
,
task_pid_nr
(
current
),
current
->
comm
,
n
);
dump_instr
(
regs
);
dump_instr
(
KERN_ERR
,
regs
);
}
#endif
...
...
@@ -583,7 +584,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
if
(
user_debug
&
UDBG_SYSCALL
)
{
printk
(
"[%d] %s: arm syscall %d
\n
"
,
task_pid_nr
(
current
),
current
->
comm
,
no
);
dump_instr
(
regs
);
dump_instr
(
""
,
regs
);
if
(
user_mode
(
regs
))
{
__show_regs
(
regs
);
c_backtrace
(
regs
->
ARM_fp
,
processor_mode
(
regs
));
...
...
@@ -660,7 +661,7 @@ baddataabort(int code, unsigned long instr, struct pt_regs *regs)
if
(
user_debug
&
UDBG_BADABORT
)
{
printk
(
KERN_ERR
"[%d] %s: bad data abort: code %d instr 0x%08lx
\n
"
,
task_pid_nr
(
current
),
current
->
comm
,
code
,
instr
);
dump_instr
(
regs
);
dump_instr
(
KERN_ERR
,
regs
);
show_pte
(
current
->
mm
,
addr
);
}
#endif
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment