Linux mainline fork with MSM8998 patches | https://mainline.space | Currently supported devices:
OnePlus 5/5T, Xiaomi Mi 6, F(x)tec Pro¹ (2019 QX1000 model) & Sony Xperia XZ Premium (UNTESTED!)
7d2ae3decd
Currently show registers, print memory dumps character by character and
there is no address information, so its a bit difficult to use. For
example before a stack dump looks as follows.
[ 13.650000] Stack:
[ 13.650000] Call trace
[ 13.690000] [<(ptrval)>] ? put_timespec64+0x44/0x60
[ 13.690000] [<(ptrval)>] ? _data_page_fault_handler+0x104/0x10c
[ 13.700000]
[ 13.700000] Code:
[ 13.700000] 13
[ 13.700000] ff
[ 13.700000] ff
[ 13.700000] f9
[ 13.710000] 84
[ 13.710000] 82
[ 13.710000] ff
[ 13.710000] bc
[ 13.710000] 07
[ 13.710000] fd
[ 13.720000] 4e
[ 13.720000] 67
[ 13.720000] 84
[ 13.720000] 62
[ 13.720000] ff
...
This change updates this to print the address and data a word at time.
[ 0.830000] Stack:
[ 0.830000] Call trace:
[ 0.830000] [<(ptrval)>] load_elf_binary+0x744/0xf5c
[ 0.830000] [<(ptrval)>] ? __kernel_read+0x144/0x184
[ 0.830000] [<(ptrval)>] bprm_execve+0x27c/0x3e4
[ 0.830000] [<(ptrval)>] kernel_execve+0x16c/0x1a0
[ 0.830000] [<(ptrval)>] run_init_process+0xa0/0xec
[ 0.830000] [<(ptrval)>] ? kernel_init+0x0/0x14c
[ 0.830000] [<(ptrval)>] kernel_init+0x7c/0x14c
[ 0.830000] [<(ptrval)>] ? calculate_sigpending+0x30/0x40
[ 0.830000] [<(ptrval)>] ret_from_fork+0x1c/0x84
[ 0.830000]
[ 0.830000] c1033dbc: c1033dec
[ 0.830000] c1033dc0: c015258c
[ 0.830000] c1033dc4: c129da00
[ 0.830000] c1033dc8: 00000002
[ 0.830000] c1033dcc: 00000000
[ 0.830000] c1033dd0: c129da00
[ 0.830000] c1033dd4: 00000000
[ 0.830000] c1033dd8: 00000000
[ 0.830000] (c1033ddc:) 00001e04
[ 0.830000] c1033de0: 001501fc
[ 0.830000] c1033de4: c1033e68
[ 0.830000] c1033de8: c0152e60
[ 0.830000] c1033dec: c129da5c
[ 0.830000] c1033df0: c0674a20
[ 0.830000] c1033df4: c1033e50
[ 0.830000] c1033df8: c00e3d6c
[ 0.830000] c1033dfc: c129da5c
[ 0.830000] c1033e00: 00000003
[ 0.830000] c1033e04: 00150000
[ 0.830000] c1033e08: 00002034
[ 0.830000] c1033e0c: 001501fc
[ 0.830000] c1033e10: 00000000
[ 0.830000] c1033e14: 00150000
[ 0.830000] c1033e18: 0014ebbc
[ 0.830000] c1033e1c: 00002000
[ 0.830000] c1033e20: 00000003
[ 0.830000] c1033e24: c12a07e0
[ 0.830000] c1033e28: 00000000
[ 0.830000] c1033e2c: 00000000
[ 0.830000] c1033e30: 00000000
[ 0.830000] c1033e34: 40040000
[ 0.830000] c1033e38: 00000000
[ 0.830000]
[ 0.830000] Code:
[ 0.830000] c00047a4: 9c21fff8
[ 0.830000] c00047a8: d4012000
[ 0.830000] c00047ac: d4011804
[ 0.830000] c00047b0: e4040000
[ 0.830000] c00047b4: 10000005
[ 0.830000] c00047b8: 9c84ffff
[ 0.830000] (c00047bc:) d8030000
[ 0.830000] c00047c0: 03fffffc
[ 0.830000] c00047c4: 9c630001
[ 0.830000] c00047c8: 9d640001
[ 0.830000] c00047cc: 84810000
[ 0.830000] c00047d0: 84610004
Now we are also printing a bit of the stack as well as the code. The
stack is output to help with debugging. There may be concern about
exposing sensitive information on the stack, but we are already dumping
all register content which would have similar sensitive information. So
I am going ahead as this proves useful in investigation.
Signed-off-by: Stafford Horne <shorne@gmail.com>
|
||
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.