system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-10-16 16:29:20 +00:00
Code Issues Packages Projects Releases Wiki Activity
linux/arch/s390/kernel
History
Peter Oberparleiter d72541f945 s390/debug: add early tracing support 
Debug areas can currently only be used after s390dbf initialization
which occurs as a postcore_initcall. This is too late for tracing
earlier code such as that related to console_init().

This patch introduces a macro for defining a statically initialized
debug area that can be used to trace very early code. The macro is made
available for built-in code only because modules are never running
during early boot.

Example usage:

1. Define static debug area:

  DEFINE_STATIC_DEBUG_INFO(my_debug, "my_debug", 4, 1, 16,
			   &debug_hex_ascii_view);

2. Add trace entry:

  debug_event(&my_debug, 0, "DATA", 4);

Note: The debug area is automatically registered in debugfs during boot.
      A driver must not call any of the debug_register()/_unregister()
      functions on a static debug_info_t!

Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2021-08-25 11:03:35 +02:00
..
syscalls quota: Wire up quotactl_fd syscall 2021-06-07 12:11:24 +02:00
vdso32 s390: enable KCSAN 2021-07-30 17:09:23 +02:00
vdso64 s390: enable KCSAN 2021-07-30 17:09:23 +02:00
.gitignore
alternative.c s390/facilities: move stfl information from lowcore to global data 2021-06-07 17:06:58 +02:00
asm-offsets.c s390/setup: generate asm offsets from struct parmarea 2021-07-27 09:39:16 +02:00
audit.c
audit.h
base.S
cache.c
compat_audit.c
compat_linux.c
compat_linux.h
compat_ptrace.h
compat_signal.c s390/signal: switch to using vdso for sigreturn and syscall restart 2021-07-08 22:09:47 +02:00
cpcmd.c s390/cpcmd: use register pair instead of register asm 2021-06-18 16:41:22 +02:00
crash_dump.c s390/dump: introduce boot data 'oldmem_data' 2021-07-27 09:39:16 +02:00
debug.c s390/debug: add early tracing support 2021-08-25 11:03:35 +02:00
diag.c s390: rename dma section to amode31 2021-08-05 14:10:53 +02:00
dis.c s390/disassembler: add instructions 2021-07-27 09:39:19 +02:00
dumpstack.c s390/unwind: add machine check handler stack 2021-04-05 11:30:07 +02:00
early.c s390: make PCI mio support a machine flag 2021-07-27 09:39:19 +02:00
early_printk.c
ebcdic.c
entry.h s390: remove do_signal() prototype and do_notify_resume() function 2021-08-25 11:03:34 +02:00
entry.S s390/mcck: move register validation to C code 2021-07-05 12:44:23 +02:00
fpu.c s390: convert to generic entry 2021-01-19 12:29:26 +01:00
ftrace.c s390/ftrace: implement hotpatching 2021-08-03 14:31:40 +02:00
ftrace.h s390/ftrace: implement hotpatching 2021-08-03 14:31:40 +02:00
guarded_storage.c
head64.S s390/boot: move dma sections from decompressor to decompressed kernel 2021-07-27 09:39:17 +02:00
idle.c s390/time,idle: get rid of unsigned long long 2021-03-08 10:46:27 +01:00
ima_arch.c
ipl.c s390: rename dma section to amode31 2021-08-05 14:10:53 +02:00
ipl_vmparm.c s390/cio: remove unused include linux/spinlock.h from cio.h 2021-07-27 09:39:13 +02:00
irq.c s390: replace deprecated CPU-hotplug functions 2021-08-05 14:10:53 +02:00
jump_label.c s390/jump_label: print real address in a case of a jump label bug 2021-07-27 09:39:13 +02:00
kdebugfs.c
kexec_elf.c
kexec_image.c
kprobes.c s390/kprobes: use is_kernel() helper 2021-07-05 12:44:23 +02:00
kprobes_insn_page.S
lgr.c
machine_kexec.c s390: rename dma section to amode31 2021-08-05 14:10:53 +02:00
machine_kexec_file.c
machine_kexec_reloc.c
Makefile s390: rename dma section to amode31 2021-08-05 14:10:53 +02:00
mcount.S s390/ftrace: fix ftrace_update_ftrace_func implementation 2021-07-15 12:54:58 +02:00
module.c s390/ftrace: implement hotpatching 2021-08-03 14:31:40 +02:00
nmi.c s390/mcck: move register validation to C code 2021-07-05 12:44:23 +02:00
nospec-branch.c s390/speculation: Use statically initialized const for instructions 2021-06-28 11:18:28 +02:00
nospec-sysfs.c s390/facilities: move stfl information from lowcore to global data 2021-06-07 17:06:58 +02:00
numa.c
os_info.c s390/dump: introduce boot data 'oldmem_data' 2021-07-27 09:39:16 +02:00
perf_cpum_cf.c s390: replace deprecated CPU-hotplug functions 2021-08-05 14:10:53 +02:00
perf_cpum_cf_common.c s390/cpumf: Allow concurrent access for CPU Measurement Counter Facility 2021-07-05 12:44:23 +02:00
perf_cpum_cf_events.c
perf_cpum_sf.c s390/time: convert tod_clock_base to union 2021-02-13 17:17:54 +01:00
perf_event.c s390: Get rid of oprofile leftovers 2021-04-22 13:32:39 +01:00
perf_regs.c
process.c s390/signal: switch to using vdso for sigreturn and syscall restart 2021-07-08 22:09:47 +02:00
processor.c s390: replace deprecated CPU-hotplug functions 2021-08-05 14:10:53 +02:00
ptrace.c s390/traps: add struct to access transactional diagnostic block 2021-06-07 17:06:58 +02:00
reipl.S
relocate_kernel.S
runtime_instr.c
setup.c s390/sclp: reserve memory occupied by sclp early buffer 2021-08-18 10:01:29 +02:00
signal.c s390: remove do_signal() prototype and do_notify_resume() function 2021-08-25 11:03:34 +02:00
smp.c s390: rename dma section to amode31 2021-08-05 14:10:53 +02:00
stacktrace.c stacktrace: Move documentation for arch_stack_walk_reliable() to header 2021-03-10 15:52:31 +01:00
sthyi.c s390/sthyi: use register pair instead of register asm 2021-06-18 16:41:22 +02:00
syscall.c s390: rename PIF_SYSCALL_RESTART to PIF_EXECVE_PGSTE_RESTART 2021-07-08 22:12:17 +02:00
sysinfo.c s390/sysinfo: get rid of register asm 2021-06-18 16:41:23 +02:00
text_amode31.S s390/diag: make restart_part2 a local label 2021-08-25 11:03:34 +02:00
time.c s390/vdso: fix initializing and updating of vdso_data 2021-03-25 21:57:26 +01:00
topology.c s390: replace deprecated CPU-hotplug functions 2021-08-05 14:10:53 +02:00
trace.c
traps.c s390: rename dma section to amode31 2021-08-05 14:10:53 +02:00
unwind_bc.c
uprobes.c s390: Fix fall-through warnings for Clang 2021-07-13 14:43:09 -05:00
uv.c s390/uv: de-duplicate checks for Protected Host Virtualization 2021-07-27 09:39:14 +02:00
vdso.c s390/vdso: add minimal compat vdso 2021-07-08 15:37:28 +02:00
vmlinux.lds.S s390: fix typo in linker script 2021-08-25 11:03:34 +02:00
vtime.c s390/vtime: fix increased steal time accounting 2021-03-15 19:09:25 +01:00