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Lianbo Jiang 475f63ae63 kexec_file: Correctly output debugging information for the PT_LOAD ELF header 
Currently, when we enable the debugging switch to debug kexec_file,
we always get the following incorrect results:

  kexec_file: Crash PT_LOAD elf header. phdr=00000000c988639b vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=51 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=000000003cca69a0 vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=52 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=00000000c584cb9f vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=53 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=00000000cf85d57f vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=54 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=00000000a4a8f847 vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=55 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=00000000272ec49f vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=56 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=00000000ea0b65de vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=57 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=000000001f5e490c vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=58 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=00000000dfe4109e vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=59 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=00000000480ed2b6 vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=60 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=0000000080b65151 vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=61 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=0000000024e31c5e vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=62 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=00000000332e0385 vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=63 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=000000002754d5da vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=64 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=00000000783320dd vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=65 p_offset=0x0
  kexec_file: Crash PT_LOAD elf header. phdr=0000000076fe5b64 vaddr=0x0, paddr=0x0, sz=0x0 e_phnum=66 p_offset=0x0

The reason is that kernel always prints the values of the next PT_LOAD
instead of the current PT_LOAD. Change it to ensure that we can get the
correct debugging information.

[ mingo: Amended changelog, capitalized "ELF". ]

Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Dave Young <dyoung@redhat.com>
Link: https://lore.kernel.org/r/20200804044933.1973-4-lijiang@redhat.com
2020-08-07 01:32:00 +02:00
..
bpf
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2020-08-03 18:27:40 -07:00
cgroup
Merge tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-block
2020-08-03 11:57:03 -07:00
configs
compiler: remove CONFIG_OPTIMIZE_INLINING entirely
2020-04-07 10:43:42 -07:00
debug
Merge tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2020-08-04 13:49:43 -07:00
dma
Merge tag 'docs-5.9' of git://git.lwn.net/linux
2020-08-04 22:47:54 -07:00
entry
entry: Correct 'noinstr' attributes
2020-07-26 15:42:20 +02:00
events
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-08-05 20:13:21 -07:00
gcov
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
irq
Merge tag 'sched-fifo-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-06 11:55:43 -07:00
kcsan
Merge branch 'kcsan' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/core
2020-08-01 09:26:27 +02:00
livepatch
livepatch: Make klp_apply_object_relocs static
2020-05-11 00:31:38 +02:00
locking
Merge tag 'sched-fifo-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-06 11:55:43 -07:00
power
Merge branches 'pm-sleep', 'pm-domains', 'powercap' and 'pm-tools'
2020-08-03 13:12:44 +02:00
printk
Merge tag 'printk-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
2020-08-04 22:22:25 -07:00
rcu
Merge tag 'sched-fifo-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-06 11:55:43 -07:00
sched
Merge tag 'sched-fifo-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-06 11:55:43 -07:00
time
Merge tag 'timers-core-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-04 18:17:37 -07:00
trace
Merge tag 'sched-fifo-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-06 11:55:43 -07:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
acct.c
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
async.c
treewide: Remove uninitialized_var() usage
2020-07-16 12:35:15 -07:00
audit_fsnotify.c
fsnotify: use helpers to access data by data_type
2020-03-23 18:19:06 +01:00
audit_tree.c
audit: Use struct_size() helper in alloc_chunk
2020-06-17 16:43:11 -04:00
audit_watch.c
Merge tag 'fsnotify_for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2020-04-06 08:58:42 -07:00
audit.c
Merge tag 'audit-pr-20200803' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2020-08-04 14:20:26 -07:00
audit.h
revert: 1320a4052e ("audit: trigger accompanying records when no rules present")
2020-07-29 10:00:36 -04:00
auditfilter.c
audit: fix a net reference leak in audit_list_rules_send()
2020-04-22 15:23:10 -04:00
auditsc.c
Merge tag 'audit-pr-20200803' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2020-08-04 14:20:26 -07:00
backtracetest.c
treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()
2020-07-30 11:15:58 -07:00
bounds.c
…
capability.c
…
compat.c
uaccess: Selectively open read or write user access
2020-05-01 12:35:21 +10:00
configs.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
context_tracking.c
context_tracking: Ensure that the critical path cannot be instrumented
2020-06-11 15:14:36 +02:00
cpu_pm.c
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-05-15 11:44:34 -07:00
cpu.c
Merge tag 'sched-core-2020-06-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-06-03 13:06:42 -07:00
crash_core.c
crash_core, vmcoreinfo: Append 'MAX_PHYSMEM_BITS' to vmcoreinfo
2020-07-02 17:56:11 +01:00
crash_dump.c
crash_dump: Remove no longer used saved_max_pfn
2020-04-15 11:21:54 +02:00
cred.c
exec: Teach prepare_exec_creds how exec treats uids & gids
2020-05-20 14:44:21 -05:00
delayacct.c
…
dma.c
…
elfcore.c
…
exec_domain.c
…
exit.c
Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2020-08-04 14:27:25 -07:00
extable.c
kernel/extable.c: use address-of operator on section symbols
2020-04-07 10:43:42 -07:00
fail_function.c
…
fork.c
Merge tag 'close-range-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
2020-08-04 15:12:02 -07:00
freezer.c
…
futex.c
Merge tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2020-08-04 13:49:43 -07:00
gen_kheaders.sh
kbuild: add variables for compression tools
2020-06-06 23:42:01 +09:00
groups.c
mm: remove the pgprot argument to __vmalloc
2020-06-02 10:59:11 -07:00
hung_task.c
kernel/hung_task.c: introduce sysctl to print all traces when a hung task is detected
2020-06-08 11:05:56 -07:00
iomem.c
…
irq_work.c
irq_work, smp: Allow irq_work on call_single_queue
2020-05-28 10:54:15 +02:00
jump_label.c
…
kallsyms.c
Merge tag 'v5.8-rc7' into perf/core, to pick up fixes
2020-07-28 13:18:01 +02:00
kcmp.c
kernel/kcmp.c: Use new infrastructure to fix deadlocks in execve
2020-03-25 10:04:01 -05:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
sched/rt, locking: Use CONFIG_PREEMPTION
2019-12-08 14:37:36 +01:00
Kconfig.preempt
…
kcov.c
kcov: check kcov_softirq in kcov_remote_stop()
2020-06-10 19:14:17 -07:00
kexec_core.c
kexec: add machine_kexec_post_load()
2020-01-08 16:32:55 +00:00
kexec_elf.c
…
kexec_file.c
kexec_file: Correctly output debugging information for the PT_LOAD ELF header
2020-08-07 01:32:00 +02:00
kexec_internal.h
kexec: add machine_kexec_post_load()
2020-01-08 16:32:55 +00:00
kexec.c
kexec: add machine_kexec_post_load()
2020-01-08 16:32:55 +00:00
kheaders.c
…
kmod.c
kmod: make request_module() return an error when autoloading is disabled
2020-04-10 15:36:22 -07:00
kprobes.c
kprobes: Remove unnecessary module_mutex locking from kprobe_optimizer()
2020-07-28 13:19:05 +02:00
ksysfs.c
…
kthread.c
Merge branch 'sched/urgent'
2020-07-08 11:38:59 +02:00
latencytop.c
sysctl: pass kernel pointers to ->proc_handler
2020-04-27 02:07:40 -04:00
Makefile
Merge tag 'core-entry-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-04 21:00:11 -07:00
module_signature.c
…
module_signing.c
…
module-internal.h
…
module.c
dyndbg: rename __verbose section to __dyndbg
2020-07-24 17:00:08 +02:00
notifier.c
mm: remove vmalloc_sync_(un)mappings()
2020-06-02 10:59:12 -07:00
nsproxy.c
nsproxy: support CLONE_NEWTIME with setns()
2020-07-08 11:14:22 +02:00
padata.c
padata: remove padata_parallel_queue
2020-07-23 17:34:18 +10:00
panic.c
bug: Annotate WARN/BUG/stackfail as noinstr safe
2020-06-11 15:14:36 +02:00
params.c
…
pid_namespace.c
pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid
2020-07-19 20:14:42 +02:00
pid.c
Merge tag 'cap-checkpoint-restore-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
2020-08-04 15:02:07 -07:00
profile.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
ptrace.c
ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()
2020-01-18 13:51:39 +01:00
range.c
…
reboot.c
arch: remove unicore32 port
2020-07-01 12:09:13 +03:00
relay.c
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
resource.c
/dev/mem: Revoke mappings when a driver claims the region
2020-05-27 11:10:05 +02:00
rseq.c
rseq: Reject unknown flags on rseq unregister
2019-12-25 10:41:20 +01:00
scs.c
scs: Report SCS usage in bytes rather than number of entries
2020-06-04 16:14:56 +01:00
seccomp.c
seccomp: Introduce addfd ioctl to seccomp user notifier
2020-07-14 16:29:42 -07:00
signal.c
signal: fix typo in dequeue_synchronous_signal()
2020-07-26 23:57:52 +02:00
smp.c
smp: Fix a potential usage of stale nr_cpus
2020-07-22 10:22:04 +02:00
smpboot.c
…
smpboot.h
…
softirq.c
Merge tag 'tasklets-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2020-08-04 13:40:35 -07:00
stackleak.c
gcc-plugins/stackleak: Use asm instrumentation to avoid useless register saving
2020-06-24 07:48:28 -07:00
stacktrace.c
…
stop_machine.c
stop_machine: Make stop_cpus() static
2020-01-17 10:19:21 +01:00
sys_ni.c
…
sys.c
prctl: exe link permission error changed from -EINVAL to -EPERM
2020-07-19 20:14:42 +02:00
sysctl_binary.c
…
sysctl-test.c
kunit: allow kunit tests to be loaded as a module
2020-01-09 16:42:29 -07:00
sysctl.c
sched/uclamp: Add a new sysctl to control RT default boost value
2020-07-29 13:51:47 +02:00
task_work.c
task_work: teach task_work_add() to do signal_wake_up()
2020-06-30 12:18:08 -06:00
taskstats.c
taskstats: fix data-race
2019-12-04 15:18:39 +01:00
test_kprobes.c
…
torture.c
torture: Dump ftrace at shutdown only if requested
2020-06-29 12:01:45 -07:00
tracepoint.c
…
tsacct.c
tsacct: add 64-bit btime field
2019-12-18 18:07:31 +01:00
ucount.c
ucount: Make sure ucounts in /proc/sys/user don't regress again
2020-04-07 21:51:27 +02:00
uid16.c
…
uid16.h
…
umh.c
exec: Implement kernel_execve
2020-07-21 08:24:52 -05:00
up.c
smp/up: Make smp_call_function_single() match SMP semantics
2020-02-07 15:34:12 +01:00
user_namespace.c
nsproxy: add struct nsset
2020-05-09 13:57:12 +02:00
user-return-notifier.c
…
user.c
user.c: make uidhash_table static
2020-06-04 19:06:24 -07:00
usermode_driver.c
umd: Stop using split_argv
2020-07-07 11:58:59 -05:00
utsname_sysctl.c
sysctl: pass kernel pointers to ->proc_handler
2020-04-27 02:07:40 -04:00
utsname.c
nsproxy: add struct nsset
2020-05-09 13:57:12 +02:00
watch_queue.c
Merge tag 'notifications-20200601' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
2020-06-13 09:56:21 -07:00
watchdog_hld.c
…
watchdog.c
kernel/watchdog.c: convert {soft/hard}lockup boot parameters to sysctl aliases
2020-06-08 11:05:56 -07:00
workqueue_internal.h
…
workqueue.c
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
2020-06-17 10:57:41 -07:00