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  1. 02 8月, 2018 1 次提交
  3. 29 5月, 2018 3 次提交
  5. 23 5月, 2018 18 次提交
  7. 25 4月, 2018 4 次提交
    • E
      signal/nds32: Use force_sig_fault where appropriate · d808e918
      由 Eric W. Biederman 提交于 
      Filling in struct siginfo before calling force_sig_info a tedious and
error prone process, where once in a great while the wrong fields
are filled out, and siginfo has been inconsistently cleared.

Simplify this process by using the helper force_sig_fault.  Which
takes as a parameters all of the information it needs, ensures
all of the fiddly bits of filling in struct siginfo are done properly
and then calls force_sig_info.

In short about a 5 line reduction in code for every time force_sig_info
is called, which makes the calling function clearer.

Cc: Greentime Hu <green.hu@gmail.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Acked-by: NVincent Chen <deanbo422@gmail.com>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      d808e918
    • E
      signal: Ensure every siginfo we send has all bits initialized · 3eb0f519
      由 Eric W. Biederman 提交于 
      Call clear_siginfo to ensure every stack allocated siginfo is properly
initialized before being passed to the signal sending functions.

Note: It is not safe to depend on C initializers to initialize struct
siginfo on the stack because C is allowed to skip holes when
initializing a structure.

The initialization of struct siginfo in tracehook_report_syscall_exit
was moved from the helper user_single_step_siginfo into
tracehook_report_syscall_exit itself, to make it clear that the local
variable siginfo gets fully initialized.

In a few cases the scope of struct siginfo has been reduced to make it
clear that siginfo siginfo is not used on other paths in the function
in which it is declared.

Instances of using memset to initialize siginfo have been replaced
with calls clear_siginfo for clarity.
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      3eb0f519
    • E
      signal/nds32: Use force_sig(SIGILL) in do_revisn · f6ed1eca
      由 Eric W. Biederman 提交于 
      As originally committed do_revisn would deliver a siginfo for SIGILL
with an si_code composed of random stack contents.  That makes no
sense and is not something userspace can depend on.  So simplify
the code and just use "force_sig(SIG_ILL, current)" instead.

Fixes: 2923f5ea ("nds32: Exception handling")
Cc: Vincent Chen <vincentc@andestech.com>
Cc: Greentime Hu <greentime@andestech.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      f6ed1eca
    • E
      signal/nds32: Use force_sig in unhandled_interruption and unhandled_exceptions · be5c2ff0
      由 Eric W. Biederman 提交于 
      Neither unhandled_interrupt nor unhandled_exceptions fills in any of the
siginfo fields whend sending SIGKILL.  Further because it is SIGKILL
even if all of the fields were filled out appropriately it would be impossible
for the process to read any of the siginfo fields.  So simplfy things and
just use force_sig instead of force_sig_info.

Fixes: 2923f5ea ("nds32: Exception handling")
Cc: Vincent Chen <vincentc@andestech.com>
Cc: Greentime Hu <greentime@andestech.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: NVincent Chen <vincentc@andestech.com>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      be5c2ff0
  9. 19 4月, 2018 1 次提交
    • A
      time: Add an asm-generic/compat.h file · 2b5a9a37
      由 Arnd Bergmann 提交于 
      We have a couple of files that try to include asm/compat.h on
architectures where this is available. Those should generally use the
higher-level linux/compat.h file, but that in turn fails to include
asm/compat.h when CONFIG_COMPAT is disabled, unless we can provide
that header on all architectures.

This adds the asm/compat.h for all remaining architectures to
simplify the dependencies.

Architectures that are getting removed in linux-4.17 are not changed
here, to avoid needless conflicts with the removal patches. Those
architectures are broken by this patch, but we have already shown
that they have no users.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      2b5a9a37
  11. 12 4月, 2018 1 次提交
  13. 16 3月, 2018 3 次提交
  15. 22 2月, 2018 9 次提交