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| author |   Dmitry V. Levin <ldv@altlinux.org> | 2019-07-16 16:29:35 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-16 19:23:24 -0700 |
| commit | 2938c1f8faa0b3b95581eba9738cd24f7b791c80 (patch) | |
| tree | 77d608d681e4fef59d3623547e88feaf15948317 /arch | |
| parent | mips: define syscall_get_error() (diff) | |
| download | linux-dev-2938c1f8faa0b3b95581eba9738cd24f7b791c80.tar.xz linux-dev-2938c1f8faa0b3b95581eba9738cd24f7b791c80.zip | |
parisc: define syscall_get_error()
syscall_get_error() is required to be implemented on all architectures in
addition to already implemented syscall_get_nr(), syscall_get_arguments(),
syscall_get_return_value(), and syscall_get_arch() functions in order to
extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request.
Link: http://lkml.kernel.org/r/20190510152812.GD28558@altlinux.org
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Acked-by: Helge Deller <deller@gmx.de> [parisc]
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Elvira Khabirova <lineprinter@altlinux.org>
Cc: Eugene Syromyatnikov <esyr@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Greentime Hu <greentime@andestech.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: kbuild test robot <lkp@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vincent Chen <deanbo422@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/parisc/include/asm/syscall.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h index 80757e43cf2c..00b127a5e09b 100644 --- a/arch/parisc/include/asm/syscall.h +++ b/arch/parisc/include/asm/syscall.h @@ -29,6 +29,13 @@ static inline void syscall_get_arguments(struct task_struct *tsk, args[0] = regs->gr[26]; } +static inline long syscall_get_error(struct task_struct *task, + struct pt_regs *regs) +{ + unsigned long error = regs->gr[28]; + return IS_ERR_VALUE(error) ? error : 0; +} + static inline long syscall_get_return_value(struct task_struct *task, struct pt_regs *regs) { |