linux.git/arch/mips/include/asm/syscall.h, branch v3.14 Linux kernel source tree MIPS: Fix syscall tracing interface 2014-03-17T14:38:38+00:00 Lars Persson lars.persson@axis.com 2014-03-17T11:14:13+00:00 86ca57b5a5525dbf89fc2a3285781fae807276b0 Fix pointer computation for stack-based arguments. Signed-off-by: Lars Persson <larper@axis.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6620/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Fix pointer computation for stack-based arguments.

Signed-off-by: Lars Persson <larper@axis.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6620/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: asm: syscall: Fix copying system call arguments 2014-03-17T14:34:28+00:00 Markos Chandras markos.chandras@imgtec.com 2014-01-22T14:39:57+00:00 a8031d2ce15bdb90baeae02d7a231ccece73da8b The syscall_get_arguments function expects the arguments to be copied to the '*args' argument but instead a local variable was used to hold the system call argument. As a result of which, this variable was never passed to the filter and any filter testing the system call arguments would fail. This is fixed by passing the '*args' variable as the destination memory for the system call arguments. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6402/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
The syscall_get_arguments function expects the arguments to be copied
to the '*args' argument but instead a local variable was used to hold
the system call argument. As a result of which, this variable was
never passed to the filter and any filter testing the system call
arguments would fail. This is fixed by passing the '*args' variable
as the destination memory for the system call arguments.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6402/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Fix randconfig build error. 2014-03-06T19:52:28+00:00 Ralf Baechle ralf@linux-mips.org 2014-02-10T17:00:17+00:00 f5179287b016cc61d6ad77b4a15fab9b6932df83 CC arch/mips/kernel/ptrace.o In file included from arch/mips/kernel/ptrace.c:42:0: arch/mips/kernel/ptrace.c: In function ‘mips_get_syscall_arg’: /home/ralf/src/linux/linux-mips/arch/mips/include/asm/syscall.h:60:1: error: control reaches end of non-void function [-Werror=return-type] cc1: all warnings being treated as errors make[2]: *** [arch/mips/kernel/ptrace.o] Error 1 make[1]: *** [arch/mips/kernel] Error 2 make: *** [arch/mips] Error 2 Fixed by marking the end of mips_get_syscall_arg() as unreachable. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
  CC      arch/mips/kernel/ptrace.o
In file included from arch/mips/kernel/ptrace.c:42:0:
arch/mips/kernel/ptrace.c: In function ‘mips_get_syscall_arg’:
/home/ralf/src/linux/linux-mips/arch/mips/include/asm/syscall.h:60:1: error: control reaches end of non-void function [-Werror=return-type]
cc1: all warnings being treated as errors
make[2]: *** [arch/mips/kernel/ptrace.o] Error 1
make[1]: *** [arch/mips/kernel] Error 2
make: *** [arch/mips] Error 2

Fixed by marking the end of mips_get_syscall_arg() as unreachable.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Fix build error seen in some configurations 2014-01-23T12:02:34+00:00 Guenter Roeck linux@roeck-us.net 2013-11-25T23:21:00+00:00 63238f2cc5518e1c45a3418fc0ac0f560dafe7ef The following build error is seen if CONFIG_32BIT is undefined, CONFIG_64BIT is defined, and CONFIG_MIPS32_O32 is undefined. asm/syscall.h: In function 'mips_get_syscall_arg': arch/mips/include/asm/syscall.h:32:16: error: unused variable 'usp' [-Werror=unused-variable] cc1: all warnings being treated as errors Fixes: c0ff3c53d4f9 ('MIPS: Enable HAVE_ARCH_TRACEHOOK') Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: David Daney <david.daney@cavium.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6160/ 
The following build error is seen if CONFIG_32BIT is undefined,
CONFIG_64BIT is defined, and CONFIG_MIPS32_O32 is undefined.

asm/syscall.h: In function 'mips_get_syscall_arg':
arch/mips/include/asm/syscall.h:32:16: error: unused variable 'usp' [-Werror=unused-variable]
cc1: all warnings being treated as errors

Fixes: c0ff3c53d4f9 ('MIPS: Enable HAVE_ARCH_TRACEHOOK')
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6160/
MIPS: ftrace: Add support for syscall tracepoints. 2013-10-29T20:25:16+00:00 Ralf Baechle ralf@linux-mips.org 2013-09-06T18:24:48+00:00 1d7bf993e0731b4ac790667c196b2a2d787f95c3 Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Move audit_arch() helper function to __syscall_get_arch(). 2013-10-29T20:25:13+00:00 Ralf Baechle ralf@linux-mips.org 2012-09-26T18:16:47+00:00 bec9b2b2c164455e2cd1103c9059d4f8e5926416 Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Enable HAVE_ARCH_TRACEHOOK. 2013-10-29T20:25:11+00:00 Ralf Baechle ralf@linux-mips.org 2012-08-17T06:22:04+00:00 c0ff3c53d4f99f5e0ac5fc30ad77f26159b347e0 This enables /proc/<pid>/syscall and the ptrace PTRACE_GETREGSET and PTRACE_SETREGSET operations. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
This enables /proc/<pid>/syscall and the ptrace PTRACE_GETREGSET and
PTRACE_SETREGSET operations.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Provide arch_syscall_addr. 2013-10-29T20:25:01+00:00 Ralf Baechle ralf@linux-mips.org 2012-07-13T21:38:17+00:00 19e2e172f0ed2552793ecef506b00c3fa3421845 The generic version is wrong for MIPS. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
The generic version is wrong for MIPS.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>