Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6e345746 authored by Markos Chandras's avatar Markos Chandras Committed by Ralf Baechle
Browse files

MIPS: asm: syscall: Define syscall_get_arch 



This effectively renames __syscall_get_arch to syscall_get_arch
and implements a compatible interface for the seccomp API.
The seccomp code (kernel/seccomp.c) expects a syscall_get_arch
function to be defined for every architecture, so we drop
the leading underscores from the existing function.

This also makes use of the 'task' argument to determine the type
the process instead of assuming the process has the same
characteristics as the kernel it's running on.

Signed-off-by: default avatarMarkos Chandras <markos.chandras@imgtec.com>
Reviewed-by: default avatarPaul Burton <paul.burton@imgtec.com>
Reviewed-by: default avatarJames Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6398/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 22feadbe

arch/mips/include/asm/syscall.h

+4 −2
Original line number Diff line number Diff line
@@ -107,10 +107,12 @@ extern const unsigned long sys_call_table[]; 
extern const unsigned long sys32_call_table[];

extern const unsigned long sysn32_call_table[];



static inline int __syscall_get_arch(void)

static inline int syscall_get_arch(struct task_struct *task,

				   struct pt_regs *regs)

{

	int arch = EM_MIPS;

#ifdef CONFIG_64BIT

	if (!test_tsk_thread_flag(task, TIF_32BIT_REGS))

		arch |= __AUDIT_ARCH_64BIT;

#endif

#if defined(__LITTLE_ENDIAN)

arch/mips/kernel/ptrace.c

+1 −1
Original line number Diff line number Diff line
@@ -677,7 +677,7 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs) 
	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))

		trace_sys_enter(regs, regs->regs[2]);



	audit_syscall_entry(__syscall_get_arch(),

	audit_syscall_entry(syscall_get_arch(current, regs),

			    regs->regs[2],

			    regs->regs[4], regs->regs[5],

			    regs->regs[6], regs->regs[7]);