[MIPS] Fixup secure computing stuff.

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

1 files changed, 37 insertions, 0 deletions

diff --git a/include/asm-mips/seccomp.h b/include/asm-mips/seccomp.h
new file mode 100644
index 000000000000..36ed44070256
--- /dev/null
+++ b/include/asm-mips/seccomp.h
@@ -0,0 +1,37 @@
+#ifndef __ASM_SECCOMP_H
+
+#include <linux/thread_info.h>
+#include <linux/unistd.h>
+
+#define __NR_seccomp_read __NR_read
+#define __NR_seccomp_write __NR_write
+#define __NR_seccomp_exit __NR_exit
+#define __NR_seccomp_sigreturn __NR_rt_sigreturn
+
+/*
+ * Kludge alert:
+ *
+ * The generic seccomp code currently allows only a single compat ABI.  Until
+ * this is fixed we priorize O32 as the compat ABI over N32.
+ */
+#ifdef CONFIG_MIPS32_O32
+
+#define TIF_32BIT TIF_32BIT_REGS
+
+#define __NR_seccomp_read_32            4003
+#define __NR_seccomp_write_32           4004
+#define __NR_seccomp_exit_32            4001
+#define __NR_seccomp_sigreturn_32       4193    /* rt_sigreturn */
+
+#elif defined(CONFIG_MIPS32_N32)
+
+#define TIF_32BIT _TIF_32BIT_ADDR
+
+#define __NR_seccomp_read_32            6000
+#define __NR_seccomp_write_32           6001
+#define __NR_seccomp_exit_32            6058
+#define __NR_seccomp_sigreturn_32       6211    /* rt_sigreturn */
+
+#endif /* CONFIG_MIPS32_O32 */
+
+#endif /* __ASM_SECCOMP_H */