According to manpage the syscall nr is stored in r0
and return value in r3 for powerpc. Define it so we
can use seccomp and utrace on powerpc.
Signed-off-by: Wojciech Dubowik <wojciech.dubo...@neratec.com>
---
jail/seccomp-bpf.h | 3 +++
trace/trace.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/jail/seccomp-bpf.h b/jail/seccomp-bpf.h
index fc3ffe7..fd6b3e2 100644
--- a/jail/seccomp-bpf.h
+++ b/jail/seccomp-bpf.h
@@ -81,6 +81,9 @@ struct seccomp_data {
# else
# define ARCH_NR AUDIT_ARCH_ARMEB
# endif
+#elif defined(__PPC__)
+# define REG_SYSCALL regs.gpr[0]
+# define ARCH_NR AUDIT_ARCH_PPC
#else
# warning "Platform does not support seccomp filter yet"
# define REG_SYSCALL 0
diff --git a/trace/trace.c b/trace/trace.c
index 665c22e..78b99dd 100644
--- a/trace/trace.c
+++ b/trace/trace.c
@@ -58,6 +58,9 @@
# if defined(__ARM_EABI__)
# define reg_retval_nr _offsetof(struct user, regs.uregs[0])
# endif
+#elif defined(__PPC__)
+#define reg_syscall_nr _offsetof(struct user, regs.gpr[0])
+#define reg_retval_nr _offsetof(struct user, regs.gpr[3])
#else
#error tracing is not supported on this architecture
#endif
--
2.17.1
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