arch: Add parisc architecture support

This patch (v4) adds support for the parisc and parisc64 architectures
to libseccomp.

I didn't split up the patch, because it's pretty trivial.
Those parisc-specific files gets added:
 src/arch-parisc-syscalls.c
 src/arch-parisc.c
 src/arch-parisc.h
 src/arch-parisc64.c

All other changes are trivial because they simply add parisc-specific
case statements in variouse switch statements.

I did ran a "make check" on x86-64 and parisc and all testcases succeeded.
All live testcases succeed as well when running "./regression -T live".

The patch applies cleanly to current libseccomp git head.

Changes between v4 and v3 of this patch:
- Added parisc arch to arch-syscall-check.c and fixup syscall table as
  needed
- Fixed copyright notices in parisc files as suggested by Mike Frysinger

Changes between v3 and v2 of this patch:
- Stripped out patch which reports if a check was skipped because
  valgrind isn't installed.
- Added tuxcall pseudo syscall for 19-sim-missing_syscalls testcase
- Added sysmips pseudo syscall for 29-sim-pseudo_syscall testcase

Changes between v2 and v1 of this patch:
- Enabled seccomp mode 2 regression tests on parisc. Kernel support for
  hppa was added in kernel 4.6-rc1 and backported into the kernel v4.5.2
  stable series.

Signed-off-by: Helge Deller <deller@gmx.de>
[PM: corrected a number or errors from 'make check-syntax']
Signed-off-by: Paul Moore <paul@paul-moore.com>

3 files changed, 14 insertions, 0 deletions

diff --git a/tools/scmp_arch_detect.c b/tools/scmp_arch_detect.c
index 4b452d1..ad43f2d 100644
--- a/tools/scmp_arch_detect.c
+++ b/tools/scmp_arch_detect.c
@@ -99,6 +99,12 @@ int main(int argc, char *argv[])
 		case SCMP_ARCH_MIPSEL64N32:
 			printf("mipsel64n32\n");
 			break;
+		case SCMP_ARCH_PARISC:
+			printf("parisc\n");
+			break;
+		case SCMP_ARCH_PARISC64:
+			printf("parisc64\n");
+			break;
 		case SCMP_ARCH_PPC:
 			printf("ppc\n");
 			break;
diff --git a/tools/scmp_bpf_sim.c b/tools/scmp_bpf_sim.c
index a0cf6d1..3d3204a 100644
--- a/tools/scmp_bpf_sim.c
+++ b/tools/scmp_bpf_sim.c
@@ -265,6 +265,10 @@ int main(int argc, char *argv[])
 				arch = AUDIT_ARCH_MIPS64N32;
 			else if (strcmp(optarg, "mipsel64n32") == 0)
 				arch = AUDIT_ARCH_MIPSEL64N32;
+			else if (strcmp(optarg, "parisc") == 0)
+				arch = AUDIT_ARCH_PARISC;
+			else if (strcmp(optarg, "parisc64") == 0)
+				arch = AUDIT_ARCH_PARISC64;
 			else if (strcmp(optarg, "ppc") == 0)
 				arch = AUDIT_ARCH_PPC;
 			else if (strcmp(optarg, "ppc64") == 0)
diff --git a/tools/util.c b/tools/util.c
index cc48647..7122335 100644
--- a/tools/util.c
+++ b/tools/util.c
@@ -62,6 +62,10 @@
 #elif __MIPSEL__
 #define ARCH_NATIVE		AUDIT_ARCH_MIPSEL64N32
 #endif /* _MIPS_SIM_NABI32 */
+#elif __hppa64__
+#define ARCH_NATIVE		AUDIT_ARCH_PARISC64
+#elif __hppa__
+#define ARCH_NATIVE		AUDIT_ARCH_PARISC
 #elif __PPC64__
 #ifdef __BIG_ENDIAN__
 #define ARCH_NATIVE		AUDIT_ARCH_PPC64