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authorDaniel Golle <daniel@makrotopia.org>2021-01-28 20:10:46 +0000
committerDaniel Golle <daniel@makrotopia.org>2021-03-19 22:13:41 +0000
commit3e88c6f2b179062160d018aa9da2926dbd185f28 (patch)
treef81d8a31c0bb08b7d1ad2929f20d020b4f58bfd9 /jail
parent2cfc26f8456a4d5ba3836c914a742f3d00bad781 (diff)
downloadprocd-3e88c6f2b179062160d018aa9da2926dbd185f28.tar.gz
jail/seccomp: add support for aarch64
Add support for Aarch64 in utrace and ujail. Sort and unify architecture-specific definitions in headers. Use new PTRACE_GET_SYSCALL_INFO call (available since Linux 5.3), for now only for aarch64, but this may potentially unify things and get rid of some #ifdef'ery for other platforms as well. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Diffstat (limited to 'jail')
-rw-r--r--jail/seccomp-bpf.h25
1 files changed, 14 insertions, 11 deletions
diff --git a/jail/seccomp-bpf.h b/jail/seccomp-bpf.h
index bd59ac8..077483f 100644
--- a/jail/seccomp-bpf.h
+++ b/jail/seccomp-bpf.h
@@ -64,19 +64,12 @@ struct seccomp_data {
#define arch_nr (offsetof(struct seccomp_data, arch))
#define syscall_arg(x) (offsetof(struct seccomp_data, args[x]))
-#if defined(__i386__)
-# define REG_SYSCALL REG_EAX
-# define ARCH_NR AUDIT_ARCH_I386
-#elif defined(__x86_64__)
+#if defined(__aarch64__)
+# define REG_SYSCALL regs.regs[8]
+# define ARCH_NR AUDIT_ARCH_AARCH64
+#elif defined(__amd64__)
# define REG_SYSCALL REG_RAX
# define ARCH_NR AUDIT_ARCH_X86_64
-#elif defined(__mips__)
-# define REG_SYSCALL regs[2]
-# if __BYTE_ORDER == __LITTLE_ENDIAN
-# define ARCH_NR AUDIT_ARCH_MIPSEL
-# else
-# define ARCH_NR AUDIT_ARCH_MIPS
-# endif
#elif defined(__arm__) && (defined(__ARM_EABI__) || defined(__thumb__))
# define REG_SYSCALL regs.uregs[7]
# if __BYTE_ORDER == __LITTLE_ENDIAN
@@ -84,6 +77,16 @@ struct seccomp_data {
# else
# define ARCH_NR AUDIT_ARCH_ARMEB
# endif
+#elif defined(__i386__)
+# define REG_SYSCALL REG_EAX
+# define ARCH_NR AUDIT_ARCH_I386
+#elif defined(__mips__)
+# define REG_SYSCALL regs[2]
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+# define ARCH_NR AUDIT_ARCH_MIPSEL
+# else
+# define ARCH_NR AUDIT_ARCH_MIPS
+# endif
#elif defined(__PPC__)
# define REG_SYSCALL regs.gpr[0]
# define ARCH_NR AUDIT_ARCH_PPC