sys: skip kvm const extraction for non i386/amd64

It is impossible to compile a number of definitions in
include/uapi/linux/kvm.h for other platforms, which leads
to syz-extract failing to update constants.

Skip processing of this file for all arches except i386 and
amd64.

This is a hacky and (hopefully) temporary solution until #2754
is implemented.

4 files changed, 4 insertions, 4 deletions

diff --git a/executor/common_kvm_amd64.h b/executor/common_kvm_amd64.h
index c327ef4b8..64987d19d 100644
--- a/executor/common_kvm_amd64.h
+++ b/executor/common_kvm_amd64.h
@@ -267,7 +267,7 @@ struct kvm_opt {
 #define KVM_SETUP_VM (1 << 6)
 
 // syz_kvm_setup_cpu(fd fd_kvmvm, cpufd fd_kvmcpu, usermem vma[24], text ptr[in, array[kvm_text, 1]], ntext len[text], flags flags[kvm_setup_flags], opts ptr[in, array[kvm_setup_opt, 0:2]], nopt len[opts])
-static long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7)
+static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7)
 {
 	const int vmfd = a0;
 	const int cpufd = a1;
diff --git a/executor/common_kvm_arm64.h b/executor/common_kvm_arm64.h
index 36c95cba8..201fa87e9 100644
--- a/executor/common_kvm_arm64.h
+++ b/executor/common_kvm_arm64.h
@@ -17,7 +17,7 @@ struct kvm_opt {
 };
 
 // syz_kvm_setup_cpu(fd fd_kvmvm, cpufd fd_kvmcpu, usermem vma[24], text ptr[in, array[kvm_text, 1]], ntext len[text], flags flags[kvm_setup_flags], opts ptr[in, array[kvm_setup_opt, 0:2]], nopt len[opts])
-static long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7)
+static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7)
 {
 	const int vmfd = a0;
 	const int cpufd = a1;
diff --git a/executor/common_kvm_ppc64.h b/executor/common_kvm_ppc64.h
index 287d7a7b3..283824b43 100644
--- a/executor/common_kvm_ppc64.h
+++ b/executor/common_kvm_ppc64.h
@@ -147,7 +147,7 @@ static void dump_text(const char* mem, unsigned start, unsigned cw, uint32 debug
 #define KVM_SETUP_PPC64_PID1 (1 << 4) // Set PID=1 i.e. not kernel's PID
 
 // syz_kvm_setup_cpu(fd fd_kvmvm, cpufd fd_kvmcpu, usermem vma[24], text ptr[in, array[kvm_text, 1]], ntext len[text], flags flags[kvm_setup_flags_ppc64], opts ptr[in, array[kvm_setup_opt, 0:2]], nopt len[opts])
-static long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7)
+static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7)
 {
 	const int vmfd = a0;
 	const int cpufd = a1;
diff --git a/executor/common_linux.h b/executor/common_linux.h
index 1a25748fc..215ef1a8a 100644
--- a/executor/common_linux.h
+++ b/executor/common_linux.h
@@ -2961,7 +2961,7 @@ error_clear_loop:
 #elif GOARCH_ppc64 || GOARCH_ppc64le
 #include "common_kvm_ppc64.h"
 #elif !GOARCH_arm
-static long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7)
+static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volatile long a2, volatile long a3, volatile long a4, volatile long a5, volatile long a6, volatile long a7)
 {
 	return 0;
 }