diff --git a/wasm-port/docs/drift-report.md b/wasm-port/docs/drift-report.md
index daf8982..32f7807 100644
--- a/wasm-port/docs/drift-report.md
+++ b/wasm-port/docs/drift-report.md
@@ -29,7 +29,8 @@ semantic rewrites:
 | Python/remap | Python/remap hooks are stubbed at the runtime edge. |
 | Dynamic interpreter path | `interp_base.cc` probe uses standalone `EMC2_HOME` compile-time path boundary. |
 | Realtime scheduler | TP probes seed deterministic status/config data instead of running LinuxCNC realtime process topology. |
-| Kinematics component lifecycle | `trivkins.c`, `5axiskins.c`, and TRT switchkins modules are initialized through LinuxCNC module entry points while HAL component init/ready/exit, HAL pin allocation, and RTAPI module metadata are handled by standalone shims. |
+| Kinematics component lifecycle | Kinematics modules are initialized through LinuxCNC module entry points where native runtime probes exist, while HAL component init/ready/exit, HAL pin allocation, and RTAPI module metadata are handled by standalone shims. |
+| Go math C/C++ linkage | `genserkins` runtime probing compiles vendored `gomath.c` through a narrow C++ wrapper so LinuxCNC `genserfuncs.c` can link to the upstream Go math symbols without editing vendored source. |
 | Browser storage | OPFS remains outside the native core and is not yet connected. |
 
 ## Enforced Non-Drift Rules
@@ -51,8 +52,8 @@ semantic rewrites:
   serial, hexapod, pentapod, and related kinematics sources now have native
   source-probe coverage.
 - Full machine baselines beyond the current identity/trivial, `5axiskins`,
-  TRT, delta, SCARA, PUMA, and other existing runtime probes are not
-  established.
+  TRT, delta, SCARA, PUMA, serial `genserkins`, and other existing runtime
+  probes are not established.
 - Fixture expectations are currently checked against the standalone vendored
   source path, not by running a native LinuxCNC binary for every fixture.
 
diff --git a/wasm-port/docs/source-reuse-map.md b/wasm-port/docs/source-reuse-map.md
index cce0990..8a0285d 100644
--- a/wasm-port/docs/source-reuse-map.md
+++ b/wasm-port/docs/source-reuse-map.md
@@ -38,7 +38,7 @@ Current validation is intentionally mechanical:
 | Identity/trivial kinematics | `src/emc/kinematics/kinematics.h`, `cubic.h`, `kins_util.c`, `trivkins.c` | Copy unchanged | HAL component lifecycle and RTAPI module metadata are replaced by standalone shims; forward/inverse mapping behavior remains LinuxCNC source | Vendor byte sync, per-file source probes, `linuxcnc_kinematics_probe` |
 | Switchable 5-axis bridge kinematics | `src/emc/kinematics/5axiskins.c`, `switchkins.c`, `switchkins.h`, `userkfuncs.c`, plus `src/rtapi/rtapi_ctype.h` | Copy unchanged | HAL pin allocation, HAL component lifecycle, and RTAPI module metadata are standalone runtime edges; switchable 5-axis forward/inverse behavior remains LinuxCNC source | Vendor byte sync, per-file source probes, `linuxcnc_5axis_kinematics_probe` |
 | TRT table-rotary kinematics | `src/emc/kinematics/trtfuncs.c`, `xyzac-trt-kins.c`, `xyzbc-trt-kins.c` | Copy unchanged | HAL pin allocation and switchkins lifecycle stay runtime boundaries; XYZAC/XYZBC TRT forward/inverse behavior remains LinuxCNC source | Vendor byte sync, per-file source probes, `linuxcnc_xyzac_trt_kinematics_probe`, `linuxcnc_xyzbc_trt_kinematics_probe` |
-| Additional non-switchable kinematics | `src/emc/kinematics/corexykins.c`, `rotatekins.c`, `rosekins.c`, `maxkins.c`, `lineardeltakins.c`, `lineardeltakins-common.h`, `rotarydeltakins.c`, `rotarydeltakins-common.h`, `scorbot-kins.c`, `tripodkins.c`, `scarakins.c`, `pumakins.c`, `pumakins.h`, `genhexkins.c`, `genhexkins.h`, `genserfuncs.c`, `genserkins.c`, `genserkins.h`, `ugenserkins.c`, `pentakins.c`, `pentakins.h`, `cubic.c` | Copy unchanged | HAL pin allocation, HAL parameter allocation, HAL component lifecycle, RTAPI module metadata, and userspace test-program process entry remain standalone runtime edges; forward/inverse behavior remains LinuxCNC source where the module exposes it | Vendor byte sync, per-file source probes, `linuxcnc_corexy_kinematics_probe`, `linuxcnc_rotate_kinematics_probe`, `linuxcnc_rose_kinematics_probe`, `linuxcnc_max_kinematics_probe`, `linuxcnc_lineardelta_kinematics_probe`, `linuxcnc_rotarydelta_kinematics_probe`, `linuxcnc_scorbot_kinematics_probe`, `linuxcnc_tripod_kinematics_probe`, `linuxcnc_scara_kinematics_probe`, `linuxcnc_puma_kinematics_probe` |
+| Additional non-switchable kinematics | `src/emc/kinematics/corexykins.c`, `rotatekins.c`, `rosekins.c`, `maxkins.c`, `lineardeltakins.c`, `lineardeltakins-common.h`, `rotarydeltakins.c`, `rotarydeltakins-common.h`, `scorbot-kins.c`, `tripodkins.c`, `scarakins.c`, `pumakins.c`, `pumakins.h`, `genhexkins.c`, `genhexkins.h`, `genserfuncs.c`, `genserkins.c`, `genserkins.h`, `ugenserkins.c`, `pentakins.c`, `pentakins.h`, `cubic.c` | Copy unchanged | HAL pin allocation, HAL parameter allocation, HAL component lifecycle, RTAPI module metadata, Go math C/C++ linkage, and userspace test-program process entry remain standalone runtime edges; forward/inverse behavior remains LinuxCNC source where the module exposes it | Vendor byte sync, per-file source probes, `linuxcnc_corexy_kinematics_probe`, `linuxcnc_rotate_kinematics_probe`, `linuxcnc_rose_kinematics_probe`, `linuxcnc_max_kinematics_probe`, `linuxcnc_lineardelta_kinematics_probe`, `linuxcnc_rotarydelta_kinematics_probe`, `linuxcnc_scorbot_kinematics_probe`, `linuxcnc_tripod_kinematics_probe`, `linuxcnc_scara_kinematics_probe`, `linuxcnc_puma_kinematics_probe`, `linuxcnc_genser_kinematics_probe` |
 | Trajectory planner | `src/emc/tp/tp.c`, `tc.c`, `tcq.c`, `spherical_arc.c`, `blendmath.c`, `sp_scurve.c`, `ruckig_wrapper.c`, plus matching `*.h` files | Copy unchanged | Native realtime scheduling and motion process state are replaced by standalone probe setup | Vendor byte sync, per-file source probes, `linuxcnc_tp_api_probe` |
 | Ruckig C planner support | Selected `src/emc/tp/cruckig/*.c` and `*.h` files in the manifest | Copy unchanged | Used as LinuxCNC planner support code through vendored TP sources | Vendor byte sync, per-file source probes |
 | Posemath | `src/libnml/posemath/posemath.cc`, `_posemath.c`, `gomath.c`, `sincos.c`, and matching headers | Copy unchanged | `gomath.c` is compiled as C; `rtapi.h` shim is C/C++ compatible for this boundary | Vendor byte sync, per-file source probes, TP probe |
@@ -63,8 +63,9 @@ Current validation is intentionally mechanical:
 ## Known Gaps
 
 - Additional non-trivial kinematics implementation files are now extracted at
-  source-probe level. Full runtime machine baselines for serial, hexapod,
-  pentapod, and userspace genser flows are not yet established.
+  source-probe level. Serial `genserkins` has a native runtime baseline; full
+  runtime machine baselines for hexapod, pentapod, and userspace genser flows
+  are not yet established.
 - Browser/WASM C ABI and JS SDK layers are not yet built for the full
   interpreter/planner core.
 - OPFS persistence is not yet connected to INI, tool table, parameter file, or
diff --git a/wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_genser_kinematics_probe.cpp b/wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_genser_kinematics_probe.cpp
new file mode 100644
index 0000000..22f1279
--- /dev/null
+++ b/wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_genser_kinematics_probe.cpp
@@ -0,0 +1,120 @@
+#include <cmath>
+#include <iostream>
+
+#include "emc/kinematics/kinematics.h"
+#include "emc/motion/emcmotcfg.h"
+
+int rtapi_app_main(void);
+void rtapi_app_exit(void);
+
+namespace {
+
+int near(double actual, double expected)
+{
+    return std::fabs(actual - expected) < 1e-6;
+}
+
+int near_joints(const double *actual, const double *expected)
+{
+    for (int index = 0; index < 6; ++index) {
+        if (!near(actual[index], expected[index])) {
+            return 0;
+        }
+    }
+    return 1;
+}
+
+int near_identity_pose(const EmcPose &actual, const double *joints)
+{
+    return near(actual.tran.x, joints[0]) &&
+           near(actual.tran.y, joints[1]) &&
+           near(actual.tran.z, joints[2]) &&
+           near(actual.a, joints[3]) &&
+           near(actual.b, joints[4]) &&
+           near(actual.c, joints[5]) &&
+           near(actual.u, joints[6]) &&
+           near(actual.v, joints[7]) &&
+           near(actual.w, joints[8]);
+}
+
+void print_pose(const char *prefix, const EmcPose &pose)
+{
+    std::cout << prefix << "_xyz="
+              << pose.tran.x << ","
+              << pose.tran.y << ","
+              << pose.tran.z << "\n";
+    std::cout << prefix << "_abcuvw="
+              << pose.a << ","
+              << pose.b << ","
+              << pose.c << ","
+              << pose.u << ","
+              << pose.v << ","
+              << pose.w << "\n";
+}
+
+void print_joints(const char *prefix, const double *joints)
+{
+    std::cout << prefix << "_xyzabcuvw="
+              << joints[0] << ","
+              << joints[1] << ","
+              << joints[2] << ","
+              << joints[3] << ","
+              << joints[4] << ","
+              << joints[5] << ","
+              << joints[6] << ","
+              << joints[7] << ","
+              << joints[8] << "\n";
+}
+
+}  // namespace
+
+int main()
+{
+    const int init_rc = rtapi_app_main();
+    std::cout << "genser_init=" << init_rc << "\n";
+    std::cout << "genser_type=" << kinematicsType() << "\n";
+    std::cout << "genser_switchable=" << kinematicsSwitchable() << "\n";
+
+    double joints[EMCMOT_MAX_JOINTS]{};
+    joints[0] = 10.0;
+    joints[1] = -15.0;
+    joints[2] = 20.0;
+    joints[3] = 5.0;
+    joints[4] = -10.0;
+    joints[5] = 12.0;
+    joints[6] = 7.0;
+    joints[7] = 8.0;
+    joints[8] = 9.0;
+
+    KINEMATICS_FORWARD_FLAGS fflags = 0;
+    KINEMATICS_INVERSE_FLAGS iflags = 0;
+    EmcPose forward_pose{};
+    const int forward_rc = kinematicsForward(joints, &forward_pose, &fflags, &iflags);
+    std::cout << "genser_forward=" << forward_rc << "\n";
+    print_pose("genser_forward", forward_pose);
+
+    double inverse_joints[EMCMOT_MAX_JOINTS]{};
+    for (int index = 0; index < EMCMOT_MAX_JOINTS; ++index) {
+        inverse_joints[index] = joints[index];
+    }
+    const int inverse_rc = kinematicsInverse(&forward_pose, inverse_joints, &iflags, &fflags);
+    std::cout << "genser_inverse=" << inverse_rc << "\n";
+    print_joints("genser_inverse", inverse_joints);
+    std::cout << "genser_roundtrip_joints=" << near_joints(inverse_joints, joints) << "\n";
+    std::cout << "genser_roundtrip_uvw="
+              << (near(inverse_joints[6], joints[6]) &&
+                  near(inverse_joints[7], joints[7]) &&
+                  near(inverse_joints[8], joints[8]))
+              << "\n";
+
+    const int switch_rc = kinematicsSwitch(1);
+    std::cout << "genser_switch_identity=" << switch_rc << "\n";
+    EmcPose identity_pose{};
+    const int identity_forward_rc = kinematicsForward(joints, &identity_pose, &fflags, &iflags);
+    std::cout << "genser_identity_forward=" << identity_forward_rc << "\n";
+    print_pose("genser_identity", identity_pose);
+    std::cout << "genser_identity_near=" << near_identity_pose(identity_pose, joints) << "\n";
+
+    rtapi_app_exit();
+    return 0;
+}
diff --git a/wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_gomath_cxx.cpp b/wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_gomath_cxx.cpp
new file mode 100644
index 0000000..37cf888
--- /dev/null
+++ b/wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_gomath_cxx.cpp
@@ -0,0 +1,3 @@
+#include <stdio.h>
+
+#include "libnml/posemath/gomath.c"
diff --git a/wasm-port/tests/native/verify_native_probes.sh b/wasm-port/tests/native/verify_native_probes.sh
index 2e0fdb9..90a2faf 100755
--- a/wasm-port/tests/native/verify_native_probes.sh
+++ b/wasm-port/tests/native/verify_native_probes.sh
@@ -107,6 +107,8 @@ check_exitcode linuxcnc_scara_kinematics_probe
 check_exitcode linuxcnc_scara_kinematics_probe.run
 check_exitcode linuxcnc_puma_kinematics_probe
 check_exitcode linuxcnc_puma_kinematics_probe.run
+check_exitcode linuxcnc_genser_kinematics_probe
+check_exitcode linuxcnc_genser_kinematics_probe.run
 for name in \
   linuxcnc_tp_tp_source_probe \
   linuxcnc_tp_tc_source_probe \
@@ -393,6 +395,18 @@ grep -Fq "puma_switch_identity=0" "$PUMA_KINEMATICS_STDOUT"
 grep -Fq "puma_identity_forward=0" "$PUMA_KINEMATICS_STDOUT"
 grep -Fq "puma_identity_near=1" "$PUMA_KINEMATICS_STDOUT"
 
+GENSER_KINEMATICS_STDOUT="$BUILD_DIR/linuxcnc_genser_kinematics_probe.run.stdout.log"
+grep -Fq "genser_init=0" "$GENSER_KINEMATICS_STDOUT"
+grep -Fq "genser_type=4" "$GENSER_KINEMATICS_STDOUT"
+grep -Fq "genser_switchable=1" "$GENSER_KINEMATICS_STDOUT"
+grep -Fq "genser_forward=0" "$GENSER_KINEMATICS_STDOUT"
+grep -Fq "genser_inverse=0" "$GENSER_KINEMATICS_STDOUT"
+grep -Fq "genser_roundtrip_joints=1" "$GENSER_KINEMATICS_STDOUT"
+grep -Fq "genser_roundtrip_uvw=1" "$GENSER_KINEMATICS_STDOUT"
+grep -Fq "genser_switch_identity=0" "$GENSER_KINEMATICS_STDOUT"
+grep -Fq "genser_identity_forward=0" "$GENSER_KINEMATICS_STDOUT"
+grep -Fq "genser_identity_near=1" "$GENSER_KINEMATICS_STDOUT"
+
 check_fixture_output() {
   local fixture="$1"
   local expected="$2"
diff --git a/wasm-port/tools/build_native_probes.sh b/wasm-port/tools/build_native_probes.sh
index 011ea96..707d4b5 100755
--- a/wasm-port/tools/build_native_probes.sh
+++ b/wasm-port/tools/build_native_probes.sh
@@ -451,6 +451,18 @@ PUMA_KINEMATICS_PROBE_SOURCES=(
   "$WRAP_DIR/linuxcnc_puma_kinematics_probe.cpp"
 )
 
+GENSER_KINEMATICS_PROBE_SOURCES=(
+  "$VENDOR_DIR/src/emc/kinematics/kins_util.c"
+  "$VENDOR_DIR/src/emc/kinematics/switchkins.c"
+  "$VENDOR_DIR/src/emc/kinematics/userkfuncs.c"
+  "$VENDOR_DIR/src/emc/kinematics/genserfuncs.c"
+  "$VENDOR_DIR/src/emc/kinematics/genserkins.c"
+  "$WRAP_DIR/linuxcnc_gomath_cxx.cpp"
+  "$VENDOR_DIR/src/libnml/posemath/sincos.c"
+  "$WRAP_DIR/linuxcnc_hal_adapter.cpp"
+  "$WRAP_DIR/linuxcnc_genser_kinematics_probe.cpp"
+)
+
 TP_CORE_SOURCES=(
   "$VENDOR_DIR/src/emc/tp/tp.c"
   "$VENDOR_DIR/src/emc/tp/tc.c"
@@ -722,6 +734,13 @@ build_binary_target \
   PUMA_KINEMATICS_PROBE_SOURCES \
   NO_LINK_FLAGS
 
+build_binary_target \
+  linuxcnc_genser_kinematics_probe \
+  "$BUILD_DIR/linuxcnc_genser_kinematics_probe" \
+  TP_FLAGS \
+  GENSER_KINEMATICS_PROBE_SOURCES \
+  NO_LINK_FLAGS
+
 if [[ "$(tr -d '[:space:]' < "$BUILD_DIR/linuxcnc_kinematics_probe.exitcode")" == "0" ]]; then
   set +e
   "$BUILD_DIR/linuxcnc_kinematics_probe" \
@@ -932,6 +951,21 @@ else
     "$BUILD_DIR/linuxcnc_puma_kinematics_probe.run.stderr.log"
 fi
 
+if [[ "$(tr -d '[:space:]' < "$BUILD_DIR/linuxcnc_genser_kinematics_probe.exitcode")" == "0" ]]; then
+  set +e
+  "$BUILD_DIR/linuxcnc_genser_kinematics_probe" \
+    >"$BUILD_DIR/linuxcnc_genser_kinematics_probe.run.stdout.log" \
+    2>"$BUILD_DIR/linuxcnc_genser_kinematics_probe.run.stderr.log"
+  GENSER_KINEMATICS_RUN_RC=$?
+  set -e
+  echo "$GENSER_KINEMATICS_RUN_RC" > "$BUILD_DIR/linuxcnc_genser_kinematics_probe.run.exitcode"
+else
+  rm -f \
+    "$BUILD_DIR/linuxcnc_genser_kinematics_probe.run.exitcode" \
+    "$BUILD_DIR/linuxcnc_genser_kinematics_probe.run.stdout.log" \
+    "$BUILD_DIR/linuxcnc_genser_kinematics_probe.run.stderr.log"
+fi
+
 if [[ "$(tr -d '[:space:]' < "$BUILD_DIR/linuxcnc_tp_api_probe.exitcode")" == "0" ]]; then
   set +e
   "$BUILD_DIR/linuxcnc_tp_api_probe" \