diff --git a/gcc/ada/libgnat/system-vxworks7-aarch64-rtp-smp.ads b/gcc/ada/libgnat/system-vxworks7-aarch64-rtp-smp.ads
index ae67cd0bab8..46b740eadf6 100644
--- a/gcc/ada/libgnat/system-vxworks7-aarch64-rtp-smp.ads
+++ b/gcc/ada/libgnat/system-vxworks7-aarch64-rtp-smp.ads
@@ -151,7 +151,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
-   Support_Atomic_Primitives : constant Boolean := False;
+   Support_Atomic_Primitives : constant Boolean := True;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
diff --git a/gcc/ada/libgnat/system-vxworks7-aarch64.ads b/gcc/ada/libgnat/system-vxworks7-aarch64.ads
index a943ecd9c4a..1aba15b212e 100644
--- a/gcc/ada/libgnat/system-vxworks7-aarch64.ads
+++ b/gcc/ada/libgnat/system-vxworks7-aarch64.ads
@@ -148,7 +148,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
-   Support_Atomic_Primitives : constant Boolean := False;
+   Support_Atomic_Primitives : constant Boolean := True;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
diff --git a/gcc/ada/libgnat/system-vxworks7-arm-rtp-smp.ads b/gcc/ada/libgnat/system-vxworks7-arm-rtp-smp.ads
index 49e6e7adeeb..e81348e8f62 100644
--- a/gcc/ada/libgnat/system-vxworks7-arm-rtp-smp.ads
+++ b/gcc/ada/libgnat/system-vxworks7-arm-rtp-smp.ads
@@ -148,7 +148,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
-   Support_Atomic_Primitives : constant Boolean := False;
+   Support_Atomic_Primitives : constant Boolean := True;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
diff --git a/gcc/ada/libgnat/system-vxworks7-arm.ads b/gcc/ada/libgnat/system-vxworks7-arm.ads
index 6d3218f456f..4ced0f1e606 100644
--- a/gcc/ada/libgnat/system-vxworks7-arm.ads
+++ b/gcc/ada/libgnat/system-vxworks7-arm.ads
@@ -146,7 +146,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
-   Support_Atomic_Primitives : constant Boolean := False;
+   Support_Atomic_Primitives : constant Boolean := True;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
diff --git a/gcc/ada/libgnat/system-vxworks7-ppc-kernel.ads b/gcc/ada/libgnat/system-vxworks7-ppc-kernel.ads
index bddf9511d3b..ef290c06c6d 100644
--- a/gcc/ada/libgnat/system-vxworks7-ppc-kernel.ads
+++ b/gcc/ada/libgnat/system-vxworks7-ppc-kernel.ads
@@ -146,6 +146,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
+   Support_Atomic_Primitives : constant Boolean := False;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
diff --git a/gcc/ada/libgnat/system-vxworks7-ppc-rtp-smp.ads b/gcc/ada/libgnat/system-vxworks7-ppc-rtp-smp.ads
index 3ead19365d2..5bab2e8faca 100644
--- a/gcc/ada/libgnat/system-vxworks7-ppc-rtp-smp.ads
+++ b/gcc/ada/libgnat/system-vxworks7-ppc-rtp-smp.ads
@@ -151,6 +151,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
+   Support_Atomic_Primitives : constant Boolean := False;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
diff --git a/gcc/ada/libgnat/system-vxworks7-ppc64-kernel.ads b/gcc/ada/libgnat/system-vxworks7-ppc64-kernel.ads
index a1a983b15ff..768fbee4bd5 100644
--- a/gcc/ada/libgnat/system-vxworks7-ppc64-kernel.ads
+++ b/gcc/ada/libgnat/system-vxworks7-ppc64-kernel.ads
@@ -148,6 +148,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
+   Support_Atomic_Primitives : constant Boolean := True;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
diff --git a/gcc/ada/libgnat/system-vxworks7-ppc64-rtp-smp.ads b/gcc/ada/libgnat/system-vxworks7-ppc64-rtp-smp.ads
index afdd820601b..75abe4c584d 100644
--- a/gcc/ada/libgnat/system-vxworks7-ppc64-rtp-smp.ads
+++ b/gcc/ada/libgnat/system-vxworks7-ppc64-rtp-smp.ads
@@ -151,6 +151,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
+   Support_Atomic_Primitives : constant Boolean := True;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
diff --git a/gcc/ada/libgnat/system-vxworks7-x86-kernel.ads b/gcc/ada/libgnat/system-vxworks7-x86-kernel.ads
index e34c22aba0b..42ae9838b5d 100644
--- a/gcc/ada/libgnat/system-vxworks7-x86-kernel.ads
+++ b/gcc/ada/libgnat/system-vxworks7-x86-kernel.ads
@@ -146,7 +146,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
-   Support_Atomic_Primitives : constant Boolean := False;
+   Support_Atomic_Primitives : constant Boolean := True;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
diff --git a/gcc/ada/libgnat/system-vxworks7-x86-rtp-smp.ads b/gcc/ada/libgnat/system-vxworks7-x86-rtp-smp.ads
index 68ca423cd12..47dd3aef8ff 100644
--- a/gcc/ada/libgnat/system-vxworks7-x86-rtp-smp.ads
+++ b/gcc/ada/libgnat/system-vxworks7-x86-rtp-smp.ads
@@ -149,7 +149,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
-   Support_Atomic_Primitives : constant Boolean := False;
+   Support_Atomic_Primitives : constant Boolean := True;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
diff --git a/gcc/ada/libgnat/system-vxworks7-x86_64-kernel.ads b/gcc/ada/libgnat/system-vxworks7-x86_64-kernel.ads
index 6504a027a28..7931241652e 100644
--- a/gcc/ada/libgnat/system-vxworks7-x86_64-kernel.ads
+++ b/gcc/ada/libgnat/system-vxworks7-x86_64-kernel.ads
@@ -146,7 +146,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
-   Support_Atomic_Primitives : constant Boolean := False;
+   Support_Atomic_Primitives : constant Boolean := True;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
diff --git a/gcc/ada/libgnat/system-vxworks7-x86_64-rtp-smp.ads b/gcc/ada/libgnat/system-vxworks7-x86_64-rtp-smp.ads
index ffcc78fc809..3c98b4c2ff3 100644
--- a/gcc/ada/libgnat/system-vxworks7-x86_64-rtp-smp.ads
+++ b/gcc/ada/libgnat/system-vxworks7-x86_64-rtp-smp.ads
@@ -149,7 +149,7 @@ private
    Stack_Check_Probes        : constant Boolean := True;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
-   Support_Atomic_Primitives : constant Boolean := False;
+   Support_Atomic_Primitives : constant Boolean := True;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;
