6 files changed, 37 insertions, 0 deletions
diff --git a/src/internal/libm.h b/src/internal/libm.h
index 09fcfde3..a52a0b83 100644
--- a/src/internal/libm.h
+++ b/src/internal/libm.h
@@ -216,4 +216,11 @@ extern int __signgam;
 hidden double __lgamma_r(double, int *);
 hidden float __lgammaf_r(float, int *);
 
+/* error handling functions */
+hidden float __math_xflowf(uint32_t, float);
+hidden float __math_uflowf(uint32_t);
+hidden float __math_oflowf(uint32_t);
+hidden float __math_divzerof(uint32_t);
+hidden float __math_invalidf(float);
+
 #endif
diff --git a/src/math/__math_divzerof.c b/src/math/__math_divzerof.c
new file mode 100644
index 00000000..ce046f3e
--- /dev/null
+++ b/src/math/__math_divzerof.c
@@ -0,0 +1,6 @@
+#include "libm.h"
+
+float __math_divzerof(uint32_t sign)
+{
+	return fp_barrierf(sign ? -1.0f : 1.0f) / 0.0f;
+}
diff --git a/src/math/__math_invalidf.c b/src/math/__math_invalidf.c
new file mode 100644
index 00000000..357d4b12
--- /dev/null
+++ b/src/math/__math_invalidf.c
@@ -0,0 +1,6 @@
+#include "libm.h"
+
+float __math_invalidf(float x)
+{
+	return (x - x) / (x - x);
+}
diff --git a/src/math/__math_oflowf.c b/src/math/__math_oflowf.c
new file mode 100644
index 00000000..fa7d0620
--- /dev/null
+++ b/src/math/__math_oflowf.c
@@ -0,0 +1,6 @@
+#include "libm.h"
+
+float __math_oflowf(uint32_t sign)
+{
+	return __math_xflowf(sign, 0x1p97f);
+}
diff --git a/src/math/__math_uflowf.c b/src/math/__math_uflowf.c
new file mode 100644
index 00000000..94d50f2b
--- /dev/null
+++ b/src/math/__math_uflowf.c
@@ -0,0 +1,6 @@
+#include "libm.h"
+
+float __math_uflowf(uint32_t sign)
+{
+	return __math_xflowf(sign, 0x1p-95f);
+}
diff --git a/src/math/__math_xflowf.c b/src/math/__math_xflowf.c
new file mode 100644
index 00000000..f2c84784
--- /dev/null
+++ b/src/math/__math_xflowf.c
@@ -0,0 +1,6 @@
+#include "libm.h"
+
+float __math_xflowf(uint32_t sign, float y)
+{
+	return eval_as_float(fp_barrierf(sign ? -y : y) * y);
+}