From 30634165980deaeead9f4e71e0ff6a5c9d897776 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Mon, 14 Jul 2025 22:39:34 -0400
Subject: usr: libc: Add math.h + musl math impl port

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 lib/libc/src/musl-math/fabsl.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 lib/libc/src/musl-math/fabsl.c

(limited to 'lib/libc/src/musl-math/fabsl.c')

diff --git a/lib/libc/src/musl-math/fabsl.c b/lib/libc/src/musl-math/fabsl.c
new file mode 100644
index 0000000..c4f36ec
--- /dev/null
+++ b/lib/libc/src/musl-math/fabsl.c
@@ -0,0 +1,15 @@
+#include "libm.h"
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+long double fabsl(long double x)
+{
+	return fabs(x);
+}
+#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
+long double fabsl(long double x)
+{
+	union ldshape u = {x};
+
+	u.i.se &= 0x7fff;
+	return u.f;
+}
+#endif
-- 
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