From: John Hodge <tpg@mutabah.net>
Date: Sat, 8 Jun 2013 09:37:33 +0000 (+0800)
Subject: Usermode/libm - Stubbed up a quick libm (using gcc builtins)
X-Git-Tag: rel0.15~447
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=e5624832d0c6535be32fb0452c4ce8e8637b0ad4;p=tpg%2Facess2.git

Usermode/libm - Stubbed up a quick libm (using gcc builtins)
---

diff --git a/Usermode/Libraries/libm.so_src/Makefile b/Usermode/Libraries/libm.so_src/Makefile
new file mode 100644
index 00000000..1c6df334
--- /dev/null
+++ b/Usermode/Libraries/libm.so_src/Makefile
@@ -0,0 +1,17 @@
+#
+# Acess2 C Library (Math)
+# - By John Hodge (thePowersGang)
+#
+
+-include ../Makefile.cfg
+
+CPPFLAGS += 
+CFLAGS   += -Werror -Wextra
+ASFLAGS  +=
+LDFLAGS  += 
+
+OBJ  = stub.o pow.o
+BIN := libm.so
+
+include ../Makefile.tpl
+
diff --git a/Usermode/Libraries/libm.so_src/include_exp/math.h b/Usermode/Libraries/libm.so_src/include_exp/math.h
new file mode 100644
index 00000000..349547ed
--- /dev/null
+++ b/Usermode/Libraries/libm.so_src/include_exp/math.h
@@ -0,0 +1,13 @@
+/*
+ * Acess2 C Library (Maths)
+ * - By John Hodge (thePowersGang)
+ *
+ * math.h
+ * - C99 Header
+ */
+#ifndef _LIBM__MATH_H_
+#define _LIBM__MATH_H_
+
+extern double	pow(double x, double y);
+
+#endif
diff --git a/Usermode/Libraries/libm.so_src/pow.c b/Usermode/Libraries/libm.so_src/pow.c
new file mode 100644
index 00000000..f35d7c25
--- /dev/null
+++ b/Usermode/Libraries/libm.so_src/pow.c
@@ -0,0 +1,18 @@
+/*
+ * Acess2 C Library (Maths)
+ * - By John Hodge (thePowersGang)
+ *
+ * pow.c
+ * - pow(), powf() and powl()
+ */
+#include <math.h>
+
+// === CODE ===
+double pow(double x, double y)
+{
+	if( x == 1.0f )
+		return 1.0f;
+	if( y == 0.0f )
+		return 1.0f;
+	return __builtin_pow(x,y);
+}
diff --git a/Usermode/Libraries/libm.so_src/stub.c b/Usermode/Libraries/libm.so_src/stub.c
new file mode 100644
index 00000000..1c6c52a8
--- /dev/null
+++ b/Usermode/Libraries/libm.so_src/stub.c
@@ -0,0 +1,14 @@
+/*
+ * Acess2 C Library (Maths)
+ * - By John Hodge (thePowersGang)
+ *
+ * stub.c
+ * - Provides SoMain (unused)
+ */
+
+// === CODE ===
+int SoMain(void)
+{
+	return 0;
+}
+