Feat: added math library

Used Plan9's libc as starting point. This cleans up dangling references
due to loss of libc.

5 files changed, 56 insertions, 0 deletions

diff --git a/sys/linux/amd64/arch/types.h b/sys/linux/amd64/arch/types.h
index d22169c..b6bcd3d 100644
--- a/sys/linux/amd64/arch/types.h
+++ b/sys/linux/amd64/arch/types.h
@@ -1,5 +1,16 @@
 #pragma once
 
+typedef union sys·DoubleWord sys·DoubleWord;
+
+/* little-endian */
+union sys·DoubleWord
+{
+    double x;
+    struct{
+        uint32 lo;
+        uint32 hi;
+    };
+};
 #if 0
 /*
  * copied from musl:
diff --git a/sys/linux/arm/arch/types.h b/sys/linux/arm/arch/types.h
index 536ca5f..8a59abb 100644
--- a/sys/linux/arm/arch/types.h
+++ b/sys/linux/arm/arch/types.h
@@ -1,5 +1,15 @@
 #pragma once
 
+typedef union sys·DoubleWord sys·DoubleWord;
+
+union sys·DoubleWord
+{
+    double x;
+    struct{
+        uint32 lo;
+        uint32 hi;
+    };
+};
 #if 0
 /*
  * copied from musl:
diff --git a/sys/linux/arm64/arch/types.h b/sys/linux/arm64/arch/types.h
index 65d05f6..3cb2277 100644
--- a/sys/linux/arm64/arch/types.h
+++ b/sys/linux/arm64/arch/types.h
@@ -1,5 +1,17 @@
 #pragma once
 
+typedef union sys·DoubleWord sys·DoubleWord;
+
+/* little-endian */
+union sys·DoubleWord
+{
+    double x;
+    struct{
+        uint32 lo;
+        uint32 hi;
+    };
+};
+
 #if 0
 struct sys·Info
 {
diff --git a/sys/linux/i386/arch/types.h b/sys/linux/i386/arch/types.h
index be2421a..0e39df6 100644
--- a/sys/linux/i386/arch/types.h
+++ b/sys/linux/i386/arch/types.h
@@ -1,5 +1,16 @@
 #pragma once
 
+typedef union sys·DoubleWord sys·DoubleWord;
+
+union sys·DoubleWord
+{
+    double x;
+    struct{
+        uint32 lo;
+        uint32 hi;
+    };
+};
+
 #if 0
 /*
  * copied from musl:
diff --git a/sys/linux/riscv64/arch/types.h b/sys/linux/riscv64/arch/types.h
index af908d2..5109adf 100644
--- a/sys/linux/riscv64/arch/types.h
+++ b/sys/linux/riscv64/arch/types.h
@@ -1,5 +1,17 @@
 #pragma once
 
+typedef union sys·DoubleWord sys·DoubleWord;
+
+/* little-endian */
+union sys·DoubleWord
+{
+    double x;
+    struct{
+        uint32 lo;
+        uint32 hi;
+    };
+};
+
 #if 0
 struct sys·Info
 {