libc: create a skeleton libc and build targetsHEADmaster

Create build targets for a skeleton libc that only includes enough
functionality to get a cross compiler running.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/include/stdint.h b/include/stdint.h
new file mode 100644
index 0000000..4f6e71d
--- /dev/null
+++ b/include/stdint.h
@@ -0,0 +1,32 @@
+#ifndef STDINT_H
+#define STDINT_H
+
+#include <bits/types.h>
+
+#define INT8_MIN        (-1-0x7F)
+#define INT16_MIN       (-1-0x7FFF)
+#define INT32_MIN       (-1-0x7FFFFFFF)
+#define INT64_MIN       (-1-0x7FFFFFFFFFFFFFFF)
+
+#define INT8_MAX        (0x7F)
+#define INT16_MAX       (0x7FFF)
+#define INT32_MAX       (0x7FFFFFFF)
+#define INT64_MAX       (0x7FFFFFFFFFFFFFFF)
+
+#define UINT8_MAX       (0xFF)
+#define UINT16_MAX      (0xFFFF)
+#define UINT32_MAX      (0xFFFFFFFF)
+#define UINT64_MAX      (0xFFFFFFFFFFFFFFFF)
+
+#define INT_FAST8_MIN   INT8_MIN
+#define INT_FAST64_MIN  INT64_MIN
+
+#define INT_FAST8_MAX   INT8_MAX
+#define INT_FAST64_MAX  INT64_MAX
+
+#define INT_LEAST8_MIN  INT8_MIN
+#define INT_LEAST16_MIN INT16_MIN
+#define INT_LEAST32_MIN INT32_MIN
+#define INT_LEAST64_MIN INT64_MIN
+
+#endif