mips: add freestanding port

README.md

@@ -20,7 +20,7 @@ Adding support for new architectures is easy, but you need to know assembly lang
 |    aarch64   | ✓             |         |                       |
 |      arm     | ✓             |         |                       |
 |     m68k     | ✓             |         | ✓                     |
-|     mips     | ✓             |         |                       |
+|     mips     | ✓             |         | ✓                     |
 |    mips64    | ✓             |         | ✓                     |
 |      ppc     | ✓             | ✓       |                       |
 |     ppc64    | ✓             | ✓       |                       |

arch/mips/freestanding/bits.h

@@ -0,0 +1,27 @@
+#ifndef LIBUCONTEXT_BITS_H
+#define LIBUCONTEXT_BITS_H
+
+typedef unsigned long long libucontext_greg_t, libucontext_gregset_t[32];
+
+typedef struct {
+	unsigned regmask, status;
+	unsigned long long pc, gregs[32], fpregs[32];
+	unsigned ownedfp, fpc_csr, fpc_eir, used_math, dsp;
+	unsigned long long mdhi, mdlo;
+	unsigned long hi1, lo1, hi2, lo2, hi3, lo3;
+} libucontext_mcontext_t;
+
+typedef struct {
+	void *ss_sp;
+	size_t ss_size;
+	int ss_flags;
+} libucontext_stack_t;
+
+typedef struct libucontext_ucontext {
+	unsigned long uc_flags;
+	struct libucontext_ucontext *uc_link;
+	libucontext_stack_t uc_stack;
+	libucontext_mcontext_t uc_mcontext;
+} libucontext_ucontext_t;
+
+#endif