MIPS: Backport workaround for compact unwind tables.

src/lj_arch.h

@@ -433,6 +433,11 @@
 #define LJ_NO_SYSTEM		1
 #endif
 
+#if !defined(LUAJIT_NO_UNWIND) && __GNU_COMPACT_EH__
+/* NYI: no support for compact unwind specification, yet. */
+#define LUAJIT_NO_UNWIND	1
+#endif
+
 #if defined(LUAJIT_NO_UNWIND) || defined(__symbian__) || LJ_TARGET_IOS || LJ_TARGET_PS3 || LJ_TARGET_PS4
 #define LJ_NO_UNWIND		1
 #endif

src/vm_mips.dasc

@@ -4170,6 +4170,7 @@ static void emit_asm_debug(BuildCtx *ctx)
 	"\t.align 2\n"
 	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
 #endif
+#if !LJ_NO_UNWIND
     fprintf(ctx->fp, "\t.section .eh_frame,\"aw\",@progbits\n");
     fprintf(ctx->fp,
 	"\t.globl lj_err_unwind_dwarf\n"
@@ -4237,6 +4238,7 @@ static void emit_asm_debug(BuildCtx *ctx)
 	"\t.byte 0xd\n\t.uleb128 0x10\n"
 	"\t.align 2\n"
 	".LEFDE3:\n\n", (int)ctx->codesz - fcofs);
+#endif
 #endif
     break;
   default: