add SQLite-3.8.1 authority original source tree

1 files changed, 36 insertions, 0 deletions

diff --git a/components/external/SQLite-3.8.1/mkopcodec.awk b/components/external/SQLite-3.8.1/mkopcodec.awk
new file mode 100644
index 0000000000..2ef77d4cca
--- /dev/null
+++ b/components/external/SQLite-3.8.1/mkopcodec.awk
@@ -0,0 +1,36 @@
+#!/usr/bin/awk -f
+#
+# This AWK script scans the opcodes.h file (which is itself generated by
+# another awk script) and uses the information gleaned to create the
+# opcodes.c source file.
+#
+# Opcodes.c contains strings which are the symbolic names for the various
+# opcodes used by the VDBE.  These strings are used when disassembling a
+# VDBE program during tracing or as a result of the EXPLAIN keyword.
+#
+BEGIN {
+  print "/* Automatically generated.  Do not edit */"
+  print "/* See the mkopcodec.awk script for details. */"
+  printf "#if !defined(SQLITE_OMIT_EXPLAIN)"
+  printf    " || !defined(NDEBUG)"
+  printf    " || defined(VDBE_PROFILE)"
+  print     " || defined(SQLITE_DEBUG)"
+  print "const char *sqlite3OpcodeName(int i){"
+  print " static const char *const azName[] = { \"?\","
+  mx = 0
+}
+/define OP_/ {
+  sub("OP_","",$2)
+  i = $3+0
+  label[i] = $2
+  if( mx<i ) mx = i
+}
+END {
+  for(i=1; i<=mx; i++){
+    printf "     /* %3d */ \"%s\",\n", i, label[i]
+  }
+  print "  };"
+  print "  return azName[i];"
+  print "}"
+  print "#endif"
+}