1 files changed, 36 insertions, 0 deletions
diff --git a/upb/pb/make-gdb-script.rb b/upb/pb/make-gdb-script.rb
new file mode 100755
index 0000000..3895597
--- /dev/null
+++ b/upb/pb/make-gdb-script.rb
@@ -0,0 +1,36 @@
+#!/usr/bin/ruby
+
+puts "set width 0
+set height 0
+set verbose off\n\n"
+
+IO.popen("nm -S /tmp/upb-jit-code.so").each_line { |line|
+  # Input lines look like this:
+  #   000000000000575a T X.0x10.OP_CHECKDELIM
+  #
+  # For each one we want to emit a command that looks like:
+  #   b X.0x10.OP_CHECKDELIM
+  #   commands
+  #     silent
+  #     printf "buf_ofs=%d data_rem=%d delim_rem=%d X.0x10.OP_CHECKDELIM\n", $rbx - (long)((upb_pbdecoder*)($r15))->buf, $r12 - $rbx, $rbp - $rbx
+  #     continue
+  #   end
+
+  parts = line.split
+  next if parts[1] != "T"
+  sym = parts[2]
+  next if sym !~ /X\./;
+  if sym =~ /OP_/ then
+    printcmd = "printf \"buf_ofs=%d data_rem=%d delim_rem=%d #{sym}\\n\", $rbx - (long)((upb_pbdecoder*)($r15))->buf, $r12 - $rbx, $rbp - $rbx"
+  elsif sym =~ /enterjit/ then
+    printcmd = "printf \"#{sym} bytes=%d\\n\", $rcx"
+  else
+    printcmd = "printf \"#{sym}\\n\""
+  end
+  puts "b #{sym}
+commands
+  silent
+  #{printcmd}
+  continue
+end\n\n"
+}