From: Mark Wooding <mdw@distorted.org.uk>
Date: Wed, 4 Sep 2019 18:10:52 +0000 (+0100)
Subject: bin/datasyms: New utility to print the writable-data symbols in object files.
X-Git-Url: https://git.distorted.org.uk/~mdw/profile/commitdiff_plain/878a38bd893a92b5a8d5b5f941cb4ec0c1abeba4

bin/datasyms: New utility to print the writable-data symbols in object files.

It turns out that I have a habit of forgetting to declare constant
tables as being `const'.  This tool is one of the few ways to notice
that I've done this.
---

diff --git a/Makefile b/Makefile
index 9899824..85978dd 100644
--- a/Makefile
+++ b/Makefile
@@ -222,6 +222,7 @@ SCRIPTLINKS		+= mdw-conf
 SCRIPTLINKS		+= svnwrap
 SCRIPTLINKS		+= guest-console
 SCRIPTLINKS		+= hyperspec
+SCRIPTLINKS		+= datasyms
 
 ## Random odds and ends.
 DOTLINKS		+= .infokey .sqliterc
diff --git a/bin/datasyms b/bin/datasyms
new file mode 100755
index 0000000..d54ede6
--- /dev/null
+++ b/bin/datasyms
@@ -0,0 +1,7 @@
+#! /bin/sh -e
+objdump -t "$@" | sed -En '
+	/^(.*\.o:) .*$/ { s//\1/; h; }
+	/(\.data|\.bss|\*COM\*)[[:space:]]+[0-9]+ [^.]/ {
+		x; /./ p; s/.*//; x
+		s/^/	/; p
+	}'