From ef46c278697020671bf97647af22f896b823f715 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Mon, 13 Nov 2023 10:40:36 -0600
Subject: [PATCH] Add scripts/probes directory with script to measure GLOBALS()
 size, and move findglobals and showasm into it.

---
 scripts/probes/GLOBALS                         | 8 ++++++++
 scripts/{findglobals.sh => probes/findglobals} | 3 ++-
 scripts/{ => probes}/showasm                   | 0
 3 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100755 scripts/probes/GLOBALS
 rename scripts/{findglobals.sh => probes/findglobals} (86%)
 rename scripts/{ => probes}/showasm (100%)

diff --git a/scripts/probes/GLOBALS b/scripts/probes/GLOBALS
new file mode 100755
index 00000000..0ec57627
--- /dev/null
+++ b/scripts/probes/GLOBALS
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# Show bytes used by each command's GLOBALS() block, based on last build
+{
+  echo -e '#include "toys.h"\nint main(void) {'
+  sed -n 's/^\tstruct \(.*\)_data .*/printf("%d \1\\n", (int)sizeof(struct \1_data));/p' generated/globals.h
+  echo '}'
+} | "${CROSS_COMPILE}"cc -xc - && ./a.out | sort -n
diff --git a/scripts/findglobals.sh b/scripts/probes/findglobals
similarity index 86%
rename from scripts/findglobals.sh
rename to scripts/probes/findglobals
index 2bb94d69..c4855dec 100755
--- a/scripts/findglobals.sh
+++ b/scripts/probes/findglobals
@@ -3,4 +3,5 @@
 # Quick and dirty check to see if anybody's leaked global variables.
 # We should have this, toy_list, toybuf, and toys.
 
-nm --size-sort generated/unstripped/toybox | grep '[0-9A-Fa-f]* [BCDGRS]' #| cut -d ' ' -f 3
+nm --size-sort generated/unstripped/toybox | grep '[0-9A-Fa-f]* [BCDGRS]' | \
+  grep -v GLIBC
diff --git a/scripts/showasm b/scripts/probes/showasm
similarity index 100%
rename from scripts/showasm
rename to scripts/probes/showasm
-- 
2.39.2