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authorPhilip Guenther <guenther@cvs.openbsd.org>2019-08-07 21:31:04 +0000
committerPhilip Guenther <guenther@cvs.openbsd.org>2019-08-07 21:31:04 +0000
commita2627ac322d5bce3c9975e49e36781573610291a (patch)
tree32329ba24124434a175d3765fa301b1c2b68fb75 /lib/check_sym
parent92a1ddf1ee53e1f30c637fd0354267ad708b0bb6 (diff)
Report changes in the size of data symbols, which require a major bump
Diffstat (limited to 'lib/check_sym')
-rwxr-xr-xlib/check_sym20
1 files changed, 11 insertions, 9 deletions
diff --git a/lib/check_sym b/lib/check_sym
index bae9508eccf..d75735d2603 100755
--- a/lib/check_sym
+++ b/lib/check_sym
@@ -1,7 +1,7 @@
#!/bin/ksh
-# $OpenBSD: check_sym,v 1.6 2019/04/21 04:21:44 guenther Exp $
+# $OpenBSD: check_sym,v 1.7 2019/08/07 21:31:03 guenther Exp $
#
-# Copyright (c) 2016 Philip Guenther <guenther@openbsd.org>
+# Copyright (c) 2016,2019 Philip Guenther <guenther@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
@@ -51,7 +51,7 @@
#
# The *basic* rules of thumb for library versions are: if you
# * stop exporting a symbol, or
-# * change the size of a data symbol (not reported by check_sym)
+# * change the size of a data symbol
# * start exporting a symbol that an inter-dependent library needs
# then you need to bump the MAJOR version of the library.
#
@@ -71,8 +71,6 @@
# may result in meaningless results.
#
# BUGS
-# Should report changes in the size of exported data objects.
-#
# While the author stills find the intermediate files useful,
# most people won't. By default they should be placed in a
# temp directory and removed.
@@ -116,7 +114,7 @@ $usage" >&2
exit 0
}
-file_list=/tmp/{D{,S,W},J,S,U,d,j,r,s}{1,2}
+file_list=/tmp/{D{,S,W,O},J,S,U,d,j,r,s}{1,2}
verbose=false
while getopts :chv opt "$@"
@@ -234,10 +232,9 @@ dynamic_sym() {
$5 == "GLOBAL" {print $8 | ("sort -o /tmp/DS" s) }
$5 == "WEAK" {print $8 | ("sort -o /tmp/DW" s) }
$5 != "LOCAL" {print $8 | ("sort -o /tmp/D" s) }
+ $5 != "LOCAL" && $4 == "OBJECT" {
+ print $8, $3 | ("sort -o /tmp/DO" s) }
{print $4, $5, $6, $8}' /tmp/s$1 | sort -o /tmp/d$1
-# awk -v s=$1 '$2 == "GLOBAL" {print $4 | ("sort -o /tmp/DS" s) }
-# $2 == "WEAK" {print $4 | ("sort -o /tmp/DW" s) }
-# $1 != "SECTION"{print $4}' /tmp/d$1 | sort -o /tmp/D$1
}
static_sym() {
@@ -246,6 +243,10 @@ static_sym() {
s&&/^ *[1-9]/{print $4, $5, $6, $8}' /tmp/s$1 | sort -o /tmp/S$1
}
+data_sym_changes() {
+ join "$@" | awk '$2 != $3 { print $1 " " $2 " --> " $3 }'
+}
+
output_if_not_empty() {
leader=$1
shift
@@ -277,6 +278,7 @@ else
output_if_not_empty "weakened:" comm -12 /tmp/DS1 /tmp/DW2
output_if_not_empty "strengthened:" comm -12 /tmp/DW1 /tmp/DS2
fi
+output_if_not_empty "Data object size changes:" data_sym_changes /tmp/DO[12]
if ! cmp -s /tmp/U[12]
then
printf "External reference changes:\n"