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73 lines
2.6 KiB
73 lines
2.6 KiB
1 month ago
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commit 086910fc41655152812b515dc324d2ac0dc36e67
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Thu Jun 20 10:32:16 2024 +0200
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malloc: Always install mtrace (bug 31892)
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Generation of the Perl script does not depend on Perl, so we can
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always install it even if $(PERL) is not set during the build.
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Change the malloc/mtrace.pl text substition not to rely on $(PERL).
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Instead use PATH at run time to find the Perl interpreter. The Perl
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interpreter cannot execute directly a script that starts with
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“#! /bin/sh”: it always executes it with /bin/sh. There is no
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perl command line switch to disable this behavior. Instead, use
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the Perl require function to execute the script. The additional
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shift calls remove the “.” shell arguments. Perl interprets the
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“.” as a string concatenation operator, making the expression
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syntactically valid.
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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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diff --git a/malloc/Makefile b/malloc/Makefile
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index cc14cf66c9661f99..02aff1bd1dc664c3 100644
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--- a/malloc/Makefile
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+++ b/malloc/Makefile
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@@ -250,7 +250,6 @@ others-extras = mcheck-init.o
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aux := set-freeres thread-freeres
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# The Perl script to analyze the output of the mtrace functions.
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-ifneq ($(PERL),no)
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install-bin-script = mtrace
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generated += mtrace
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@@ -261,7 +260,6 @@ address-width=10
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else
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address-width=18
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endif
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-endif
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# Unless we get a test for the availability of libgd which also works
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# for cross-compiling we disable the memusagestat generation in this
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@@ -349,7 +347,7 @@ sLIBdir := $(shell echo $(slibdir) | sed 's,lib\(\|64\)$$,\\\\$$LIB,')
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$(objpfx)mtrace: mtrace.pl
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rm -f $@.new
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- sed -e 's|@PERL@|$(PERL)|' -e 's|@XXX@|$(address-width)|' \
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+ sed -e 's|@XXX@|$(address-width)|' \
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-e 's|@VERSION@|$(version)|' \
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-e 's|@PKGVERSION@|$(PKGVERSION)|' \
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-e 's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $^ > $@.new \
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diff --git a/malloc/mtrace.pl b/malloc/mtrace.pl
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index 075da0d9f11da15c..dc6085820e62092c 100644
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--- a/malloc/mtrace.pl
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+++ b/malloc/mtrace.pl
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@@ -1,6 +1,6 @@
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-#! @PERL@
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-eval "exec @PERL@ -S $0 $@"
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- if 0;
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+#! /bin/sh
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+eval exec "perl -e 'shift; \$progname=shift; shift; require \$progname'" . "$0" . "$@"
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+ if 0;
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# Copyright (C) 1997-2024 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# Based on the mtrace.awk script.
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@@ -22,7 +22,6 @@ eval "exec @PERL@ -S $0 $@"
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$VERSION = "@VERSION@";
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$PKGVERSION = "@PKGVERSION@";
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$REPORT_BUGS_TO = '@REPORT_BUGS_TO@';
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-$progname = $0;
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sub usage {
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print "Usage: mtrace [OPTION]... [Binary] MtraceData\n";
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