Your message dated Sat, 17 Feb 2018 15:08:12 +0000
with message-id <[email protected]>
and subject line Bug#880771: fixed in dwarfutils 20180129-1
has caused the Debian Bug report #880771,
regarding dwarfutils FTCBFS: AC_TRY_RUN and running host tools
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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--
880771: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=880771
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Source: dwarfutils
Version: 20170709-1
Tags: upstream patch
User: [email protected]
Usertags: rebootstrap
dwarfutils fails to cross build from source, because its build system it
assumes native compilation in a number of places.
The first hard failure is found in dwarfdump's configure.in. It uses
AC_TRY_RUN to check whether __attribute__ ((unused)) works. Such checks
always fail for cross compilation, but running the example is completely
unnecessary. The check can easily be turned into AC_TRY_COMPILE.
Then libdwarf runs host tools during build. Its Makefile.in shows that
cross compilation was considered as it clearly marks the relevant places
with uses of $(HOSTCC) rather than $(CC). Unfortunately, HOSTCC receives
the same value as CC. The autoconf-archive has a macro AX_CC_FOR_BUILD
for discovering the build architecture compiler and after using that,
libdwarf actually builds.
Finally, dwarfdump runs tag_tree_build during build and that tool links
libdwarf. I don't have a solution for this part unfortunately.
Thus I am attaching my patch for the first two problems and ask you to
apply it as an incremental improvement. Please close this bug even
though dwarfutils will still fail to cross build when doing so.
Helmut
Index: dwarfutils-20170709/dwarfdump/configure.in
===================================================================
--- dwarfutils-20170709.orig/dwarfdump/configure.in
+++ dwarfutils-20170709/dwarfdump/configure.in
@@ -96,16 +96,14 @@
[Define 1 if regex seems to be defined]))
AC_MSG_CHECKING(checking if __attribute__ unused compiles ok)
-AC_TRY_RUN([
+AC_TRY_COMPILE([
static unsigned foo( unsigned x, __attribute__ ((unused)) int y)
{ unsigned x2 = x + 1;
return x2;
}
- int main(void) {
+] , [
unsigned y = 0;
y = foo(12,y);
- return 0;
- }
] ,
[AC_DEFINE(HAVE_UNUSED_ATTRIBUTE,1,
[Define 1 if __attribute__ ((unused)) compiles ok.])
Index: dwarfutils-20170709/libdwarf/configure.in
===================================================================
--- dwarfutils-20170709.orig/libdwarf/configure.in
+++ dwarfutils-20170709/libdwarf/configure.in
@@ -4,6 +4,7 @@
AC_CONFIG_HEADER(config.h)
AC_PROG_CC
+AX_CC_FOR_BUILD
AC_C_BIGENDIAN
AC_GCC_TRADITIONAL
AC_PROG_INSTALL
Index: dwarfutils-20170709/libdwarf/Makefile.in
===================================================================
--- dwarfutils-20170709.orig/libdwarf/Makefile.in
+++ dwarfutils-20170709/libdwarf/Makefile.in
@@ -42,7 +42,8 @@
INSTALL_DATA = @INSTALL_DATA@
SHELL = /bin/sh
CC = @CC@
-HOSTCC = @CC@
+CC_FOR_BUILD = @CC_FOR_BUILD@
+EXEEXT_FOR_BUILD = @EXEEXT_FOR_BUILD@
AR = @AR@
# For use with BSD ar (MacOSX ar) edit the ARFLAGS to be -s
#ARFLAGS = @ARFLAGS@
@@ -144,22 +145,22 @@
echo "Not building archive library libdwarf.a"
dwgetopt.o: $(srcdir)/dwgetopt.c $(srcdir)/dwgetopt.h
- $(HOSTCC) $(HOSTCFLAGS) -c $(srcdir)/dwgetopt.c
+ $(CC_FOR_BUILD) $(HOSTCFLAGS) -c $(srcdir)/dwgetopt.c
dwarf_loc.o: $(srcdir)/dwarf_loc.c $(srcdir)/dwarf_loc2.c $(srcdir)/dwarf_loc.h
$(CC) $(CFLAGS) -c $(srcdir)/dwarf_loc.c
errmsg_check: $(srcdir)/dwarf_errmsg_list.c libdwarf.h
grep DW_DLE libdwarf.h >errmsg_check_list
- $(HOSTCC) $(HOSTCFLAGS) $(LDFLAGS) -DTESTING $(srcdir)/dwarf_errmsg_list.c -o errmsg_check
- ./errmsg_check -f errmsg_check_list
+ $(CC_FOR_BUILD) $(HOSTCFLAGS) $(LDFLAGS) -DTESTING $(srcdir)/dwarf_errmsg_list.c -o errmsg_check$(EXEEXT_FOR_BUILD)
+ ./errmsg_check$(EXEEXT_FOR_BUILD) -f errmsg_check_list
# Gennames builds and runs native, even for a cross-build of libdwarf.
gennames: $(srcdir)/gennames.c $(srcdir)/dwarf.h dwgetopt.o
- $(HOSTCC) $(HOSTCFLAGS) $(srcdir)/gennames.c dwgetopt.o $(HOSTLDFLAGS) -o gennames
+ $(CC_FOR_BUILD) $(HOSTCFLAGS) $(srcdir)/gennames.c dwgetopt.o $(HOSTLDFLAGS) -o gennames$(EXEEXT_FOR_BUILD)
dwarf_names.h: dwarf_names.c
dwarf_names.c: gennames $(srcdir)/dwarf.h
rm -f dwarf_names.h dwarf_names.c
- ./gennames @dwarf_namestable@ -i $(srcdir) -o .
+ ./gennames$(EXEEXT_FOR_BUILD) @dwarf_namestable@ -i $(srcdir) -o .
# End gennames build lines
dwarf_line.o: $(srcdir)/dwarf.h libdwarf.h $(srcdir)/dwarf_line_table_reader_common.c $(srcdir)/dwarf_line.c
--- End Message ---
--- Begin Message ---
Source: dwarfutils
Source-Version: 20180129-1
We believe that the bug you reported is fixed in the latest version of
dwarfutils, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Fabian Wolff <[email protected]> (supplier of updated dwarfutils package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Sat, 17 Feb 2018 15:15:20 +0100
Source: dwarfutils
Binary: dwarfdump libdwarf-dev libdwarf1
Architecture: source amd64
Version: 20180129-1
Distribution: unstable
Urgency: medium
Maintainer: Fabian Wolff <[email protected]>
Changed-By: Fabian Wolff <[email protected]>
Description:
dwarfdump - utility to dump DWARF debug information from ELF objects
libdwarf-dev - library to consume and produce DWARF debug information
libdwarf1 - library to consume and produce DWARF debug information (runtime)
Closes: 880771 882119
Changes:
dwarfutils (20180129-1) unstable; urgency=medium
.
* New upstream release (Closes: #880771).
* Remove Daniel Stender from Uploaders field in debian/control
(Closes: #882119).
* Upgrade to Standards-Version 4.1.3 in debian/control (no changes).
* Remove useless dh-autoreconf build dependency.
* Update Vcs-Git and Vcs-Browser fields in debian/control.
* Update 01-fix-makefile.patch.
* Update symbols file.
* Update debian/copyright.
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