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Gentoo's Bugzilla – Attachment 312873 Details for
Bug 411439
[hardened] app-editors/emacs-23.4-r1 segfault in unexec with hardened-sources-3.3*
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[patch]
Patch for app-editors/emacs-23.4-r1
emacs-23.4-paxctl.patch (text/plain), 2.02 KB, created by
Ulrich Müller
on 2012-05-23 19:57:31 UTC
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Description:
Patch for app-editors/emacs-23.4-r1
Filename:
MIME Type:
Creator:
Ulrich Müller
Created:
2012-05-23 19:57:31 UTC
Size:
2.02 KB
patch
obsolete
>--- emacs-23.4-orig/configure.in >+++ emacs-23.4/configure.in >@@ -800,6 +800,8 @@ > AC_PATH_PROG(INSTALL_INFO, install-info,:, /sbin) > dnl Don't use GZIP, which is used by gzip for additional parameters. > AC_PATH_PROG(GZIP_PROG, gzip) >+AC_PATH_PROG(PAXCTL, paxctl,, >+ [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin]) > > > ## Need makeinfo >= 4.6 (?) to build the manuals. >--- emacs-23.4-orig/src/Makefile.in >+++ emacs-23.4/src/Makefile.in >@@ -508,6 +508,12 @@ > some cpps. */ > TEMACS_LDFLAGS = LD_SWITCH_SYSTEM LD_SWITCH_SYSTEM_TEMACS LD_SWITCH_MACHINE LD_SWITCH_MACHINE_TEMACS > >+/* If available, the full path to the paxctl program. >+ On grsecurity/PaX systems, unexec will fail because memory regions >+ of executables are randomized. This can be prevented by disabling >+ RANDMMAP of temacs with "paxctl -r". See bug#11398. */ >+PAXCTL = @PAXCTL@ >+ > /* A macro which other sections of Makefile can redefine to munge the > flags before they are passed to LD. This is helpful if you have > redefined LD to something odd, like "gcc". >@@ -933,6 +939,7 @@ > -EMACSLOADPATH=${lispsource} ./emacs -q -batch -f list-load-path-shadows > #else > LC_ALL=C $(RUN_TEMACS) -batch -l loadup dump >+ test -z "$(PAXCTL)" || $(PAXCTL) -zex emacs$(EXEEXT) > @: This new Emacs is as functional and more efficient then > @: bootstrap-emacs, so let us replace it. > -ln -f emacs${EXEEXT} bootstrap-emacs${EXEEXT} >@@ -974,6 +981,9 @@ > -o temacs ${STARTFILES} ${obj} ${otherobj} \ > ${LIBES} > #endif >+#ifndef CANNOT_DUMP >+ test -z "$(PAXCTL)" || $(PAXCTL) -r temacs$(EXEEXT) >+#endif > > /* We do not use ALL_LDFLAGS because LD_SWITCH_SYSTEM and LD_SWITCH_MACHINE > often contain options that have to do with using Emacs''s crt0, >@@ -1419,6 +1429,7 @@ > ln -f temacs${EXEEXT} bootstrap-emacs${EXEEXT} > #else > $(RUN_TEMACS) --batch --load loadup bootstrap >+ test -z "$(PAXCTL)" || $(PAXCTL) -zex emacs$(EXEEXT) > mv -f emacs${EXEEXT} bootstrap-emacs${EXEEXT} > #endif /* ! defined (CANNOT_DUMP) */ > @: Compile some files earlier to speed up further compilation.
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bug 411439
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308365
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308367
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308395
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308469
| 312873 |
312875