- make now restores rlimit to its original values before launching
subprocess (#214033) - this doesn't resolve #214033, it's merely related
This commit is contained in:
Petr Machata
parent
ff58089a52
commit
2a3871a1b2
108
make-3.81-rlimit.patch
Normal file
108
make-3.81-rlimit.patch
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@ -0,0 +1,108 @@
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diff -Burp make-3.81/job.c make-3.81-pm/job.c
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--- make-3.81/job.c 2006-11-30 11:00:23.000000000 +0100
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+++ make-3.81-pm/job.c 2006-11-30 10:58:46.000000000 +0100
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@@ -2079,6 +2079,9 @@ exec_command (char **argv, char **envp)
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# else
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/* Run the program. */
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+#ifdef SET_STACK_SIZE
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+ restore_original_stack_rlimit ();
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+#endif
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environ = envp;
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execvp (argv[0], argv);
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diff -Burp make-3.81/main.c make-3.81-pm/main.c
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--- make-3.81/main.c 2006-11-30 11:00:23.000000000 +0100
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+++ make-3.81-pm/main.c 2006-11-30 10:38:04.000000000 +0100
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@@ -44,12 +44,51 @@ Foundation, Inc., 51 Franklin St, Fifth
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# include <fcntl.h>
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#endif
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-#if defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT)
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-# define SET_STACK_SIZE
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-#endif
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-
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#ifdef SET_STACK_SIZE
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# include <sys/resource.h>
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+/* Whether the rlimit was set successfuly */
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+static int setrlimit_succeeded = 0;
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+/* Original rlim_cur */
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+static rlim_t setrlimit_orig_cur = 0;
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+
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+/* Get rid of any avoidable limit on stack size so that alloca does
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+ not fail. */
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+void
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+set_max_stack_rlimit (void)
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+{
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+ struct rlimit rlim;
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+
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+ /* Back off if the limit is still set, probably due to failure in
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+ restore_original_stack_rlimit. */
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+ if (setrlimit_succeeded)
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+ return;
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+
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+ if (getrlimit (RLIMIT_STACK, &rlim) == 0)
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+ {
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+ setrlimit_orig_cur = rlim.rlim_cur;
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+ rlim.rlim_cur = rlim.rlim_max;
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+ if (setrlimit (RLIMIT_STACK, &rlim) != -1)
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+ setrlimit_succeeded = 1;
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+ }
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+}
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+
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+/* Set the rlimit back to its original value. To be called before
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+ process spawn. */
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+void
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+restore_original_stack_rlimit (void)
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+{
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+ struct rlimit rlim;
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+
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+ if (!setrlimit_succeeded)
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+ return;
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+
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+ if (getrlimit (RLIMIT_STACK, &rlim) == 0)
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+ {
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+ rlim.rlim_cur = setrlimit_orig_cur;
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+ if (setrlimit (RLIMIT_STACK, &rlim) != -1)
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+ setrlimit_succeeded = 0;
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+ }
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+}
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#endif
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#ifdef _AMIGA
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@@ -915,17 +954,7 @@ main (int argc, char **argv, char **envp
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#endif
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#ifdef SET_STACK_SIZE
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- /* Get rid of any avoidable limit on stack size. */
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- {
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- struct rlimit rlim;
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-
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- /* Set the stack limit huge so that alloca does not fail. */
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- if (getrlimit (RLIMIT_STACK, &rlim) == 0)
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- {
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- rlim.rlim_cur = rlim.rlim_max;
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- setrlimit (RLIMIT_STACK, &rlim);
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- }
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- }
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+ set_max_stack_rlimit ();
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#endif
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#ifdef HAVE_ATEXIT
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diff -Burp make-3.81/make.h make-3.81-pm/make.h
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--- make-3.81/make.h 2006-11-30 11:00:23.000000000 +0100
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+++ make-3.81-pm/make.h 2006-11-30 10:29:50.000000000 +0100
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@@ -346,6 +346,13 @@ extern int strcmpi (const char *,const c
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#define N_(msgid) gettext_noop (msgid)
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#define S_(msg1,msg2,num) ngettext (msg1,msg2,num)
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+/* Handle rlimit */
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+#if defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT)
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+# define SET_STACK_SIZE
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+void set_max_stack_rlimit (void);
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+void restore_original_stack_rlimit (void);
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+#endif
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+
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/* Handle other OSs. */
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#if defined(HAVE_DOS_PATHS)
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# define PATH_SEPARATOR_CHAR ';'
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@ -2,7 +2,7 @@ Summary: A GNU tool which simplifies the build process for users.
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Name: make
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Epoch: 1
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Version: 3.81
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Release: 1.1
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Release: 2%{?dist}
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License: GPL
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Group: Development/Tools
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URL: http://www.gnu.org/software/make/
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@ -12,6 +12,7 @@ Patch4: make-3.80-j8k.patch
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Patch5: make-3.80-getcwd.patch
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Patch6: make-3.81-err-reporting.patch
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Patch7: make-3.81-memory.patch
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Patch8: make-3.81-rlimit.patch
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Prereq: /sbin/install-info
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Prefix: %{_prefix}
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Buildroot: %{_tmppath}/%{name}-root
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@ -34,6 +35,7 @@ commonly used to simplify the process of installing programs.
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%patch5 -p1
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%patch6 -p1
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%patch7 -p1
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%patch8 -p1
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%build
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config/missing --run aclocal -I config
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@ -81,6 +83,10 @@ fi
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%{_infodir}/*.info*
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%changelog
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* Thu Jan 25 2007 Petr Machata <pmachata@redhat.com> - 1:3.81-2
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- make now restores rlimit to its original values before launching
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subprocess (#214033)
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* Wed Jul 12 2006 Jesse Keating <jkeating@redhat.com> - 1:3.81-1.1
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- rebuild
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