- 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 2007-01-25 12:00:34 +00:00
parent ff58089a52
commit 2a3871a1b2
2 changed files with 115 additions and 1 deletions

108
make-3.81-rlimit.patch Normal file
View File

@ -0,0 +1,108 @@
diff -Burp make-3.81/job.c make-3.81-pm/job.c
--- make-3.81/job.c 2006-11-30 11:00:23.000000000 +0100
+++ make-3.81-pm/job.c 2006-11-30 10:58:46.000000000 +0100
@@ -2079,6 +2079,9 @@ exec_command (char **argv, char **envp)
# else
/* Run the program. */
+#ifdef SET_STACK_SIZE
+ restore_original_stack_rlimit ();
+#endif
environ = envp;
execvp (argv[0], argv);
diff -Burp make-3.81/main.c make-3.81-pm/main.c
--- make-3.81/main.c 2006-11-30 11:00:23.000000000 +0100
+++ make-3.81-pm/main.c 2006-11-30 10:38:04.000000000 +0100
@@ -44,12 +44,51 @@ Foundation, Inc., 51 Franklin St, Fifth
# include <fcntl.h>
#endif
-#if defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT)
-# define SET_STACK_SIZE
-#endif
-
#ifdef SET_STACK_SIZE
# include <sys/resource.h>
+/* Whether the rlimit was set successfuly */
+static int setrlimit_succeeded = 0;
+/* Original rlim_cur */
+static rlim_t setrlimit_orig_cur = 0;
+
+/* Get rid of any avoidable limit on stack size so that alloca does
+ not fail. */
+void
+set_max_stack_rlimit (void)
+{
+ struct rlimit rlim;
+
+ /* Back off if the limit is still set, probably due to failure in
+ restore_original_stack_rlimit. */
+ if (setrlimit_succeeded)
+ return;
+
+ if (getrlimit (RLIMIT_STACK, &rlim) == 0)
+ {
+ setrlimit_orig_cur = rlim.rlim_cur;
+ rlim.rlim_cur = rlim.rlim_max;
+ if (setrlimit (RLIMIT_STACK, &rlim) != -1)
+ setrlimit_succeeded = 1;
+ }
+}
+
+/* Set the rlimit back to its original value. To be called before
+ process spawn. */
+void
+restore_original_stack_rlimit (void)
+{
+ struct rlimit rlim;
+
+ if (!setrlimit_succeeded)
+ return;
+
+ if (getrlimit (RLIMIT_STACK, &rlim) == 0)
+ {
+ rlim.rlim_cur = setrlimit_orig_cur;
+ if (setrlimit (RLIMIT_STACK, &rlim) != -1)
+ setrlimit_succeeded = 0;
+ }
+}
#endif
#ifdef _AMIGA
@@ -915,17 +954,7 @@ main (int argc, char **argv, char **envp
#endif
#ifdef SET_STACK_SIZE
- /* Get rid of any avoidable limit on stack size. */
- {
- struct rlimit rlim;
-
- /* Set the stack limit huge so that alloca does not fail. */
- if (getrlimit (RLIMIT_STACK, &rlim) == 0)
- {
- rlim.rlim_cur = rlim.rlim_max;
- setrlimit (RLIMIT_STACK, &rlim);
- }
- }
+ set_max_stack_rlimit ();
#endif
#ifdef HAVE_ATEXIT
diff -Burp make-3.81/make.h make-3.81-pm/make.h
--- make-3.81/make.h 2006-11-30 11:00:23.000000000 +0100
+++ make-3.81-pm/make.h 2006-11-30 10:29:50.000000000 +0100
@@ -346,6 +346,13 @@ extern int strcmpi (const char *,const c
#define N_(msgid) gettext_noop (msgid)
#define S_(msg1,msg2,num) ngettext (msg1,msg2,num)
+/* Handle rlimit */
+#if defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT)
+# define SET_STACK_SIZE
+void set_max_stack_rlimit (void);
+void restore_original_stack_rlimit (void);
+#endif
+
/* Handle other OSs. */
#if defined(HAVE_DOS_PATHS)
# define PATH_SEPARATOR_CHAR ';'

View File

@ -2,7 +2,7 @@ Summary: A GNU tool which simplifies the build process for users.
Name: make
Epoch: 1
Version: 3.81
Release: 1.1
Release: 2%{?dist}
License: GPL
Group: Development/Tools
URL: http://www.gnu.org/software/make/
@ -12,6 +12,7 @@ Patch4: make-3.80-j8k.patch
Patch5: make-3.80-getcwd.patch
Patch6: make-3.81-err-reporting.patch
Patch7: make-3.81-memory.patch
Patch8: make-3.81-rlimit.patch
Prereq: /sbin/install-info
Prefix: %{_prefix}
Buildroot: %{_tmppath}/%{name}-root
@ -34,6 +35,7 @@ commonly used to simplify the process of installing programs.
%patch5 -p1
%patch6 -p1
%patch7 -p1
%patch8 -p1
%build
config/missing --run aclocal -I config
@ -81,6 +83,10 @@ fi
%{_infodir}/*.info*
%changelog
* Thu Jan 25 2007 Petr Machata <pmachata@redhat.com> - 1:3.81-2
- make now restores rlimit to its original values before launching
subprocess (#214033)
* Wed Jul 12 2006 Jesse Keating <jkeating@redhat.com> - 1:3.81-1.1
- rebuild