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95 lines
2.6 KiB
95 lines
2.6 KiB
From f48b5fd8ab03c200eaf5e3a9b03bcd01b2659cf3 Mon Sep 17 00:00:00 2001
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From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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Date: Thu, 2 Nov 2017 16:00:33 +0100
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Subject: [PATCH] Fix compilation on toolchain without prlimit
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Some toolchains which are not bionic like uclibc does not support
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prlimit or prlimit64. In this case, return an error.
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Moreover, if prlimit64 is available, use lxc implementation of prlimit.
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Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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---
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configure.ac | 4 ++++
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src/lxc/Makefile.am | 6 ++++++
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src/lxc/conf.c | 12 +++++++++---
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3 files changed, 19 insertions(+), 3 deletions(-)
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diff --git a/configure.ac b/configure.ac
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index 642b78e7e1..63df7466cb 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -643,6 +643,10 @@ AC_CHECK_FUNCS([prlimit],
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AM_CONDITIONAL(HAVE_PRLIMIT, true)
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AC_DEFINE(HAVE_PRLIMIT,1,[Have prlimit]),
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AM_CONDITIONAL(HAVE_PRLIMIT, false))
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+AC_CHECK_FUNCS([prlimit64],
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+ AM_CONDITIONAL(HAVE_PRLIMIT64, true)
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+ AC_DEFINE(HAVE_PRLIMIT64,1,[Have prlimit64]),
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+ AM_CONDITIONAL(HAVE_PRLIMIT64, false))
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# Check for some libraries
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AC_SEARCH_LIBS(sem_open, [rt pthread])
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diff --git a/src/lxc/Makefile.am b/src/lxc/Makefile.am
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index fff32ae4f3..8f0c11ecae 100644
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--- a/src/lxc/Makefile.am
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+++ b/src/lxc/Makefile.am
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@@ -45,7 +45,10 @@ noinst_HEADERS += \
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../include/ifaddrs.h \
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../include/openpty.h \
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../include/lxcmntent.h
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+endif
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+
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if !HAVE_PRLIMIT
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+if HAVE_PRLIMIT64
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noinst_HEADERS += ../include/prlimit.h
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endif
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endif
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@@ -142,7 +145,10 @@ liblxc_la_SOURCES += \
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../include/ifaddrs.c ../include/ifaddrs.h \
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../include/openpty.c ../include/openpty.h \
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../include/lxcmntent.c ../include/lxcmntent.h
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+endif
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+
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if !HAVE_PRLIMIT
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+if HAVE_PRLIMIT64
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liblxc_la_SOURCES += ../include/prlimit.c ../include/prlimit.h
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endif
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endif
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diff --git a/src/lxc/conf.c b/src/lxc/conf.c
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index 44d9784303..8a66f2d02c 100644
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--- a/src/lxc/conf.c
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+++ b/src/lxc/conf.c
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@@ -100,13 +100,14 @@
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#if IS_BIONIC
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#include <../include/lxcmntent.h>
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-#ifndef HAVE_PRLIMIT
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-#include <../include/prlimit.h>
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-#endif
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#else
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#include <mntent.h>
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#endif
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+#if !defined(HAVE_PRLIMIT) && defined(HAVE_PRLIMIT64)
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+#include <../include/prlimit.h>
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+#endif
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+
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lxc_log_define(lxc_conf, lxc);
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#if HAVE_LIBCAP
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@@ -2457,10 +2458,15 @@ int setup_resource_limits(struct lxc_list *limits, pid_t pid) {
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return -1;
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}
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+#if HAVE_PRLIMIT || HAVE_PRLIMIT64
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if (prlimit(pid, resid, &lim->limit, NULL) != 0) {
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ERROR("failed to set limit %s: %s", lim->resource, strerror(errno));
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return -1;
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}
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+#else
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+ ERROR("Cannot set limit %s as prlimit is missing", lim->resource);
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+ return -1;
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+#endif
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}
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return 0;
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}
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