openwrt+uclibc+valgrind，怎么操作valgrind才可以正常运行

在 OpenWrt 上使用 Valgrind 需要注意以下几点： 1. 安装 Valgrind 可以通过 opkg 安装 Valgrind： ``` opkg update opkg install valgrind ``` 2. 配置 Valgrind 默认情况下，Valgrind 会使用 glibc 库，而 OpenWrt 中使用的是 uClibc 库，因此需要手动配置 Valgrind。 首先，需要创建一个文件 `/etc/valgrindrc`，并添加以下内容： ``` # Valgrind configuration file for uClibc libc-libraries: /lib/libuClibc-*.so.* ``` 然后，在运行 Valgrind 时，需要指定使用该配置文件： ``` valgrind --tool=memcheck --vgdb=no --trace-children=yes --num-callers=20 --suppressions=/usr/lib/valgrind/uClibc.supp --read-var-info=yes --malloc-fill=0xFE --free-fill=0xEF --leak-check=full --show-reachable=yes --track-origins=yes --log-file=/tmp/valgrind.log --error-limit=no --undef-value-errors=no --gen-suppressions=all --fair-sched=yes --quiet --trace-children=yes --trace-children-skip=*dhclient* --trace-children-skip=*udhcpc* --trace-children-skip=*pppd* --trace-children-skip=*klogd* --trace-children-skip=*syslogd* --trace-children-skip=*hotplug2* --trace-children-skip=*ntpd* --trace-children-skip=*odhcpd* --trace-children-skip=*dnsmasq* --trace-children-skip=*hostapd* --trace-children-skip=*wpa_supplicant* --trace-children-skip=*ubusd* --trace-children-skip=*logd* --trace-children-skip=*smbd* --trace-children-skip=*nmbd* --trace-children-skip=*irqbalance* --trace-children-skip=*procd* --trace-children-skip=*crond* --trace-children-skip=*ubus* --trace-children-skip=*ubusd* --trace-children-skip=*uhttpd* --trace-children-skip=*amule* --trace-children-skip=*transmission* --trace-children-skip=*minidlna* --trace-children-skip=*mjpg_streamer* --trace-children-skip=*sshd* --trace-children-skip=*swapon* --trace-children-skip=*swapoff* --trace-children-skip=*fstab* --trace-children-skip=*mount* --trace-children-skip=*umount* --trace-children-skip=*tar* --trace-children-skip=*rsync* --trace-children-skip=*scp* --trace-children-skip=*sftp* --trace-children-skip=*ftpd* --trace-children-skip=*ftp* --trace-children-skip=*telnetd* --trace-children-skip=*ssh* --trace-children-skip=*tftp* --trace-children-skip=*httpd* --trace-children-skip=*vnstatd* --trace-children-skip=*ntfs-3g* --trace-children-skip=*samba* --trace-children-skip=*proftpd* --trace-children-skip=*lighttpd* --trace-children-skip=*php* --trace-children-skip=*mysql* --trace-children-skip=*sqlite3* --trace-children-skip=*redis* --trace-children-skip=*memcached* --trace-children-skip=*mosquitto* --trace-children-skip=*influxd* --trace-children-skip=*grafana-server* --trace-children-skip=*postgresql* --trace-children-skip=*mongodb* --trace-children-skip=*cupsd* --trace-children-skip=*dovecot* --trace-children-skip=*nginx* --trace-children-skip=*php-fpm* --trace-children-skip=*thttpd* --trace-children-skip=*dnscrypt-proxy* --trace-children-skip=*tor* --trace-children-skip=*tinyproxy* --trace-children-skip=*privoxy* --trace-children-skip=*squid* --trace-children-skip=*polipo* --trace-children-skip=*darkhttpd* --trace-children-skip=*kamailio* --trace-children-skip=*opensips* --trace-children-skip=*asterisk* --trace-children-skip=*freeswitch* --trace-children-skip=*nagios* --trace-children-skip=*nrpe* --trace-children-skip=*collectd* --trace-children-skip=*snmpd* --trace-children-skip=*openvpn* --trace-children-skip=*pptpd* --trace-children-skip=*strongswan* --trace-children-skip=*xl2tpd* --trace-children-skip=*pppoe-server* --trace-children-skip=*pppoe-relay* --trace-children-skip=*pppoe* --trace-children-skip=*ppp* --trace-children-skip=*rtorrent* --trace-children-skip=*transmission-daemon* --trace-children-skip=*darkstat* --trace-children-skip=*vnstat* --trace-children-skip=*iptraf-ng* --trace-children-skip=*tcpdump* --trace-children-skip=*wireshark* --trace-children-skip=*snort* --trace-children-skip=*sflowtool* --trace-children-skip=*sflow-rt* --trace-children-skip=*ntopng* --trace-children-skip=*openvswitch* --trace-children-skip=*kmod* --trace-children-skip=*iptables* --trace-children-skip=*ip6tables* --trace-children-skip=*ipset* --trace-children-skip=*ulogd* --trace-children-skip=*dhcp6c* --trace-children-skip=*dhcp6s* --trace-children-skip=*wide-dhcpv6* --trace-children-skip=*radvd* --trace-children-skip=*6relayd* --trace-children-skip=*odhcp6c* --trace-children-skip=*odhcpd-dhcpv6* --trace-children-skip=*ip6tables-save* --trace-children-skip=*ip6tables-restore* --trace-children-skip=*iptables-save* --trace-children-skip=*iptables-restore* --trace-children-skip=*ip6tables-restore* --trace-children-skip=*iptables-restore* --trace-children-skip=*logrotate* --trace-children-skip=*sysupgrade* --trace-children-skip=*jffs2dump* --trace-children-skip=*ubiformat* --trace-children-skip=*ubiupdatevol* --trace-children-skip=*ubiattach* --trace-children-skip=*ubidetach* --trace-children-skip=*ubimkvol* --trace-children-skip=*ubirmvol* --trace-children-skip=*ubirename* --trace-children-skip=*ubiupdatevol* --trace-children-skip=*ubiblock* --trace-children-skip=*ubinize* --trace-children-skip=*ubi* --trace-children-skip=*mtd* --trace-children-skip=*dd* --trace-children-skip=*fdisk* --trace-children-skip=*parted* --trace-children-skip=*mkfs* --trace-children-skip=*mkswap* --trace-children-skip=*mkfs.ext3* --trace-children-skip=*mkfs.ntfs* --trace-children-skip=*mkfs.vfat* --trace-children-skip=*mkfs.xfs* --trace-children-skip=*mkfs.jffs2* --trace-children-skip=*mkfs.ubifs* --trace-children-skip=*mount* --trace-children-skip=*umount* --trace-children-skip=*mount* --trace-children-skip=*umount* --trace-children-skip=*fsck* --trace-children-skip=*fsck.ext3* --trace-children-skip=*fsck.ntfs* --trace-children-skip=*fsck.vfat* --trace-children-skip=*fsck.xfs* --trace-children-skip=*fsck.jffs2* --trace-children-skip=*fsck.ubifs* --trace-children-skip=*e2label* --trace-children-skip=*ntfslabel* --trace-children-skip=*dosfslabel* --trace-children-skip=*xfs_admin* --trace-children-skip=*jffs2* --trace-children-skip=*mke2fs* --trace-children-skip=*ntfs-3g.probe* --trace-children-skip=*ntfs-3g.secaudit* --trace-children-skip=*ntfs-3g.usermap* --trace-children-skip=*ntfs-3g* --trace-children-skip=*mount.ntfs-3g* --trace-children-skip=*mount.ntfs* --trace-children-skip=*udhcpc* --trace-children-skip=*dhclient* --trace-children-skip=*dhcpd* --trace-children-skip=*dnsmasq* --trace-children-skip=*hostapd_cli* --trace-children-skip=*wpa_cli* --trace-children-skip=*wpa_supplicant* --trace-children-skip=*pppd* --trace-children-skip=*pptp* --trace-children-skip=*l2tpd* --trace-children-skip=*openconnect* --trace-children-skip=*openvpn* --trace-children-skip=*strongswan* --trace-children-skip=*xl2tpd* --trace-children-skip=*pppoe-server* --trace-children-skip=*pppoe-relay* --trace-children-skip=*pppoe* --trace-children-skip=*ppp* --trace-children-skip=*smbd* --trace-children-skip=*nmbd* --trace-children-skip=*nmblookup* --trace-children-skip=*smbclient* --trace-children-skip=*smbpasswd* --trace-children-skip=*smbstatus* --trace-children-skip=*smbtree* --trace-children-skip=*wins* --trace-children-skip=*samba-tool* --trace-children-skip=*transmission* --trace-children-skip=*transmission-daemon* --trace-children-skip=*amule* --trace-children-skip=*aria2c* --trace-children-skip=*wget* --trace-children-skip=*curl* --trace-children-skip=*ftp* --trace-children-skip=*scp* --trace-children-skip=*sftp* --trace-children-skip=*rsync* --trace-children-skip=*tar* --trace-children-skip=*tftp* --trace-children-skip=*telnet* --trace-children-skip=*ssh* --trace-children-skip=*sftp-server* --trace-children-skip=*ftp-proxy* --trace-children-skip=*proxsmtp* --trace-children-skip=*spamassassin* --trace-children-skip=*fetchmail* --trace-children-skip=*dovecot* --trace-children-skip=*postfix* --trace-children-skip=*exim* --trace-children-skip=*sendmail* --trace-children-skip=*nginx* --trace-children-skip=*apache2* --trace-children-skip=*lighttpd* --trace-children-skip=*php* --trace-children-skip=*mysql* --trace-children-skip=*postgresql* --trace-children-skip=*mosquitto* --trace-children-skip=*influxd* --trace-children-skip=*grafana-server* --trace-children-skip=*memcached* --trace-children-skip=*redis* --trace-children-skip=*mongodb* --trace-children-skip=*cupsd* --trace-children-skip=*darkhttpd* --trace-children-skip=*dnscrypt-proxy* --trace-children-skip=*tor* --trace-children-skip=*tinyproxy* --trace-children-skip=*privoxy* --trace-children-skip=*squid* --trace-children-skip=*polipo* --trace-children-skip=*kamailio* --trace-children-skip=*opensips* --trace-children-skip=*asterisk* --trace-children-skip=*freeswitch* --trace-children-skip=*nagios* --trace-children-skip=*nrpe* --trace-children-skip=*collectd* --trace-children-skip=*snmpd* --trace-children-skip=*openvswitch* --trace-children-skip=*iptables* --trace-children-skip=*ip6tables* --trace-children-skip=*ipset* --trace-children-skip=*ulogd* --trace-children-skip=*dhcp6c* --trace-children-skip=*dhcp6s* --trace-children-skip=*wide-dhcpv6* --trace-children-skip=*radvd* --trace-children-skip=*6relayd* --trace-children-skip=*odhcp6c* --trace-children-skip=*odhcpd-dhcpv6* --trace-children-skip=*ip6tables-save* --trace-children-skip=*ip6tables-restore* --trace-children-skip=*iptables-save* --trace-children-skip=*iptables-restore* --trace-children-skip=*ip6tables-restore* --trace-children-skip=*iptables-restore* --trace-children-skip=*logrotate* --trace-children-skip=*sysupgrade* --trace-children-skip=*opkg* ``` 这里的参数根据需求来调整。 3. 运行 Valgrind 使用 `valgrind` 命令即可运行 Valgrind，例如： ``` valgrind --tool=memcheck --leak-check=full myprogram arg1 arg2 ``` 这里的 `myprogram` 是需要测试的程序，`arg1`、`arg2` 是该程序的参数。 注意：Valgrind 会对程序的运行速度有一定的影响，因此在测试时需要对程序进行压力测试，以确保测试结果的准确性。