diff options
| author | Sverker Eriksson <[email protected]> | 2011-12-07 17:08:16 +0100 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2011-12-07 17:13:58 +0100 |
| commit | ea93ca94a8a73d5e3f27f6a23cdb82870ab66da8 (patch) | |
| tree | bd8000562e458aeff37e5b9eaac506362ccb02e8 | |
| parent | fd73fcc88fb6ae8a034a40744906a7c945423b3e (diff) | |
| download | otp-ea93ca94a8a73d5e3f27f6a23cdb82870ab66da8.tar.gz otp-ea93ca94a8a73d5e3f27f6a23cdb82870ab66da8.tar.bz2 otp-ea93ca94a8a73d5e3f27f6a23cdb82870ab66da8.zip | |
erts: Suppress valgrind warning about syscall sendmsg
Valgrind complains: "Syscall param socketcall.sendmsg(msg.msg_control)
points to uninitialised byte(s)".
Seems valgrind do not know which bytes of msg_control are padding.
| -rw-r--r-- | erts/emulator/drivers/common/inet_drv.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c index 80b2add939..8ddba39243 100644 --- a/erts/emulator/drivers/common/inet_drv.c +++ b/erts/emulator/drivers/common/inet_drv.c @@ -539,6 +539,13 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) (((unsigned char*) (s))[1] << 8) | \ (((unsigned char*) (s))[0])) + +#ifdef VALGRIND +# include <valgrind/memcheck.h> +#else +# define VALGRIND_MAKE_MEM_DEFINED(ptr,size) +#endif + /*---------------------------------------------------------------------------- ** Interface constants. ** @@ -10238,6 +10245,7 @@ static void packet_inet_command(ErlDrvData e, char* buf, int len) cmsg.hdr.cmsg_level = IPPROTO_SCTP; cmsg.hdr.cmsg_type = SCTP_SNDRCV; cmsg.hdr.cmsg_len = CMSG_LEN(sizeof(*sri)); + VALGRIND_MAKE_MEM_DEFINED(&cmsg, (char*)sri - (char*)&cmsg); /*suppress padding as "uninitialised bytes"*/ data_len = (buf + len) - ptr; /* The whole msg. |