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[Qemu-devel] build with trace enabled is broken by the commit c572f23a3e


From: Max Filippov
Subject: [Qemu-devel] build with trace enabled is broken by the commit c572f23a3e7180dbeab5e86583e43ea2afed6271 hw/9pfs: Introduce tracing for 9p pdu handlers
Date: Thu, 20 Oct 2011 23:20:54 +0400
User-agent: KMail/1.13.7 (Linux/2.6.40.6-0.fc15.x86_64; KDE/4.6.5; x86_64; ; )

Hi.

Current git head build with trace enabled is broken by the commit 
c572f23a3e7180dbeab5e86583e43ea2afed6271 hw/9pfs: Introduce tracing for 9p pdu 
handlers.
Error messages:

In file included from trace.c:2:0:
trace.h: In function ‘trace_v9fs_attach’:
trace.h:2850:9: error: too many arguments for format [-Werror=format-extra-args]
trace.h: In function ‘trace_v9fs_wstat’:
trace.h:3039:9: error: too many arguments for format [-Werror=format-extra-args]
trace.h: In function ‘trace_v9fs_mkdir’:
trace.h:3088:9: error: too many arguments for format [-Werror=format-extra-args]
trace.h: In function ‘trace_v9fs_mkdir_return’:
trace.h:3095:9: error: too many arguments for format [-Werror=format-extra-args]
cc1: all warnings being treated as errors

Prototypes in the trace-events do not match format strings, e.g.

v9fs_attach(uint16_t tag, uint8_t id, int32_t fid, int32_t afid, char* uname, 
char* aname) "tag %d id %d fid %d afid %d aname %s"

The following patch fixes it, but I'm not sure the format lines are appropriate.

diff --git a/trace-events b/trace-events
index fc13733..d04fe3e 100644
--- a/trace-events
+++ b/trace-events
@@ -557,7 +557,7 @@ open_eth_desc_write(uint32_t addr, uint32_t v) "DESC[%04x] 
<- %08x"
 complete_pdu(uint16_t tag, uint8_t id, int err) "tag %d id %d err %d"
 v9fs_version(uint16_t tag, uint8_t id, int32_t msize, char* version) "tag %d 
id %d msize %d version %s"
 v9fs_version_return(uint16_t tag, uint8_t id, int32_t msize, char* version) 
"tag %d id %d msize %d version %s"
-v9fs_attach(uint16_t tag, uint8_t id, int32_t fid, int32_t afid, char* uname, 
char* aname) "tag %d id %d fid %d afid %d aname %s"
+v9fs_attach(uint16_t tag, uint8_t id, int32_t fid, int32_t afid, char* uname, 
char* aname) "tag %d id %d fid %d afid %d uname %s aname %s"
 v9fs_attach_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, 
int64_t path) "tag %d id %d type %d version %d path %"PRId64""
 v9fs_stat(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d"
 v9fs_stat_return(uint16_t tag, uint8_t id, int32_t mode, int32_t atime, 
int32_t mtime, int64_t length) "tag %d id %d stat={mode %d atime %d mtime %d 
length %"PRId64"}"
@@ -584,15 +584,15 @@ v9fs_symlink_return(uint16_t tag, uint8_t id, int8_t 
type, int32_t version, int6
 v9fs_flush(uint16_t tag, uint8_t id, int16_t flush_tag) "tag %d id %d 
flush_tag %d"
 v9fs_link(uint16_t tag, uint8_t id, int32_t dfid, int32_t oldfid, char* name) 
"tag %d id %d dfid %d oldfid %d name %s"
 v9fs_remove(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d"
-v9fs_wstat(uint16_t tag, uint8_t id, int32_t fid, int32_t mode, int32_t atime, 
int32_t mtime) "tag %d id %d fid %d stat={mode %d atime %d mtime}"
+v9fs_wstat(uint16_t tag, uint8_t id, int32_t fid, int32_t mode, int32_t atime, 
int32_t mtime) "tag %d id %d fid %d stat={mode %d atime %d mtime %d}"
 v9fs_mknod(uint16_t tag, uint8_t id, int32_t fid, int mode, int major, int 
minor) "tag %d id %d fid %d mode %d major %d minor %d"
 v9fs_mknod_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, 
int64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}"
 v9fs_lock(uint16_t tag, uint8_t id, int32_t fid, uint8_t type, uint64_t start, 
uint64_t length) "tag %d id %d fid %d type %d start %"PRIu64" length %"PRIu64""
 v9fs_lock_return(uint16_t tag, uint8_t id, int8_t status) "tag %d id %d status 
%d"
 v9fs_getlock(uint16_t tag, uint8_t id, int32_t fid, uint8_t type, uint64_t 
start, uint64_t length)"tag %d id %d fid %d type %d start %"PRIu64" length 
%"PRIu64""
 v9fs_getlock_return(uint16_t tag, uint8_t id, uint8_t type, uint64_t start, 
uint64_t length, uint32_t proc_id) "tag %d id %d type %d start %"PRIu64" length 
%"PRIu64" proc_id %u"
-v9fs_mkdir(uint16_t tag, uint8_t id, int32_t fid, char* name, int mode, 
uint32_t gid) "tag %d id %d fid %d name %s mode %d"
-v9fs_mkdir_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, 
int64_t path, int err) "tag %d id %d qid={type %d version %d path %"PRId64"}"
+v9fs_mkdir(uint16_t tag, uint8_t id, int32_t fid, char* name, int mode, 
uint32_t gid) "tag %d id %d fid %d name %s mode %d gid %d"
+v9fs_mkdir_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, 
int64_t path, int err) "tag %d id %d qid={type %d version %d path %"PRId64"} 
err %d"
 v9fs_xattrwalk(uint16_t tag, uint8_t id, int32_t fid, int32_t newfid, char* 
name) "tag %d id %d fid %d newfid %d name %s"
 v9fs_xattrwalk_return(uint16_t tag, uint8_t id, int64_t size) "tag %d id %d 
size %"PRId64""
 v9fs_xattrcreate(uint16_t tag, uint8_t id, int32_t fid, char* name, int64_t 
size, int flags) "tag %d id %d fid %d name %s size %"PRId64" flags %d"


Thanks.
-- Max



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