2010-09-09 05:46:11 lmudflapth

Mahalakshmi M (INDIA)

Message: 93299

Hi,

I have enabled -fmudflap and -lmudflap while compilation and Linking for my sample Application code.It worked fine and mudflap violations came.

Then i tried with my Multithreaded application with the following options.

UCLINUX_COMPILE_OPTIONS = -Wall -Wstrict-prototypes -Wshadow -Os -fomit-frame-pointer -D_GNU_SOURCE -DNDEBUG -O2 -Dlinux -D__linux__ -Dunix -D__uClinux__ -DEMBED -fno-builtin -fmudflapth

UCLINUX_COMPILE_OPTIONS_CXX = -Wall -Wshadow -Os -fomit-frame-pointer -D_GNU_SOURCE -DNDEBUG -O2 -Dlinux -D__linux__ -Dunix -D__uClinux__ -DEMBED -fno-builtin -fmudflapth

LDLIBS += -lpthread -lmudflapth

With these options mudflap violations are not happening.

Will mudflap work for multithreaded application?

Please find the below output got for non threaded and threaded application.

Non Threaded Application [ enabled options is -fmudflap and -lmudflap ]

*********************************************************************************

root:/> ./Sample

HELLO WORLD

*******

mudflap violation 1 (check/read): time=1207010531.882000 ptr=0x674f128 size=4

pc=0x6a27d62 location=`Thread.c:8 (ETH_ThreadRunFunction)'

[0x0x6a270a2]