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-   -   How can i make centos 4.5's system call using vDSO(call *%gs:0x10) instead of int80 (http://www.linuxquestions.org/questions/red-hat-31/how-can-i-make-centos-4-5s-system-call-using-vdso-call-%2Ags-0x10-instead-of-int80-574852/)

tclwp 08-05-2007 08:50 AM

How can i make centos 4.5's system call using vDSO(call *%gs:0x10) instead of int80
 
someone tell me i must recompile the gcc with libunwind enabled, so i copy the intel-icc9-libs(include libunwind) to /usr/lib, and type
#rpmbuild --rebuild gcc-3.4.6-8.src.rpm
#rpmbuild --rebuild glibc-2.3.4-2.36.src.rpm
but after these work done, i disassemble the libc and found it still use the old call style(int 80)
so it seems that the gcc source of redhat didn't use the libunwind automatically:scratch:

any idea ? thanks in advance !!:study:

tclwp 08-05-2007 09:53 AM

--with-system-libunwind

i think i should add this option into
/usr/src/redhat/SPECS/gcc34.spec

tclwp 08-05-2007 09:34 PM

http://rpmfind.net/linux/rpm2html/se...uery=libunwind
go here to download libunwind, but what's the difference between hp's libunwind and intel-icc9-libs's libunwind ?

tclwp 08-06-2007 12:07 AM

all above are done, don't work
any ideas ?:scratch:


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