How can i make centos 4.5's system call using vDSO(call *%gs:0x10) instead of int80

tclwp · 08-05-2007, 08:50 AM

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

any idea ? thanks in advance !!

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 ?