Hi Arun,
Thankx again for helping out on this issue. I managed to install the rpm
directly in my box. Here are the details.
[EMAIL PROTECTED] google-perftools-0.8]# rpm -q libunwind
libunwind-0.98.5-2
However, when I tried to compile google profiler, it was throwing the
following error for which i made a change.
In file included from src/malloc_hook.cc:35:
src/base/linux_syscall_support.h: In function `void* sys_mmap(void*,
size_t, int, int, int, __off64_t)':
src/base/linux_syscall_support.h:339: error: invalid conversion from
`long int' to `void*'
make: *** [libtcmalloc_minimal_la-malloc_hook.lo] Error 1
If I make "src/base/linux_syscall_support.h"
339 static inline _syscall6(void *, sys_mmap, void*, s,
size_t, l,
int, p,
int, f,
int, d,
to
static inline _syscall6(long int, sys_mmap, void*, s,
size_t, l,
int, p,
int, f,
int, d,
After this, google profiler was compiled without any issues. However, it
doesnt generate any output with pprof. Is there any other setting required??
[EMAIL PROTECTED] google-perftools-0.8]# ./profiler3_unittest
USAGE: /localdisk/google-perftools-0.8/.libs/lt-profiler3_unittest <iters>
[num_threads] [filename]
iters: How many million times to run the XOR test.
num_threads: how many concurrent threads.
0 or 1 for single-threaded mode,
-# to fork instead of thread.
filename: The name of the output profile.
If you don't specify, set CPUPROFILE in the environment
instead!
PROFILE: interrupts/evictions/bytes = 0/0/64
[EMAIL PROTECTED] google-perftools-0.8]# ./profiler3_unittest 1 10
The XOR test returns 0
PROFILE: interrupts/evictions/bytes = 273/5/784
[EMAIL PROTECTED] google-perftools-0.8]# pprof --text /localdisk/google-
perftools-0.8/.libs/lt-profiler1_unittest /tmp/test.3
On 2/21/07, Arun Sharma <[EMAIL PROTECTED]> wrote:
On 2/20/07, Rajesh Balamohan <[EMAIL PROTECTED]> wrote:
> Hi Arun,
>
> I have raised a bug in source forge for it. I still get that error with
> make.
>
> make LDFLAGS="-lunwind -lunwind-x86_64"
> /bin/sh ./libtool --mode=link g++ -g -O2 -lunwind -lunwind-x86_64 -o
> stacktrace_unittest stacktrace_unittest.o libstacktrace.la
> g++ -g -O2 -o .libs/stacktrace_unittest stacktrace_unittest.o
> /usr/local/lib/libunwind-x86_64.a
> /usr/local/lib/libunwind.a -lgcc -lc ./.libs/libstacktrace.so
-Wl,--rpath
> -Wl,/usr/local/lib
> ./.libs/libstacktrace.so: undefined reference to `_ULx86_64_step'
> ./.libs/libstacktrace.so: undefined reference to `_ULx86_64_get_reg'
> ./.libs/libstacktrace.so: undefined reference to `_ULx86_64_init_local'
> collect2: ld returned 1 exit status
> make: *** [stacktrace_unittest] Error 1
Actually, you don't need -lunwind-x86_64 to link. -lunwind should be
sufficient. On my machine:
$ nm /usr/lib/libunwind.so |grep _ULx86_64_step
0000000000007330 T _ULx86_64_step
libunwind.a - does "local" unwinding for the architecture it was compiled
for
libunwind-${ARCH}.a - does "remote" unwinding for a different
architecture.
google-perftools require only local unwinding.
-Arun
--
~Rajesh.B
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