Gl errors while linking libxxx.so file

[codetiger]

I am trying to port irrlicht game engine with opengles2 driver to NaCl and I am struggling to link libIrrlicht.so file with my sample source files. I was able to build libirrlicht.so with success.

Here is my makefile

PROJECT:=testirrlicht
LDFLAGS:=-lppapi_gles2 -lppapi_cpp -Iinclude -lppapi libs/libIrrlicht.so
CXX_SOURCES:=testirrlicht.cc
 
THIS_MAKEFILE:=$(abspath $(lastword $(MAKEFILE_LIST)))
NACL_SDK_ROOT?=$(abspath $(dir $(THIS_MAKEFILE))../..)
 
CXXFLAGS:=-pthread -g -Wall -Werror -I./include -D_IRR_STATIC_LIB_ -fabi-version=1
 
OSNAME:=win
TC_PATH:=$(abspath $(NACL_SDK_ROOT)/toolchain/$(OSNAME)_x86_newlib)
CXX:=$(TC_PATH)/bin/i686-nacl-g++
 
CYGWIN ?= nodosfilewarning
export CYGWIN
 
all: $(PROJECT)_x86_32.nexe $(PROJECT)_x86_64.nexe
 
# Define 32 bit compile and link rules for C++ sources
x86_32_OBJS:=$(patsubst %.cc,%_32.o,$(CXX_SOURCES))
$(x86_32_OBJS) : %_32.o : %.cc $(THIS_MAKE)
        $(CXX) -o $@ -c $< -m32 -O0 -g $(CXXFLAGS)
 
$(PROJECT)_x86_32.nexe : $(x86_32_OBJS)
        $(CXX) -o $@ $^ -m32 -O0 -g $(CXXFLAGS) $(LDFLAGS)
 
# Define 64 bit compile and link rules for C++ sources
x86_64_OBJS:=$(patsubst %.cc,%_64.o,$(CXX_SOURCES))
$(x86_64_OBJS) : %_64.o : %.cc $(THIS_MAKE)
        $(CXX) -o $@ -c $< -m64 -O0 -g $(CXXFLAGS)
 
$(PROJECT)_x86_64.nexe : $(x86_64_OBJS)
        $(CXX) -o $@ $^ -m64 -O0 -g $(CXXFLAGS) $(LDFLAGS)
 
 
# Define a phony rule so it always runs, to build nexe and start up server.
.PHONY: RUN 
RUN: all
        python ../httpd.py

 

Here is my compilation error:

$ make
/cygdrive/d/naclsdk/pepper_18/toolchain/win_x86_newlib/bin/i686-nacl-g++ -o testirrlicht_x86_3.nexe testirrlicht_32.o -m32 -O0 -g -pthread -g -Wall -Werror -I./include -D_IRR_STATIC_LIB_ -abi-version=1 -lppapi_gles2 -lppapi_cpp -Iinclude -lppapi libs/libIrrlicht.so
/x86_64-nacl-ld: warning: libstdc++.so.6, needed by libs/libIrrlicht.so, not found (try using rpath or -rpath-link)
/x86_64-nacl-ld: warning: libm.so.3c8d1f2e, needed by libs/libIrrlicht.so, not found (try usin -rpath or -rpath-link)
/x86_64-nacl-ld: warning: libgcc_s.so.1, needed by libs/libIrrlicht.so, not found (try using -path or -rpath-link)
/x86_64-nacl-ld: warning: libpthread.so.3c8d1f2e, needed by libs/libIrrlicht.so, not found (tr using -rpath or -rpath-link)
/x86_64-nacl-ld: warning: libc.so.3c8d1f2e, needed by libs/libIrrlicht.so, not found (try usin -rpath or -rpath-link)
libs/libIrrlicht.so: undefined reference to `wcscpy@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glAttachShader'
libs/libIrrlicht.so: undefined reference to `operator new[](unsigned int)@GLIBCXX_3.4'
libs/libIrrlicht.so: undefined reference to `glEnable'
libs/libIrrlicht.so: undefined reference to `glBindAttribLocation'
libs/libIrrlicht.so: undefined reference to `glHint'
libs/libIrrlicht.so: undefined reference to `glLineWidth'
libs/libIrrlicht.so: undefined reference to `wcslen@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `asin@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glIsEnabled'
libs/libIrrlicht.so: undefined reference to `glGetShaderiv'
libs/libIrrlicht.so: undefined reference to `memset@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glFrontFace'
libs/libIrrlicht.so: undefined reference to `glGetActiveUniform'
libs/libIrrlicht.so: undefined reference to `glBindRenderbuffer'
libs/libIrrlicht.so: undefined reference to `glDisable'
libs/libIrrlicht.so: undefined reference to `operator delete(void*)@GLIBCXX_3.4'
libs/libIrrlicht.so: undefined reference to `glTexParameterf'
libs/libIrrlicht.so: undefined reference to `glClear'
libs/libIrrlicht.so: undefined reference to `gmtime@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glFramebufferTexture2D'
libs/libIrrlicht.so: undefined reference to `__cxa_guard_release@CXXABI_1.3'
libs/libIrrlicht.so: undefined reference to `strncpy@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `swprintf@GLIBC_2.2'
libs/libIrrlicht.so: undefined reference to `glGetError'
libs/libIrrlicht.so: undefined reference to `glUniform4iv'
libs/libIrrlicht.so: undefined reference to `mbstowcs@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `strtod@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glStencilFunc'
libs/libIrrlicht.so: undefined reference to `eglInitialize'
libs/libIrrlicht.so: undefined reference to `fmod@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glStencilMask'
libs/libIrrlicht.so: undefined reference to `glGetAttachedShaders'
libs/libIrrlicht.so: undefined reference to `sscanf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glDisableVertexAttribArray'
libs/libIrrlicht.so: undefined reference to `glDeleteProgram'
libs/libIrrlicht.so: undefined reference to `glGenRenderbuffers'
libs/libIrrlicht.so: undefined reference to `__cxa_guard_acquire@CXXABI_1.3'
libs/libIrrlicht.so: undefined reference to `glUniformMatrix4fv'
libs/libIrrlicht.so: undefined reference to `glUseProgram'
libs/libIrrlicht.so: undefined reference to `glClearColor'
libs/libIrrlicht.so: undefined reference to `glUniformMatrix3fv'
libs/libIrrlicht.so: undefined reference to `strcmp@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glUniform1iv'
libs/libIrrlicht.so: undefined reference to `sin@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `longjmp@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `eglCreateContext'
libs/libIrrlicht.so: undefined reference to `localtime@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `ftell@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `sinf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `eglMakeCurrent'
libs/libIrrlicht.so: undefined reference to `glDeleteBuffers'
libs/libIrrlicht.so: undefined reference to `glReadPixels'
libs/libIrrlicht.so: undefined reference to `glDeleteShader'
libs/libIrrlicht.so: undefined reference to `_setjmp@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `eglQueryString'
libs/libIrrlicht.so: undefined reference to `glCheckFramebufferStatus'
libs/libIrrlicht.so: undefined reference to `strtoul@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `puts@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glEnableVertexAttribArray'
libs/libIrrlicht.so: undefined reference to `glGenFramebuffers'
libs/libIrrlicht.so: undefined reference to `glActiveTexture'
libs/libIrrlicht.so: undefined reference to `glBufferData'
libs/libIrrlicht.so: undefined reference to `acosf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `atol@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glColorMask'
libs/libIrrlicht.so: undefined reference to `ferror@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `eglSwapBuffers'
libs/libIrrlicht.so: undefined reference to `floorf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glBlendFunc'
libs/libIrrlicht.so: undefined reference to `glDetachShader'
libs/libIrrlicht.so: undefined reference to `tan@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glGetProgramInfoLog'
libs/libIrrlicht.so: undefined reference to `acos@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glCopyTexSubImage2D'
libs/libIrrlicht.so: undefined reference to `fwrite@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `getenv@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `fseek@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glBindTexture'
libs/libIrrlicht.so: undefined reference to `glRenderbufferStorage'
libs/libIrrlicht.so: undefined reference to `fputc@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glGetProgramiv'
libs/libIrrlicht.so: undefined reference to `glDepthMask'
libs/libIrrlicht.so: undefined reference to `malloc@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glStencilOp'
libs/libIrrlicht.so: undefined reference to `strstr@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `cosf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `printf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glCreateShader'
libs/libIrrlicht.so: undefined reference to `glDeleteTextures'
libs/libIrrlicht.so: undefined reference to `strncmp@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glGenerateMipmap'
libs/libIrrlicht.so: undefined reference to `glBlendEquation'
libs/libIrrlicht.so: undefined reference to `glBufferSubData'
libs/libIrrlicht.so: undefined reference to `glCullFace'
libs/libIrrlicht.so: undefined reference to `glCreateProgram'
libs/libIrrlicht.so: undefined reference to `fflush@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `fread@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `stderr@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `memcpy@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glPixelStorei'
libs/libIrrlicht.so: undefined reference to `glGetIntegerv'
libs/libIrrlicht.so: undefined reference to `strlen@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glGenBuffers'
libs/libIrrlicht.so: undefined reference to `operator delete[](void*)@GLIBCXX_3.4'
libs/libIrrlicht.so: undefined reference to `__errno_location@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `atan2f@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `atan2@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glDrawElements'
libs/libIrrlicht.so: undefined reference to `glDeleteFramebuffers'
libs/libIrrlicht.so: undefined reference to `glFramebufferRenderbuffer'
libs/libIrrlicht.so: undefined reference to `cos@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `eglSwapInterval'
libs/libIrrlicht.so: undefined reference to `glUniformMatrix2fv'
libs/libIrrlicht.so: undefined reference to `glTexImage2D'
libs/libIrrlicht.so: undefined reference to `eglGetError'
libs/libIrrlicht.so: undefined reference to `pow@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glUniform2iv'
libs/libIrrlicht.so: undefined reference to `glDepthFunc'
libs/libIrrlicht.so: undefined reference to `memcmp@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `fopen@GLIBC_2.1'
libs/libIrrlicht.so: undefined reference to `glDrawArrays'
libs/libIrrlicht.so: undefined reference to `fmodf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glDeleteRenderbuffers'
libs/libIrrlicht.so: undefined reference to `glClearDepthf'
libs/libIrrlicht.so: undefined reference to `glScissor'
libs/libIrrlicht.so: undefined reference to `time@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `fprintf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `atof@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glTexSubImage2D'
libs/libIrrlicht.so: undefined reference to `powf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glVertexAttribPointer'
libs/libIrrlicht.so: undefined reference to `atoi@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glGetBooleanv'
libs/libIrrlicht.so: undefined reference to `strcpy@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `wcscmp@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `memmove@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glGetString'
libs/libIrrlicht.so: undefined reference to `glBindBuffer'
libs/libIrrlicht.so: undefined reference to `__assert_fail@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glPolygonOffset'
libs/libIrrlicht.so: undefined reference to `glBindFramebuffer'
libs/libIrrlicht.so: undefined reference to `glLinkProgram'
libs/libIrrlicht.so: undefined reference to `glUniform3iv'
libs/libIrrlicht.so: undefined reference to `abort@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glUniform1fv'
libs/libIrrlicht.so: undefined reference to `glGetShaderInfoLog'
libs/libIrrlicht.so: undefined reference to `__cxa_pure_virtual@CXXABI_1.3'
libs/libIrrlicht.so: undefined reference to `sprintf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glUniform2fv'
libs/libIrrlicht.so: undefined reference to `glShaderSource'
libs/libIrrlicht.so: undefined reference to `__cxa_atexit@GLIBC_2.1.3'
libs/libIrrlicht.so: undefined reference to `exit@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `snprintf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `eglBindAPI'
libs/libIrrlicht.so: undefined reference to `operator new(unsigned int)@GLIBCXX_3.4'
libs/libIrrlicht.so: undefined reference to `glViewport'
libs/libIrrlicht.so: undefined reference to `glUniform3fv'
libs/libIrrlicht.so: undefined reference to `gettimeofday@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glUniform4fv'
libs/libIrrlicht.so: undefined reference to `eglGetDisplay'
libs/libIrrlicht.so: undefined reference to `eglTerminate'
libs/libIrrlicht.so: undefined reference to `glGetUniformLocation'
libs/libIrrlicht.so: undefined reference to `glTexParameteri'
libs/libIrrlicht.so: undefined reference to `eglCreateWindowSurface'
libs/libIrrlicht.so: undefined reference to `free@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `logf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `setlocale@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `fclose@GLIBC_2.1'
libs/libIrrlicht.so: undefined reference to `sqrtf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `glGenTextures'
libs/libIrrlicht.so: undefined reference to `glCompileShader'
libs/libIrrlicht.so: undefined reference to `ceilf@GLIBC_2.0'
libs/libIrrlicht.so: undefined reference to `eglChooseConfig'
libs/libIrrlicht.so: undefined reference to `sqrt@GLIBC_2.0'
collect2: ld returned 1 exit status
Makefile:58: recipe for target `testirrlicht_x86_32.nexe' failed
make: *** [testirrlicht_x86_32.nexe] Error 1

[Victor Khimenko]

.../win_x86_newlib/... ... libs/libIrrlicht.so ?

This will never work: newlib toolchain does not support DSOs. Either recompile your library as .a with newlib toolchain or use glibc toolchain everywhere.

You can not mix binaries built with newlib toolchain and binaries built with glibc toolchain.

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[codetiger]

Yes, thanks for the catch. I compiled the library in glibc and tried compiling sample code with newlib. Now, the errors 

$ make
/cygdrive/d/naclsdk/pepper_18/toolchain/win_x86_glibc/bin/i686-nacl-gcc -o testirrlicht_x86_32.nexe testirrlicht_32.o -m32 -O0 -g -Wall -I./include -lpthread -lppapi_cpp -lppapi -lstdc++ -lgcc -lppapi_gles2 -Iinclude libs/libIrrlicht.so
/libexec/../lib/gcc/x86_64-nacl/4.4.3/../../../../x86_64-nacl/lib/../lib32/libppapi_cpp.so: warning: warning: pthread_cancel is not implemented and will always fail

libs/libIrrlicht.so: undefined reference to `eglCreateWindowSurface'

libs/libIrrlicht.so: undefined reference to `eglBindAPI'

libs/libIrrlicht.so: undefined reference to `eglCreateContext'

libs/libIrrlicht.so: undefined reference to `eglMakeCurrent'

libs/libIrrlicht.so: undefined reference to `eglGetDisplay'

libs/libIrrlicht.so: undefined reference to `eglChooseConfig'

libs/libIrrlicht.so: undefined reference to `eglInitialize'

libs/libIrrlicht.so: undefined reference to `eglQueryString'
/libexec/../lib/gcc/x86_64-nacl/4.4.3/../../../../x86_64-nacl/lib/../lib32/libppapi_cpp.so: undefined reference to `pp::CreateModule()'

libs/libIrrlicht.so: undefined reference to `eglSwapInterval'

libs/libIrrlicht.so: undefined reference to `eglSwapBuffers'

libs/libIrrlicht.so: undefined reference to `eglGetError'

libs/libIrrlicht.so: undefined reference to `eglTerminate'

collect2: ld returned 1 exit status
Makefile:58: recipe for target `testirrlicht_x86_32.nexe' failed
make: *** [testirrlicht_x86_32.nexe] Error 1

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[Gregg Tavares (社用)]

AFAIK NaCl doesn't (yet?) provide EGL bindings. Only GL

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