Can't Build with Link-time Optimizer Enabled

cancel
Showing results for 
Search instead for 
Did you mean: 

Can't Build with Link-time Optimizer Enabled

Jump to solution
3,197 Views
peterb2
Contributor III

Enabling the link-time optimizer (-flto) option in the build settings causes my builds to fail in the following way:

Invoking: Standard S32DS C++ Linker
powerpc-eabivle-g++ -o "link_opt_Z7_0.elf" "@link_opt_Z7_0.args"    
powerpc-eabivle-g++.exe: error: nosys.specs: No such file or directory
lto-wrapper: c:\NXP\S32DS_Power_v1.2\Cross_Tools\powerpc-eabivle-4_9\bin\powerpc-eabivle-g++.exe returned 1 exit status
c:/nxp/s32ds_power_v1.2/cross_tools/powerpc-eabivle-4_9/bin/../lib/gcc/powerpc-eabivle/4.9.4/../../../../powerpc-eabivle/bin/real-ld.exe: error: lto-wrapper failed
collect2.exe: error: ld returned 1 exit status
make: *** [link_opt_Z7_0.elf] Error 1‍‍‍‍‍‍‍

It appears that the linker cannot find the nosys.specs file when this option is enabled.  It doesn't have a problem when it is disabled.

If I am missing any other set-up I should also be doing in conjunction with enabling this option, does anyone have any tips or pointers for me?

This can be reproduced with a new S32DS project (I am using S32DS for PowerPC V1.2)

  1. Start a new project
  2. I selected the MPC5777C core (it probably doesn't matter)
    1. C++ for the language
    2. NewLib for the library
  3. In the build settings of S32DS , enable the link-time optimizer (-flto) option.  I did this for both C and C++ settings
  4. Compile
Labels (1)
0 Kudos
1 Solution
2,048 Views
alexanderfedoto
NXP Employee
NXP Employee

This issue is common for ARM and Power GCC toolchain.

Regarding to Newlib libraries workaround is to move libraries from powerpc-eabivle\newlib\lib to  powerpc-eabivle\lib

mv powerpc-eabivle\newlib\lib powerpc-eabivle\lib

 

View solution in original post

0 Kudos
7 Replies
2,049 Views
alexanderfedoto
NXP Employee
NXP Employee

This issue is common for ARM and Power GCC toolchain.

Regarding to Newlib libraries workaround is to move libraries from powerpc-eabivle\newlib\lib to  powerpc-eabivle\lib

mv powerpc-eabivle\newlib\lib powerpc-eabivle\lib

 

0 Kudos
2,048 Views
riccardolalli
Contributor I

Hello, I have the same issue with S32DS for ARM 1.3, with ewl_c library and -flto option.

This is my build log:

Building target: dummy_project.elf
Executing target #5 dummy_project.elf
Invoking: Standard S32DS C Linker
arm-none-eabi-gcc -o "dummy_project.elf" "@dummy_project.args"   
arm-none-eabi-gcc.exe: error: ewl_c9x_noio.specs: No such file or directory
lto-wrapper: c:\NXP\S32DS_ARM_v1.3\Cross_Tools\gcc-arm-none-eabi-4_9\bin\arm-none-eabi-gcc.exe returned 1 exit status
c:/nxp/s32ds_arm_v1.3/cross_tools/gcc-arm-none-eabi-4_9/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/bin/ld.exe: lto-wrapper failed
collect2.exe: error: ld returned 1 exit status
make: *** [dummy_project.elf] Error 1

Is there a solution like the one for newlib?

Thanks,

Riccardo

0 Kudos
2,048 Views
alexanderfedoto
NXP Employee
NXP Employee

Workaround should be the same:

mv S32DS\arm_ewl2\lib Cross_Tools\gcc-arm-none-eabi-4_9\arm-none-eabi\lib‍
0 Kudos
2,047 Views
riccardolalli
Contributor I

It worked, thank you.

0 Kudos
2,047 Views
stanish
NXP Employee
NXP Employee

Hi Peter,

Thanks for this report. I'm able to reproduce it easily.

I've logged this issue into our defect tracking system.

Our compiler experts are going to analyze this particular issue.

At the moment the only workaround is not to use -flno switch

Regards,

Stan

0 Kudos
2,047 Views
fyw
Contributor IV

Hi  Sliva:

     I use the method from "Alexander Fedotov " (mv powerpc-eabivle\newlib\lib  powerpc-eabivle\lib)and still didn't work.  I search the folder "Cross_Tools" and find no file named "ewl_c9x_noio.specs". Is there any way that i can enable the link-time optimizer (-flto) option

Thank you very much!

AAA.PNG

The build infomation list below:

Building target: SMS_PRJ_Z7_0.elf
Executing target #112 SMS_PRJ_Z7_0.elf
Invoking: Standard S32DS C Linker
powerpc-eabivle-gcc -o "SMS_PRJ_Z7_0.elf" "@SMS_PRJ_Z7_0.args"
powerpc-eabivle-gcc.exe: error: ewl_c9x_noio.specs: No such file or directory
lto-wrapper: c:\Freescale\S32_Power_v1.2\Cross_Tools\powerpc-eabivle-4_9\bin\powerpc-eabivle-gcc.exe returned 1 exit status
c:/freescale/s32_power_v1.2/cross_tools/powerpc-eabivle-4_9/bin/../lib/gcc/powerpc-eabivle/4.9.4/../../../../powerpc-eabivle/bin/real-ld.exe: error: lto-wrapper failed
collect2.exe: error: ld returned 1 exit status
make: *** [SMS_PRJ_Z7_0.elf] Error 1

0 Kudos
2,047 Views
alexanderfedoto
NXP Employee
NXP Employee

You are using EWL2 specs and EWL2 libs respectively. so in this case you need to move/copy lib folder from EWL2.

See my answer below for ARM.

For Power the trick almost the same:

mv S32DS\e200_ewl2\lib Cross_Tools\powerpv-eabivle-4_9\powerpc-eabivle\lib
‍
0 Kudos