Comment 7 for bug 1814397

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stewo (wolfer-y) wrote : [Autoreply] [Bug 1814397] Re: GCC 8 LTO fails on Windows with -g/-g3

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Mit freundlichen Grüßen / Best regards

Steffen Wolfer

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Dipl.-Inform. Steffen Wolfer
Software Engineer Embedded Systems

WEISS ROBOTICS GmbH & Co. KG
Karl-Heinrich-Käferle-Str. 8
D-71640 Ludwigsburg, Germany

Phone: +49 7141 94702-22
Fax: +49 7141 94702-99
http://www.weiss-robotics.com

Sitz der Gesellschaft: Ludwigsburg
Registergericht Stuttgart, HRA725006

Pers. haftende Gesellschafterin:
Weiss Robotics Verwaltungs-GmbH, Sitz Ludwigsburg
Registergericht Stuttgart, HRB73310
Geschäftsführer: Dr. Karsten Weiß

Fixed in 8.3-2019-08 release

** Changed in: gcc-arm-embedded
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1814397

Title:
  GCC 8 LTO fails on Windows with -g/-g3

Status in GNU Arm Embedded Toolchain:
  Fix Released

Bug description:
  GCC 8-2018-q4
  Windows 10 64-bit
  Errors:
    ELF section name out of range
    ld: lto-wrapper failed

  The project(s) are generated with the GNU MCU Eclipse STM32F4
  template.

  I tried both C and C++ projects, both fail if I enable LTO, and build
  properly if I disable LTO.

  They also build properly if I remove -g/-g3.

  The console reads:

  c:/users/ilg/appdata/roaming/gnu tools arm embedded/8-2018-q4/bin/../lib/gcc/arm-none-eabi/8.2.1/../../../../arm-none-eabi/bin/ld.exe: error: C:\Users\ilg\AppData\Local\Temp\cc08jQRZdebugobjtem: ELF section name out of range
  collect2.exe: error: ld returned 1 exit status
  lto-wrapper.exe: fatal error: arm-none-eabi-g++ returned 1 exit status
  compilation terminated.
  c:/users/ilg/appdata/roaming/gnu tools arm embedded/8-2018-q4/bin/../lib/gcc/arm-none-eabi/8.2.1/../../../../arm-none-eabi/bin/ld.exe: error: lto-wrapper failed
  collect2.exe: error: ld returned 1 exit status
  make: *** [makefile:64: f4b-lto.elf] Error 1
  "make all" terminated with exit code 2. Build might be incomplete.

  Both the original Arm binary and the similar GNU MCU Eclipse ARM
  Embedded GCC binary behave the same.

  The problem seems to affect only the Windows binary; on Linux and
  macOS, projects created with exactly the same procedure, pass the
  build as expected.

  Building target: f4b-lto.elf
  Invoking: GNU ARM Cross C++ Linker
  arm-none-eabi-g++ -mcpu=cortex-m4 -mthumb -mfloat-abi=soft -Os -fmessage-length=0 -fsigned-char -ffunction-sections -fdata-sections -ffreestanding -flto -Wall -Wextra -g -T mem.ld -T libs.ld -T sections.ld -nostartfiles -Xlinker --gc-sections -L"../ldscripts" -Wl,-Map,"f4b-lto.map" --specs=nano.specs -o "f4b-lto.elf" ./system/src/stm32f4-hal/stm32f4xx_hal.o ./system/src/stm32f4-hal/stm32f4xx_hal_cortex.o ./system/src/stm32f4-hal/stm32f4xx_hal_dfsdm.o ./system/src/stm32f4-hal/stm32f4xx_hal_flash.o ./system/src/stm32f4-hal/stm32f4xx_hal_gpio.o ./system/src/stm32f4-hal/stm32f4xx_hal_iwdg.o ./system/src/stm32f4-hal/stm32f4xx_hal_pwr.o ./system/src/stm32f4-hal/stm32f4xx_hal_rcc.o ./system/src/newlib/_cxx.o ./system/src/newlib/_exit.o ./system/src/newlib/_sbrk.o ./system/src/newlib/_startup.o ./system/src/newlib/_syscalls.o ./system/src/newlib/assert.o ./system/src/diag/Trace.o ./system/src/diag/trace_impl.o ./system/src/cortexm/_initialize_hardware.o ./system/src/cortexm/_reset_hardware.o ./system/src/cortexm/exception_handlers.o ./system/src/cmsis/system_stm32f4xx.o ./system/src/cmsis/vectors_stm32f407xx.o ./src/BlinkLed.o ./src/Timer.o ./src/_initialize_hardware.o ./src/_write.o ./src/main.o ./src/stm32f4xx_hal_msp.o
  Finished building target: f4b-lto.elf

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