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GNU Arm Embedded ld with LTO support

mastupristi

The current version 7-2018-q2-update of GNU Arm Embedded Toolchain contains arm-none-eabi-ld.bfd, so it does not support Link Time Optimization (LTO).
Is there a problem if I try to compile the LTO version? Is the new linker lto hoping to work? Why wasn't it done? Both versions could be distributed, bfd and lto.

best regards

Max

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  • 0 Arm Employee Badge in reply to mastupristi

    Hi,

    -flto when linking needs to be passed to GCC, no ld. GCC with then invoke ld with special option to run the LTO plugin. So in your link command line replace ld by gcc (and translate ld specific options to use "-Wl," switch). This will allow you to link successfully an application compiled with LTO.

    Best regards.

Reply
  • 0 Arm Employee Badge in reply to mastupristi

    Hi,

    -flto when linking needs to be passed to GCC, no ld. GCC with then invoke ld with special option to run the LTO plugin. So in your link command line replace ld by gcc (and translate ld specific options to use "-Wl," switch). This will allow you to link successfully an application compiled with LTO.

    Best regards.

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