On Tue, May 5, 2020 at 10:36 AM Eric Botcazou <botca...@adacore.com> wrote: > > Hi, > > the link phase is always partial (-r) for VxWorks in kernel mode, which means > that it uses incremental LTO linking by default (-flinker-output=rel). But in > this mode the LTO plugin outputs a warning if one of the object files involved > in the link does not contain LTO bytecode, before switching to nolto-rel mode. > We do not do repeated incremental linking for VxWorks so silence the warning. > > Tested on PowerPC/VxWorks 7.2, OK for the mainline?
I know it's hidden but can we make the plugin option more specific, like -linker-output-auto-notlo-rel? There's also no documentation for the lto-plugin switches, I think a good place is a comment before + else if (strcmp (option, "-linker-output-no-warning") == 0) + linker_output_no_warning = true; explaining the rationale/use-case. Otherwise looks OK to me. Richard. > > 2020-05-05 Eric Botcazou <ebotca...@adacore.com> > > * lto-plugin.c (linker_output_set): Change type to bool. > (linker_output_known): Likewise. > (linker_output_no_warning): New variable. > (all_symbols_read_handler): Take it into account. > <LDPO_REL>: Do not issue the warning if it is set. > (process_option): Process it. > (cleanup_handler): Remove unused variable. > (onload) <LDPT_LINKER_OUTPUT>: Adjust to above type change. > > > 2020-05-05 Eric Botcazou <ebotca...@adacore.com> > > * gcc.c (LTO_PLUGIN_SPEC): Define if not already. > (LINK_PLUGIN_SPEC): Execute LTO_PLUGIN_SPEC. > * config/vxworks.h (LTO_PLUGIN_SPEC): Define. > > -- > Eric Botcazou
