> On Aug 22, 2017, at 4:01 AM, Kevin Darbyshire-Bryant > <ke...@darbyshire-bryant.me.uk> wrote: > > Drop 300-mips_Os_cpu_rtx_cost_model.patch for gcc 7.2 > > This was causing mis-compilation of dropbear with the default '-Os' size > optimization as reported in FS#814 > > Tested on ar71xx, archer C7 v2. For size comparison of my whole build: > > 12058628 O2-withoutpatch-dropbearworks.bin > 12058628 O2-withpatch-dropbearworks.bin > 11468804 Os-withoutpatch-dropbearworks.bin > 11468804 Os-withpatch-dropbearfails.bin > > Signed-off-by: Kevin Darbyshire-Bryant <ke...@darbyshire-bryant.me.uk> > --- > .../7.2.0/300-mips_Os_cpu_rtx_cost_model.patch | 21 --------------------- > 1 file changed, 21 deletions(-) > delete mode 100644 > toolchain/gcc/patches/7.2.0/300-mips_Os_cpu_rtx_cost_model.patch > > diff --git a/toolchain/gcc/patches/7.2.0/300-mips_Os_cpu_rtx_cost_model.patch > b/toolchain/gcc/patches/7.2.0/300-mips_Os_cpu_rtx_cost_model.patch > deleted file mode 100644 > index 84c0fda..0000000 > --- a/toolchain/gcc/patches/7.2.0/300-mips_Os_cpu_rtx_cost_model.patch > +++ /dev/null > @@ -1,21 +0,0 @@ > -commit ecf7671b769fe96f7b5134be442089f8bdba55d2 > -Author: Felix Fietkau <n...@nbd.name> > -Date: Thu Aug 4 20:29:45 2016 +0200 > - > -gcc: add a patch to generate better code with Os on mips > - > -Also happens to reduce compressed code size a bit > - > -Signed-off-by: Felix Fietkau <n...@nbd.name> > - > ---- a/gcc/config/mips/mips.c > -+++ b/gcc/config/mips/mips.c > -@@ -19784,7 +19784,7 @@ mips_option_override (void) > - flag_pcc_struct_return = 0; > - > - /* Decide which rtx_costs structure to use. */ > -- if (optimize_size) > -+ if (0 && optimize_size) > - mips_cost = &mips_rtx_cost_optimize_size; > - else > - mips_cost = &mips_rtx_cost_data[mips_tune]; > -- > 2.7.4
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