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On Sat, 28 Mar 2020 15:17:12 -0400 |
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Joshua Kinard <kumba@g.o> wrote: |
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> Noticed during a glibc build for MIPS-III ISA that the -mfix-r4000 |
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> and -mfix-r4400 gcc flags got stripped off. These are needed to work |
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> around known CPU errata in R4000 and R4400 CPUs. In addition, also |
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> add the -mfix-rm7000 option (and it's -mno form) to fix errata in the |
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> PMC RM7000 CPU, and the -mr10k-cache-barrier to control the generation |
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> of cache barriers to work around the side-effects of R10000's |
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> speculative execution capabilities. |
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> |
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> Signed-off-by: Joshua Kinard <kumba@g.o> |
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> --- |
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> eclass/flag-o-matic.eclass | 4 +++- |
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> 1 file changed, 3 insertions(+), 1 deletion(-) |
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> |
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> diff --git a/eclass/flag-o-matic.eclass b/eclass/flag-o-matic.eclass |
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> index e76eef293e..0c67ec9f7a 100644 |
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> --- a/eclass/flag-o-matic.eclass |
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> +++ b/eclass/flag-o-matic.eclass |
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> @@ -56,7 +56,9 @@ setup-allowed-flags() { |
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> -mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi |
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> -mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel |
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> -mstack-bias -mno-stack-bias -msecure-plt '-m*-toc' -mfloat-abi |
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> - -mfix-r10000 -mno-fix-r10000 -mthumb -marm |
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> + -mfix-r4000 -mno-fix-r4000 -mfix-r4400 -mno-fix-r4400 |
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> + -mfix-rm7000 -mno-fix-rm7000 -mfix-r10000 -mno-fix-r10000 |
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> + -mr10k-cache-barrier -mthumb -marm |
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> |
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> # gcc 4.5 |
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> -mno-fma4 -mno-movbe -mno-xop -mno-lwp |
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Looks good! |
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-- |
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|
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Sergei |
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