Message ID | 20131127101048.GI20559@hall.aurel32.net |
---|---|
State | New |
Headers | show |
On 27 November 2013 11:10, Aurelien Jarno <aurel32@debian.org> wrote: > On Thu, Jun 20, 2013 at 02:26:12PM +0200, Matthias Klose wrote: >> Am 13.06.2013 11:42, schrieb Richard Sandiford: >> > "Bernhard Reutner-Fischer" <rep.dot.nop@gmail.com> writes: >> >> On 12 June 2013 20:20:50 Richard Sandiford <rdsandiford@googlemail.com> wrote: >> >>> Matthias Klose <doko@ubuntu.com> writes: >> >>>> Index: config/mips/t-linux64 >> >>>> =================================================================== >> >>>> --- config/mips/t-linux64 (revision 200012) >> >>>> +++ config/mips/t-linux64 (working copy) >> >>>> @@ -24,3 +24,13 @@ >> >>>> ../lib32$(call >> >>> if_multiarch,:mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \ >> >>>> ../lib$(call if_multiarch,:mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \ >> >>>> ../lib64$(call >> >>>> if_multiarch,:mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT)) >> >>>> + >> >>>> +ifneq (,$(findstring abin32,$(target))) >> >>>> +MULTIARCH_DIRNAME = $(call >> >>> if_multiarch,mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) >> >>>> +else >> >>>> +ifneq (,$(findstring abi64,$(target))) >> >>>> +MULTIARCH_DIRNAME = $(call >> >>> if_multiarch,mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT)) >> >>>> +else >> >>>> +MULTIARCH_DIRNAME = $(call >> >>> if_multiarch,mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) >> >>>> +endif >> >>>> +endif >> >>> >> >>> findstring seems a bit fragile for a full triple. I think it would >> >>> be better to have something similar to the current MIPS_SOFT definition: >> >>> >> >>> MIPS_SOFT = $(if $(strip $(filter MASK_SOFT_FLOAT_ABI, >> >>> $(target_cpu_default)) $(filter soft, $(with_float))),soft) >> >>> >> >>> but for ABIs. It could then also take with_abi into account. >> >>> Maybe something like: >> >>> >> >>> MIPS_ABI = $(or $(with_abi), \ >> >>> $(if $(filter MIPS_ABI_DEFAULT=ABI_N32, \ >> >>> $(target_cpu_default)), n32), \ >> >>> o32) >> >>> >> >>> (completely untested). >> >> >> >> Bikeshedding: >> >> Doko would know, but ISTR that $(or) did not exist in make-3.80 which is >> >> currently the minimum prerequisite, fwiw. >> > >> > Gah, that's a pity. Thanks for the catch though. Maybe firstword >> > would be OK instead. >> > >> > I see I also fell into the usual ABI trap. It wouldn't have affected >> > the use in this patch, but the default ought to be "32" rather than "o32". >> >> the define is in tm_defines, not target_cpu_default. >> >> MIPS_ABI = $(or $(with_abi), \ >> $(if $(filter MIPS_ABI_DEFAULT=ABI_N32, \ >> $(tm_defines)), n32), \ >> 32) >> >> However I can't see yet how this should be used. Maybe Aurelian could come up >> with a tested version of this patch? >> > > How about the patch below? > > It first determines the ABI without using $(or), by looking (in this > order) for $(with_abi), $(tm_defines) and $(target), defaulting to 32 > if none of the previous matches. > > Then the multiarch path is constructed from the ABI. > > Index: gcc/config/mips/t-linux64 > =================================================================== > --- gcc/config/mips/t-linux64 (révision 205437) > +++ gcc/config/mips/t-linux64 (copie de travail) > @@ -24,3 +24,22 @@ > ../lib32$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \ > ../lib$(call if_multiarch,:mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \ > ../lib64$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT)) > + > +ifneq ($(with_abi),) > +MIPS_ABI = $(with_abi) > +endif > +ifeq ($(MIPS_ABI),) > +MIPS_ABI=$(if $(strip $(filter MIPS_ABI_DEFAULT=ABI_N32, $(tm_defines))),n32) > +endif > +ifeq ($(MIPS_ABI),) > +MIPS_ABI = $(subst abi,,$(subst gnu,,$(lastword $(subst -, ,$(target))))) > +endif > +ifeq ($(MIPS_ABI),) > +MIPS_ABI=32 > +endif > + > +ifeq ($(MIPS_ABI),32) > +MULTIARCH_DIRNAME = $(call if_multiarch,mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) > +else > +MULTIARCH_DIRNAME = $(call if_multiarch,mips64$(MIPS_EL)-linux-gnuabi$(MIPS_ABI)$(MIPS_SOFT)) hm, shouldn't this be gnueabi with an 'e' or is that implied for n64 anyway? just curious.. thanks, > +endif > > -- > Aurelien Jarno GPG: 1024D/F1BCDB73 > aurelien@aurel32.net http://www.aurel32.net
On Wed, Nov 27, 2013 at 12:55:54PM +0100, Bernhard Reutner-Fischer wrote: > On 27 November 2013 11:10, Aurelien Jarno <aurel32@debian.org> wrote: > > On Thu, Jun 20, 2013 at 02:26:12PM +0200, Matthias Klose wrote: > >> Am 13.06.2013 11:42, schrieb Richard Sandiford: > >> > "Bernhard Reutner-Fischer" <rep.dot.nop@gmail.com> writes: > >> >> On 12 June 2013 20:20:50 Richard Sandiford <rdsandiford@googlemail.com> wrote: > >> >>> Matthias Klose <doko@ubuntu.com> writes: > >> >>>> Index: config/mips/t-linux64 > >> >>>> =================================================================== > >> >>>> --- config/mips/t-linux64 (revision 200012) > >> >>>> +++ config/mips/t-linux64 (working copy) > >> >>>> @@ -24,3 +24,13 @@ > >> >>>> ../lib32$(call > >> >>> if_multiarch,:mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \ > >> >>>> ../lib$(call if_multiarch,:mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \ > >> >>>> ../lib64$(call > >> >>>> if_multiarch,:mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT)) > >> >>>> + > >> >>>> +ifneq (,$(findstring abin32,$(target))) > >> >>>> +MULTIARCH_DIRNAME = $(call > >> >>> if_multiarch,mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) > >> >>>> +else > >> >>>> +ifneq (,$(findstring abi64,$(target))) > >> >>>> +MULTIARCH_DIRNAME = $(call > >> >>> if_multiarch,mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT)) > >> >>>> +else > >> >>>> +MULTIARCH_DIRNAME = $(call > >> >>> if_multiarch,mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) > >> >>>> +endif > >> >>>> +endif > >> >>> > >> >>> findstring seems a bit fragile for a full triple. I think it would > >> >>> be better to have something similar to the current MIPS_SOFT definition: > >> >>> > >> >>> MIPS_SOFT = $(if $(strip $(filter MASK_SOFT_FLOAT_ABI, > >> >>> $(target_cpu_default)) $(filter soft, $(with_float))),soft) > >> >>> > >> >>> but for ABIs. It could then also take with_abi into account. > >> >>> Maybe something like: > >> >>> > >> >>> MIPS_ABI = $(or $(with_abi), \ > >> >>> $(if $(filter MIPS_ABI_DEFAULT=ABI_N32, \ > >> >>> $(target_cpu_default)), n32), \ > >> >>> o32) > >> >>> > >> >>> (completely untested). > >> >> > >> >> Bikeshedding: > >> >> Doko would know, but ISTR that $(or) did not exist in make-3.80 which is > >> >> currently the minimum prerequisite, fwiw. > >> > > >> > Gah, that's a pity. Thanks for the catch though. Maybe firstword > >> > would be OK instead. > >> > > >> > I see I also fell into the usual ABI trap. It wouldn't have affected > >> > the use in this patch, but the default ought to be "32" rather than "o32". > >> > >> the define is in tm_defines, not target_cpu_default. > >> > >> MIPS_ABI = $(or $(with_abi), \ > >> $(if $(filter MIPS_ABI_DEFAULT=ABI_N32, \ > >> $(tm_defines)), n32), \ > >> 32) > >> > >> However I can't see yet how this should be used. Maybe Aurelian could come up > >> with a tested version of this patch? > >> > > > > How about the patch below? > > > > It first determines the ABI without using $(or), by looking (in this > > order) for $(with_abi), $(tm_defines) and $(target), defaulting to 32 > > if none of the previous matches. > > > > Then the multiarch path is constructed from the ABI. > > > > Index: gcc/config/mips/t-linux64 > > =================================================================== > > --- gcc/config/mips/t-linux64 (révision 205437) > > +++ gcc/config/mips/t-linux64 (copie de travail) > > @@ -24,3 +24,22 @@ > > ../lib32$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \ > > ../lib$(call if_multiarch,:mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \ > > ../lib64$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT)) > > + > > +ifneq ($(with_abi),) > > +MIPS_ABI = $(with_abi) > > +endif > > +ifeq ($(MIPS_ABI),) > > +MIPS_ABI=$(if $(strip $(filter MIPS_ABI_DEFAULT=ABI_N32, $(tm_defines))),n32) > > +endif > > +ifeq ($(MIPS_ABI),) > > +MIPS_ABI = $(subst abi,,$(subst gnu,,$(lastword $(subst -, ,$(target))))) > > +endif > > +ifeq ($(MIPS_ABI),) > > +MIPS_ABI=32 > > +endif > > + > > +ifeq ($(MIPS_ABI),32) > > +MULTIARCH_DIRNAME = $(call if_multiarch,mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) > > +else > > +MULTIARCH_DIRNAME = $(call if_multiarch,mips64$(MIPS_EL)-linux-gnuabi$(MIPS_ABI)$(MIPS_SOFT)) > > hm, shouldn't this be gnueabi with an 'e' or is that implied for n64 anyway? > just curious.. > thanks, This is correct, the abis are n32 and 64. MIPS EABI is another ABI which hasn't really existed in practice.
Index: gcc/config/mips/t-linux64 =================================================================== --- gcc/config/mips/t-linux64 (révision 205437) +++ gcc/config/mips/t-linux64 (copie de travail) @@ -24,3 +24,22 @@ ../lib32$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \ ../lib$(call if_multiarch,:mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \ ../lib64$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT)) + +ifneq ($(with_abi),) +MIPS_ABI = $(with_abi) +endif +ifeq ($(MIPS_ABI),) +MIPS_ABI=$(if $(strip $(filter MIPS_ABI_DEFAULT=ABI_N32, $(tm_defines))),n32) +endif +ifeq ($(MIPS_ABI),) +MIPS_ABI = $(subst abi,,$(subst gnu,,$(lastword $(subst -, ,$(target))))) +endif +ifeq ($(MIPS_ABI),) +MIPS_ABI=32 +endif + +ifeq ($(MIPS_ABI),32) +MULTIARCH_DIRNAME = $(call if_multiarch,mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) +else +MULTIARCH_DIRNAME = $(call if_multiarch,mips64$(MIPS_EL)-linux-gnuabi$(MIPS_ABI)$(MIPS_SOFT)) +endif