add some fixes and inrastructure for arm nommu support

2 files changed, 161 insertions, 0 deletions

diff --git a/toolchain/gcc/Makefile b/toolchain/gcc/Makefile
index a3f9a03af..9881ff92e 100644
--- a/toolchain/gcc/Makefile
+++ b/toolchain/gcc/Makefile
@@ -284,10 +284,18 @@ endif
 		ln -sf libstdc++.so.6.0.$(LIBSTDCXXVER) libstdc++.so.6
 	# cleanup unneeded docs
 	rm -rf $(TOOLCHAIN_DIR)/usr/share
+ifeq ($(ADK_TARGET_ARCH_M68K),y)
 	# create gcc wrapper for uClinux/m68k
 	echo "#!/bin/sh" > $(TOOLCHAIN_DIR)/usr/bin/adk-uclinux-gcc
 	echo "exec ${GNU_TARGET_NAME}-gcc \"\$$@\" -specs $(ADK_TOPDIR)/toolchain/gcc/m68k-uclinux-gcc.specs" >> $(TOOLCHAIN_DIR)/usr/bin/adk-uclinux-gcc
 	chmod a+x $(TOOLCHAIN_DIR)/usr/bin/adk-uclinux-gcc
+endif
+ifeq ($(ADK_TARGET_ARCH_ARM),y)
+	# create gcc wrapper for uClinux/arm
+	echo "#!/bin/sh" > $(TOOLCHAIN_DIR)/usr/bin/adk-uclinux-gcc
+	echo "exec ${GNU_TARGET_NAME}-gcc \"\$$@\" -specs $(ADK_TOPDIR)/toolchain/gcc/arm-uclinux-gcc.specs" >> $(TOOLCHAIN_DIR)/usr/bin/adk-uclinux-gcc
+	chmod a+x $(TOOLCHAIN_DIR)/usr/bin/adk-uclinux-gcc
+endif
 	touch $@
 
 include ${ADK_TOPDIR}/mk/toolchain.mk
diff --git a/toolchain/gcc/arm-uclinux-gcc.specs b/toolchain/gcc/arm-uclinux-gcc.specs
new file mode 100644
index 000000000..92e807094
--- /dev/null
+++ b/toolchain/gcc/arm-uclinux-gcc.specs
@@ -0,0 +1,153 @@
+*asm:
+%{mbig-endian:-EB} %{mlittle-endian:-EL} %(asm_cpu_spec) %{mapcs-*:-mapcs-%*} %(subtarget_asm_float_spec) %{mthumb-interwork:-mthumb-interwork} %{mfloat-abi=*} %{mfpu=*} %(subtarget_extra_asm_spec)
+
+*asm_debug:
+%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}} %{fdebug-prefix-map=*:--debug-prefix-map %*}
+
+*asm_final:
+%{gsplit-dwarf: 
+       objcopy --extract-dwo 	 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O} 	 %{c:%{o*:%:replace-extension(%{o*:%*} .dwo)}%{!o*:%b.dwo}}%{!c:%b.dwo} 
+       objcopy --strip-dwo 	 %{c:%{o*:%*}%{!o*:%b%O}}%{!c:%U%O}     }
+
+*asm_options:
+%{-target-help:%:print-asm-header()} %{v} %{w:-W} %{I*} %a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}
+
+*invoke_as:
+%{!fwpa:   %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}   %{!S:-o %|.s |
+ as %(asm_options) %m.s %A }  }
+
+*cpp:
+%(subtarget_cpp_spec)					%{mfloat-abi=soft:%{mfloat-abi=hard:						%e-mfloat-abi=soft and -mfloat-abi=hard may not be used together}} %{mbig-endian:%{mlittle-endian:							%e-mbig-endian and -mlittle-endian may not be used together}}
+
+*cpp_options:
+%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w} %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*} %{undef} %{save-temps*:-fpch-preprocess}
+
+*cpp_debug_options:
+%{d*}
+
+*cpp_unique_options:
+%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I %{MD:-MD %{!o:%b.d}%{o*:%.d%*}} %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}} %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}} %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD} %{!iplugindir*:%{fplugin*:%:find-plugindir()}} %{H} %C %{D*&U*&A*} %{i*} %Z %i %{fmudflap:-D_MUDFLAP -include mf-runtime.h} %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h} %{E|M|MM:%W{o*}}
+
+*trad_capable_cpp:
+cc1 -E %{traditional|traditional-cpp:-traditional-cpp}
+
+*cc1:
+%{profile:-p}
+
+*cc1_options:
+%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}} %{!iplugindir*:%{fplugin*:%:find-plugindir()}} %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*} %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)}  %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}}  %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs} %{v:-version} %{pg:-p} %{p} %{f*} %{undef} %{Qn:-fno-ident} %{Qy:} %{-help:--help} %{-target-help:--target-help} %{-version:--version} %{-help=*:--help=%*} %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}} %{fsyntax-only:-o %j} %{-param*} %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants} %{coverage:-fprofile-arcs -ftest-coverage}
+
+*cc1plus:
+
+
+*link_gcc_c_sequence:
+%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}
+
+*link_ssp:
+%{fstack-protector:}
+
+*endfile:
+crtend%O%s crtn%O%s
+
+*link:
+%{mbig-endian:-EB} %{mlittle-endian:-EL} %{static:-Bstatic} %{shared:-shared} %{symbolic:-Bsymbolic} -X -m armelf_linux_eabi -elf2flt --pic-veneer --target2=abs %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx} %{mbig-endian:%{march=armv7-a|mcpu=cortex-a5           |mcpu=cortex-a7                                         |mcpu=cortex-a8|mcpu=cortex-a9|mcpu=cortex-a15          |mcpu=marvell-pj4					   |mcpu=generic-armv7-a                                   |march=armv7-m|mcpu=cortex-m3                           |march=armv7e-m|mcpu=cortex-m4                          |march=armv6-m|mcpu=cortex-m0                           |march=armv8-a					   :%{!r:--be8}}}
+
+*lib:
+%{pthread:-lpthread}    %{shared:-lc}    %{!shared:%{profile:-lc_p}%{!profile:-lc}}
+
+*mfwrap:
+ %{static: %{fmudflap|fmudflapth:  --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc --wrap=mmap --wrap=mmap64 --wrap=munmap --wrap=alloca} %{fmudflapth: --wrap=pthread_create}} %{fmudflap|fmudflapth: --wrap=main}
+
+*mflib:
+%{fmudflap|fmudflapth: -export-dynamic}
+
+*link_gomp:
+
+
+*libgcc:
+-lgcc
+
+*startfile:
+crt1%O%s crti%O%s crtbegin%O%s
+
+*cross_compile:
+1
+
+*version:
+4.8.4
+
+*multilib:
+. ;
+
+*multilib_defaults:
+marm mlittle-endian mfloat-abi=soft mno-thumb-interwork fno-leading-underscore
+
+*multilib_extra:
+
+
+*multilib_matches:
+
+
+*multilib_exclusions:
+
+
+*multilib_options:
+
+
+*multilib_reuse:
+
+
+*linker:
+collect2
+
+*linker_plugin_file:
+
+
+*lto_wrapper:
+
+
+*lto_gcc:
+
+
+*link_libgcc:
+%D
+
+*md_exec_prefix:
+
+
+*md_startfile_prefix:
+
+
+*md_startfile_prefix_1:
+
+
+*startfile_prefix_spec:
+
+
+*sysroot_spec:
+--sysroot=%R
+
+*sysroot_suffix_spec:
+
+
+*sysroot_hdrs_suffix_spec:
+
+
+*self_spec:
+
+
+*subtarget_cpp_spec:
+%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}
+
+*asm_cpu_spec:
+ %{mcpu=generic-*:-march=%*;   :%{mcpu=*:-mcpu=%*} %{march=*:-march=%*}}
+
+*subtarget_extra_asm_spec:
+%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu;:-meabi=5} %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}
+
+*subtarget_asm_float_spec:
+%{mapcs-float:-mfloat}
+
+*link_command:
+%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:    %(linker) %{fuse-linker-plugin:    %e-fuse-linker-plugin is not supported in this configuration}%{flto|flto=*:%<fcompare-debug*}     %{flto} %{flto=*} %l %{pie:-pie} %{fuse-ld=*:-fuse-ld=%*}    %X %{o*} %{e*} %{N} %{n} %{r}    %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}    %{static:} %{L*} %(mfwrap) %(link_libgcc) %{!nostdlib:%{!nodefaultlibs:%{fsanitize=address:}     %{fsanitize=thread:}}} %o    %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}    %{fgnu-tm:%:include(libitm.spec)%(link_itm)}    %(mflib)  %{fsplit-stack: --wrap=pthread_create}    %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} %{!nostdlib:%{!nodefaultlibs:%{fsanitize=address:%{static-libasan:-Bstatic} -lasan %{static-libasan:-Bdynamic}    %{static:%ecannot specify -static with -fsanitize=address}    %{fsanitize=thread:%e-fsanitize=address is incompatible with -fsanitize=thread}}    %{fsanitize=thread:%{static-libtsan:-Bstatic} -ltsan %{static-libtsan:-Bdynamic}    %{!pie:%{!shared:%e-fsanitize=thread linking must be done with -pie or -shared}}}}}     %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}    %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}
+