patacongo commented on issue #1672:
URL:
https://github.com/apache/incubator-nuttx/issues/1672#issuecomment-683454953
> $ dir `arm-none-eabi-gcc --print-file-name=libgcc.a`
> dir: cannot access 'c:/program': No such file or directory
> dir: cannot access 'files': No such file or directory
> dir: cannot access '(x86)/gnu': No such file or directory
> dir: cannot access 'arm': No such file or directory
> dir: cannot access 'embedded/9': No such file or directory
> dir: cannot access
'2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/libgcc.a'$'\r': No such file
or directory
> ...
Just as a clarification. The above uses the command 'dir' which is not the
same as the make 'dir' command. So lets do things right:
diff --git a/arch/arm/src/armv7-m/Toolchain.defs
b/arch/arm/src/armv7-m/Toolchain.defs
index 74e071bb0f..4d3b80c42f 100644
--- a/arch/arm/src/armv7-m/Toolchain.defs
+++ b/arch/arm/src/armv7-m/Toolchain.defs
@@ -155,6 +155,9 @@ OBJDUMP = $(CROSSDEV)objdump
EXTRA_LIBS += -lgcc
EXTRA_LIBPATHS += -L "${dir ${shell $(CC) $(ARCHCPUFLAGS)
--print-libgcc-file-name}}"
+$(warning libgcc= ${shell $(CC) $(ARCHCPUFLAGS)
--print-libgcc-file-name})
+$(warning EXTRA_LIBPATHS=$(EXTRA_LIBPATHS))
+
ifneq ($(CONFIG_LIBM),y)
EXTRA_LIBS += -lm
EXTRA_LIBPATHS += -L "${dir ${shell $(CC) $(ARCHCPUFLAGS)
--print-file-name=libm.a}}"
Now we see:
make[1]: Entering directory
'/cygdrive/d/Spuda/Documents/projects/nuttx/master/nuttx_fork/arch/arm/src'
/cygdrive/d/Spuda/Documents/projects/nuttx/master/nuttx_fork/arch/arm/src/armv7-m/Toolchain.defs:158:
libgcc= c:/program files (x86)/gnu tools arm embedded/9
2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/thumb/v7e-m/nofp/libgcc.a
/cygdrive/d/Spuda/Documents/projects/nuttx/master/nuttx_fork/arch/arm/src/armv7-m/Toolchain.defs:159:
EXTRA_LIBPATHS=-L "c:/ ./ (x86)/ ./ ./ embedded/
2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/thumb/v7e-m/nofp/"
make[2]: Entering directory
'/cygdrive/d/Spuda/Documents/projects/nuttx/master/nuttx_fork/arch/arm/src/board'
/cygdrive/d/Spuda/Documents/projects/nuttx/master/nuttx_fork/arch/arm/src/armv7-m/Toolchain.defs:158:
libgcc= c:/program files (x86)/gnu tools arm embedded/9
2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/thumb/v7e-m/nofp/libgcc.a
/cygdrive/d/Spuda/Documents/projects/nuttx/master/nuttx_fork/arch/arm/src/armv7-m/Toolchain.defs:159:
EXTRA_LIBPATHS=-L "c:/ ./ (x86)/ ./ ./ embedded/
2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/thumb/v7e-m/nofp/"
/cygdrive/d/Spuda/Documents/projects/nuttx/master/nuttx_fork/arch/arm/src/armv7-m/Toolchain.defs:158:
libgcc= c:/program files (x86)/gnu tools arm embedded/9
2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/thumb/v7e-m/nofp/libgcc.a
/cygdrive/d/Spuda/Documents/projects/nuttx/master/nuttx_fork/arch/arm/src/armv7-m/Toolchain.defs:159:
EXTRA_LIBPATHS=-L "c:/ ./ (x86)/ ./ ./ embedded/
2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/thumb/v7e-m/nofp/" -L "c:/ ./
(x86)/ ./ ./ embedded/
2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m/nofp/"
-L "c:/ ./ (x86)/ ./ ./ embedded/
2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/thumb/v7e-m/nofp/"
make[2]: 'libboard.a' is up to date.
make[2]: Leaving directory
'/cygdrive/d/Spuda/Documents/projects/nuttx/master/nuttx_fork/arch/arm/src/board'
LD: nuttx
C:\Program Files (x86)\GNU Tools ARM Embedded\9
2019-q4-major\bin\arm-none-eabi-ld.exe: cannot find -lgcc
C:\Program Files (x86)\GNU Tools ARM Embedded\9
2019-q4-major\bin\arm-none-eabi-ld.exe: cannot find -lm
make[1]: *** [Makefile:172: nuttx.exe] Error 1
Proving that PR #1450 is the cause of the Cygwin build failure.
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