Crosscompiling for ARMv7-a gives "'PATH_MAX' was not declared in this scope" in asan_linux.cc

[U.Mutlu]

Solved by using gcc configure option "--disable-libsanitizer"
(btw, option "--without-libsanitizer" has no effect)



U.Mutlu wrote on 03/27/2019 09:55 PM:
> Hi,
>
> while building a gcc crosscompiler for ARMv7-a (32bit
> TARGET="arm-linux-gnueabihf")
> on a x86_64 linux host, I get the following error that says that
> PATH_MAX isn't defined while compiling the file
>    gcc-source/libsanitizer/asan/asan_linux.cc, see below.
>
> In that file <limits.h> is included, but PATH_MAX is defined in
> <linux/limits.h>.
>
> This error happens in the very last step of the build process
> ( cd gcc-build ; make -j5 all ; make install ; cd .. )
> I used glibc (not newlib).
> All sources are the latest versions, ie. from git etc.
>
> How to fix this bug?
> Is the processing of this AddressSanitizer file (asan_linux.cc) optional?
>
> Thx
>
>
> ########
> ...
> libtool: compile:  /data/sw/src/cross/my_cross_build/gcc-build/./gcc/xgcc
> -shared-libgcc -B/data/sw/src/cross/my_cross_build/gcc-build/./gcc -nostdinc++
> -L/data/sw/src/cross/my_cross_build/gcc-build/arm-linu
> x-gnueabihf/libstdc++-v3/src
> -L/data/sw/src/cross/my_cross_build/gcc-build/arm-linux-gnueabihf/libstdc++-v3/src/.libs
> -L/data/sw/src/cross/my_cross_build/gcc-build/arm-linux-gnueabihf/libstdc++-v3/libsupc++/
>
> .libs -B/sw/src/cross/INSTALL_DIR/arm-linux-gnueabihf/bin/
> -B/sw/src/cross/INSTALL_DIR/arm-linux-gnueabihf/lib/ -isystem
> /sw/src/cross/INSTALL_DIR/arm-linux-gnueabihf/include -isystem
> /sw/src/cross/INSTALL_D
> IR/arm-linux-gnueabihf/sys-include -D_GNU_SOURCE -D_DEBUG
> -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
> -DASAN_HAS_EXCEPTIONS=1 -DASAN_NEEDS_SEGV=1 -DCAN_SANITIZE_UB=0 -I. -I../../../
> ../gcc-source/libsanitizer/asan -I.. -I
> ../../../../gcc-source/libsanitizer/include -I
> ../../../../gcc-source/libsanitizer -Wall -W -Wno-unused-parameter
> -Wwrite-strings -pedantic -Wno-long-long -fPIC -fno-b
> uiltin -fno-exceptions -fno-rtti -fomit-frame-pointer -funwind-tables
> -fvisibility=hidden -Wno-variadic-macros -fno-ipa-icf
> -I../../libstdc++-v3/include -I../../libstdc++-v3/include/arm-linux-gnueabihf
> -I../
> ../../../gcc-source/libsanitizer/../libstdc++-v3/libsupc++ -std=gnu++11 -g -O2
> -D_GNU_SOURCE -MT asan_mac.lo -MD -MP -MF .deps/asan_mac.Tpo -c
> ../../../../gcc-source/libsanitizer/asan/asan_mac.cc -o asan_mac
> .o >/dev/null 2>&1
> ../../../../gcc-source/libsanitizer/asan/asan_linux.cc: In function 'void
> __asan::AsanCheckIncompatibleRT()':
> ../../../../gcc-source/libsanitizer/asan/asan_linux.cc:216:21: error:
> 'PATH_MAX' was not declared in this scope
>    216 |       char filename[PATH_MAX];
>        |                     ^~~~~~~~
> ../../../../gcc-source/libsanitizer/asan/asan_linux.cc:217:35: error:
> 'filename' was not declared in this scope; did you mean 'fileno'?
>    217 |       MemoryMappedSegment segment(filename, sizeof(filename));
>        |                                   ^~~~~~~~
>        |                                   fileno
> Makefile:599: recipe for target 'asan_linux.lo' failed
> make[4]: *** [asan_linux.lo] Error 1
>
>
> ######
> zz@cs5:/data/sw/src/cross/my_cross_build$ find
> ../INSTALL_DIR/arm-linux-gnueabihf/ -iname "limit*" -ls
> 12900673    4 -rw-r--r--   1 zz   zz        937 Mar 27 20:08
> ../INSTALL_DIR/arm-linux-gnueabihf/include/linux/limits.h
> 12241315    8 -rw-r--r--   1 zz   zz       5412 Mar 27 20:35
> ../INSTALL_DIR/arm-linux-gnueabihf/include/limits.h
>
> zz@cs5:/data/sw/src/cross/my_cross_build$ grep "PATH_MAX"
> ../INSTALL_DIR/arm-linux-gnueabihf/include/limits.h
>
> zz@cs5:/data/sw/src/cross/my_cross_build$ grep "PATH_MAX"
> ../INSTALL_DIR/arm-linux-gnueabihf/include/linux/limits.h
> #define PATH_MAX        4096    /* # chars in a path name including nul */
>
> #######
>