5

Estoy tratando de compilar algo para Android, así que estoy usando una herramienta diferente. Hay una biblioteca que el enlazador se queja que no puede encontrar:linker reclama la biblioteca no encontrada, strace muestra que intenta acceder a una ruta válida a través de

arm-eabi-gcc: fatal error: -fuse-linker-plugin, but liblto_plugin.so not found 

La biblioteca sin duda existe en este camino:

$ ls -l /mnt/hgfs/Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/libexec/gcc/arm-eabi/4.6.x-google 
total 70053 
-rwxr-xr-x 1 501 dialout 47040814 Oct 3 14:29 cc1 
-rwxr-xr-x 1 501 dialout 50903764 Oct 3 14:29 cc1plus 
-rwxr-xr-x 1 501 dialout 423914 Oct 3 14:29 collect2 
drwxr-xr-x 1 501 dialout  204 Oct 3 14:29 install-tools 
-rwxr-xr-x 1 501 dialout  1090 Oct 3 14:29 libfunction_reordering_plugin.la 
lrwxr-xr-x 1 501 dialout  38 Oct 3 14:29 libfunction_reordering_plugin.so -> libfunction_reordering_plugin.so.0.0.0 
lrwxr-xr-x 1 501 dialout  38 Oct 3 14:29 libfunction_reordering_plugin.so.0 -> libfunction_reordering_plugin.so.0.0.0 
-rwxr-xr-x 1 501 dialout 89427 Oct 3 14:29 libfunction_reordering_plugin.so.0.0.0 
-rwxr-xr-x 1 501 dialout  994 Oct 3 14:29 liblto_plugin.la 
lrwxr-xr-x 1 501 dialout  22 Oct 3 14:29 liblto_plugin.so -> liblto_plugin.so.0.0.0 
lrwxr-xr-x 1 501 dialout  22 Oct 3 14:29 liblto_plugin.so.0 -> liblto_plugin.so.0.0.0 
-rwxr-xr-x 1 501 dialout 238575 Oct 3 14:29 liblto_plugin.so.0.0.0 
-rwxr-xr-x 1 501 dialout 44647203 Oct 3 14:29 lto1 
-rwxr-xr-x 1 501 dialout 114284 Oct 3 14:29 lto-wrapper 

Por lo tanto, en mi línea de compilación que incluía "-L/mnt/HGF /Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/libexec/gcc/arm-eabi/4.6.x-google "y luego especifique" -lliblto_plugin " ... pero sigo recibiendo este error.

Aquí es mi línea entera y error:

arm-eabi-gcc -o test \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/../android-ndk-r8b-linux/platforms/android-14/arch-arm/usr/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/../ported-deps/jni/libgcrypt/src \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/../ported-deps/jni/libgpg-error/src \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/system/core/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/hardware/libhardware/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/hardware/ril/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/dalvik/libnativehelper/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/frameworks/base/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/external/skia/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/out/target/product/generic/obj/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/bionic/libc/arch-arm/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/bionic/libc/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/bionic/libstdc++/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/bionic/libc/kernel/common \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/bionic/libc/kernel/arch-arm \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/bionic/libm/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/bionic/libm/include/arch/arm \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/bionic/libthread_db/include \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/bionic/libm/arm \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/bionic/libm \ 
-I/mnt/hgfs/Documents/thesis/android-wmon/core/os/out/target/product/generic/obj/SHARED_LIBRARIES/libm_intermediates \ 
-D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -DANDROID -DSK_RELEASE -DNDEBUG \ 
-include /mnt/hgfs/Documents/thesis/android-wmon/core/os/system/core/include/arch/linux-arm/AndroidConfig.h \ 
-UDEBUG -march=armv5te -mtune=xscale -msoft-float -mthumb-interwork \ 
-fpic -fno-exceptions -ffunction-sections -funwind-tables -fstack-protector -fmessage-length=0 \ 
test.c \ 
-Bdynamic -Wl,-T,/mnt/hgfs/Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/arm-eabi/lib/ldscripts/armelf.x \ 
-Wl,-dynamic-linker,/system/bin/linker -Wl,--gc-sections -Wl,-z,nocopyreloc \ 
-Wl,--no-undefined -Wl,-rpath-link=/mnt/hgfs/Documents/thesis/android-wmon/core/os/../android-ndk-r8b-linux/platforms/android-14/arch-arm/usr/lib \ 
-L/mnt/hgfs/Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/libexec/gcc/arm-eabi/4.6.x-google \ 
-L/mnt/hgfs/Documents/thesis/android-wmon/core/os/../android-ndk-r8b-linux/platforms/android-14/arch-arm/usr/lib \ 
-nostdlib /mnt/hgfs/Documents/thesis/android-wmon/core/os/../android-ndk-r8b-linux/platforms/android-14/arch-arm/usr/lib/crtend_android.o \ 
/mnt/hgfs/Documents/thesis/android-wmon/core/os/../android-ndk-r8b-linux/platforms/android-14/arch-arm/usr/lib/crtbegin_dynamic.o \ 
/mnt/hgfs/Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/lib/gcc/arm-eabi/4.6.x-google/libgcc.a \ 
-lc -lliblto_plugin -lm 
arm-eabi-gcc: fatal error: -fuse-linker-plugin, but liblto_plugin.so not found 

EDIT: Ejecución de strace junto con la compilación, veo los accesos a leer la biblioteca compartida que falte;

access("/mnt/hgfs/Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/../libexec/gcc/arm-eabi/4.6.x-google/liblto_plugin.so", R_OK) = -1 ENOENT (No such file or directory) 
access("/mnt/hgfs/Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/../libexec/gcc/liblto_plugin.so", R_OK) = -1 ENOENT (No such file or directory) 
access("/mnt/hgfs/Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/../lib/gcc/arm-eabi/4.6.x-google/../../../../arm-eabi/bin/arm-eabi/4.6.x-google/liblto_plugin.so", R_OK) = -1 ENOENT (No such file or directory) 
access("/mnt/hgfs/Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/../lib/gcc/arm-eabi/4.6.x-google/../../../../arm-eabi/bin/liblto_plugin.so", R_OK) = -1 ENOENT (No such file or directory) 

Pero curiosamente, la primera ruta que intenta realmente existe, pero es un enlace:

$ file /mnt/hgfs/Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/../libexec/gcc/arm-eabi/4.6.x-google/liblto_plugin.so 
/mnt/hgfs/Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/../libexec/gcc/arm-eabi/4.6.x-google/liblto_plugin.so: symbolic link to `liblto_plugin.so.0.0.0' 

Ese vínculo también es válido:

$ ls -l /mnt/hgfs/Documents/thesis/android-wmon/core/os/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/../libexec/gcc/arm-eabi/4.6.x-google/ 
total 70053 
-rwxr-xr-x 1 501 dialout 47040814 Oct 3 14:29 cc1 
-rwxr-xr-x 1 501 dialout 50903764 Oct 3 14:29 cc1plus 
-rwxr-xr-x 1 501 dialout 423914 Oct 3 14:29 collect2 
drwxr-xr-x 1 501 dialout  204 Oct 3 14:29 install-tools 
-rwxr-xr-x 1 501 dialout  1090 Oct 3 14:29 libfunction_reordering_plugin.la 
lrwxr-xr-x 1 501 dialout  38 Oct 3 14:29 libfunction_reordering_plugin.so -> libfunction_reordering_plugin.so.0.0.0 
lrwxr-xr-x 1 501 dialout  38 Oct 3 14:29 libfunction_reordering_plugin.so.0 -> libfunction_reordering_plugin.so.0.0.0 
-rwxr-xr-x 1 501 dialout 89427 Oct 3 14:29 libfunction_reordering_plugin.so.0.0.0 
-rwxr-xr-x 1 501 dialout  994 Oct 3 14:29 liblto_plugin.la 
lrwxr-xr-x 1 501 dialout  22 Oct 3 14:29 liblto_plugin.so -> liblto_plugin.so.0.0.0 
lrwxr-xr-x 1 501 dialout  22 Oct 3 14:29 liblto_plugin.so.0 -> liblto_plugin.so.0.0.0 
-rwxr-xr-x 1 501 dialout 238575 Oct 3 14:29 liblto_plugin.so.0.0.0 
-rwxr-xr-x 1 501 dialout 44647203 Oct 3 14:29 lto1 
-rwxr-xr-x 1 501 dialout 114284 Oct 3 14:29 lto-wrapper 

otra edición: Si voy al directorio que contiene la biblioteca compartida y eliminar el enlace de liblto_plugin.so a liblto_plugin.so.0.0.0 y luego "cp liblto_plugin.so.0.0.0 liblto_plugin.so", luego se vincula correctamente y mi programa se compila. ¿Por qué está roto cuando este archivo es un enlace? (Lo siento, usando "enlace" para referirse a dos cosas diferentes aquí).

Respuesta

1

Resulta que se trata de un error al utilizar un directorio compartido en HGFS con mi máquina virtual. Si saco el código de un directorio compartido y en el sistema de archivos nativo, no obtengo estos problemas de compilación.

Esto me fue insinuado en here

+0

Great find. Tuve el mismo problema con Android NDK en una carpeta compartida en el host utilizado desde una máquina virtual. –

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