I have linux installed in armv6 android phone in chrooted environment.

I have installed musl-libc from source for building static binary for android. Here are the commands, I ran for building & installing in debian

./configure --disable-shared 
make install

Here is config.mak ::

# This version of config.mak was generated by:
# ./configure --disable-shared
# Any changes made here will be lost if configure is re-run
ARCH = arm
prefix = /usr/local/musl
exec_prefix = $(prefix)
bindir = $(exec_prefix)/bin
libdir = $(prefix)/lib
includedir = $(prefix)/include
syslibdir = /lib
CC = gcc
CFLAGS = -Os -pipe -fomit-frame-pointer -fno-unwind-tables -fno-asynchronous-unwind-tables -Wa,--noexecstack -Werror=implicit-function-declaration -$
CFLAGS_C99FSE = -std=c99 -nostdinc -ffreestanding -fexcess-precision=standard -frounding-math
CFLAGS_MEMOPS = -fno-tree-loop-distribute-patterns
LDFLAGS = -Wl,--hash-style=both
LIBCC = -lgcc -lgcc_eh
OPTIMIZE_GLOBS = internal/*.c malloc/*.c string/*.c

It got built & installed fine without any errors.

But when I check for installation .

cat > hello.c <<EOF
#include <stdio.h>
int main()
{   printf("hello, world!\n");
return 0;
/usr/local/musl/bin/musl-gcc hello.c

It shows this error ::

/usr/lib/gcc/arm-linux-gnueabi/4.6/libgcc.a(_dvmd_lnx.o): In function     `__aeabi_ldiv0':
(.text+0x8): undefined reference to `raise'
collect2: ld returned 1 exit status

What's wrong with musl installation ?


Got following reply from musl support team.

If you add -v, you should see
.. --start-group -lgcc -lgcc_eh -lc --end-group ..

which means all dependencies between libgcc and libc are resolved. I think gcc does not do the --start-group/--end-group without  explicit -static, so only musl-gcc -static hello.c would work.

raise is in libc, referenced from libgcc
__aebi_ldiv0 is in libgcc, referenced from libc with static linking, undefined symbol resolution happens in the order the libraries are listed on the command line (so you need -lgcc -lc -lgcc -lc or the --*-group linker flags to resolve circular deps)

So I had to use -static flag while compiling.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.