Error before make command (Arch Linux x86_64)

[sthanduther]

Before ./configure command, everything ok. But, before make command, i have this error:

/usr/bin/ld: bfgminer-lowl-spi.o:/media/lera/b1a4b0ee-bd95-4c39-a19c-5cb0e0ee5f4b/bfgminer/bfgminer-5.5.0/util.h:220: multiple definition of `cgsleep_us_r'; bfgminer-miner.o:/media/lera/b1a4b0ee-bd95-4c39-a19c-5cb0e0ee5f4b/bfgminer/bfgminer-5.5.0/./util.h:220: first defined here collect2: error: ld returned 1 exit status make[2]: [Makefile:1257: bfgminer] Error 1 make[2]: Leaving directory '/run/media/lera/b1a4b0ee-bd95-4c39-a19c-5cb0e0ee5f4b/bfgminer/bfgminer-5.5.0' make[1]: [Makefile:2755: all-recursive] Error 1 make[1]: Leaving directory '/run/media/lera/b1a4b0ee-bd95-4c39-a19c-5cb0e0ee5f4b/bfgminer/bfgminer-5.5.0' make: *** [Makefile:1126: all] Error 2

[sthanduther]

Forget. Problem solved. But, i have a old problem in mining. With or without device (CPU/GPU etc), before many minutes, the BFGMiner crash with "core dumped" message.

[lubosz]

Instead of writing about another issue you have you could have said how you solved the problem... I am seeing this too on arch.

[lubosz]

This is how i solved it:

diff --git a/util.h b/util.h
index 97321215..9f59b8ba 100644
--- a/util.h
+++ b/util.h
@@ -217,7 +217,7 @@ void cgsleep_us(int64_t us);
 #define cgtimer_time(ts_start) timer_set_now(ts_start)
 #define cgsleep_prepare_r(ts_start) cgtimer_time(ts_start)
 void cgsleep_ms_r(cgtimer_t *ts_start, int ms);
-void (*cgsleep_us_r)(cgtimer_t *ts_start, int64_t us);
+extern void (*cgsleep_us_r)(cgtimer_t *ts_start, int64_t us);

 static inline
 int cgtimer_to_ms(cgtimer_t *cgt)

I'm using a fork for futurebit moonlander, i guess upstream probably fixed this.

[kdiogenes]

@lubosz, after making the modification you hinted I'm still getting the following error:

make[3]: Leaving directory '/home/kadu/Downloads/bfgminer-5.5.0/libblkmaker'
  CCLD     bfgminer
/usr/bin/ld: bfgminer-sha256_sse4_amd64.o:/home/kadu/Downloads/bfgminer-5.5.0/sha256_sse4_amd64.c:51: multiple definition of `g_4sha256_k'; bfgminer-sha256_sse2_amd64.o:/home/kadu/Downloads/bfgminer-5.5.0/sha256_sse2_amd64.c:51: first defined here
/usr/bin/ld: x86_64/libx8664.a(sha256_xmm_amd64.o): warning: relocation against `sha256_init_sse2' in read-only section `.text'
/usr/bin/ld: warning: creating DT_TEXTREL in a PIE
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:1257: bfgminer] Error 1
make[2]: Leaving directory '/home/kadu/Downloads/bfgminer-5.5.0'
make[1]: *** [Makefile:2755: all-recursive] Error 1
make[1]: Leaving directory '/home/kadu/Downloads/bfgminer-5.5.0'
make: *** [Makefile:1126: all] Error 2

Do you have any idea?

[kdiogenes]

I removed the yasm package from my linux and run ./configure --enable-cpumining and make and it's worked.

[kdiogenes]

I just adopted the bfgminer AUR package and made it works with CPU and GPU support: https://aur.archlinux.org/packages/bfgminer

The problem with the multiple definition errors is a change on GCC (I guess that was in version 10) defaulting to -fno-common instead of -fcommon. When running make for this project you can use make CFLAGS="-fcommon" to avoid the multiple definition errors.

The details about the -fcommon option can be found here https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options