[erlang-questions] erlang 20.0 under elbrus: compilation problems

Max Lapshin <>
Fri Aug 4 08:06:26 CEST 2017


Hi.

trying to build erlang 20 under elbrus computer  (arch e2k), it goes with
compiler lcc

trying to configure with:

./configure --prefix=/opt/flussonic --enable-smp-support
--enable-kernel-poll --enable-hipe --without-java --enable-dirty-schedulers

erts/configure fails, in erts/config.log I see:




| #define SIZEOF_TIME_T 8

| /* end confdefs.h.  */

|

| /* pr36339.c */

| extern void abort (void);

|

| typedef unsigned long my_uintptr_t;

|

| int check_a(my_uintptr_t tagged_ptr);

|

| int __attribute__((noinline)) try_a(my_uintptr_t x)

| {

|   my_uintptr_t heap[2];

|   my_uintptr_t *hp = heap;

|

|   hp[0] = x;

|   hp[1] = 0;

|   return check_a((my_uintptr_t)(void*)((char*)hp + 1));

| }

|

| int __attribute__((noinline)) check_a(my_uintptr_t tagged_ptr)

| {

|   my_uintptr_t *hp = (my_uintptr_t*)(void*)((char*)tagged_ptr - 1);

|

|   if (hp[0] == 42 && hp[1] == 0)

|     return 0;

|   return -1;

| }

|

| int main(void)

| {

|   if (try_a(42) < 0)

|     abort ();

|   return 0;

| }

|

configure:34880: result: yes

configure:34883: error: This gcc miscompiles the Erlang runtime system;
please use a different version


I have commented this place in configure and after some other patches it
has compiled.


Is it a fatal error?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://erlang.org/pipermail/erlang-questions/attachments/20170804/0a8ca4c6/attachment.html>


More information about the erlang-questions mailing list