https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82005
Bug ID: 82005
Summary: The combination of -g and -flto does not work on
darwin
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: dominiq at lps dot ens.fr
CC: iains at gcc dot gnu.org, rguenth at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-apple-darwin16
Target: x86_64-apple-darwin16
Build: x86_64-apple-darwin16
Created attachment 42059
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42059&action=edit
cco5WIPL.ltrans0.s generated with -g -flto
The combination of -g and -flto does not work on darwin.
Consider the following test
#include <stdio.h>
#include <math.h>
int main ()
{
float result;
result = sin(3.14159);
printf("result = \t%.13e\n", result);
}
compiling it with -g -flto gives
cco5WIPL.ltrans0.s:155:8: error: unsupported relocation with subtraction
expression, symbol '_sinus.c.f4d7e603' can not be undefined in a subtraction
expression
.quad _sinus.c.f4d7e603-Lsection__debug_info+11
^
cco5WIPL.ltrans0.s:157:8: error: unsupported relocation with subtraction
expression, symbol '_sinus.c.f4d7e603' can not be undefined in a subtraction
expression
.quad _sinus.c.f4d7e603-Lsection__debug_info+1227
^
cco5WIPL.ltrans0.s:163:8: error: unsupported relocation with subtraction
expression, symbol '_sinus.c.f4d7e603' can not be undefined in a subtraction
expression
.quad _sinus.c.f4d7e603-Lsection__debug_info+1240
^
lto-wrapper: fatal error: /opt/gcc/gcc8w/bin/gcc returned 1 exit status
compilation terminated.
collect2: fatal error: lto-wrapper returned 1 exit status
compilation terminated.
