https://sourceware.org/bugzilla/show_bug.cgi?id=20550
Bug ID: 20550
Summary: Linking a MPX instrumented shared object fails with
-pie
Product: binutils
Version: 2.27
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: peter at lekensteyn dot nl
Target Milestone: ---
An attempt to link a shared object containing an array with another object that
uses this array fails when using -pie and Intel MPX.
Software versions:
Distribution: Arch Linux
GCC 6.2.1-1 (also reproduced with 6.1.1-5)
binutils 2.27-1
Reproducer:
cc -mmpx -fcheck-pointer-bounds -fPIC -c -o main.o main.c
cc -mmpx -fcheck-pointer-bounds -fPIC -c -o other.o other.c
cc -mmpx -fcheck-pointer-bounds -fPIC -o other.so other.o -shared
cc -mmpx -fcheck-pointer-bounds -fPIC -pie -o main main.o other.so
/usr/bin/ld: main.o(.text+0x5e): reloc against `strings': error 4
/usr/bin/ld: final link failed: Nonrepresentable section on output
collect2: error: ld returned 1 exit status
make: *** [Makefile:5: main] Error 1
==> main.c <==
#include <stdio.h>
extern const char *strings[];
int main() {
printf("%s\n", strings[0]);
return 0;
}
==> other.c <==
const char *strings[] = { "test" };
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