This problem depends on generated pic code for sh.
For reproducing, needs two files a shared library(musician.so) and a executable
file(main). I will attach these files.
musician.so is shared library compiled with -fPIC option.
musician.so is linked dynamically if main is excuted as follows.
g++ -g -o musician.so musician.cc -shared -fPIC
g++ -g -o main main.cc musician.so
env LD_LIBRARY_PATH=.:$LD_LIBRARY_PATH main
actual result: main issues a following error.
Segmentation fault
expected result: main prints a following message.
playing=1
The following code generated by g++ is wrong for the pic code because r12 is
not set for this shared library.
.weak _ZThn4_N6typist5printEv
.type _ZThn4_N6typist5printEv, @function
_ZThn4_N6typist5printEv:
.LFB46:
mov.l .L153,r3
add r12,r3
jmp @r3
add #-4,r4
.L154:
.align 2
.L153:
.long [EMAIL PROTECTED]
--
Summary: [SH] generated pic code is not right
Product: gcc
Version: 3.4.6
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: saito at densan dot co dot jp
GCC build triplet: sh4-linux
GCC host triplet: sh4-linux
GCC target triplet: sh4-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27621
