http://sourceware.org/bugzilla/show_bug.cgi?id=15153
Bug #: 15153
Summary: gold fails to detect undefined symbol
Product: binutils
Version: 2.24 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: gold
AssignedTo: i...@airs.com
ReportedBy: hjl.to...@gmail.com
CC: ccout...@google.com
Classification: Unclassified
gold fails to detect undefined symbol:
[hjl@gnu-6 xxx]$ cat foo.c
extern int xxx __attribute__((weak));
extern void bar ();
int
main ()
{
bar ();
return xxx;
}
[hjl@gnu-6 xxx]$ cat yyy.c
extern int xxx;
int
bar (void)
{
return xxx;
}
[hjl@gnu-6 xxx]$ make
gcc -Wl,--no-copy-dt-needed-entries -c -o foo.o foo.c
gcc -Wl,--no-copy-dt-needed-entries -shared -fPIC -o libyyy.so yyy.c
gcc -Wl,--no-copy-dt-needed-entries -fuse-ld=gold -B./
-Wl,--no-allow-shlib-undefined -o y foo.o libyyy.so -Wl,-rpath,.
./y
./y: symbol lookup error: ./libyyy.so: undefined symbol: xxx
make: *** [all] Error 127
[hjl@gnu-6 xxx]$
ld detects the error:
[hjl@gnu-6 xxx]$ make x
gcc -Wl,--no-copy-dt-needed-entries -B./ -Wl,--no-allow-shlib-undefined -o x
foo.o libyyy.so -Wl,-rpath,.
foo.o: In function `main':
foo.c:(.text+0x10): undefined reference to `xxx'
collect2: error: ld returned 1 exit status
make: *** [x] Error 1
[hjl@gnu-6 xxx]$
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