https://sourceware.org/bugzilla/show_bug.cgi?id=28348
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hjl.tools at gmail dot com
Summary|ld generates corrupted |ld generates corrupted
|binaries with clang |binaries with -lc
|-fsanitize=address -lc |
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
[hjl@gnu-gram-1 longjmp]$ cat x.c
#include <setjmp.h>
jmp_buf buf;
int
main ()
{
longjmp (buf,1);
return 0;
}
[hjl@gnu-gram-1 longjmp]$ cat y.c
#include <setjmp.h>
__attribute__ ((weak))
void
longjmp(jmp_buf env, int val)
{
}
[hjl@gnu-gram-1 longjmp]$ make
gcc -c -o x.o x.c
gcc -c -o y.o y.c
/usr/include/setjmp.h: In function ‘longjmp’:
y.c:7:1: warning: ‘noreturn’ function does return
7 | }
| ^
gcc -o x x.o y.o -lc -pthread
readelf --wide --dyn-syms x | grep longjmp
3: 0000000000401119 15 FUNC WEAK DEFAULT 12 longjmp@@<corrupt>
[hjl@gnu-gram-1 longjmp]$
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