mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-18 14:53:32 +08:00
60f7927512
LTO may optimize out a plugin symbol, which is also referenced by a non-IR file. When that happens, we should mark the plugin symbol undefined. It isn't the problem since LTO already determined the symbols in the non-IR file aren't used. bfd/ PR ld/12365 PR ld/14272 * elflink.c (_bfd_elf_fix_symbol_flags): Mark the plugin symbol undefined if it is referenced from a non-IR file. ld/testsuite/ PR ld/12365 * ld-plugin/pr12365a.c: New file. * ld-plugin/pr12365b.c: Likewise. * ld-plugin/pr12365c.c: Likewise. * ld-plugin/lto.exp (lto_link_tests): Prepare for the PR ld/12365 test. Run the PR ld/12365 test.
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
#define ASMNAME(cname) ASMNAME2 (__USER_LABEL_PREFIX__, cname)
|
|
#define ASMNAME2(prefix, cname) STRING (prefix) cname
|
|
#define STRING(x) #x
|
|
|
|
typedef __SIZE_TYPE__ size_t;
|
|
extern void abort (void);
|
|
extern void *memcpy (void *, const void *, size_t)
|
|
__asm (ASMNAME ("my_memcpy"));
|
|
extern void bcopy (const void *, void *, size_t)
|
|
__asm (ASMNAME ("my_bcopy"));
|
|
extern void *memset (void *, int, size_t)
|
|
__asm (ASMNAME ("my_memset"));
|
|
extern void bzero (void *, size_t)
|
|
__asm (ASMNAME ("my_bzero"));
|
|
extern int memcmp (const void *, const void *, size_t);
|
|
|
|
struct A { char c[32]; } a = { "foobar" };
|
|
char x[64] = "foobar", y[64];
|
|
int i = 39, j = 6, k = 4;
|
|
|
|
extern int inside_main;
|
|
|
|
void
|
|
main_test (void)
|
|
{
|
|
struct A b = a;
|
|
struct A c = { { 'x' } };
|
|
|
|
inside_main = 1;
|
|
|
|
if (memcmp (b.c, x, 32) || c.c[0] != 'x' || memcmp (c.c + 1, x + 32, 31))
|
|
abort ();
|
|
if (__builtin_memcpy (y, x, i) != y || memcmp (x, y, 64))
|
|
abort ();
|
|
if (memcpy (y + 6, x, j) != y + 6
|
|
|| memcmp (x, y, 6) || memcmp (x, y + 6, 58))
|
|
abort ();
|
|
if (__builtin_memset (y + 2, 'X', k) != y + 2
|
|
|| memcmp (y, "foXXXXfoobar", 13))
|
|
abort ();
|
|
bcopy (y + 1, y + 2, 6);
|
|
if (memcmp (y, "fooXXXXfobar", 13))
|
|
abort ();
|
|
__builtin_bzero (y + 4, 2);
|
|
if (memcmp (y, "fooX\0\0Xfobar", 13))
|
|
abort ();
|
|
}
|