libroot/glibc: Fix vtable incompatibilities on GCC 2.
Fixes #19570.
Diff
src/system/libroot/posix/glibc/libio/libioP.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
@@ -116,6 +116,20 @@
# define _IO_vtable_offset(THIS) 0
#endif
#define _IO_WIDE_JUMPS_FUNC(THIS) _IO_WIDE_JUMPS(THIS)
#if __GNUC__ == 2
# define JUMP_FIELD(TYPE, NAME) struct { short delta1, delta2; TYPE pfn; } NAME
# define JUMP0(FUNC, THIS) _IO_JUMPS_FUNC(THIS)->FUNC.pfn (THIS)
# define JUMP1(FUNC, THIS, X1) _IO_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1)
# define JUMP2(FUNC, THIS, X1, X2) _IO_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1, X2)
# define JUMP3(FUNC, THIS, X1,X2,X3) _IO_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1,X2,X3)
# define JUMP_INIT(NAME, VALUE) {0, 0, VALUE}
# define JUMP_INIT_DUMMY JUMP_INIT(dummy, 0)
# define WJUMP0(FUNC, THIS) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC.pfn (THIS)
# define WJUMP1(FUNC, THIS, X1) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1)
# define WJUMP2(FUNC, THIS, X1, X2) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1, X2)
# define WJUMP3(FUNC, THIS, X1,X2,X3) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1,X2,X3)
#else
#define JUMP_FIELD(TYPE, NAME) TYPE NAME
#define JUMP0(FUNC, THIS) (_IO_JUMPS_FUNC(THIS)->FUNC) (THIS)
#define JUMP1(FUNC, THIS, X1) (_IO_JUMPS_FUNC(THIS)->FUNC) (THIS, X1)
@@ -128,6 +142,7 @@
#define WJUMP1(FUNC, THIS, X1) (_IO_WIDE_JUMPS_FUNC(THIS)->FUNC) (THIS, X1)
#define WJUMP2(FUNC, THIS, X1, X2) (_IO_WIDE_JUMPS_FUNC(THIS)->FUNC) (THIS, X1, X2)
#define WJUMP3(FUNC, THIS, X1,X2,X3) (_IO_WIDE_JUMPS_FUNC(THIS)->FUNC) (THIS, X1,X2, X3)
#endif
/* The 'finish' function does any final cleaning up of an _IO_FILE object.
It does not delete (free) it, but does everything else to finalize it.
@@ -290,7 +305,9 @@
struct _IO_jump_t
{
JUMP_FIELD(size_t, __dummy);
#if __GNUC__ != 2
JUMP_FIELD(size_t, __dummy2);
#endif
JUMP_FIELD(_IO_finish_t, __finish);
JUMP_FIELD(_IO_overflow_t, __overflow);
JUMP_FIELD(_IO_underflow_t, __underflow);