Fix for Bug 3671 - QEMU GDB stub listens on IPv6-only port on Windows 7
The connection string used by the GDB stub does not specify which
version of the Internet Protocol should be used by the port on
which it listens. On host platforms with IPv6 support, such as
Windows 7, this means that the stub listens on an IPv6-only port.
Since the GDB client uses IPv4, this means that the client cannot
connect to QEMU.
#ifndef QEMU_CACHE_UTILS_H
#define QEMU_CACHE_UTILS_H
#ifdef __powerpc__
struct qemu_cache_conf {
unsigned long dcache_bsize;
unsigned long icache_bsize;
};
extern struct qemu_cache_conf qemu_cache_conf;
extern void qemu_cache_utils_init(char **envp);
/* mildly adjusted code from tcg-dyngen.c */
static inline void flush_icache_range(unsigned long start, unsigned long stop)
{
unsigned long p, start1, stop1;
unsigned long dsize = qemu_cache_conf.dcache_bsize;
unsigned long isize = qemu_cache_conf.icache_bsize;
start1 = start & ~(dsize - 1);
stop1 = (stop + dsize - 1) & ~(dsize - 1);
for (p = start1; p < stop1; p += dsize) {
asm volatile ("dcbst 0,%0" : : "r"(p) : "memory");
}
asm volatile ("sync" : : : "memory");
start &= start & ~(isize - 1);
stop1 = (stop + isize - 1) & ~(isize - 1);
for (p = start1; p < stop1; p += isize) {
asm volatile ("icbi 0,%0" : : "r"(p) : "memory");
}
asm volatile ("sync" : : : "memory");
asm volatile ("isync" : : : "memory");
}
#else
#define qemu_cache_utils_init(envp) do { (void) (envp); } while (0)
#endif
#endif /* QEMU_CACHE_UTILS_H */