int tracer_copy_out( struct tracer *t, const void *data, const void *uaddr, int length )
{
int result;
static int has_fast_write=1;
UPTRINT_T iuaddr = (UPTRINT_T)uaddr;
if(length==0) return 0;
#if !defined(CCTOOLS_CPU_I386)
if(!tracer_is_64bit(t)) iuaddr &= 0xffffffff;
#endif
if(has_fast_write) {
result = full_pwrite64(t->memory_file,data,length,iuaddr);
if( result!=length ) {
has_fast_write = 0;
debug(D_SYSCALL,"writing to /proc/X/mem failed, falling back to slow ptrace write");
} else {
return result;
}
}
result = tracer_copy_out_slow(t,data,(void*)iuaddr,length);
return result;
}
static INT64_T chirp_fs_local_pwrite(int fd, const void *buffer, INT64_T length, INT64_T offset)
{
INT64_T result;
result = full_pwrite64(fd, buffer, length, offset);
if(result < 0 && errno == ESPIPE) {
/* if this is a pipe, then just write without the offset. */
result = full_write(fd, buffer, length);
}
return result;
}
static INT64_T chirp_fs_local_pwrite(int fd, const void *buffer, INT64_T length, INT64_T offset)
{
PREAMBLE("pwrite(%d, %p, %zu, %" PRId64 ")", fd, buffer, (size_t)length, offset);
SETUP_FILE
rc = full_pwrite64(lfd, buffer, length, offset);
if(rc < 0 && errno == ESPIPE) {
/* if this is a pipe, then just write without the offset. */
rc = full_write(lfd, buffer, length);
}
PROLOGUE
}
