Unwinding is only supported on Linux
Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
diff --git a/libdwfl/linux-pid-attach.c b/libdwfl/linux-pid-attach.c
index 6be578b..8aee721 100644
--- a/libdwfl/linux-pid-attach.c
+++ b/libdwfl/linux-pid-attach.c
@@ -37,6 +37,7 @@
# define MAX(a, b) ((a) > (b) ? (a) : (b))
#endif
+#ifdef __linux__
static bool
linux_proc_pid_is_stopped (pid_t pid)
@@ -354,3 +355,87 @@
return NULL;
}
+
+#else /* __linux__ */
+
+static pid_t
+pid_next_thread (Dwfl *dwfl __attribute__ ((unused)),
+ void *dwfl_arg __attribute__ ((unused)),
+ void **thread_argp __attribute__ ((unused)))
+{
+ errno = ENOSYS;
+ __libdwfl_seterrno (DWFL_E_ERRNO);
+ return -1;
+}
+
+static bool
+pid_getthread (Dwfl *dwfl __attribute__ ((unused)),
+ pid_t tid __attribute__ ((unused)),
+ void *dwfl_arg __attribute__ ((unused)),
+ void **thread_argp __attribute__ ((unused)))
+{
+ errno = ENOSYS;
+ __libdwfl_seterrno (DWFL_E_ERRNO);
+ return false;
+}
+
+static bool
+pid_memory_read (Dwfl *dwfl __attribute__ ((unused)),
+ Dwarf_Addr addr __attribute__ ((unused)),
+ Dwarf_Word *result __attribute__ ((unused)),
+ void *arg __attribute__ ((unused)))
+{
+ errno = ENOSYS;
+ __libdwfl_seterrno (DWFL_E_ERRNO);
+ return false;
+}
+
+static bool
+pid_set_initial_registers (Dwfl_Thread *thread __attribute__ ((unused)),
+ void *thread_arg __attribute__ ((unused)))
+{
+ errno = ENOSYS;
+ __libdwfl_seterrno (DWFL_E_ERRNO);
+ return false;
+}
+
+static void
+pid_detach (Dwfl *dwfl __attribute__ ((unused)),
+ void *dwfl_arg __attribute__ ((unused)))
+{
+}
+
+static void
+pid_thread_detach (Dwfl_Thread *thread __attribute__ ((unused)),
+ void *thread_arg __attribute__ ((unused)))
+{
+}
+
+static const Dwfl_Thread_Callbacks pid_thread_callbacks =
+{
+ pid_next_thread,
+ pid_getthread,
+ pid_memory_read,
+ pid_set_initial_registers,
+ pid_detach,
+ pid_thread_detach,
+};
+
+int
+dwfl_linux_proc_attach (Dwfl *dwfl __attribute__ ((unused)),
+ pid_t pid __attribute__ ((unused)),
+ bool assume_ptrace_stopped __attribute__ ((unused)))
+{
+ return ENOSYS;
+}
+INTDEF (dwfl_linux_proc_attach)
+
+struct __libdwfl_pid_arg *
+internal_function
+__libdwfl_get_pid_arg (Dwfl *dwfl __attribute__ ((unused)))
+{
+ return NULL;
+}
+
+#endif /* ! __linux __ */
+