systemtap/gcc46warnings.patch
2011-01-24 17:16:32 -05:00

111 lines
3.6 KiB
Diff

commit 5d8a0aeabbbf3d2e4d0a6c51e6ca9b6d9446c8a0
Author: Frank Ch. Eigler <fche@redhat.com>
Date: Mon Jan 24 13:30:04 2011 -0500
GCC 4.6 unused-variable warnings
We set a couple of variables that later code doesn't use. GCC 4.6
warns about them, which our C*FLAGS=-Werror turned into a build failure.
Worked around these by adding a (void) var; to add a dummy use.
diff --git a/grapher/grapher.cxx b/grapher/grapher.cxx
index 0111184..87489af 100644
--- a/grapher/grapher.cxx
+++ b/grapher/grapher.cxx
@@ -72,11 +72,13 @@ extern "C"
strerror_r(errno, errbuf, sizeof(errbuf));
err = write(STDERR_FILENO, errbuf, strlen(errbuf));
err = write(STDERR_FILENO, "\n", 1);
+ (void) err; /* XXX: notused */
return;
}
else if (childInfo.pid > 0)
{
err = write(signalPipe[1], &childInfo, sizeof(childInfo));
+ (void) err; /* XXX: notused */
}
else
return;
diff --git a/runtime/staprun/common.c b/runtime/staprun/common.c
index 4fbc9e5..99026fb 100644
--- a/runtime/staprun/common.c
+++ b/runtime/staprun/common.c
@@ -399,6 +399,7 @@ static void fatal_handler (int signum)
rc = write (STDERR_FILENO, ERR_MSG, sizeof(ERR_MSG));
rc = write (STDERR_FILENO, str, strlen(str));
rc = write (STDERR_FILENO, "\n", 1);
+ (void) rc; /* notused */
_exit(1);
}
diff --git a/runtime/staprun/mainloop.c b/runtime/staprun/mainloop.c
index 2733c2e..1514969 100644
--- a/runtime/staprun/mainloop.c
+++ b/runtime/staprun/mainloop.c
@@ -60,6 +60,7 @@ static void chld_proc(int signum)
return;
// send STP_EXIT
rc = write(control_channel, &btype, sizeof(btype));
+ (void) rc; /* XXX: notused */
}
#if WORKAROUND_BZ467568
@@ -622,6 +623,7 @@ int stp_main_loop(void)
dbug(2, "got STP_REQUEST_EXIT\n");
int32_t rc, btype = STP_EXIT;
rc = write(control_channel, &btype, sizeof(btype));
+ (void) rc; /* XXX: notused */
break;
}
case STP_START:
diff --git a/tapsets.cxx b/tapsets.cxx
index b141921..4daae5e 100644
--- a/tapsets.cxx
+++ b/tapsets.cxx
@@ -5341,7 +5341,6 @@ sdt_query::handle_probe_entry()
probe *new_base = convert_location();
probe_point *new_location = new_base->locations[0];
- bool kprobe_found = false;
bool need_debug_info = false;
Dwarf_Addr bias;
@@ -5351,7 +5350,6 @@ sdt_query::handle_probe_entry()
if (have_kprobe())
{
convert_probe(new_base);
- kprobe_found = true;
// Expand the local variables in the probe body
sdt_kprobe_var_expanding_visitor svv (module_val,
provider_name,
@@ -7726,13 +7724,15 @@ hwbkpt_builder::build(systemtap_session & sess,
"",len,0,
has_write,
has_rw));
- else // has symbol_str
+ else if (has_symbol_str)
finished_results.push_back (new hwbkpt_derived_probe (base,
location,
0,
symbol_str_val,len,0,
has_write,
has_rw));
+ else
+ assert (0);
}
// ------------------------------------------------------------------------
diff --git a/translate.cxx b/translate.cxx
index e5038f9..82f3ee4 100644
--- a/translate.cxx
+++ b/translate.cxx
@@ -4447,6 +4447,8 @@ c_unparser::visit_print_format (print_format* e)
if (components[i].prectype == print_format::prec_dynamic)
prec_ix = arg_ix++;
+ (void) width_ix; /* XXX: notused */
+
/* %m and %M need special care for digging into memory. */
if (components[i].type == print_format::conv_memory
|| components[i].type == print_format::conv_memory_hex)