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[FYI,v3,5/8] Add support for the Rust language

Message ID 87lh37xrvx.fsf@tromey.com
State New
Headers show

Commit Message

Tom Tromey May 18, 2016, 4:17 p.m. UTC
>>>>> "Ulrich" == Ulrich Weigand <uweigand@de.ibm.com> writes:

Ulrich> This causes a build failure on my RHEL5 daily build for SPU,
Ulrich> which uses a GCC 4.1 host compiler:

Ulrich> gdb/rust-lang.c: In function 'value* rust_subscript(expression*, int*,
Ulrich> noside, int)':
Ulrich> gdb/rust-lang.c:1311: warning: 'high' may be used uninitialized in this function

Could you try the appended?  If it works for you I will check it in.

Tom
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Patch

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index b7a6351..073d482 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@ 
+2016-05-18  Tom Tromey  <tom@tromey.com>
+
+	* rust-lang.c (rust_subscript): Initialize "high".
+
 2016-05-17  Tom Tromey  <tom@tromey.com>
 
 	* std-operator.def (OP_RANGE): Rename from OP_F90_RANGE.
diff --git a/gdb/rust-lang.c b/gdb/rust-lang.c
index b8af166..5df99ce 100644
--- a/gdb/rust-lang.c
+++ b/gdb/rust-lang.c
@@ -1308,9 +1308,10 @@  rust_subscript (struct expression *exp, int *pos, enum noside noside,
 {
   struct value *lhs, *rhs, *result;
   struct type *rhstype;
-  LONGEST low, high, high_bound;
+  LONGEST low, high_bound;
   /* Initialized to appease the compiler.  */
   enum range_type kind = BOTH_BOUND_DEFAULT;
+  LONGEST high = 0;
   int want_slice = 0;
 
   ++*pos;