This is the mail archive of the gdb-patches@sourceware.cygnus.com mailing list for the GDB project. See the GDB home page for more information.
| Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
|---|---|---|
| Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Compiling gdb-981121 on AIX 4.2, I get the following messages :
gcc -c -g -O2 -I. -I/usr/gnu/tmp/gdb-981121/gdb -I/usr/gnu/tmp/gdb-981121/gdb/config -DHAVE_CONFIG_H -I/usr/gnu/tmp/gdb-981121/gdb/../include/opcode -I/usr/gnu/tmp/gdb-981121/gdb/../readline -I../bfd -I/usr/gnu/tmp/gdb-981121/gdb/../bfd -I/usr/gnu/tmp/gdb-981121/gdb/../include -I../intl -I/usr/gnu/tmp/gdb-981121/gdb/../intl /usr/gnu/tmp/gdb-981121/gdb/findvar.c
/usr/gnu/tmp/gdb-981121/gdb/findvar.c: In function `read_relative_register_raw_bytes':
/usr/gnu/tmp/gdb-981121/gdb/findvar.c:533: warning: comparison is always 0 due to limited range of data type
/usr/gnu/tmp/gdb-981121/gdb/findvar.c: In function `value_of_register':
/usr/gnu/tmp/gdb-981121/gdb/findvar.c:559: warning: comparison is always 0 due to limited range of data type
/usr/gnu/tmp/gdb-981121/gdb/findvar.c: In function `value_from_register':
/usr/gnu/tmp/gdb-981121/gdb/findvar.c:1407: warning: comparison is always 0 due to limited range of data type
/usr/gnu/tmp/gdb-981121/gdb/findvar.c:1472: warning: comparison is always 0 due to limited range of data type
Here is a fix :
Tue Dec 8 00:34:20 1998 Philippe De Muyter <phdm@macqel.be>
* inferior.h (register_valid): Variable's type is `SIGNED char', not
`char'.
* findvar.c (register_valid): Ditto.
--- ./gdb/inferior.h Tue Dec 8 00:19:21 1998
+++ ./gdb/inferior.h Tue Dec 8 00:19:02 1998
@@ -100,9 +100,10 @@
extern char registers[];
/* Array of validity bits (one per register). Nonzero at position XXX_REGNUM
- means that `registers' contains a valid copy of inferior register XXX. */
+ means that `registers' contains a valid copy of inferior register XXX.
+ -1 if register value is not available. */
-extern char register_valid[NUM_REGS];
+extern SIGNED char register_valid[NUM_REGS];
extern void clear_proceed_status PARAMS ((void));
--- ./gdb/findvar.c Fri Dec 4 01:01:38 1998
+++ ./gdb/findvar.c Thu Nov 26 20:14:38 1998
@@ -598,8 +598,9 @@ value_of_register (regnum)
char registers[REGISTER_BYTES + /* SLOP */ 256];
-/* Nonzero if that register has been fetched. */
-char register_valid[NUM_REGS];
+/* Nonzero if that register has been fetched,
+ -1 if register value not available. */
+SIGNED char register_valid[NUM_REGS];
/* The thread/process associated with the current set of registers. For now,
-1 is special, and means `no current process'. */