| commit | 5a3cf18c2ed9593f194ea22f50ea5651532f6cfc | [log] [tgz] |
|---|---|---|
| author | Tom de Vries <tdevries@suse.de> | Mon May 23 14:50:02 2022 +0200 |
| committer | Tom de Vries <tdevries@suse.de> | Mon May 23 14:50:02 2022 +0200 |
| tree | 4b617189ef5761bb5f892e09774bedf49865dc52 | |
| parent | 05527d8ca1082b4607e9ddc3209691f454b3b186 [diff] |
[gdb/exp] Fix UB in scalar_binop When building gdb with -fsanitize=undefined, I run into: ... $ gdb -q -batch -ex "p -(-0x7fffffffffffffff - 1)" src/gdb/valarith.c:1385:10: runtime error: signed integer overflow: \ 0 - -9223372036854775808 cannot be represented in type 'long int' $1 = -9223372036854775808 ... Fix this by performing the substraction in scalar_binop using unsigned types. Tested on x86_64-linux.