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| author | Tom Tromey <tom@tromey.com> | 2023-11-24 12:10:53 -0700 |
|---|---|---|
| committer | Tom Tromey <tom@tromey.com> | 2023-12-08 08:17:40 -0700 |
| commit | 44671f3f7f4c6435e7a639ad2215629f4e1ea8a7 (patch) | |
| tree | b364744f0451f5e8704f94f454b1c943c8546e50 /gdb/testsuite/gdb.rust/expr.exp | |
| parent | 703adbb1f97db52ed63b2a6a074195b1cee0f132 (diff) | |
| download | binutils-44671f3f7f4c6435e7a639ad2215629f4e1ea8a7.zip binutils-44671f3f7f4c6435e7a639ad2215629f4e1ea8a7.tar.gz binutils-44671f3f7f4c6435e7a639ad2215629f4e1ea8a7.tar.bz2 | |
Allow cast of 128-bit integer to pointer
PR rust/31082 points out that casting a 128-bit integer to a pointer
will fail. This happens because a case in value_cast was not
converted to use GMP.
This patch fixes the problem. I am not really sure that testing
against the negative value here makes sense, but I opted to just
preserve the existing behavior rather than change it.
Regression tested on x86-64 Fedora 38.
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31082
Diffstat (limited to 'gdb/testsuite/gdb.rust/expr.exp')
| -rw-r--r-- | gdb/testsuite/gdb.rust/expr.exp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.rust/expr.exp b/gdb/testsuite/gdb.rust/expr.exp index ce2cce2..cec3c1f 100644 --- a/gdb/testsuite/gdb.rust/expr.exp +++ b/gdb/testsuite/gdb.rust/expr.exp @@ -169,3 +169,8 @@ gdb_test "with debug expression 1 -- print \"foo\"" \ " Constant: 0" \ "evaluation of this expression requires the target program to be active"] \ "print a string with expression debug turned on" + +# PR rust/31082 - truncating to a pointer would fail. Depending on +# the default host architecture, this may or may not print a warning. +gdb_test "print (0xffffffd00000009a as *mut u64)" \ + "(warning: value truncated\[\r\n\]+)?.* = \\(\\*mut u64\\) $hex" |