diff options
authorTom Tromey <>2018-01-03 11:12:34 -0700
committerTom Tromey <>2018-01-15 11:49:35 -0700
commit92533dc55ed6aee88da718487f075692074b00dd (patch)
parentea3b3edea774c2625e894eb9cfa051601e88d068 (diff)
Fix scm-ports.exp regressiongdb-8.0-branch
In, Jan pointed out that the scalar printing patches caused a regression in scm-ports.exp on x86. What happens is that on x86, this: set sp_reg [get_integer_valueof "\$sp" 0] ... ends up setting sp_reg to a negative value, because get_integer_valueof uses "print/d": print /d $sp $1 = -11496 Then later the test suite does: gdb_test "guile (print (seek rw-mem-port (value->integer sp-reg) SEEK_SET))" \ "= $sp_reg" \ "seek to \$sp" ... expecting this value to be identical to the saved $sp_reg value. However it gets: guile (print (seek rw-mem-port (value->integer sp-reg) SEEK_SET)) = 4294955800 "print" is just a wrapper for guile's format: gdb_test_no_output "guile (define (print x) (format #t \"= ~A\" x) (newline))" The seek function returns a scm_t_off, the printing of which is handled by guile, not by gdb. Tested on x86-64 Fedora 26 using an ordinary build and also a -m32 build. 2018-01-15 Tom Tromey <> * gdb.guile/scm-ports.exp (test_mem_port_rw): Use get_valueof to compute sp_reg.
2 files changed, 6 insertions, 1 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 06d882917b..daa7065b23 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-01-15 Tom Tromey <>
+ * gdb.guile/scm-ports.exp (test_mem_port_rw): Use get_valueof to
+ compute sp_reg.
2017-09-05 Simon Marchi <>
* gdb.multi/multi-arch-exec.exp: Test with different
diff --git a/gdb/testsuite/gdb.guile/scm-ports.exp b/gdb/testsuite/gdb.guile/scm-ports.exp
index 314db3a1fe..825cbdad92 100644
--- a/gdb/testsuite/gdb.guile/scm-ports.exp
+++ b/gdb/testsuite/gdb.guile/scm-ports.exp
@@ -104,7 +104,7 @@ proc test_mem_port_rw { kind } {
"get sp reg"
# Note: Only use $sp_reg for gdb_test result matching, don't use it in
# gdb commands. Otherwise transcript.N becomes unusable.
- set sp_reg [get_integer_valueof "\$sp" 0]
+ set sp_reg [get_valueof /u "\$sp" 0]
gdb_test_no_output "guile (define byte-at-sp (parse-and-eval \"*(char*) \$sp\"))" \
"save current value at sp"
# Pass the result of parse-and-eval through value-fetch-lazy!,