In https://sourceware.org/ml/gdb-patches/2017-12/msg00215.html, 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 <tom@tromey.com>
* gdb.guile/scm-ports.exp (test_mem_port_rw): Use get_valueof to
compute sp_reg.
86d6a90c58