From: mec.gnu@mindspring.com (Michael Elizabeth Chastain)
To: gdb@sources.redhat.com, jjohnstn@redhat.com
Subject: regression with huge integer
Date: Mon, 23 Feb 2004 19:55:00 -0000 [thread overview]
Message-ID: <20040223195548.B7CDD4B104@berman.michael-chastain.com> (raw)
gdb.stabs/weird.def has this huge integer:
# 256-bit integer. The point is obviously not that GDB should have a
# special case for this size, but that an integer of any size should
# work (at least for printing in hex, not necessarily for arithmetic.
.stabs "int256var:G203=bu32;0;256;", N_GSYM,0,0, 0
# The value is palindromic, so it works whether words are big or little
# endian.
.globl int256var
.data
.align_it
int256var:
.long 42
.long 0x2b, 0x2c, 0x2d, 0x2d, 0x2c, 0x2b, 0x2a
gdb 6.0 can print this just fine:
(gdb) print int256var
$1 = 0x0000002a0000002b0000002c0000002d0000002d0000002c0000002b0000002a
(gdb) print /x int256var
$2 = 0x0000002a0000002b0000002c0000002d0000002d0000002c0000002b0000002a
But with the recent simplification to print_scalar_formatted, gdb HEAD says:
(gdb) print int256var
$1 = 0x0000002a0000002b0000002c0000002d0000002d0000002c0000002b0000002a
(gdb) print /x int256var
$2 = That operation is not available on integers of more than 8 bytes.
This causes a regression in the test results.
I would like to just accept this output and change the test script.
Specifically, in gdb.stabs/weird.exp:
# This big number needs to be kept as one piece
- gdb_test "p/x int256var" " = 0x0*2a0000002b0000002c0000002d0000002d0000002c0000002b0000002a" "print very big integer"
+ gdb_test "print int256var" " = 0x0*2a0000002b0000002c0000002d0000002d0000002c0000002b0000002a" "print very big integer"
Is this a good idea? Or should I file a bug that "print /x" does not work
in this case?
Michael C
next reply other threads:[~2004-02-23 19:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-23 19:55 Michael Elizabeth Chastain [this message]
2004-02-23 20:44 ` Andreas Schwab
2004-02-23 21:27 ` Mark Kettenis
2004-02-23 21:31 ` Andrew Cagney
2004-02-23 22:25 ` Jeff Johnston
2004-02-26 22:16 ` [RFA]: Patch for " Jeff Johnston
2004-02-26 23:09 ` Andrew Cagney
2004-02-26 23:17 ` Daniel Jacobowitz
2004-02-26 23:48 ` Jeff Johnston
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