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From: "tuliom at ascii dot art.br" <sourceware-bugzilla@sourceware.org> To: gdb-prs@sourceware.org Subject: [Bug gdb/30457] New: Unexpected sign extension during conversions Date: Wed, 17 May 2023 14:49:48 +0000 [thread overview] Message-ID: <bug-30457-4717@http.sourceware.org/bugzilla/> (raw) https://sourceware.org/bugzilla/show_bug.cgi?id=30457 Bug ID: 30457 Summary: Unexpected sign extension during conversions Product: gdb Version: HEAD Status: NEW Severity: normal Priority: P2 Component: gdb Assignee: unassigned at sourceware dot org Reporter: tuliom at ascii dot art.br Target Milestone: --- Reproducer: $ cat test-gdb-print.c #include <stdio.h> int main() { unsigned long foo = 0x00007fffffffe8f8; unsigned long * bar = &foo; printf("*bar = 0x%lx\n", *bar); return 0; } $ gcc -g test-gdb-print.c $ gdb a.out >>> b test-gdb-print.c:9 Breakpoint 1 at 0x401144: file test-gdb-print.c, line 9. >>> r >>> p /x *bar $1 = 0x7fffffffe8f8 <--- OK, this is what we expect. >>> p /x bar $2 = 0x7fffffffda40 >>> p /x (unsigned long) *0x7fffffffda40 $3 = 0xffffffffffffe8f8 <--- The value got sign extended. -- You are receiving this mail because: You are on the CC list for the bug.
next reply other threads:[~2023-05-17 14:49 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-05-17 14:49 tuliom at ascii dot art.br [this message] 2023-05-17 15:42 ` [Bug gdb/30457] " tromey at sourceware dot org 2023-05-17 16:24 ` schwab@linux-m68k.org
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