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Sun, 02 Aug 2026 09:34:22 +0000 From: Tom de Vries To: gdb-patches@sourceware.org Subject: [PATCH 1/2] [gdb/testsuite] Fix gdb.base/examine-address-class.exp for big endian Date: Sun, 2 Aug 2026 11:34:20 +0200 Message-ID: <20260802093421.794182-2-tdevries@suse.de> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260802093421.794182-1-tdevries@suse.de> References: <20260802093421.794182-1-tdevries@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Action: no action X-Rspamd-Queue-Id: 6AFDA45C4 X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[99.99%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[gdb-patches@sourceware.org]; FROM_EQ_ENVFROM(0.00)[]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; URIBL_BLOCKED(0.00)[suse.de:mid,suse.de:dkim]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; MIME_TRACE(0.00)[0:+]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; DKIM_TRACE(0.00)[suse.de:+] X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org On ppc64-linux and s390x-linux, with test-case gdb.base/examine-address-class.exp I get: ... (gdb) x/1dh (int *) &var^M 0x3fffffffe560: 0^M (gdb) FAIL: $exp: x/1dh (int *) &var ... This is caused by big vs. little endian. On x86_64-linux (little endian), we have: ... (gdb) p /x ((short *)&var)[0] $6 = 0x2a (gdb) p /x ((short *)&var)[1] $7 = 0x0 (gdb) ... And on ppc64-linux (big endian), we have: ... (gdb) p /x ((short *)&var)[0] $2 = 0x0 (gdb) p /x ((short *)&var)[1] $3 = 0x2a ... Fix this by assigning 0x002a0x002a to var, making sure that ((short *)&var)[0] == ((short *)&var)[1] == 42. Tested on x86_64-linux, ppc64-linux and s390x-linux. --- gdb/testsuite/gdb.base/examine-address-class.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gdb/testsuite/gdb.base/examine-address-class.c b/gdb/testsuite/gdb.base/examine-address-class.c index c868b10119f..8f6b89c14bf 100644 --- a/gdb/testsuite/gdb.base/examine-address-class.c +++ b/gdb/testsuite/gdb.base/examine-address-class.c @@ -18,6 +18,6 @@ int main (void) { - int var = 42; + int var = 0x002a002a; return 0; /* break-here. */ } -- 2.51.0