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Wed, 29 Oct 2025 08:57:34 -0700 (PDT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: Sean Anderson , =?UTF-8?q?Alex=20Benn=C3=A9e?= Subject: [PULL 35/35] semihosting: Fix GDB File-I/O FLEN Date: Wed, 29 Oct 2025 15:50:44 +0000 Message-ID: <20251029155045.257802-36-alex.bennee@linaro.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251029155045.257802-1-alex.bennee@linaro.org> References: <20251029155045.257802-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::62d; envelope-from=alex.bennee@linaro.org; helo=mail-ej1-x62d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, T_SPF_HELO_TEMPERROR=0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1761753569967154100 From: Sean Anderson fstat returns 0 on success and -1 on error. Since we have already checked for error, ret must be zero. Therefore, any call to fstat on a non-empty file will return -1/EOVERFLOW. Restore the original logic that just did a byteswap. I don't really know what the intention of the fixed commit was. Fixes: a6300ed6b7 ("semihosting: Split out semihost_sys_flen") Signed-off-by: Sean Anderson Reviewed-by: Alex Benn=C3=A9e Message-ID: <20251027110344.2289945-36-alex.bennee@linaro.org> Signed-off-by: Alex Benn=C3=A9e diff --git a/semihosting/arm-compat-semi.c b/semihosting/arm-compat-semi.c index 61001267965..c5a07cb947b 100644 --- a/semihosting/arm-compat-semi.c +++ b/semihosting/arm-compat-semi.c @@ -316,10 +316,7 @@ common_semi_flen_fstat_cb(CPUState *cs, uint64_t ret, = int err) &size, 8, 0)) { ret =3D -1, err =3D EFAULT; } else { - size =3D be64_to_cpu(size); - if (ret !=3D size) { - ret =3D -1, err =3D EOVERFLOW; - } + ret =3D be64_to_cpu(size); } } common_semi_cb(cs, ret, err); --=20 2.47.3