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Fri, 24 May 2024 12:11:27 -0700 (PDT) Received: from debug.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-6f8fcfe5961sm1424089b3a.164.2024.05.24.12.11.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 May 2024 12:11:26 -0700 (PDT) Date: Fri, 24 May 2024 12:11:22 -0700 From: Deepak Gupta To: Andy Chiu Cc: paul.walmsley@sifive.com, rick.p.edgecombe@intel.com, broonie@kernel.org, Szabolcs.Nagy@arm.com, kito.cheng@sifive.com, keescook@chromium.org, ajones@ventanamicro.com, conor.dooley@microchip.com, cleger@rivosinc.com, atishp@atishpatra.org, alex@ghiti.fr, bjorn@rivosinc.com, alexghiti@rivosinc.com, samuel.holland@sifive.com, conor@kernel.org, linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kselftest@vger.kernel.org, corbet@lwn.net, palmer@dabbelt.com, aou@eecs.berkeley.edu, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, oleg@redhat.com, akpm@linux-foundation.org, arnd@arndb.de, ebiederm@xmission.com, Liam.Howlett@oracle.com, vbabka@suse.cz, lstoakes@gmail.com, shuah@kernel.org, brauner@kernel.org, jerry.shih@sifive.com, hankuan.chen@sifive.com, greentime.hu@sifive.com, evan@rivosinc.com, xiao.w.wang@intel.com, charlie@rivosinc.com, apatel@ventanamicro.com, mchitale@ventanamicro.com, dbarboza@ventanamicro.com, sameo@rivosinc.com, shikemeng@huaweicloud.com, willy@infradead.org, vincent.chen@sifive.com, guoren@kernel.org, samitolvanen@google.com, songshuaishuai@tinylab.org, gerg@kernel.org, heiko@sntech.de, bhe@redhat.com, jeeheng.sia@starfivetech.com, cyy@cyyself.name, maskray@google.com, ancientmodern4@gmail.com, mathis.salmen@matsal.de, cuiyunhui@bytedance.com, bgray@linux.ibm.com, mpe@ellerman.id.au, baruch@tkos.co.il, alx@kernel.org, david@redhat.com, catalin.marinas@arm.com, revest@chromium.org, josh@joshtriplett.org, shr@devkernel.io, deller@gmx.de, omosnace@redhat.com, ojeda@kernel.org, jhubbard@nvidia.com Subject: Re: [PATCH v3 22/29] riscv sigcontext: adding cfi state field in sigcontext Message-ID: References: <20240403234054.2020347-1-debug@rivosinc.com> <20240403234054.2020347-23-debug@rivosinc.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240524_121129_285364_27D30C0D X-CRM114-Status: GOOD ( 19.99 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gRnJpLCBNYXkgMjQsIDIwMjQgYXQgMDU6NDY6MTZQTSArMDgwMCwgQW5keSBDaGl1IHdyb3Rl Ogo+SGkgRGVlcGFrLAo+Cj5PbiBUaHUsIEFwciA0LCAyMDI0IGF0IDc6NDLigK9BTSBEZWVwYWsg R3VwdGEgPGRlYnVnQHJpdm9zaW5jLmNvbT4gd3JvdGU6Cj4+Cj4+IFNoYWRvdyBzdGFjayBuZWVk cyB0byBiZSBzYXZlZCBhbmQgcmVzdG9yZWQgb24gc2lnbmFsIGRlbGl2ZXJ5IGFuZCBzaWduYWwK Pj4gcmV0dXJuLgo+Pgo+PiBzaWdjb250ZXh0IGVtYmVkZGVkIGluIHVjb250ZXh0IGlzIGV4dGVu ZGlibGUuIEFkZGluZyBjZmkgc3RhdGUgaW4gdGhlcmUKPj4gd2hpY2ggY2FuIGJlIHVzZWQgdG8g c2F2ZSBjZmkgc3RhdGUgYmVmb3JlIHNpZ25hbCBkZWxpdmVyeSBhbmQgcmVzdG9yZQo+PiBjZmkg c3RhdGUgb24gc2lncmV0dXJuCj4+Cj4+IFNpZ25lZC1vZmYtYnk6IERlZXBhayBHdXB0YSA8ZGVi dWdAcml2b3NpbmMuY29tPgo+PiAtLS0KPj4gIGFyY2gvcmlzY3YvaW5jbHVkZS91YXBpL2FzbS9z aWdjb250ZXh0LmggfCA1ICsrKysrCj4+ICAxIGZpbGUgY2hhbmdlZCwgNSBpbnNlcnRpb25zKCsp Cj4+Cj4+IGRpZmYgLS1naXQgYS9hcmNoL3Jpc2N2L2luY2x1ZGUvdWFwaS9hc20vc2lnY29udGV4 dC5oIGIvYXJjaC9yaXNjdi9pbmNsdWRlL3VhcGkvYXNtL3NpZ2NvbnRleHQuaAo+PiBpbmRleCBj ZDRmMTc1ZGM4MzcuLjVjY2RkOTRhMDg1NSAxMDA2NDQKPj4gLS0tIGEvYXJjaC9yaXNjdi9pbmNs dWRlL3VhcGkvYXNtL3NpZ2NvbnRleHQuaAo+PiArKysgYi9hcmNoL3Jpc2N2L2luY2x1ZGUvdWFw aS9hc20vc2lnY29udGV4dC5oCj4+IEBAIC0yMSw2ICsyMSwxMCBAQCBzdHJ1Y3QgX19zY19yaXNj dl92X3N0YXRlIHsKPj4gICAgICAgICBzdHJ1Y3QgX19yaXNjdl92X2V4dF9zdGF0ZSB2X3N0YXRl Owo+PiAgfSBfX2F0dHJpYnV0ZV9fKChhbGlnbmVkKDE2KSkpOwo+Pgo+PiArc3RydWN0IF9fc2Nf cmlzY3ZfY2ZpX3N0YXRlIHsKPj4gKyAgICAgICB1bnNpZ25lZCBsb25nIHNzX3B0cjsgICAvKiBz aGFkb3cgc3RhY2sgcG9pbnRlciAqLwo+PiArICAgICAgIHVuc2lnbmVkIGxvbmcgcnN2ZDsgICAg ICAgICAgICAgLyoga2VlcGluZyBhbm90aGVyIHdvcmQgcmVzZXJ2ZWQgaW4gY2FzZSB3ZSBuZWVk IGl0ICovCj4+ICt9Owo+PiAgLyoKPj4gICAqIFNpZ25hbCBjb250ZXh0IHN0cnVjdHVyZQo+PiAg ICoKPj4gQEAgLTI5LDYgKzMzLDcgQEAgc3RydWN0IF9fc2NfcmlzY3Zfdl9zdGF0ZSB7Cj4+ICAg Ki8KPj4gIHN0cnVjdCBzaWdjb250ZXh0IHsKPj4gICAgICAgICBzdHJ1Y3QgdXNlcl9yZWdzX3N0 cnVjdCBzY19yZWdzOwo+PiArICAgICAgIHN0cnVjdCBfX3NjX3Jpc2N2X2NmaV9zdGF0ZSBzY19j Zmlfc3RhdGU7Cj4KPkkgYW0gY29uY2VybmVkIGFib3V0IHRoaXMgY2hhbmdlIGFzIHRoaXMgY291 bGQgcG90ZW50aWFsbHkgYnJlYWsgdWFiaS4KPkxldCdzIHNheSB0aGVyZSBpcyBhIHByZS1DRkkg cHJvZ3JhbSBydW5uaW5nIG9uIHRoaXMga2VybmVsLiBJdAo+cmVjZWl2ZXMgYSBzaWduYWwgc28g dGhlIGtlcm5lbCBsYXlzIG91dCB0aGUgc2lnLXN0YWNrIGFzIHByZXNlbnRlZCBpbgo+dGhpcyBz dHJ1Y3R1cmUuIElmIHRoZSBwcm9ncmFtIGFjY2Vzc2VzIHNjX2ZwcmVncywgaXQgd291bGQgbm93 IGdldAo+c2NfY2ZpX3N0YXRlLiBBcyB0aGUgb2Zmc2V0IGhhcyBjaGFuZ2VkLCBhbmQgdGhlIHBy ZS1DRkkgcHJvZ3JhbSBoYXMKPm5vdCBiZWVuIHJlLWNvbXBpbGVkLgoKWWVhaCB0aGlzIGlzIGEg cHJvYmxlbSBpZiBwcm9ncmFtIHdhcyBidWlsdCB3aXRoIG9sZGVyIGtlcm5lbC9vbGQgdG9vbGNo YWluCihvciBjZmkgdW5hd2FyZSB0b29sY2hhaW4pLiBUaGFua3MuCgo+Cj4+ICAgICAgICAgdW5p b24gewo+PiAgICAgICAgICAgICAgICAgdW5pb24gX19yaXNjdl9mcF9zdGF0ZSBzY19mcHJlZ3M7 Cj4+ICAgICAgICAgICAgICAgICBzdHJ1Y3QgX19yaXNjdl9leHRyYV9leHRfaGVhZGVyIHNjX2V4 dGRlc2M7Cj4+IC0tCj4+IDIuNDMuMgo+Pgo+Cj5UaGVyZSBtYXkgYmUgdHdvIHdheXMgdG8gZGVh bCB3aXRoIHRoaXMuIE9uZSBpcyB0byB1c2UgYSBkaWZmZXJlbnQKPnNpZ25hbCBBQkkgZm9yIENG SS1lbmFibGVkIHByb2dyYW1zLiBUaGlzIG1heSBjb21wbGljYXRlIHRoZSB1c2VyCj5zcGFjZSBi ZWNhdXNlIG5ldyBwcm9ncmFtcyB3aWxsIGhhdmUgdG8gZGV0ZXJtaW5lIHdoZXRoZXIgaXQgc2hv dWxkCj51c2UgdGhlIENGSS1BQkkgYXQgcnVuIHRpbWUuIEFub3RoZXIgd2F5IGlzIHRvIGZvbGxv dyB3aGF0IFZlY3RvciBkb2VzCj5mb3Igc2lnbmFsIHN0YWNrLiBJdCBhZGRzIGEgd2F5IHRvIGlu dHJvZHVjZSBuZXcgZXh0ZW5zaW9ucyBvbiBzaWduYWwKPnN0YWNrIHdpdGhvdXQgaW1wYWN0aW5n IEFCSS4KPgo+UGxlYXNlIGxldCBtZSBrbm93IGlmIEkgbWlzdW5kZXJzdGFuZCBhbnl0aGluZywg dGhhbmtzLgoKSSB0aGluayBmb2xsb3dpbmcgaG93IHZlY3RvciBkb2VzIHdvdWxkIGJlIGNsZWFu ZXIuCkxldCBtZSBtdW5jaCBvbiB0aGlzIGEgbGl0dGxlIGJpdC4KCj4KPkNoZWVycywKPkFuZHkK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LXJp c2N2IG1haWxpbmcgbGlzdApsaW51eC1yaXNjdkBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9s aXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtcmlzY3YK