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Wed, 05 Aug 2026 10:15:19 -0700 (PDT) Received: from localhost ([2600:1702:7a90:6f9f:8bc4:8aec:108d:7a04]) by smtp.gmail.com with ESMTPSA id 00721157ae682-8201341ca2dsm24371757b3.25.2026.08.05.10.15.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Aug 2026 10:15:17 -0700 (PDT) From: Matt Turner To: qemu-devel@nongnu.org Cc: Matt Turner , Laurent Vivier , Helge Deller , Pierrick Bouvier Subject: [PATCH 5/5] linux-user/sh4: write the floating-point registers to a core dump Date: Wed, 5 Aug 2026 13:15:07 -0400 Message-ID: <20260805171507.3119442-5-mattst88@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260805171507.3119442-1-mattst88@gmail.com> References: <20260805171507.3119442-1-mattst88@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1129; envelope-from=mattst88@gmail.com; helo=mail-yw1-x1129.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 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, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Write an NT_FPREGSET note for SH4, matching struct user_fpu_struct from arch/sh/include/asm/user.h: fr0-fr15, xf0-xf15, fpscr, fpul. Signed-off-by: Matt Turner --- linux-user/sh4/elfload.c | 10 ++++++++++ linux-user/sh4/target_elf.h | 12 ++++++++++++ 2 files changed, 22 insertions(+) diff --git ./linux-user/sh4/elfload.c ./linux-user/sh4/elfload.c index f03ce49e7d..41601626ca 100644 --- ./linux-user/sh4/elfload.c +++ ./linux-user/sh4/elfload.c @@ -52,6 +52,16 @@ abi_ulong get_elf_hwcap(CPUState *cs) return hwcap; } +void elf_core_copy_fpregs(target_elf_fpregset_t *r, const CPUSH4State *env) +{ + for (int i = 0; i < 16; i++) { + r->fpregs[i] = tswap32(env->fregs[i]); + r->xfpregs[i] = tswap32(env->fregs[16 + i]); + } + r->fpscr = tswap32(env->fpscr); + r->fpul = tswap32(env->fpul); +} + void elf_core_copy_regs(target_elf_gregset_t *r, const CPUSH4State *env) { for (int i = 0; i < 16; i++) { diff --git ./linux-user/sh4/target_elf.h ./linux-user/sh4/target_elf.h index 3fcb63d409..5923022036 100644 --- ./linux-user/sh4/target_elf.h +++ ./linux-user/sh4/target_elf.h @@ -25,4 +25,16 @@ typedef struct target_elf_gregset_t { struct target_pt_regs pt; } target_elf_gregset_t; +#define HAVE_ELF_CORE_FPREGS 1 + +/* + * Matches struct user_fpu_struct from arch/sh/include/asm/user.h. + */ +typedef struct target_elf_fpregset_t { + uint32_t fpregs[16]; + uint32_t xfpregs[16]; + uint32_t fpscr; + uint32_t fpul; +} target_elf_fpregset_t; + #endif -- 2.54.0