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Mon, 24 Jun 2024 07:23:01 +0000 (GMT) Message-ID: Date: Mon, 24 Jun 2024 12:52:59 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] target/ppc/arch_dump: set prstatus pid to cpuid To: Omar Sandoval , qemu-devel@nongnu.org Cc: qemu-s390x@nongnu.org, qemu-ppc@nongnu.org, Richard Henderson , David Hildenbrand , Ilya Leoshkevich , Thomas Huth , Nicholas Piggin , Daniel Henrique Barboza , linux-debuggers@vger.kernel.org References: Content-Language: en-US From: Harsh Prateek Bora In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 4uvSc5ez22pzUqe8Ye740KIB_wl9HYjr X-Proofpoint-ORIG-GUID: RgZiazhRHMw6P-pUTBLv24qg3kGQpUB0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-06-24_07,2024-06-21_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 spamscore=0 clxscore=1011 priorityscore=1501 mlxlogscore=962 mlxscore=0 malwarescore=0 adultscore=0 phishscore=0 suspectscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2406140001 definitions=main-2406240058 Received-SPF: pass client-ip=148.163.156.1; envelope-from=harshpb@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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: 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 Hi Omar, On 6/19/24 10:30, Omar Sandoval wrote: > Every other architecture does this, and debuggers need it to be able to > identify which prstatus note corresponds to which CPU. > > Signed-off-by: Omar Sandoval > --- > target/ppc/arch_dump.c | 21 ++++++++++++--------- > 1 file changed, 12 insertions(+), 9 deletions(-) > > diff --git a/target/ppc/arch_dump.c b/target/ppc/arch_dump.c > index a8315659d9..78b4205319 100644 > --- a/target/ppc/arch_dump.c > +++ b/target/ppc/arch_dump.c > @@ -47,9 +47,11 @@ struct PPCUserRegStruct { > } QEMU_PACKED; > > struct PPCElfPrstatus { > - char pad1[112]; > + char pad1[32]; > + uint32_t pid; > + uint8_t pad2[76]; > struct PPCUserRegStruct pr_reg; > - char pad2[40]; > + char pad3[40]; > } QEMU_PACKED; > Could you please add a comment above the struct providing reference to the spec being referred here for member position across the status bits? With that, Reviewed-by: Harsh Prateek Bora > > @@ -96,7 +98,7 @@ typedef struct NoteFuncArg { > DumpState *state; > } NoteFuncArg; > > -static void ppc_write_elf_prstatus(NoteFuncArg *arg, PowerPCCPU *cpu) > +static void ppc_write_elf_prstatus(NoteFuncArg *arg, PowerPCCPU *cpu, int id) > { > int i; > reg_t cr; > @@ -109,6 +111,7 @@ static void ppc_write_elf_prstatus(NoteFuncArg *arg, PowerPCCPU *cpu) > > prstatus = ¬e->contents.prstatus; > memset(prstatus, 0, sizeof(*prstatus)); > + prstatus->pid = cpu_to_dump32(s, id); > reg = &prstatus->pr_reg; > > for (i = 0; i < 32; i++) { > @@ -127,7 +130,7 @@ static void ppc_write_elf_prstatus(NoteFuncArg *arg, PowerPCCPU *cpu) > reg->ccr = cpu_to_dump_reg(s, cr); > } > > -static void ppc_write_elf_fpregset(NoteFuncArg *arg, PowerPCCPU *cpu) > +static void ppc_write_elf_fpregset(NoteFuncArg *arg, PowerPCCPU *cpu, int id) > { > int i; > struct PPCElfFpregset *fpregset; > @@ -146,7 +149,7 @@ static void ppc_write_elf_fpregset(NoteFuncArg *arg, PowerPCCPU *cpu) > fpregset->fpscr = cpu_to_dump_reg(s, cpu->env.fpscr); > } > > -static void ppc_write_elf_vmxregset(NoteFuncArg *arg, PowerPCCPU *cpu) > +static void ppc_write_elf_vmxregset(NoteFuncArg *arg, PowerPCCPU *cpu, int id) > { > int i; > struct PPCElfVmxregset *vmxregset; > @@ -178,7 +181,7 @@ static void ppc_write_elf_vmxregset(NoteFuncArg *arg, PowerPCCPU *cpu) > vmxregset->vscr.u32[3] = cpu_to_dump32(s, ppc_get_vscr(&cpu->env)); > } > > -static void ppc_write_elf_vsxregset(NoteFuncArg *arg, PowerPCCPU *cpu) > +static void ppc_write_elf_vsxregset(NoteFuncArg *arg, PowerPCCPU *cpu, int id) > { > int i; > struct PPCElfVsxregset *vsxregset; > @@ -195,7 +198,7 @@ static void ppc_write_elf_vsxregset(NoteFuncArg *arg, PowerPCCPU *cpu) > } > } > > -static void ppc_write_elf_speregset(NoteFuncArg *arg, PowerPCCPU *cpu) > +static void ppc_write_elf_speregset(NoteFuncArg *arg, PowerPCCPU *cpu, int id) > { > struct PPCElfSperegset *speregset; > Note *note = &arg->note; > @@ -211,7 +214,7 @@ static void ppc_write_elf_speregset(NoteFuncArg *arg, PowerPCCPU *cpu) > > static const struct NoteFuncDescStruct { > int contents_size; > - void (*note_contents_func)(NoteFuncArg *arg, PowerPCCPU *cpu); > + void (*note_contents_func)(NoteFuncArg *arg, PowerPCCPU *cpu, int id); > } note_func[] = { > {sizeof_field(Note, contents.prstatus), ppc_write_elf_prstatus}, > {sizeof_field(Note, contents.fpregset), ppc_write_elf_fpregset}, > @@ -282,7 +285,7 @@ static int ppc_write_all_elf_notes(const char *note_name, > arg.note.hdr.n_descsz = cpu_to_dump32(s, nf->contents_size); > strncpy(arg.note.name, note_name, sizeof(arg.note.name)); > > - (*nf->note_contents_func)(&arg, cpu); > + (*nf->note_contents_func)(&arg, cpu, id); > > note_size = > sizeof(arg.note) - sizeof(arg.note.contents) + nf->contents_size;