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Sat, 04 Jan 2025 06:38:48 -0800 (PST) Received: from localhost ([2400:4050:b783:b00:4952:3c52:120a:27e9]) by smtp.gmail.com with UTF8SMTPSA id d9443c01a7336-219dc962c5esm260927675ad.12.2025.01.04.06.38.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 04 Jan 2025 06:38:48 -0800 (PST) From: Akihiko Odaki Date: Sat, 04 Jan 2025 23:38:34 +0900 Subject: [PATCH v2 1/5] elf: Define note name macros MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250104-elf-v2-1-77dc2e06db4e@daynix.com> References: <20250104-elf-v2-0-77dc2e06db4e@daynix.com> In-Reply-To: <20250104-elf-v2-0-77dc2e06db4e@daynix.com> To: Eric Biederman , Kees Cook , Catalin Marinas , Mark Brown , Dave Martin , Baoquan He , Vivek Goyal , Dave Young Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, kexec@lists.infradead.org, devel@daynix.com, Akihiko Odaki X-Mailer: b4 0.14-dev-fd6e3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250104_063849_853309_334F9272 X-CRM114-Status: GOOD ( 14.20 ) X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org elf.h had a comment saying: > Notes used in ET_CORE. Architectures export some of the arch register > sets using the corresponding note types via the PTRACE_GETREGSET and > PTRACE_SETREGSET requests. > The note name for these types is "LINUX", except NT_PRFPREG that is > named "CORE". However, NT_PRSTATUS is also named "CORE". It is also unclear what "these types" refers to. To fix these problems, define a name for each note type. The added definitions are macros so the kernel and userspace can directly refer to them. Signed-off-by: Akihiko Odaki --- include/uapi/linux/elf.h | 86 ++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 83 insertions(+), 3 deletions(-) diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h index b44069d29cec..014b705b97d7 100644 --- a/include/uapi/linux/elf.h +++ b/include/uapi/linux/elf.h @@ -372,8 +372,6 @@ typedef struct elf64_shdr { * Notes used in ET_CORE. Architectures export some of the arch register sets * using the corresponding note types via the PTRACE_GETREGSET and * PTRACE_SETREGSET requests. - * The note name for these types is "LINUX", except NT_PRFPREG that is named - * "CORE". */ #define NT_PRSTATUS 1 #define NT_PRFPREG 2 @@ -460,9 +458,91 @@ typedef struct elf64_shdr { #define NT_LOONGARCH_HW_BREAK 0xa05 /* LoongArch hardware breakpoint registers */ #define NT_LOONGARCH_HW_WATCH 0xa06 /* LoongArch hardware watchpoint registers */ -/* Note types with note name "GNU" */ +/* Note used in ET_EXEC and ET_DYN. */ #define NT_GNU_PROPERTY_TYPE_0 5 +/* Note names */ +#define NN_PRSTATUS "CORE" +#define NN_PRFPREG "CORE" +#define NN_PRPSINFO "CORE" +#define NN_TASKSTRUCT "CORE" +#define NN_AUXV "CORE" +#define NN_SIGINFO "CORE" +#define NN_FILE "CORE" +#define NN_PRXFPREG "LINUX" +#define NN_PPC_VMX "LINUX" +#define NN_PPC_SPE "LINUX" +#define NN_PPC_VSX "LINUX" +#define NN_PPC_TAR "LINUX" +#define NN_PPC_PPR "LINUX" +#define NN_PPC_DSCR "LINUX" +#define NN_PPC_EBB "LINUX" +#define NN_PPC_PMU "LINUX" +#define NN_PPC_TM_CGPR "LINUX" +#define NN_PPC_TM_CFPR "LINUX" +#define NN_PPC_TM_CVMX "LINUX" +#define NN_PPC_TM_CVSX "LINUX" +#define NN_PPC_TM_SPR "LINUX" +#define NN_PPC_TM_CTAR "LINUX" +#define NN_PPC_TM_CPPR "LINUX" +#define NN_PPC_TM_CDSCR "LINUX" +#define NN_PPC_PKEY "LINUX" +#define NN_PPC_DEXCR "LINUX" +#define NN_PPC_HASHKEYR "LINUX" +#define NN_386_TLS "LINUX" +#define NN_386_IOPERM "LINUX" +#define NN_X86_XSTATE "LINUX" +#define NN_X86_SHSTK "LINUX" +#define NN_X86_XSAVE_LAYOUT "LINUX" +#define NN_S390_HIGH_GPRS "LINUX" +#define NN_S390_TIMER "LINUX" +#define NN_S390_TODCMP "LINUX" +#define NN_S390_TODPREG "LINUX" +#define NN_S390_CTRS "LINUX" +#define NN_S390_PREFIX "LINUX" +#define NN_S390_LAST_BREAK "LINUX" +#define NN_S390_SYSTEM_CALL "LINUX" +#define NN_S390_TDB "LINUX" +#define NN_S390_VXRS_LOW "LINUX" +#define NN_S390_VXRS_HIGH "LINUX" +#define NN_S390_GS_CB "LINUX" +#define NN_S390_GS_BC "LINUX" +#define NN_S390_RI_CB "LINUX" +#define NN_S390_PV_CPU_DATA "LINUX" +#define NN_ARM_VFP "LINUX" +#define NN_ARM_TLS "LINUX" +#define NN_ARM_HW_BREAK "LINUX" +#define NN_ARM_HW_WATCH "LINUX" +#define NN_ARM_SYSTEM_CALL "LINUX" +#define NN_ARM_SVE "LINUX" +#define NN_ARM_PAC_MASK "LINUX" +#define NN_ARM_PACA_KEYS "LINUX" +#define NN_ARM_PACG_KEYS "LINUX" +#define NN_ARM_TAGGED_ADDR_CTRL "LINUX" +#define NN_ARM_PAC_ENABLED_KEYS "LINUX" +#define NN_ARM_SSVE "LINUX" +#define NN_ARM_ZA "LINUX" +#define NN_ARM_ZT "LINUX" +#define NN_ARM_FPMR "LINUX" +#define NN_ARM_POE "LINUX" +#define NN_ARM_GCS "LINUX" +#define NN_ARC_V2 "LINUX" +#define NN_VMCOREDD "LINUX" +#define NN_MIPS_DSP "LINUX" +#define NN_MIPS_FP_MODE "LINUX" +#define NN_MIPS_MSA "LINUX" +#define NN_RISCV_CSR "LINUX" +#define NN_RISCV_VECTOR "LINUX" +#define NN_RISCV_TAGGED_ADDR_CTRL "LINUX" +#define NN_LOONGARCH_CPUCFG "LINUX" +#define NN_LOONGARCH_CSR "LINUX" +#define NN_LOONGARCH_LSX "LINUX" +#define NN_LOONGARCH_LASX "LINUX" +#define NN_LOONGARCH_LBT "LINUX" +#define NN_LOONGARCH_HW_BREAK "LINUX" +#define NN_LOONGARCH_HW_WATCH "LINUX" +#define NN_GNU_PROPERTY_TYPE_0 "GNU" + /* Note header in a PT_NOTE section */ typedef struct elf32_note { Elf32_Word n_namesz; /* Name size */ -- 2.47.1