From: Yury Norov <ynorov@caviumnetworks.com> To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>, Catalin Marinas <catalin.marinas@arm.com> Cc: Yury Norov <ynorov@caviumnetworks.com>, Andrew Pinski <pinskia@gmail.com>, Andrew Pinski <Andrew.Pinski@caviumnetworks.com>, Adam Borowski <kilobyte@angband.pl>, Chris Metcalf <cmetcalf@ezchip.com>, Steve Ellcey <sellcey@caviumnetworks.com>, Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>, Ramana Radhakrishnan <ramana.gcc@googlemail.com>, Florian Weimer <fweimer@redhat.com>, Bamvor Zhangjian <bamvor.zhangjian@huawei.com>, Andreas Schwab <schwab@suse.de>, Chris Metcalf <cmetcalf@mellanox.com>, Heiko Carstens <heiko.carstens@de.ibm.com>, schwidefsky@de.ibm.com, broonie@kernel.org, Joseph Myers <joseph@codesourcery.com>, christoph.muellner@theobroma-systems.com, szabolcs.nagy@arm.com, klimov.linux@gmail.com, Nathan_Lynch@mentor.com, agraf@suse.de, Prasun.Kapoor@caviumnetworks.com, geert@linux-m68k.org, philipp.tomsich@theobroma-systems.com, manuel.montezelo@gmail.com, linyongting@huawei.com, davem@davemloft.net, zhouchengming1@huawei.com, Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Subject: [PATCH 12/20] arm64: ilp32: introduce binfmt_ilp32.c Date: Thu, 2 Mar 2017 00:49:20 +0530 [thread overview] Message-ID: <1488395968-14313-13-git-send-email-ynorov@caviumnetworks.com> (raw) In-Reply-To: <1488395968-14313-1-git-send-email-ynorov@caviumnetworks.com> Like binfmt_elf32.c, binfmt_ilp32.c is needed to handle ILP32 binaries Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> --- arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/binfmt_ilp32.c | 85 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 86 insertions(+) create mode 100644 arch/arm64/kernel/binfmt_ilp32.c diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile index aeaf474..b6f14a8 100644 --- a/arch/arm64/kernel/Makefile +++ b/arch/arm64/kernel/Makefile @@ -29,6 +29,7 @@ $(obj)/%.stub.o: $(obj)/%.o FORCE arm64-obj-$(CONFIG_AARCH32_EL0) += sys32.o kuser32.o signal32.o \ sys_compat.o entry32.o binfmt_elf32.o +arm64-obj-$(CONFIG_ARM64_ILP32) += binfmt_ilp32.o arm64-obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o entry-ftrace.o arm64-obj-$(CONFIG_MODULES) += arm64ksyms.o module.o arm64-obj-$(CONFIG_ARM64_MODULE_PLTS) += module-plts.o diff --git a/arch/arm64/kernel/binfmt_ilp32.c b/arch/arm64/kernel/binfmt_ilp32.c new file mode 100644 index 0000000..bb31325 --- /dev/null +++ b/arch/arm64/kernel/binfmt_ilp32.c @@ -0,0 +1,85 @@ +/* + * Support for ILP32 Linux/aarch64 ELF binaries. + */ +#undef CONFIG_AARCH32_EL0 +#define compat_elf_gregset_t elf_gregset_t + +#include <linux/elfcore-compat.h> +#include <linux/time.h> + +#undef ELF_CLASS +#define ELF_CLASS ELFCLASS32 + +#undef elfhdr +#undef elf_phdr +#undef elf_shdr +#undef elf_note +#undef elf_addr_t +#define elfhdr elf32_hdr +#define elf_phdr elf32_phdr +#define elf_shdr elf32_shdr +#define elf_note elf32_note +#define elf_addr_t Elf32_Addr + +/* + * Some data types as stored in coredump. + */ +#define user_long_t compat_long_t +#define user_siginfo_t compat_siginfo_t +#define copy_siginfo_to_user copy_siginfo_to_user32 + +/* + * The machine-dependent core note format types are defined in elfcore-compat.h, + * which requires asm/elf.h to define compat_elf_gregset_t et al. + */ +#define elf_prstatus compat_elf_prstatus +#define elf_prpsinfo compat_elf_prpsinfo + +/* AARCH64 ILP32 EABI. */ +#undef elf_check_arch +#define elf_check_arch(x) (((x)->e_machine == EM_AARCH64) \ + && (x)->e_ident[EI_CLASS] == ELFCLASS32) + +#undef SET_PERSONALITY +#define SET_PERSONALITY(ex) \ +do { \ + set_bit(TIF_32BIT, ¤t->mm->context.flags); \ + set_thread_flag(TIF_32BIT_AARCH64); \ + clear_thread_flag(TIF_32BIT); \ +} while (0) + +#undef ARCH_DLINFO +#define ARCH_DLINFO \ +do { \ + NEW_AUX_ENT(AT_SYSINFO_EHDR, \ + (elf_addr_t)(long)current->mm->context.vdso); \ +} while (0) + +#undef ELF_PLATFORM +#ifdef __AARCH64EB__ +#define ELF_PLATFORM ("aarch64_be:ilp32") +#else +#define ELF_PLATFORM ("aarch64:ilp32") +#endif + +#undef ELF_ET_DYN_BASE +#define ELF_ET_DYN_BASE COMPAT_ELF_ET_DYN_BASE + +#undef ELF_HWCAP +#undef ELF_HWCAP2 +#define ELF_HWCAP ((u32) elf_hwcap) +#define ELF_HWCAP2 ((u32) (elf_hwcap >> 32)) + +/* + * Rename a few of the symbols that binfmt_elf.c will define. + * These are all local so the names don't really matter, but it + * might make some debugging less confusing not to duplicate them. + */ +#define elf_format compat_elf_format +#define init_elf_binfmt init_compat_elf_binfmt +#define exit_elf_binfmt exit_compat_elf_binfmt + +#undef ns_to_timeval +#define ns_to_timeval ns_to_compat_timeval + +#include "../../../fs/binfmt_elf.c" -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: ynorov@caviumnetworks.com (Yury Norov) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 12/20] arm64: ilp32: introduce binfmt_ilp32.c Date: Thu, 2 Mar 2017 00:49:20 +0530 [thread overview] Message-ID: <1488395968-14313-13-git-send-email-ynorov@caviumnetworks.com> (raw) In-Reply-To: <1488395968-14313-1-git-send-email-ynorov@caviumnetworks.com> Like binfmt_elf32.c, binfmt_ilp32.c is needed to handle ILP32 binaries Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> --- arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/binfmt_ilp32.c | 85 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 86 insertions(+) create mode 100644 arch/arm64/kernel/binfmt_ilp32.c diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile index aeaf474..b6f14a8 100644 --- a/arch/arm64/kernel/Makefile +++ b/arch/arm64/kernel/Makefile @@ -29,6 +29,7 @@ $(obj)/%.stub.o: $(obj)/%.o FORCE arm64-obj-$(CONFIG_AARCH32_EL0) += sys32.o kuser32.o signal32.o \ sys_compat.o entry32.o binfmt_elf32.o +arm64-obj-$(CONFIG_ARM64_ILP32) += binfmt_ilp32.o arm64-obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o entry-ftrace.o arm64-obj-$(CONFIG_MODULES) += arm64ksyms.o module.o arm64-obj-$(CONFIG_ARM64_MODULE_PLTS) += module-plts.o diff --git a/arch/arm64/kernel/binfmt_ilp32.c b/arch/arm64/kernel/binfmt_ilp32.c new file mode 100644 index 0000000..bb31325 --- /dev/null +++ b/arch/arm64/kernel/binfmt_ilp32.c @@ -0,0 +1,85 @@ +/* + * Support for ILP32 Linux/aarch64 ELF binaries. + */ +#undef CONFIG_AARCH32_EL0 +#define compat_elf_gregset_t elf_gregset_t + +#include <linux/elfcore-compat.h> +#include <linux/time.h> + +#undef ELF_CLASS +#define ELF_CLASS ELFCLASS32 + +#undef elfhdr +#undef elf_phdr +#undef elf_shdr +#undef elf_note +#undef elf_addr_t +#define elfhdr elf32_hdr +#define elf_phdr elf32_phdr +#define elf_shdr elf32_shdr +#define elf_note elf32_note +#define elf_addr_t Elf32_Addr + +/* + * Some data types as stored in coredump. + */ +#define user_long_t compat_long_t +#define user_siginfo_t compat_siginfo_t +#define copy_siginfo_to_user copy_siginfo_to_user32 + +/* + * The machine-dependent core note format types are defined in elfcore-compat.h, + * which requires asm/elf.h to define compat_elf_gregset_t et al. + */ +#define elf_prstatus compat_elf_prstatus +#define elf_prpsinfo compat_elf_prpsinfo + +/* AARCH64 ILP32 EABI. */ +#undef elf_check_arch +#define elf_check_arch(x) (((x)->e_machine == EM_AARCH64) \ + && (x)->e_ident[EI_CLASS] == ELFCLASS32) + +#undef SET_PERSONALITY +#define SET_PERSONALITY(ex) \ +do { \ + set_bit(TIF_32BIT, ¤t->mm->context.flags); \ + set_thread_flag(TIF_32BIT_AARCH64); \ + clear_thread_flag(TIF_32BIT); \ +} while (0) + +#undef ARCH_DLINFO +#define ARCH_DLINFO \ +do { \ + NEW_AUX_ENT(AT_SYSINFO_EHDR, \ + (elf_addr_t)(long)current->mm->context.vdso); \ +} while (0) + +#undef ELF_PLATFORM +#ifdef __AARCH64EB__ +#define ELF_PLATFORM ("aarch64_be:ilp32") +#else +#define ELF_PLATFORM ("aarch64:ilp32") +#endif + +#undef ELF_ET_DYN_BASE +#define ELF_ET_DYN_BASE COMPAT_ELF_ET_DYN_BASE + +#undef ELF_HWCAP +#undef ELF_HWCAP2 +#define ELF_HWCAP ((u32) elf_hwcap) +#define ELF_HWCAP2 ((u32) (elf_hwcap >> 32)) + +/* + * Rename a few of the symbols that binfmt_elf.c will define. + * These are all local so the names don't really matter, but it + * might make some debugging less confusing not to duplicate them. + */ +#define elf_format compat_elf_format +#define init_elf_binfmt init_compat_elf_binfmt +#define exit_elf_binfmt exit_compat_elf_binfmt + +#undef ns_to_timeval +#define ns_to_timeval ns_to_compat_timeval + +#include "../../../fs/binfmt_elf.c" -- 2.7.4
next prev parent reply other threads:[~2017-03-01 19:25 UTC|newest] Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-03-01 19:19 [PATCH v7 resend 00/20] ILP32 for ARM64 Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 01/20] compat ABI: use non-compat openat and open_by_handle_at variants Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 02/20] 32-bit ABI: introduce ARCH_32BIT_OFF_T config option Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 03/20] asm-generic: Drop getrlimit and setrlimit syscalls from default list Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-10 18:09 ` Will Deacon 2017-03-10 18:09 ` Will Deacon 2017-03-10 18:09 ` Will Deacon 2017-03-01 19:19 ` [PATCH 04/20] arm64: ilp32: add documentation on the ILP32 ABI for ARM64 Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 05/20] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 06/20] arm64: ensure the kernel is compiled for LP64 Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 07/20] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 08/20] thread: move thread bits accessors to separated file Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 09/20] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 10/20] arm64: ilp32: add is_ilp32_compat_{task,thread} and TIF_32BIT_AARCH64 Yury Norov 2017-03-01 19:19 ` [PATCH 10/20] arm64: ilp32: add is_ilp32_compat_{task, thread} " Yury Norov 2017-03-01 19:19 ` [PATCH 11/20] arm64: introduce binfmt_elf32.c Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` Yury Norov [this message] 2017-03-01 19:19 ` [PATCH 12/20] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov 2017-03-01 19:19 ` [PATCH 13/20] arm64: ilp32: share aarch32 syscall handlers Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 14/20] arm64: ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 15/20] arm64: signal: share lp64 signal routines to ilp32 Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 16/20] arm64: signal32: move ilp32 and aarch32 common code to separated file Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 17/20] arm64: ilp32: introduce ilp32-specific handlers for sigframe and ucontext Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 18/20] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 19/20] arm64:ilp32: add vdso-ilp32 and use for signal return Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-03-01 19:19 ` [PATCH 20/20] arm64:ilp32: add ARM64_ILP32 to Kconfig Yury Norov 2017-03-01 19:19 ` Yury Norov 2017-04-10 19:47 ` [PATCH v7 resend 00/20] ILP32 for ARM64 Yury Norov 2017-04-10 19:47 ` Yury Norov 2017-04-11 11:33 ` Catalin Marinas 2017-04-11 11:33 ` Catalin Marinas 2017-04-11 11:54 ` Andreas Schwab 2017-04-11 11:54 ` Andreas Schwab 2017-04-11 13:33 ` Yury Norov 2017-04-11 13:33 ` Yury Norov 2017-04-11 18:36 ` Yury Norov 2017-04-11 18:36 ` Yury Norov 2017-04-11 18:42 ` Florian Weimer 2017-04-11 18:42 ` Florian Weimer 2017-04-11 20:52 ` Yury Norov 2017-04-11 20:52 ` Yury Norov -- strict thread matches above, loose matches on Subject: below -- 2017-06-19 15:49 [PATCH v8 " Yury Norov 2017-06-19 15:49 ` [PATCH 12/20] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov 2017-06-19 15:49 ` Yury Norov 2017-06-04 11:59 Yury Norov 2017-06-04 12:00 ` [PATCH 12/20] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov 2017-06-04 12:00 ` Yury Norov 2017-01-09 11:29 [PATCH v7 00/20] ILP32 for ARM64 Yury Norov 2017-01-09 11:29 ` [PATCH 12/20] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov 2017-01-09 11:29 ` Yury Norov
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