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7eb6369d7a
The RISC-V port supports the rv32i and rv64i base ISAs, but provides no
mechanism to run 32-bit userspace on 64-bit systems. This adds that
support, via the COMPAT framework. As the RISC-V ISAs (and uABIs) were
developed concurrently, the resulting compat support is mostly generic.
This includes a handful of cleanups to the generic compat infrastructure
to more cleanly support RISC-V, followed by the RISC-V implementation.
* palmer/riscv-compat:
riscv: compat: Add COMPAT Kbuild skeletal support
riscv: compat: ptrace: Add compat_arch_ptrace implement
riscv: compat: signal: Add rt_frame implementation
riscv: compat: vdso: Add setup additional pages implementation
riscv: compat: vdso: Add COMPAT_VDSO base code implementation
riscv: compat: Add hw capability check for elf
riscv: compat: Add elf.h implementation
riscv: compat: process: Add UXL_32 support in start_thread
riscv: compat: syscall: Add entry.S implementation
riscv: compat: syscall: Add compat_sys_call_table implementation
riscv: compat: Support TASK_SIZE for compat mode
riscv: compat: Add basic compat data type implementation
riscv: Fixup difference with defconfig
syscalls: compat: Fix the missing part for __SYSCALL_COMPAT
asm-generic: compat: Cleanup duplicate definitions
fs: stat: compat: Add __ARCH_WANT_COMPAT_STAT
arch: Add SYSVIPC_COMPAT for all architectures
compat: consolidate the compat_flock{,64} definition
uapi: always define F_GETLK64/F_SETLK64/F_SETLKW64 in fcntl.h
uapi: simplify __ARCH_FLOCK{,64}_PAD a little
90 lines
2.3 KiB
Makefile
90 lines
2.3 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Makefile for the RISC-V Linux kernel
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#
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ifdef CONFIG_FTRACE
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CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_patch.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_sbi.o = $(CC_FLAGS_FTRACE)
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endif
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CFLAGS_syscall_table.o += $(call cc-option,-Wno-override-init,)
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ifdef CONFIG_KEXEC
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AFLAGS_kexec_relocate.o := -mcmodel=medany $(call cc-option,-mno-relax)
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endif
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# cmodel=medany and notrace when patching early
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ifdef CONFIG_RISCV_ALTERNATIVE_EARLY
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CFLAGS_alternative.o := -mcmodel=medany
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CFLAGS_cpufeature.o := -mcmodel=medany
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ifdef CONFIG_FTRACE
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CFLAGS_REMOVE_alternative.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_cpufeature.o = $(CC_FLAGS_FTRACE)
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endif
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ifdef CONFIG_KASAN
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KASAN_SANITIZE_alternative.o := n
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KASAN_SANITIZE_cpufeature.o := n
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endif
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endif
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extra-y += head.o
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extra-y += vmlinux.lds
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obj-y += soc.o
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obj-$(CONFIG_RISCV_ALTERNATIVE) += alternative.o
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obj-y += cpu.o
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obj-y += cpufeature.o
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obj-y += entry.o
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obj-y += irq.o
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obj-y += process.o
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obj-y += ptrace.o
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obj-y += reset.o
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obj-y += setup.o
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obj-y += signal.o
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obj-y += syscall_table.o
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obj-y += sys_riscv.o
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obj-y += time.o
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obj-y += traps.o
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obj-y += riscv_ksyms.o
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obj-y += stacktrace.o
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obj-y += cacheinfo.o
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obj-y += patch.o
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obj-y += probes/
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obj-$(CONFIG_MMU) += vdso.o vdso/
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obj-$(CONFIG_RISCV_M_MODE) += traps_misaligned.o
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obj-$(CONFIG_FPU) += fpu.o
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obj-$(CONFIG_SMP) += smpboot.o
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_SMP) += cpu_ops.o
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obj-$(CONFIG_RISCV_BOOT_SPINWAIT) += cpu_ops_spinwait.o
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obj-$(CONFIG_MODULES) += module.o
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obj-$(CONFIG_MODULE_SECTIONS) += module-sections.o
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obj-$(CONFIG_CPU_PM) += suspend_entry.o suspend.o
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obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o
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obj-$(CONFIG_DYNAMIC_FTRACE) += mcount-dyn.o
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obj-$(CONFIG_TRACE_IRQFLAGS) += trace_irq.o
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obj-$(CONFIG_PERF_EVENTS) += perf_callchain.o
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obj-$(CONFIG_HAVE_PERF_REGS) += perf_regs.o
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obj-$(CONFIG_RISCV_SBI) += sbi.o
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ifeq ($(CONFIG_RISCV_SBI), y)
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obj-$(CONFIG_SMP) += cpu_ops_sbi.o
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endif
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obj-$(CONFIG_HOTPLUG_CPU) += cpu-hotplug.o
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obj-$(CONFIG_KGDB) += kgdb.o
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obj-$(CONFIG_KEXEC) += kexec_relocate.o crash_save_regs.o machine_kexec.o
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obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
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obj-$(CONFIG_JUMP_LABEL) += jump_label.o
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obj-$(CONFIG_EFI) += efi.o
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obj-$(CONFIG_COMPAT) += compat_syscall_table.o
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obj-$(CONFIG_COMPAT) += compat_signal.o
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obj-$(CONFIG_COMPAT) += compat_vdso/
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