2e5d5dc936
To make <stdatomic.h> work on MIPS (and ARM) using GCC, we need to provide implementations of the __sync_*() functions. I already added these functions for 4 and 8 byte types to libcompiler-rt some time ago, based on top of <machine/atomic.h>. Unfortunately, <machine/atomic.h> only provides a subset of the features needed to implement <stdatomic.h>. This means that in some cases we had to do compare-and-exchange calls in loops, where a simple ll/sc would suffice. Also implement these functions for 1 and 2 byte types. MIPS only provides ll/sc instructions for 4 and 8 byte types, but this is of course no limitation. We can simply load 4 bytes and use some bitmask tricks to modify only the bytes affected. Discussed on: mips, arch Tested with: QEMU
88 lines
2.6 KiB
Plaintext
88 lines
2.6 KiB
Plaintext
# This file tells config what files go into building a kernel,
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# files marked standard are always included.
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#
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# $FreeBSD$
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#
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# Arch dependent files
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mips/mips/autoconf.c standard
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mips/mips/bus_space_generic.c standard
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mips/mips/bus_space_fdt.c optional fdt
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mips/mips/busdma_machdep.c standard
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mips/mips/cache.c standard
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mips/mips/cache_mipsNN.c standard
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mips/mips/cpu.c standard
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mips/mips/db_disasm.c optional ddb
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mips/mips/db_interface.c optional ddb
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mips/mips/db_trace.c optional ddb
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mips/mips/dump_machdep.c standard
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mips/mips/elf_machdep.c standard
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mips/mips/exception.S standard
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mips/mips/fp.S standard
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mips/mips/freebsd32_machdep.c optional compat_freebsd32
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mips/mips/gdb_machdep.c standard
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mips/mips/in_cksum.c optional inet
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mips/mips/libkern_machdep.c standard
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mips/mips/locore.S standard no-obj
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mips/mips/machdep.c standard
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mips/mips/mem.c optional mem
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mips/mips/minidump_machdep.c standard
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mips/mips/mp_machdep.c optional smp
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mips/mips/mpboot.S optional smp
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mips/mips/nexus.c standard
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mips/mips/pm_machdep.c standard
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mips/mips/pmap.c standard
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mips/mips/ptrace_machdep.c standard
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mips/mips/sc_machdep.c standard
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mips/mips/stack_machdep.c optional ddb | stack
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mips/mips/stdatomic.c standard \
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compile-with "${NORMAL_C:N-Wmissing-prototypes}"
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mips/mips/support.S standard
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mips/mips/swtch.S standard
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mips/mips/sys_machdep.c standard
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mips/mips/tlb.c standard
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mips/mips/trap.c standard
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mips/mips/uio_machdep.c standard
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mips/mips/uma_machdep.c standard
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mips/mips/vm_machdep.c standard
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# misc opt-in bits
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kern/kern_clocksource.c standard
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kern/link_elf_obj.c standard
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kern/subr_dummy_vdso_tc.c standard
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# gcc/clang runtime
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libkern/ffsl.c standard
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libkern/fls.c standard
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libkern/flsl.c standard
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libkern/memmove.c standard
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libkern/ucmpdi2.c optional mips | mipsel
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# cfe support
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dev/cfe/cfe_api.c optional cfe
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dev/cfe/cfe_console.c optional cfe_console
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dev/cfe/cfe_env.c optional cfe_env
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# syscons support
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dev/fb/fb.c optional sc
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dev/kbd/kbd.c optional sc
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dev/syscons/scgfbrndr.c optional sc
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dev/syscons/scterm-teken.c optional sc
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dev/syscons/scvtb.c optional sc
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mips/mips/sc_machdep.c optional sc
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# FDT support
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dev/fdt/fdt_mips.c optional fdt
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dev/uart/uart_cpu_fdt.c optional uart fdt
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# crypto support -- use generic
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crypto/blowfish/bf_enc.c optional crypto | ipsec
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crypto/des/des_enc.c optional crypto | ipsec
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# AP common nvram interface MIPS specific, but maybe should be more generic
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dev/nvram2env/nvram2env.c optional nvram2env
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# hwpmc support
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dev/hwpmc/hwpmc_mips.c optional hwpmc
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dev/hwpmc/hwpmc_mips24k.c optional hwpmc_mips24k
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