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Enji Cooper
b5b1120e71
r309412 (by imp): dd is currently a bootstrap tool. It really doesn't have any business being a bootstrap tool. However, for reproducible build output, FreeBSD added dd status=none because it was otherwise difficult to suppress the status information, but retain any errors that might happen. There's no real reason that dd has to be a build tool, other than we use status=none unconditional. Remove dd from a bootstrap tool entirely by only using status=none when available. This may also help efforts to build the system on non-FreeBSD hosts as well. r316109: Don't hardcode input files for stage 1/2 bootloaders; use .ALLSRC instead This is a better pattern to follow when creating the bootloaders and doing the relevant space checks to make sure that the sizes aren't exceeded (and thus, copy-pasting is a bit less error prone). r316132: Parameterize out 7680 (15 * 512) as BOOT2SIZE, similar to sys/boot/i386/zfsboot/... This is being done to make it easier to change in the future--this action might be needed sooner rather than later because of gcc 6.3.0 bailing, stating that there is negative free space left (deficit) in the boot2 bootloader.
25 lines
848 B
Makefile
25 lines
848 B
Makefile
# $FreeBSD$
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.include <bsd.own.mk>
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SSP_CFLAGS=
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.if ${MACHINE_CPUARCH} == "arm"
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# Do not generate movt/movw, because the relocation fixup for them does not
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# translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
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# Also, the fpu is not available in a standalone environment.
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.if ${COMPILER_VERSION} < 30800
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CFLAGS.clang+= -mllvm -arm-use-movt=0
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.else
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CFLAGS.clang+= -mno-movt
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.endif
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CFLAGS.clang+= -mfpu=none
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.endif
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# The boot loader build uses dd status=none, where possible, for reproducible
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# build output (since performance varies from run to run). Trouble is that
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# option was recently (10.3) added to FreeBSD and is non-standard. Only use it
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# when this test succeeds rather than require dd to be a bootstrap tool.
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DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
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DD=dd ${DD_NOSTATUS}
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