Builds now use "BUILDSEED" so that c++ binaries are reproduceable.
By default BUILDSEED is set to NetBSD-{majorversion} -- a -S flag may
be used to change it.
Discussed on tech-toolchain.
This commit is contained in:
perry
parent
5e89a5a8f1
commit
b1d7b7c21a
11
BUILDING
11
BUILDING
|
|
@ -130,6 +130,14 @@ CONFIGURATION
|
|||
configuration file in order to set additional build parame-
|
||||
ters, such as compiler flags.
|
||||
|
||||
BUILDSEED GCC uses random numbers when compiling C++ code. This vari-
|
||||
able seeds the gcc random number generator using the -fran-
|
||||
dom-seed flag with this value. By default, it is set to
|
||||
NetBSD-(majorversion). Using a fixed value causes C++ bina-
|
||||
ries to be the same when built from the same sources. Addi-
|
||||
tional information is available in the GCC documentation of
|
||||
-frandom-seed.
|
||||
|
||||
DESTDIR Directory to contain the built NetBSD system. If set, spe-
|
||||
cial options are passed to the compilation tools to prevent
|
||||
their default use of the host system's /usr/include,
|
||||
|
|
@ -752,6 +760,9 @@ BUILDING
|
|||
(provides a clean starting point). This will skip deleting
|
||||
DESTDIR if building on a native system to the root directory.
|
||||
|
||||
-S seed Change the value of BUILDSEED to seed. This should rarely be
|
||||
necessary.
|
||||
|
||||
-T tools Set the value of TOOLDIR to tools. If a relative path is spec-
|
||||
ified, it will be converted to an absolute path before being
|
||||
used. If set, the bootstrap ``make'' will only be rebuilt if
|
||||
|
|
|
|||
23
build.sh
23
build.sh
|
|
@ -1,5 +1,5 @@
|
|||
#! /usr/bin/env sh
|
||||
# $NetBSD: build.sh,v 1.189 2008/06/27 21:38:36 dyoung Exp $
|
||||
# $NetBSD: build.sh,v 1.190 2008/08/05 19:43:33 perry Exp $
|
||||
#
|
||||
# Copyright (c) 2001-2005 The NetBSD Foundation, Inc.
|
||||
# All rights reserved.
|
||||
|
|
@ -241,6 +241,10 @@ initdefaults()
|
|||
#
|
||||
DISTRIBVER="$(${HOST_SH} ${TOP}/sys/conf/osrelease.sh)"
|
||||
|
||||
# Set the BUILDSEED to NetBSD-"N"
|
||||
#
|
||||
setmakeenv BUILDSEED "NetBSD-$(${HOST_SH} ${TOP}/sys/conf/osrelease.sh -m)"
|
||||
|
||||
# Set various environment variables to known defaults,
|
||||
# to minimize (cross-)build problems observed "in the field".
|
||||
#
|
||||
|
|
@ -509,9 +513,10 @@ usage()
|
|||
fi
|
||||
cat <<_usage_
|
||||
|
||||
Usage: ${progname} [-EnorUux] [-a arch] [-B buildid] [-C cdextras] [-D dest]
|
||||
[-j njob] [-M obj] [-m mach] [-N noisy] [-O obj] [-R release]
|
||||
[-T tools] [-V var=[value]] [-w wrapper] [-X x11src] [-Z var]
|
||||
Usage: ${progname} [-EnorUux] [-a arch] [-B buildid] [-C cdextras]
|
||||
[-D dest] [-j njob] [-M obj] [-m mach] [-N noisy]
|
||||
[-O obj] [-R release] [-S seed] [-T tools]
|
||||
[-V var=[value]] [-w wrapper] [-X x11src] [-Z var]
|
||||
operation [...]
|
||||
|
||||
Build operations (all imply "obj" and "tools"):
|
||||
|
|
@ -562,6 +567,7 @@ Usage: ${progname} [-EnorUux] [-a arch] [-B buildid] [-C cdextras] [-D dest]
|
|||
-o Set MKOBJDIRS=no; do not create objdirs at start of build.
|
||||
-R release Set RELEASEDIR to release. [Default: releasedir]
|
||||
-r Remove contents of TOOLDIR and DESTDIR before building.
|
||||
-S seed Set BUILDSEED to seed. [Default: NetBSD-majorversion]
|
||||
-T tools Set TOOLDIR to tools. If unset, and TOOLDIR is not set in
|
||||
the environment, ${toolprefix}make will be (re)built unconditionally.
|
||||
-U Set MKUNPRIVED=yes; build without requiring root privileges,
|
||||
|
|
@ -581,7 +587,7 @@ _usage_
|
|||
|
||||
parseoptions()
|
||||
{
|
||||
opts='a:B:bC:D:dEhi:j:k:M:m:N:nO:oR:rT:tUuV:w:xX:Z:'
|
||||
opts='a:B:bC:D:dEhi:j:k:M:m:N:nO:oR:rS:T:tUuV:w:xX:Z:'
|
||||
opt_a=no
|
||||
|
||||
if type getopts >/dev/null 2>&1; then
|
||||
|
|
@ -707,6 +713,11 @@ parseoptions()
|
|||
do_rebuildmake=true
|
||||
;;
|
||||
|
||||
-S)
|
||||
eval ${optargcmd}
|
||||
setmakeenv BUILDSEED "${OPTARG}"
|
||||
;;
|
||||
|
||||
-T)
|
||||
eval ${optargcmd}; resolvepath
|
||||
TOOLDIR="${OPTARG}"
|
||||
|
|
@ -1141,7 +1152,7 @@ createmakewrapper()
|
|||
eval cat <<EOF ${makewrapout}
|
||||
#! ${HOST_SH}
|
||||
# Set proper variables to allow easy "make" building of a NetBSD subtree.
|
||||
# Generated from: \$NetBSD: build.sh,v 1.189 2008/06/27 21:38:36 dyoung Exp $
|
||||
# Generated from: \$NetBSD: build.sh,v 1.190 2008/08/05 19:43:33 perry Exp $
|
||||
# with these arguments: ${_args}
|
||||
#
|
||||
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
.\" $NetBSD: BUILDING.mdoc,v 1.59 2008/04/30 13:10:49 martin Exp $
|
||||
.\" $NetBSD: BUILDING.mdoc,v 1.60 2008/08/05 19:43:33 perry Exp $
|
||||
.\"
|
||||
.\" Copyright (c) 2001-2008 The NetBSD Foundation, Inc.
|
||||
.\" All rights reserved.
|
||||
|
|
@ -289,6 +289,16 @@ object directory names, and can be consulted in the
|
|||
configuration file in order to set additional build parameters,
|
||||
such as compiler flags.
|
||||
.
|
||||
.It Sy BUILDSEED
|
||||
GCC uses random numbers when compiling C++ code.
|
||||
This variable seeds the gcc random number generator using
|
||||
the -frandom-seed flag with this value.
|
||||
By default, it is set to NetBSD-(majorversion).
|
||||
Using a fixed value causes C++ binaries to be the same when
|
||||
built from the same sources.
|
||||
Additional information is available in the GCC
|
||||
documentation of -frandom-seed.
|
||||
.
|
||||
.It Sy DESTDIR
|
||||
Directory to contain the built
|
||||
.Nx
|
||||
|
|
@ -1438,6 +1448,13 @@ This will skip deleting
|
|||
.Sy DESTDIR
|
||||
if building on a native system to the root directory.
|
||||
.
|
||||
.It Fl S Ar seed
|
||||
Change the value of
|
||||
.Sy BUILDSEED
|
||||
to
|
||||
.Ar seed .
|
||||
This should rarely be necessary.
|
||||
.
|
||||
.It Fl T Ar tools
|
||||
Set the value of
|
||||
.Sy TOOLDIR
|
||||
|
|
|
|||
Loading…
Reference in New Issue