1e71ca95cSGerald Jelinek#
2e71ca95cSGerald Jelinek# CDDL HEADER START
3e71ca95cSGerald Jelinek#
4e71ca95cSGerald Jelinek# The contents of this file are subject to the terms of the
5e71ca95cSGerald Jelinek# Common Development and Distribution License (the "License").
6e71ca95cSGerald Jelinek# You may not use this file except in compliance with the License.
7e71ca95cSGerald Jelinek#
8e71ca95cSGerald Jelinek# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9e71ca95cSGerald Jelinek# or http://www.opensolaris.org/os/licensing.
10e71ca95cSGerald Jelinek# See the License for the specific language governing permissions
11e71ca95cSGerald Jelinek# and limitations under the License.
12e71ca95cSGerald Jelinek#
13e71ca95cSGerald Jelinek# When distributing Covered Code, include this CDDL HEADER in each
14e71ca95cSGerald Jelinek# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15e71ca95cSGerald Jelinek# If applicable, add the following below this CDDL HEADER, with the
16e71ca95cSGerald Jelinek# fields enclosed by brackets "[]" replaced with your own identifying
17e71ca95cSGerald Jelinek# information: Portions Copyright [yyyy] [name of copyright owner]
18e71ca95cSGerald Jelinek#
19e71ca95cSGerald Jelinek# CDDL HEADER END
20e71ca95cSGerald Jelinek#
21e71ca95cSGerald Jelinek#
2280e2ca85S# Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
234ba5b961SDan Kimmel# Copyright (c) 2016 by Delphix. All rights reserved.
24f3655454SJohn Levon# Copyright 2020 Joyent, Inc.
25e71ca95cSGerald Jelinek#
26e71ca95cSGerald Jelinek
27e71ca95cSGerald JelinekLIBRARY =	s10_brand.a
28e71ca95cSGerald JelinekVERS =		.1
29bdf0047cSRoger A. FaulknerCOBJS =		s10_brand.o s10_deleted.o s10_signal.o
3080e2ca85SASOBJS =	crt.o handler.o runexe.o brand_util.o
3180e2ca85SOBJECTS =	$(COBJS)
32e71ca95cSGerald Jelinek
33e71ca95cSGerald Jelinekinclude ../../Makefile.s10
34e71ca95cSGerald Jelinekinclude $(SRC)/lib/Makefile.lib
35e71ca95cSGerald Jelinek
36e71ca95cSGerald JelinekSRCDIR =	../common
37e71ca95cSGerald JelinekUTSBASE =	$(SRC)/uts
38e71ca95cSGerald Jelinek
39e71ca95cSGerald JelinekLIBS =		$(DYNLIB)
40e71ca95cSGerald JelinekCSRCS =		$(COBJS:%o=../common/%c)
4180e2ca85SSHAREDOBJS =	$(ASOBJS:%o=$(ISAOBJDIR)/%o)
4280e2ca85SSRCS =		$(CSRCS)
43e71ca95cSGerald Jelinek
44e71ca95cSGerald Jelinek#
45e71ca95cSGerald Jelinek# Note that the architecture specific makefiles MUST update DYNFLAGS to
46e71ca95cSGerald Jelinek# explicitly specify an interpreter for the brand emulation library so that we
47e71ca95cSGerald Jelinek# use /lib/ld.so.1 or /lib/64/ld.so.1, which in a s10 zone is the Solaris 10
48e71ca95cSGerald Jelinek# linker.  This is different from some other brands where the linker that is
49e71ca95cSGerald Jelinek# used is the native system linker (/.SUNWnative/.../ld.so.1).  We have to do
50e71ca95cSGerald Jelinek# this because the linker has a very incestuous relationship with libc and we
51e71ca95cSGerald Jelinek# don't want to use the native linker with the s10 version of libc.  (This may
52e71ca95cSGerald Jelinek# come as a surprise to the reader, but when our library is loaded it get's
53e71ca95cSGerald Jelinek# linked against the s10 version of libc.)  Although the linker interfaces are
54e71ca95cSGerald Jelinek# normally stable, there are examples, such as with the solaris8 brand, where
55e71ca95cSGerald Jelinek# we could not combine the brand's libc with the native linker.  Since we want
56e71ca95cSGerald Jelinek# to run in a known configuration, we use the S10 libc/linker combination.
574ba5b961SDan Kimmel#
58e71ca95cSGerald Jelinek# There is one more non-obvious side effect of using the s10 linker that
59e71ca95cSGerald Jelinek# should be mentioned.  Since the linker is used to setup processes before
60e71ca95cSGerald Jelinek# libc is loaded, it makes system calls directly (ie avoiding libc), and
61e71ca95cSGerald Jelinek# it makes these system calls before our library has been initialized.
62e71ca95cSGerald Jelinek# Since our library hasn't been initialized yet, there's no way for us
63e71ca95cSGerald Jelinek# to intercept and emulate any of those system calls.  So if any of those
64e71ca95cSGerald Jelinek# system calls ever change in the native code such that they break the s10
65e71ca95cSGerald Jelinek# linker then we're kinda screwed and will need to re-visit the current
66e71ca95cSGerald Jelinek# solution.  (The likely solution then will probably be to start using the
67e71ca95cSGerald Jelinek# native linker with our brand emulation library.)
68e71ca95cSGerald Jelinek#
69e71ca95cSGerald Jelinek# Note that we make sure to link our brand emulation library
70e71ca95cSGerald Jelinek# libmapmalloc.  This is required because in most cases there will be two
71e71ca95cSGerald Jelinek# copies of libc in the same process and we don't want them to fight over
72e71ca95cSGerald Jelinek# the heap.  So for our brand library we link against libmapmalloc so that
73e71ca95cSGerald Jelinek# if we (our or copy of libc) try to allocate any memory it will be done
74e71ca95cSGerald Jelinek# via mmap() instead of brk().
75e71ca95cSGerald Jelinek#
76e71ca95cSGerald JelinekCPPFLAGS +=	-D_REENTRANT -U_ASM \
7780e2ca85S		-I. -I$(BRAND_SHARED)/brand/sys -I../sys \
7880e2ca85S		-I$(UTSBASE)/common/brand/solaris10 \
79e71ca95cSGerald Jelinek		-I$(SRC)/uts/common/fs/zfs
80e71ca95cSGerald JelinekCFLAGS +=	$(CCVERBOSE)
81e71ca95cSGerald Jelinek# Needed to handle zfs include files
82bd0ce624SYuri PankovCSTD=	$(CSTD_GNU99)
83e71ca95cSGerald JelinekDYNFLAGS +=	$(DYNFLAGS_$(CLASS))
84e71ca95cSGerald JelinekDYNFLAGS +=	$(BLOCAL) $(ZNOVERSION) -Wl,-e_start
85f3655454SJohn LevonLDLIBS +=	-lmapmalloc -lc
86e71ca95cSGerald Jelinek
87*ba32d0faSKlaus Ziegler#
88*ba32d0faSKlaus Ziegler# Disable stack protection as we're running in an s10 context.
89*ba32d0faSKlaus Ziegler#
90*ba32d0faSKlaus ZieglerSTACKPROTECT = none
91*ba32d0faSKlaus Ziegler
92d3b5f563SJohn LevonCERRWARN +=	$(CNOWARN_UNINIT)
937014882cSRichard Lowe
9480e2ca85S$(LIBS):= PICS += $(SHAREDOBJS)
9580e2ca85S
96e71ca95cSGerald Jelinek.KEEP_STATE:
97e71ca95cSGerald Jelinek
98e71ca95cSGerald Jelinekall: $(LIBS)
99e71ca95cSGerald Jelinek
100e71ca95cSGerald Jelinekinclude $(SRC)/lib/Makefile.targ
101