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authorRik Faith <faith@alephnull.com>2000-01-13 15:03:41 +0000
committerRik Faith <faith@alephnull.com>2000-01-13 15:03:41 +0000
commit9a838857e1a271bd13881c2cd2d058072654dd12 (patch)
treee2198d2da1bd622ff45d761c1c6d903384e27b34
parentaa724a52b9e3b5fa6a768629e2d403288432b7a8 (diff)
Add new code to do SMP/MODVERSIONS detection for more distributions
-rw-r--r--linux/Makefile.linux63
-rw-r--r--linux/picker.c12
2 files changed, 44 insertions, 31 deletions
diff --git a/linux/Makefile.linux b/linux/Makefile.linux
index 95fe7585..2b3ccab7 100644
--- a/linux/Makefile.linux
+++ b/linux/Makefile.linux
@@ -1,6 +1,6 @@
# Makefile -- For the Direct Rendering Manager module (drm)
# Created: Mon Jan 4 09:26:53 1999 by faith@precisioninsight.com
-# Revised: Thu Oct 7 10:56:13 1999 by faith@precisioninsight.com
+# Revised: Thu Jan 13 09:53:33 2000 by faith@precisioninsight.com
#
# Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
# All rights reserved.
@@ -25,36 +25,12 @@
# DEALINGS IN THE SOFTWARE.
#
# $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/generic/Makefile.linux,v 1.23 1999/07/02 17:46:30 faith Exp $
-# $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/Makefile.linux,v 1.2 1999/12/14 01:33:55 robin Exp $
+# $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/generic/Makefile.linux,v 1.3 1999/06/27 14:08:21 dawes Exp $
#
.SUFFIXES:
-# **** Start of SMP/MODVERSIONS detection
-
# *** Setup
-LINUX=/usr/src/linux
-AUTOCONF=$(LINUX)/include/linux/autoconf.h
-
-# ** SMP
-SMP := $(shell \
- if grep -q '^\#define.*CONFIG_SMP.*1' $(AUTOCONF); \
- then echo 1; else echo 0; fi)
-# If that doesn't do automatic detection properly on your system,
-# uncomment one of these lines:
-#SMP := 0
-#SMP := 1
-
-# ** MODVERSIONS
-MODVERSIONS := $(shell \
- if grep -q '^\#define.*CONFIG_MODVERSIONS.*1' $(AUTOCONF); \
- then echo 1; else echo 0; fi)
-# If that doesn't do automatic detection properly on your system,
-# uncomment one of these lines:
-#MODVERSIONS := 0
-#MODVERSIONS := 1
-
-# **** End of SMP/MODVERSIONS detection
MODS= gamma.o tdfx.o
LIBS= libdrm.a
@@ -73,8 +49,6 @@ TDFXHEADERS= tdfx_drv.h $(DRMHEADERS)
PROGOBJS= drmstat.po xf86drm.po xf86drmHash.po xf86drmRandom.po sigio.po
PROGHEADERS= xf86drm.h $(DRMHEADERS)
-INC= /usr/include
-
CFLAGS= -O2 $(WARNINGS)
WARNINGS= -Wall -Wwrite-strings -Wpointer-arith -Wcast-align \
-Wstrict-prototypes -Wshadow -Wnested-externs \
@@ -86,18 +60,45 @@ PRGCFLAGS= $(CFLAGS) -g -ansi -pedantic -DPOSIX_C_SOURCE=199309L \
-I../../../../../../../../programs/Xserver/hw/xfree86/common
PRGLIBS=
+# **** Start of SMP/MODVERSIONS detection
+
+# First, locate correct tree for this kernel version. If we find a
+# matching tree, we assume that we can rely on that tree's autoconf.h.
+# This may not be correct, but it is the best assumption we can make.
+
+VERSION := $(shell uname -r)
+A := /usr/src/linux-$(VERSION)/include
+B := /usr/src/linux/include
+C := /usr/include
+TREE := $(shell \
+ if grep -q $(VERSION) $A/linux/version.h; then echo $A; \
+ elif grep -q $(VERSION) $B/linux/version.h; then echo $B; \
+ elif grep -q $(VERSION) $C/linux/version.h; then echo $C; \
+ else echo 0; fi)
+
+ifeq "$TREE" "0"
+all:; echo Error: Could not locate kernel tree
+else
+SMP := $(shell gcc -E -nostdinc -I$(TREE) picker.c 2>/dev/null \
+ | grep 'SMP = ' | cut -d' ' -f3)
+MODVERSIONS := $(shell gcc -E -I $(TREE) picker.c 2>/dev/null \
+ | grep 'MODVERSIONS = ' | cut -d' ' -f3)
+all::;@echo KERNEL HEADERS IN $(TREE): SMP=${SMP} MODVERSIONS=${MODVERSIONS}
+all:: $(LIBS) $(MODS) $(PROGS)
+endif
+
+# **** End of SMP/MODVERSIONS detection
+
# **** Handle SMP/MODVERSIONS
ifeq ($(SMP),1)
MODCFLAGS += -D__SMP__
endif
ifeq ($(MODVERSIONS),1)
-MODCFLAGS += -DMODVERSIONS -include /usr/include/linux/modversions.h
+MODCFLAGS += -DMODVERSIONS -include $(TREE)/linux/modversions.h
endif
# **** End of configuration
-all: $(LIBS) $(MODS) $(PROGS)
-
libdrm.a: $(DRMOBJS)
-$(RM) -f $@
$(AR) rcs $@ $(DRMOBJS)
diff --git a/linux/picker.c b/linux/picker.c
new file mode 100644
index 00000000..186f28b2
--- /dev/null
+++ b/linux/picker.c
@@ -0,0 +1,12 @@
+#include <linux/autoconf.h>
+
+#ifndef CONFIG_SMP
+#define CONFIG_SMP 0
+#endif
+
+#ifndef CONFIG_MODVERSIONS
+#define CONFIG_MODVERSIONS 0
+#endif
+
+SMP = CONFIG_SMP
+MODVERSIONS = CONFIG_MODVERSIONS