X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=README;h=b96912e829fc7042d0e2101062ecc454f9c3bd1f;hp=f9437dba2857856b726cc4539b6deeafaf09f668;hb=bf9de1b724767a7b0d9f32385ed3ab8623aabb71;hpb=64c4cafd597aff7423be003dcf41735904126f66

diff --git a/README b/README
index f9437db..b96912e 100644
--- a/README
+++ b/README
@@ -9,20 +9,21 @@ BUILDING
 	make
 	make install
 
-	Note:	Forcing 32-bit build:
-		* CFLAGS=-m32 ./configure
+	Hints:	Forcing 32-bit build:
+		* CFLAGS="-m32 -g -O2" ./configure
 
 		Forcing 64-bit build:
-		* CFLAGS=-m64 ./configure
+		* CFLAGS="-m64 -g -O2" ./configure
+
+		Forcing a 32-bit build with 386 backward compatibility:
+		* CFLAGS="-m32 -g -O2" ./configure --target=i386-pc-linux-gnu
 
 ARCHITECTURES SUPPORTED
 -----------------------
 
-Currently, x86 (only P6+), x86 64, PowerPC 32/64 and S390 are
-supported. The current use of sys_futex() makes it Linux-dependent, although
-this portability limitation might go away in a near future by using the pthread
-cond vars. Also, the restriction against i386, i486 and Pentium might go away if
-we integrate some of glibc runtime CPU-detection tests.
+Currently, x86 (i386, i486, i586, i686), x86 64-bit, PowerPC 32/64, S390 and
+S390x are supported. Only tested on Linux so far, but should theoretically work
+on other operating systems.
 
 QUICK START GUIDE
 -----------------
@@ -136,3 +137,13 @@ Usage of DEBUG_YIELD
 
 	DEBUG_YIELD is used to add random delays in the code for testing
 	purposes.
+
+SMP support
+
+	By default the library is configured to use synchronization primitives
+	adequate for SMP systems. On uniprocessor systems, support for SMP
+	systems can be disabled with:
+
+		./configure --disable-smp-support
+
+	theoretically yielding slightly better performance.