X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=README;h=659de17d028c8e4ebbabed65b97ee1e3814cf99a;hp=ce25e3a3dabc8977f7a4dc5d4e391e5238e455fc;hb=3e056c21610d5c0c5591fcb0bc714dfe26bff3a3;hpb=6e464eba97cf74320fe4e2b8da6dbe5039582948 diff --git a/README b/README index ce25e3a..659de17 100644 --- a/README +++ b/README @@ -29,7 +29,7 @@ Currently, x86 (i386, i486, i586, i686), x86 64-bit, PowerPC 32/64, S390, S390x, ARM, Alpha, ia64 and Sparcv9 32/64 are supported. Only tested on Linux so far, but should theoretically work on other operating systems. -ARM depends on running a Linux kernel 2.6.15 or better. +ARM depends on running a Linux kernel 2.6.15 or better, GCC 4.4 or better. The gcc compiler versions 3.3, 3.4, 4.0, 4.1, 4.2, 4.3, 4.4 and 4.5 are supported, with the following exceptions: @@ -41,8 +41,9 @@ supported, with the following exceptions: http://www.mail-archive.com/gcc-bugs@gcc.gnu.org/msg281255.html - gcc 3.3 cannot match the "xchg" instruction on 32-bit x86 build. See: http://kerneltrap.org/node/7507 -- Alpha, ia64 and ARM architectures depend on 4.x gcc with atomic builtins - support. +- Alpha, ia64 and ARM architectures depend on gcc 4.x with atomic builtins + support. For ARM this was introduced with gcc 4.4: + http://gcc.gnu.org/gcc-4.4/changes.html For developers using the git tree: @@ -171,7 +172,7 @@ Usage of urcu-call-rcu grace periods. A number of additional functions are provided to manage the helper threads used by call_rcu(), but reasonable defaults are used if these additional functions are not invoked. - See API.txt for more details. + See rcu-api.txt in userspace-rcu documentation for more details. Being careful with signals