On 4 August 2010 13:56, Marcos Dione wrote: > > I'm cross-compiling an application to a platform whose SDK brings a gcc > which reports 'Thread model: single'. even so, the platform implements a > rudimentary thread support (a subset of posix), which leads me to think > that it should be possible to use it in C programs. > > why? because the only reference to Thread model I could find in gcc's > doc is in libstdc++'s manual[1] and no other useful reference about simple > thread model.
Do you man single, not simple? See the docs for --enable-threads at http://gcc.gnu.org/install/configure.html > so, in short: does a simple Thread model have any impact on C-only > programs that could use threads? in particular, how it does impact > Boehm's GC usage in a C-only program? if the impact is negative, would IIUC GCC's thread model doesn't affect how you use threads in your own program, only how GCC's libraries (e.g. the C++ and ObjC runtimes) use threads. > you say that the original gcc is compiled with the wrong flags, given that > there is a bit of pthreads implementation in the platform? If the configure command for GCC doesn't show --enable-threads=no or --disable-threads then it probably means that configure tried to find the functions needed for --enable-threads=posix and failed, so the rudimentary support is not enough.
