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authorGeoff Cant <[email protected]>2010-01-12 22:30:04 +1300
committerBjörn Gustavsson <[email protected]>2010-02-06 09:50:39 +0100
commit56c0170c68a83634c6e2d955723b92c70b117c64 (patch)
tree13b2ea63c6b96fa4953879da1c86928c706b37eb /erts/include/internal
parentd17dd27c7d9b98f2cfd243fadd58a477c3edd7f1 (diff)
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Fix hipe memory allocation problems on darwin/amd64
HiPE on amd64 needs to be able to allocate memory in the 0x20000000+ range so that compiled code will be addressable with 32bit pointers (when sign extended). By default, when building 64bit executables on OS X, PAGEZERO occupies the first 4GB of virtual memory. The PAGEZERO segment cannot be mmap(ed) or vm_allocate(d) into. To avoid this problem we use the -pagezero_size linker flag to reduce the size of PAGEZERO and free up the 0x20000000+ space.
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