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7132779: build-infra merge: Enable ccache to work for most developer builds

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When a build number is not specified, the JRE_RELEASE_VERSION define contains a date and timestamp. Thus ccache cannot cache the object files for longer than a minute since the define is passed to the compilation of all source files. This change passes JRE_RELEASE_VERSION only to vm_version.cpp and adds a function jre_release_version() to Abstract_VM_Version. This allows all other source files to be ccached.

Reviewed-by: ohair, rottenha
This commit is contained in:
Fredrik Ohrstrom 2012-01-31 13:12:39 +01:00 • committed by Fredrik Öhrström
parent 76dfe7f707
commit 301215b860
5 changed files with 23 additions and 3 deletions
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hotspot/src/share/vm/runtime/vm_version.hpp
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@ -71,6 +71,7 @@ class Abstract_VM_Version: AllStatic {
// Internal version providing additional build information
static const char* internal_vm_info_string();
static const char* jre_release_version();
// does HW support an 8-byte compare-exchange operation?
static bool supports_cx8() {return _supports_cx8;}