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6953477: Increase portability and flexibility of building Hotspot

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A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.

Reviewed-by: phh, never, coleenp, dholmes
This commit is contained in:
Bob Vandette 2010-08-03 08:13:38 -04:00
parent c45761e2a8
commit b95c7e9523
113 changed files with 1669 additions and 559 deletions
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14
hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp
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@ -216,8 +216,16 @@ extern "C" {
#define DEBUG_EXCEPTION ::abort();
#ifdef ARM
#ifdef SOLARIS
#define BREAKPOINT __asm__ volatile (".long 0xe1200070")
#else
#define BREAKPOINT __asm__ volatile (".long 0xe7f001f0")
#endif
#else
extern "C" void breakpoint();
#define BREAKPOINT ::breakpoint()
#endif
// checking for nanness
#ifdef SOLARIS
@ -235,6 +243,12 @@ inline int g_isnan(double f) { return isnan(f); }
#error "missing platform-specific definition here"
#endif
// GCC 4.3 does not allow 0.0/0.0 to produce a NAN value
#if (__GNUC__ == 4) && (__GNUC_MINOR__ > 2)
#define CAN_USE_NAN_DEFINE 1
#endif
// Checking for finiteness
inline int g_isfinite(jfloat f) { return finite(f); }