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riscv-gcc-1
Commit aa777e7a by Ian Lance Taylor
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re PR go/56320 (Several libgo tests FAIL on 64-bit Solaris/x86) 

	PR go/56320
runtime: Support Solaris AMD64 in lfstack.
The address space layout is similar on SPARC64 and AMD64 when
running Solaris.

From-SVN: r196179
parent a0a7b611
Showing with 4 additions and 3 deletions
libgo/runtime/lfstack.c
...@@ -17,9 +17,10 @@ ...@@ -17,9 +17,10 @@
#define PTR_MASK ((1ull<<PTR_BITS)-1) #define PTR_MASK ((1ull<<PTR_BITS)-1)
#define CNT_MASK (0ull-1) #define CNT_MASK (0ull-1)
#if __SIZEOF_POINTER__ == 8 && defined(__sparc__) #if __SIZEOF_POINTER__ == 8 && (defined(__sparc__) || (defined(__sun__) && defined(__amd64__)))
// SPARC64 uses all 64 bits of virtual addresses. Use low-order three // SPARC64 and Solaris on AMD64 uses all 64 bits of virtual addresses.
// bits as ABA counter. // Use low-order three bits as ABA counter.
// http://docs.oracle.com/cd/E19120-01/open.solaris/816-5138/6mba6ua5p/index.html
#undef PTR_BITS #undef PTR_BITS
#undef CNT_MASK #undef CNT_MASK
#undef PTR_MASK #undef PTR_MASK
......
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