H.J. Lu hjl.tools@gmail.com
Mon Aug 1 22:16:00 GMT 2011

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Hi,

It turns out that x32 needs R_X86_64_64.  One major reason is
the displacement range of x32 is -2G to +2G.  It isn't a problem
for compiler since only small model is required for x32.

However, to address 0 to 4G directly in assembly code, we have
to use R_X86_64_64 with movabs.  I am checking the follow patch
into x32 psABI to allow R_X86_64_64.


-- 
H.J.
diff --git a/object-files.tex b/object-files.tex
index 3c9b9c6..7f0fd14 100644
--- a/object-files.tex
+++ b/object-files.tex
@@ -451,7 +451,7 @@ or \texttt{Elf32_Rel} relocation.
       \multicolumn{1}{c}{Calculation} \\
       \hline
       \texttt{R_X86_64_NONE}  & 0 & none & none \\
-      \texttt{R_X86_64_64} $^\dagger$ & 1 & \textit{word64} & \texttt{S + A} \\
+      \texttt{R_X86_64_64} & 1 & \textit{word64} & \texttt{S + A} \\
       \texttt{R_X86_64_PC32}  & 2 & \textit{word32} & \texttt{S + A - P} \\
       \texttt{R_X86_64_GOT32} & 3 & \textit{word32} & \texttt{G + A} \\
       \texttt{R_X86_64_PLT32} & 4 & \textit{word32} & \texttt{L + A - P} \\

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