[PATCH v3] x86: Disallow GOT memory access beyond its GOT slot

[H.J. Lu]

Since GOT slot size is 32 bits for i386 and 64 bits for x86-64, disallow
GOT memory access beyond its GOT slot.

PR gas/32624
* config/tc-i386.c (check_GOT_memory): New function.
(output_disp): Call check_GOT_memory to check valid GOT memory
access.
* testsuite/gas/i386/got.s: Add vector instructions with
byte/word/dword GOT memory.
* testsuite/gas/i386/got-no-relax.d: Updated.
* testsuite/gas/i386/got.d: Likewise.
* testsuite/gas/i386/x86-64-gotpcrel-2.d: Likewise.
* testsuite/gas/i386/i386.exp: Run inval-got.
* testsuite/gas/i386/inval-got.l: New file.
* testsuite/gas/i386/inval-got.s: Likewise.
* testsuite/gas/i386/x86-64-inval-got.l: Likewise.
* testsuite/gas/i386/x86-64-inval-got.l: Likewise.
* testsuite/gas/i386/x86-64-gotpcrel-2.s: Add vector instructions
with byte/word/dword/qword GOT memory.
* testsuite/gas/i386/x86-64.exp: Run x86-64-inval-got.


-- 
H.J.
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