From f24bcbaa5a6e30556e2da20bfd78e7823741475a Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Wed, 15 Apr 2015 09:53:13 -0700 Subject: Handle invalid prefixes for rdrand and rdseed This patch puts rdrand and rdseed in prefix_table so that invalid prefixes for rdrand and rdseed are handled properly. gas/testsuite/ PR binutils/17898 * gas/i386/prefix.s: Add rdrand/rdseed prefix tests. * gas/i386/prefix.d: Updated. opcodes/ PR binutils/17898 * i386-dis.c (PREFIX_0FC7_REG_6): Renamed to ... (PREFIX_MOD_0_0FC7_REG_6): This. (PREFIX_MOD_3_0FC7_REG_6): New. (PREFIX_MOD_3_0FC7_REG_7): Likewise. (prefix_table): Replace PREFIX_0FC7_REG_6 with PREFIX_MOD_0_0FC7_REG_6. Add PREFIX_MOD_3_0FC7_REG_6 and PREFIX_MOD_3_0FC7_REG_7. (mod_table): Replace PREFIX_0FC7_REG_6 with PREFIX_MOD_0_0FC7_REG_6. Use PREFIX_MOD_3_0FC7_REG_6 and PREFIX_MOD_3_0FC7_REG_7. --- gas/testsuite/ChangeLog | 6 ++++++ gas/testsuite/gas/i386/prefix.d | 11 +++++++++++ gas/testsuite/gas/i386/prefix.s | 32 ++++++++++++++++++++++++++++++++ 3 files changed, 49 insertions(+) (limited to 'gas') diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog index ea6a87a..5fa02ac 100644 --- a/gas/testsuite/ChangeLog +++ b/gas/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2015-04-15 H.J. Lu + + PR binutils/17898 + * gas/i386/prefix.s: Add rdrand/rdseed prefix tests. + * gas/i386/prefix.d: Updated. + 2015-04-15 Renlin Li * gas/arm/arch7em.d: Adjust required ssat and ssat16 immediate field. diff --git a/gas/testsuite/gas/i386/prefix.d b/gas/testsuite/gas/i386/prefix.d index a334ab8..7afb0c1 100644 --- a/gas/testsuite/gas/i386/prefix.d +++ b/gas/testsuite/gas/i386/prefix.d @@ -63,4 +63,15 @@ Disassembly of section .text: [ ]*[a-f0-9]+: f3 f0 66 3e 36 90 lock data16 ds ss pause [ ]*[a-f0-9]+: f3 f2 67 3e 36 90 repz repnz addr16 ds ss nop [ ]*[a-f0-9]+: f3 67 f2 66 3e 36 90 repz addr16 repnz ds ss xchg %ax,%ax +[ ]*[a-f0-9]+: f3 0f c7 \(bad\) +[ ]*[a-f0-9]+: f8 clc +[ ]*[a-f0-9]+: 90 nop +[ ]*[a-f0-9]+: f3 0f c7 \(bad\) +[ ]*[a-f0-9]+: f0 90 lock nop +[ ]*[a-f0-9]+: f2 0f c7 \(bad\) +[ ]*[a-f0-9]+: f8 clc +[ ]*[a-f0-9]+: 90 nop +[ ]*[a-f0-9]+: f2 0f c7 \(bad\) +[ ]*[a-f0-9]+: f0 90 lock nop + ... #pass diff --git a/gas/testsuite/gas/i386/prefix.s b/gas/testsuite/gas/i386/prefix.s index 9f90afa..12d8bbc 100644 --- a/gas/testsuite/gas/i386/prefix.s +++ b/gas/testsuite/gas/i386/prefix.s @@ -359,5 +359,37 @@ .byte 0x36 .byte 0x90 +# repz; rdseed %eax + .byte 0xf3 + .byte 0x0f + .byte 0xc7 + .byte 0xf8 + + nop + +# repz; rdrand %eax + .byte 0xf3 + .byte 0x0f + .byte 0xc7 + .byte 0xf0 + + nop + +# repnz; rdseed %eax + .byte 0xf2 + .byte 0x0f + .byte 0xc7 + .byte 0xf8 + + nop + +# repnz; rdrand %eax + .byte 0xf2 + .byte 0x0f + .byte 0xc7 + .byte 0xf0 + + nop + # Get a good alignment. .p2align 4,0 -- cgit v1.1