diff options
Diffstat (limited to 'gas')
27 files changed, 740 insertions, 0 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 19f4bc2..a134be9 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,34 @@ 2020-03-11 H.J. Lu <hongjiu.lu@intel.com> + * testsuite/gas/i386/i386.exp: Run new tests. + * testsuite/gas/i386/lfence-byte.d: New file. + * testsuite/gas/i386/lfence-byte.e: Likewise. + * testsuite/gas/i386/lfence-byte.s: Likewise. + * testsuite/gas/i386/lfence-indbr-a.d: Likewise. + * testsuite/gas/i386/lfence-indbr-b.d: Likewise. + * testsuite/gas/i386/lfence-indbr-c.d: Likewise. + * testsuite/gas/i386/lfence-indbr.e: Likewise. + * testsuite/gas/i386/lfence-indbr.s: Likewise. + * testsuite/gas/i386/lfence-load.d: Likewise. + * testsuite/gas/i386/lfence-load.s: Likewise. + * testsuite/gas/i386/lfence-ret-a.d: Likewise. + * testsuite/gas/i386/lfence-ret-b.d: Likewise. + * testsuite/gas/i386/lfence-ret.s: Likewise. + * testsuite/gas/i386/x86-64-lfence-byte.d: Likewise. + * testsuite/gas/i386/x86-64-lfence-byte.e: Likewise. + * testsuite/gas/i386/x86-64-lfence-byte.s: Likewise. + * testsuite/gas/i386/x86-64-lfence-indbr-a.d: Likewise. + * testsuite/gas/i386/x86-64-lfence-indbr-b.d: Likewise. + * testsuite/gas/i386/x86-64-lfence-indbr-c.d: Likewise. + * testsuite/gas/i386/x86-64-lfence-indbr.e: Likewise. + * testsuite/gas/i386/x86-64-lfence-indbr.s: Likewise. + * testsuite/gas/i386/x86-64-lfence-load.d: Likewise. + * testsuite/gas/i386/x86-64-lfence-load.s: Likewise. + * testsuite/gas/i386/x86-64-lfence-ret-a.d: Likewise. + * testsuite/gas/i386/x86-64-lfence-ret-b.d: Likewise. + +2020-03-11 H.J. Lu <hongjiu.lu@intel.com> + * config/tc-i386.c (lfence_after_load): New. (lfence_before_indirect_branch_kind): New. (lfence_before_indirect_branch): New. diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp index 785d1b9..f21131e 100644 --- a/gas/testsuite/gas/i386/i386.exp +++ b/gas/testsuite/gas/i386/i386.exp @@ -527,6 +527,13 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_32_check]] run_dump_test "align-branch-7" run_dump_test "align-branch-8" run_dump_test "align-branch-9" + run_dump_test "lfence-load" + run_dump_test "lfence-indbr-a" + run_dump_test "lfence-indbr-b" + run_dump_test "lfence-indbr-c" + run_dump_test "lfence-ret-a" + run_dump_test "lfence-ret-b" + run_dump_test "lfence-byte" # These tests require support for 8 and 16 bit relocs, # so we only run them for ELF and COFF targets. @@ -1105,6 +1112,13 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_64_check]] t run_dump_test "x86-64-align-branch-7" run_dump_test "x86-64-align-branch-8" run_dump_test "x86-64-align-branch-9" + run_dump_test "x86-64-lfence-load" + run_dump_test "x86-64-lfence-indbr-a" + run_dump_test "x86-64-lfence-indbr-b" + run_dump_test "x86-64-lfence-indbr-c" + run_dump_test "x86-64-lfence-ret-a" + run_dump_test "x86-64-lfence-ret-b" + run_dump_test "x86-64-lfence-byte" if { ![istarget "*-*-aix*"] && ![istarget "*-*-beos*"] diff --git a/gas/testsuite/gas/i386/lfence-byte.d b/gas/testsuite/gas/i386/lfence-byte.d new file mode 100644 index 0000000..7e8bb3f --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-byte.d @@ -0,0 +1,30 @@ +#as: -mlfence-before-indirect-branch=all -mlfence-before-ret=or +#warning_output: lfence-byte.e +#objdump: -dw +#name: -mlfence-before-indirect-branch=all -mlfence-before-ret=or + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: f3 aa rep stos %al,%es:\(%edi\) + +[a-f0-9]+: 83 0c 24 00 orl \$0x0,\(%esp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 c3 repz ret + +[a-f0-9]+: f3 c3 repz ret + +[a-f0-9]+: f3 c3 repz ret + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff d0 call \*%eax + +[a-f0-9]+: f3 c3 repz ret + +[a-f0-9]+: 66 66 c3 data16 retw + +[a-f0-9]+: f3 c3 repz ret + +[a-f0-9]+: 9b fwait + +[a-f0-9]+: 83 0c 24 00 orl \$0x0,\(%esp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 c3 repz ret + +[a-f0-9]+: f3 c3 repz ret + +[a-f0-9]+: c3 ret + +[a-f0-9]+: f3 ff d0 repz call \*%eax +#pass diff --git a/gas/testsuite/gas/i386/lfence-byte.e b/gas/testsuite/gas/i386/lfence-byte.e new file mode 100644 index 0000000..e9475f4 --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-byte.e @@ -0,0 +1,9 @@ +.*: Assembler messages: +.*:5: Warning: `rep` skips -mlfence-before-ret on `ret` +.*:7: Warning: `rep` skips -mlfence-before-ret on `ret` +.*:10: Warning: constant directive skips -mlfence-before-ret and -mlfence-before-indirect-branch +.*:13: Warning: `rep` skips -mlfence-before-ret on `ret` +.*:17: Warning: constant directive skips -mlfence-before-ret and -mlfence-before-indirect-branch +.*:17: Warning: `constant directive` skips -mlfence-before-ret on `ret` +.*:20: Warning: constant directive skips -mlfence-before-ret and -mlfence-before-indirect-branch +.*:20: Warning: `constant directive` skips -mlfence-before-indirect-branch on `call` diff --git a/gas/testsuite/gas/i386/lfence-byte.s b/gas/testsuite/gas/i386/lfence-byte.s new file mode 100644 index 0000000..0a05e64 --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-byte.s @@ -0,0 +1,23 @@ + .text +_start: + rep; stosb + rep ret + rep + ret + rep + ret + call *%eax + .byte 0xf3, 0xc3 + .word 0x6666 + .byte 0xc3 + rep + ret + fwait + rep ret + .byte 0xf3 + .byte 0xc3 + ret + .byte 0xf3 + call *%eax + .data + .byte 0 diff --git a/gas/testsuite/gas/i386/lfence-indbr-a.d b/gas/testsuite/gas/i386/lfence-indbr-a.d new file mode 100644 index 0000000..fffcd43 --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-indbr-a.d @@ -0,0 +1,21 @@ +#source: lfence-indbr.s +#as: -mlfence-before-indirect-branch=all +#warning_output: lfence-indbr.e +#objdump: -dw +#name: -mlfence-before-indirect-branch=all + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff d2 call \*%edx + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff e2 jmp \*%edx + +[a-f0-9]+: ff 12 call \*\(%edx\) + +[a-f0-9]+: ff 22 jmp \*\(%edx\) + +[a-f0-9]+: ff 15 00 00 00 00 call \*0x0 + +[a-f0-9]+: ff 25 00 00 00 00 jmp \*0x0 +#pass diff --git a/gas/testsuite/gas/i386/lfence-indbr-b.d b/gas/testsuite/gas/i386/lfence-indbr-b.d new file mode 100644 index 0000000..040c5df --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-indbr-b.d @@ -0,0 +1,20 @@ +#source: lfence-indbr.s +#as: -mlfence-before-indirect-branch=register +#objdump: -dw +#name: -mlfence-before-indirect-branch=register + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff d2 call \*%edx + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff e2 jmp \*%edx + +[a-f0-9]+: ff 12 call \*\(%edx\) + +[a-f0-9]+: ff 22 jmp \*\(%edx\) + +[a-f0-9]+: ff 15 00 00 00 00 call \*0x0 + +[a-f0-9]+: ff 25 00 00 00 00 jmp \*0x0 +#pass diff --git a/gas/testsuite/gas/i386/lfence-indbr-c.d b/gas/testsuite/gas/i386/lfence-indbr-c.d new file mode 100644 index 0000000..a4eb6f0 --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-indbr-c.d @@ -0,0 +1,19 @@ +#source: lfence-indbr.s +#as: -mlfence-before-indirect-branch=memory +#warning_output: lfence-indbr.e +#objdump: -dw +#name: -mlfence-before-indirect-branch=memory + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: ff d2 call \*%edx + +[a-f0-9]+: ff e2 jmp \*%edx + +[a-f0-9]+: ff 12 call \*\(%edx\) + +[a-f0-9]+: ff 22 jmp \*\(%edx\) + +[a-f0-9]+: ff 15 00 00 00 00 call \*0x0 + +[a-f0-9]+: ff 25 00 00 00 00 jmp \*0x0 +#pass diff --git a/gas/testsuite/gas/i386/lfence-indbr.e b/gas/testsuite/gas/i386/lfence-indbr.e new file mode 100644 index 0000000..cc6035c --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-indbr.e @@ -0,0 +1,5 @@ +.*: Assembler messages: +.*:5: Warning: indirect `call` with memory operand should be avoided +.*:6: Warning: indirect `jmp` with memory operand should be avoided +.*:7: Warning: indirect `call` with memory operand should be avoided +.*:8: Warning: indirect `jmp` with memory operand should be avoided diff --git a/gas/testsuite/gas/i386/lfence-indbr.s b/gas/testsuite/gas/i386/lfence-indbr.s new file mode 100644 index 0000000..d29c98a --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-indbr.s @@ -0,0 +1,8 @@ + .text +_start: + call *%edx + jmp *%edx + call *(%edx) + jmp *(%edx) + call *foo + jmp *foo diff --git a/gas/testsuite/gas/i386/lfence-load.d b/gas/testsuite/gas/i386/lfence-load.d new file mode 100644 index 0000000..cd7e7f7 --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-load.d @@ -0,0 +1,112 @@ +#as: -mlfence-after-load=yes +#objdump: -dw +#name: -mlfence-after-load=yes + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: c5 f8 ae 55 00 vldmxcsr 0x0\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 0f 01 55 00 lgdtl 0x0\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 0f c7 75 00 vmptrld 0x0\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 66 0f c7 75 00 vmclear 0x0\(%ebp\) + +[a-f0-9]+: d9 55 00 fsts 0x0\(%ebp\) + +[a-f0-9]+: d9 45 00 flds 0x0\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: db 55 00 fistl 0x0\(%ebp\) + +[a-f0-9]+: df 55 00 fists 0x0\(%ebp\) + +[a-f0-9]+: db 45 00 fildl 0x0\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: df 45 00 filds 0x0\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 9b dd 75 00 fsave 0x0\(%ebp\) + +[a-f0-9]+: dd 65 00 frstor 0x0\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: df 45 00 filds 0x0\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: df 4d 00 fisttps 0x0\(%ebp\) + +[a-f0-9]+: d9 65 00 fldenv 0x0\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 9b d9 75 00 fstenv 0x0\(%ebp\) + +[a-f0-9]+: d8 45 00 fadds 0x0\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: d8 04 24 fadds \(%esp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: d8 c3 fadd %st\(3\),%st + +[a-f0-9]+: d8 01 fadds \(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: df 01 filds \(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: df 11 fists \(%ecx\) + +[a-f0-9]+: 0f ae 29 xrstor \(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 0f 18 01 prefetchnta \(%ecx\) + +[a-f0-9]+: 0f c7 09 cmpxchg8b \(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 41 inc %ecx + +[a-f0-9]+: 0f 01 10 lgdtl \(%eax\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 0f 0f 66 02 b0 pfcmpeq 0x2\(%esi\),%mm4 + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 8f 00 popl \(%eax\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 58 pop %eax + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 66 d1 11 rclw \(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 01 01 00 00 00 testl \$0x1,\(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff 01 incl \(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 11 notl \(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 31 divl \(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 21 mull \(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 39 idivl \(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 29 imull \(%ecx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 8d 04 40 lea \(%eax,%eax,2\),%eax + +[a-f0-9]+: c9 leave + +[a-f0-9]+: 6e outsb %ds:\(%esi\),\(%dx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ac lods %ds:\(%esi\),%al + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 a5 rep movsl %ds:\(%esi\),%es:\(%edi\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 af repz scas %es:\(%edi\),%eax + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 a7 repz cmpsl %es:\(%edi\),%ds:\(%esi\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 ad rep lods %ds:\(%esi\),%eax + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 83 00 01 addl \$0x1,\(%eax\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 0f ba 20 01 btl \$0x1,\(%eax\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 0f c1 03 xadd %eax,\(%ebx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 0f c1 c3 xadd %eax,%ebx + +[a-f0-9]+: 87 03 xchg %eax,\(%ebx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 93 xchg %eax,%ebx + +[a-f0-9]+: 39 45 40 cmp %eax,0x40\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 3b 45 40 cmp 0x40\(%ebp\),%eax + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 01 45 40 add %eax,0x40\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 03 00 add \(%eax\),%eax + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 85 45 40 test %eax,0x40\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 85 45 40 test %eax,0x40\(%ebp\) + +[a-f0-9]+: 0f ae e8 lfence +#pass diff --git a/gas/testsuite/gas/i386/lfence-load.s b/gas/testsuite/gas/i386/lfence-load.s new file mode 100644 index 0000000..b417ac6 --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-load.s @@ -0,0 +1,60 @@ + .text +_start: + vldmxcsr (%ebp) + lgdt (%ebp) + vmptrld (%ebp) + vmclear (%ebp) + fsts (%ebp) + flds (%ebp) + fistl (%ebp) + fists (%ebp) + fildl (%ebp) + filds (%ebp) + fsave (%ebp) + frstor (%ebp) + filds (%ebp) + fisttps (%ebp) + fldenv (%ebp) + fstenv (%ebp) + fadds (%ebp) + fadds (%esp) + fadd %st(3),%st + fadds (%ecx) + filds (%ecx) + fists (%ecx) + xrstor (%ecx) + prefetchnta (%ecx) + cmpxchg8b (%ecx) + incl %ecx + lgdt (%eax) + pfcmpeq 2(%esi),%mm4 + popl (%eax) + popl %eax + rclw (%ecx) + testl $1,(%ecx) + incl (%ecx) + notl (%ecx) + divl (%ecx) + mull (%ecx) + idivl (%ecx) + imull (%ecx) + leal (%eax,%eax,2), %eax + leave + outsb + lodsb + rep movsl + rep scasl + rep cmpsl + rep lodsl + addl $1, (%eax) + btl $1, (%eax) + xadd %eax,(%ebx) + xadd %eax,%ebx + xchg %eax,(%ebx) + xchg %eax,%ebx + cmp %eax,0x40(%ebp) + cmp 0x40(%ebp),%eax + add %eax,0x40(%ebp) + add (%eax),%eax + test %eax,0x40(%ebp) + test 0x40(%ebp),%eax diff --git a/gas/testsuite/gas/i386/lfence-ret-a.d b/gas/testsuite/gas/i386/lfence-ret-a.d new file mode 100644 index 0000000..719cf1b --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-ret-a.d @@ -0,0 +1,18 @@ +#source: lfence-ret.s +#as: -mlfence-before-ret=or +#objdump: -dw +#name: -mlfence-before-ret=or + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: 83 0c 24 00 orl \$0x0,\(%esp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: c3 ret + +[a-f0-9]+: 83 0c 24 00 orl \$0x0,\(%esp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: c2 1e 00 ret \$0x1e +#pass diff --git a/gas/testsuite/gas/i386/lfence-ret-b.d b/gas/testsuite/gas/i386/lfence-ret-b.d new file mode 100644 index 0000000..e3914b9 --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-ret-b.d @@ -0,0 +1,20 @@ +#source: lfence-ret.s +#as: -mlfence-before-ret=not +#objdump: -dw +#name: -mlfence-before-ret=not + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: f7 14 24 notl \(%esp\) + +[a-f0-9]+: f7 14 24 notl \(%esp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: c3 ret + +[a-f0-9]+: f7 14 24 notl \(%esp\) + +[a-f0-9]+: f7 14 24 notl \(%esp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: c2 1e 00 ret \$0x1e +#pass diff --git a/gas/testsuite/gas/i386/lfence-ret.s b/gas/testsuite/gas/i386/lfence-ret.s new file mode 100644 index 0000000..35c4e6e --- /dev/null +++ b/gas/testsuite/gas/i386/lfence-ret.s @@ -0,0 +1,4 @@ + .text +_start: + ret + ret $30 diff --git a/gas/testsuite/gas/i386/x86-64-lfence-byte.d b/gas/testsuite/gas/i386/x86-64-lfence-byte.d new file mode 100644 index 0000000..0083ff6 --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-byte.d @@ -0,0 +1,30 @@ +#as: -mlfence-before-indirect-branch=all -mlfence-before-ret=or +#warning_output: x86-64-lfence-byte.e +#objdump: -dw +#name: x86-64 -mlfence-before-indirect-branch=all -mlfence-before-ret=or + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: f3 aa rep stos %al,%es:\(%rdi\) + +[a-f0-9]+: 48 83 0c 24 00 orq \$0x0,\(%rsp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 c3 repz retq + +[a-f0-9]+: f3 c3 repz retq + +[a-f0-9]+: f3 c3 repz retq + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff d0 callq \*%rax + +[a-f0-9]+: f3 c3 repz retq + +[a-f0-9]+: 66 66 c3 data16 retw + +[a-f0-9]+: f3 c3 repz retq + +[a-f0-9]+: 9b fwait + +[a-f0-9]+: 48 83 0c 24 00 orq \$0x0,\(%rsp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 c3 repz retq + +[a-f0-9]+: f3 c3 repz retq + +[a-f0-9]+: c3 retq + +[a-f0-9]+: f3 ff d0 repz callq \*%rax +#pass diff --git a/gas/testsuite/gas/i386/x86-64-lfence-byte.e b/gas/testsuite/gas/i386/x86-64-lfence-byte.e new file mode 100644 index 0000000..e9475f4 --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-byte.e @@ -0,0 +1,9 @@ +.*: Assembler messages: +.*:5: Warning: `rep` skips -mlfence-before-ret on `ret` +.*:7: Warning: `rep` skips -mlfence-before-ret on `ret` +.*:10: Warning: constant directive skips -mlfence-before-ret and -mlfence-before-indirect-branch +.*:13: Warning: `rep` skips -mlfence-before-ret on `ret` +.*:17: Warning: constant directive skips -mlfence-before-ret and -mlfence-before-indirect-branch +.*:17: Warning: `constant directive` skips -mlfence-before-ret on `ret` +.*:20: Warning: constant directive skips -mlfence-before-ret and -mlfence-before-indirect-branch +.*:20: Warning: `constant directive` skips -mlfence-before-indirect-branch on `call` diff --git a/gas/testsuite/gas/i386/x86-64-lfence-byte.s b/gas/testsuite/gas/i386/x86-64-lfence-byte.s new file mode 100644 index 0000000..b90bb15 --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-byte.s @@ -0,0 +1,23 @@ + .text +_start: + rep; stosb + rep ret + rep + ret + rep + ret + call *%rax + .byte 0xf3, 0xc3 + .word 0x6666 + .byte 0xc3 + rep + ret + fwait + rep ret + .byte 0xf3 + .byte 0xc3 + ret + .byte 0xf3 + call *%rax + .data + .byte 0 diff --git a/gas/testsuite/gas/i386/x86-64-lfence-indbr-a.d b/gas/testsuite/gas/i386/x86-64-lfence-indbr-a.d new file mode 100644 index 0000000..2ab03b4 --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-indbr-a.d @@ -0,0 +1,21 @@ +#source: x86-64-lfence-indbr.s +#as: -mlfence-before-indirect-branch=all +#warning_output: x86-64-lfence-indbr.e +#objdump: -dw +#name: x86-64 -mlfence-before-indirect-branch=all + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff d2 callq \*%rdx + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff e2 jmpq \*%rdx + +[a-f0-9]+: ff 12 callq \*\(%rdx\) + +[a-f0-9]+: ff 22 jmpq \*\(%rdx\) + +[a-f0-9]+: ff 14 25 00 00 00 00 callq \*0x0 + +[a-f0-9]+: ff 24 25 00 00 00 00 jmpq \*0x0 +#pass diff --git a/gas/testsuite/gas/i386/x86-64-lfence-indbr-b.d b/gas/testsuite/gas/i386/x86-64-lfence-indbr-b.d new file mode 100644 index 0000000..21abf4d --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-indbr-b.d @@ -0,0 +1,20 @@ +#source: x86-64-lfence-indbr.s +#as: -mlfence-before-indirect-branch=register +#objdump: -dw +#name: x86-64 -mlfence-before-indirect-branch=register + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff d2 callq \*%rdx + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff e2 jmpq \*%rdx + +[a-f0-9]+: ff 12 callq \*\(%rdx\) + +[a-f0-9]+: ff 22 jmpq \*\(%rdx\) + +[a-f0-9]+: ff 14 25 00 00 00 00 callq \*0x0 + +[a-f0-9]+: ff 24 25 00 00 00 00 jmpq \*0x0 +#pass diff --git a/gas/testsuite/gas/i386/x86-64-lfence-indbr-c.d b/gas/testsuite/gas/i386/x86-64-lfence-indbr-c.d new file mode 100644 index 0000000..952cff4 --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-indbr-c.d @@ -0,0 +1,19 @@ +#source: x86-64-lfence-indbr.s +#as: -mlfence-before-indirect-branch=memory +#warning_output: x86-64-lfence-indbr.e +#objdump: -dw +#name: x86-64 -mlfence-before-indirect-branch=memory + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: ff d2 callq \*%rdx + +[a-f0-9]+: ff e2 jmpq \*%rdx + +[a-f0-9]+: ff 12 callq \*\(%rdx\) + +[a-f0-9]+: ff 22 jmpq \*\(%rdx\) + +[a-f0-9]+: ff 14 25 00 00 00 00 callq \*0x0 + +[a-f0-9]+: ff 24 25 00 00 00 00 jmpq \*0x0 +#pass diff --git a/gas/testsuite/gas/i386/x86-64-lfence-indbr.e b/gas/testsuite/gas/i386/x86-64-lfence-indbr.e new file mode 100644 index 0000000..cc6035c --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-indbr.e @@ -0,0 +1,5 @@ +.*: Assembler messages: +.*:5: Warning: indirect `call` with memory operand should be avoided +.*:6: Warning: indirect `jmp` with memory operand should be avoided +.*:7: Warning: indirect `call` with memory operand should be avoided +.*:8: Warning: indirect `jmp` with memory operand should be avoided diff --git a/gas/testsuite/gas/i386/x86-64-lfence-indbr.s b/gas/testsuite/gas/i386/x86-64-lfence-indbr.s new file mode 100644 index 0000000..0e23808 --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-indbr.s @@ -0,0 +1,8 @@ + .text +_start: + call *%rdx + jmp *%rdx + call *(%rdx) + jmp *(%rdx) + call *foo + jmp *foo diff --git a/gas/testsuite/gas/i386/x86-64-lfence-load.d b/gas/testsuite/gas/i386/x86-64-lfence-load.d new file mode 100644 index 0000000..4f6cd00 --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-load.d @@ -0,0 +1,114 @@ +#as: -mlfence-after-load=yes +#objdump: -dw +#name: x86-64 -mlfence-after-load=yes + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: c5 f8 ae 55 00 vldmxcsr 0x0\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 0f 01 55 00 lgdt 0x0\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 0f c7 75 00 vmptrld 0x0\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 66 0f c7 75 00 vmclear 0x0\(%rbp\) + +[a-f0-9]+: d9 55 00 fsts 0x0\(%rbp\) + +[a-f0-9]+: d9 45 00 flds 0x0\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: db 55 00 fistl 0x0\(%rbp\) + +[a-f0-9]+: df 55 00 fists 0x0\(%rbp\) + +[a-f0-9]+: db 45 00 fildl 0x0\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: df 45 00 filds 0x0\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 9b dd 75 00 fsave 0x0\(%rbp\) + +[a-f0-9]+: dd 65 00 frstor 0x0\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: df 45 00 filds 0x0\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: df 4d 00 fisttps 0x0\(%rbp\) + +[a-f0-9]+: d9 65 00 fldenv 0x0\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 9b d9 75 00 fstenv 0x0\(%rbp\) + +[a-f0-9]+: d8 45 00 fadds 0x0\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: d8 04 24 fadds \(%rsp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: d8 c3 fadd %st\(3\),%st + +[a-f0-9]+: d8 01 fadds \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: df 01 filds \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: df 11 fists \(%rcx\) + +[a-f0-9]+: 0f ae 29 xrstor \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 0f 18 01 prefetchnta \(%rcx\) + +[a-f0-9]+: 0f c7 09 cmpxchg8b \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 48 0f c7 09 cmpxchg16b \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff c1 inc %ecx + +[a-f0-9]+: 0f 01 10 lgdt \(%rax\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 0f 0f 66 02 b0 pfcmpeq 0x2\(%rsi\),%mm4 + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 8f 00 popq \(%rax\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 58 pop %rax + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 66 d1 11 rclw \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 01 01 00 00 00 testl \$0x1,\(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ff 01 incl \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 11 notl \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 31 divl \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 21 mull \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 39 idivl \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f7 29 imull \(%rcx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 48 8d 04 40 lea \(%rax,%rax,2\),%rax + +[a-f0-9]+: c9 leaveq + +[a-f0-9]+: 6e outsb %ds:\(%rsi\),\(%dx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: ac lods %ds:\(%rsi\),%al + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 a5 rep movsl %ds:\(%rsi\),%es:\(%rdi\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 af repz scas %es:\(%rdi\),%eax + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 a7 repz cmpsl %es:\(%rdi\),%ds:\(%rsi\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: f3 ad rep lods %ds:\(%rsi\),%eax + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 41 83 03 01 addl \$0x1,\(%r11\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 41 0f ba 23 01 btl \$0x1,\(%r11\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 48 0f c1 03 xadd %rax,\(%rbx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 48 0f c1 c3 xadd %rax,%rbx + +[a-f0-9]+: 48 87 03 xchg %rax,\(%rbx\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 48 93 xchg %rax,%rbx + +[a-f0-9]+: 48 39 45 40 cmp %rax,0x40\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 48 3b 45 40 cmp 0x40\(%rbp\),%rax + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 48 01 45 40 add %rax,0x40\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 48 03 00 add \(%rax\),%rax + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 48 85 45 40 test %rax,0x40\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: 48 85 45 40 test %rax,0x40\(%rbp\) + +[a-f0-9]+: 0f ae e8 lfence +#pass diff --git a/gas/testsuite/gas/i386/x86-64-lfence-load.s b/gas/testsuite/gas/i386/x86-64-lfence-load.s new file mode 100644 index 0000000..76d0886 --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-load.s @@ -0,0 +1,61 @@ + .text +_start: + vldmxcsr (%rbp) + lgdt (%rbp) + vmptrld (%rbp) + vmclear (%rbp) + fsts (%rbp) + flds (%rbp) + fistl (%rbp) + fists (%rbp) + fildl (%rbp) + filds (%rbp) + fsave (%rbp) + frstor (%rbp) + filds (%rbp) + fisttps (%rbp) + fldenv (%rbp) + fstenv (%rbp) + fadds (%rbp) + fadds (%rsp) + fadd %st(3),%st + fadds (%rcx) + filds (%rcx) + fists (%rcx) + xrstor (%rcx) + prefetchnta (%rcx) + cmpxchg8b (%rcx) + cmpxchg16b (%rcx) + incl %ecx + lgdt (%rax) + pfcmpeq 2(%rsi),%mm4 + popq (%rax) + popq %rax + rclw (%rcx) + testl $1,(%rcx) + incl (%rcx) + notl (%rcx) + divl (%rcx) + mull (%rcx) + idivl (%rcx) + imull (%rcx) + leaq (%rax,%rax,2), %rax + leave + outsb + lodsb + rep movsl + rep scasl + rep cmpsl + rep lodsl + addl $1, (%r11) + btl $1, (%r11) + xadd %rax,(%rbx) + xadd %rax,%rbx + xchg %rax,(%rbx) + xchg %rax,%rbx + cmp %rax,0x40(%rbp) + cmp 0x40(%rbp),%rax + add %rax,0x40(%rbp) + add (%rax),%rax + test %rax,0x40(%rbp) + test 0x40(%rbp),%rax diff --git a/gas/testsuite/gas/i386/x86-64-lfence-ret-a.d b/gas/testsuite/gas/i386/x86-64-lfence-ret-a.d new file mode 100644 index 0000000..26e5b48 --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-ret-a.d @@ -0,0 +1,18 @@ +#source: lfence-ret.s +#as: -mlfence-before-ret=or +#objdump: -dw +#name: x86-64 -mlfence-before-ret=or + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: 48 83 0c 24 00 orq \$0x0,\(%rsp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: c3 retq + +[a-f0-9]+: 48 83 0c 24 00 orq \$0x0,\(%rsp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: c2 1e 00 retq \$0x1e +#pass diff --git a/gas/testsuite/gas/i386/x86-64-lfence-ret-b.d b/gas/testsuite/gas/i386/x86-64-lfence-ret-b.d new file mode 100644 index 0000000..3404888 --- /dev/null +++ b/gas/testsuite/gas/i386/x86-64-lfence-ret-b.d @@ -0,0 +1,20 @@ +#source: lfence-ret.s +#as: -mlfence-before-ret=not +#objdump: -dw +#name: x86-64 -mlfence-before-ret=not + +.*: +file format .* + + +Disassembly of section .text: + +0+ <_start>: + +[a-f0-9]+: 48 f7 14 24 notq \(%rsp\) + +[a-f0-9]+: 48 f7 14 24 notq \(%rsp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: c3 retq + +[a-f0-9]+: 48 f7 14 24 notq \(%rsp\) + +[a-f0-9]+: 48 f7 14 24 notq \(%rsp\) + +[a-f0-9]+: 0f ae e8 lfence + +[a-f0-9]+: c2 1e 00 retq \$0x1e +#pass |