diff options
Diffstat (limited to 'src/cmd/vendor/golang.org/x/arch/arm/armasm/objdump_test.go')
| -rw-r--r-- | src/cmd/vendor/golang.org/x/arch/arm/armasm/objdump_test.go | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/src/cmd/vendor/golang.org/x/arch/arm/armasm/objdump_test.go b/src/cmd/vendor/golang.org/x/arch/arm/armasm/objdump_test.go deleted file mode 100644 index db51902cc7..0000000000 --- a/src/cmd/vendor/golang.org/x/arch/arm/armasm/objdump_test.go +++ /dev/null @@ -1,268 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package armasm - -import ( - "encoding/binary" - "strings" - "testing" -) - -func TestObjdumpARMTestdata(t *testing.T) { testObjdumpARM(t, testdataCases(t)) } -func TestObjdumpARMManual(t *testing.T) { testObjdumpARM(t, hexCases(t, objdumpManualTests)) } -func TestObjdumpARMCond(t *testing.T) { testObjdumpARM(t, condCases(t)) } -func TestObjdumpARMUncond(t *testing.T) { testObjdumpARM(t, uncondCases(t)) } -func TestObjdumpARMVFP(t *testing.T) { testObjdumpARM(t, vfpCases(t)) } - -// objdumpManualTests holds test cases that will be run by TestObjdumpARMManual. -// If you are debugging a few cases that turned up in a longer run, it can be useful -// to list them here and then use -run=Manual, particularly with tracing enabled. -// Note that these are byte sequences, so they must be reversed from the usual -// word presentation. -var objdumpManualTests = ` -002a9b1d -001b9bed -020b8ded -003a9b1d -060b8ded -fcde1100 -b4de1100 -bc480000 -0b008de7 -0b00ade7 -fdbcfaf7 -` - -// allowedMismatchObjdump reports whether the mismatch between text and dec -// should be allowed by the test. -func allowedMismatchObjdump(text string, size int, inst *Inst, dec ExtInst) bool { - if hasPrefix(text, "error:") { - if hasPrefix(dec.text, unsupported...) || strings.Contains(dec.text, "invalid:") || strings.HasSuffix(dec.text, "^") || strings.Contains(dec.text, "f16.f64") || strings.Contains(dec.text, "f64.f16") { - return true - } - // word 4320F02C: libopcodes says 'nopmi {44}'. - if hasPrefix(dec.text, "nop") && strings.Contains(dec.text, "{") { - return true - } - } - - if hasPrefix(dec.text, "error:") && text == "undef" && inst.Enc == 0xf7fabcfd { - return true - } - - // word 00f02053: libopcodes says 'noppl {0}'. - if hasPrefix(dec.text, "nop") && hasPrefix(text, "nop") && dec.text == text+" {0}" { - return true - } - - // word F57FF04F. we say 'dsb #15', libopcodes says 'dsb sy'. - if hasPrefix(text, "dsb") && hasPrefix(dec.text, "dsb") { - return true - } - // word F57FF06F. we say 'isb #15', libopcodes says 'isb sy'. - if hasPrefix(text, "isb") && hasPrefix(dec.text, "isb") { - return true - } - // word F57FF053. we say 'dmb #3', libopcodes says 'dmb osh'. - if hasPrefix(text, "dmb") && hasPrefix(dec.text, "dmb") { - return true - } - - // word 992D0000. push/stmdb with no registers (undefined). - // we say 'stmdbls sp!, {}', libopcodes says 'pushls {}'. - if hasPrefix(text, "stmdb") && hasPrefix(dec.text, "push") && strings.Contains(text, "{}") && strings.Contains(dec.text, "{}") { - return true - } - - // word 28BD0000. pop/ldm with no registers (undefined). - // we say 'ldmcs sp!, {}', libopcodes says 'popcs {}'. - if hasPrefix(text, "ldm") && hasPrefix(dec.text, "pop") && strings.Contains(text, "{}") && strings.Contains(dec.text, "{}") { - return true - } - - // word 014640F0. - // libopcodes emits #-0 for negative zero; we don't. - if strings.Replace(dec.text, "#-0", "#0", -1) == text || strings.Replace(dec.text, ", #-0", "", -1) == text { - return true - } - - // word 91EF90F0. we say 'strdls r9, [pc, #0]!' but libopcodes says 'strdls r9, [pc]'. - // word D16F60F0. we say 'strdle r6, [pc, #0]!' but libopcodes says 'strdle r6, [pc, #-0]'. - if strings.Replace(text, ", #0]!", "]", -1) == strings.Replace(dec.text, ", #-0]", "]", -1) { - return true - } - - // word 510F4000. we say apsr, libopcodes says CPSR. - if strings.Replace(dec.text, "CPSR", "apsr", -1) == text { - return true - } - - // word 06A4B059. - // for ssat and usat, libopcodes decodes asr #0 as asr #0 but the manual seems to say it should be asr #32. - // There is never an asr #0. - if strings.Replace(dec.text, ", asr #0", ", asr #32", -1) == text { - return true - } - - if len(dec.enc) >= 4 { - raw := binary.LittleEndian.Uint32(dec.enc[:4]) - - // word 21FFF0B5. - // the manual is clear that this is pre-indexed mode (with !) but libopcodes generates post-index (without !). - if raw&0x01200000 == 0x01200000 && strings.Replace(text, "!", "", -1) == dec.text { - return true - } - - // word C100543E: libopcodes says tst, but no evidence for that. - if strings.HasPrefix(dec.text, "tst") && raw&0x0ff00000 != 0x03100000 && raw&0x0ff00000 != 0x01100000 { - return true - } - - // word C3203CE8: libopcodes says teq, but no evidence for that. - if strings.HasPrefix(dec.text, "teq") && raw&0x0ff00000 != 0x03300000 && raw&0x0ff00000 != 0x01300000 { - return true - } - - // word D14C552E: libopcodes says cmp but no evidence for that. - if strings.HasPrefix(dec.text, "cmp") && raw&0x0ff00000 != 0x03500000 && raw&0x0ff00000 != 0x01500000 { - return true - } - - // word 2166AA4A: libopcodes says cmn but no evidence for that. - if strings.HasPrefix(dec.text, "cmn") && raw&0x0ff00000 != 0x03700000 && raw&0x0ff00000 != 0x01700000 { - return true - } - - // word E70AEEEF: libopcodes says str but no evidence for that. - if strings.HasPrefix(dec.text, "str") && len(dec.text) >= 5 && (dec.text[3] == ' ' || dec.text[5] == ' ') && raw&0x0e500018 != 0x06000000 && raw&0x0e500000 != 0x0400000 { - return true - } - - // word B0AF48F4: libopcodes says strd but P=0,W=1 which is unpredictable. - if hasPrefix(dec.text, "ldr", "str") && raw&0x01200000 == 0x00200000 { - return true - } - - // word B6CC1C76: libopcodes inexplicably says 'uxtab16lt r1, ip, r6, ROR #24' instead of 'uxtab16lt r1, ip, r6, ror #24' - if strings.ToLower(dec.text) == text { - return true - } - - // word F410FDA1: libopcodes says PLDW but the manual is clear that PLDW is F5/F7, not F4. - // word F7D0FB17: libopcodes says PLDW but the manual is clear that PLDW has 0x10 clear - if hasPrefix(dec.text, "pld") && raw&0xfd000010 != 0xf5000000 { - return true - } - - // word F650FE14: libopcodes says PLI but the manual is clear that PLI has 0x10 clear - if hasPrefix(dec.text, "pli") && raw&0xff000010 != 0xf6000000 { - return true - } - } - - return false -} - -// Instructions known to libopcodes (or xed) but not to us. -// Most of these are floating point coprocessor instructions. -var unsupported = strings.Fields(` - abs - acs - adf - aes - asn - atn - cdp - cf - cmf - cnf - cos - cps - crc32 - dvf - eret - exp - fadd - fcmp - fcpy - fcvt - fdiv - fdv - fix - fld - flt - fmac - fmd - fml - fmr - fms - fmul - fmx - fneg - fnm - frd - fsit - fsq - fst - fsu - fto - fui - hlt - hvc - lda - ldc - ldf - lfm - lgn - log - mar - mcr - mcrr - mia - mnf - mra - mrc - mrrc - mrs - msr - msr - muf - mvf - nrm - pol - pow - rdf - rfc - rfe - rfs - rmf - rnd - rpw - rsf - sdiv - sev - sfm - sha1 - sha256 - sin - smc - sqt - srs - stc - stf - stl - suf - tan - udf - udiv - urd - vfma - vfms - vfnma - vfnms - vrint - wfc - wfs -`) |