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Commit 56b62c7c authored by Wei Xiao's avatar Wei Xiao Committed by Cherry Zhang
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cmd/vendor/golang.org/x/arch: pull updates from x repo 

Vendor from golang.org/x/arch (commit f185940).

Implements #19157

Updates #12840
Updates #20762
Updates #20897
Updates #20096
Updates #20766
Updates #20752
Updates #20096
Updates #19142

Change-Id: Idefb8ba2c355dc07f3b9e8dcf5f00173256a0f0f
Reviewed-on: https://go-review.googlesource.com/49530Reviewed-by: 's avatarCherry Zhang <cherryyz@google.com>
parent a0453a18
Expand all Hide whitespace changes
Inline Side-by-side
Showing with 1128 additions and 14 deletions
src/cmd/vendor/golang.org/x/arch/arm/armasm/decode.go
View file @ 56b62c7c
......@@ -233,9 +233,9 @@ func decodeArg(aop instArg, x uint32) Arg {
typ, count := decodeShift(x)
// ROR #0 here means ROR #0, but decodeShift rewrites to RRX #1.
if typ == RotateRightExt {
return Rm
return Reg(Rm)
}
return RegShift{Rm, typ, count}
return RegShift{Rm, typ, uint8(count)}
case arg_R_shift_R:
Rm := Reg(x & (1<<4 - 1))
......@@ -247,9 +247,9 @@ func decodeArg(aop instArg, x uint32) Arg {
Rm := Reg(x & (1<<4 - 1))
typ, count := decodeShift(x)
if typ == ShiftLeft && count == 0 {
return Rm
return Reg(Rm)
}
return RegShift{Rm, typ, count}
return RegShift{Rm, typ, uint8(count)}
case arg_R1_0:
return Reg((x & (1<<4 - 1)))
......
src/cmd/vendor/golang.org/x/arch/arm/armasm/plan9x.go
View file @ 56b62c7c
......@@ -9,6 +9,7 @@ import (
"encoding/binary"
"fmt"
"io"
"math"
"strings"
)
......@@ -37,7 +38,7 @@ func GoSyntax(inst Inst, pc uint64, symname func(uint64) (string, uint64), text
op := inst.Op.String()
switch inst.Op &^ 15 {
case LDR_EQ, LDRB_EQ, LDRH_EQ:
case LDR_EQ, LDRB_EQ, LDRH_EQ, LDRSB_EQ, LDRSH_EQ, VLDR_EQ:
// Check for RET
reg, _ := inst.Args[0].(Reg)
mem, _ := inst.Args[1].(Mem)
......@@ -48,22 +49,22 @@ func GoSyntax(inst Inst, pc uint64, symname func(uint64) (string, uint64), text
// Check for PC-relative load.
if mem.Base == PC && mem.Sign == 0 && mem.Mode == AddrOffset && text != nil {
addr := uint32(pc) + 8 + uint32(mem.Offset)
buf := make([]byte, 4)
buf := make([]byte, 8)
switch inst.Op &^ 15 {
case LDRB_EQ:
case LDRB_EQ, LDRSB_EQ:
if _, err := text.ReadAt(buf[:1], int64(addr)); err != nil {
break
}
args[1] = fmt.Sprintf("$%#x", buf[0])
case LDRH_EQ:
case LDRH_EQ, LDRSH_EQ:
if _, err := text.ReadAt(buf[:2], int64(addr)); err != nil {
break
}
args[1] = fmt.Sprintf("$%#x", binary.LittleEndian.Uint16(buf))
case LDR_EQ:
if _, err := text.ReadAt(buf, int64(addr)); err != nil {
if _, err := text.ReadAt(buf[:4], int64(addr)); err != nil {
break
}
x := binary.LittleEndian.Uint32(buf)
......@@ -72,6 +73,22 @@ func GoSyntax(inst Inst, pc uint64, symname func(uint64) (string, uint64), text
} else {
args[1] = fmt.Sprintf("$%#x", x)
}
case VLDR_EQ:
switch {
case strings.HasPrefix(args[0], "D"): // VLDR.F64
if _, err := text.ReadAt(buf, int64(addr)); err != nil {
break
}
args[1] = fmt.Sprintf("$%f", math.Float64frombits(binary.LittleEndian.Uint64(buf)))
case strings.HasPrefix(args[0], "S"): // VLDR.F32
if _, err := text.ReadAt(buf[:4], int64(addr)); err != nil {
break
}
args[1] = fmt.Sprintf("$%f", math.Float32frombits(binary.LittleEndian.Uint32(buf)))
default:
panic(fmt.Sprintf("wrong FP register: %v", inst))
}
}
}
}
......@@ -79,7 +96,7 @@ func GoSyntax(inst Inst, pc uint64, symname func(uint64) (string, uint64), text
// Move addressing mode into opcode suffix.
suffix := ""
switch inst.Op &^ 15 {
case LDR_EQ, LDRB_EQ, LDRH_EQ, STR_EQ, STRB_EQ, STRH_EQ:
case LDR_EQ, LDRB_EQ, LDRSB_EQ, LDRH_EQ, LDRSH_EQ, STR_EQ, STRB_EQ, STRH_EQ, VLDR_EQ, VSTR_EQ:
mem, _ := inst.Args[1].(Mem)
switch mem.Mode {
case AddrOffset, AddrLDM:
......@@ -98,7 +115,7 @@ func GoSyntax(inst Inst, pc uint64, symname func(uint64) (string, uint64), text
if mem.Sign != 0 {
sign := ""
if mem.Sign < 0 {
sign = ""
suffix += ".U"
}
shift := ""
if mem.Count != 0 {
......@@ -113,6 +130,11 @@ func GoSyntax(inst Inst, pc uint64, symname func(uint64) (string, uint64), text
for i, j := 0, len(args)-1; i < j; i, j = i+1, j-1 {
args[i], args[j] = args[j], args[i]
}
// For MLA-like instructions, the addend is the third operand.
switch inst.Op &^ 15 {
case SMLAWT_EQ, SMLAWB_EQ, MLA_EQ, MLA_S_EQ, MLS_EQ, SMMLA_EQ, SMMLS_EQ, SMLABB_EQ, SMLATB_EQ, SMLABT_EQ, SMLATT_EQ, SMLAD_EQ, SMLAD_X_EQ, SMLSD_EQ, SMLSD_X_EQ:
args = []string{args[1], args[2], args[0], args[3]}
}
switch inst.Op &^ 15 {
case MOV_EQ:
......@@ -121,9 +143,26 @@ func GoSyntax(inst Inst, pc uint64, symname func(uint64) (string, uint64), text
case LDR_EQ:
op = "MOVW" + op[3:] + suffix
case LDRB_EQ:
op = "MOVB" + op[4:] + suffix
op = "MOVBU" + op[4:] + suffix
case LDRSB_EQ:
op = "MOVBS" + op[5:] + suffix
case LDRH_EQ:
op = "MOVH" + op[4:] + suffix
op = "MOVHU" + op[4:] + suffix
case LDRSH_EQ:
op = "MOVHS" + op[5:] + suffix
case VLDR_EQ:
switch {
case strings.HasPrefix(args[1], "D"): // VLDR.F64
op = "MOVD" + op[4:] + suffix
args[1] = "F" + args[1][1:] // Dx -> Fx
case strings.HasPrefix(args[1], "S"): // VLDR.F32
op = "MOVF" + op[4:] + suffix
if inst.Args[0].(Reg)&1 == 0 { // Sx -> Fy, y = x/2, if x is even
args[1] = fmt.Sprintf("F%d", (inst.Args[0].(Reg)-S0)/2)
}
default:
panic(fmt.Sprintf("wrong FP register: %v", inst))
}
case STR_EQ:
op = "MOVW" + op[3:] + suffix
......@@ -134,6 +173,20 @@ func GoSyntax(inst Inst, pc uint64, symname func(uint64) (string, uint64), text
case STRH_EQ:
op = "MOVH" + op[4:] + suffix
args[0], args[1] = args[1], args[0]
case VSTR_EQ:
switch {
case strings.HasPrefix(args[1], "D"): // VSTR.F64
op = "MOVD" + op[4:] + suffix
args[1] = "F" + args[1][1:] // Dx -> Fx
case strings.HasPrefix(args[1], "S"): // VSTR.F32
op = "MOVF" + op[4:] + suffix
if inst.Args[0].(Reg)&1 == 0 { // Sx -> Fy, y = x/2, if x is even
args[1] = fmt.Sprintf("F%d", (inst.Args[0].(Reg)-S0)/2)
}
default:
panic(fmt.Sprintf("wrong FP register: %v", inst))
}
args[0], args[1] = args[1], args[0]
}
if args != nil {
......@@ -154,7 +207,7 @@ func plan9Arg(inst *Inst, pc uint64, symname func(uint64) (string, uint64), arg
case Endian:
case Imm:
return fmt.Sprintf("$%d", int(a))
return fmt.Sprintf("$%d", uint32(a))
case Mem:
......@@ -185,6 +238,8 @@ func plan9Arg(inst *Inst, pc uint64, symname func(uint64) (string, uint64), arg
} else {
fmt.Fprintf(&buf, "R%d-R%d", start, end)
}
start = -2
end = -2
}
}
for i := 0; i < 16; i++ {
......@@ -195,6 +250,8 @@ func plan9Arg(inst *Inst, pc uint64, symname func(uint64) (string, uint64), arg
}
start = i
end = i
} else {
flush()
}
}
flush()
......
src/cmd/vendor/golang.org/x/arch/arm/armasm/tables.go
View file @ 56b62c7c
......@@ -945,6 +945,22 @@ const (
MRS_LE
MRS
MRS_ZZ
MSR_EQ
MSR_NE
MSR_CS
MSR_CC
MSR_MI
MSR_PL
MSR_VS
MSR_VC
MSR_HI
MSR_LS
MSR_GE
MSR_LT
MSR_GT
MSR_LE
MSR
MSR_ZZ
MUL_EQ
MUL_NE
MUL_CS
......@@ -1585,6 +1601,22 @@ const (
SBFX_LE
SBFX
SBFX_ZZ
SDIV_EQ
SDIV_NE
SDIV_CS
SDIV_CC
SDIV_MI
SDIV_PL
SDIV_VS
SDIV_VC
SDIV_HI
SDIV_LS
SDIV_GE
SDIV_LT
SDIV_GT
SDIV_LE
SDIV
SDIV_ZZ
SEL_EQ
SEL_NE
SEL_CS
......@@ -2929,6 +2961,22 @@ const (
UBFX_LE
UBFX
UBFX_ZZ
UDIV_EQ
UDIV_NE
UDIV_CS
UDIV_CC
UDIV_MI
UDIV_PL
UDIV_VS
UDIV_VC
UDIV_HI
UDIV_LS
UDIV_GE
UDIV_LT
UDIV_GT
UDIV_LE
UDIV
UDIV_ZZ
UHADD16_EQ
UHADD16_NE
UHADD16_CS
......@@ -5480,6 +5528,22 @@ var opstr = [...]string{
MRS_LE: "MRS.LE",
MRS: "MRS",
MRS_ZZ: "MRS.ZZ",
MSR_EQ: "MSR.EQ",
MSR_NE: "MSR.NE",
MSR_CS: "MSR.CS",
MSR_CC: "MSR.CC",
MSR_MI: "MSR.MI",
MSR_PL: "MSR.PL",
MSR_VS: "MSR.VS",
MSR_VC: "MSR.VC",
MSR_HI: "MSR.HI",
MSR_LS: "MSR.LS",
MSR_GE: "MSR.GE",
MSR_LT: "MSR.LT",
MSR_GT: "MSR.GT",
MSR_LE: "MSR.LE",
MSR: "MSR",
MSR_ZZ: "MSR.ZZ",
MUL_EQ: "MUL.EQ",
MUL_NE: "MUL.NE",
MUL_CS: "MUL.CS",
......@@ -6107,6 +6171,22 @@ var opstr = [...]string{
SBFX_LE: "SBFX.LE",
SBFX: "SBFX",
SBFX_ZZ: "SBFX.ZZ",
SDIV_EQ: "SDIV.EQ",
SDIV_NE: "SDIV.NE",
SDIV_CS: "SDIV.CS",
SDIV_CC: "SDIV.CC",
SDIV_MI: "SDIV.MI",
SDIV_PL: "SDIV.PL",
SDIV_VS: "SDIV.VS",
SDIV_VC: "SDIV.VC",
SDIV_HI: "SDIV.HI",
SDIV_LS: "SDIV.LS",
SDIV_GE: "SDIV.GE",
SDIV_LT: "SDIV.LT",
SDIV_GT: "SDIV.GT",
SDIV_LE: "SDIV.LE",
SDIV: "SDIV",
SDIV_ZZ: "SDIV.ZZ",
SEL_EQ: "SEL.EQ",
SEL_NE: "SEL.NE",
SEL_CS: "SEL.CS",
......@@ -7436,6 +7516,22 @@ var opstr = [...]string{
UBFX_LE: "UBFX.LE",
UBFX: "UBFX",
UBFX_ZZ: "UBFX.ZZ",
UDIV_EQ: "UDIV.EQ",
UDIV_NE: "UDIV.NE",
UDIV_CS: "UDIV.CS",
UDIV_CC: "UDIV.CC",
UDIV_MI: "UDIV.MI",
UDIV_PL: "UDIV.PL",
UDIV_VS: "UDIV.VS",
UDIV_VC: "UDIV.VC",
UDIV_HI: "UDIV.HI",
UDIV_LS: "UDIV.LS",
UDIV_GE: "UDIV.GE",
UDIV_LT: "UDIV.LT",
UDIV_GT: "UDIV.GT",
UDIV_LE: "UDIV.LE",
UDIV: "UDIV",
UDIV_ZZ: "UDIV.ZZ",
UHADD16_EQ: "UHADD16.EQ",
UHADD16_NE: "UHADD16.NE",
UHADD16_CS: "UHADD16.CS",
......@@ -9194,6 +9290,10 @@ var instFormats = [...]instFormat{
{0x0fef0ff0, 0x01a00000, 2, MOV_EQ, 0x14011c04, instArgs{arg_R_12, arg_R_0}}, // MOV{S}<c> <Rd>,<Rm> cond:4|0|0|0|1|1|0|1|S|0|0|0|0|Rd:4|0|0|0|0|0|0|0|0|Rm:4
{0x0fff0fff, 0x010f0000, 4, MRS_EQ, 0x1c04, instArgs{arg_R_12, arg_APSR}}, // MRS<c> <Rd>,APSR cond:4|0|0|0|1|0|0|0|0|(1)|(1)|(1)|(1)|Rd:4|(0)|(0)|(0)|(0)|0|0|0|0|(0)|(0)|(0)|(0)
{0x0ff000f0, 0x010f0000, 3, MRS_EQ, 0x1c04, instArgs{arg_R_12, arg_APSR}}, // MRS<c> <Rd>,APSR cond:4|0|0|0|1|0|0|0|0|(1)|(1)|(1)|(1)|Rd:4|(0)|(0)|(0)|(0)|0|0|0|0|(0)|(0)|(0)|(0)
{0x0ffffff0, 0x012cf000, 4, MSR_EQ, 0x1c04, instArgs{arg_APSR, arg_R_0}}, // MSR<c> APSR,<Rn> cond:4|0|0|0|1|0|0|1|0|1|1|0|0|(1)|(1)|(1)|(1)|(0)|(0)|(0)|(0)|0|0|0|0|Rn:4
{0x0fff00f0, 0x012cf000, 3, MSR_EQ, 0x1c04, instArgs{arg_APSR, arg_R_0}}, // MSR<c> APSR,<Rn> cond:4|0|0|0|1|0|0|1|0|1|1|0|0|(1)|(1)|(1)|(1)|(0)|(0)|(0)|(0)|0|0|0|0|Rn:4
{0x0ffff000, 0x032cf000, 4, MSR_EQ, 0x1c04, instArgs{arg_APSR, arg_const}}, // MSR<c> APSR,#<const> cond:4|0|0|1|1|0|0|1|0|1|1|0|0|(1)|(1)|(1)|(1)|imm12:12
{0x0fff0000, 0x032cf000, 3, MSR_EQ, 0x1c04, instArgs{arg_APSR, arg_const}}, // MSR<c> APSR,#<const> cond:4|0|0|1|1|0|0|1|0|1|1|0|0|(1)|(1)|(1)|(1)|imm12:12
{0x0fe0f0f0, 0x00000090, 4, MUL_EQ, 0x14011c04, instArgs{arg_R_16, arg_R_0, arg_R_8}}, // MUL{S}<c> <Rd>,<Rn>,<Rm> cond:4|0|0|0|0|0|0|0|S|Rd:4|(0)|(0)|(0)|(0)|Rm:4|1|0|0|1|Rn:4
{0x0fe000f0, 0x00000090, 3, MUL_EQ, 0x14011c04, instArgs{arg_R_16, arg_R_0, arg_R_8}}, // MUL{S}<c> <Rd>,<Rn>,<Rm> cond:4|0|0|0|0|0|0|0|S|Rd:4|(0)|(0)|(0)|(0)|Rm:4|1|0|0|1|Rn:4
{0x0fef0000, 0x03e00000, 2, MVN_EQ, 0x14011c04, instArgs{arg_R_12, arg_const}}, // MVN{S}<c> <Rd>,#<const> cond:4|0|0|1|1|1|1|1|S|(0)|(0)|(0)|(0)|Rd:4|imm12:12
......@@ -9267,6 +9367,8 @@ var instFormats = [...]instFormat{
{0x0fe00090, 0x00c00010, 4, SBC_EQ, 0x14011c04, instArgs{arg_R_12, arg_R_16, arg_R_shift_R}}, // SBC{S}<c> <Rd>,<Rn>,<Rm>,<type> <Rs> cond:4|0|0|0|0|1|1|0|S|Rn:4|Rd:4|Rs:4|0|type:2|1|Rm:4
{0x0fe00010, 0x00c00000, 2, SBC_EQ, 0x14011c04, instArgs{arg_R_12, arg_R_16, arg_R_shift_imm}}, // SBC{S}<c> <Rd>,<Rn>,<Rm>{,<shift>} cond:4|0|0|0|0|1|1|0|S|Rn:4|Rd:4|imm5:5|type:2|0|Rm:4
{0x0fe00070, 0x07a00050, 4, SBFX_EQ, 0x1c04, instArgs{arg_R_12, arg_R_0, arg_imm5, arg_widthm1}}, // SBFX<c> <Rd>,<Rn>,#<lsb>,#<widthm1> cond:4|0|1|1|1|1|0|1|widthm1:5|Rd:4|lsb:5|1|0|1|Rn:4
{0x0ff0f0f0, 0x0710f010, 4, SDIV_EQ, 0x1c04, instArgs{arg_R_16, arg_R_0, arg_R_8}}, // SDIV<c> <Rd>,<Rn>,<Rm> cond:4|0|1|1|1|0|0|0|1|Rd:4|(1)|(1)|(1)|(1)|Rm:4|0|0|0|1|Rn:4
{0x0ff000f0, 0x0710f010, 3, SDIV_EQ, 0x1c04, instArgs{arg_R_16, arg_R_0, arg_R_8}}, // SDIV<c> <Rd>,<Rn>,<Rm> cond:4|0|1|1|1|0|0|0|1|Rd:4|(1)|(1)|(1)|(1)|Rm:4|0|0|0|1|Rn:4
{0x0ff00ff0, 0x06800fb0, 4, SEL_EQ, 0x1c04, instArgs{arg_R_12, arg_R_16, arg_R_0}}, // SEL<c> <Rd>,<Rn>,<Rm> cond:4|0|1|1|0|1|0|0|0|Rn:4|Rd:4|(1)|(1)|(1)|(1)|1|0|1|1|Rm:4
{0x0ff000f0, 0x06800fb0, 3, SEL_EQ, 0x1c04, instArgs{arg_R_12, arg_R_16, arg_R_0}}, // SEL<c> <Rd>,<Rn>,<Rm> cond:4|0|1|1|0|1|0|0|0|Rn:4|Rd:4|(1)|(1)|(1)|(1)|1|0|1|1|Rm:4
{0xfffffdff, 0xf1010000, 4, SETEND, 0x0, instArgs{arg_endian}}, // SETEND <endian_specifier> 1|1|1|1|0|0|0|1|0|0|0|0|0|0|0|1|0|0|0|0|0|0|E|(0)|(0)|(0)|(0)|(0)|(0)|(0)|(0)|(0)
......@@ -9365,6 +9467,8 @@ var instFormats = [...]instFormat{
{0x0ff00ff0, 0x06500f30, 4, UASX_EQ, 0x1c04, instArgs{arg_R_12, arg_R_16, arg_R_0}}, // UASX<c> <Rd>,<Rn>,<Rm> cond:4|0|1|1|0|0|1|0|1|Rn:4|Rd:4|(1)|(1)|(1)|(1)|0|0|1|1|Rm:4
{0x0ff000f0, 0x06500f30, 3, UASX_EQ, 0x1c04, instArgs{arg_R_12, arg_R_16, arg_R_0}}, // UASX<c> <Rd>,<Rn>,<Rm> cond:4|0|1|1|0|0|1|0|1|Rn:4|Rd:4|(1)|(1)|(1)|(1)|0|0|1|1|Rm:4
{0x0fe00070, 0x07e00050, 4, UBFX_EQ, 0x1c04, instArgs{arg_R_12, arg_R_0, arg_imm5, arg_widthm1}}, // UBFX<c> <Rd>,<Rn>,#<lsb>,#<widthm1> cond:4|0|1|1|1|1|1|1|widthm1:5|Rd:4|lsb:5|1|0|1|Rn:4
{0x0ff0f0f0, 0x0730f010, 4, UDIV_EQ, 0x1c04, instArgs{arg_R_16, arg_R_0, arg_R_8}}, // UDIV<c> <Rd>,<Rn>,<Rm> cond:4|0|1|1|1|0|0|1|1|Rd:4|(1)|(1)|(1)|(1)|Rm:4|0|0|0|1|Rn:4
{0x0ff000f0, 0x0730f010, 3, UDIV_EQ, 0x1c04, instArgs{arg_R_16, arg_R_0, arg_R_8}}, // UDIV<c> <Rd>,<Rn>,<Rm> cond:4|0|1|1|1|0|0|1|1|Rd:4|(1)|(1)|(1)|(1)|Rm:4|0|0|0|1|Rn:4
{0x0ff00ff0, 0x06700f10, 4, UHADD16_EQ, 0x1c04, instArgs{arg_R_12, arg_R_16, arg_R_0}}, // UHADD16<c> <Rd>,<Rn>,<Rm> cond:4|0|1|1|0|0|1|1|1|Rn:4|Rd:4|(1)|(1)|(1)|(1)|0|0|0|1|Rm:4
{0x0ff000f0, 0x06700f10, 3, UHADD16_EQ, 0x1c04, instArgs{arg_R_12, arg_R_16, arg_R_0}}, // UHADD16<c> <Rd>,<Rn>,<Rm> cond:4|0|1|1|0|0|1|1|1|Rn:4|Rd:4|(1)|(1)|(1)|(1)|0|0|0|1|Rm:4
{0x0ff00ff0, 0x06700f90, 4, UHADD8_EQ, 0x1c04, instArgs{arg_R_12, arg_R_16, arg_R_0}}, // UHADD8<c> <Rd>,<Rn>,<Rm> cond:4|0|1|1|0|0|1|1|1|Rn:4|Rd:4|(1)|(1)|(1)|(1)|1|0|0|1|Rm:4
......
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/arg.go 0 → 100644
View file @ 56b62c7c
This diff is collapsed.
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/condition.go 0 → 100755
View file @ 56b62c7c
// Generated by ARM internal tool
// DO NOT EDIT
// Copyright 2017 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 arm64asm
// Following functions are used as the predicator: canDecode of according instruction
// Refer to instFormat inside decode.go for more details
func at_sys_cr_system_cond(instr uint32) bool {
return sys_op_4((instr>>16)&0x7, 0x7, 0x8, (instr>>5)&0x7) == Sys_AT
}
func bfi_bfm_32m_bitfield_cond(instr uint32) bool {
return (instr>>5)&0x1f != 0x1f && uint8((instr>>10)&0x3f) < uint8((instr>>16)&0x3f)
}
func bfi_bfm_64m_bitfield_cond(instr uint32) bool {
return (instr>>5)&0x1f != 0x1f && uint8((instr>>10)&0x3f) < uint8((instr>>16)&0x3f)
}
func bfxil_bfm_32m_bitfield_cond(instr uint32) bool {
return uint8((instr>>10)&0x3f) >= uint8((instr>>16)&0x3f)
}
func bfxil_bfm_64m_bitfield_cond(instr uint32) bool {
return uint8((instr>>10)&0x3f) >= uint8((instr>>16)&0x3f)
}
func cinc_csinc_32_condsel_cond(instr uint32) bool {
return instr&0x1f0000 != 0x1f0000 && instr&0xe000 != 0xe000 && instr&0x3e0 != 0x3e0 && (instr>>5)&0x1f == (instr>>16)&0x1f
}
func cinc_csinc_64_condsel_cond(instr uint32) bool {
return instr&0x1f0000 != 0x1f0000 && instr&0xe000 != 0xe000 && instr&0x3e0 != 0x3e0 && (instr>>5)&0x1f == (instr>>16)&0x1f
}
func cinv_csinv_32_condsel_cond(instr uint32) bool {
return instr&0x1f0000 != 0x1f0000 && instr&0xe000 != 0xe000 && instr&0x3e0 != 0x3e0 && (instr>>5)&0x1f == (instr>>16)&0x1f
}
func cinv_csinv_64_condsel_cond(instr uint32) bool {
return instr&0x1f0000 != 0x1f0000 && instr&0xe000 != 0xe000 && instr&0x3e0 != 0x3e0 && (instr>>5)&0x1f == (instr>>16)&0x1f
}
func cneg_csneg_32_condsel_cond(instr uint32) bool {
return instr&0xe000 != 0xe000 && (instr>>5)&0x1f == (instr>>16)&0x1f
}
func cneg_csneg_64_condsel_cond(instr uint32) bool {
return instr&0xe000 != 0xe000 && (instr>>5)&0x1f == (instr>>16)&0x1f
}
func csinc_general_cond(instr uint32) bool {
return instr&0xe000 != 0xe000
}
func csinv_general_cond(instr uint32) bool {
return instr&0xe000 != 0xe000
}
func dc_sys_cr_system_cond(instr uint32) bool {
return sys_op_4((instr>>16)&0x7, 0x7, (instr>>8)&0xf, (instr>>5)&0x7) == Sys_DC
}
func ic_sys_cr_system_cond(instr uint32) bool {
return sys_op_4((instr>>16)&0x7, 0x7, (instr>>8)&0xf, (instr>>5)&0x7) == Sys_IC
}
func lsl_ubfm_32m_bitfield_cond(instr uint32) bool {
return instr&0xfc00 != 0x7c00 && (instr>>10)&0x3f+1 == (instr>>16)&0x3f
}
func lsl_ubfm_64m_bitfield_cond(instr uint32) bool {
return instr&0xfc00 != 0xfc00 && (instr>>10)&0x3f+1 == (instr>>16)&0x3f
}
func mov_orr_32_log_imm_cond(instr uint32) bool {
return !move_wide_preferred_4((instr>>31)&0x1, (instr>>22)&0x1, (instr>>10)&0x3f, (instr>>16)&0x3f)
}
func mov_orr_64_log_imm_cond(instr uint32) bool {
return !move_wide_preferred_4((instr>>31)&0x1, (instr>>22)&0x1, (instr>>10)&0x3f, (instr>>16)&0x3f)
}
func mov_movn_32_movewide_cond(instr uint32) bool {
return !(is_zero((instr>>5)&0xffff) && (instr>>21)&0x3 != 0x0) && !is_ones_n16((instr>>5)&0xffff)
}
func mov_movn_64_movewide_cond(instr uint32) bool {
return !(is_zero((instr>>5)&0xffff) && (instr>>21)&0x3 != 0x0)
}
func mov_add_32_addsub_imm_cond(instr uint32) bool {
return instr&0x1f == 0x1f || (instr>>5)&0x1f == 0x1f
}
func mov_add_64_addsub_imm_cond(instr uint32) bool {
return instr&0x1f == 0x1f || (instr>>5)&0x1f == 0x1f
}
func mov_movz_32_movewide_cond(instr uint32) bool {
return !(is_zero((instr>>5)&0xffff) && (instr>>21)&0x3 != 0x0)
}
func mov_movz_64_movewide_cond(instr uint32) bool {
return !(is_zero((instr>>5)&0xffff) && (instr>>21)&0x3 != 0x0)
}
func ror_extr_32_extract_cond(instr uint32) bool {
return (instr>>5)&0x1f == (instr>>16)&0x1f
}
func ror_extr_64_extract_cond(instr uint32) bool {
return (instr>>5)&0x1f == (instr>>16)&0x1f
}
func sbfiz_sbfm_32m_bitfield_cond(instr uint32) bool {
return uint8((instr>>10)&0x3f) < uint8((instr>>16)&0x3f)
}
func sbfiz_sbfm_64m_bitfield_cond(instr uint32) bool {
return uint8((instr>>10)&0x3f) < uint8((instr>>16)&0x3f)
}
func sbfx_sbfm_32m_bitfield_cond(instr uint32) bool {
return bfxpreferred_4((instr>>31)&0x1, extract_bit((instr>>29)&0x3, 1), (instr>>10)&0x3f, (instr>>16)&0x3f)
}
func sbfx_sbfm_64m_bitfield_cond(instr uint32) bool {
return bfxpreferred_4((instr>>31)&0x1, extract_bit((instr>>29)&0x3, 1), (instr>>10)&0x3f, (instr>>16)&0x3f)
}
func tlbi_sys_cr_system_cond(instr uint32) bool {
return sys_op_4((instr>>16)&0x7, 0x8, (instr>>8)&0xf, (instr>>5)&0x7) == Sys_TLBI
}
func ubfiz_ubfm_32m_bitfield_cond(instr uint32) bool {
return uint8((instr>>10)&0x3f) < uint8((instr>>16)&0x3f)
}
func ubfiz_ubfm_64m_bitfield_cond(instr uint32) bool {
return uint8((instr>>10)&0x3f) < uint8((instr>>16)&0x3f)
}
func ubfx_ubfm_32m_bitfield_cond(instr uint32) bool {
return bfxpreferred_4((instr>>31)&0x1, extract_bit((instr>>29)&0x3, 1), (instr>>10)&0x3f, (instr>>16)&0x3f)
}
func ubfx_ubfm_64m_bitfield_cond(instr uint32) bool {
return bfxpreferred_4((instr>>31)&0x1, extract_bit((instr>>29)&0x3, 1), (instr>>10)&0x3f, (instr>>16)&0x3f)
}
func fcvtzs_asisdshf_c_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func fcvtzs_asimdshf_c_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func fcvtzu_asisdshf_c_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func fcvtzu_asimdshf_c_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func mov_umov_asimdins_w_w_cond(instr uint32) bool {
return ((instr>>16)&0x1f)&0x7 == 0x4
}
func mov_umov_asimdins_x_x_cond(instr uint32) bool {
return ((instr>>16)&0x1f)&0xf == 0x8
}
func mov_orr_asimdsame_only_cond(instr uint32) bool {
return (instr>>16)&0x1f == (instr>>5)&0x1f
}
func rshrn_asimdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func scvtf_asisdshf_c_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func scvtf_asimdshf_c_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func shl_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func shl_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func shrn_asimdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sli_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sli_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqrshrn_asisdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqrshrn_asimdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqrshrun_asisdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqrshrun_asimdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqshl_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqshl_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqshlu_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqshlu_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqshrn_asisdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqshrn_asimdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqshrun_asisdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sqshrun_asimdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sri_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sri_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func srshr_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func srshr_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func srsra_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func srsra_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sshll_asimdshf_l_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sshr_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sshr_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func ssra_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func ssra_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func sxtl_sshll_asimdshf_l_cond(instr uint32) bool {
return instr&0x780000 != 0x0 && bit_count((instr>>19)&0xf) == 1
}
func ucvtf_asisdshf_c_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func ucvtf_asimdshf_c_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func uqrshrn_asisdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func uqrshrn_asimdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func uqshl_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func uqshl_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func uqshrn_asisdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func uqshrn_asimdshf_n_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func urshr_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func urshr_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func ursra_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func ursra_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func ushll_asimdshf_l_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func ushr_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func ushr_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func usra_asisdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func usra_asimdshf_r_cond(instr uint32) bool {
return instr&0x780000 != 0x0
}
func uxtl_ushll_asimdshf_l_cond(instr uint32) bool {
return instr&0x780000 != 0x0 && bit_count((instr>>19)&0xf) == 1
}
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/condition_util.go 0 → 100755
View file @ 56b62c7c
// Copyright 2017 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 arm64asm
func extract_bit(value, bit uint32) uint32 {
return (value >> bit) & 1
}
func bfxpreferred_4(sf, opc1, imms, immr uint32) bool {
if imms < immr {
return false
}
if (imms>>5 == sf) && (imms&0x1f == 0x1f) {
return false
}
if immr == 0 {
if sf == 0 && (imms == 7 || imms == 15) {
return false
}
if sf == 1 && opc1 == 0 && (imms == 7 ||
imms == 15 || imms == 31) {
return false
}
}
return true
}
func move_wide_preferred_4(sf, N, imms, immr uint32) bool {
if sf == 1 && N != 1 {
return false
}
if sf == 0 && !(N == 0 && ((imms>>5)&1) == 0) {
return false
}
if imms < 16 {
return (-immr)%16 <= (15 - imms)
}
width := uint32(32)
if sf == 1 {
width = uint32(64)
}
if imms >= (width - 15) {
return (immr % 16) <= (imms - (width - 15))
}
return false
}
type Sys uint8
const (
Sys_AT Sys = iota
Sys_DC
Sys_IC
Sys_TLBI
Sys_SYS
)
func sys_op_4(op1, crn, crm, op2 uint32) Sys {
// TODO: system instruction
return Sys_SYS
}
func is_zero(x uint32) bool {
return x == 0
}
func is_ones_n16(x uint32) bool {
return x == 0xffff
}
func bit_count(x uint32) uint8 {
var count uint8
for count = 0; x > 0; x >>= 1 {
if (x & 1) == 1 {
count++
}
}
return count
}
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/decode.go 0 → 100644
View file @ 56b62c7c
This diff is collapsed.
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/decode_test.go 0 → 100644
View file @ 56b62c7c
// Copyright 2017 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 arm64asm
import (
"encoding/hex"
"io/ioutil"
"strings"
"testing"
)
func TestDecode(t *testing.T) {
data, err := ioutil.ReadFile("testdata/cases.txt")
if err != nil {
t.Fatal(err)
}
all := string(data)
for strings.Contains(all, "\t\t") {
all = strings.Replace(all, "\t\t", "\t", -1)
}
for _, line := range strings.Split(all, "\n") {
line = strings.TrimSpace(line)
if line == "" || strings.HasPrefix(line, "#") {
continue
}
f := strings.SplitN(line, "\t", 3)
i := strings.Index(f[0], "|")
if i < 0 {
t.Errorf("parsing %q: missing | separator", f[0])
continue
}
if i%2 != 0 {
t.Errorf("parsing %q: misaligned | separator", f[0])
}
code, err := hex.DecodeString(f[0][:i] + f[0][i+1:])
if err != nil {
t.Errorf("parsing %q: %v", f[0], err)
continue
}
syntax, asm := f[1], f[2]
inst, decodeErr := Decode(code)
if decodeErr != nil && decodeErr != errUnknown {
// Some rarely used system instructions are not supported
// Following logicals will filter such unknown instructions
t.Errorf("parsing %x: %s", code, decodeErr)
continue
}
var out string
switch syntax {
case "gnu":
out = GNUSyntax(inst)
case "plan9":
out = GoSyntax(inst, 0, nil, nil)
default:
t.Errorf("unknown syntax %q", syntax)
continue
}
// TODO: system instruction.
var Todo = strings.Fields(`
sys
dc
at
tlbi
ic
hvc
smc
`)
if strings.Replace(out, " ", "", -1) != strings.Replace(asm, " ", "", -1) && !hasPrefix(asm, Todo...) {
// Exclude MSR since GNU objdump result is incorrect. eg. 0xd504431f msr s0_4_c4_c3_0, xzr
if !strings.HasSuffix(asm, " nv") && !strings.HasPrefix(asm, "msr") {
t.Errorf("Decode(%s) [%s] = %s, want %s", f[0], syntax, out, asm)
}
}
}
}
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/ext_test.go 0 → 100644
View file @ 56b62c7c
This diff is collapsed.
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/gnu.go 0 → 100644
View file @ 56b62c7c
// Copyright 2017 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 arm64asm
import (
"strings"
)
// GNUSyntax returns the GNU assembler syntax for the instruction, as defined by GNU binutils.
// This form typically matches the syntax defined in the ARM Reference Manual.
func GNUSyntax(inst Inst) string {
switch inst.Op {
case RET:
if r, ok := inst.Args[0].(Reg); ok && r == X30 {
return "ret"
}
case B:
if _, ok := inst.Args[0].(Cond); ok {
return strings.ToLower("b." + inst.Args[0].String() + " " + inst.Args[1].String())
}
case SYSL:
result := strings.ToLower(inst.String())
return strings.Replace(result, "c", "C", -1)
case DCPS1, DCPS2, DCPS3, CLREX:
return strings.ToLower(strings.TrimSpace(inst.String()))
case ISB:
if strings.Contains(inst.String(), "SY") {
result := strings.TrimSuffix(inst.String(), " SY")
return strings.ToLower(result)
}
}
return strings.ToLower(inst.String())
}
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/inst.go 0 → 100644
View file @ 56b62c7c
This diff is collapsed.
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/inst.json 0 → 100644
View file @ 56b62c7c
This diff is collapsed.
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/objdump_test.go 0 → 100644
View file @ 56b62c7c
// Copyright 2017 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 arm64asm
import (
"strings"
"testing"
)
func TestObjdumpARM64Testdata(t *testing.T) { testObjdumpARM64(t, testdataCases(t)) }
func TestObjdumpARM64Manual(t *testing.T) { testObjdumpARM64(t, hexCases(t, objdumpManualTests)) }
func TestObjdumpARM64Cond(t *testing.T) { testObjdumpARM64(t, condCases(t)) }
func TestObjdumpARM64(t *testing.T) { testObjdumpARM64(t, JSONCases(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 = `
bf2003d5
9f2003d5
7f2003d5
5f2003d5
3f2003d5
1f2003d5
df4d03d5
ff4d03d5
28d91b14
da6cb530
15e5e514
ff4603d5
df4803d5
bf4100d5
9f3f03d5
9f3e03d5
9f3d03d5
9f3b03d5
9f3a03d5
9f3903d5
9f3703d5
9f3603d5
9f3503d5
9f3303d5
9f3203d5
9f3103d5
ff4603d5
df4803d5
bf4100d5
a3681b53
47dc78d3
0500a012
0500e092
0500a052
0500a0d2
cd5a206e
cd5a202e
743d050e
743d0a0e
743d0c0e
743d084e
`
// allowedMismatchObjdump reports whether the mismatch between text and dec
// should be allowed by the test.
func allowedMismatchObjdump(text string, inst *Inst, dec ExtInst) bool {
// Skip unsupported instructions
if hasPrefix(dec.text, todo...) {
return true
}
// GNU objdump has incorrect alias conditions for following instructions
if inst.Enc&0x000003ff == 0x000003ff && hasPrefix(dec.text, "negs") && hasPrefix(text, "cmp") {
return true
}
// GNU objdump "NV" is equal to our "AL"
if strings.HasSuffix(dec.text, " nv") && strings.HasSuffix(text, " al") {
return true
}
if strings.HasPrefix(dec.text, "b.nv") && strings.HasPrefix(text, "b.al") {
return true
}
// GNU objdump recognizes invalid binaries as following instructions
if hasPrefix(dec.text, "hint", "mrs", "msr", "bfc", "orr", "mov") {
return true
}
if strings.HasPrefix(text, "hint") {
return true
}
// GNU objdump recognizes reserved valuse as valid ones
if strings.Contains(text, "unknown instruction") && hasPrefix(dec.text, "fmla", "fmul", "fmulx", "fcvtzs", "fcvtzu", "fmls", "fmov", "scvtf", "ucvtf") {
return true
}
// GNU objdump misses spaces between operands for some instructions (e.g., "ld1 {v10.2s, v11.2s}, [x23],#16")
if strings.Replace(text, " ", "", -1) == strings.Replace(dec.text, " ", "", -1) {
return true
}
return false
}
// TODO: system instruction.
var todo = strings.Fields(`
sys
dc
at
tlbi
ic
hvc
smc
`)
// Following instructions can't be covered because they are just aliases to another instructions which are always preferred
var Ncover = strings.Fields(`
sbfm
asrv
bfm
ubfm
lslv
lsrv
rorv
ins
dup
`)
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/objdumpext_test.go 0 → 100644
View file @ 56b62c7c
// Copyright 2017 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.
// Copied and simplified from ../../arm/armasm/objdumpext_test.go.
package arm64asm
import (
"bytes"
"debug/elf"
"encoding/binary"
"fmt"
"io"
"log"
"os"
"os/exec"
"strconv"
"strings"
"testing"
)
const objdumpPath = "/usr/bin/objdump"
func testObjdumpARM64(t *testing.T, generate func(func([]byte))) {
testObjdumpArch(t, generate, ModeARM64)
}
func testObjdumpArch(t *testing.T, generate func(func([]byte)), arch Mode) {
if _, err := os.Stat(objdumpPath); err != nil {
t.Skip(err)
}
// Check objdump can disassemble elf64-aarch64.
if test := objdumpinfo(); test == false {
t.Skip("Skip the test if installed objdump doesn't support aarch64 elf format")
}
testExtDis(t, "gnu", arch, objdump, generate, allowedMismatchObjdump)
testExtDis(t, "plan9", arch, objdump, generate, allowedMismatchObjdump)
}
func objdumpinfo() bool {
var i = []byte("aarch64")
out, err := exec.Command(objdumpPath, "-i").Output()
if err != nil {
log.Fatal(err)
}
if bytes.Contains(out, i) {
return true
}
return false
}
func objdump(ext *ExtDis) error {
// File already written with instructions; add ELF header.
if ext.Arch == ModeARM64 {
if err := writeELF64(ext.File, ext.Size); err != nil {
return err
}
} else {
panic("unknown arch")
}
b, err := ext.Run(objdumpPath, "-d", "-z", ext.File.Name())
if err != nil {
return err
}
var (
nmatch int
reading bool
next uint64 = start
addr uint64
encbuf [4]byte
enc []byte
text string
)
flush := func() {
if addr == next {
// PC-relative addresses are translated to absolute addresses based on PC by GNU objdump
// Following logical rewrites the absolute addresses back to PC-relative ones for comparing
// with our disassembler output which are PC-relative
if m := pcrelprfmim.FindStringSubmatch(text); m != nil {
targ, _ := strconv.ParseUint(m[2], 16, 64)
text = fmt.Sprintf("%s .%+#x", m[1], uint64(targ-uint64(addr)))
}
if m := pcrelprfm.FindStringSubmatch(text); m != nil {
targ, _ := strconv.ParseUint(m[2], 16, 64)
text = fmt.Sprintf("%s .%+#x", m[1], uint64(targ-uint64(addr)))
}
if m := pcrelim.FindStringSubmatch(text); m != nil {
targ, _ := strconv.ParseUint(m[2], 16, 64)
text = fmt.Sprintf("%s .%+#x", m[1], uint64(targ-uint64(addr)))
}
if m := pcrelimzr.FindStringSubmatch(text); m != nil {
targ, _ := strconv.ParseUint(m[2], 16, 64)
text = fmt.Sprintf("%s .%+#x", m[1], uint64(targ-uint64(addr)))
}
if m := pcrelr.FindStringSubmatch(text); m != nil {
targ, _ := strconv.ParseUint(m[2], 16, 64)
if strings.Contains(m[1], "adrp") {
text = fmt.Sprintf("%s .%+#x", m[1], uint64(targ-uint64(addr&0xfffff000)))
} else {
text = fmt.Sprintf("%s .%+#x", m[1], uint64(targ-uint64(addr)))
}
}
if m := pcrelrzr.FindStringSubmatch(text); m != nil {
targ, _ := strconv.ParseUint(m[2], 16, 64)
if strings.Contains(m[1], "adrp") {
text = fmt.Sprintf("%s .%+#x", m[1], uint64(targ-uint64(addr&0xfffff000)))
} else {
text = fmt.Sprintf("%s .%+#x", m[1], uint64(targ-uint64(addr)))
}
}
if m := pcrel.FindStringSubmatch(text); m != nil {
targ, _ := strconv.ParseUint(m[2], 16, 64)
text = fmt.Sprintf("%s .%+#x", m[1], uint64(targ-uint64(addr)))
}
if strings.HasPrefix(text, "mov") && strings.Contains(text, "//") {
s := strings.Split(text, " //")
text = s[0]
}
text = strings.Replace(text, "#0.0", "#0", -1)
if text == "undefined" && len(enc) == 4 {
text = "error: unknown instruction"
enc = nil
}
if len(enc) == 4 {
// prints as word but we want to record bytes
enc[0], enc[3] = enc[3], enc[0]
enc[1], enc[2] = enc[2], enc[1]
}
ext.Dec <- ExtInst{addr, encbuf, len(enc), text}
encbuf = [4]byte{}
enc = nil
next += 4
}
}
var textangle = []byte("<.text>:")
for {
line, err := b.ReadSlice('\n')
if err != nil {
if err == io.EOF {
break
}
return fmt.Errorf("reading objdump output: %v", err)
}
if bytes.Contains(line, textangle) {
reading = true
continue
}
if !reading {
continue
}
if debug {
os.Stdout.Write(line)
}
if enc1 := parseContinuation(line, encbuf[:len(enc)]); enc1 != nil {
enc = enc1
continue
}
flush()
nmatch++
addr, enc, text = parseLine(line, encbuf[:0])
if addr > next {
return fmt.Errorf("address out of sync expected <= %#x at %q in:\n%s", next, line, line)
}
}
flush()
if next != start+uint64(ext.Size) {
return fmt.Errorf("not enough results found [%d %d]", next, start+ext.Size)
}
if err := ext.Wait(); err != nil {
return fmt.Errorf("exec: %v", err)
}
return nil
}
var (
undefined = []byte("undefined")
unpredictable = []byte("unpredictable")
)
func parseLine(line []byte, encstart []byte) (addr uint64, enc []byte, text string) {
ok := false
oline := line
i := index(line, ":\t")
if i < 0 {
log.Fatalf("cannot parse disassembly: %q", oline)
}
x, err := strconv.ParseUint(string(bytes.TrimSpace(line[:i])), 16, 32)
if err != nil {
log.Fatalf("cannot parse disassembly: %q", oline)
}
addr = uint64(x)
line = line[i+2:]
i = bytes.IndexByte(line, '\t')
if i < 0 {
log.Fatalf("cannot parse disassembly: %q", oline)
}
enc, ok = parseHex(line[:i], encstart)
if !ok {
log.Fatalf("cannot parse disassembly: %q", oline)
}
line = bytes.TrimSpace(line[i:])
if bytes.Contains(line, undefined) {
text = "undefined"
return
}
if false && bytes.Contains(line, unpredictable) {
text = "unpredictable"
return
}
if i := bytes.IndexByte(line, ';'); i >= 0 {
line = bytes.TrimSpace(line[:i])
}
text = string(fixSpace(line))
return
}
func parseContinuation(line []byte, enc []byte) []byte {
i := index(line, ":\t")
if i < 0 {
return nil
}
line = line[i+1:]
enc, _ = parseHex(line, enc)
return enc
}
// writeELF64 writes an ELF64 header to the file, describing a text
// segment that starts at start (0x8000) and extends for size bytes.
func writeELF64(f *os.File, size int) error {
f.Seek(0, 0)
var hdr elf.Header64
var prog elf.Prog64
var sect elf.Section64
var buf bytes.Buffer
binary.Write(&buf, binary.LittleEndian, &hdr)
off1 := buf.Len()
binary.Write(&buf, binary.LittleEndian, &prog)
off2 := buf.Len()
binary.Write(&buf, binary.LittleEndian, &sect)
off3 := buf.Len()
buf.Reset()
data := byte(elf.ELFDATA2LSB)
hdr = elf.Header64{
Ident: [16]byte{0x7F, 'E', 'L', 'F', 2, data, 1},
Type: 2,
Machine: uint16(elf.EM_AARCH64),
Version: 1,
Entry: start,
Phoff: uint64(off1),
Shoff: uint64(off2),
Flags: 0x05000002,
Ehsize: uint16(off1),
Phentsize: uint16(off2 - off1),
Phnum: 1,
Shentsize: uint16(off3 - off2),
Shnum: 3,
Shstrndx: 2,
}
binary.Write(&buf, binary.LittleEndian, &hdr)
prog = elf.Prog64{
Type: 1,
Off: start,
Vaddr: start,
Paddr: start,
Filesz: uint64(size),
Memsz: uint64(size),
Flags: 5,
Align: start,
}
binary.Write(&buf, binary.LittleEndian, &prog)
binary.Write(&buf, binary.LittleEndian, &sect) // NULL section
sect = elf.Section64{
Name: 1,
Type: uint32(elf.SHT_PROGBITS),
Addr: start,
Off: start,
Size: uint64(size),
Flags: uint64(elf.SHF_ALLOC | elf.SHF_EXECINSTR),
Addralign: 4,
}
binary.Write(&buf, binary.LittleEndian, &sect) // .text
sect = elf.Section64{
Name: uint32(len("\x00.text\x00")),
Type: uint32(elf.SHT_STRTAB),
Addr: 0,
Off: uint64(off2 + (off3-off2)*3),
Size: uint64(len("\x00.text\x00.shstrtab\x00")),
Addralign: 1,
}
binary.Write(&buf, binary.LittleEndian, &sect)
buf.WriteString("\x00.text\x00.shstrtab\x00")
f.Write(buf.Bytes())
return nil
}
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/plan9x.go 0 → 100644
View file @ 56b62c7c
This diff is collapsed.
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/tables.go 0 → 100644
View file @ 56b62c7c
This diff is collapsed.
src/cmd/vendor/golang.org/x/arch/arm64/arm64asm/testdata/Makefile 0 → 100644
View file @ 56b62c7c
go test command:
cd ..; go test -run 'ObjdumpARM64Cond' -v -timeout 10h -long 2>&1 | tee log
cd ..; go test -run 'ObjdumpARM64Testdata' -v -timeout 10h -long 2>&1 | tee -a log
cd ..; go test -run 'ObjdumpARM64' -v -timeout 10h -long 2>&1 | tee -a log
cd ..; go test -run 'ObjdumpARM64Manual' -v -timeout 10h -long 2>&1 | tee -a log
cd ..; go test -run 'TestDecode'
cd ..; go test -run '.*'
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