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cmd/internal/objabi,cmd/link/internal/sym: add SDWARFADDR symbol type

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Add a new symbol type: SDWARFADDR. This kind of symbol stores content
to be added to the DWARF .debug_addr section (new with DWARF5). At the
moment these symbols are created only in the linker, but it's not hard to
imagine other implementations in which the compiler would create them,
so they are added to both the compiler and linker symbol kind space.

Updates #26379.

Change-Id: I4a82ead0d59fe6028abfd6d6e3fc3df2e28c0ef6
Reviewed-on: https://go-review.googlesource.com/c/go/+/634415
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
Than McIntosh 2024-12-05 19:01:22 -05:00
parent 31b800abe6
commit 282a14ec61
4 changed files with 16 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

1
src/cmd/internal/objabi/symkind.go
View file

@ -70,6 +70,7 @@ const (
SDWARFRANGE SDWARFRANGE
SDWARFLOC SDWARFLOC
SDWARFLINES SDWARFLINES
SDWARFADDR
// Coverage instrumentation counter for libfuzzer. // Coverage instrumentation counter for libfuzzer.
SLIBFUZZER_8BIT_COUNTER SLIBFUZZER_8BIT_COUNTER
// Coverage instrumentation counter, aux variable for cmd/cover // Coverage instrumentation counter, aux variable for cmd/cover

13
src/cmd/internal/objabi/symkind_string.go
View file

@ -29,15 +29,16 @@ func _() {
_ = x[SDWARFRANGE-18] _ = x[SDWARFRANGE-18]
_ = x[SDWARFLOC-19] _ = x[SDWARFLOC-19]
_ = x[SDWARFLINES-20] _ = x[SDWARFLINES-20]
_ = x[SLIBFUZZER_8BIT_COUNTER-21] _ = x[SDWARFADDR-21]
_ = x[SCOVERAGE_COUNTER-22] _ = x[SLIBFUZZER_8BIT_COUNTER-22]
_ = x[SCOVERAGE_AUXVAR-23] _ = x[SCOVERAGE_COUNTER-23]
_ = x[SSEHUNWINDINFO-24] _ = x[SCOVERAGE_AUXVAR-24]
_ = x[SSEHUNWINDINFO-25]
} }
const _SymKind_name = "SxxxSTEXTSTEXTFIPSSRODATASRODATAFIPSSNOPTRDATASNOPTRDATAFIPSSDATASDATAFIPSSBSSSNOPTRBSSSTLSBSSSDWARFCUINFOSDWARFCONSTSDWARFFCNSDWARFABSFCNSDWARFTYPESDWARFVARSDWARFRANGESDWARFLOCSDWARFLINESSLIBFUZZER_8BIT_COUNTERSCOVERAGE_COUNTERSCOVERAGE_AUXVARSSEHUNWINDINFO" const _SymKind_name = "SxxxSTEXTSTEXTFIPSSRODATASRODATAFIPSSNOPTRDATASNOPTRDATAFIPSSDATASDATAFIPSSBSSSNOPTRBSSSTLSBSSSDWARFCUINFOSDWARFCONSTSDWARFFCNSDWARFABSFCNSDWARFTYPESDWARFVARSDWARFRANGESDWARFLOCSDWARFLINESSDWARFADDRSLIBFUZZER_8BIT_COUNTERSCOVERAGE_COUNTERSCOVERAGE_AUXVARSSEHUNWINDINFO"
var _SymKind_index = [...]uint16{0, 4, 9, 18, 25, 36, 46, 60, 65, 74, 78, 87, 94, 106, 117, 126, 138, 148, 157, 168, 177, 188, 211, 228, 244, 258} var _SymKind_index = [...]uint16{0, 4, 9, 18, 25, 36, 46, 60, 65, 74, 78, 87, 94, 106, 117, 126, 138, 148, 157, 168, 177, 188, 198, 221, 238, 254, 268}
func (i SymKind) String() string { func (i SymKind) String() string {
if i >= SymKind(len(_SymKind_index)-1) { if i >= SymKind(len(_SymKind_index)-1) {

4
src/cmd/link/internal/sym/symkind.go
View file

@ -141,6 +141,7 @@ const (
SDWARFRANGE SDWARFRANGE
SDWARFLOC SDWARFLOC
SDWARFLINES SDWARFLINES
SDWARFADDR
// SEH symbol types // SEH symbol types
SSEHUNWINDINFO SSEHUNWINDINFO
@ -171,6 +172,7 @@ var AbiSymKindToSymKind = [...]SymKind{
objabi.SDWARFRANGE: SDWARFRANGE, objabi.SDWARFRANGE: SDWARFRANGE,
objabi.SDWARFLOC: SDWARFLOC, objabi.SDWARFLOC: SDWARFLOC,
objabi.SDWARFLINES: SDWARFLINES, objabi.SDWARFLINES: SDWARFLINES,
objabi.SDWARFADDR: SDWARFADDR,
objabi.SLIBFUZZER_8BIT_COUNTER: SLIBFUZZER_8BIT_COUNTER, objabi.SLIBFUZZER_8BIT_COUNTER: SLIBFUZZER_8BIT_COUNTER,
objabi.SCOVERAGE_COUNTER: SCOVERAGE_COUNTER, objabi.SCOVERAGE_COUNTER: SCOVERAGE_COUNTER,
objabi.SCOVERAGE_AUXVAR: SCOVERAGE_AUXVAR, objabi.SCOVERAGE_AUXVAR: SCOVERAGE_AUXVAR,
@ -232,5 +234,5 @@ func (t SymKind) IsNOPTRDATA() bool {
} }
func (t SymKind) IsDWARF() bool { func (t SymKind) IsDWARF() bool {
return SDWARFSECT <= t && t <= SDWARFLINES return SDWARFSECT <= t && t <= SDWARFADDR
} }

9
src/cmd/link/internal/sym/symkind_string.go
View file

@ -85,13 +85,14 @@ func _() {
_ = x[SDWARFRANGE-74] _ = x[SDWARFRANGE-74]
_ = x[SDWARFLOC-75] _ = x[SDWARFLOC-75]
_ = x[SDWARFLINES-76] _ = x[SDWARFLINES-76]
_ = x[SSEHUNWINDINFO-77] _ = x[SDWARFADDR-77]
_ = x[SSEHSECT-78] _ = x[SSEHUNWINDINFO-78]
_ = x[SSEHSECT-79]
} }
const _SymKind_name = "SxxxSTEXTSTEXTFIPSSTARTSTEXTFIPSSTEXTFIPSENDSTEXTENDSELFRXSECTSMACHOPLTSTYPESSTRINGSGOSTRINGSGOFUNCSGCBITSSRODATASRODATAFIPSSTARTSRODATAFIPSSRODATAFIPSENDSRODATAENDSFUNCTABSELFROSECTSTYPERELROSSTRINGRELROSGOSTRINGRELROSGOFUNCRELROSGCBITSRELROSRODATARELROSFUNCTABRELROSELFRELROSECTSTYPELINKSITABLINKSSYMTABSPCLNTABSFirstWritableSBUILDINFOSFIPSINFOSELFSECTSMACHOSMACHOGOTSWINDOWSSELFGOTSNOPTRDATASNOPTRDATAFIPSSTARTSNOPTRDATAFIPSSNOPTRDATAFIPSENDSNOPTRDATAENDSINITARRSDATASDATAFIPSSTARTSDATAFIPSSDATAFIPSENDSDATAENDSXCOFFTOCSBSSSNOPTRBSSSLIBFUZZER_8BIT_COUNTERSCOVERAGE_COUNTERSCOVERAGE_AUXVARSTLSBSSSXREFSMACHOSYMSTRSMACHOSYMTABSMACHOINDIRECTPLTSMACHOINDIRECTGOTSFILEPATHSDYNIMPORTSHOSTOBJSUNDEFEXTSDWARFSECTSDWARFCUINFOSDWARFCONSTSDWARFFCNSDWARFABSFCNSDWARFTYPESDWARFVARSDWARFRANGESDWARFLOCSDWARFLINESSSEHUNWINDINFOSSEHSECT" const _SymKind_name = "SxxxSTEXTSTEXTFIPSSTARTSTEXTFIPSSTEXTFIPSENDSTEXTENDSELFRXSECTSMACHOPLTSTYPESSTRINGSGOSTRINGSGOFUNCSGCBITSSRODATASRODATAFIPSSTARTSRODATAFIPSSRODATAFIPSENDSRODATAENDSFUNCTABSELFROSECTSTYPERELROSSTRINGRELROSGOSTRINGRELROSGOFUNCRELROSGCBITSRELROSRODATARELROSFUNCTABRELROSELFRELROSECTSTYPELINKSITABLINKSSYMTABSPCLNTABSFirstWritableSBUILDINFOSFIPSINFOSELFSECTSMACHOSMACHOGOTSWINDOWSSELFGOTSNOPTRDATASNOPTRDATAFIPSSTARTSNOPTRDATAFIPSSNOPTRDATAFIPSENDSNOPTRDATAENDSINITARRSDATASDATAFIPSSTARTSDATAFIPSSDATAFIPSENDSDATAENDSXCOFFTOCSBSSSNOPTRBSSSLIBFUZZER_8BIT_COUNTERSCOVERAGE_COUNTERSCOVERAGE_AUXVARSTLSBSSSXREFSMACHOSYMSTRSMACHOSYMTABSMACHOINDIRECTPLTSMACHOINDIRECTGOTSFILEPATHSDYNIMPORTSHOSTOBJSUNDEFEXTSDWARFSECTSDWARFCUINFOSDWARFCONSTSDWARFFCNSDWARFABSFCNSDWARFTYPESDWARFVARSDWARFRANGESDWARFLOCSDWARFLINESSDWARFADDRSSEHUNWINDINFOSSEHSECT"
var _SymKind_index = [...]uint16{0, 4, 9, 23, 32, 44, 52, 62, 71, 76, 83, 92, 99, 106, 113, 129, 140, 154, 164, 172, 182, 192, 204, 218, 230, 242, 254, 267, 280, 289, 298, 305, 313, 327, 337, 346, 354, 360, 369, 377, 384, 394, 413, 427, 444, 457, 465, 470, 484, 493, 505, 513, 522, 526, 535, 558, 575, 591, 598, 603, 615, 627, 644, 661, 670, 680, 688, 697, 707, 719, 730, 739, 751, 761, 770, 781, 790, 801, 815, 823} var _SymKind_index = [...]uint16{0, 4, 9, 23, 32, 44, 52, 62, 71, 76, 83, 92, 99, 106, 113, 129, 140, 154, 164, 172, 182, 192, 204, 218, 230, 242, 254, 267, 280, 289, 298, 305, 313, 327, 337, 346, 354, 360, 369, 377, 384, 394, 413, 427, 444, 457, 465, 470, 484, 493, 505, 513, 522, 526, 535, 558, 575, 591, 598, 603, 615, 627, 644, 661, 670, 680, 688, 697, 707, 719, 730, 739, 751, 761, 770, 781, 790, 801, 811, 825, 833}
func (i SymKind) String() string { func (i SymKind) String() string {
if i >= SymKind(len(_SymKind_index)-1) { if i >= SymKind(len(_SymKind_index)-1) {