diff options
Diffstat (limited to 'vendor/github.com/bytedance/sonic/loader/funcdata_go123.go')
| -rw-r--r-- | vendor/github.com/bytedance/sonic/loader/funcdata_go123.go | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/vendor/github.com/bytedance/sonic/loader/funcdata_go123.go b/vendor/github.com/bytedance/sonic/loader/funcdata_go123.go new file mode 100644 index 000000000..a50cd364f --- /dev/null +++ b/vendor/github.com/bytedance/sonic/loader/funcdata_go123.go @@ -0,0 +1,118 @@ +//go:build go1.23 && !go1.24 +// +build go1.23,!go1.24 + +/* + * Copyright 2021 ByteDance Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package loader + +import ( + `unsafe` + `github.com/bytedance/sonic/loader/internal/rt` +) + +const ( + _Magic uint32 = 0xFFFFFFF1 +) + +type moduledata struct { + pcHeader *pcHeader + funcnametab []byte + cutab []uint32 + filetab []byte + pctab []byte + pclntable []byte + ftab []funcTab + findfunctab uintptr + minpc, maxpc uintptr // first func address, last func address + last func size + + text, etext uintptr // start/end of text, (etext-text) must be greater than MIN_FUNC + noptrdata, enoptrdata uintptr + data, edata uintptr + bss, ebss uintptr + noptrbss, enoptrbss uintptr + covctrs, ecovctrs uintptr + end, gcdata, gcbss uintptr + types, etypes uintptr + rodata uintptr + gofunc uintptr // go.func.* is actual funcinfo object in image + + textsectmap []textSection // see runtime/symtab.go: textAddr() + typelinks []int32 // offsets from types + itablinks []*rt.GoItab + + ptab []ptabEntry + + pluginpath string + pkghashes []modulehash + + // This slice records the initializing tasks that need to be + // done to start up the program. It is built by the linker. + inittasks []unsafe.Pointer + + modulename string + modulehashes []modulehash + + hasmain uint8 // 1 if module contains the main function, 0 otherwise + bad bool // module failed to load and should be ignored + + gcdatamask, gcbssmask bitVector + + typemap map[int32]*rt.GoType // offset to *_rtype in previous module + + next *moduledata +} + +type _func struct { + entryOff uint32 // start pc, as offset from moduledata.text/pcHeader.textStart + nameOff int32 // function name, as index into moduledata.funcnametab. + + args int32 // in/out args size + deferreturn uint32 // offset of start of a deferreturn call instruction from entry, if any. + + pcsp uint32 + pcfile uint32 + pcln uint32 + npcdata uint32 + cuOffset uint32 // runtime.cutab offset of this function's CU + startLine int32 // line number of start of function (func keyword/TEXT directive) + funcID uint8 // set for certain special runtime functions + flag uint8 + _ [1]byte // pad + nfuncdata uint8 // + + // The end of the struct is followed immediately by two variable-length + // arrays that reference the pcdata and funcdata locations for this + // function. + + // pcdata contains the offset into moduledata.pctab for the start of + // that index's table. e.g., + // &moduledata.pctab[_func.pcdata[_PCDATA_UnsafePoint]] is the start of + // the unsafe point table. + // + // An offset of 0 indicates that there is no table. + // + // pcdata [npcdata]uint32 + + // funcdata contains the offset past moduledata.gofunc which contains a + // pointer to that index's funcdata. e.g., + // *(moduledata.gofunc + _func.funcdata[_FUNCDATA_ArgsPointerMaps]) is + // the argument pointer map. + // + // An offset of ^uint32(0) indicates that there is no entry. + // + // funcdata [nfuncdata]uint32 +} |