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debug/elf: add riscv attributes definitions
This CL adds `riscv.attributes` related ELF section header type and program header type according to [RISC-V ELF Specification](https://github.com/riscv-non-isa/riscv-elf-psabi-doc/releases/download/v1.0/riscv-abi.pdf) Also an riscv64/linux testcase binary built from: ``` gcc -march=rv64g -no-pie -o gcc-riscv64-linux-exec hello.c strip gcc-riscv64-linux-exec ``` Fixes #72843 Change-Id: I7710a0516f69141c0efaba71dd997f05b4c88421 Reviewed-on: https://go-review.googlesource.com/c/go/+/657515 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: David Chase <drchase@google.com> Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Meng Zhuo
Gopher Robot
parent
853b514417
commit
5bb73e6504
4
api/next/72843.txt
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4
api/next/72843.txt
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@ -0,0 +1,4 @@
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pkg debug/elf, const PT_RISCV_ATTRIBUTES = 1879048195 #72843
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pkg debug/elf, const PT_RISCV_ATTRIBUTES ProgType #72843
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pkg debug/elf, const SHT_RISCV_ATTRIBUTES = 1879048195 #72843
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pkg debug/elf, const SHT_RISCV_ATTRIBUTES SectionType #72843
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4
doc/next/6-stdlib/99-minor/debug/elf/72843.md
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4
doc/next/6-stdlib/99-minor/debug/elf/72843.md
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@ -0,0 +1,4 @@
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The [debug/elf] package adds two new constants:
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- [PT_RISCV_ATTRIBUTES]
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- [SHT_RISCV_ATTRIBUTES]
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for RISC-V ELF parsing.
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@ -620,36 +620,37 @@ func (i SectionIndex) GoString() string { return stringName(uint32(i), shnString
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type SectionType uint32
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const (
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SHT_NULL SectionType = 0 /* inactive */
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SHT_PROGBITS SectionType = 1 /* program defined information */
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SHT_SYMTAB SectionType = 2 /* symbol table section */
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SHT_STRTAB SectionType = 3 /* string table section */
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SHT_RELA SectionType = 4 /* relocation section with addends */
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SHT_HASH SectionType = 5 /* symbol hash table section */
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SHT_DYNAMIC SectionType = 6 /* dynamic section */
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SHT_NOTE SectionType = 7 /* note section */
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SHT_NOBITS SectionType = 8 /* no space section */
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SHT_REL SectionType = 9 /* relocation section - no addends */
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SHT_SHLIB SectionType = 10 /* reserved - purpose unknown */
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SHT_DYNSYM SectionType = 11 /* dynamic symbol table section */
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SHT_INIT_ARRAY SectionType = 14 /* Initialization function pointers. */
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SHT_FINI_ARRAY SectionType = 15 /* Termination function pointers. */
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SHT_PREINIT_ARRAY SectionType = 16 /* Pre-initialization function ptrs. */
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SHT_GROUP SectionType = 17 /* Section group. */
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SHT_SYMTAB_SHNDX SectionType = 18 /* Section indexes (see SHN_XINDEX). */
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SHT_LOOS SectionType = 0x60000000 /* First of OS specific semantics */
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SHT_GNU_ATTRIBUTES SectionType = 0x6ffffff5 /* GNU object attributes */
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SHT_GNU_HASH SectionType = 0x6ffffff6 /* GNU hash table */
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SHT_GNU_LIBLIST SectionType = 0x6ffffff7 /* GNU prelink library list */
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SHT_GNU_VERDEF SectionType = 0x6ffffffd /* GNU version definition section */
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SHT_GNU_VERNEED SectionType = 0x6ffffffe /* GNU version needs section */
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SHT_GNU_VERSYM SectionType = 0x6fffffff /* GNU version symbol table */
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SHT_HIOS SectionType = 0x6fffffff /* Last of OS specific semantics */
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SHT_LOPROC SectionType = 0x70000000 /* reserved range for processor */
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SHT_MIPS_ABIFLAGS SectionType = 0x7000002a /* .MIPS.abiflags */
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SHT_HIPROC SectionType = 0x7fffffff /* specific section header types */
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SHT_LOUSER SectionType = 0x80000000 /* reserved range for application */
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SHT_HIUSER SectionType = 0xffffffff /* specific indexes */
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SHT_NULL SectionType = 0 /* inactive */
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SHT_PROGBITS SectionType = 1 /* program defined information */
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SHT_SYMTAB SectionType = 2 /* symbol table section */
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SHT_STRTAB SectionType = 3 /* string table section */
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SHT_RELA SectionType = 4 /* relocation section with addends */
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SHT_HASH SectionType = 5 /* symbol hash table section */
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SHT_DYNAMIC SectionType = 6 /* dynamic section */
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SHT_NOTE SectionType = 7 /* note section */
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SHT_NOBITS SectionType = 8 /* no space section */
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SHT_REL SectionType = 9 /* relocation section - no addends */
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SHT_SHLIB SectionType = 10 /* reserved - purpose unknown */
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SHT_DYNSYM SectionType = 11 /* dynamic symbol table section */
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SHT_INIT_ARRAY SectionType = 14 /* Initialization function pointers. */
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SHT_FINI_ARRAY SectionType = 15 /* Termination function pointers. */
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SHT_PREINIT_ARRAY SectionType = 16 /* Pre-initialization function ptrs. */
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SHT_GROUP SectionType = 17 /* Section group. */
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SHT_SYMTAB_SHNDX SectionType = 18 /* Section indexes (see SHN_XINDEX). */
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SHT_LOOS SectionType = 0x60000000 /* First of OS specific semantics */
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SHT_GNU_ATTRIBUTES SectionType = 0x6ffffff5 /* GNU object attributes */
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SHT_GNU_HASH SectionType = 0x6ffffff6 /* GNU hash table */
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SHT_GNU_LIBLIST SectionType = 0x6ffffff7 /* GNU prelink library list */
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SHT_GNU_VERDEF SectionType = 0x6ffffffd /* GNU version definition section */
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SHT_GNU_VERNEED SectionType = 0x6ffffffe /* GNU version needs section */
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SHT_GNU_VERSYM SectionType = 0x6fffffff /* GNU version symbol table */
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SHT_HIOS SectionType = 0x6fffffff /* Last of OS specific semantics */
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SHT_LOPROC SectionType = 0x70000000 /* reserved range for processor */
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SHT_RISCV_ATTRIBUTES SectionType = 0x70000003 /* RISCV object attributes */
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SHT_MIPS_ABIFLAGS SectionType = 0x7000002a /* .MIPS.abiflags */
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SHT_HIPROC SectionType = 0x7fffffff /* specific section header types */
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SHT_LOUSER SectionType = 0x80000000 /* reserved range for application */
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SHT_HIUSER SectionType = 0xffffffff /* specific indexes */
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)
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var shtStrings = []intName{
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@ -678,6 +679,8 @@ var shtStrings = []intName{
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{0x6ffffffe, "SHT_GNU_VERNEED"},
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{0x6fffffff, "SHT_GNU_VERSYM"},
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{0x70000000, "SHT_LOPROC"},
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// We don't list the processor-dependent SectionType,
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// as the values overlap.
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{0x7000002a, "SHT_MIPS_ABIFLAGS"},
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{0x7fffffff, "SHT_HIPROC"},
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{0x80000000, "SHT_LOUSER"},
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@ -794,6 +797,8 @@ const (
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PT_MIPS_OPTIONS ProgType = 0x70000002 /* Options */
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PT_MIPS_ABIFLAGS ProgType = 0x70000003 /* ABI flags */
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PT_RISCV_ATTRIBUTES ProgType = 0x70000003 /* RISC-V ELF attribute section. */
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PT_S390_PGSTE ProgType = 0x70000000 /* 4k page table size */
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PT_HIPROC ProgType = 0x7fffffff /* Last processor-specific type. */
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@ -447,6 +447,52 @@ var fileTests = []fileTest{
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{"puts", 16, 0, false, 0, 0, 0, 0, "", ""},
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},
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},
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{
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"testdata/gcc-riscv64-linux-exec",
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FileHeader{ELFCLASS64, ELFDATA2LSB, EV_CURRENT, ELFOSABI_NONE, 0, binary.LittleEndian, ET_EXEC, EM_RISCV, 0x10460},
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[]SectionHeader{
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{"", SHT_NULL, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
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{".interp", SHT_PROGBITS, SHF_ALLOC, 0x10270, 0x270, 0x21, 0x0, 0x0, 0x1, 0x0, 0x21},
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{".note.gnu.build-id", SHT_NOTE, SHF_ALLOC, 0x10294, 0x294, 0x24, 0x0, 0x0, 0x4, 0x0, 0x24},
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{".note.ABI-tag", SHT_NOTE, SHF_ALLOC, 0x102b8, 0x2b8, 0x20, 0x0, 0x0, 0x4, 0x0, 0x20},
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{".gnu.hash", SHT_GNU_HASH, SHF_ALLOC, 0x102d8, 0x2d8, 0x30, 0x5, 0x0, 0x8, 0x0, 0x30},
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{".dynsym", SHT_DYNSYM, SHF_ALLOC, 0x10308, 0x308, 0x60, 0x6, 0x1, 0x8, 0x18, 0x60},
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{".dynstr", SHT_STRTAB, SHF_ALLOC, 0x10368, 0x368, 0x4a, 0x0, 0x0, 0x1, 0x0, 0x4a},
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{".gnu.version", SHT_GNU_VERSYM, SHF_ALLOC, 0x103b2, 0x3b2, 0x8, 0x5, 0x0, 0x2, 0x2, 0x8},
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{".gnu.version_r", SHT_GNU_VERNEED, SHF_ALLOC, 0x103c0, 0x3c0, 0x30, 0x6, 0x1, 0x8, 0x0, 0x30},
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{".rela.plt", SHT_RELA, SHF_ALLOC + SHF_INFO_LINK, 0x103f0, 0x3f0, 0x30, 0x5, 0x14, 0x8, 0x18, 0x30},
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{".plt", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR, 0x10420, 0x420, 0x40, 0x0, 0x0, 0x10, 0x10, 0x40},
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{".text", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR, 0x10460, 0x460, 0xd8, 0x0, 0x0, 0x4, 0x0, 0xd8},
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{".rodata", SHT_PROGBITS, SHF_ALLOC, 0x10538, 0x538, 0x15, 0x0, 0x0, 0x8, 0x0, 0x15},
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{".eh_frame_hdr", SHT_PROGBITS, SHF_ALLOC, 0x10550, 0x550, 0x24, 0x0, 0x0, 0x4, 0x0, 0x24},
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{".eh_frame", SHT_PROGBITS, SHF_ALLOC, 0x10578, 0x578, 0x6c, 0x0, 0x0, 0x8, 0x0, 0x6c},
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{".preinit_array", SHT_PREINIT_ARRAY, SHF_WRITE + SHF_ALLOC, 0x11e00, 0xe00, 0x8, 0x0, 0x0, 0x1, 0x8, 0x8},
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{".init_array", SHT_INIT_ARRAY, SHF_WRITE + SHF_ALLOC, 0x11e08, 0xe08, 0x8, 0x0, 0x0, 0x8, 0x8, 0x8},
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{".fini_array", SHT_FINI_ARRAY, SHF_WRITE + SHF_ALLOC, 0x11e10, 0xe10, 0x8, 0x0, 0x0, 0x8, 0x8, 0x8},
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{".dynamic", SHT_DYNAMIC, SHF_WRITE + SHF_ALLOC, 0x11e18, 0xe18, 0x1d0, 0x6, 0x0, 0x8, 0x10, 0x1d0},
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{".got", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x11fe8, 0xfe8, 0x8, 0x0, 0x0, 0x8, 0x8, 0x8},
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{".got.plt", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x11ff0, 0xff0, 0x20, 0x0, 0x0, 0x8, 0x8, 0x20},
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{".sdata", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x12010, 0x1010, 0x8, 0x0, 0x0, 0x8, 0x0, 0x8},
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{".bss", SHT_NOBITS, SHF_WRITE + SHF_ALLOC, 0x12018, 0x1018, 0x8, 0x0, 0x0, 0x1, 0x0, 0x8},
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{".comment", SHT_PROGBITS, SHF_MERGE + SHF_STRINGS, 0x0, 0x1018, 0x26, 0x0, 0x0, 0x1, 0x1, 0x26},
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{".riscv.attributes", SHT_RISCV_ATTRIBUTES, 0x0, 0x0, 0x103e, 0x66, 0x0, 0x0, 0x1, 0x0, 0x66},
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{".shstrtab", SHT_STRTAB, 0x0, 0x0, 0x10a4, 0xff, 0x0, 0x0, 0x1, 0x0, 0xff},
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},
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[]ProgHeader{
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{PT_PHDR, PF_R, 0x40, 0x10040, 0x10040, 0x230, 0x230, 0x8},
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{PT_INTERP, PF_R, 0x270, 0x10270, 0x10270, 0x21, 0x21, 0x1},
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{PT_RISCV_ATTRIBUTES, PF_R, 0x103e, 0x0, 0x0, 0x66, 0x0, 0x1},
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{PT_LOAD, PF_X + PF_R, 0x0, 0x10000, 0x10000, 0x5e4, 0x5e4, 0x1000},
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{PT_LOAD, PF_W + PF_R, 0xe00, 0x11e00, 0x11e00, 0x218, 0x220, 0x1000},
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{PT_DYNAMIC, PF_W + PF_R, 0xe18, 0x11e18, 0x11e18, 0x1d0, 0x1d0, 0x8},
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{PT_NOTE, PF_R, 0x294, 0x10294, 0x10294, 0x44, 0x44, 0x4},
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{PT_GNU_EH_FRAME, PF_R, 0x550, 0x10550, 0x10550, 0x24, 0x24, 0x4},
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{PT_GNU_STACK, PF_W + PF_R, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10},
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{PT_GNU_RELRO, PF_R, 0xe00, 0x11e00, 0x11e00, 0x200, 0x200, 0x1},
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},
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[]string{"libc.so.6"},
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nil,
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},
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}
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func TestOpen(t *testing.T) {
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BIN
src/debug/elf/testdata/gcc-riscv64-linux-exec
vendored
Normal file
BIN
src/debug/elf/testdata/gcc-riscv64-linux-exec
vendored
Normal file
Binary file not shown.
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