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check-object: dump PT flags when dumping program headers

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This commit is contained in:
Jakub Konka 2023-07-20 15:36:58 +02:00
parent e8b613783f
commit 3b6200db41
1 changed files with 79 additions and 58 deletions
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137
lib/std/Build/Step/CheckObject.zig
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@ -950,6 +950,8 @@ const ElfDumper = struct {
fn dumpShdrs(ctx: Context, writer: anytype) !void {
if (ctx.shdrs.len == 0) return;
try writer.writeAll("section headers\n");
for (ctx.shdrs, 0..) |shdr, shndx| {
try writer.print("shdr {d}\n", .{shndx});
try writer.print("name {s}\n", .{getSectionName(ctx, shndx)});
@ -1113,46 +1115,46 @@ const ElfDumper = struct {
) !void {
_ = unused_fmt_string;
_ = options;
if (elf.SHT_LOOS <= sh_type and sh_type < elf.SHT_HIOS) {
try writer.print("LOOS+0x{x}", .{sh_type - elf.SHT_LOOS});
} else if (elf.SHT_LOPROC <= sh_type and sh_type < elf.SHT_HIPROC) {
try writer.print("LOPROC+0x{x}", .{sh_type - elf.SHT_LOPROC});
} else if (elf.SHT_LOUSER <= sh_type and sh_type < elf.SHT_HIUSER) {
try writer.print("LOUSER+0x{x}", .{sh_type - elf.SHT_LOUSER});
} else {
const name = switch (sh_type) {
elf.SHT_NULL => "NULL",
elf.SHT_PROGBITS => "PROGBITS",
elf.SHT_SYMTAB => "SYMTAB",
elf.SHT_STRTAB => "STRTAB",
elf.SHT_RELA => "RELA",
elf.SHT_HASH => "HASH",
elf.SHT_DYNAMIC => "DYNAMIC",
elf.SHT_NOTE => "NOTE",
elf.SHT_NOBITS => "NOBITS",
elf.SHT_REL => "REL",
elf.SHT_SHLIB => "SHLIB",
elf.SHT_DYNSYM => "DYNSYM",
elf.SHT_INIT_ARRAY => "INIT_ARRAY",
elf.SHT_FINI_ARRAY => "FINI_ARRAY",
elf.SHT_PREINIT_ARRAY => "PREINIT_ARRAY",
elf.SHT_GROUP => "GROUP",
elf.SHT_SYMTAB_SHNDX => "SYMTAB_SHNDX",
elf.SHT_X86_64_UNWIND => "X86_64_UNWIND",
elf.SHT_LLVM_ADDRSIG => "LLVM_ADDRSIG",
elf.SHT_GNU_HASH => "GNU_HASH",
elf.SHT_GNU_VERDEF => "VERDEF",
elf.SHT_GNU_VERNEED => "VERNEED",
elf.SHT_GNU_VERSYM => "VERSYM",
else => "UNKNOWN",
};
try writer.writeAll(name);
}
const name = switch (sh_type) {
elf.SHT_NULL => "NULL",
elf.SHT_PROGBITS => "PROGBITS",
elf.SHT_SYMTAB => "SYMTAB",
elf.SHT_STRTAB => "STRTAB",
elf.SHT_RELA => "RELA",
elf.SHT_HASH => "HASH",
elf.SHT_DYNAMIC => "DYNAMIC",
elf.SHT_NOTE => "NOTE",
elf.SHT_NOBITS => "NOBITS",
elf.SHT_REL => "REL",
elf.SHT_SHLIB => "SHLIB",
elf.SHT_DYNSYM => "DYNSYM",
elf.SHT_INIT_ARRAY => "INIT_ARRAY",
elf.SHT_FINI_ARRAY => "FINI_ARRAY",
elf.SHT_PREINIT_ARRAY => "PREINIT_ARRAY",
elf.SHT_GROUP => "GROUP",
elf.SHT_SYMTAB_SHNDX => "SYMTAB_SHNDX",
elf.SHT_X86_64_UNWIND => "X86_64_UNWIND",
elf.SHT_LLVM_ADDRSIG => "LLVM_ADDRSIG",
elf.SHT_GNU_HASH => "GNU_HASH",
elf.SHT_GNU_VERDEF => "VERDEF",
elf.SHT_GNU_VERNEED => "VERNEED",
elf.SHT_GNU_VERSYM => "VERSYM",
else => if (elf.SHT_LOOS <= sh_type and sh_type < elf.SHT_HIOS) {
return try writer.print("LOOS+0x{x}", .{sh_type - elf.SHT_LOOS});
} else if (elf.SHT_LOPROC <= sh_type and sh_type < elf.SHT_HIPROC) {
return try writer.print("LOPROC+0x{x}", .{sh_type - elf.SHT_LOPROC});
} else if (elf.SHT_LOUSER <= sh_type and sh_type < elf.SHT_HIUSER) {
return try writer.print("LOUSER+0x{x}", .{sh_type - elf.SHT_LOUSER});
} else "UNKNOWN",
};
try writer.writeAll(name);
}
fn dumpPhdrs(ctx: Context, writer: anytype) !void {
if (ctx.phdrs.len == 0) return;
try writer.writeAll("program headers\n");
for (ctx.phdrs, 0..) |phdr, phndx| {
try writer.print("phdr {d}\n", .{phndx});
try writer.print("type {s}\n", .{fmtPhType(phdr.p_type)});
@ -1162,7 +1164,28 @@ const ElfDumper = struct {
try writer.print("memsz {x}\n", .{phdr.p_memsz});
try writer.print("filesz {x}\n", .{phdr.p_filesz});
try writer.print("align {x}\n", .{phdr.p_align});
// TODO dump formatted p_flags
{
const flags = phdr.p_flags;
try writer.writeAll("flags");
if (flags > 0) try writer.writeByte(' ');
if (flags & elf.PF_R != 0) {
try writer.writeByte('R');
}
if (flags & elf.PF_W != 0) {
try writer.writeByte('W');
}
if (flags & elf.PF_X != 0) {
try writer.writeByte('E');
}
if (flags & elf.PF_MASKOS != 0) {
try writer.writeAll("OS");
}
if (flags & elf.PF_MASKPROC != 0) {
try writer.writeAll("PROC");
}
try writer.writeByte('\n');
}
}
}
@ -1178,28 +1201,26 @@ const ElfDumper = struct {
) !void {
_ = unused_fmt_string;
_ = options;
if (elf.PT_LOOS <= ph_type and ph_type < elf.PT_HIOS) {
try writer.print("LOOS+0x{x}", .{ph_type - elf.PT_LOOS});
} else if (elf.PT_LOPROC <= ph_type and ph_type < elf.PT_HIPROC) {
try writer.print("LOPROC+0x{x}", .{ph_type - elf.PT_LOPROC});
} else {
const p_type = switch (ph_type) {
elf.PT_NULL => "NULL",
elf.PT_LOAD => "LOAD",
elf.PT_DYNAMIC => "DYNAMIC",
elf.PT_INTERP => "INTERP",
elf.PT_NOTE => "NOTE",
elf.PT_SHLIB => "SHLIB",
elf.PT_PHDR => "PHDR",
elf.PT_TLS => "TLS",
elf.PT_NUM => "NUM",
elf.PT_GNU_EH_FRAME => "GNU_EH_FRAME",
elf.PT_GNU_STACK => "GNU_STACK",
elf.PT_GNU_RELRO => "GNU_RELRO",
else => "UNKNOWN",
};
try writer.writeAll(p_type);
}
const p_type = switch (ph_type) {
elf.PT_NULL => "NULL",
elf.PT_LOAD => "LOAD",
elf.PT_DYNAMIC => "DYNAMIC",
elf.PT_INTERP => "INTERP",
elf.PT_NOTE => "NOTE",
elf.PT_SHLIB => "SHLIB",
elf.PT_PHDR => "PHDR",
elf.PT_TLS => "TLS",
elf.PT_NUM => "NUM",
elf.PT_GNU_EH_FRAME => "GNU_EH_FRAME",
elf.PT_GNU_STACK => "GNU_STACK",
elf.PT_GNU_RELRO => "GNU_RELRO",
else => if (elf.PT_LOOS <= ph_type and ph_type < elf.PT_HIOS) {
return try writer.print("LOOS+0x{x}", .{ph_type - elf.PT_LOOS});
} else if (elf.PT_LOPROC <= ph_type and ph_type < elf.PT_HIPROC) {
return try writer.print("LOPROC+0x{x}", .{ph_type - elf.PT_LOPROC});
} else "UNKNOWN",
};
try writer.writeAll(p_type);
}
fn dumpSymtab(ctx: Context, comptime @"type": enum { symtab, dysymtab }, writer: anytype) !void {