authorgravatar for kubkon@jakubkonka.comJakub Konka <kubkon@jakubkonka.com> 2023-07-20 15:36:58+02:00
committergravatar for kubkon@jakubkonka.comJakub Konka <kubkon@jakubkonka.com> 2023-07-20 20:01:06+02:00
log3b6200db41f201839a7238c95ddc2e1323d8acbd
treec37cb9e29720df1f403dc5214c3222fa5a35ac9b
parente8b613783f383b39018cb83b2b141f991c2bc7ae

check-object: dump PT flags when dumping program headers

1 files changed, 79 insertions(+), 58 deletions(-)

lib/std/Build/Step/CheckObject.zig+79-58
...@@ -950,6 +950,8 @@ const ElfDumper = struct {...@@ -950,6 +950,8 @@ const ElfDumper = struct {
950 fn dumpShdrs(ctx: Context, writer: anytype) !void {950 fn dumpShdrs(ctx: Context, writer: anytype) !void {
951 if (ctx.shdrs.len == 0) return;951 if (ctx.shdrs.len == 0) return;
952952
953 try writer.writeAll("section headers\n");
954
953 for (ctx.shdrs, 0..) |shdr, shndx| {955 for (ctx.shdrs, 0..) |shdr, shndx| {
954 try writer.print("shdr {d}\n", .{shndx});956 try writer.print("shdr {d}\n", .{shndx});
955 try writer.print("name {s}\n", .{getSectionName(ctx, shndx)});957 try writer.print("name {s}\n", .{getSectionName(ctx, shndx)});
...@@ -1113,46 +1115,46 @@ const ElfDumper = struct {...@@ -1113,46 +1115,46 @@ const ElfDumper = struct {
1113 ) !void {1115 ) !void {
1114 _ = unused_fmt_string;1116 _ = unused_fmt_string;
1115 _ = options;1117 _ = options;
1116 if (elf.SHT_LOOS <= sh_type and sh_type < elf.SHT_HIOS) {1118 const name = switch (sh_type) {
1117 try writer.print("LOOS+0x{x}", .{sh_type - elf.SHT_LOOS});1119 elf.SHT_NULL => "NULL",
1118 } else if (elf.SHT_LOPROC <= sh_type and sh_type < elf.SHT_HIPROC) {1120 elf.SHT_PROGBITS => "PROGBITS",
1119 try writer.print("LOPROC+0x{x}", .{sh_type - elf.SHT_LOPROC});1121 elf.SHT_SYMTAB => "SYMTAB",
1120 } else if (elf.SHT_LOUSER <= sh_type and sh_type < elf.SHT_HIUSER) {1122 elf.SHT_STRTAB => "STRTAB",
1121 try writer.print("LOUSER+0x{x}", .{sh_type - elf.SHT_LOUSER});1123 elf.SHT_RELA => "RELA",
1122 } else {1124 elf.SHT_HASH => "HASH",
1123 const name = switch (sh_type) {1125 elf.SHT_DYNAMIC => "DYNAMIC",
1124 elf.SHT_NULL => "NULL",1126 elf.SHT_NOTE => "NOTE",
1125 elf.SHT_PROGBITS => "PROGBITS",1127 elf.SHT_NOBITS => "NOBITS",
1126 elf.SHT_SYMTAB => "SYMTAB",1128 elf.SHT_REL => "REL",
1127 elf.SHT_STRTAB => "STRTAB",1129 elf.SHT_SHLIB => "SHLIB",
1128 elf.SHT_RELA => "RELA",1130 elf.SHT_DYNSYM => "DYNSYM",
1129 elf.SHT_HASH => "HASH",1131 elf.SHT_INIT_ARRAY => "INIT_ARRAY",
1130 elf.SHT_DYNAMIC => "DYNAMIC",1132 elf.SHT_FINI_ARRAY => "FINI_ARRAY",
1131 elf.SHT_NOTE => "NOTE",1133 elf.SHT_PREINIT_ARRAY => "PREINIT_ARRAY",
1132 elf.SHT_NOBITS => "NOBITS",1134 elf.SHT_GROUP => "GROUP",
1133 elf.SHT_REL => "REL",1135 elf.SHT_SYMTAB_SHNDX => "SYMTAB_SHNDX",
1134 elf.SHT_SHLIB => "SHLIB",1136 elf.SHT_X86_64_UNWIND => "X86_64_UNWIND",
1135 elf.SHT_DYNSYM => "DYNSYM",1137 elf.SHT_LLVM_ADDRSIG => "LLVM_ADDRSIG",
1136 elf.SHT_INIT_ARRAY => "INIT_ARRAY",1138 elf.SHT_GNU_HASH => "GNU_HASH",
1137 elf.SHT_FINI_ARRAY => "FINI_ARRAY",1139 elf.SHT_GNU_VERDEF => "VERDEF",
1138 elf.SHT_PREINIT_ARRAY => "PREINIT_ARRAY",1140 elf.SHT_GNU_VERNEED => "VERNEED",
1139 elf.SHT_GROUP => "GROUP",1141 elf.SHT_GNU_VERSYM => "VERSYM",
1140 elf.SHT_SYMTAB_SHNDX => "SYMTAB_SHNDX",1142 else => if (elf.SHT_LOOS <= sh_type and sh_type < elf.SHT_HIOS) {
1141 elf.SHT_X86_64_UNWIND => "X86_64_UNWIND",1143 return try writer.print("LOOS+0x{x}", .{sh_type - elf.SHT_LOOS});
1142 elf.SHT_LLVM_ADDRSIG => "LLVM_ADDRSIG",1144 } else if (elf.SHT_LOPROC <= sh_type and sh_type < elf.SHT_HIPROC) {
1143 elf.SHT_GNU_HASH => "GNU_HASH",1145 return try writer.print("LOPROC+0x{x}", .{sh_type - elf.SHT_LOPROC});
1144 elf.SHT_GNU_VERDEF => "VERDEF",1146 } else if (elf.SHT_LOUSER <= sh_type and sh_type < elf.SHT_HIUSER) {
1145 elf.SHT_GNU_VERNEED => "VERNEED",1147 return try writer.print("LOUSER+0x{x}", .{sh_type - elf.SHT_LOUSER});
1146 elf.SHT_GNU_VERSYM => "VERSYM",1148 } else "UNKNOWN",
1147 else => "UNKNOWN",1149 };
1148 };1150 try writer.writeAll(name);
1149 try writer.writeAll(name);
1150 }
1151 }1151 }
11521152
1153 fn dumpPhdrs(ctx: Context, writer: anytype) !void {1153 fn dumpPhdrs(ctx: Context, writer: anytype) !void {
1154 if (ctx.phdrs.len == 0) return;1154 if (ctx.phdrs.len == 0) return;
11551155
1156 try writer.writeAll("program headers\n");
1157
1156 for (ctx.phdrs, 0..) |phdr, phndx| {1158 for (ctx.phdrs, 0..) |phdr, phndx| {
1157 try writer.print("phdr {d}\n", .{phndx});1159 try writer.print("phdr {d}\n", .{phndx});
1158 try writer.print("type {s}\n", .{fmtPhType(phdr.p_type)});1160 try writer.print("type {s}\n", .{fmtPhType(phdr.p_type)});
...@@ -1162,7 +1164,28 @@ const ElfDumper = struct {...@@ -1162,7 +1164,28 @@ const ElfDumper = struct {
1162 try writer.print("memsz {x}\n", .{phdr.p_memsz});1164 try writer.print("memsz {x}\n", .{phdr.p_memsz});
1163 try writer.print("filesz {x}\n", .{phdr.p_filesz});1165 try writer.print("filesz {x}\n", .{phdr.p_filesz});
1164 try writer.print("align {x}\n", .{phdr.p_align});1166 try writer.print("align {x}\n", .{phdr.p_align});
1165 // TODO dump formatted p_flags1167
1168 {
1169 const flags = phdr.p_flags;
1170 try writer.writeAll("flags");
1171 if (flags > 0) try writer.writeByte(' ');
1172 if (flags & elf.PF_R != 0) {
1173 try writer.writeByte('R');
1174 }
1175 if (flags & elf.PF_W != 0) {
1176 try writer.writeByte('W');
1177 }
1178 if (flags & elf.PF_X != 0) {
1179 try writer.writeByte('E');
1180 }
1181 if (flags & elf.PF_MASKOS != 0) {
1182 try writer.writeAll("OS");
1183 }
1184 if (flags & elf.PF_MASKPROC != 0) {
1185 try writer.writeAll("PROC");
1186 }
1187 try writer.writeByte('\n');
1188 }
1166 }1189 }
1167 }1190 }
11681191
...@@ -1178,28 +1201,26 @@ const ElfDumper = struct {...@@ -1178,28 +1201,26 @@ const ElfDumper = struct {
1178 ) !void {1201 ) !void {
1179 _ = unused_fmt_string;1202 _ = unused_fmt_string;
1180 _ = options;1203 _ = options;
1181 if (elf.PT_LOOS <= ph_type and ph_type < elf.PT_HIOS) {1204 const p_type = switch (ph_type) {
1182 try writer.print("LOOS+0x{x}", .{ph_type - elf.PT_LOOS});1205 elf.PT_NULL => "NULL",
1183 } else if (elf.PT_LOPROC <= ph_type and ph_type < elf.PT_HIPROC) {1206 elf.PT_LOAD => "LOAD",
1184 try writer.print("LOPROC+0x{x}", .{ph_type - elf.PT_LOPROC});1207 elf.PT_DYNAMIC => "DYNAMIC",
1185 } else {1208 elf.PT_INTERP => "INTERP",
1186 const p_type = switch (ph_type) {1209 elf.PT_NOTE => "NOTE",
1187 elf.PT_NULL => "NULL",1210 elf.PT_SHLIB => "SHLIB",
1188 elf.PT_LOAD => "LOAD",1211 elf.PT_PHDR => "PHDR",
1189 elf.PT_DYNAMIC => "DYNAMIC",1212 elf.PT_TLS => "TLS",
1190 elf.PT_INTERP => "INTERP",1213 elf.PT_NUM => "NUM",
1191 elf.PT_NOTE => "NOTE",1214 elf.PT_GNU_EH_FRAME => "GNU_EH_FRAME",
1192 elf.PT_SHLIB => "SHLIB",1215 elf.PT_GNU_STACK => "GNU_STACK",
1193 elf.PT_PHDR => "PHDR",1216 elf.PT_GNU_RELRO => "GNU_RELRO",
1194 elf.PT_TLS => "TLS",1217 else => if (elf.PT_LOOS <= ph_type and ph_type < elf.PT_HIOS) {
1195 elf.PT_NUM => "NUM",1218 return try writer.print("LOOS+0x{x}", .{ph_type - elf.PT_LOOS});
1196 elf.PT_GNU_EH_FRAME => "GNU_EH_FRAME",1219 } else if (elf.PT_LOPROC <= ph_type and ph_type < elf.PT_HIPROC) {
1197 elf.PT_GNU_STACK => "GNU_STACK",1220 return try writer.print("LOPROC+0x{x}", .{ph_type - elf.PT_LOPROC});
1198 elf.PT_GNU_RELRO => "GNU_RELRO",1221 } else "UNKNOWN",
1199 else => "UNKNOWN",1222 };
1200 };1223 try writer.writeAll(p_type);
1201 try writer.writeAll(p_type);
1202 }
1203 }1224 }
12041225
1205 fn dumpSymtab(ctx: Context, comptime @"type": enum { symtab, dysymtab }, writer: anytype) !void {1226 fn dumpSymtab(ctx: Context, comptime @"type": enum { symtab, dysymtab }, writer: anytype) !void {