Elf2: improve emitted object files

lib/std/c.zig

@@ -3971,7 +3971,7 @@ pub const dl_phdr_info = switch (native_os) {
         /// Module name.
         name: ?[*:0]const u8,
         /// Pointer to module's phdr.
-        phdr: [*]std.elf.Phdr,
+        phdr: [*]std.elf.ElfN.Phdr,
         /// Number of entries in phdr.
         phnum: u16,
         /// Total number of loads.
@@ -3984,7 +3984,7 @@ pub const dl_phdr_info = switch (native_os) {
     .illumos => extern struct {
         addr: std.elf.Addr,
         name: ?[*:0]const u8,
-        phdr: [*]std.elf.Phdr,
+        phdr: [*]std.elf.ElfN.Phdr,
         phnum: std.elf.Half,
         /// Incremented when a new object is mapped into the process.
         adds: u64,
@@ -3995,7 +3995,7 @@ pub const dl_phdr_info = switch (native_os) {
     .openbsd, .haiku, .dragonfly, .netbsd, .serenity => extern struct {
         addr: usize,
         name: ?[*:0]const u8,
-        phdr: [*]std.elf.Phdr,
+        phdr: [*]std.elf.ElfN.Phdr,
         phnum: std.elf.Half,
     },
     else => void,

lib/std/debug/SelfInfo/Elf.zig

@@ -441,11 +441,11 @@ const DlIterContext = struct {
 
         // Populate `build_id` and `gnu_eh_frame`
         for (info.phdr[0..info.phnum]) |phdr| {
-            switch (phdr.p_type) {
-                std.elf.PT_NOTE => {
+            switch (phdr.type) {
+                .NOTE => {
                     // Look for .note.gnu.build-id
-                    const segment_ptr: [*]const u8 = @ptrFromInt(info.addr + phdr.p_vaddr);
-                    var r: std.Io.Reader = .fixed(segment_ptr[0..phdr.p_memsz]);
+                    const segment_ptr: [*]const u8 = @ptrFromInt(info.addr + phdr.vaddr);
+                    var r: std.Io.Reader = .fixed(segment_ptr[0..phdr.memsz]);
                     const name_size = r.takeInt(u32, native_endian) catch continue;
                     const desc_size = r.takeInt(u32, native_endian) catch continue;
                     const note_type = r.takeInt(u32, native_endian) catch continue;
@@ -455,9 +455,9 @@ const DlIterContext = struct {
                     const desc = r.take(desc_size) catch continue;
                     build_id = desc;
                 },
-                std.elf.PT_GNU_EH_FRAME => {
-                    const segment_ptr: [*]const u8 = @ptrFromInt(info.addr + phdr.p_vaddr);
-                    gnu_eh_frame = segment_ptr[0..phdr.p_memsz];
+                std.elf.PT.GNU_EH_FRAME => {
+                    const segment_ptr: [*]const u8 = @ptrFromInt(info.addr + phdr.vaddr);
+                    gnu_eh_frame = segment_ptr[0..phdr.memsz];
                 },
                 else => {},
             }
@@ -478,11 +478,11 @@ const DlIterContext = struct {
         });
 
         for (info.phdr[0..info.phnum]) |phdr| {
-            if (phdr.p_type != std.elf.PT_LOAD) continue;
+            if (phdr.type != .LOAD) continue;
             try context.si.ranges.append(gpa, .{
                 // Overflowing addition handles VSDOs having p_vaddr = 0xffffffffff700000
-                .start = info.addr +% phdr.p_vaddr,
-                .len = phdr.p_memsz,
+                .start = info.addr +% phdr.vaddr,
+                .len = phdr.memsz,
                 .module_index = module_index,
             });
         }

lib/std/dynamic_library.zig

@@ -92,8 +92,7 @@ pub fn get_DYNAMIC() ?[*]const elf.Dyn {
     });
 }
 
-pub fn linkmap_iterator(phdrs: []const elf.Phdr) error{InvalidExe}!LinkMap.Iterator {
-    _ = phdrs;
+pub fn linkmap_iterator() error{InvalidExe}!LinkMap.Iterator {
     const _DYNAMIC = get_DYNAMIC() orelse {
         // No PT_DYNAMIC means this is a statically-linked non-PIE program.
         return .{ .current = null };