authorgravatar for kubkon@jakubkonka.comJakub Konka <kubkon@jakubkonka.com> 2021-02-28 00:25:41+01:00
committergravatar for kubkon@jakubkonka.comJakub Konka <kubkon@jakubkonka.com> 2021-03-17 19:59:13+01:00
log7c22f4f85165965e5843a9f6bd800f0463f19122
treea69e9e2cdaa68800469bc6de9951f2ec5485214a
parent7cbdbab3765bf1eb5f213b04054b82c46d876588

zld: pass test-std and test-compiler-rt


2 files changed, 32 insertions(+), 17 deletions(-)

src/link/MachO/Zld.zig+22-16
......@@ -517,7 +517,7 @@ fn allocateSegment(self: *Zld, index: u16, offset: u64, start: u64, reverse: boo
517517 var count: usize = seg.sections.items.len;
518518 while (count > 0) : (count -= 1) {
519519 const sec = &seg.sections.items[count - 1];
520 end_off -= mem.alignForwardGeneric(u64, sec.size, @alignOf(u64)); // TODO is 8-byte aligned correct?
520 end_off -= mem.alignForwardGeneric(u64, sec.size, @alignOf(u128)); // TODO is 8-byte aligned correct?
521521 sec.offset = @intCast(u32, end_off);
522522 sec.addr = base_vmaddr + end_off;
523523 }
......@@ -526,7 +526,7 @@ fn allocateSegment(self: *Zld, index: u16, offset: u64, start: u64, reverse: boo
526526 for (seg.sections.items) |*sect| {
527527 sect.offset = @intCast(u32, next_off);
528528 sect.addr = base_vmaddr + next_off;
529 next_off += mem.alignForwardGeneric(u64, sect.size, @alignOf(u64)); // TODO is 8-byte aligned correct?
529 next_off += mem.alignForwardGeneric(u64, sect.size, @alignOf(u128)); // TODO is 8-byte aligned correct?
530530 }
531531 }
532532}
......@@ -1120,6 +1120,11 @@ fn doRelocs(self: *Zld) !void {
11201120 const narrowed = @truncate(u12, ta);
11211121 const offset: u12 = blk: {
11221122 if (parsed.size == 0) {
1123 if (parsed.v == 1) {
1124 // 128-bit SIMD is scaled by 16.
1125 break :blk try math.divExact(u12, narrowed, 16);
1126 }
1127 // Otherwise, 8-bit SIMD or ldrb.
11231128 break :blk narrowed;
11241129 } else {
11251130 const denom: u4 = try math.powi(u4, 2, parsed.size);
......@@ -2184,25 +2189,26 @@ fn writeSymbolTable(self: *Zld) !void {
21842189
21852190 for (self.locals.items()) |entries| {
21862191 log.warn("'{s}': {} entries", .{ entries.key, entries.value.items.len });
2187 var symbol: ?macho.nlist_64 = null;
2192 // var symbol: ?macho.nlist_64 = null;
21882193 for (entries.value.items) |entry| {
21892194 log.warn(" | {}", .{entry.inner});
21902195 log.warn(" | {}", .{entry.tt});
21912196 log.warn(" | {s}", .{entry.object.name});
2192 switch (entry.tt) {
2193 .Global => {
2194 symbol = entry.inner;
2195 break;
2196 },
2197 .WeakGlobal => {
2198 symbol = entry.inner;
2199 },
2200 .Local => {},
2201 }
2202 }
2203 if (symbol) |s| {
2204 try locals.append(s);
2197 // switch (entry.tt) {
2198 // .Global => {
2199 // symbol = entry.inner;
2200 // break;
2201 // },
2202 // .WeakGlobal => {
2203 // symbol = entry.inner;
2204 // },
2205 // .Local => {},
2206 // }
2207 try locals.append(entry.inner);
22052208 }
2209 // if (symbol) |s| {
2210 // try locals.append(s);
2211 // }
22062212 }
22072213 const nlocals = locals.items.len;
22082214
src/link/MachO/reloc.zig+10-1
......@@ -25,7 +25,10 @@ pub const Arm64 = union(enum) {
2525 rt: u5,
2626 rn: u5,
2727 offset: u12,
28 _1: u8 = 0b111_0_01_01,
28 opc: u2,
29 _2: u2 = 0b01,
30 v: u1,
31 _1: u3 = 0b111,
2932 size: u2,
3033 },
3134 LoadLiteral: packed struct {
......@@ -144,6 +147,8 @@ pub const Arm64 = union(enum) {
144147 .rt = rt,
145148 .rn = rn,
146149 .offset = offset,
150 .opc = 0b01,
151 .v = 0b0,
147152 .size = 0b11,
148153 },
149154 };
......@@ -154,6 +159,8 @@ pub const Arm64 = union(enum) {
154159 .rt = rt,
155160 .rn = rn,
156161 .offset = offset,
162 .opc = 0b01,
163 .v = 0b0,
157164 .size = 0b01,
158165 },
159166 };
......@@ -164,6 +171,8 @@ pub const Arm64 = union(enum) {
164171 .rt = rt,
165172 .rn = rn,
166173 .offset = offset,
174 .opc = 0b01,
175 .v = 0b0,
167176 .size = 0b00,
168177 },
169178 };