align tls variables (dlang#21901)

WalterBright · web-flow · commit dede581ee496 · 2025-09-22T16:43:38.000+08:00
diff --git a/compiler/src/dmd/backend/machobj.d b/compiler/src/dmd/backend/machobj.d
@@ -2032,15 +2032,15 @@ int MachObj_thread_vars(ref Symbol s, out targ_size_t offset, bool bss)
     {
         MachObj_tlsseg_bss();
         si.Sseg = seg_tlsseg_bss;
-        offset = SegData[si.Sseg].SDoffset; // don't overlap
     }
     else
     {
         MachObj_tlsseg_data();
         si.Sseg = seg_tlsseg_data;
-        offset = SegData[si.Sseg].SDbuf.length();
     }
     si.Sfl = FL.tlsdata;
+    MachObj_data_start(si, 0,si.Sseg);
+    offset = SegData[si.Sseg].SDbuf.length();
     MachObj_pubdef(si.Sseg, si, offset);
 
     /* Create __thread_vars section, and s will refer to it

Original file line number	Diff line number	Diff line change
`@@ -2032,15 +2032,15 @@ int MachObj_thread_vars(ref Symbol s, out targ_size_t offset, bool bss)`
`2032`	`2032`	`{`
`2033`	`2033`	`MachObj_tlsseg_bss();`
`2034`	`2034`	`si.Sseg = seg_tlsseg_bss;`
`2035`		`- offset = SegData[si.Sseg].SDoffset; // don't overlap`
`2036`	`2035`	`}`
`2037`	`2036`	`else`
`2038`	`2037`	`{`
`2039`	`2038`	`MachObj_tlsseg_data();`
`2040`	`2039`	`si.Sseg = seg_tlsseg_data;`
`2041`		`- offset = SegData[si.Sseg].SDbuf.length();`
`2042`	`2040`	`}`
`2043`	`2041`	`si.Sfl = FL.tlsdata;`
	`2042`	`+ MachObj_data_start(si, 0,si.Sseg);`
	`2043`	`+ offset = SegData[si.Sseg].SDbuf.length();`
`2044`	`2044`	`MachObj_pubdef(si.Sseg, si, offset);`
`2045`	`2045`
`2046`	`2046`	`/* Create __thread_vars section, and s will refer to it`