| author |  Alex Rønne Petersen <alex@alexrp.com> 2026-08-09 03:49:05+02:00 |
| committer | Alex Rønne Petersen <alex@alexrp.com> 2026-08-09 17:53:03+02:00 |
| log | f0292b57033ce2063c51f01fcd24937b81eb3699 |
| tree | 844951ae8b0876d55376127c24de0047446d7ad2 |
| parent | 516040582da20208d2026996c0ca9cf4c1fc20be |
| signature |  Signed by SSH key SHA256:7B/LJ7bpR1eX8aCXSr4mtd5M45VMPKcx9zY8e95b5QM |
std.Thread: remove mips o32 workaround in LinuxThreadImpl.freeAndExit()
Our minimum kernel version was released several years after this kernel bug was
fixed. On top of that, it's a hacky workaround that depends on abicalls to work.
Well past time to get rid of it.1 files changed, 0 insertions(+), 5 deletions(-)
lib- std
lib/std/Thread.zig-5
| ... | ... | @@ -1275,12 +1275,7 @@ const LinuxThreadImpl = struct { |
| 1275 | 1275 | : [ptr] "{r5}" (@intFromPtr(self.mapped.ptr)), |
| 1276 | 1276 | [len] "{r6}" (self.mapped.len), |
| 1277 | 1277 | ), |
| 1278 | // We set `sp` to the address of the current function as a workaround for a Linux | |
| 1279 | // kernel bug that caused syscalls to return EFAULT if the stack pointer is invalid. | |
| 1280 | // The bug was introduced in 46e12c07b3b9603c60fc1d421ff18618241cb081 and fixed in | |
| 1281 | // 7928eb0370d1133d0d8cd2f5ddfca19c309079d5. | |
| 1282 | 1278 | .mips, .mipsel => asm volatile ( |
| 1283 | \\ move $sp, $t9 | |
| 1284 | 1279 | \\ li $v0, 4091 # SYS_munmap |
| 1285 | 1280 | \\ syscall |
| 1286 | 1281 | \\ li $v0, 4001 # SYS_exit |