diff --git a/libc/arch-x86/syscalls/__accept4.S b/libc/arch-x86/syscalls/__accept4.S
index 2d9cc42..c28f211 100644
--- a/libc/arch-x86/syscalls/__accept4.S
+++ b/libc/arch-x86/syscalls/__accept4.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__accept4)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__brk.S b/libc/arch-x86/syscalls/__brk.S
index 632dfcf..c5702cf 100644
--- a/libc/arch-x86/syscalls/__brk.S
+++ b/libc/arch-x86/syscalls/__brk.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__brk)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__connect.S b/libc/arch-x86/syscalls/__connect.S
index 5ee4fbf..4f845b7 100644
--- a/libc/arch-x86/syscalls/__connect.S
+++ b/libc/arch-x86/syscalls/__connect.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__connect)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__epoll_pwait.S b/libc/arch-x86/syscalls/__epoll_pwait.S
index 641ca6d..c7acb2b 100644
--- a/libc/arch-x86/syscalls/__epoll_pwait.S
+++ b/libc/arch-x86/syscalls/__epoll_pwait.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__epoll_pwait)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__exit.S b/libc/arch-x86/syscalls/__exit.S
index 8578f56..bf76e04 100644
--- a/libc/arch-x86/syscalls/__exit.S
+++ b/libc/arch-x86/syscalls/__exit.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__exit)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__fcntl64.S b/libc/arch-x86/syscalls/__fcntl64.S
index ef58d15..7c41c88 100644
--- a/libc/arch-x86/syscalls/__fcntl64.S
+++ b/libc/arch-x86/syscalls/__fcntl64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__fcntl64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__fstatfs64.S b/libc/arch-x86/syscalls/__fstatfs64.S
index 0ca3360..b182ae3 100644
--- a/libc/arch-x86/syscalls/__fstatfs64.S
+++ b/libc/arch-x86/syscalls/__fstatfs64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__fstatfs64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__getcpu.S b/libc/arch-x86/syscalls/__getcpu.S
index b181877..4cdbafa 100644
--- a/libc/arch-x86/syscalls/__getcpu.S
+++ b/libc/arch-x86/syscalls/__getcpu.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__getcpu)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__getcwd.S b/libc/arch-x86/syscalls/__getcwd.S
index b71ba0d..f5b9b9c 100644
--- a/libc/arch-x86/syscalls/__getcwd.S
+++ b/libc/arch-x86/syscalls/__getcwd.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__getcwd)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__getdents64.S b/libc/arch-x86/syscalls/__getdents64.S
index 3fc8719..0ff217d 100644
--- a/libc/arch-x86/syscalls/__getdents64.S
+++ b/libc/arch-x86/syscalls/__getdents64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__getdents64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__getpid.S b/libc/arch-x86/syscalls/__getpid.S
index f138d2f..6a3602e 100644
--- a/libc/arch-x86/syscalls/__getpid.S
+++ b/libc/arch-x86/syscalls/__getpid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__getpid)
     movl    $__NR_getpid, %eax
     int     $0x80
diff --git a/libc/arch-x86/syscalls/__getpriority.S b/libc/arch-x86/syscalls/__getpriority.S
index 103431d..6a94f43 100644
--- a/libc/arch-x86/syscalls/__getpriority.S
+++ b/libc/arch-x86/syscalls/__getpriority.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__getpriority)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__ioctl.S b/libc/arch-x86/syscalls/__ioctl.S
index 99d2d2c..edb990a 100644
--- a/libc/arch-x86/syscalls/__ioctl.S
+++ b/libc/arch-x86/syscalls/__ioctl.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__ioctl)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__llseek.S b/libc/arch-x86/syscalls/__llseek.S
index 0cdb98a..db39106 100644
--- a/libc/arch-x86/syscalls/__llseek.S
+++ b/libc/arch-x86/syscalls/__llseek.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__llseek)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__mmap2.S b/libc/arch-x86/syscalls/__mmap2.S
index 47131ef..5c8f2a3 100644
--- a/libc/arch-x86/syscalls/__mmap2.S
+++ b/libc/arch-x86/syscalls/__mmap2.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__mmap2)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__openat.S b/libc/arch-x86/syscalls/__openat.S
index aec10e5..87687e5 100644
--- a/libc/arch-x86/syscalls/__openat.S
+++ b/libc/arch-x86/syscalls/__openat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__openat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__ppoll.S b/libc/arch-x86/syscalls/__ppoll.S
index 92197b7..e48f841 100644
--- a/libc/arch-x86/syscalls/__ppoll.S
+++ b/libc/arch-x86/syscalls/__ppoll.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__ppoll)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__pselect6.S b/libc/arch-x86/syscalls/__pselect6.S
index 38402f0..53edb8c 100644
--- a/libc/arch-x86/syscalls/__pselect6.S
+++ b/libc/arch-x86/syscalls/__pselect6.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__pselect6)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__ptrace.S b/libc/arch-x86/syscalls/__ptrace.S
index cea5847..9d1e460 100644
--- a/libc/arch-x86/syscalls/__ptrace.S
+++ b/libc/arch-x86/syscalls/__ptrace.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__ptrace)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__reboot.S b/libc/arch-x86/syscalls/__reboot.S
index 4546994..3ef78bb 100644
--- a/libc/arch-x86/syscalls/__reboot.S
+++ b/libc/arch-x86/syscalls/__reboot.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__reboot)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__rt_sigaction.S b/libc/arch-x86/syscalls/__rt_sigaction.S
index bfbe5ba..1ce7ef9 100644
--- a/libc/arch-x86/syscalls/__rt_sigaction.S
+++ b/libc/arch-x86/syscalls/__rt_sigaction.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__rt_sigaction)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__rt_sigpending.S b/libc/arch-x86/syscalls/__rt_sigpending.S
index dac478a..a4cb3c1 100644
--- a/libc/arch-x86/syscalls/__rt_sigpending.S
+++ b/libc/arch-x86/syscalls/__rt_sigpending.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__rt_sigpending)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__rt_sigprocmask.S b/libc/arch-x86/syscalls/__rt_sigprocmask.S
index f112360..9d8e90d 100644
--- a/libc/arch-x86/syscalls/__rt_sigprocmask.S
+++ b/libc/arch-x86/syscalls/__rt_sigprocmask.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__rt_sigprocmask)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__rt_sigsuspend.S b/libc/arch-x86/syscalls/__rt_sigsuspend.S
index ef505c0..e0d0c3d 100644
--- a/libc/arch-x86/syscalls/__rt_sigsuspend.S
+++ b/libc/arch-x86/syscalls/__rt_sigsuspend.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__rt_sigsuspend)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__rt_sigtimedwait.S b/libc/arch-x86/syscalls/__rt_sigtimedwait.S
index d19c7db..091c1a7 100644
--- a/libc/arch-x86/syscalls/__rt_sigtimedwait.S
+++ b/libc/arch-x86/syscalls/__rt_sigtimedwait.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__rt_sigtimedwait)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__sched_getaffinity.S b/libc/arch-x86/syscalls/__sched_getaffinity.S
index e7cb8f1..2c278db 100644
--- a/libc/arch-x86/syscalls/__sched_getaffinity.S
+++ b/libc/arch-x86/syscalls/__sched_getaffinity.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__sched_getaffinity)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__set_thread_area.S b/libc/arch-x86/syscalls/__set_thread_area.S
index dda23a0..29e1238 100644
--- a/libc/arch-x86/syscalls/__set_thread_area.S
+++ b/libc/arch-x86/syscalls/__set_thread_area.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__set_thread_area)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__set_tid_address.S b/libc/arch-x86/syscalls/__set_tid_address.S
index 1566d9a..3517442 100644
--- a/libc/arch-x86/syscalls/__set_tid_address.S
+++ b/libc/arch-x86/syscalls/__set_tid_address.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__set_tid_address)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__sigaction.S b/libc/arch-x86/syscalls/__sigaction.S
index f1a51d2..0a3e77e 100644
--- a/libc/arch-x86/syscalls/__sigaction.S
+++ b/libc/arch-x86/syscalls/__sigaction.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__sigaction)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__signalfd4.S b/libc/arch-x86/syscalls/__signalfd4.S
index 335e206..acfced5 100644
--- a/libc/arch-x86/syscalls/__signalfd4.S
+++ b/libc/arch-x86/syscalls/__signalfd4.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__signalfd4)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__socket.S b/libc/arch-x86/syscalls/__socket.S
index 368680f..59988f3 100644
--- a/libc/arch-x86/syscalls/__socket.S
+++ b/libc/arch-x86/syscalls/__socket.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__socket)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__statfs64.S b/libc/arch-x86/syscalls/__statfs64.S
index 6bb9d99..63d866e 100644
--- a/libc/arch-x86/syscalls/__statfs64.S
+++ b/libc/arch-x86/syscalls/__statfs64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__statfs64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__timer_create.S b/libc/arch-x86/syscalls/__timer_create.S
index 3d28ae9..1265aa6 100644
--- a/libc/arch-x86/syscalls/__timer_create.S
+++ b/libc/arch-x86/syscalls/__timer_create.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__timer_create)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__timer_delete.S b/libc/arch-x86/syscalls/__timer_delete.S
index 7d64d6d..bc1fbc5 100644
--- a/libc/arch-x86/syscalls/__timer_delete.S
+++ b/libc/arch-x86/syscalls/__timer_delete.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__timer_delete)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__timer_getoverrun.S b/libc/arch-x86/syscalls/__timer_getoverrun.S
index cb37765..2a8de1e 100644
--- a/libc/arch-x86/syscalls/__timer_getoverrun.S
+++ b/libc/arch-x86/syscalls/__timer_getoverrun.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__timer_getoverrun)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__timer_gettime.S b/libc/arch-x86/syscalls/__timer_gettime.S
index 5c43f4a..9edd15a 100644
--- a/libc/arch-x86/syscalls/__timer_gettime.S
+++ b/libc/arch-x86/syscalls/__timer_gettime.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__timer_gettime)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__timer_settime.S b/libc/arch-x86/syscalls/__timer_settime.S
index da7c587..4bb0790 100644
--- a/libc/arch-x86/syscalls/__timer_settime.S
+++ b/libc/arch-x86/syscalls/__timer_settime.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__timer_settime)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/__waitid.S b/libc/arch-x86/syscalls/__waitid.S
index 7e3ecdd..331baf5 100644
--- a/libc/arch-x86/syscalls/__waitid.S
+++ b/libc/arch-x86/syscalls/__waitid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(__waitid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/_exit.S b/libc/arch-x86/syscalls/_exit.S
index 36e884a..0da6e79 100644
--- a/libc/arch-x86/syscalls/_exit.S
+++ b/libc/arch-x86/syscalls/_exit.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(_exit)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/acct.S b/libc/arch-x86/syscalls/acct.S
index a036114..34a23a4 100644
--- a/libc/arch-x86/syscalls/acct.S
+++ b/libc/arch-x86/syscalls/acct.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(acct)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/bind.S b/libc/arch-x86/syscalls/bind.S
index ab5a29e..1d45319 100644
--- a/libc/arch-x86/syscalls/bind.S
+++ b/libc/arch-x86/syscalls/bind.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(bind)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/capget.S b/libc/arch-x86/syscalls/capget.S
index 5441e49..82b5b73 100644
--- a/libc/arch-x86/syscalls/capget.S
+++ b/libc/arch-x86/syscalls/capget.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(capget)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/capset.S b/libc/arch-x86/syscalls/capset.S
index d04e411..79e8747 100644
--- a/libc/arch-x86/syscalls/capset.S
+++ b/libc/arch-x86/syscalls/capset.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(capset)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/chdir.S b/libc/arch-x86/syscalls/chdir.S
index d32a0bd..98bdf37 100644
--- a/libc/arch-x86/syscalls/chdir.S
+++ b/libc/arch-x86/syscalls/chdir.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(chdir)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/chroot.S b/libc/arch-x86/syscalls/chroot.S
index 63d7e00..978eec7 100644
--- a/libc/arch-x86/syscalls/chroot.S
+++ b/libc/arch-x86/syscalls/chroot.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(chroot)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/clock_getres.S b/libc/arch-x86/syscalls/clock_getres.S
index 321299c..c93a279 100644
--- a/libc/arch-x86/syscalls/clock_getres.S
+++ b/libc/arch-x86/syscalls/clock_getres.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(clock_getres)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/clock_gettime.S b/libc/arch-x86/syscalls/clock_gettime.S
index 54f769a..9c5c240 100644
--- a/libc/arch-x86/syscalls/clock_gettime.S
+++ b/libc/arch-x86/syscalls/clock_gettime.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(clock_gettime)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/clock_nanosleep.S b/libc/arch-x86/syscalls/clock_nanosleep.S
index ca961c0..edadec2 100644
--- a/libc/arch-x86/syscalls/clock_nanosleep.S
+++ b/libc/arch-x86/syscalls/clock_nanosleep.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(clock_nanosleep)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/clock_settime.S b/libc/arch-x86/syscalls/clock_settime.S
index ab8c43e..41012d0 100644
--- a/libc/arch-x86/syscalls/clock_settime.S
+++ b/libc/arch-x86/syscalls/clock_settime.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(clock_settime)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/close.S b/libc/arch-x86/syscalls/close.S
index 0b3e73a..b73c4b4 100644
--- a/libc/arch-x86/syscalls/close.S
+++ b/libc/arch-x86/syscalls/close.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(close)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/delete_module.S b/libc/arch-x86/syscalls/delete_module.S
index 757c8c1..73a5128 100644
--- a/libc/arch-x86/syscalls/delete_module.S
+++ b/libc/arch-x86/syscalls/delete_module.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(delete_module)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/dup.S b/libc/arch-x86/syscalls/dup.S
index 64e1538..f8e8772 100644
--- a/libc/arch-x86/syscalls/dup.S
+++ b/libc/arch-x86/syscalls/dup.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(dup)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/dup3.S b/libc/arch-x86/syscalls/dup3.S
index a0ecd19..1203e64 100644
--- a/libc/arch-x86/syscalls/dup3.S
+++ b/libc/arch-x86/syscalls/dup3.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(dup3)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/epoll_create1.S b/libc/arch-x86/syscalls/epoll_create1.S
index 5b6a1ba..6384b92 100644
--- a/libc/arch-x86/syscalls/epoll_create1.S
+++ b/libc/arch-x86/syscalls/epoll_create1.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(epoll_create1)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/epoll_ctl.S b/libc/arch-x86/syscalls/epoll_ctl.S
index 3fd8acd..cdc880e 100644
--- a/libc/arch-x86/syscalls/epoll_ctl.S
+++ b/libc/arch-x86/syscalls/epoll_ctl.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(epoll_ctl)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/eventfd.S b/libc/arch-x86/syscalls/eventfd.S
index 55c5e6a..fe85967 100644
--- a/libc/arch-x86/syscalls/eventfd.S
+++ b/libc/arch-x86/syscalls/eventfd.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(eventfd)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/execve.S b/libc/arch-x86/syscalls/execve.S
index 7ad54f7..a897c42 100644
--- a/libc/arch-x86/syscalls/execve.S
+++ b/libc/arch-x86/syscalls/execve.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(execve)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/faccessat.S b/libc/arch-x86/syscalls/faccessat.S
index 115d645..4ac3e2a 100644
--- a/libc/arch-x86/syscalls/faccessat.S
+++ b/libc/arch-x86/syscalls/faccessat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(faccessat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fallocate64.S b/libc/arch-x86/syscalls/fallocate64.S
index f8bde62..e1dfa08 100644
--- a/libc/arch-x86/syscalls/fallocate64.S
+++ b/libc/arch-x86/syscalls/fallocate64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fallocate64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fchdir.S b/libc/arch-x86/syscalls/fchdir.S
index 56e496c..af43acb 100644
--- a/libc/arch-x86/syscalls/fchdir.S
+++ b/libc/arch-x86/syscalls/fchdir.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fchdir)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fchmod.S b/libc/arch-x86/syscalls/fchmod.S
index 4badcea..5c58359 100644
--- a/libc/arch-x86/syscalls/fchmod.S
+++ b/libc/arch-x86/syscalls/fchmod.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fchmod)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fchmodat.S b/libc/arch-x86/syscalls/fchmodat.S
index 552e85c..aed8d29 100644
--- a/libc/arch-x86/syscalls/fchmodat.S
+++ b/libc/arch-x86/syscalls/fchmodat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fchmodat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fchown.S b/libc/arch-x86/syscalls/fchown.S
index 7e82637..da80251 100644
--- a/libc/arch-x86/syscalls/fchown.S
+++ b/libc/arch-x86/syscalls/fchown.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fchown)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fchownat.S b/libc/arch-x86/syscalls/fchownat.S
index de039d0..8514243 100644
--- a/libc/arch-x86/syscalls/fchownat.S
+++ b/libc/arch-x86/syscalls/fchownat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fchownat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fdatasync.S b/libc/arch-x86/syscalls/fdatasync.S
index fdb5578..fc2c163 100644
--- a/libc/arch-x86/syscalls/fdatasync.S
+++ b/libc/arch-x86/syscalls/fdatasync.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fdatasync)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fgetxattr.S b/libc/arch-x86/syscalls/fgetxattr.S
index 3ed63d3..767a675 100644
--- a/libc/arch-x86/syscalls/fgetxattr.S
+++ b/libc/arch-x86/syscalls/fgetxattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fgetxattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/flistxattr.S b/libc/arch-x86/syscalls/flistxattr.S
index 2840114..dbb4977 100644
--- a/libc/arch-x86/syscalls/flistxattr.S
+++ b/libc/arch-x86/syscalls/flistxattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(flistxattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/flock.S b/libc/arch-x86/syscalls/flock.S
index dc9ef02..b4b748e 100644
--- a/libc/arch-x86/syscalls/flock.S
+++ b/libc/arch-x86/syscalls/flock.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(flock)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fremovexattr.S b/libc/arch-x86/syscalls/fremovexattr.S
index 1e77f82..c34cbc4 100644
--- a/libc/arch-x86/syscalls/fremovexattr.S
+++ b/libc/arch-x86/syscalls/fremovexattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fremovexattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fsetxattr.S b/libc/arch-x86/syscalls/fsetxattr.S
index 703a8d7..5593dca 100644
--- a/libc/arch-x86/syscalls/fsetxattr.S
+++ b/libc/arch-x86/syscalls/fsetxattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fsetxattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fstat64.S b/libc/arch-x86/syscalls/fstat64.S
index 970eeb1..2e29ae5 100644
--- a/libc/arch-x86/syscalls/fstat64.S
+++ b/libc/arch-x86/syscalls/fstat64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fstat64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fstatat64.S b/libc/arch-x86/syscalls/fstatat64.S
index 476578d..72922cb 100644
--- a/libc/arch-x86/syscalls/fstatat64.S
+++ b/libc/arch-x86/syscalls/fstatat64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fstatat64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/fsync.S b/libc/arch-x86/syscalls/fsync.S
index 9fc84b7..af10e9a 100644
--- a/libc/arch-x86/syscalls/fsync.S
+++ b/libc/arch-x86/syscalls/fsync.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(fsync)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/ftruncate.S b/libc/arch-x86/syscalls/ftruncate.S
index 6765d98..7343985 100644
--- a/libc/arch-x86/syscalls/ftruncate.S
+++ b/libc/arch-x86/syscalls/ftruncate.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(ftruncate)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/ftruncate64.S b/libc/arch-x86/syscalls/ftruncate64.S
index 21e26ce..47b925b 100644
--- a/libc/arch-x86/syscalls/ftruncate64.S
+++ b/libc/arch-x86/syscalls/ftruncate64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(ftruncate64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getegid.S b/libc/arch-x86/syscalls/getegid.S
index 445cd97..bc21b5a 100644
--- a/libc/arch-x86/syscalls/getegid.S
+++ b/libc/arch-x86/syscalls/getegid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getegid)
     movl    $__NR_getegid32, %eax
     int     $0x80
diff --git a/libc/arch-x86/syscalls/geteuid.S b/libc/arch-x86/syscalls/geteuid.S
index 8290a93..469f9c9 100644
--- a/libc/arch-x86/syscalls/geteuid.S
+++ b/libc/arch-x86/syscalls/geteuid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(geteuid)
     movl    $__NR_geteuid32, %eax
     int     $0x80
diff --git a/libc/arch-x86/syscalls/getgid.S b/libc/arch-x86/syscalls/getgid.S
index d90767f..6b15674 100644
--- a/libc/arch-x86/syscalls/getgid.S
+++ b/libc/arch-x86/syscalls/getgid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getgid)
     movl    $__NR_getgid32, %eax
     int     $0x80
diff --git a/libc/arch-x86/syscalls/getgroups.S b/libc/arch-x86/syscalls/getgroups.S
index d36c09c..a7aa1b2 100644
--- a/libc/arch-x86/syscalls/getgroups.S
+++ b/libc/arch-x86/syscalls/getgroups.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getgroups)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getitimer.S b/libc/arch-x86/syscalls/getitimer.S
index ebf1260..1b424a3 100644
--- a/libc/arch-x86/syscalls/getitimer.S
+++ b/libc/arch-x86/syscalls/getitimer.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getitimer)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getpeername.S b/libc/arch-x86/syscalls/getpeername.S
index abecd4e..94b43fb 100644
--- a/libc/arch-x86/syscalls/getpeername.S
+++ b/libc/arch-x86/syscalls/getpeername.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getpeername)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getpgid.S b/libc/arch-x86/syscalls/getpgid.S
index e74ed3b..7d7149e 100644
--- a/libc/arch-x86/syscalls/getpgid.S
+++ b/libc/arch-x86/syscalls/getpgid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getpgid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getppid.S b/libc/arch-x86/syscalls/getppid.S
index 025fa42..3103ed2 100644
--- a/libc/arch-x86/syscalls/getppid.S
+++ b/libc/arch-x86/syscalls/getppid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getppid)
     movl    $__NR_getppid, %eax
     int     $0x80
diff --git a/libc/arch-x86/syscalls/getresgid.S b/libc/arch-x86/syscalls/getresgid.S
index fe08cdf..2f03a03 100644
--- a/libc/arch-x86/syscalls/getresgid.S
+++ b/libc/arch-x86/syscalls/getresgid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getresgid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getresuid.S b/libc/arch-x86/syscalls/getresuid.S
index 8e292fc..d6fe915 100644
--- a/libc/arch-x86/syscalls/getresuid.S
+++ b/libc/arch-x86/syscalls/getresuid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getresuid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getrlimit.S b/libc/arch-x86/syscalls/getrlimit.S
index fdb5a03..4587a2e 100644
--- a/libc/arch-x86/syscalls/getrlimit.S
+++ b/libc/arch-x86/syscalls/getrlimit.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getrlimit)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getrusage.S b/libc/arch-x86/syscalls/getrusage.S
index ae5f796..4b2e38b 100644
--- a/libc/arch-x86/syscalls/getrusage.S
+++ b/libc/arch-x86/syscalls/getrusage.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getrusage)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getsid.S b/libc/arch-x86/syscalls/getsid.S
index e1dc87f..eac9f2c 100644
--- a/libc/arch-x86/syscalls/getsid.S
+++ b/libc/arch-x86/syscalls/getsid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getsid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getsockname.S b/libc/arch-x86/syscalls/getsockname.S
index 254b755..738fa6d 100644
--- a/libc/arch-x86/syscalls/getsockname.S
+++ b/libc/arch-x86/syscalls/getsockname.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getsockname)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getsockopt.S b/libc/arch-x86/syscalls/getsockopt.S
index 2ef630c..f8338f5 100644
--- a/libc/arch-x86/syscalls/getsockopt.S
+++ b/libc/arch-x86/syscalls/getsockopt.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getsockopt)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/gettimeofday.S b/libc/arch-x86/syscalls/gettimeofday.S
index 709a17b..96c1e11 100644
--- a/libc/arch-x86/syscalls/gettimeofday.S
+++ b/libc/arch-x86/syscalls/gettimeofday.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(gettimeofday)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/getuid.S b/libc/arch-x86/syscalls/getuid.S
index c375d30..cde5da8 100644
--- a/libc/arch-x86/syscalls/getuid.S
+++ b/libc/arch-x86/syscalls/getuid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getuid)
     movl    $__NR_getuid32, %eax
     int     $0x80
diff --git a/libc/arch-x86/syscalls/getxattr.S b/libc/arch-x86/syscalls/getxattr.S
index db9c9dd..7679cbf 100644
--- a/libc/arch-x86/syscalls/getxattr.S
+++ b/libc/arch-x86/syscalls/getxattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(getxattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/init_module.S b/libc/arch-x86/syscalls/init_module.S
index 543b31e..02e55f0 100644
--- a/libc/arch-x86/syscalls/init_module.S
+++ b/libc/arch-x86/syscalls/init_module.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(init_module)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/inotify_add_watch.S b/libc/arch-x86/syscalls/inotify_add_watch.S
index f58c6d1..74a59f3 100644
--- a/libc/arch-x86/syscalls/inotify_add_watch.S
+++ b/libc/arch-x86/syscalls/inotify_add_watch.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(inotify_add_watch)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/inotify_init1.S b/libc/arch-x86/syscalls/inotify_init1.S
index 2c7b100..de714c9 100644
--- a/libc/arch-x86/syscalls/inotify_init1.S
+++ b/libc/arch-x86/syscalls/inotify_init1.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(inotify_init1)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/inotify_rm_watch.S b/libc/arch-x86/syscalls/inotify_rm_watch.S
index c453478..3edc152 100644
--- a/libc/arch-x86/syscalls/inotify_rm_watch.S
+++ b/libc/arch-x86/syscalls/inotify_rm_watch.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(inotify_rm_watch)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/kill.S b/libc/arch-x86/syscalls/kill.S
index 0c1e24a..0cf38a9 100644
--- a/libc/arch-x86/syscalls/kill.S
+++ b/libc/arch-x86/syscalls/kill.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(kill)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/klogctl.S b/libc/arch-x86/syscalls/klogctl.S
index 869324a..52b04e1 100644
--- a/libc/arch-x86/syscalls/klogctl.S
+++ b/libc/arch-x86/syscalls/klogctl.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(klogctl)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/lgetxattr.S b/libc/arch-x86/syscalls/lgetxattr.S
index 3ed4f11..8c2eb47 100644
--- a/libc/arch-x86/syscalls/lgetxattr.S
+++ b/libc/arch-x86/syscalls/lgetxattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(lgetxattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/linkat.S b/libc/arch-x86/syscalls/linkat.S
index e0c7e5f..56b8368 100644
--- a/libc/arch-x86/syscalls/linkat.S
+++ b/libc/arch-x86/syscalls/linkat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(linkat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/listen.S b/libc/arch-x86/syscalls/listen.S
index c65f970..2c8cc76 100644
--- a/libc/arch-x86/syscalls/listen.S
+++ b/libc/arch-x86/syscalls/listen.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(listen)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/listxattr.S b/libc/arch-x86/syscalls/listxattr.S
index 98a5114..f43ab3c 100644
--- a/libc/arch-x86/syscalls/listxattr.S
+++ b/libc/arch-x86/syscalls/listxattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(listxattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/llistxattr.S b/libc/arch-x86/syscalls/llistxattr.S
index a5ab636..d326526 100644
--- a/libc/arch-x86/syscalls/llistxattr.S
+++ b/libc/arch-x86/syscalls/llistxattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(llistxattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/lremovexattr.S b/libc/arch-x86/syscalls/lremovexattr.S
index 508abba..b4f4817 100644
--- a/libc/arch-x86/syscalls/lremovexattr.S
+++ b/libc/arch-x86/syscalls/lremovexattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(lremovexattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/lseek.S b/libc/arch-x86/syscalls/lseek.S
index 5f77831..1115be8 100644
--- a/libc/arch-x86/syscalls/lseek.S
+++ b/libc/arch-x86/syscalls/lseek.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(lseek)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/lsetxattr.S b/libc/arch-x86/syscalls/lsetxattr.S
index d878684..fc62cdd 100644
--- a/libc/arch-x86/syscalls/lsetxattr.S
+++ b/libc/arch-x86/syscalls/lsetxattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(lsetxattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/madvise.S b/libc/arch-x86/syscalls/madvise.S
index 3e8c7fd..1de4456 100644
--- a/libc/arch-x86/syscalls/madvise.S
+++ b/libc/arch-x86/syscalls/madvise.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(madvise)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/mincore.S b/libc/arch-x86/syscalls/mincore.S
index 7096f6c..118063c 100644
--- a/libc/arch-x86/syscalls/mincore.S
+++ b/libc/arch-x86/syscalls/mincore.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(mincore)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/mkdirat.S b/libc/arch-x86/syscalls/mkdirat.S
index 862a18c..6969d2a 100644
--- a/libc/arch-x86/syscalls/mkdirat.S
+++ b/libc/arch-x86/syscalls/mkdirat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(mkdirat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/mknodat.S b/libc/arch-x86/syscalls/mknodat.S
index e03ba42..6c743d2 100644
--- a/libc/arch-x86/syscalls/mknodat.S
+++ b/libc/arch-x86/syscalls/mknodat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(mknodat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/mlock.S b/libc/arch-x86/syscalls/mlock.S
index f582f77..5ec799e 100644
--- a/libc/arch-x86/syscalls/mlock.S
+++ b/libc/arch-x86/syscalls/mlock.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(mlock)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/mlockall.S b/libc/arch-x86/syscalls/mlockall.S
index becca81..72a8da5 100644
--- a/libc/arch-x86/syscalls/mlockall.S
+++ b/libc/arch-x86/syscalls/mlockall.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(mlockall)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/mount.S b/libc/arch-x86/syscalls/mount.S
index 7be2811..1e06b8e 100644
--- a/libc/arch-x86/syscalls/mount.S
+++ b/libc/arch-x86/syscalls/mount.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(mount)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/mprotect.S b/libc/arch-x86/syscalls/mprotect.S
index 0516c45..11037c3 100644
--- a/libc/arch-x86/syscalls/mprotect.S
+++ b/libc/arch-x86/syscalls/mprotect.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(mprotect)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/mremap.S b/libc/arch-x86/syscalls/mremap.S
index 42e75ce..b7f96ff 100644
--- a/libc/arch-x86/syscalls/mremap.S
+++ b/libc/arch-x86/syscalls/mremap.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(mremap)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/msync.S b/libc/arch-x86/syscalls/msync.S
index 66722f2..e2549f7 100644
--- a/libc/arch-x86/syscalls/msync.S
+++ b/libc/arch-x86/syscalls/msync.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(msync)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/munlock.S b/libc/arch-x86/syscalls/munlock.S
index 2fc3aa7..6b79e99 100644
--- a/libc/arch-x86/syscalls/munlock.S
+++ b/libc/arch-x86/syscalls/munlock.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(munlock)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/munlockall.S b/libc/arch-x86/syscalls/munlockall.S
index 1bc99ea..96e238b 100644
--- a/libc/arch-x86/syscalls/munlockall.S
+++ b/libc/arch-x86/syscalls/munlockall.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(munlockall)
     movl    $__NR_munlockall, %eax
     int     $0x80
diff --git a/libc/arch-x86/syscalls/munmap.S b/libc/arch-x86/syscalls/munmap.S
index 878aae7..a77a777 100644
--- a/libc/arch-x86/syscalls/munmap.S
+++ b/libc/arch-x86/syscalls/munmap.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(munmap)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/nanosleep.S b/libc/arch-x86/syscalls/nanosleep.S
index fe8af90..444aa7e 100644
--- a/libc/arch-x86/syscalls/nanosleep.S
+++ b/libc/arch-x86/syscalls/nanosleep.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(nanosleep)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/personality.S b/libc/arch-x86/syscalls/personality.S
index 8c8e0ff..5344e1c 100644
--- a/libc/arch-x86/syscalls/personality.S
+++ b/libc/arch-x86/syscalls/personality.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(personality)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/pipe2.S b/libc/arch-x86/syscalls/pipe2.S
index 99c4e8b..62665a0 100644
--- a/libc/arch-x86/syscalls/pipe2.S
+++ b/libc/arch-x86/syscalls/pipe2.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(pipe2)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/prctl.S b/libc/arch-x86/syscalls/prctl.S
index 63ec899..28e84d8 100644
--- a/libc/arch-x86/syscalls/prctl.S
+++ b/libc/arch-x86/syscalls/prctl.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(prctl)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/pread64.S b/libc/arch-x86/syscalls/pread64.S
index 6b3c8ad..e7502b9 100644
--- a/libc/arch-x86/syscalls/pread64.S
+++ b/libc/arch-x86/syscalls/pread64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(pread64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/prlimit64.S b/libc/arch-x86/syscalls/prlimit64.S
index 6aa875f..2ca8b23 100644
--- a/libc/arch-x86/syscalls/prlimit64.S
+++ b/libc/arch-x86/syscalls/prlimit64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(prlimit64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/pwrite64.S b/libc/arch-x86/syscalls/pwrite64.S
index 7d53095..b798a8e 100644
--- a/libc/arch-x86/syscalls/pwrite64.S
+++ b/libc/arch-x86/syscalls/pwrite64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(pwrite64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/read.S b/libc/arch-x86/syscalls/read.S
index 9814c8f..483c5ef 100644
--- a/libc/arch-x86/syscalls/read.S
+++ b/libc/arch-x86/syscalls/read.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(read)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/readahead.S b/libc/arch-x86/syscalls/readahead.S
index 49a17d0..b1e0870 100644
--- a/libc/arch-x86/syscalls/readahead.S
+++ b/libc/arch-x86/syscalls/readahead.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(readahead)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/readlinkat.S b/libc/arch-x86/syscalls/readlinkat.S
index 1a161c0..a06ae73 100644
--- a/libc/arch-x86/syscalls/readlinkat.S
+++ b/libc/arch-x86/syscalls/readlinkat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(readlinkat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/readv.S b/libc/arch-x86/syscalls/readv.S
index 8b5ff41..a0b46b8 100644
--- a/libc/arch-x86/syscalls/readv.S
+++ b/libc/arch-x86/syscalls/readv.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(readv)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/recvfrom.S b/libc/arch-x86/syscalls/recvfrom.S
index 53d08f6..86f12c0 100644
--- a/libc/arch-x86/syscalls/recvfrom.S
+++ b/libc/arch-x86/syscalls/recvfrom.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(recvfrom)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/recvmmsg.S b/libc/arch-x86/syscalls/recvmmsg.S
index 3ef8740..f77f794 100644
--- a/libc/arch-x86/syscalls/recvmmsg.S
+++ b/libc/arch-x86/syscalls/recvmmsg.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(recvmmsg)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/recvmsg.S b/libc/arch-x86/syscalls/recvmsg.S
index 150672d..5d25d7a 100644
--- a/libc/arch-x86/syscalls/recvmsg.S
+++ b/libc/arch-x86/syscalls/recvmsg.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(recvmsg)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/removexattr.S b/libc/arch-x86/syscalls/removexattr.S
index e7c55eb..cbbdf4e 100644
--- a/libc/arch-x86/syscalls/removexattr.S
+++ b/libc/arch-x86/syscalls/removexattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(removexattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/renameat.S b/libc/arch-x86/syscalls/renameat.S
index 5dfe65f..e424daf 100644
--- a/libc/arch-x86/syscalls/renameat.S
+++ b/libc/arch-x86/syscalls/renameat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(renameat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sched_get_priority_max.S b/libc/arch-x86/syscalls/sched_get_priority_max.S
index d8debe2..eee6f92 100644
--- a/libc/arch-x86/syscalls/sched_get_priority_max.S
+++ b/libc/arch-x86/syscalls/sched_get_priority_max.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sched_get_priority_max)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sched_get_priority_min.S b/libc/arch-x86/syscalls/sched_get_priority_min.S
index e9689fa..0edcab1 100644
--- a/libc/arch-x86/syscalls/sched_get_priority_min.S
+++ b/libc/arch-x86/syscalls/sched_get_priority_min.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sched_get_priority_min)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sched_getparam.S b/libc/arch-x86/syscalls/sched_getparam.S
index 6b5e7c8..9a4ebbd 100644
--- a/libc/arch-x86/syscalls/sched_getparam.S
+++ b/libc/arch-x86/syscalls/sched_getparam.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sched_getparam)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sched_getscheduler.S b/libc/arch-x86/syscalls/sched_getscheduler.S
index a2c5746..19a925e 100644
--- a/libc/arch-x86/syscalls/sched_getscheduler.S
+++ b/libc/arch-x86/syscalls/sched_getscheduler.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sched_getscheduler)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sched_rr_get_interval.S b/libc/arch-x86/syscalls/sched_rr_get_interval.S
index f8012f3..c2592a9 100644
--- a/libc/arch-x86/syscalls/sched_rr_get_interval.S
+++ b/libc/arch-x86/syscalls/sched_rr_get_interval.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sched_rr_get_interval)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sched_setaffinity.S b/libc/arch-x86/syscalls/sched_setaffinity.S
index 76013f9..4a0ac86 100644
--- a/libc/arch-x86/syscalls/sched_setaffinity.S
+++ b/libc/arch-x86/syscalls/sched_setaffinity.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sched_setaffinity)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sched_setparam.S b/libc/arch-x86/syscalls/sched_setparam.S
index aca4bd9..a99c0de 100644
--- a/libc/arch-x86/syscalls/sched_setparam.S
+++ b/libc/arch-x86/syscalls/sched_setparam.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sched_setparam)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sched_setscheduler.S b/libc/arch-x86/syscalls/sched_setscheduler.S
index fad72c6..dbfd01e 100644
--- a/libc/arch-x86/syscalls/sched_setscheduler.S
+++ b/libc/arch-x86/syscalls/sched_setscheduler.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sched_setscheduler)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sched_yield.S b/libc/arch-x86/syscalls/sched_yield.S
index 8b4a9be..87ebaf9 100644
--- a/libc/arch-x86/syscalls/sched_yield.S
+++ b/libc/arch-x86/syscalls/sched_yield.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sched_yield)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sendfile.S b/libc/arch-x86/syscalls/sendfile.S
index 7bd86d0..58433fb 100644
--- a/libc/arch-x86/syscalls/sendfile.S
+++ b/libc/arch-x86/syscalls/sendfile.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sendfile)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sendfile64.S b/libc/arch-x86/syscalls/sendfile64.S
index bd76043..97c7146 100644
--- a/libc/arch-x86/syscalls/sendfile64.S
+++ b/libc/arch-x86/syscalls/sendfile64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sendfile64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sendmmsg.S b/libc/arch-x86/syscalls/sendmmsg.S
index 4bc3c40..3c359ee 100644
--- a/libc/arch-x86/syscalls/sendmmsg.S
+++ b/libc/arch-x86/syscalls/sendmmsg.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sendmmsg)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sendmsg.S b/libc/arch-x86/syscalls/sendmsg.S
index eb8fc63..51288cc 100644
--- a/libc/arch-x86/syscalls/sendmsg.S
+++ b/libc/arch-x86/syscalls/sendmsg.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sendmsg)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sendto.S b/libc/arch-x86/syscalls/sendto.S
index 8cb72c8..4b77f24 100644
--- a/libc/arch-x86/syscalls/sendto.S
+++ b/libc/arch-x86/syscalls/sendto.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sendto)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setfsgid.S b/libc/arch-x86/syscalls/setfsgid.S
index fa7a5c5..a8160c3 100644
--- a/libc/arch-x86/syscalls/setfsgid.S
+++ b/libc/arch-x86/syscalls/setfsgid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setfsgid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setfsuid.S b/libc/arch-x86/syscalls/setfsuid.S
index 5856a16..abcf0b3 100644
--- a/libc/arch-x86/syscalls/setfsuid.S
+++ b/libc/arch-x86/syscalls/setfsuid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setfsuid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setgid.S b/libc/arch-x86/syscalls/setgid.S
index baa1b1a..47c011e 100644
--- a/libc/arch-x86/syscalls/setgid.S
+++ b/libc/arch-x86/syscalls/setgid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setgid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setgroups.S b/libc/arch-x86/syscalls/setgroups.S
index 364aaad..7a58910 100644
--- a/libc/arch-x86/syscalls/setgroups.S
+++ b/libc/arch-x86/syscalls/setgroups.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setgroups)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setitimer.S b/libc/arch-x86/syscalls/setitimer.S
index 409c4c6..e87a26e 100644
--- a/libc/arch-x86/syscalls/setitimer.S
+++ b/libc/arch-x86/syscalls/setitimer.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setitimer)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setns.S b/libc/arch-x86/syscalls/setns.S
index ddbe758..75f23fa 100644
--- a/libc/arch-x86/syscalls/setns.S
+++ b/libc/arch-x86/syscalls/setns.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setns)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setpgid.S b/libc/arch-x86/syscalls/setpgid.S
index ac1b12d..c20b789 100644
--- a/libc/arch-x86/syscalls/setpgid.S
+++ b/libc/arch-x86/syscalls/setpgid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setpgid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setpriority.S b/libc/arch-x86/syscalls/setpriority.S
index 93c1e07..4606c23 100644
--- a/libc/arch-x86/syscalls/setpriority.S
+++ b/libc/arch-x86/syscalls/setpriority.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setpriority)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setregid.S b/libc/arch-x86/syscalls/setregid.S
index 0ecfa9a..ff6cf36 100644
--- a/libc/arch-x86/syscalls/setregid.S
+++ b/libc/arch-x86/syscalls/setregid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setregid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setresgid.S b/libc/arch-x86/syscalls/setresgid.S
index a6914c4..a4846ae 100644
--- a/libc/arch-x86/syscalls/setresgid.S
+++ b/libc/arch-x86/syscalls/setresgid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setresgid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setresuid.S b/libc/arch-x86/syscalls/setresuid.S
index c33c1ca..6ed0fad 100644
--- a/libc/arch-x86/syscalls/setresuid.S
+++ b/libc/arch-x86/syscalls/setresuid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setresuid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setreuid.S b/libc/arch-x86/syscalls/setreuid.S
index 4244988..57d7540 100644
--- a/libc/arch-x86/syscalls/setreuid.S
+++ b/libc/arch-x86/syscalls/setreuid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setreuid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setrlimit.S b/libc/arch-x86/syscalls/setrlimit.S
index 3e86504..9ca6134 100644
--- a/libc/arch-x86/syscalls/setrlimit.S
+++ b/libc/arch-x86/syscalls/setrlimit.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setrlimit)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setsid.S b/libc/arch-x86/syscalls/setsid.S
index 398c110..5c933b3 100644
--- a/libc/arch-x86/syscalls/setsid.S
+++ b/libc/arch-x86/syscalls/setsid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setsid)
     movl    $__NR_setsid, %eax
     int     $0x80
diff --git a/libc/arch-x86/syscalls/setsockopt.S b/libc/arch-x86/syscalls/setsockopt.S
index 6ef168f..f002344 100644
--- a/libc/arch-x86/syscalls/setsockopt.S
+++ b/libc/arch-x86/syscalls/setsockopt.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setsockopt)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/settimeofday.S b/libc/arch-x86/syscalls/settimeofday.S
index 37e11c5..b35791d 100644
--- a/libc/arch-x86/syscalls/settimeofday.S
+++ b/libc/arch-x86/syscalls/settimeofday.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(settimeofday)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setuid.S b/libc/arch-x86/syscalls/setuid.S
index fcea66d..f5b8315 100644
--- a/libc/arch-x86/syscalls/setuid.S
+++ b/libc/arch-x86/syscalls/setuid.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setuid)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/setxattr.S b/libc/arch-x86/syscalls/setxattr.S
index d6473cd..24eb2c4 100644
--- a/libc/arch-x86/syscalls/setxattr.S
+++ b/libc/arch-x86/syscalls/setxattr.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(setxattr)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/shutdown.S b/libc/arch-x86/syscalls/shutdown.S
index 32fa17a..e5497e6 100644
--- a/libc/arch-x86/syscalls/shutdown.S
+++ b/libc/arch-x86/syscalls/shutdown.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(shutdown)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sigaltstack.S b/libc/arch-x86/syscalls/sigaltstack.S
index 6882a78..150e398 100644
--- a/libc/arch-x86/syscalls/sigaltstack.S
+++ b/libc/arch-x86/syscalls/sigaltstack.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sigaltstack)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/socketpair.S b/libc/arch-x86/syscalls/socketpair.S
index 945faa0..f2188e3 100644
--- a/libc/arch-x86/syscalls/socketpair.S
+++ b/libc/arch-x86/syscalls/socketpair.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(socketpair)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/splice.S b/libc/arch-x86/syscalls/splice.S
index 46e2312..38d9ddf 100644
--- a/libc/arch-x86/syscalls/splice.S
+++ b/libc/arch-x86/syscalls/splice.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(splice)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/swapoff.S b/libc/arch-x86/syscalls/swapoff.S
index 0e21033..a0cbc0e 100644
--- a/libc/arch-x86/syscalls/swapoff.S
+++ b/libc/arch-x86/syscalls/swapoff.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(swapoff)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/swapon.S b/libc/arch-x86/syscalls/swapon.S
index a4d5e03..5a2bc94 100644
--- a/libc/arch-x86/syscalls/swapon.S
+++ b/libc/arch-x86/syscalls/swapon.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(swapon)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/symlinkat.S b/libc/arch-x86/syscalls/symlinkat.S
index 618f5d8..7d7a9da 100644
--- a/libc/arch-x86/syscalls/symlinkat.S
+++ b/libc/arch-x86/syscalls/symlinkat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(symlinkat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sync.S b/libc/arch-x86/syscalls/sync.S
index a1f1782..423c01d 100644
--- a/libc/arch-x86/syscalls/sync.S
+++ b/libc/arch-x86/syscalls/sync.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sync)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/sysinfo.S b/libc/arch-x86/syscalls/sysinfo.S
index c3eabb0..0870761 100644
--- a/libc/arch-x86/syscalls/sysinfo.S
+++ b/libc/arch-x86/syscalls/sysinfo.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(sysinfo)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/tee.S b/libc/arch-x86/syscalls/tee.S
index 9422660..85ff3cc 100644
--- a/libc/arch-x86/syscalls/tee.S
+++ b/libc/arch-x86/syscalls/tee.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(tee)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/tgkill.S b/libc/arch-x86/syscalls/tgkill.S
index 385827b..aab80e1 100644
--- a/libc/arch-x86/syscalls/tgkill.S
+++ b/libc/arch-x86/syscalls/tgkill.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(tgkill)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/timerfd_create.S b/libc/arch-x86/syscalls/timerfd_create.S
index 343195e..f1bef4c 100644
--- a/libc/arch-x86/syscalls/timerfd_create.S
+++ b/libc/arch-x86/syscalls/timerfd_create.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(timerfd_create)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/timerfd_gettime.S b/libc/arch-x86/syscalls/timerfd_gettime.S
index 9b3a314..d7ec28f 100644
--- a/libc/arch-x86/syscalls/timerfd_gettime.S
+++ b/libc/arch-x86/syscalls/timerfd_gettime.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(timerfd_gettime)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/timerfd_settime.S b/libc/arch-x86/syscalls/timerfd_settime.S
index 819b723..7e03edb 100644
--- a/libc/arch-x86/syscalls/timerfd_settime.S
+++ b/libc/arch-x86/syscalls/timerfd_settime.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(timerfd_settime)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/times.S b/libc/arch-x86/syscalls/times.S
index f5739d3..6a14cff 100644
--- a/libc/arch-x86/syscalls/times.S
+++ b/libc/arch-x86/syscalls/times.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(times)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/truncate.S b/libc/arch-x86/syscalls/truncate.S
index 427f95f..33ce47f 100644
--- a/libc/arch-x86/syscalls/truncate.S
+++ b/libc/arch-x86/syscalls/truncate.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(truncate)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/truncate64.S b/libc/arch-x86/syscalls/truncate64.S
index 2c49751..2168eb4 100644
--- a/libc/arch-x86/syscalls/truncate64.S
+++ b/libc/arch-x86/syscalls/truncate64.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(truncate64)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/umask.S b/libc/arch-x86/syscalls/umask.S
index 3affc8d..03bee20 100644
--- a/libc/arch-x86/syscalls/umask.S
+++ b/libc/arch-x86/syscalls/umask.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(umask)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/umount2.S b/libc/arch-x86/syscalls/umount2.S
index d2b3549..9701e03 100644
--- a/libc/arch-x86/syscalls/umount2.S
+++ b/libc/arch-x86/syscalls/umount2.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(umount2)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/uname.S b/libc/arch-x86/syscalls/uname.S
index e996805..6de3b41 100644
--- a/libc/arch-x86/syscalls/uname.S
+++ b/libc/arch-x86/syscalls/uname.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(uname)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/unlinkat.S b/libc/arch-x86/syscalls/unlinkat.S
index 6417d2b..93ea201 100644
--- a/libc/arch-x86/syscalls/unlinkat.S
+++ b/libc/arch-x86/syscalls/unlinkat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(unlinkat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/unshare.S b/libc/arch-x86/syscalls/unshare.S
index a289d4d..9d11466 100644
--- a/libc/arch-x86/syscalls/unshare.S
+++ b/libc/arch-x86/syscalls/unshare.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(unshare)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/utimensat.S b/libc/arch-x86/syscalls/utimensat.S
index d8c9080..62e1525 100644
--- a/libc/arch-x86/syscalls/utimensat.S
+++ b/libc/arch-x86/syscalls/utimensat.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(utimensat)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/vmsplice.S b/libc/arch-x86/syscalls/vmsplice.S
index 2afba60..4707635 100644
--- a/libc/arch-x86/syscalls/vmsplice.S
+++ b/libc/arch-x86/syscalls/vmsplice.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(vmsplice)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/wait4.S b/libc/arch-x86/syscalls/wait4.S
index fda75c0..137b721 100644
--- a/libc/arch-x86/syscalls/wait4.S
+++ b/libc/arch-x86/syscalls/wait4.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(wait4)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/write.S b/libc/arch-x86/syscalls/write.S
index 115974e..2f040b2 100644
--- a/libc/arch-x86/syscalls/write.S
+++ b/libc/arch-x86/syscalls/write.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(write)
     pushl   %ebx
     .cfi_def_cfa_offset 8
diff --git a/libc/arch-x86/syscalls/writev.S b/libc/arch-x86/syscalls/writev.S
index 77e5cd1..2840eea 100644
--- a/libc/arch-x86/syscalls/writev.S
+++ b/libc/arch-x86/syscalls/writev.S
@@ -2,6 +2,8 @@
 
 #include <private/bionic_asm.h>
 
+    .hidden __set_errno
+
 ENTRY(writev)
     pushl   %ebx
     .cfi_def_cfa_offset 8