Elevate .text.syscall to .privileged

It turns out adding OpenBSD msyscall() origin verification broke the
--ftrace flag. The executable needs to issue raw syscalls while it's
rewriting itself. So they need to be in the same section, and that's
just plain simpler too.

libc/runtime/abort.S

@@ -21,7 +21,7 @@
 #include "libc/sysv/consts/sig.h"
 #include "libc/sysv/consts/nr.h"
 #include "libc/macros.h"
-.text.syscall
+.privileged
 .source	__FILE__
 
 /	Terminates program abnormally.

libc/runtime/arch_prctl.c

@@ -111,7 +111,7 @@ static int arch_prctl_freebsd(int code, int64_t addr) {
   }
 }
 
-static textsyscall int arch_prctl_xnu(int code, int64_t addr) {
+static privileged noinline int arch_prctl_xnu(int code, int64_t addr) {
   int ax;
   switch (code) {
     case ARCH_SET_GS:
@@ -129,7 +129,7 @@ static textsyscall int arch_prctl_xnu(int code, int64_t addr) {
   }
 }
 
-static textsyscall int arch_prctl_openbsd(int code, int64_t addr) {
+static privileged noinline int arch_prctl_openbsd(int code, int64_t addr) {
   int64_t rax;
   switch (code) {
     case ARCH_GET_FS:

libc/runtime/assertfail.c

@@ -41,7 +41,7 @@ static noasan char *__assert_stpcpy(char *d, const char *s) {
   }
 }
 
-static textsyscall noasan wontreturn void __assert_exit(int rc) {
+static privileged noinline noasan wontreturn void __assert_exit(int rc) {
   if (!IsWindows()) {
     asm volatile("syscall"
                  : /* no outputs */
@@ -53,8 +53,8 @@ static textsyscall noasan wontreturn void __assert_exit(int rc) {
   }
 }
 
-static textsyscall noasan ssize_t __assert_write(const void *data,
-                                                 size_t size) {
+static privileged noinline noasan ssize_t __assert_write(const void *data,
+                                                         size_t size) {
   ssize_t rc;
   uint32_t wrote;
   if (!IsWindows()) {

libc/runtime/exit3.S

@@ -19,7 +19,7 @@
 #include "libc/dce.h"
 #include "libc/runtime/internal.h"
 #include "libc/macros.h"
-.text.syscall
+.privileged
 .source	__FILE__
 
 /	Terminates process, ignoring destructors and atexit() handlers.

libc/runtime/print.greg.c

@@ -48,7 +48,7 @@ static void __sys_print_nt(const void *data, size_t len) {
  * @param len can be computed w/ tinystrlen()
  * @clob nothing except flags
  */
-textsyscall void __print(const void *data, size_t len) {
+privileged noinline void __print(const void *data, size_t len) {
   int64_t ax, ordinal;
   if (WasImported(__imp_WriteFile)) {
     __sys_print_nt(data, len);

libc/runtime/stackchkfail.c

@@ -28,7 +28,7 @@
 /**
  * Aborts program under enemy fire to avoid being taken alive.
  */
-textsyscall noasan void __stack_chk_fail(void) {
+privileged noasan void __stack_chk_fail(void) {
   size_t len;
   const char *msg;
   int64_t ax, cx, si;

libc/runtime/vfork.S

@@ -18,7 +18,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/dce.h"
 #include "libc/macros.h"
-.text.syscall
+.privileged
 
 /	Forks process without copying page tables.
 /