FreeBSD: fix SIGSTKSZ on arm/aarch64 / add MINSIGSTKSZ

Author: valpackett

src/unix/bsd/freebsdlike/freebsd/aarch64.rs

@@ -5,6 +5,8 @@ pub type time_t = i64;
 pub type suseconds_t = i64;
 pub type register_t = i64;
 
+pub const MINSIGSTKSZ: ::size_t = 4096; // 1024 * 4
+
 pub const _MC_FP_VALID: ::c_int = 0x1;
 
 s! {

src/unix/bsd/freebsdlike/freebsd/arm.rs

@@ -5,6 +5,8 @@ pub type time_t = i64;
 pub type suseconds_t = i32;
 pub type register_t = i32;
 
+pub const MINSIGSTKSZ: ::size_t = 4096; // 1024 * 4
+
 s! {
     pub struct stat {
         pub st_dev: ::dev_t,

src/unix/bsd/freebsdlike/freebsd/mod.rs

@@ -334,9 +334,9 @@ pub const EXTATTR_NAMESPACE_USER: ::c_int = 1;
 pub const EXTATTR_NAMESPACE_SYSTEM: ::c_int = 2;
 
 pub const RAND_MAX: ::c_int = 0x7fff_fffd;
-pub const PTHREAD_STACK_MIN: ::size_t = 2048;
+pub const PTHREAD_STACK_MIN: ::size_t = MINSIGSTKSZ;
 pub const PTHREAD_MUTEX_ADAPTIVE_NP: ::c_int = 4;
-pub const SIGSTKSZ: ::size_t = 34816;
+pub const SIGSTKSZ: ::size_t = MINSIGSTKSZ + 32768;
 pub const SF_NODISKIO: ::c_int = 0x00000001;
 pub const SF_MNOWAIT: ::c_int = 0x00000002;
 pub const SF_SYNC: ::c_int = 0x00000004;

src/unix/bsd/freebsdlike/freebsd/powerpc64.rs

@@ -5,6 +5,8 @@ pub type time_t = i64;
 pub type suseconds_t = i64;
 pub type register_t = i64;
 
+pub const MINSIGSTKSZ: ::size_t = 2048; // 512 * 4
+
 s! {
     pub struct stat {
         pub st_dev: ::dev_t,

src/unix/bsd/freebsdlike/freebsd/x86.rs

@@ -5,6 +5,8 @@ pub type time_t = i32;
 pub type suseconds_t = i32;
 pub type register_t = i32;
 
+pub const MINSIGSTKSZ: ::size_t = 2048; // 512 * 4
+
 s! {
     pub struct stat {
         pub st_dev: ::dev_t,

src/unix/bsd/freebsdlike/freebsd/x86_64/mod.rs

@@ -5,6 +5,8 @@ pub type time_t = i64;
 pub type suseconds_t = i64;
 pub type register_t = i64;
 
+pub const MINSIGSTKSZ: ::size_t = 2048; // 512 * 4
+
 // should be pub(crate), but that requires Rust 1.18.0
 cfg_if! {
     if #[cfg(libc_const_size_of)] {