Add auxvec.h to all Androids

These values are universal across architectures,
as they are defined primarily by the Linux UAPI.
Thus adding them to only 64-bit was in error.

Author: workingjubilee

libc-test/semver/android.txt

@@ -137,6 +137,7 @@ ATF_PUBL
 ATF_USETRAILERS
 AT_EMPTY_PATH
 AT_FDCWD
+AT_MINSIGSTKSZ
 AT_NO_AUTOMOUNT
 AT_RECURSIVE
 AT_REMOVEDIR

src/unix/linux_like/android/b64/mod.rs

@@ -264,31 +264,6 @@ pub const RTLD_GLOBAL: ::c_int = 0x00100;
 pub const RTLD_NOW: ::c_int = 2;
 pub const RTLD_DEFAULT: *mut ::c_void = 0i64 as *mut ::c_void;
 
-// From NDK's linux/auxvec.h
-pub const AT_NULL: ::c_ulong = 0;
-pub const AT_IGNORE: ::c_ulong = 1;
-pub const AT_EXECFD: ::c_ulong = 2;
-pub const AT_PHDR: ::c_ulong = 3;
-pub const AT_PHENT: ::c_ulong = 4;
-pub const AT_PHNUM: ::c_ulong = 5;
-pub const AT_PAGESZ: ::c_ulong = 6;
-pub const AT_BASE: ::c_ulong = 7;
-pub const AT_FLAGS: ::c_ulong = 8;
-pub const AT_ENTRY: ::c_ulong = 9;
-pub const AT_NOTELF: ::c_ulong = 10;
-pub const AT_UID: ::c_ulong = 11;
-pub const AT_EUID: ::c_ulong = 12;
-pub const AT_GID: ::c_ulong = 13;
-pub const AT_EGID: ::c_ulong = 14;
-pub const AT_PLATFORM: ::c_ulong = 15;
-pub const AT_HWCAP: ::c_ulong = 16;
-pub const AT_CLKTCK: ::c_ulong = 17;
-pub const AT_SECURE: ::c_ulong = 23;
-pub const AT_BASE_PLATFORM: ::c_ulong = 24;
-pub const AT_RANDOM: ::c_ulong = 25;
-pub const AT_HWCAP2: ::c_ulong = 26;
-pub const AT_EXECFN: ::c_ulong = 31;
-
 pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = pthread_mutex_t {
     value: 0,
     __reserved: [0; 36],

src/unix/linux_like/android/mod.rs

@@ -46,6 +46,39 @@ pub type Elf64_Off = u64;
 pub type Elf64_Word = u32;
 pub type Elf64_Xword = u64;
 
+// keys to the values in the ELF auxiliary vector, usable with getauxval
+// found at uapi/linux/auxvec.h in the kernel
+pub const AT_NULL: ::c_ulong = 0;
+pub const AT_IGNORE: ::c_ulong = 1;
+pub const AT_EXECFD: ::c_ulong = 2;
+pub const AT_PHDR: ::c_ulong = 3;
+pub const AT_PHENT: ::c_ulong = 4;
+pub const AT_PHNUM: ::c_ulong = 5;
+pub const AT_PAGESZ: ::c_ulong = 6;
+pub const AT_BASE: ::c_ulong = 7;
+pub const AT_FLAGS: ::c_ulong = 8;
+pub const AT_ENTRY: ::c_ulong = 9;
+pub const AT_NOTELF: ::c_ulong = 10;
+pub const AT_UID: ::c_ulong = 11;
+pub const AT_EUID: ::c_ulong = 12;
+pub const AT_GID: ::c_ulong = 13;
+pub const AT_EGID: ::c_ulong = 14;
+pub const AT_PLATFORM: ::c_ulong = 15;
+pub const AT_HWCAP: ::c_ulong = 16;
+pub const AT_CLKTCK: ::c_ulong = 17;
+
+pub const AT_SECURE: ::c_ulong = 23;
+pub const AT_BASE_PLATFORM: ::c_ulong = 24;
+pub const AT_RANDOM: ::c_ulong = 25;
+pub const AT_HWCAP2: ::c_ulong = 26;
+
+pub const AT_EXECFN: ::c_ulong = 31;
+
+pub const AT_MINSIGSTKSZ: ::c_ulong = 51;
+// getauxval AT_* values should be current for all "architecture-neutral" ones as of
+// Linux headers: include/uapi/linux/auxvec.h    kernel 6.1
+// Android NDK: libc/kernel/uapi/linux/auxvec.h  NDK 25 (updated ~5.14)
+
 s! {
     pub struct stack_t {
         pub ss_sp: *mut ::c_void,