From 26db31f6f6a5e034333ff81f2352901201572cba Mon Sep 17 00:00:00 2001
From: Stephen Gregoratto <dev@sgregoratto.me>
Date: Wed, 1 Nov 2023 23:30:17 +1100
Subject: Add `fchmodat2` to the Linux syscall list

This syscall was added to simplify the the libc implementations of
fchmodat, as the original syscall does not take a `flags` argument.

Another syscall, `map_shadow_stack`, was also added for x86_64.
---
 lib/std/os/linux/syscalls.zig | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/std/os/linux/syscalls.zig b/lib/std/os/linux/syscalls.zig
index b919c354c2..b584f2bd17 100644
--- a/lib/std/os/linux/syscalls.zig
+++ b/lib/std/os/linux/syscalls.zig
@@ -443,6 +443,7 @@ pub const X86 = enum(usize) {
     futex_waitv = 449,
     set_mempolicy_home_node = 450,
     cachestat = 451,
+    fchmodat2 = 452,
 };
 
 pub const X64 = enum(usize) {
@@ -809,6 +810,8 @@ pub const X64 = enum(usize) {
     futex_waitv = 449,
     set_mempolicy_home_node = 450,
     cachestat = 451,
+    fchmodat2 = 452,
+    map_shadow_stack = 453,
 };
 
 pub const Arm = enum(usize) {
@@ -1218,6 +1221,7 @@ pub const Arm = enum(usize) {
     futex_waitv = 449,
     set_mempolicy_home_node = 450,
     cachestat = 451,
+    fchmodat2 = 452,
 
     breakpoint = arm_base + 1,
     cacheflush = arm_base + 2,
@@ -1611,6 +1615,7 @@ pub const Sparc64 = enum(usize) {
     futex_waitv = 449,
     set_mempolicy_home_node = 450,
     cachestat = 451,
+    fchmodat2 = 452,
 };
 
 pub const Mips = enum(usize) {
@@ -2035,6 +2040,7 @@ pub const Mips = enum(usize) {
     futex_waitv = Linux + 449,
     set_mempolicy_home_node = Linux + 450,
     cachestat = Linux + 451,
+    fchmodat2 = Linux + 452,
 };
 
 pub const Mips64 = enum(usize) {
@@ -2395,6 +2401,7 @@ pub const Mips64 = enum(usize) {
     futex_waitv = Linux + 449,
     set_mempolicy_home_node = Linux + 450,
     cachestat = Linux + 451,
+    fchmodat2 = Linux + 452,
 };
 
 pub const PowerPC = enum(usize) {
@@ -2830,6 +2837,7 @@ pub const PowerPC = enum(usize) {
     futex_waitv = 449,
     set_mempolicy_home_node = 450,
     cachestat = 451,
+    fchmodat2 = 452,
 };
 
 pub const PowerPC64 = enum(usize) {
@@ -3237,6 +3245,7 @@ pub const PowerPC64 = enum(usize) {
     futex_waitv = 449,
     set_mempolicy_home_node = 450,
     cachestat = 451,
+    fchmodat2 = 452,
 };
 
 pub const Arm64 = enum(usize) {
@@ -3547,6 +3556,7 @@ pub const Arm64 = enum(usize) {
     futex_waitv = 449,
     set_mempolicy_home_node = 450,
     cachestat = 451,
+    fchmodat2 = 452,
 };
 
 pub const RiscV64 = enum(usize) {
@@ -3858,6 +3868,7 @@ pub const RiscV64 = enum(usize) {
     futex_waitv = 449,
     set_mempolicy_home_node = 450,
     cachestat = 451,
+    fchmodat2 = 452,
 
     riscv_flush_icache = arch_specific_syscall + 15,
 };
-- 
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