[llvm-branch-commits] [libc] [libc][stdlib][annex_k] Add ignore_handler_s. (PR #164090)

[Muhammad Bassiouni via llvm-branch-commits]

https://github.com/bassiounix created https://github.com/llvm/llvm-project/pull/164090

[libc][stdlib][annex_k] Add ignore_handler_s.

temp change

>From f7e9e522df2008960a03c8c56b4c2430cfbb74d7 Mon Sep 17 00:00:00 2001
From: bassiounix <muhammad.m.bassiouni at gmail.com>
Date: Tue, 14 Oct 2025 06:20:42 +0300
Subject: [PATCH 1/2] [libc][stdlib][annex_k] Add ignore_handler_s.

---
 libc/config/linux/aarch64/entrypoints.txt |  1 +
 libc/config/linux/riscv/entrypoints.txt   |  1 +
 libc/config/linux/x86_64/entrypoints.txt  |  1 +
 libc/include/CMakeLists.txt               |  1 +
 libc/include/stdlib.yaml                  |  9 +++++++++
 libc/src/stdlib/CMakeLists.txt            | 13 +++++++++++++
 libc/src/stdlib/ignore_handler_s.cpp      | 16 ++++++++++++++++
 libc/src/stdlib/ignore_handler_s.h        | 22 ++++++++++++++++++++++
 8 files changed, 64 insertions(+)
 create mode 100644 libc/src/stdlib/ignore_handler_s.cpp
 create mode 100644 libc/src/stdlib/ignore_handler_s.h

diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index 8bf6c44b1d669..bfff3767e245a 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -1080,6 +1080,7 @@ if(LLVM_LIBC_FULL_BUILD)
     libc.src.stdlib.atexit
     libc.src.stdlib.exit
     libc.src.stdlib.getenv
+    libc.src.stdlib.ignore_handler_s
     libc.src.stdlib.quick_exit
 
     # signal.h entrypoints
diff --git a/libc/config/linux/riscv/entrypoints.txt b/libc/config/linux/riscv/entrypoints.txt
index dffccbab9a8e9..35916c86ee9ab 100644
--- a/libc/config/linux/riscv/entrypoints.txt
+++ b/libc/config/linux/riscv/entrypoints.txt
@@ -1208,6 +1208,7 @@ if(LLVM_LIBC_FULL_BUILD)
     libc.src.stdlib.atexit
     libc.src.stdlib.exit
     libc.src.stdlib.getenv
+    libc.src.stdlib.ignore_handler_s
     libc.src.stdlib.quick_exit
 
     # signal.h entrypoints
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
index b4ab073ec912f..45e4d266f87b7 100644
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -1247,6 +1247,7 @@ if(LLVM_LIBC_FULL_BUILD)
     libc.src.stdlib.atexit
     libc.src.stdlib.exit
     libc.src.stdlib.getenv
+    libc.src.stdlib.ignore_handler_s
     libc.src.stdlib.quick_exit
 
     # signal.h entrypoints
diff --git a/libc/include/CMakeLists.txt b/libc/include/CMakeLists.txt
index 3266b57bc8ecd..74ec0a1078b0c 100644
--- a/libc/include/CMakeLists.txt
+++ b/libc/include/CMakeLists.txt
@@ -360,6 +360,7 @@ add_header_macro(
   ../libc/include/stdlib.yaml
   stdlib.h
   DEPENDS
+    .llvm-libc-macros.annex_k_macros
     .llvm-libc-macros.null_macro
     .llvm-libc-macros.stdlib_macros
     .llvm-libc-types.__atexithandler_t
diff --git a/libc/include/stdlib.yaml b/libc/include/stdlib.yaml
index 29fd6bc3a1e75..e70a8c3a70af0 100644
--- a/libc/include/stdlib.yaml
+++ b/libc/include/stdlib.yaml
@@ -110,6 +110,15 @@ functions:
     return_type: char *
     arguments:
       - type: const char *
+  - name: ignore_handler_s
+    standards:
+      - stdc
+    return_type: void
+    arguments:
+      - type: const char *__restrict
+      - type: void *__restrict
+      - type: errno_t
+    guard: 'LIBC_HAS_ANNEX_K'
   - name: labs
     standards:
       - stdc
diff --git a/libc/src/stdlib/CMakeLists.txt b/libc/src/stdlib/CMakeLists.txt
index c464f82dcbda7..a70c3d6210210 100644
--- a/libc/src/stdlib/CMakeLists.txt
+++ b/libc/src/stdlib/CMakeLists.txt
@@ -653,3 +653,16 @@ add_entrypoint_object(
   DEPENDS
     .${LIBC_TARGET_OS}.system
 )
+
+add_entrypoint_object(
+  ignore_handler_s
+  HDRS
+    ignore_handler_s.h
+  SRCS
+    ignore_handler_s.cpp
+  DEPENDS
+    libc.hdr.types.errno_t
+    libc.src.__support.libc_errno
+    libc.src.__support.macros.config
+    libc.src.__support.macros.attributes
+)
diff --git a/libc/src/stdlib/ignore_handler_s.cpp b/libc/src/stdlib/ignore_handler_s.cpp
new file mode 100644
index 0000000000000..172b1bcdb7b30
--- /dev/null
+++ b/libc/src/stdlib/ignore_handler_s.cpp
@@ -0,0 +1,16 @@
+//===-- Implementation header for ignore_handler_s --------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/stdlib/ignore_handler_s.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(void, ignore_handler_s,
+                   (const char *__restrict, void *__restrict, errno_t)) {}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/stdlib/ignore_handler_s.h b/libc/src/stdlib/ignore_handler_s.h
new file mode 100644
index 0000000000000..07328d4be01ce
--- /dev/null
+++ b/libc/src/stdlib/ignore_handler_s.h
@@ -0,0 +1,22 @@
+//===-- Implementation header for ignore_handler_s --------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_STDLIB_IGNORE_HANDLER_S_H
+#define LLVM_LIBC_SRC_STDLIB_IGNORE_HANDLER_S_H
+
+#include "hdr/types/errno_t.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+void ignore_handler_s(const char *__restrict msg, void *__restrict ptr,
+                      errno_t error);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_STDLIB_IGNORE_HANDLER_S_H

>From 0b20953d8699801b2e97464722715ae1d3180468 Mon Sep 17 00:00:00 2001
From: bassiounix <muhammad.m.bassiouni at gmail.com>
Date: Sat, 18 Oct 2025 17:09:36 +0300
Subject: [PATCH 2/2] temp change

---
 libc/include/stdlib.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libc/include/stdlib.yaml b/libc/include/stdlib.yaml
index e70a8c3a70af0..aed4728a07552 100644
--- a/libc/include/stdlib.yaml
+++ b/libc/include/stdlib.yaml
@@ -110,7 +110,7 @@ functions:
     return_type: char *
     arguments:
       - type: const char *
-  - name: ignore_handler_s
+  - name:  ignore_handler_s
     standards:
       - stdc
     return_type: void