From c1223eaac5339d3c137a46b8004bfc309eae60f1 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Mon, 17 Apr 2023 18:42:37 +0000
Subject: [PATCH 01/19] Pin new pigweed branch

---
 third_party/pigweed/repo | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/third_party/pigweed/repo b/third_party/pigweed/repo
index 73cac22f49069a..bd5f22c9a762d5 160000
--- a/third_party/pigweed/repo
+++ b/third_party/pigweed/repo
@@ -1 +1 @@
-Subproject commit 73cac22f49069a18fbec3bb60cb5f762b32ce20b
+Subproject commit bd5f22c9a762d508576d6add833628406220efee

From 4351e76bfef8e198390dcc31d148efa3cfc8c3da Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Tue, 18 Apr 2023 17:39:48 +0000
Subject: [PATCH 02/19] Fix issues caught in CI

---
 build/config/compiler/BUILD.gn               |  3 +++
 examples/platform/linux/system_rpc_server.cc | 11 +++++++++--
 examples/platform/silabs/efr32/BUILD.gn      |  4 +---
 src/platform/cc32xx/CC32XXConfig.cpp         |  2 +-
 third_party/nlfaultinjection/BUILD.gn        |  8 ++++++++
 third_party/pigweed/repo                     |  2 +-
 third_party/qpg_sdk/qpg_sdk.gni              |  1 +
 third_party/silabs/efr32_sdk.gni             |  3 +--
 8 files changed, 25 insertions(+), 9 deletions(-)

diff --git a/build/config/compiler/BUILD.gn b/build/config/compiler/BUILD.gn
index 577dac76c66642..f70c42fec0fd4e 100644
--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -207,6 +207,9 @@ config("disabled_warnings") {
       "-Wno-cast-function-type",
       "-Wno-psabi",
       "-Wno-maybe-uninitialized",
+      # When upgrading to gcc 12.2 new compiler warnings were encountered, this suppress
+      # compiler errors to allow gcc rollup, over time these warnings should be addressed.
+      "-Wno-address",
     ]
   }
 }
diff --git a/examples/platform/linux/system_rpc_server.cc b/examples/platform/linux/system_rpc_server.cc
index dee4bb6d7d957e..ff8e52ec94d65e 100644
--- a/examples/platform/linux/system_rpc_server.cc
+++ b/examples/platform/linux/system_rpc_server.cc
@@ -37,6 +37,7 @@ namespace {
 constexpr size_t kMaxTransmissionUnit = 512;
 uint16_t socket_port                  = 33000;
 
+stream::ServerSocket server_socket;
 stream::SocketStream socket_stream;
 
 hdlc::RpcChannelOutput hdlc_channel_output(socket_stream, hdlc::kDefaultRpcAddress, "HDLC channel");
@@ -63,7 +64,10 @@ void Init()
     });
 
     PW_LOG_INFO("Starting pw_rpc server on port %d", socket_port);
-    PW_CHECK_OK(socket_stream.Serve(socket_port));
+    PW_CHECK_OK(server_socket.Listen(socket_port));
+    auto accept_result = server_socket.Accept();
+    PW_CHECK_OK(accept_result.status());
+    socket_stream = *std::move(accept_result);
 }
 
 rpc::Server & Server()
@@ -88,7 +92,10 @@ Status Start()
                 // An out of range status indicates the remote end has disconnected.
                 // Start to serve the connection again, which will allow another
                 // remote to connect.
-                PW_CHECK_OK(socket_stream.Serve(socket_port));
+                PW_CHECK_OK(server_socket.Listen(socket_port));
+                auto accept_result = server_socket.Accept();
+                PW_CHECK_OK(accept_result.status());
+                socket_stream = *std::move(accept_result);
             }
             continue;
         }
diff --git a/examples/platform/silabs/efr32/BUILD.gn b/examples/platform/silabs/efr32/BUILD.gn
index b48f1498469ac0..60508f6abf1107 100644
--- a/examples/platform/silabs/efr32/BUILD.gn
+++ b/examples/platform/silabs/efr32/BUILD.gn
@@ -228,9 +228,7 @@ config("efr32-common-config") {
     defines += [ "HEAP_MONITORING" ]
   }
 
-  # Do not warn for LOAD segment with RWX permissions
-  # Uncomment this cflag when pigweed update is done and GCC 12.2 is used.
-  #ldflags = [ "-Wl,--no-warn-rwx-segment" ]
+  ldflags = [ "-Wl,--no-warn-rwx-segment" ]
 }
 
 config("silabs-wifi-config") {
diff --git a/src/platform/cc32xx/CC32XXConfig.cpp b/src/platform/cc32xx/CC32XXConfig.cpp
index ad0e52ce5571c0..b6ed391b25fea0 100644
--- a/src/platform/cc32xx/CC32XXConfig.cpp
+++ b/src/platform/cc32xx/CC32XXConfig.cpp
@@ -282,7 +282,7 @@ class CC32XXKVSList
 
             // value is stored in the LL, we do not need the value variable above
 
-            delete value;
+            delete[] value;
         }
     }
 };
diff --git a/third_party/nlfaultinjection/BUILD.gn b/third_party/nlfaultinjection/BUILD.gn
index 02f3a7fba06e16..8f671184fdc561 100644
--- a/third_party/nlfaultinjection/BUILD.gn
+++ b/third_party/nlfaultinjection/BUILD.gn
@@ -18,6 +18,13 @@ config("nlfaultinjection_config") {
   include_dirs = [ "repo/include" ]
 }
 
+config("nlfaultinjection_config_private") {
+  cflags = [
+    # We are intentionally inducing faults with this librarys so it makes sense to ignore errors.
+    "-Wno-array-bounds",
+  ]
+}
+
 static_library("nlfaultinjection") {
   sources = [
     "repo/include/nlfaultinjection.hpp",
@@ -27,6 +34,7 @@ static_library("nlfaultinjection") {
   deps = [ "${nlassert_root}:nlassert" ]
 
   public_configs = [ ":nlfaultinjection_config" ]
+  configs = [ ":nlfaultinjection_config_private" ]
 
   output_name = "libnlfaultinjection"
   output_dir = "${root_out_dir}/lib"
diff --git a/third_party/pigweed/repo b/third_party/pigweed/repo
index bd5f22c9a762d5..6b169fab4b4e1d 160000
--- a/third_party/pigweed/repo
+++ b/third_party/pigweed/repo
@@ -1 +1 @@
-Subproject commit bd5f22c9a762d508576d6add833628406220efee
+Subproject commit 6b169fab4b4e1d272ed93558ca055f6d28ccbadf
diff --git a/third_party/qpg_sdk/qpg_sdk.gni b/third_party/qpg_sdk/qpg_sdk.gni
index f9f6ed610b49fc..ea2aef3205208c 100644
--- a/third_party/qpg_sdk/qpg_sdk.gni
+++ b/third_party/qpg_sdk/qpg_sdk.gni
@@ -102,6 +102,7 @@ template("qpg_sdk") {
     cflags += [
       "-Wno-maybe-uninitialized",
       "-Wno-shadow",
+      "-Wno-error=array-parameter",
     ]
 
     # Inherit defines from invoker (i.e. examples app)
diff --git a/third_party/silabs/efr32_sdk.gni b/third_party/silabs/efr32_sdk.gni
index baf89660ce836b..ab1dd6192937f1 100644
--- a/third_party/silabs/efr32_sdk.gni
+++ b/third_party/silabs/efr32_sdk.gni
@@ -504,8 +504,7 @@ template("efr32_sdk") {
       "-Wno-shadow",
 
       # see https://github.com/project-chip/connectedhomeip/issues/26058
-      # Uncomment this cflag when pigweed update is done and GCC 12.2 is used.
-      # "-Wno-error=array-parameter",
+      "-Wno-error=array-parameter",
     ]
 
     if (silabs_family == "efr32mg24" || silabs_family == "mgm24") {

From 775e0b06881581ef64a0f62d82a412c0bec604a1 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Tue, 18 Apr 2023 17:51:01 +0000
Subject: [PATCH 03/19] Fix CI

---
 build/config/compiler/BUILD.gn        | 1 +
 third_party/nlfaultinjection/BUILD.gn | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/build/config/compiler/BUILD.gn b/build/config/compiler/BUILD.gn
index f70c42fec0fd4e..54d7afc919c00a 100644
--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -207,6 +207,7 @@ config("disabled_warnings") {
       "-Wno-cast-function-type",
       "-Wno-psabi",
       "-Wno-maybe-uninitialized",
+
       # When upgrading to gcc 12.2 new compiler warnings were encountered, this suppress
       # compiler errors to allow gcc rollup, over time these warnings should be addressed.
       "-Wno-address",
diff --git a/third_party/nlfaultinjection/BUILD.gn b/third_party/nlfaultinjection/BUILD.gn
index 8f671184fdc561..46dc7a7c8c2994 100644
--- a/third_party/nlfaultinjection/BUILD.gn
+++ b/third_party/nlfaultinjection/BUILD.gn
@@ -34,7 +34,7 @@ static_library("nlfaultinjection") {
   deps = [ "${nlassert_root}:nlassert" ]
 
   public_configs = [ ":nlfaultinjection_config" ]
-  configs = [ ":nlfaultinjection_config_private" ]
+  configs += [ ":nlfaultinjection_config_private" ]
 
   output_name = "libnlfaultinjection"
   output_dir = "${root_out_dir}/lib"

From 5a51a61d96cdf21bec3484acf4076cd8039a3969 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Tue, 18 Apr 2023 19:07:37 +0000
Subject: [PATCH 04/19] Clean up

---
 build/config/compiler/BUILD.gn        | 4 ----
 third_party/nlfaultinjection/BUILD.gn | 8 ++++----
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/build/config/compiler/BUILD.gn b/build/config/compiler/BUILD.gn
index 54d7afc919c00a..577dac76c66642 100644
--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -207,10 +207,6 @@ config("disabled_warnings") {
       "-Wno-cast-function-type",
       "-Wno-psabi",
       "-Wno-maybe-uninitialized",
-
-      # When upgrading to gcc 12.2 new compiler warnings were encountered, this suppress
-      # compiler errors to allow gcc rollup, over time these warnings should be addressed.
-      "-Wno-address",
     ]
   }
 }
diff --git a/third_party/nlfaultinjection/BUILD.gn b/third_party/nlfaultinjection/BUILD.gn
index 46dc7a7c8c2994..740ee69c4d6d28 100644
--- a/third_party/nlfaultinjection/BUILD.gn
+++ b/third_party/nlfaultinjection/BUILD.gn
@@ -18,10 +18,10 @@ config("nlfaultinjection_config") {
   include_dirs = [ "repo/include" ]
 }
 
-config("nlfaultinjection_config_private") {
+config("nlfaultinjection_disable_warnings_config") {
   cflags = [
-    # We are intentionally inducing faults with this librarys so it makes sense to ignore errors.
-    "-Wno-array-bounds",
+    # We are intentionally inducing faults with this library so it makes sense to ignore errors.
+    "-Wno-error=array-bounds",
   ]
 }
 
@@ -34,7 +34,7 @@ static_library("nlfaultinjection") {
   deps = [ "${nlassert_root}:nlassert" ]
 
   public_configs = [ ":nlfaultinjection_config" ]
-  configs += [ ":nlfaultinjection_config_private" ]
+  configs += [ ":nlfaultinjection_disable_warnings_config" ]
 
   output_name = "libnlfaultinjection"
   output_dir = "${root_out_dir}/lib"

From 62b9293fc96ca5ccbddd99daa058d446ef812ee6 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Tue, 18 Apr 2023 21:07:55 +0000
Subject: [PATCH 05/19] Fix QPG plaform CI issues

---
 third_party/qpg_sdk/BUILD.gn    | 4 ++++
 third_party/qpg_sdk/qpg_sdk.gni | 1 -
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/third_party/qpg_sdk/BUILD.gn b/third_party/qpg_sdk/BUILD.gn
index 55e3bb4b5217f6..96e00b7593b26e 100755
--- a/third_party/qpg_sdk/BUILD.gn
+++ b/third_party/qpg_sdk/BUILD.gn
@@ -160,9 +160,13 @@ qpg_make_build("qpg_bootloader") {
   ]
 }
 config("qpg_retain_bootloader") {
+  cflags = [
+    "-Wno-error=array-parameter",
+  ]
   ldflags = [
     "-Wl,-u_binary_bl_userlicense_bin_start",
     "-Wl,-u_binary_bootloader_bin_start",
+    "-Wl,--no-warn-rwx-segment",
   ]
 }
 
diff --git a/third_party/qpg_sdk/qpg_sdk.gni b/third_party/qpg_sdk/qpg_sdk.gni
index ea2aef3205208c..f9f6ed610b49fc 100644
--- a/third_party/qpg_sdk/qpg_sdk.gni
+++ b/third_party/qpg_sdk/qpg_sdk.gni
@@ -102,7 +102,6 @@ template("qpg_sdk") {
     cflags += [
       "-Wno-maybe-uninitialized",
       "-Wno-shadow",
-      "-Wno-error=array-parameter",
     ]
 
     # Inherit defines from invoker (i.e. examples app)

From 6954e94bb3351e8e96eeff32e0d1de8de7b8c6df Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Wed, 19 Apr 2023 16:10:14 +0000
Subject: [PATCH 06/19] Fix CI issues for Ameba

---
 third_party/qpg_sdk/BUILD.gn | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/third_party/qpg_sdk/BUILD.gn b/third_party/qpg_sdk/BUILD.gn
index 96e00b7593b26e..26cf78cf4e52be 100755
--- a/third_party/qpg_sdk/BUILD.gn
+++ b/third_party/qpg_sdk/BUILD.gn
@@ -160,9 +160,6 @@ qpg_make_build("qpg_bootloader") {
   ]
 }
 config("qpg_retain_bootloader") {
-  cflags = [
-    "-Wno-error=array-parameter",
-  ]
   ldflags = [
     "-Wl,-u_binary_bl_userlicense_bin_start",
     "-Wl,-u_binary_bootloader_bin_start",

From 1a331ffd957af7e12253c339a66b110abfcf4585 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Wed, 19 Apr 2023 16:20:47 +0000
Subject: [PATCH 07/19] Fix Ameba CI for real this time

---
 .../Ameba/DiagnosticDataProviderImpl.cpp      | 86 +++++++++----------
 1 file changed, 39 insertions(+), 47 deletions(-)

diff --git a/src/platform/Ameba/DiagnosticDataProviderImpl.cpp b/src/platform/Ameba/DiagnosticDataProviderImpl.cpp
index ad6ae4e31ec4f8..b0377449fdc959 100644
--- a/src/platform/Ameba/DiagnosticDataProviderImpl.cpp
+++ b/src/platform/Ameba/DiagnosticDataProviderImpl.cpp
@@ -186,56 +186,48 @@ CHIP_ERROR DiagnosticDataProviderImpl::GetNetworkInterfaces(NetworkInterface **
     NetworkInterface * head = NULL;
     struct ifaddrs * ifaddr = nullptr;
 
-    if (xnetif == NULL)
+    // xnetif is never null, no need to check. If we do check with -Werror=address, we get compiler error.
+    for (struct netif * ifa = xnetif; ifa != NULL; ifa = ifa->next)
     {
-        ChipLogError(DeviceLayer, "Failed to get network interfaces");
-    }
-    else
-    {
-        for (struct netif * ifa = xnetif; ifa != NULL; ifa = ifa->next)
+        NetworkInterface * ifp = new NetworkInterface();
+
+        Platform::CopyString(ifp->Name, ifa->name);
+
+        ifp->name          = CharSpan::fromCharString(ifp->Name);
+        ifp->isOperational = true;
+        if ((ifa->flags) & NETIF_FLAG_ETHERNET)
+            ifp->type = EMBER_ZCL_INTERFACE_TYPE_ENUM_ETHERNET;
+        else
+            ifp->type = EMBER_ZCL_INTERFACE_TYPE_ENUM_WI_FI;
+        ifp->offPremiseServicesReachableIPv4.SetNull();
+        ifp->offPremiseServicesReachableIPv6.SetNull();
+
+        memcpy(ifp->MacAddress, ifa->hwaddr, sizeof(ifa->hwaddr));
+
+        if (0)
         {
-            NetworkInterface * ifp = new NetworkInterface();
-
-            Platform::CopyString(ifp->Name, ifa->name);
-
-            ifp->name          = CharSpan::fromCharString(ifp->Name);
-            ifp->isOperational = true;
-            if ((ifa->flags) & NETIF_FLAG_ETHERNET)
-                ifp->type = EMBER_ZCL_INTERFACE_TYPE_ENUM_ETHERNET;
-            else
-                ifp->type = EMBER_ZCL_INTERFACE_TYPE_ENUM_WI_FI;
-            ifp->offPremiseServicesReachableIPv4.SetNull();
-            ifp->offPremiseServicesReachableIPv6.SetNull();
-
-            memcpy(ifp->MacAddress, ifa->hwaddr, sizeof(ifa->hwaddr));
-
-            if (0)
-            {
-                ChipLogError(DeviceLayer, "Failed to get network hardware address");
-            }
-            else
-            {
-                // Set 48-bit IEEE MAC Address
-                ifp->hardwareAddress = ByteSpan(ifp->MacAddress, 6);
-            }
-
-            if (ifa->ip_addr.u_addr.ip4.addr != 0)
-            {
-                memcpy(ifp->Ipv4AddressesBuffer[0], &(ifa->ip_addr.u_addr.ip4.addr), kMaxIPv4AddrSize);
-                ifp->Ipv4AddressSpans[0] = ByteSpan(ifp->Ipv4AddressesBuffer[0], kMaxIPv4AddrSize);
-                ifp->IPv4Addresses       = chip::app::DataModel::List<chip::ByteSpan>(ifp->Ipv4AddressSpans, 1);
-            }
-
-            if (ifa->ip6_addr->u_addr.ip6.addr != 0)
-            {
-                memcpy(ifp->Ipv6AddressesBuffer[0], &(ifa->ip6_addr->u_addr.ip6.addr), kMaxIPv6AddrSize);
-                ifp->Ipv6AddressSpans[0] = ByteSpan(ifp->Ipv6AddressesBuffer[0], kMaxIPv6AddrSize);
-                ifp->IPv6Addresses       = chip::app::DataModel::List<chip::ByteSpan>(ifp->Ipv6AddressSpans, 1);
-            }
-
-            ifp->Next = head;
-            head      = ifp;
+            ChipLogError(DeviceLayer, "Failed to get network hardware address");
         }
+        else
+        {
+            // Set 48-bit IEEE MAC Address
+            ifp->hardwareAddress = ByteSpan(ifp->MacAddress, 6);
+        }
+
+        if (ifa->ip_addr.u_addr.ip4.addr != 0)
+        {
+            memcpy(ifp->Ipv4AddressesBuffer[0], &(ifa->ip_addr.u_addr.ip4.addr), kMaxIPv4AddrSize);
+            ifp->Ipv4AddressSpans[0] = ByteSpan(ifp->Ipv4AddressesBuffer[0], kMaxIPv4AddrSize);
+            ifp->IPv4Addresses       = chip::app::DataModel::List<chip::ByteSpan>(ifp->Ipv4AddressSpans, 1);
+        }
+
+        // ifa->ip6_addr->u_addr.ip6.addr is never null, no need to check. If we do check with -Werror=address, we get compiler error.
+        memcpy(ifp->Ipv6AddressesBuffer[0], &(ifa->ip6_addr->u_addr.ip6.addr), kMaxIPv6AddrSize);
+        ifp->Ipv6AddressSpans[0] = ByteSpan(ifp->Ipv6AddressesBuffer[0], kMaxIPv6AddrSize);
+        ifp->IPv6Addresses       = chip::app::DataModel::List<chip::ByteSpan>(ifp->Ipv6AddressSpans, 1);
+
+        ifp->Next = head;
+        head      = ifp;
     }
 
     *netifpp = head;

From 5fbd87575113ac6c1b41936ea81d1569bff23022 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Wed, 19 Apr 2023 16:24:52 +0000
Subject: [PATCH 08/19] Restyle

---
 src/platform/Ameba/DiagnosticDataProviderImpl.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/platform/Ameba/DiagnosticDataProviderImpl.cpp b/src/platform/Ameba/DiagnosticDataProviderImpl.cpp
index b0377449fdc959..b9f2f018e6987d 100644
--- a/src/platform/Ameba/DiagnosticDataProviderImpl.cpp
+++ b/src/platform/Ameba/DiagnosticDataProviderImpl.cpp
@@ -221,7 +221,8 @@ CHIP_ERROR DiagnosticDataProviderImpl::GetNetworkInterfaces(NetworkInterface **
             ifp->IPv4Addresses       = chip::app::DataModel::List<chip::ByteSpan>(ifp->Ipv4AddressSpans, 1);
         }
 
-        // ifa->ip6_addr->u_addr.ip6.addr is never null, no need to check. If we do check with -Werror=address, we get compiler error.
+        // ifa->ip6_addr->u_addr.ip6.addr is never null, no need to check. If we do check with -Werror=address, we get compiler
+        // error.
         memcpy(ifp->Ipv6AddressesBuffer[0], &(ifa->ip6_addr->u_addr.ip6.addr), kMaxIPv6AddrSize);
         ifp->Ipv6AddressSpans[0] = ByteSpan(ifp->Ipv6AddressesBuffer[0], kMaxIPv6AddrSize);
         ifp->IPv6Addresses       = chip::app::DataModel::List<chip::ByteSpan>(ifp->Ipv6AddressSpans, 1);

From 7b2ab0ff74b69f195cb5c17a53b26723db3aa46d Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Wed, 19 Apr 2023 17:38:32 +0000
Subject: [PATCH 09/19] Fix k32w0 and mw320 CI

---
 examples/all-clusters-app/nxp/mw320/BUILD.gn  |   7 +-
 .../nxp/k32w/k32w0/BUILD.gn                   |   1 +
 examples/lighting-app/nxp/k32w/k32w0/BUILD.gn |   1 +
 examples/lock-app/nxp/k32w/k32w0/BUILD.gn     |   1 +
 .../platform/nxp/k32w/k32w0/common/BUILD.gn   |  19 ++
 .../nxp/k32w/k32w0/common/syscalls_stubs.cpp  | 212 ++++++++++++++++++
 examples/platform/nxp/mw320/BUILD.gn          |   4 +
 .../platform/nxp/mw320/syscalls_stubs.cpp     | 212 ++++++++++++++++++
 examples/shell/nxp/k32w/k32w0/BUILD.gn        |   1 +
 third_party/nxp/k32w0_sdk/k32w0_sdk.gni       |   7 +-
 10 files changed, 463 insertions(+), 2 deletions(-)
 create mode 100644 examples/platform/nxp/k32w/k32w0/common/BUILD.gn
 create mode 100644 examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp
 create mode 100644 examples/platform/nxp/mw320/syscalls_stubs.cpp

diff --git a/examples/all-clusters-app/nxp/mw320/BUILD.gn b/examples/all-clusters-app/nxp/mw320/BUILD.gn
index 84d41622d7d8f1..cb03f05d508e03 100644
--- a/examples/all-clusters-app/nxp/mw320/BUILD.gn
+++ b/examples/all-clusters-app/nxp/mw320/BUILD.gn
@@ -63,6 +63,8 @@ mw320_executable("shell_mw320") {
     "${chip_root}/src/setup_payload",
   ]
 
+  deps = ["${examples_plat_dir}:syscalls_stub"]
+
   include_dirs = [
     "${chip_root}/src/platform/nxp/mw320",
     "${examples_plat_dir}/app/project_include",
@@ -84,7 +86,10 @@ mw320_executable("shell_mw320") {
 
   ldscript = "${examples_plat_dir}/app/ldscripts/88MW320_xx_xxxx_flash.ld"
 
-  ldflags = [ "-T" + rebase_path(ldscript, root_build_dir) ]
+  ldflags = [
+    "-T" + rebase_path(ldscript, root_build_dir),
+    "-Wl,--no-warn-rwx-segment"
+  ]
   defines = [
     "MW320_SHELL_STREAMER",
     "SHELL_STREAMER_APP_SPECIFIC",
diff --git a/examples/contact-sensor-app/nxp/k32w/k32w0/BUILD.gn b/examples/contact-sensor-app/nxp/k32w/k32w0/BUILD.gn
index bfc232e963525a..87bd0e3845fea2 100644
--- a/examples/contact-sensor-app/nxp/k32w/k32w0/BUILD.gn
+++ b/examples/contact-sensor-app/nxp/k32w/k32w0/BUILD.gn
@@ -110,6 +110,7 @@ k32w0_executable("contact_sensor_app") {
     "${chip_root}/src/lib",
     "${chip_root}/third_party/mbedtls:mbedtls",
     "${k32w0_platform_dir}/app/support:freertos_mbedtls_utils",
+    "${k32w0_platform_dir}/common:syscalls_stub",
   ]
 
   if (chip_openthread_ftd) {
diff --git a/examples/lighting-app/nxp/k32w/k32w0/BUILD.gn b/examples/lighting-app/nxp/k32w/k32w0/BUILD.gn
index 5daf13dfc7110c..d74415059453fa 100644
--- a/examples/lighting-app/nxp/k32w/k32w0/BUILD.gn
+++ b/examples/lighting-app/nxp/k32w/k32w0/BUILD.gn
@@ -112,6 +112,7 @@ k32w0_executable("light_app") {
     "${chip_root}/src/lib",
     "${chip_root}/third_party/mbedtls:mbedtls",
     "${k32w0_platform_dir}/app/support:freertos_mbedtls_utils",
+    "${k32w0_platform_dir}/common:syscalls_stub",
   ]
 
   if (chip_openthread_ftd) {
diff --git a/examples/lock-app/nxp/k32w/k32w0/BUILD.gn b/examples/lock-app/nxp/k32w/k32w0/BUILD.gn
index 2260f4cf1b58fd..090ea560f3ad3d 100644
--- a/examples/lock-app/nxp/k32w/k32w0/BUILD.gn
+++ b/examples/lock-app/nxp/k32w/k32w0/BUILD.gn
@@ -112,6 +112,7 @@ k32w0_executable("lock_app") {
     "${chip_root}/third_party/mbedtls:mbedtls",
     "${chip_root}/third_party/simw-top-mini:se05x",
     "${k32w0_platform_dir}/app/support:freertos_mbedtls_utils",
+    "${k32w0_platform_dir}/common:syscalls_stub",
   ]
 
   if (chip_openthread_ftd) {
diff --git a/examples/platform/nxp/k32w/k32w0/common/BUILD.gn b/examples/platform/nxp/k32w/k32w0/common/BUILD.gn
new file mode 100644
index 00000000000000..83a099e4c824f2
--- /dev/null
+++ b/examples/platform/nxp/k32w/k32w0/common/BUILD.gn
@@ -0,0 +1,19 @@
+# Copyright (c) 2023 Project CHIP Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import("//build_overrides/chip.gni")
+
+source_set("syscalls_stub") {
+  sources = [ "syscalls_stubs.cpp" ]
+}
diff --git a/examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp b/examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp
new file mode 100644
index 00000000000000..0808ff99cfd744
--- /dev/null
+++ b/examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp
@@ -0,0 +1,212 @@
+/*
+ *
+ *    Copyright (c) 2023 Project CHIP Authors
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+/*
+    This file is only used to implement weak syscall stubs
+    that gcc-arm-none-eabi 12.2.1 expect to link when using Libc
+    (newlib/libc_nano)
+*/
+
+#include <reent.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int _open(const char* pathname, int flags, int mode);
+int _close(int file);
+int _fstat(int file, struct stat * st);
+int _isatty(int file);
+int _lseek(int file, int ptr, int dir);
+int _read(int file, char * ptr, int len);
+int _write(int file, const char * ptr, int len);
+
+int __attribute__((weak)) _open(const char* pathname, int flags, int mode)
+{
+    (void) pathname;
+    (void) flags;
+    (void) mode;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Close a file.
+ *
+ * @param[in] file
+ *  File you want to close.
+ *
+ * @return
+ *  Returns 0 when the file is closed.
+ **************************************************************************/
+int __attribute__((weak)) _close(int file)
+{
+    (void) file;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief Exit the program.
+ * @param[in] status The value to return to the parent process as the
+ *            exit status (not used).
+ **************************************************************************/
+void __attribute__((weak)) _exit(int status)
+{
+    (void) status;
+    while (1)
+    {
+    } /* Hang here forever... */
+}
+
+/*************************************************************************
+ * @brief
+ *  Status of an open file.
+ *
+ * @param[in] file
+ *  Check status for this file.
+ *
+ * @param[in] st
+ *  Status information.
+ *
+ * @return
+ *  Returns 0 when st_mode is set to character special.
+ ************************************************************************/
+int __attribute__((weak)) _fstat(int file, struct stat * st)
+{
+    (void) file;
+    (void) st;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief Get process ID.
+ *************************************************************************/
+int __attribute__((weak)) _getpid(void)
+{
+    return 1;
+}
+
+/**************************************************************************
+ * @brief
+ *  Query whether output stream is a terminal.
+ *
+ * @param[in] file
+ *  Descriptor for the file.
+ *
+ * @return
+ *  Returns 1 when query is done.
+ **************************************************************************/
+int __attribute__((weak)) _isatty(int file)
+{
+    (void) file;
+    return 1;
+}
+
+/**************************************************************************
+ * @brief Send signal to process.
+ * @param[in] pid Process id (not used).
+ * @param[in] sig Signal to send (not used).
+ *************************************************************************/
+int __attribute__((weak)) _kill(int pid, int sig)
+{
+    (void) pid;
+    (void) sig;
+    return -1;
+}
+
+/**************************************************************************
+ * @brief
+ *  Set position in a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file.
+ *
+ * @param[in] ptr
+ *  Poiter to the argument offset.
+ *
+ * @param[in] dir
+ *  Directory whence.
+ *
+ * @return
+ *  Returns 0 when position is set.
+ *************************************************************************/
+int __attribute__((weak)) _lseek(int file, int ptr, int dir)
+{
+    (void) file;
+    (void) ptr;
+    (void) dir;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Read from a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file you want to read from.
+ *
+ * @param[in] ptr
+ *  Pointer to the chacaters that are beeing read.
+ *
+ * @param[in] len
+ *  Number of characters to be read.
+ *
+ * @return
+ *  Number of characters that have been read.
+ *************************************************************************/
+int __attribute__((weak)) _read(int file, char * ptr, int len)
+{
+    (void) file;
+    (void) ptr;
+    (void) len;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Write to a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file you want to write to.
+ *
+ * @param[in] ptr
+ *  Pointer to the text you want to write
+ *
+ * @param[in] len
+ *  Number of characters to be written.
+ *
+ * @return
+ *  Number of characters that have been written.
+ **************************************************************************/
+int __attribute__((weak)) _write(int file, const char * ptr, int len)
+{
+    (void) file;
+    (void) ptr;
+
+    return len;
+}
+
+#ifdef __cplusplus
+}
+#endif
\ No newline at end of file
diff --git a/examples/platform/nxp/mw320/BUILD.gn b/examples/platform/nxp/mw320/BUILD.gn
index 2cfcbd4dcced8a..6675e44b0fcc86 100644
--- a/examples/platform/nxp/mw320/BUILD.gn
+++ b/examples/platform/nxp/mw320/BUILD.gn
@@ -25,3 +25,7 @@ source_set("config_mw320_chip_examples") {
   #  sources = [ "app/project_include/CHIPProjectConfig.h" ]
   public_configs = [ ":chip_examples_project_config" ]
 }
+
+source_set("syscalls_stub") {
+  sources = [ "syscalls_stubs.cpp" ]
+}
\ No newline at end of file
diff --git a/examples/platform/nxp/mw320/syscalls_stubs.cpp b/examples/platform/nxp/mw320/syscalls_stubs.cpp
new file mode 100644
index 00000000000000..0808ff99cfd744
--- /dev/null
+++ b/examples/platform/nxp/mw320/syscalls_stubs.cpp
@@ -0,0 +1,212 @@
+/*
+ *
+ *    Copyright (c) 2023 Project CHIP Authors
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+/*
+    This file is only used to implement weak syscall stubs
+    that gcc-arm-none-eabi 12.2.1 expect to link when using Libc
+    (newlib/libc_nano)
+*/
+
+#include <reent.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int _open(const char* pathname, int flags, int mode);
+int _close(int file);
+int _fstat(int file, struct stat * st);
+int _isatty(int file);
+int _lseek(int file, int ptr, int dir);
+int _read(int file, char * ptr, int len);
+int _write(int file, const char * ptr, int len);
+
+int __attribute__((weak)) _open(const char* pathname, int flags, int mode)
+{
+    (void) pathname;
+    (void) flags;
+    (void) mode;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Close a file.
+ *
+ * @param[in] file
+ *  File you want to close.
+ *
+ * @return
+ *  Returns 0 when the file is closed.
+ **************************************************************************/
+int __attribute__((weak)) _close(int file)
+{
+    (void) file;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief Exit the program.
+ * @param[in] status The value to return to the parent process as the
+ *            exit status (not used).
+ **************************************************************************/
+void __attribute__((weak)) _exit(int status)
+{
+    (void) status;
+    while (1)
+    {
+    } /* Hang here forever... */
+}
+
+/*************************************************************************
+ * @brief
+ *  Status of an open file.
+ *
+ * @param[in] file
+ *  Check status for this file.
+ *
+ * @param[in] st
+ *  Status information.
+ *
+ * @return
+ *  Returns 0 when st_mode is set to character special.
+ ************************************************************************/
+int __attribute__((weak)) _fstat(int file, struct stat * st)
+{
+    (void) file;
+    (void) st;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief Get process ID.
+ *************************************************************************/
+int __attribute__((weak)) _getpid(void)
+{
+    return 1;
+}
+
+/**************************************************************************
+ * @brief
+ *  Query whether output stream is a terminal.
+ *
+ * @param[in] file
+ *  Descriptor for the file.
+ *
+ * @return
+ *  Returns 1 when query is done.
+ **************************************************************************/
+int __attribute__((weak)) _isatty(int file)
+{
+    (void) file;
+    return 1;
+}
+
+/**************************************************************************
+ * @brief Send signal to process.
+ * @param[in] pid Process id (not used).
+ * @param[in] sig Signal to send (not used).
+ *************************************************************************/
+int __attribute__((weak)) _kill(int pid, int sig)
+{
+    (void) pid;
+    (void) sig;
+    return -1;
+}
+
+/**************************************************************************
+ * @brief
+ *  Set position in a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file.
+ *
+ * @param[in] ptr
+ *  Poiter to the argument offset.
+ *
+ * @param[in] dir
+ *  Directory whence.
+ *
+ * @return
+ *  Returns 0 when position is set.
+ *************************************************************************/
+int __attribute__((weak)) _lseek(int file, int ptr, int dir)
+{
+    (void) file;
+    (void) ptr;
+    (void) dir;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Read from a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file you want to read from.
+ *
+ * @param[in] ptr
+ *  Pointer to the chacaters that are beeing read.
+ *
+ * @param[in] len
+ *  Number of characters to be read.
+ *
+ * @return
+ *  Number of characters that have been read.
+ *************************************************************************/
+int __attribute__((weak)) _read(int file, char * ptr, int len)
+{
+    (void) file;
+    (void) ptr;
+    (void) len;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Write to a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file you want to write to.
+ *
+ * @param[in] ptr
+ *  Pointer to the text you want to write
+ *
+ * @param[in] len
+ *  Number of characters to be written.
+ *
+ * @return
+ *  Number of characters that have been written.
+ **************************************************************************/
+int __attribute__((weak)) _write(int file, const char * ptr, int len)
+{
+    (void) file;
+    (void) ptr;
+
+    return len;
+}
+
+#ifdef __cplusplus
+}
+#endif
\ No newline at end of file
diff --git a/examples/shell/nxp/k32w/k32w0/BUILD.gn b/examples/shell/nxp/k32w/k32w0/BUILD.gn
index 19e52dcd502c7b..e58d8349538ef0 100644
--- a/examples/shell/nxp/k32w/k32w0/BUILD.gn
+++ b/examples/shell/nxp/k32w/k32w0/BUILD.gn
@@ -70,6 +70,7 @@ k32w0_executable("shell_app") {
     "${chip_root}/third_party/mbedtls:mbedtls",
     "${chip_root}/third_party/simw-top-mini:se05x",
     "${k32w0_platform_dir}/app/support:freertos_mbedtls_utils",
+    "${k32w0_platform_dir}/common:syscalls_stub",
   ]
 
   cflags = [ "-Wconversion" ]
diff --git a/third_party/nxp/k32w0_sdk/k32w0_sdk.gni b/third_party/nxp/k32w0_sdk/k32w0_sdk.gni
index c42bfd85baa780..8d6b6bccc9c5f0 100644
--- a/third_party/nxp/k32w0_sdk/k32w0_sdk.gni
+++ b/third_party/nxp/k32w0_sdk/k32w0_sdk.gni
@@ -455,7 +455,12 @@ template("k32w0_sdk") {
         "-Wno-parentheses-equality",
       ]
     } else {
-      cflags += [ "-fno-optimize-strlen" ]
+      cflags += [
+        "-fno-optimize-strlen",
+
+        # asdf
+        "-Wno-error=address",
+      ]
     }
 
     # Now add our "system-header" include dirs

From 818663e12b67570b11332ee8b14ccb9ec54dfc32 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Wed, 19 Apr 2023 18:12:58 +0000
Subject: [PATCH 10/19] Restyle

---
 examples/all-clusters-app/nxp/mw320/BUILD.gn               | 4 ++--
 examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp | 6 +++---
 examples/platform/nxp/mw320/BUILD.gn                       | 2 +-
 examples/platform/nxp/mw320/syscalls_stubs.cpp             | 6 +++---
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/examples/all-clusters-app/nxp/mw320/BUILD.gn b/examples/all-clusters-app/nxp/mw320/BUILD.gn
index cb03f05d508e03..7ece20a15a7085 100644
--- a/examples/all-clusters-app/nxp/mw320/BUILD.gn
+++ b/examples/all-clusters-app/nxp/mw320/BUILD.gn
@@ -63,7 +63,7 @@ mw320_executable("shell_mw320") {
     "${chip_root}/src/setup_payload",
   ]
 
-  deps = ["${examples_plat_dir}:syscalls_stub"]
+  deps = [ "${examples_plat_dir}:syscalls_stub" ]
 
   include_dirs = [
     "${chip_root}/src/platform/nxp/mw320",
@@ -88,7 +88,7 @@ mw320_executable("shell_mw320") {
 
   ldflags = [
     "-T" + rebase_path(ldscript, root_build_dir),
-    "-Wl,--no-warn-rwx-segment"
+    "-Wl,--no-warn-rwx-segment",
   ]
   defines = [
     "MW320_SHELL_STREAMER",
diff --git a/examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp b/examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp
index 0808ff99cfd744..f79d00e7105e7b 100644
--- a/examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp
+++ b/examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp
@@ -34,7 +34,7 @@
 extern "C" {
 #endif
 
-int _open(const char* pathname, int flags, int mode);
+int _open(const char * pathname, int flags, int mode);
 int _close(int file);
 int _fstat(int file, struct stat * st);
 int _isatty(int file);
@@ -42,7 +42,7 @@ int _lseek(int file, int ptr, int dir);
 int _read(int file, char * ptr, int len);
 int _write(int file, const char * ptr, int len);
 
-int __attribute__((weak)) _open(const char* pathname, int flags, int mode)
+int __attribute__((weak)) _open(const char * pathname, int flags, int mode)
 {
     (void) pathname;
     (void) flags;
@@ -209,4 +209,4 @@ int __attribute__((weak)) _write(int file, const char * ptr, int len)
 
 #ifdef __cplusplus
 }
-#endif
\ No newline at end of file
+#endif
diff --git a/examples/platform/nxp/mw320/BUILD.gn b/examples/platform/nxp/mw320/BUILD.gn
index 6675e44b0fcc86..9528e188fd1001 100644
--- a/examples/platform/nxp/mw320/BUILD.gn
+++ b/examples/platform/nxp/mw320/BUILD.gn
@@ -28,4 +28,4 @@ source_set("config_mw320_chip_examples") {
 
 source_set("syscalls_stub") {
   sources = [ "syscalls_stubs.cpp" ]
-}
\ No newline at end of file
+}
diff --git a/examples/platform/nxp/mw320/syscalls_stubs.cpp b/examples/platform/nxp/mw320/syscalls_stubs.cpp
index 0808ff99cfd744..f79d00e7105e7b 100644
--- a/examples/platform/nxp/mw320/syscalls_stubs.cpp
+++ b/examples/platform/nxp/mw320/syscalls_stubs.cpp
@@ -34,7 +34,7 @@
 extern "C" {
 #endif
 
-int _open(const char* pathname, int flags, int mode);
+int _open(const char * pathname, int flags, int mode);
 int _close(int file);
 int _fstat(int file, struct stat * st);
 int _isatty(int file);
@@ -42,7 +42,7 @@ int _lseek(int file, int ptr, int dir);
 int _read(int file, char * ptr, int len);
 int _write(int file, const char * ptr, int len);
 
-int __attribute__((weak)) _open(const char* pathname, int flags, int mode)
+int __attribute__((weak)) _open(const char * pathname, int flags, int mode)
 {
     (void) pathname;
     (void) flags;
@@ -209,4 +209,4 @@ int __attribute__((weak)) _write(int file, const char * ptr, int len)
 
 #ifdef __cplusplus
 }
-#endif
\ No newline at end of file
+#endif

From c1be0fec1bdf74bb378f35a0c44cfe35d8eba552 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Wed, 19 Apr 2023 18:53:33 +0000
Subject: [PATCH 11/19] CI fixes for TI platform stuff

---
 third_party/ti_simplelink_sdk/BUILD.gn        |   8 +
 .../ti_simplelink_sdk/syscalls_stubs.cpp      | 212 ++++++++++++++++++
 2 files changed, 220 insertions(+)
 create mode 100644 third_party/ti_simplelink_sdk/syscalls_stubs.cpp

diff --git a/third_party/ti_simplelink_sdk/BUILD.gn b/third_party/ti_simplelink_sdk/BUILD.gn
index 2451ab80e67195..d0b8d79372ea31 100644
--- a/third_party/ti_simplelink_sdk/BUILD.gn
+++ b/third_party/ti_simplelink_sdk/BUILD.gn
@@ -34,6 +34,10 @@ group("ti_simplelink_sysconfig") {
   public_deps = [ ti_simplelink_sysconfig_target ]
 }
 
+source_set("syscalls_stub") {
+  sources = [ "syscalls_stubs.cpp" ]
+}
+
 config("ti_simplelink_mbedtls_config") {
   if (ti_simplelink_device_family == "cc13x2_26x2" ||
       ti_simplelink_device_family == "cc13x2x7_26x2x7") {
@@ -67,6 +71,8 @@ mbedtls_target("mbedtls") {
   public_configs = [ ":ti_simplelink_mbedtls_config" ]
 
   public_deps = [ ti_simplelink_sysconfig_target ]
+
+  deps = [ ":syscalls_stub" ]
 }
 
 config("ti_simplelink_freertos_config") {
@@ -108,4 +114,6 @@ freertos_target("freertos") {
     public_deps =
         [ "${chip_root}/third_party/ti_simplelink_sdk:ti_simplelink_sysconfig" ]
   }
+
+  deps = [ ":syscalls_stub" ]
 }
diff --git a/third_party/ti_simplelink_sdk/syscalls_stubs.cpp b/third_party/ti_simplelink_sdk/syscalls_stubs.cpp
new file mode 100644
index 00000000000000..f79d00e7105e7b
--- /dev/null
+++ b/third_party/ti_simplelink_sdk/syscalls_stubs.cpp
@@ -0,0 +1,212 @@
+/*
+ *
+ *    Copyright (c) 2023 Project CHIP Authors
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+/*
+    This file is only used to implement weak syscall stubs
+    that gcc-arm-none-eabi 12.2.1 expect to link when using Libc
+    (newlib/libc_nano)
+*/
+
+#include <reent.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int _open(const char * pathname, int flags, int mode);
+int _close(int file);
+int _fstat(int file, struct stat * st);
+int _isatty(int file);
+int _lseek(int file, int ptr, int dir);
+int _read(int file, char * ptr, int len);
+int _write(int file, const char * ptr, int len);
+
+int __attribute__((weak)) _open(const char * pathname, int flags, int mode)
+{
+    (void) pathname;
+    (void) flags;
+    (void) mode;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Close a file.
+ *
+ * @param[in] file
+ *  File you want to close.
+ *
+ * @return
+ *  Returns 0 when the file is closed.
+ **************************************************************************/
+int __attribute__((weak)) _close(int file)
+{
+    (void) file;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief Exit the program.
+ * @param[in] status The value to return to the parent process as the
+ *            exit status (not used).
+ **************************************************************************/
+void __attribute__((weak)) _exit(int status)
+{
+    (void) status;
+    while (1)
+    {
+    } /* Hang here forever... */
+}
+
+/*************************************************************************
+ * @brief
+ *  Status of an open file.
+ *
+ * @param[in] file
+ *  Check status for this file.
+ *
+ * @param[in] st
+ *  Status information.
+ *
+ * @return
+ *  Returns 0 when st_mode is set to character special.
+ ************************************************************************/
+int __attribute__((weak)) _fstat(int file, struct stat * st)
+{
+    (void) file;
+    (void) st;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief Get process ID.
+ *************************************************************************/
+int __attribute__((weak)) _getpid(void)
+{
+    return 1;
+}
+
+/**************************************************************************
+ * @brief
+ *  Query whether output stream is a terminal.
+ *
+ * @param[in] file
+ *  Descriptor for the file.
+ *
+ * @return
+ *  Returns 1 when query is done.
+ **************************************************************************/
+int __attribute__((weak)) _isatty(int file)
+{
+    (void) file;
+    return 1;
+}
+
+/**************************************************************************
+ * @brief Send signal to process.
+ * @param[in] pid Process id (not used).
+ * @param[in] sig Signal to send (not used).
+ *************************************************************************/
+int __attribute__((weak)) _kill(int pid, int sig)
+{
+    (void) pid;
+    (void) sig;
+    return -1;
+}
+
+/**************************************************************************
+ * @brief
+ *  Set position in a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file.
+ *
+ * @param[in] ptr
+ *  Poiter to the argument offset.
+ *
+ * @param[in] dir
+ *  Directory whence.
+ *
+ * @return
+ *  Returns 0 when position is set.
+ *************************************************************************/
+int __attribute__((weak)) _lseek(int file, int ptr, int dir)
+{
+    (void) file;
+    (void) ptr;
+    (void) dir;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Read from a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file you want to read from.
+ *
+ * @param[in] ptr
+ *  Pointer to the chacaters that are beeing read.
+ *
+ * @param[in] len
+ *  Number of characters to be read.
+ *
+ * @return
+ *  Number of characters that have been read.
+ *************************************************************************/
+int __attribute__((weak)) _read(int file, char * ptr, int len)
+{
+    (void) file;
+    (void) ptr;
+    (void) len;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Write to a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file you want to write to.
+ *
+ * @param[in] ptr
+ *  Pointer to the text you want to write
+ *
+ * @param[in] len
+ *  Number of characters to be written.
+ *
+ * @return
+ *  Number of characters that have been written.
+ **************************************************************************/
+int __attribute__((weak)) _write(int file, const char * ptr, int len)
+{
+    (void) file;
+    (void) ptr;
+
+    return len;
+}
+
+#ifdef __cplusplus
+}
+#endif

From 02164602d24176d34ec5de3a5d4080c307f75fbb Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Wed, 19 Apr 2023 20:51:42 +0000
Subject: [PATCH 12/19] Fixes CI for Infineon

---
 third_party/infineon/psoc6/BUILD.gn           |  10 +
 third_party/infineon/psoc6/syscalls_stubs.cpp | 212 ++++++++++++++++++
 2 files changed, 222 insertions(+)
 create mode 100644 third_party/infineon/psoc6/syscalls_stubs.cpp

diff --git a/third_party/infineon/psoc6/BUILD.gn b/third_party/infineon/psoc6/BUILD.gn
index ebb79e618655c3..59464a8e2a7cf5 100644
--- a/third_party/infineon/psoc6/BUILD.gn
+++ b/third_party/infineon/psoc6/BUILD.gn
@@ -67,6 +67,9 @@ config("psoc6_sdk_config") {
   asmflags = mtb_json.asflags
   ldflags = filter_exclude(mtb_json.ldflags, [ "-T*" ])
 
+  # TODO, once the issue is properly fixed we should no longer need this warning.
+  cflags_c += [ "-Wno-error=array-parameter" ]
+
   # Pull out linker flags with paths (-T flags) and make paths absolute
   # OTA app provides it's own linker script
   if (!chip_enable_ota_requestor) {
@@ -82,6 +85,8 @@ config("psoc6_sdk_config") {
     }
   }
 
+  ldflags += [ "-Wl,--no-warn-rwx-segment" ]
+
   # --specs=nano.specs is getting added twice and causing compile issues so remove from cxx flags here.
   cflags_c -= [ "--specs=nano.specs" ]
   cflags_cc -= [ "--specs=nano.specs" ]
@@ -89,7 +94,12 @@ config("psoc6_sdk_config") {
   ldflags -= [ "--specs=nano.specs" ]
 }
 
+source_set("syscalls_stub") {
+  sources = [ "syscalls_stubs.cpp" ]
+}
+
 group("psoc6_build") {
   public_configs = [ ":psoc6_sdk_config" ]
   public_deps = [ psoc6_target_project ]
+  deps = [ ":syscalls_stub" ]
 }
diff --git a/third_party/infineon/psoc6/syscalls_stubs.cpp b/third_party/infineon/psoc6/syscalls_stubs.cpp
new file mode 100644
index 00000000000000..f79d00e7105e7b
--- /dev/null
+++ b/third_party/infineon/psoc6/syscalls_stubs.cpp
@@ -0,0 +1,212 @@
+/*
+ *
+ *    Copyright (c) 2023 Project CHIP Authors
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+/*
+    This file is only used to implement weak syscall stubs
+    that gcc-arm-none-eabi 12.2.1 expect to link when using Libc
+    (newlib/libc_nano)
+*/
+
+#include <reent.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int _open(const char * pathname, int flags, int mode);
+int _close(int file);
+int _fstat(int file, struct stat * st);
+int _isatty(int file);
+int _lseek(int file, int ptr, int dir);
+int _read(int file, char * ptr, int len);
+int _write(int file, const char * ptr, int len);
+
+int __attribute__((weak)) _open(const char * pathname, int flags, int mode)
+{
+    (void) pathname;
+    (void) flags;
+    (void) mode;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Close a file.
+ *
+ * @param[in] file
+ *  File you want to close.
+ *
+ * @return
+ *  Returns 0 when the file is closed.
+ **************************************************************************/
+int __attribute__((weak)) _close(int file)
+{
+    (void) file;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief Exit the program.
+ * @param[in] status The value to return to the parent process as the
+ *            exit status (not used).
+ **************************************************************************/
+void __attribute__((weak)) _exit(int status)
+{
+    (void) status;
+    while (1)
+    {
+    } /* Hang here forever... */
+}
+
+/*************************************************************************
+ * @brief
+ *  Status of an open file.
+ *
+ * @param[in] file
+ *  Check status for this file.
+ *
+ * @param[in] st
+ *  Status information.
+ *
+ * @return
+ *  Returns 0 when st_mode is set to character special.
+ ************************************************************************/
+int __attribute__((weak)) _fstat(int file, struct stat * st)
+{
+    (void) file;
+    (void) st;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief Get process ID.
+ *************************************************************************/
+int __attribute__((weak)) _getpid(void)
+{
+    return 1;
+}
+
+/**************************************************************************
+ * @brief
+ *  Query whether output stream is a terminal.
+ *
+ * @param[in] file
+ *  Descriptor for the file.
+ *
+ * @return
+ *  Returns 1 when query is done.
+ **************************************************************************/
+int __attribute__((weak)) _isatty(int file)
+{
+    (void) file;
+    return 1;
+}
+
+/**************************************************************************
+ * @brief Send signal to process.
+ * @param[in] pid Process id (not used).
+ * @param[in] sig Signal to send (not used).
+ *************************************************************************/
+int __attribute__((weak)) _kill(int pid, int sig)
+{
+    (void) pid;
+    (void) sig;
+    return -1;
+}
+
+/**************************************************************************
+ * @brief
+ *  Set position in a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file.
+ *
+ * @param[in] ptr
+ *  Poiter to the argument offset.
+ *
+ * @param[in] dir
+ *  Directory whence.
+ *
+ * @return
+ *  Returns 0 when position is set.
+ *************************************************************************/
+int __attribute__((weak)) _lseek(int file, int ptr, int dir)
+{
+    (void) file;
+    (void) ptr;
+    (void) dir;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Read from a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file you want to read from.
+ *
+ * @param[in] ptr
+ *  Pointer to the chacaters that are beeing read.
+ *
+ * @param[in] len
+ *  Number of characters to be read.
+ *
+ * @return
+ *  Number of characters that have been read.
+ *************************************************************************/
+int __attribute__((weak)) _read(int file, char * ptr, int len)
+{
+    (void) file;
+    (void) ptr;
+    (void) len;
+    return 0;
+}
+
+/**************************************************************************
+ * @brief
+ *  Write to a file.
+ *
+ * @param[in] file
+ *  Descriptor for the file you want to write to.
+ *
+ * @param[in] ptr
+ *  Pointer to the text you want to write
+ *
+ * @param[in] len
+ *  Number of characters to be written.
+ *
+ * @return
+ *  Number of characters that have been written.
+ **************************************************************************/
+int __attribute__((weak)) _write(int file, const char * ptr, int len)
+{
+    (void) file;
+    (void) ptr;
+
+    return len;
+}
+
+#ifdef __cplusplus
+}
+#endif

From f4e11ac93c101d8b016f50c84466a7c232aa0bc6 Mon Sep 17 00:00:00 2001
From: Junior Martinez <67972863+jmartinez-silabs@users.noreply.github.com>
Date: Wed, 19 Apr 2023 18:07:43 -0400
Subject: [PATCH 13/19] Fix/efr32 ci with pw roll up (#113)

* add syscall_stubs to efr32 test driver to support gcc 12

* fix release pw rpc build, and test driver
---
 src/test_driver/efr32/BUILD.gn   | 6 +++++-
 third_party/silabs/efr32_sdk.gni | 3 +++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/test_driver/efr32/BUILD.gn b/src/test_driver/efr32/BUILD.gn
index e440bb3ac475c2..76251e3d2b931d 100644
--- a/src/test_driver/efr32/BUILD.gn
+++ b/src/test_driver/efr32/BUILD.gn
@@ -72,6 +72,7 @@ silabs_executable("efr32_device_tests") {
     "${chip_root}/examples/common/pigweed/efr32/PigweedLoggerMutex.cpp",
     "${examples_common_plat_dir}/PigweedLogger.cpp",
     "${examples_common_plat_dir}/heap_4_silabs.c",
+    "${examples_common_plat_dir}/syscalls_stubs.cpp",
     "${examples_plat_dir}/init_efrPlatform.cpp",
     "${examples_plat_dir}/uart.cpp",
     "src/main.cpp",
@@ -111,7 +112,10 @@ silabs_executable("efr32_device_tests") {
 
   inputs = [ ldscript ]
 
-  ldflags = [ "-T" + rebase_path(ldscript, root_build_dir) ]
+  ldflags = [
+    "-T" + rebase_path(ldscript, root_build_dir),
+    "-Wl,--no-warn-rwx-segment",
+  ]
 
   output_dir = root_out_dir
 }
diff --git a/third_party/silabs/efr32_sdk.gni b/third_party/silabs/efr32_sdk.gni
index ab1dd6192937f1..97de1caf125afe 100644
--- a/third_party/silabs/efr32_sdk.gni
+++ b/third_party/silabs/efr32_sdk.gni
@@ -505,6 +505,9 @@ template("efr32_sdk") {
 
       # see https://github.com/project-chip/connectedhomeip/issues/26058
       "-Wno-error=array-parameter",
+
+      # see https://github.com/project-chip/connectedhomeip/issues/26170
+      "-Wno-error=array-bounds",
     ]
 
     if (silabs_family == "efr32mg24" || silabs_family == "mgm24") {

From 10e09fa4e9c9b395f8c8773aa5b7377d9428b876 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Thu, 20 Apr 2023 14:25:32 +0000
Subject: [PATCH 14/19] Fix CI for Infineon cyw30739

---
 third_party/infineon/cyw30739_sdk/BUILD.gn | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/third_party/infineon/cyw30739_sdk/BUILD.gn b/third_party/infineon/cyw30739_sdk/BUILD.gn
index 75b9e272840b63..acf9e1154d78b8 100644
--- a/third_party/infineon/cyw30739_sdk/BUILD.gn
+++ b/third_party/infineon/cyw30739_sdk/BUILD.gn
@@ -25,8 +25,13 @@ declare_args() {
 
 assert(cyw30739_sdk_target != "", "cyw30739_sdk_target must be specified")
 
+config("cyw30739_sdk_special_linker_config") {
+  ldflags = [ "-Wl,--no-warn-rwx-segment" ]
+}
+
 group("cyw30739_sdk") {
   public_deps = [ cyw30739_sdk_target ]
+  all_dependent_configs = [ ":cyw30739_sdk_special_linker_config" ]
 }
 
 config("mbedtls_cyw30739_config") {

From d3c023bef6376887abca3292633db28c8a203d02 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Mon, 24 Apr 2023 12:35:08 +0000
Subject: [PATCH 15/19] Roll to latest pigweed commit

---
 third_party/pigweed/repo | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/third_party/pigweed/repo b/third_party/pigweed/repo
index 6b169fab4b4e1d..b88cd71d271c41 160000
--- a/third_party/pigweed/repo
+++ b/third_party/pigweed/repo
@@ -1 +1 @@
-Subproject commit 6b169fab4b4e1d272ed93558ca055f6d28ccbadf
+Subproject commit b88cd71d271c41e34a36dfc1c435e1e6ee3bc72a

From fcbf6f50413764cc6dde7082e96cd62f55f8a95e Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Mon, 24 Apr 2023 13:31:27 +0000
Subject: [PATCH 16/19] Clean up for review

---
 examples/all-clusters-app/nxp/mw320/BUILD.gn  |   2 +-
 .../nxp/k32w/k32w0/BUILD.gn                   |   2 +-
 examples/lighting-app/nxp/k32w/k32w0/BUILD.gn |   2 +-
 examples/lock-app/nxp/k32w/k32w0/BUILD.gn     |   2 +-
 .../platform/nxp/k32w/k32w0/common/BUILD.gn   |  19 --
 examples/platform/nxp/mw320/BUILD.gn          |  31 ---
 .../platform/nxp/mw320/syscalls_stubs.cpp     | 212 ------------------
 examples/shell/nxp/k32w/k32w0/BUILD.gn        |   2 +-
 src/platform/BUILD.gn                         |   4 +
 .../platform/SyscallStubs.cpp                 |  12 +-
 third_party/infineon/cyw30739_sdk/BUILD.gn    |   4 +-
 third_party/infineon/psoc6/syscalls_stubs.cpp |  12 +-
 third_party/nxp/k32w0_sdk/k32w0_sdk.gni       |   5 +-
 .../ti_simplelink_sdk/syscalls_stubs.cpp      |  12 +-
 14 files changed, 48 insertions(+), 273 deletions(-)
 delete mode 100644 examples/platform/nxp/k32w/k32w0/common/BUILD.gn
 delete mode 100644 examples/platform/nxp/mw320/BUILD.gn
 delete mode 100644 examples/platform/nxp/mw320/syscalls_stubs.cpp
 rename examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp => src/platform/SyscallStubs.cpp (94%)

diff --git a/examples/all-clusters-app/nxp/mw320/BUILD.gn b/examples/all-clusters-app/nxp/mw320/BUILD.gn
index 7ece20a15a7085..0884310a04d18a 100644
--- a/examples/all-clusters-app/nxp/mw320/BUILD.gn
+++ b/examples/all-clusters-app/nxp/mw320/BUILD.gn
@@ -63,7 +63,7 @@ mw320_executable("shell_mw320") {
     "${chip_root}/src/setup_payload",
   ]
 
-  deps = [ "${examples_plat_dir}:syscalls_stub" ]
+  deps = [ "${chip_root}/src/platform:syscalls_stub" ]
 
   include_dirs = [
     "${chip_root}/src/platform/nxp/mw320",
diff --git a/examples/contact-sensor-app/nxp/k32w/k32w0/BUILD.gn b/examples/contact-sensor-app/nxp/k32w/k32w0/BUILD.gn
index 87bd0e3845fea2..0087777552cdce 100644
--- a/examples/contact-sensor-app/nxp/k32w/k32w0/BUILD.gn
+++ b/examples/contact-sensor-app/nxp/k32w/k32w0/BUILD.gn
@@ -108,9 +108,9 @@ k32w0_executable("contact_sensor_app") {
     "${chip_root}/examples/contact-sensor-app/contact-sensor-common",
     "${chip_root}/examples/providers:device_info_provider",
     "${chip_root}/src/lib",
+    "${chip_root}/src/platform:syscalls_stub",
     "${chip_root}/third_party/mbedtls:mbedtls",
     "${k32w0_platform_dir}/app/support:freertos_mbedtls_utils",
-    "${k32w0_platform_dir}/common:syscalls_stub",
   ]
 
   if (chip_openthread_ftd) {
diff --git a/examples/lighting-app/nxp/k32w/k32w0/BUILD.gn b/examples/lighting-app/nxp/k32w/k32w0/BUILD.gn
index d74415059453fa..3ccf6f3df1b282 100644
--- a/examples/lighting-app/nxp/k32w/k32w0/BUILD.gn
+++ b/examples/lighting-app/nxp/k32w/k32w0/BUILD.gn
@@ -110,9 +110,9 @@ k32w0_executable("light_app") {
     "${chip_root}/examples/lighting-app/nxp/zap/",
     "${chip_root}/examples/providers:device_info_provider",
     "${chip_root}/src/lib",
+    "${chip_root}/src/platform:syscalls_stub",
     "${chip_root}/third_party/mbedtls:mbedtls",
     "${k32w0_platform_dir}/app/support:freertos_mbedtls_utils",
-    "${k32w0_platform_dir}/common:syscalls_stub",
   ]
 
   if (chip_openthread_ftd) {
diff --git a/examples/lock-app/nxp/k32w/k32w0/BUILD.gn b/examples/lock-app/nxp/k32w/k32w0/BUILD.gn
index 090ea560f3ad3d..70753788008300 100644
--- a/examples/lock-app/nxp/k32w/k32w0/BUILD.gn
+++ b/examples/lock-app/nxp/k32w/k32w0/BUILD.gn
@@ -109,10 +109,10 @@ k32w0_executable("lock_app") {
     "${chip_root}/examples/providers:device_info_provider",
     "${chip_root}/src/crypto",
     "${chip_root}/src/lib",
+    "${chip_root}/src/platform:syscalls_stub",
     "${chip_root}/third_party/mbedtls:mbedtls",
     "${chip_root}/third_party/simw-top-mini:se05x",
     "${k32w0_platform_dir}/app/support:freertos_mbedtls_utils",
-    "${k32w0_platform_dir}/common:syscalls_stub",
   ]
 
   if (chip_openthread_ftd) {
diff --git a/examples/platform/nxp/k32w/k32w0/common/BUILD.gn b/examples/platform/nxp/k32w/k32w0/common/BUILD.gn
deleted file mode 100644
index 83a099e4c824f2..00000000000000
--- a/examples/platform/nxp/k32w/k32w0/common/BUILD.gn
+++ /dev/null
@@ -1,19 +0,0 @@
-# Copyright (c) 2023 Project CHIP Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-import("//build_overrides/chip.gni")
-
-source_set("syscalls_stub") {
-  sources = [ "syscalls_stubs.cpp" ]
-}
diff --git a/examples/platform/nxp/mw320/BUILD.gn b/examples/platform/nxp/mw320/BUILD.gn
deleted file mode 100644
index 9528e188fd1001..00000000000000
--- a/examples/platform/nxp/mw320/BUILD.gn
+++ /dev/null
@@ -1,31 +0,0 @@
-# Copyright (c) 2020 Project CHIP Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-import("//build_overrides/chip.gni")
-import("//build_overrides/mw320_sdk.gni")
-
-import("${mw320_sdk_build_root}/mw320_sdk.gni")
-
-config("chip_examples_project_config") {
-  include_dirs = [ "app/project_include" ]
-}
-
-source_set("config_mw320_chip_examples") {
-  #  sources = [ "app/project_include/CHIPProjectConfig.h" ]
-  public_configs = [ ":chip_examples_project_config" ]
-}
-
-source_set("syscalls_stub") {
-  sources = [ "syscalls_stubs.cpp" ]
-}
diff --git a/examples/platform/nxp/mw320/syscalls_stubs.cpp b/examples/platform/nxp/mw320/syscalls_stubs.cpp
deleted file mode 100644
index f79d00e7105e7b..00000000000000
--- a/examples/platform/nxp/mw320/syscalls_stubs.cpp
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- *
- *    Copyright (c) 2023 Project CHIP Authors
- *
- *    Licensed under the Apache License, Version 2.0 (the "License");
- *    you may not use this file except in compliance with the License.
- *    You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- *    Unless required by applicable law or agreed to in writing, software
- *    distributed under the License is distributed on an "AS IS" BASIS,
- *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *    See the License for the specific language governing permissions and
- *    limitations under the License.
- */
-
-/*
-    This file is only used to implement weak syscall stubs
-    that gcc-arm-none-eabi 12.2.1 expect to link when using Libc
-    (newlib/libc_nano)
-*/
-
-#include <reent.h>
-#include <stdarg.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-int _open(const char * pathname, int flags, int mode);
-int _close(int file);
-int _fstat(int file, struct stat * st);
-int _isatty(int file);
-int _lseek(int file, int ptr, int dir);
-int _read(int file, char * ptr, int len);
-int _write(int file, const char * ptr, int len);
-
-int __attribute__((weak)) _open(const char * pathname, int flags, int mode)
-{
-    (void) pathname;
-    (void) flags;
-    (void) mode;
-    return 0;
-}
-
-/**************************************************************************
- * @brief
- *  Close a file.
- *
- * @param[in] file
- *  File you want to close.
- *
- * @return
- *  Returns 0 when the file is closed.
- **************************************************************************/
-int __attribute__((weak)) _close(int file)
-{
-    (void) file;
-    return 0;
-}
-
-/**************************************************************************
- * @brief Exit the program.
- * @param[in] status The value to return to the parent process as the
- *            exit status (not used).
- **************************************************************************/
-void __attribute__((weak)) _exit(int status)
-{
-    (void) status;
-    while (1)
-    {
-    } /* Hang here forever... */
-}
-
-/*************************************************************************
- * @brief
- *  Status of an open file.
- *
- * @param[in] file
- *  Check status for this file.
- *
- * @param[in] st
- *  Status information.
- *
- * @return
- *  Returns 0 when st_mode is set to character special.
- ************************************************************************/
-int __attribute__((weak)) _fstat(int file, struct stat * st)
-{
-    (void) file;
-    (void) st;
-    return 0;
-}
-
-/**************************************************************************
- * @brief Get process ID.
- *************************************************************************/
-int __attribute__((weak)) _getpid(void)
-{
-    return 1;
-}
-
-/**************************************************************************
- * @brief
- *  Query whether output stream is a terminal.
- *
- * @param[in] file
- *  Descriptor for the file.
- *
- * @return
- *  Returns 1 when query is done.
- **************************************************************************/
-int __attribute__((weak)) _isatty(int file)
-{
-    (void) file;
-    return 1;
-}
-
-/**************************************************************************
- * @brief Send signal to process.
- * @param[in] pid Process id (not used).
- * @param[in] sig Signal to send (not used).
- *************************************************************************/
-int __attribute__((weak)) _kill(int pid, int sig)
-{
-    (void) pid;
-    (void) sig;
-    return -1;
-}
-
-/**************************************************************************
- * @brief
- *  Set position in a file.
- *
- * @param[in] file
- *  Descriptor for the file.
- *
- * @param[in] ptr
- *  Poiter to the argument offset.
- *
- * @param[in] dir
- *  Directory whence.
- *
- * @return
- *  Returns 0 when position is set.
- *************************************************************************/
-int __attribute__((weak)) _lseek(int file, int ptr, int dir)
-{
-    (void) file;
-    (void) ptr;
-    (void) dir;
-    return 0;
-}
-
-/**************************************************************************
- * @brief
- *  Read from a file.
- *
- * @param[in] file
- *  Descriptor for the file you want to read from.
- *
- * @param[in] ptr
- *  Pointer to the chacaters that are beeing read.
- *
- * @param[in] len
- *  Number of characters to be read.
- *
- * @return
- *  Number of characters that have been read.
- *************************************************************************/
-int __attribute__((weak)) _read(int file, char * ptr, int len)
-{
-    (void) file;
-    (void) ptr;
-    (void) len;
-    return 0;
-}
-
-/**************************************************************************
- * @brief
- *  Write to a file.
- *
- * @param[in] file
- *  Descriptor for the file you want to write to.
- *
- * @param[in] ptr
- *  Pointer to the text you want to write
- *
- * @param[in] len
- *  Number of characters to be written.
- *
- * @return
- *  Number of characters that have been written.
- **************************************************************************/
-int __attribute__((weak)) _write(int file, const char * ptr, int len)
-{
-    (void) file;
-    (void) ptr;
-
-    return len;
-}
-
-#ifdef __cplusplus
-}
-#endif
diff --git a/examples/shell/nxp/k32w/k32w0/BUILD.gn b/examples/shell/nxp/k32w/k32w0/BUILD.gn
index e58d8349538ef0..8b062831685aea 100644
--- a/examples/shell/nxp/k32w/k32w0/BUILD.gn
+++ b/examples/shell/nxp/k32w/k32w0/BUILD.gn
@@ -67,10 +67,10 @@ k32w0_executable("shell_app") {
     "${chip_root}/examples/common/QRCode",
     "${chip_root}/examples/lock-app/lock-common",
     "${chip_root}/examples/shell/shell_common:shell_common",
+    "${chip_root}/src/platform:syscalls_stub",
     "${chip_root}/third_party/mbedtls:mbedtls",
     "${chip_root}/third_party/simw-top-mini:se05x",
     "${k32w0_platform_dir}/app/support:freertos_mbedtls_utils",
-    "${k32w0_platform_dir}/common:syscalls_stub",
   ]
 
   cflags = [ "-Wconversion" ]
diff --git a/src/platform/BUILD.gn b/src/platform/BUILD.gn
index 678cbb8778fc79..9f39a48bcdb784 100644
--- a/src/platform/BUILD.gn
+++ b/src/platform/BUILD.gn
@@ -487,3 +487,7 @@ if (chip_device_platform != "none") {
     public_deps = [ ":platform_buildconfig" ]
   }
 }
+
+source_set("syscalls_stub") {
+  sources = ["SyscallStubs.cpp"]
+}
\ No newline at end of file
diff --git a/examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp b/src/platform/SyscallStubs.cpp
similarity index 94%
rename from examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp
rename to src/platform/SyscallStubs.cpp
index f79d00e7105e7b..12ccf8af801158 100644
--- a/examples/platform/nxp/k32w/k32w0/common/syscalls_stubs.cpp
+++ b/src/platform/SyscallStubs.cpp
@@ -42,12 +42,22 @@ int _lseek(int file, int ptr, int dir);
 int _read(int file, char * ptr, int len);
 int _write(int file, const char * ptr, int len);
 
+/**************************************************************************
+ * @brief
+ *  Open a file.
+ *
+ * @param[in] file
+ *  File you want to open.
+ *
+ * @return
+ *  Returns -1 since there is not logic here to open file.
+ **************************************************************************/
 int __attribute__((weak)) _open(const char * pathname, int flags, int mode)
 {
     (void) pathname;
     (void) flags;
     (void) mode;
-    return 0;
+    return -1;
 }
 
 /**************************************************************************
diff --git a/third_party/infineon/cyw30739_sdk/BUILD.gn b/third_party/infineon/cyw30739_sdk/BUILD.gn
index acf9e1154d78b8..46ca83b4eae8e4 100644
--- a/third_party/infineon/cyw30739_sdk/BUILD.gn
+++ b/third_party/infineon/cyw30739_sdk/BUILD.gn
@@ -25,13 +25,13 @@ declare_args() {
 
 assert(cyw30739_sdk_target != "", "cyw30739_sdk_target must be specified")
 
-config("cyw30739_sdk_special_linker_config") {
+config("cyw30739_sdk_no_warn_rwx") {
   ldflags = [ "-Wl,--no-warn-rwx-segment" ]
 }
 
 group("cyw30739_sdk") {
   public_deps = [ cyw30739_sdk_target ]
-  all_dependent_configs = [ ":cyw30739_sdk_special_linker_config" ]
+  all_dependent_configs = [ ":cyw30739_sdk_no_warn_rwx" ]
 }
 
 config("mbedtls_cyw30739_config") {
diff --git a/third_party/infineon/psoc6/syscalls_stubs.cpp b/third_party/infineon/psoc6/syscalls_stubs.cpp
index f79d00e7105e7b..12ccf8af801158 100644
--- a/third_party/infineon/psoc6/syscalls_stubs.cpp
+++ b/third_party/infineon/psoc6/syscalls_stubs.cpp
@@ -42,12 +42,22 @@ int _lseek(int file, int ptr, int dir);
 int _read(int file, char * ptr, int len);
 int _write(int file, const char * ptr, int len);
 
+/**************************************************************************
+ * @brief
+ *  Open a file.
+ *
+ * @param[in] file
+ *  File you want to open.
+ *
+ * @return
+ *  Returns -1 since there is not logic here to open file.
+ **************************************************************************/
 int __attribute__((weak)) _open(const char * pathname, int flags, int mode)
 {
     (void) pathname;
     (void) flags;
     (void) mode;
-    return 0;
+    return -1;
 }
 
 /**************************************************************************
diff --git a/third_party/nxp/k32w0_sdk/k32w0_sdk.gni b/third_party/nxp/k32w0_sdk/k32w0_sdk.gni
index 8d6b6bccc9c5f0..b9900540a79169 100644
--- a/third_party/nxp/k32w0_sdk/k32w0_sdk.gni
+++ b/third_party/nxp/k32w0_sdk/k32w0_sdk.gni
@@ -458,7 +458,10 @@ template("k32w0_sdk") {
       cflags += [
         "-fno-optimize-strlen",
 
-        # asdf
+        # TODO After upgrading the compiler we started to see new error from address
+        # warning. To allow PR that rolls up compiler we have suppress this warning
+        # as an error temporarily.
+        # see https://github.com/project-chip/connectedhomeip/issues/26221
         "-Wno-error=address",
       ]
     }
diff --git a/third_party/ti_simplelink_sdk/syscalls_stubs.cpp b/third_party/ti_simplelink_sdk/syscalls_stubs.cpp
index f79d00e7105e7b..12ccf8af801158 100644
--- a/third_party/ti_simplelink_sdk/syscalls_stubs.cpp
+++ b/third_party/ti_simplelink_sdk/syscalls_stubs.cpp
@@ -42,12 +42,22 @@ int _lseek(int file, int ptr, int dir);
 int _read(int file, char * ptr, int len);
 int _write(int file, const char * ptr, int len);
 
+/**************************************************************************
+ * @brief
+ *  Open a file.
+ *
+ * @param[in] file
+ *  File you want to open.
+ *
+ * @return
+ *  Returns -1 since there is not logic here to open file.
+ **************************************************************************/
 int __attribute__((weak)) _open(const char * pathname, int flags, int mode)
 {
     (void) pathname;
     (void) flags;
     (void) mode;
-    return 0;
+    return -1;
 }
 
 /**************************************************************************

From 747713e617904b18f533f8bd64054b3f679354bf Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Mon, 24 Apr 2023 13:43:59 +0000
Subject: [PATCH 17/19] Fix CI

---
 src/platform/SyscallStubs.cpp                    | 1 -
 third_party/infineon/psoc6/syscalls_stubs.cpp    | 1 -
 third_party/ti_simplelink_sdk/syscalls_stubs.cpp | 1 -
 3 files changed, 3 deletions(-)

diff --git a/src/platform/SyscallStubs.cpp b/src/platform/SyscallStubs.cpp
index 12ccf8af801158..644e86f367556d 100644
--- a/src/platform/SyscallStubs.cpp
+++ b/src/platform/SyscallStubs.cpp
@@ -21,7 +21,6 @@
     (newlib/libc_nano)
 */
 
-#include <reent.h>
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/third_party/infineon/psoc6/syscalls_stubs.cpp b/third_party/infineon/psoc6/syscalls_stubs.cpp
index 12ccf8af801158..644e86f367556d 100644
--- a/third_party/infineon/psoc6/syscalls_stubs.cpp
+++ b/third_party/infineon/psoc6/syscalls_stubs.cpp
@@ -21,7 +21,6 @@
     (newlib/libc_nano)
 */
 
-#include <reent.h>
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/third_party/ti_simplelink_sdk/syscalls_stubs.cpp b/third_party/ti_simplelink_sdk/syscalls_stubs.cpp
index 12ccf8af801158..644e86f367556d 100644
--- a/third_party/ti_simplelink_sdk/syscalls_stubs.cpp
+++ b/third_party/ti_simplelink_sdk/syscalls_stubs.cpp
@@ -21,7 +21,6 @@
     (newlib/libc_nano)
 */
 
-#include <reent.h>
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdint.h>

From e0bddb90bf56b04ace9b8cc3baeab1852924bc06 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Mon, 24 Apr 2023 13:48:45 +0000
Subject: [PATCH 18/19] Restyle

---
 src/platform/BUILD.gn | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/platform/BUILD.gn b/src/platform/BUILD.gn
index 9f39a48bcdb784..b4876e13103364 100644
--- a/src/platform/BUILD.gn
+++ b/src/platform/BUILD.gn
@@ -489,5 +489,5 @@ if (chip_device_platform != "none") {
 }
 
 source_set("syscalls_stub") {
-  sources = ["SyscallStubs.cpp"]
-}
\ No newline at end of file
+  sources = [ "SyscallStubs.cpp" ]
+}

From 6bd98d5d575a192b943c28063f16e2d6b8d2ce39 Mon Sep 17 00:00:00 2001
From: Terence Hampson <thampson@google.com>
Date: Mon, 24 Apr 2023 16:38:47 +0000
Subject: [PATCH 19/19] Fix CI

---
 src/platform/SyscallStubs.cpp                    | 2 +-
 third_party/infineon/psoc6/syscalls_stubs.cpp    | 2 +-
 third_party/ti_simplelink_sdk/syscalls_stubs.cpp | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/platform/SyscallStubs.cpp b/src/platform/SyscallStubs.cpp
index 644e86f367556d..8ce83ddc3ecbeb 100644
--- a/src/platform/SyscallStubs.cpp
+++ b/src/platform/SyscallStubs.cpp
@@ -83,7 +83,7 @@ int __attribute__((weak)) _close(int file)
 void __attribute__((weak)) _exit(int status)
 {
     (void) status;
-    while (1)
+    while (true)
     {
     } /* Hang here forever... */
 }
diff --git a/third_party/infineon/psoc6/syscalls_stubs.cpp b/third_party/infineon/psoc6/syscalls_stubs.cpp
index 644e86f367556d..8ce83ddc3ecbeb 100644
--- a/third_party/infineon/psoc6/syscalls_stubs.cpp
+++ b/third_party/infineon/psoc6/syscalls_stubs.cpp
@@ -83,7 +83,7 @@ int __attribute__((weak)) _close(int file)
 void __attribute__((weak)) _exit(int status)
 {
     (void) status;
-    while (1)
+    while (true)
     {
     } /* Hang here forever... */
 }
diff --git a/third_party/ti_simplelink_sdk/syscalls_stubs.cpp b/third_party/ti_simplelink_sdk/syscalls_stubs.cpp
index 644e86f367556d..8ce83ddc3ecbeb 100644
--- a/third_party/ti_simplelink_sdk/syscalls_stubs.cpp
+++ b/third_party/ti_simplelink_sdk/syscalls_stubs.cpp
@@ -83,7 +83,7 @@ int __attribute__((weak)) _close(int file)
 void __attribute__((weak)) _exit(int status)
 {
     (void) status;
-    while (1)
+    while (true)
     {
     } /* Hang here forever... */
 }