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Fix more emscripten compiler errors (#7895)

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I ran the CMake configure with:
```bash
emcmake cmake -B build-wasm -S . \
  -DCMAKE_BUILD_TYPE=Release \
  -DBUILD_SHARED_LIBS=OFF \
  -DWITH_SIMULATION_MODULES=OFF \
  -DWITH_PROTOBUF=OFF \
  -DWITH_GUI=OFF \
  -DWITH_CSCORE=OFF
```

* Turned off simulation modules because they require shared libraries
* Turned off GUI because glfw requires libssh
* Turned off cscore because it requires OpenCV

I still get the following compiler errors:

```
/home/tav/frc/wpilib/allwpilib/wpinet/src/main/native/thirdparty/libuv/src/unix/linux.cpp:43:10: fatal error: 'sys/epoll.h' file not found
   43 | #include <sys/epoll.h>
      |          ^~~~~~~~~~~~~
```
```
/home/tav/frc/wpilib/allwpilib/wpinet/src/main/native/thirdparty/libuv/src/unix/stream.cpp:991:56: error: comparison of integers of different signs: 'unsigned long' and 'long' [-Werror,-Wsign-compare]
  991 |   for (cmsg = CMSG_FIRSTHDR(msg); cmsg != NULL; cmsg = CMSG_NXTHDR(msg, cmsg)) {
      |                                                        ^~~~~~~~~~~~~~~~~~~~~~
/home/tav/.cache/emscripten/sysroot/include/sys/socket.h:358:44: note: expanded from macro 'CMSG_NXTHDR'
  358 |         __CMSG_LEN(cmsg) + sizeof(struct cmsghdr) >= __MHDR_END(mhdr) - (unsigned char *)(cmsg) \
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
```
/home/tav/frc/wpilib/allwpilib/wpinet/src/main/native/thirdparty/libuv/src/unix/core.cpp:748:56: error: comparison of integers of different signs: 'unsigned long' and 'long' [-Werror,-Wsign-compare]
  748 |   for (cmsg = CMSG_FIRSTHDR(msg); cmsg != NULL; cmsg = CMSG_NXTHDR(msg, cmsg))
      |                                                        ^~~~~~~~~~~~~~~~~~~~~~
/home/tav/.cache/emscripten/sysroot/include/sys/socket.h:358:44: note: expanded from macro 'CMSG_NXTHDR'
  358 |         __CMSG_LEN(cmsg) + sizeof(struct cmsghdr) >= __MHDR_END(mhdr) - (unsigned char *)(cmsg) \
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
This commit is contained in:
Tyler Veness
2025-04-25 21:56:26 -07:00
committed by GitHub
parent 90ee11a9e0
commit 92010c175f
13 changed files with 121 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
upstream_utils/debugging_patches/0005-Add-emscripten-shim.patch Normal file
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@@ -0,0 +1,34 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tyler Veness <calcmogul@gmail.com>
Date: Tue, 8 Apr 2025 15:28:38 -0700
Subject: [PATCH 5/5] Add emscripten shim
---
src/emscripten.cxx | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
create mode 100644 src/emscripten.cxx
diff --git a/src/emscripten.cxx b/src/emscripten.cxx
new file mode 100644
index 0000000000000000000000000000000000000000..16924894cc0c6085b27b33e6b9f2a6e6d582d116
--- /dev/null
+++ b/src/emscripten.cxx
@@ -0,0 +1,18 @@
+#if defined(__EMSCRIPTEN__)
+
+# include <debugging.hpp>
+
+# include <atomic>
+# include <fstream>
+# include <string>
+
+namespace wpi {
+
+bool is_debugger_present() noexcept
+{
+ return false;
+}
+
+} // namespace wpi
+
+#endif