diff options
| -rw-r--r-- | absl/log/internal/globals.cc | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/absl/log/internal/globals.cc b/absl/log/internal/globals.cc index 863b047f..9ba997d5 100644 --- a/absl/log/internal/globals.cc +++ b/absl/log/internal/globals.cc @@ -16,6 +16,9 @@ #include <atomic> #include <cstdio> +#if defined(__EMSCRIPTEN__) +#include <emscripten/console.h> +#endif #include "absl/base/attributes.h" #include "absl/base/config.h" @@ -55,9 +58,21 @@ void SetInitialized() { } void WriteToStderr(absl::string_view message, absl::LogSeverity severity) { +#if defined(__EMSCRIPTEN__) + // In WebAssembly, bypass filesystem emulation via fwrite. + // TODO(b/282811932): Avoid this copy if these emscripten functions can + // be updated to accept size directly. + std::string null_terminated_message(message); + if (!null_terminated_message.empty() && + null_terminated_message.back() == '\n') { + null_terminated_message.pop_back(); + } + _emscripten_err(null_terminated_message.c_str()); +#else // Avoid using std::cerr from this module since we may get called during // exit code, and cerr may be partially or fully destroyed by then. std::fwrite(message.data(), message.size(), 1, stderr); +#endif #if defined(_WIN64) || defined(_WIN32) || defined(_WIN16) // C99 requires stderr to not be fully-buffered by default (7.19.3.7), but |