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feat(runtime): add SIGSEGV signal handler to convert nil pointer dereference to recoverable panic

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- Add z_rt_default.go with signal handler for SIGSEGV on non-wasm platforms
- Convert segmentation faults from nil pointer access to Go panic
- Enable recover() to catch nil pointer dereference errors
- Use build tag (!wasm) to maintain wasm platform compatibility
- Remove commented-out signal handling code from z_rt.go

This aligns llgo's behavior with standard Go, where accessing nil pointer
fields triggers a recoverable panic instead of immediate program crash.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
luoliwoshang
2025-11-03 18:31:27 +08:00
parent 830e8e7058
commit 2363d28d57
3 changed files with 51 additions and 12 deletions
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3
_demo/go/export/libexport.h.want
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@@ -297,6 +297,9 @@ github_com_goplus_llgo_runtime_internal_clite_pthread_init(void) GO_SYMBOL_RENAM
void
github_com_goplus_llgo_runtime_internal_clite_pthread_sync_init(void) GO_SYMBOL_RENAME("github.com/goplus/llgo/runtime/internal/clite/pthread/sync.init")
void
github_com_goplus_llgo_runtime_internal_clite_signal_init(void) GO_SYMBOL_RENAME("github.com/goplus/llgo/runtime/internal/clite/signal.init")
void
github_com_goplus_llgo_runtime_internal_runtime_goarch_init(void) GO_SYMBOL_RENAME("github.com/goplus/llgo/runtime/internal/runtime/goarch.init")