//go:build gc

#include "_cgo_export.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>

/* Test calling panic from C.  This is what SWIG does.  */

extern void crosscall2(void (*fn)(void *, int), void *, int);
extern void _cgo_panic(void *, int);
extern void _cgo_allocate(void *, int);

void
callPanic(void)
{
	struct { const char *p; } a;
	a.p = "panic from C";

					readmaker := readMakers[i]
					bufreader := bufreaders[j]
					bufsize := bufsizes[k]
					read := readmaker.fn(strings.NewReader(text))
					buf := NewReaderSize(read, bufsize)
					s := bufreader.fn(buf)
					if s != text {
						t.Errorf("reader=%s fn=%s bufsize=%d want=%q got=%q",
							readmaker.name, bufreader.name, bufsize, text, s)
					}
				}
			}
		}
	}
}

Instead, the build process generates an object file using dynamic
linkage to the desired libraries. The main function is provided by
_cgo_main.c:

	int main() { return 0; }
	void crosscall2(void(*fn)(void*), void *a, int c, uintptr_t ctxt) { }
	uintptr_t _cgo_wait_runtime_init_done(void) { return 0; }
	void _cgo_release_context(uintptr_t ctxt) { }
	char* _cgo_topofstack(void) { return (char*)0; }

	vs := []struct {
		call           string
		fn             func() error
		filter, expect string
	}{
		{call: "Setegid(1)", fn: func() error { return syscall.Setegid(1) }, filter: "Gid:", expect: "\t0\t1\t0\t1"},
		{call: "Setegid(0)", fn: func() error { return syscall.Setegid(0) }, filter: "Gid:", expect: "\t0\t0\t0\t0"},

pkg testing, method (*F) Skipped() bool
pkg testing, method (*F) TempDir() string
pkg testing, type F struct
pkg testing, type InternalFuzzTarget struct
pkg testing, type InternalFuzzTarget struct, Fn func(*F)
pkg testing, type InternalFuzzTarget struct, Name string
pkg text/template/parse, const NodeBreak = 21
pkg text/template/parse, const NodeBreak NodeType
pkg text/template/parse, const NodeContinue = 22

			fmt.Fprintf(stdout, "!reverse translation not implemented\n")
			continue
		}
		pc, _ := strconv.ParseUint(strings.TrimPrefix(p, "0x"), 16, 64)
		file, line, fn := tab.PCToLine(pc)
		name := "?"
		if fn != nil {
			name = fn.Name
		} else {
			file = "?"
			line = 0
		}
		fmt.Fprintf(stdout, "%s\n%s:%d\n", name, file, line)
	}
	stdout.Flush()

		fields.List = nil
		for _, f := range t.Fields.List {
			ft := p.rewriteUnsafe(f.Type)
			if ft == f.Type {
				fields.List = append(fields.List, f)
			} else {
				fn := *f
				fn.Type = ft
				fields.List = append(fields.List, &fn)
				changed = true
			}
		}
		if changed {
			r := *t
			r.Fields = &fields
			return &r
		}
	case *ast.StarExpr: // Pointer type.