mirror of
https://github.com/chai2010/advanced-go-programming-book.git
synced 2025-05-24 12:32:21 +00:00
77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
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#line 1 "cgo-builtin-prolog"
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#include <stddef.h> /* for ptrdiff_t and size_t below */
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/* Define intgo when compiling with GCC. */
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typedef ptrdiff_t intgo;
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typedef struct { const char *p; intgo n; } _GoString_;
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typedef struct { char *p; intgo n; intgo c; } _GoBytes_;
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_GoString_ GoString(char *p);
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_GoString_ GoStringN(char *p, int l);
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_GoBytes_ GoBytes(void *p, int n);
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char *CString(_GoString_);
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void *CBytes(_GoBytes_);
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void *_CMalloc(size_t);
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__attribute__ ((unused))
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static size_t _GoStringLen(_GoString_ s) { return s.n; }
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__attribute__ ((unused))
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static const char *_GoStringPtr(_GoString_ s) { return s.p; }
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#line 6 "/Users/chai/go/src/github.com/chai2010/advanced-go-programming-book/examples/ch2-05-internal/02-go-call-c-func/main.go"
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int sum(int a, int b) { return a+b; }
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#line 1 "cgo-generated-wrapper"
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#line 1 "cgo-gcc-prolog"
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/*
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If x and y are not equal, the type will be invalid
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(have a negative array count) and an inscrutable error will come
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out of the compiler and hopefully mention "name".
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*/
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#define __cgo_compile_assert_eq(x, y, name) typedef char name[(x-y)*(x-y)*-2+1];
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/* Check at compile time that the sizes we use match our expectations. */
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#define __cgo_size_assert(t, n) __cgo_compile_assert_eq(sizeof(t), n, _cgo_sizeof_##t##_is_not_##n)
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__cgo_size_assert(char, 1)
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__cgo_size_assert(short, 2)
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__cgo_size_assert(int, 4)
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typedef long long __cgo_long_long;
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__cgo_size_assert(__cgo_long_long, 8)
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__cgo_size_assert(float, 4)
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__cgo_size_assert(double, 8)
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extern char* _cgo_topofstack(void);
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#include <errno.h>
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#include <string.h>
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#define CGO_NO_SANITIZE_THREAD
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#define _cgo_tsan_acquire()
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#define _cgo_tsan_release()
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CGO_NO_SANITIZE_THREAD
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void
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_cgo_506f45f9fa85_Cfunc_sum(void *v)
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{
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struct {
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int p0;
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int p1;
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int r;
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char __pad12[4];
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} __attribute__((__packed__)) *a = v;
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char *stktop = _cgo_topofstack();
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__typeof__(a->r) r;
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_cgo_tsan_acquire();
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r = sum(a->p0, a->p1);
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_cgo_tsan_release();
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a = (void*)((char*)a + (_cgo_topofstack() - stktop));
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a->r = r;
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}
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