oh yes, I am using gccgo. I configured gccgo from source. Below is the go
version output:
*go version go1.10.3 gccgo (GCC) 8.2.1 20180814 solaris/sparc *
Following is the output of what is
-bash-3.2$ go build -x sol10.go
WORK=/tmp/go-build151901300
mkdir -p $WORK/b001/
cd $WORK
/usr/gnu/bin/gccgo -fsplit-stack -c -x c - || true
cd /export/home/amandeep
CGO_LDFLAGS='"-g" "-O2"'
/usr/gnu/libexec/gcc/sparc-sun-solaris2.10/8.2.1/cgo -objdir $WORK/b001/
-importpath command-line-arguments -gccgo -- -I $WORK/b001/ -g -O2
./sol10.go
# command-line-arguments
./sol10.go:15:5: call of non-function C.testc
As suggested, next I ran with -debug-gcc option:
-bash-3.2$ CGO_LDFLAGS='"-g" "-O2"'
/usr/gnu/libexec/gcc/sparc-sun-solaris2.10/8.2.1/cgo -debug-gcc -objdir
$WORK/b001/ -importpath command-line-arguments -gccgo -- -I $WORK/b001/ -g
-O2 ./sol10.go
$ gcc -E -dM -xc -I /b001/ -g -O2 - <<EOF
#line 1 "cgo-builtin-prolog"
#include <stddef.h> /* for ptrdiff_t and size_t below */
/* Define intgo when compiling with GCC. */
typedef ptrdiff_t intgo;
typedef struct { const char *p; intgo n; } _GoString_;
typedef struct { char *p; intgo n; intgo c; } _GoBytes_;
_GoString_ GoString(char *p);
_GoString_ GoStringN(char *p, int l);
_GoBytes_ GoBytes(void *p, int n);
char *CString(_GoString_);
void *CBytes(_GoBytes_);
void *_CMalloc(size_t);
__attribute__ ((unused))
static size_t _GoStringLen(_GoString_ s) { return s.n; }
__attribute__ ((unused))
static const char *_GoStringPtr(_GoString_ s) { return s.p; }
#line 3 "/export/home/amandeep/sol10.go"
#include <stdio.h>
void testc() {
printf("Hello cgo");
}
#line 1 "cgo-generated-wrapper"
EOF
#define __DBL_MIN_EXP__ (-1021)
#define __FLT32X_MAX_EXP__ 1024
#define _SYS_FEATURE_TESTS_H
#define __UINT_LEAST16_MAX__ 0xffff
#define __ATOMIC_ACQUIRE 2
#define __FLT128_MAX_10_EXP__ 4932
#define __sun_attr___packed__ __attribute__((__packed__))
#define __FLT_MIN__ 1.17549435082228750796873653722224568e-38F
#define __GCC_IEC_559_COMPLEX 2
#define __UINT_LEAST8_TYPE__ unsigned char
#define _T_WCHAR_
#define __INTMAX_C(c) c ## LL
#define __CHAR_BIT__ 8
#define __UINT8_MAX__ 0xff
#define __sun_attr___VPRINTFLIKE__(__n) __attribute__((__format__(printf,
__n, 0)))
#define _FILEDEFED
#define __WINT_MAX__ 0x7fffffffL
#define __FLT32_MIN_EXP__ (-125)
#define stderr (&__iob[2])
#define __ORDER_LITTLE_ENDIAN__ 1234
#define __SIZE_MAX__ 0xffffffffU
#define __WCHAR_MAX__ 0x7fffffffL
#define _LONG_LONG_ALIGNMENT 8
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1
#define __DBL_DENORM_MIN__
((double)4.94065645841246544176568792868221372e-324L)
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1
#define __GCC_ATOMIC_CHAR_LOCK_FREE 2
#define _OBP
#define __GCC_IEC_559 2
#define __FLT32X_DECIMAL_DIG__ 17
#define _IOFBF 0000
#define __sun_attr___pure__ __attribute__((__pure__))
#define __FLT_EVAL_METHOD__ 0
#define __unix__ 1
#define __FLT64_DECIMAL_DIG__ 17
#define _XOPEN_VERSION 3
#define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2
#define __UINT_FAST64_MAX__ 0xffffffffffffffffULL
#define __SIG_ATOMIC_TYPE__ int
#define __DBL_MIN_10_EXP__ (-307)
#define __FINITE_MATH_ONLY__ 0
#define L_cuserid 9
#define ___sun_attr_inner(__a) __sun_attr_ ##__a
#define __sun_attr___noreturn__ __attribute__((__noreturn__))
#define __GNUC_PATCHLEVEL__ 1
#define __FLT32_HAS_DENORM__ 1
#define __UINT_FAST8_MAX__ 0xff
#define __has_include(STR) __has_include__(STR)
#define __size_t
#define __DEC64_MAX_EXP__ 385
#define _WCHAR_T_DEFINED
#define __INT8_C(c) c
#define __INT_LEAST8_WIDTH__ 8
#define sparc 1
#define __UINT_LEAST64_MAX__ 0xffffffffffffffffULL
#define __sun_attr__(__a) ___sun_attr_inner __a
#define __SHRT_MAX__ 0x7fff
#define __LDBL_MAX__ 1.18973149535723176508575932662800702e+4932L
#define __FLT64X_MAX_10_EXP__ 4932
#define __UINT_LEAST8_MAX__ 0xff
#define __GCC_ATOMIC_BOOL_LOCK_FREE 2
#define __FLT128_DENORM_MIN__
6.47517511943802511092443895822764655e-4966F128
#define __UINTMAX_TYPE__ long long unsigned int
#define __DEC32_EPSILON__ 1E-6DF
#define __FLT_EVAL_METHOD_TS_18661_3__ 0
#define __OPTIMIZE__ 1
#define putchar(x) putc((x), stdout)
#define __unix 1
#define __UINT32_MAX__ 0xffffffffU
#define __SIZE_T
#define __LDBL_MAX_EXP__ 16384
#define __FLT128_MIN_EXP__ (-16381)
#define __WINT_MIN__ (-__WINT_MAX__ - 1)
#define __sun 1
#define __FLT128_MIN_10_EXP__ (-4931)
#define __INT_LEAST16_WIDTH__ 16
#define _SIZE_T_DEFINED_
#define __SCHAR_MAX__ 0x7f
#define _LONG_ALIGNMENT 4
#define __FLT128_MANT_DIG__ 113
#define __WCHAR_MIN__ (-__WCHAR_MAX__ - 1)
#define __INT64_C(c) c ## LL
#define _INT_ALIGNMENT 4
#define __DBL_DIG__ 15
#define __GCC_ATOMIC_POINTER_LOCK_FREE 2
#define __FLT64X_MANT_DIG__ 113
#define _SYS_CCOMPILE_H
#define getchar() getc(stdin)
#define __SIZEOF_INT__ 4
#define __SIZEOF_POINTER__ 4
#define clearerr(p) ((void)((p)->_flag &= ~(_IOERR | _IOEOF)))
#define _DOUBLE_COMPLEX_ALIGNMENT 8
#define __USER_LABEL_PREFIX__
#define __FLT64X_EPSILON__ 1.92592994438723585305597794258492732e-34F64x
#define __STDC_HOSTED__ 1
#define __LDBL_HAS_INFINITY__ 1
#define _BSD_SIZE_T_DEFINED_
#define __FLT32_DIG__ 6
#define __FLT_EPSILON__ 1.19209289550781250000000000000000000e-7F
#define __SHRT_WIDTH__ 16
#define TMP_MAX 17576
#define __LDBL_MIN__ 3.36210314311209350626267781732175260e-4932L
#define __STDC_UTF_16__ 1
#define __DEC32_MAX__ 9.999999E96DF
#define _WCHAR_T_
#define __FLT64X_DENORM_MIN__
6.47517511943802511092443895822764655e-4966F64x
#define _STDDEF_H
#define __FLT32X_HAS_INFINITY__ 1
#define __INT32_MAX__ 0x7fffffff
#define __INT_WIDTH__ 32
#define __SIZEOF_LONG__ 4
#define _IONBF 0004
#define __UINT16_C(c) c
#define __PTRDIFF_WIDTH__ 32
#define __DECIMAL_DIG__ 36
#define __FLT64_EPSILON__ 2.22044604925031308084726333618164062e-16F64
#define __INTMAX_WIDTH__ 64
#define _LARGEFILE_SOURCE 1
#define __has_include_next(STR) __has_include_next__(STR)
#define __FLT64X_MIN_10_EXP__ (-4931)
#define __LDBL_HAS_QUIET_NAN__ 1
#define __FLT64_MANT_DIG__ 53
#define __va_ptr_base void
#define L_tmpnam 25
#define ___int_wchar_t_h
#define _T_PTRDIFF
#define __GNUC__ 8
#define __sun_attr___KVPRINTFLIKE__(__n) __attribute__((__format__(cmn_err,
__n, 0)))
#define offsetof(TYPE,MEMBER) __builtin_offsetof (TYPE, MEMBER)
#define L_ctermid 9
#define __FLT_HAS_DENORM__ 1
#define __SIZEOF_LONG_DOUBLE__ 16
#define SEEK_CUR 1
#define __BIGGEST_ALIGNMENT__ 8
#define __FLT64_MAX_10_EXP__ 308
#define __sun_attr___KPRINTFLIKE__(__n) __attribute__((__format__(cmn_err,
__n, (__n)+1)))
#define __va_void(expr) ((void)expr)
#define _STDIO_H
#define __DBL_MAX__ ((double)1.79769313486231570814527423731704357e+308L)
#define __INT_FAST32_MAX__ 0x7fffffff
#define __DBL_HAS_INFINITY__ 1
#define stdin (&__iob[0])
#define __SVR4 1
#define __DEC32_MIN_EXP__ (-94)
#define __INTPTR_WIDTH__ 32
#define _LONG_LONG_HTOL
#define __FLT32X_HAS_DENORM__ 1
#define __INT_FAST16_TYPE__ int
#define _SIZE_T_DEFINED
#define _SUNOS_VTOC_8
#define _WCHAR_T_DEFINED_
#define _NFILE 20
#define __LDBL_HAS_DENORM__ 1
#define _STDIO_IMPL_H
#define __va_alist_type int
#define __FLT128_HAS_INFINITY__ 1
#define __DEC128_MAX__ 9.999999999999999999999999999999999E6144DL
#define __INT_LEAST32_MAX__ 0x7fffffff
#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
#define __DEC32_MIN__ 1E-95DF
#define __DBL_MAX_EXP__ 1024
#define __WCHAR_WIDTH__ 32
#define __FLT32_MAX__ 3.40282346638528859811704183484516925e+38F32
#define __DEC128_EPSILON__ 1E-33DL
#define __PTRDIFF_MAX__ 0x7fffffff
#define _STDIO_TAG_H
#define _PTRDIFF_T_DECLARED
#define __FLT32_HAS_QUIET_NAN__ 1
#define _T_WCHAR
#define __LONG_LONG_MAX__ 0x7fffffffffffffffLL
#define __SIZEOF_SIZE_T__ 4
#define _WCHAR_T
#define __KVPRINTFLIKE(__n) __sun_attr__((__KVPRINTFLIKE__(__n)))
#define __sparc__ 1
#define __FLT64X_MIN_EXP__ (-16381)
#define __SIZEOF_WINT_T__ 4
#define __LONG_LONG_WIDTH__ 64
#define _GCC_WCHAR_T
#define __FLT32_MAX_EXP__ 128
#define _PTRDIFF_T
#define __GXX_ABI_VERSION 1013
#define __sun_attr___PRINTFLIKE__(__n) __attribute__((__format__(printf,
__n, (__n)+1)))
#define __FLT_MIN_EXP__ (-125)
#define __PTRDIFF_T
#define __FLT64X_HAS_QUIET_NAN__ 1
#define __INT_FAST64_TYPE__ long long int
#define _LONGLONG_TYPE
#define __FILE_TAG __FILE
#define ferror(p) ((p)->_flag & _IOERR)
#define _ANSI_STDDEF_H
#define __FLT64_DENORM_MIN__ 4.94065645841246544176568792868221372e-324F64
#define __DBL_MIN__ ((double)2.22507385850720138309023271733240406e-308L)
#define _ALIGNMENT_REQUIRED 1
#define __FLT32X_EPSILON__ 2.22044604925031308084726333618164062e-16F32x
#define _ISO_STDIO_ISO_H
#define __FLT64_MIN_EXP__ (-1021)
#define _RESTRICT_KYWD restrict
#define _SYS_ISA_DEFS_H
#define __FLT64_MIN_10_EXP__ (-307)
#define _IOREAD 0001
#define __FLT64X_DECIMAL_DIG__ 36
#define __DEC128_MIN__ 1E-6143DL
#define __REGISTER_PREFIX__
#define __UINT16_MAX__ 0xffff
#define _LONG_DOUBLE_ALIGNMENT 8
#define __DBL_HAS_DENORM__ 1
#define _IOMYBUF 0010
#define __FLT32_MIN__ 1.17549435082228750796873653722224568e-38F32
#define __UINT8_TYPE__ unsigned char
#define __sparcv8 1
#define __sun_attr___const__ __attribute__((__const__))
#define __FLT_MANT_DIG__ 24
#define __LDBL_DECIMAL_DIG__ 36
#define __VERSION__ "8.2.1 20180814"
#define __UINT64_C(c) c ## ULL
#define _PTRDIFF_T_
#define __INT_WCHAR_T_H
#define _BIT_FIELDS_HTOL
#define __GCC_ATOMIC_INT_LOCK_FREE 2
#define _NO_FDISK_PRESENT
#define _T_PTRDIFF_
#define __FLT128_MAX_EXP__ 16384
#define __FLT32_MANT_DIG__ 24
#define _SYS_SIZE_T_H
#define _OFF_T
#define __FLOAT_WORD_ORDER__ __ORDER_BIG_ENDIAN__
#define __SIZE_T__
#define _CHAR_ALIGNMENT 1
#define __FLT128_HAS_DENORM__ 1
#define __sparc 1
#define __FLT128_DIG__ 33
#define __SCHAR_WIDTH__ 8
#define __INT32_C(c) c
#define __DEC64_EPSILON__ 1E-15DD
#define __ORDER_PDP_ENDIAN__ 3412
#define __DEC128_MIN_EXP__ (-6142)
#define __FLT32_MAX_10_EXP__ 38
#define sun 1
#define __INT_FAST32_TYPE__ int
#define __UINT_LEAST16_TYPE__ short unsigned int
#define __FLT64X_HAS_INFINITY__ 1
#define unix 1
#define __INT16_MAX__ 0x7fff
#define _BSD_SIZE_T_
#define __SIZE_TYPE__ unsigned int
#define __UINT64_MAX__ 0xffffffffffffffffULL
#define _SIZE_T_DECLARED
#define _ISO_STDIO_C99_H
#define _FLOAT_ALIGNMENT 4
#define __FLT64X_DIG__ 33
#define __INT8_TYPE__ char
#define _IORW 0200
#define __ELF__ 1
#define _FLOAT_COMPLEX_ALIGNMENT 4
#define __FLT_RADIX__ 2
#define __INT_LEAST16_TYPE__ short int
#define __LDBL_EPSILON__ 1.92592994438723585305597794258492732e-34L
#define __UINTMAX_C(c) c ## ULL
#define __SIG_ATOMIC_MAX__ 0x7fffffff
#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2
#define _BOOL_ALIGNMENT 1
#define __SIZEOF_PTRDIFF_T__ 4
#define SEEK_SET 0
#define _HAVE_TEM_FIRMWARE
#define _SYS_VA_LIST_H
#define _STDC_C99
#define __FLT32X_MANT_DIG__ 53
#define _SIZE_T_
#define __FLT32X_MIN_EXP__ (-1021)
#define __DEC32_SUBNORMAL_MIN__ 0.000001E-95DF
#define _WCHAR_T_H
#define __INT_FAST16_MAX__ 0x7fffffff
#define __FLT64_DIG__ 15
#define __UINT_FAST32_MAX__ 0xffffffffU
#define __UINT_LEAST64_TYPE__ long long unsigned int
#define __FLT_HAS_QUIET_NAN__ 1
#define _MAX_ALIGNMENT 8
#define __FLT_MAX_10_EXP__ 38
#define _POINTER_ALIGNMENT 4
#define __LONG_MAX__ 0x7fffffffL
#define __WCHAR_T__
#define __FLT64X_HAS_DENORM__ 1
#define __DEC128_SUBNORMAL_MIN__ 0.000000000000000000000000000000001E-6143DL
#define __FLT_HAS_INFINITY__ 1
#define _BSD_PTRDIFF_T_
#define _ILP32
#define __UINT_FAST16_TYPE__ unsigned int
#define __DEC64_MAX__ 9.999999999999999E384DD
#define __INT_FAST32_WIDTH__ 32
#define NULL ((void *)0)
#define __CHAR16_TYPE__ short unsigned int
#define __PRAGMA_REDEFINE_EXTNAME 1
#define __SIZE_WIDTH__ 32
#define __INT_LEAST16_MAX__ 0x7fff
#define __DEC64_MANT_DIG__ 16
#define __INT64_MAX__ 0x7fffffffffffffffLL
#define __UINT_LEAST32_MAX__ 0xffffffffU
#define __FLT32_DENORM_MIN__ 1.40129846432481707092372958328991613e-45F32
#define __GCC_ATOMIC_LONG_LOCK_FREE 2
#define __SIG_ATOMIC_WIDTH__ 32
#define __INT_LEAST64_TYPE__ long long int
#define __INT16_TYPE__ short int
#define __INT_LEAST8_TYPE__ char
#define __STDC_VERSION__ 201710L
#define __DEC32_MAX_EXP__ 97
#define _BIG_ENDIAN
#define __INT_FAST8_MAX__ 0x7f
#define __FLT128_MAX__ 1.18973149535723176508575932662800702e+4932F128
#define __INTPTR_MAX__ 0x7fffffff
#define __FLT64_HAS_QUIET_NAN__ 1
#define _IOLBF 0100
#define __FLT32_MIN_10_EXP__ (-37)
#define __FLT32X_DIG__ 15
#define __LDBL_MANT_DIG__ 113
#define __DBL_HAS_QUIET_NAN__ 1
#define __FLT64_HAS_INFINITY__ 1
#define __FLT64X_MAX__ 1.18973149535723176508575932662800702e+4932F64x
#define __GNUC_VA_LIST
#define _GCC_MAX_ALIGN_T
#define __SIG_ATOMIC_MIN__ (-__SIG_ATOMIC_MAX__ - 1)
#define _DOUBLE_ALIGNMENT 8
#define _SHORT_ALIGNMENT 2
#define FILENAME_MAX 1024
#define __VPRINTFLIKE(__n) __sun_attr__((__VPRINTFLIKE__(__n)))
#define __INTPTR_TYPE__ int
#define __UINT16_TYPE__ short unsigned int
#define __WCHAR_TYPE__ long int
#define __SIZEOF_FLOAT__ 4
#define __UINTPTR_MAX__ 0xffffffffU
#define getc(p) (--(p)->_cnt < 0 ? __filbuf(p) : (int)*(p)->_ptr++)
#define __INT_FAST64_WIDTH__ 64
#define __DEC64_MIN_EXP__ (-382)
#define putc(x,p) (--(p)->_cnt < 0 ? __flsbuf((x), (p)) :
(int)(*(p)->_ptr++ = (unsigned char) (x)))
#define __FLT32_DECIMAL_DIG__ 9
#define __INT_FAST64_MAX__ 0x7fffffffffffffffLL
#define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 255
#define BUFSIZ 1024
#define __FLT_DIG__ 6
#define __FLT32_HAS_INFINITY__ 1
#define __FLT64X_MAX_EXP__ 16384
#define _IEEE_754
#define _WCHAR_T_DECLARED
#define __UINT_FAST64_TYPE__ long long unsigned int
#define __INT_MAX__ 0x7fffffff
#define _DTRACE_VERSION 1
#define _T_SIZE_
#define feof(p) ((p)->_flag & _IOEOF)
#define __INT64_TYPE__ long long int
#define __FLT_MAX_EXP__ 128
#define __DBL_MANT_DIG__ 53
#define ___int_size_t_h
#define __INT_LEAST64_MAX__ 0x7fffffffffffffffLL
#define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2
#define _IOWRT 0002
#define __DEC64_MIN__ 1E-383DD
#define __WINT_TYPE__ long int
#define __UINT_LEAST32_TYPE__ unsigned int
#define __SIZEOF_SHORT__ 2
#define __LDBL_MIN_EXP__ (-16381)
#define __FLT64_MAX__ 1.79769313486231570814527423731704357e+308F64
#define stdout (&__iob[1])
#define __WINT_WIDTH__ 32
#define EOF (-1)
#define __INT_LEAST8_MAX__ 0x7f
#define __KPRINTFLIKE(__n) __sun_attr__((__KPRINTFLIKE__(__n)))
#define __FLT32X_MAX_10_EXP__ 308
#define _CHAR_IS_SIGNED
#define __LDBL_MAX_10_EXP__ 4932
#define __ATOMIC_RELAXED 0
#define __DBL_EPSILON__ ((double)2.22044604925031308084726333618164062e-16L)
#define __FLT128_MIN__ 3.36210314311209350626267781732175260e-4932F128
#define _SIZET_
#define __UINT8_C(c) c
#define __FLT64_MAX_EXP__ 1024
#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 8
#define __INT_LEAST32_TYPE__ int
#define __wchar_t__
#define __sun__ 1
#define SEEK_END 2
#define __SIZEOF_WCHAR_T__ 4
#define __UINT64_TYPE__ long long unsigned int
#define _LARGEFILE64_SOURCE 1
#define _STDDEF_H_
#define __FLT128_HAS_QUIET_NAN__ 1
#define __INT_FAST8_TYPE__ char
#define _IOEOF 0020
#define __FLT64X_MIN__ 3.36210314311209350626267781732175260e-4932F64x
#define __GNUC_STDC_INLINE__ 1
#define P_tmpdir "/var/tmp/"
#define __FLT64_HAS_DENORM__ 1
#define __FLT32_EPSILON__ 1.19209289550781250000000000000000000e-7F32
#define __DBL_DECIMAL_DIG__ 17
#define __STDC_UTF_32__ 1
#define _IOERR 0040
#define __INT_FAST8_WIDTH__ 8
#define __DEC_EVAL_METHOD__ 2
#define _SIZE_T
#define __FLT32X_MAX__ 1.79769313486231570814527423731704357e+308F32x
#define FOPEN_MAX _NFILE
#define __PRINTFLIKE(__n) __sun_attr__((__PRINTFLIKE__(__n)))
#define _STACK_GROWS_DOWNWARD
#define _FILE_OFFSET_BITS 32
#define __svr4__ 1
#define _GCC_SIZE_T
#define __ORDER_BIG_ENDIAN__ 4321
#define __UINT32_C(c) c ## U
#define __INTMAX_MAX__ 0x7fffffffffffffffLL
#define __BYTE_ORDER__ __ORDER_BIG_ENDIAN__
#define __size_t__
#define __FLT_DENORM_MIN__ 1.40129846432481707092372958328991613e-45F
#define __INT8_MAX__ 0x7f
#define __LONG_WIDTH__ 32
#define __UINT_FAST32_TYPE__ unsigned int
#define __CHAR32_TYPE__ unsigned int
#define __FLT_MAX__ 3.40282346638528859811704183484516925e+38F
#define __NORETURN __sun_attr__((__noreturn__))
#define __INT32_TYPE__ int
#define _DMA_USES_VIRTADDR
#define __SIZEOF_DOUBLE__ 8
#define __FLT_MIN_10_EXP__ (-37)
#define _ISO_CPP_14882_1998
#define __FLT64_MIN__ 2.22507385850720138309023271733240406e-308F64
#define __INT_LEAST32_WIDTH__ 32
#define __INTMAX_TYPE__ long long int
#define __DEC128_MAX_EXP__ 6145
#define _T_SIZE
#define _ISO_C_9899_1999
#define __FLT32X_HAS_QUIET_NAN__ 1
#define __ATOMIC_CONSUME 1
#define __GNUC_MINOR__ 2
#define __INT_FAST16_WIDTH__ 32
#define __UINTMAX_MAX__ 0xffffffffffffffffULL
#define __DEC32_MANT_DIG__ 7
#define __FLT32X_DENORM_MIN__ 4.94065645841246544176568792868221372e-324F32x
#define __DBL_MAX_10_EXP__ 308
#define __LDBL_DENORM_MIN__ 6.47517511943802511092443895822764655e-4966L
#define __INT16_C(c) c
#define __PTRDIFF_TYPE__ int
#define __CONST __sun_attr__((__const__))
#define __GNUC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 +
__GNUC_PATCHLEVEL__)
#define __ATOMIC_SEQ_CST 5
#define __UINT32_TYPE__ unsigned int
#define __FLT32X_MIN_10_EXP__ (-307)
#define __UINTPTR_TYPE__ unsigned int
#define __DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD
#define __DEC128_MANT_DIG__ 34
#define __LDBL_MIN_10_EXP__ (-4931)
#define __FLT128_EPSILON__ 1.92592994438723585305597794258492732e-34F128
#define __SIZEOF_LONG_LONG__ 8
#define _GCC_PTRDIFF_T
#define _SBFSIZ 8
#define __FLT128_DECIMAL_DIG__ 36
#define __GCC_ATOMIC_LLONG_LOCK_FREE 2
#define __FLT32X_MIN__ 2.22507385850720138309023271733240406e-308F32x
#define __LDBL_DIG__ 33
#define __FLT_DECIMAL_DIG__ 9
#define __UINT_FAST16_MAX__ 0xffffffffU
#define ___int_ptrdiff_t_h
#define __GCC_ATOMIC_SHORT_LOCK_FREE 2
#define __PURE __sun_attr__((__pure__))
#define __INT_LEAST64_WIDTH__ 64
#define __UINT_FAST8_TYPE__ unsigned char
#define __ATOMIC_ACQ_REL 4
#define __WCHAR_T
#define __ATOMIC_RELEASE 3
$ gcc -w -Wno-error -o/b001//_cgo_.o -gdwarf-2 -c -xc -I /b001/ -g - <<EOF
#line 1 "cgo-builtin-prolog"
#include <stddef.h> /* for ptrdiff_t and size_t below */
/* Define intgo when compiling with GCC. */
typedef ptrdiff_t intgo;
typedef struct { const char *p; intgo n; } _GoString_;
typedef struct { char *p; intgo n; intgo c; } _GoBytes_;
_GoString_ GoString(char *p);
_GoString_ GoStringN(char *p, int l);
_GoBytes_ GoBytes(void *p, int n);
char *CString(_GoString_);
void *CBytes(_GoBytes_);
void *_CMalloc(size_t);
__attribute__ ((unused))
static size_t _GoStringLen(_GoString_ s) { return s.n; }
__attribute__ ((unused))
static const char *_GoStringPtr(_GoString_ s) { return s.p; }
#line 3 "/export/home/amandeep/sol10.go"
#include <stdio.h>
void testc() {
printf("Hello cgo");
}
#line 1 "cgo-generated-wrapper"
#line 1 "not-declared"
void __cgo_f_1_1(void) { __typeof__(testc) *__cgo_undefined__1; }
#line 1 "not-type"
void __cgo_f_1_2(void) { testc *__cgo_undefined__2; }
#line 1 "not-int-const"
void __cgo_f_1_3(void) { enum { __cgo_undefined__3 = (testc)*1 }; }
#line 1 "not-num-const"
void __cgo_f_1_4(void) { static const double __cgo_undefined__4 = (testc); }
#line 1 "not-str-lit"
void __cgo_f_1_5(void) { static const char __cgo_undefined__5[] = (testc); }
#line 1 "completed"
int __cgo__1 = __cgo__2;
EOF
not-type: In function '__cgo_f_1_2':
not-type:1:33: error: '__cgo_undefined__2' undeclared (first use in this
function); did you mean '__cgo_f_1_2'?
not-type:1:33: note: each undeclared identifier is reported only once for
each function it appears in
not-int-const: In function '__cgo_f_1_3':
not-int-const:1:61: error: invalid operands to binary * (have 'void (*)()'
and 'int')
not-num-const: In function '__cgo_f_1_4':
not-num-const:1:67: error: incompatible types when initializing type
'double' using type 'void (*)()'
not-str-lit: In function '__cgo_f_1_5':
not-str-lit:1:67: error: invalid initializer
completed: At top level:
completed:1:16: error: '__cgo__2' undeclared here (not in a function); did
you mean '__cgo__1'?
completed:1:16: error: initializer element is not constant
$ gcc -w -Wno-error -o/b001//_cgo_.o -gdwarf-2 -c -xc -I /b001/ -g -O2 -
<<EOF
#line 1 "cgo-builtin-prolog"
#include <stddef.h> /* for ptrdiff_t and size_t below */
/* Define intgo when compiling with GCC. */
typedef ptrdiff_t intgo;
typedef struct { const char *p; intgo n; } _GoString_;
typedef struct { char *p; intgo n; intgo c; } _GoBytes_;
_GoString_ GoString(char *p);
_GoString_ GoStringN(char *p, int l);
_GoBytes_ GoBytes(void *p, int n);
char *CString(_GoString_);
void *CBytes(_GoBytes_);
void *_CMalloc(size_t);
__attribute__ ((unused))
static size_t _GoStringLen(_GoString_ s) { return s.n; }
__attribute__ ((unused))
static const char *_GoStringPtr(_GoString_ s) { return s.p; }
#line 3 "/export/home/amandeep/sol10.go"
#include <stdio.h>
void testc() {
printf("Hello cgo");
}
#line 1 "cgo-generated-wrapper"
#line 1 "cgo-dwarf-inference"
__typeof__(testc) *__cgo__0;
long long __cgodebug_ints[] = {
0,
1
};
double __cgodebug_floats[] = {
0,
1
};
EOF
Assembler messages:
Fatal error: can't create /b001//_cgo_.o: No such file or directory
Assembler messages:
Fatal error: can't create /b001//_cgo_.o: No such file or directory
On Thursday, September 13, 2018 at 10:31:48 PM UTC-7, Ian Lance Taylor
wrote:
>
> On Thu, Sep 13, 2018 at 7:16 PM, <aman...@cohesity.com <javascript:>>
> wrote:
> >
> > Trying to compile the following on Solaris 10 gives the error: call of
> > non-function C.testc
> >
> > package main
> >
> > /*
> > #include <stdio.h>
> >
> > void testc() {
> > printf("Hello cgo");
> > }
> > */
> > import "C"
> >
> > func main() {
> > C.testc()
> > }
> >
> > The output of go env is below:
> > bash-4.3$ go env
> > GOARCH="sparc"
> > GOBIN=""
> > GOCACHE="/export/home/amandeep/.cache/go-build"
> > GOEXE=""
> > GOHOSTARCH="sparc"
> > GOHOSTOS="solaris"
> > GOOS="solaris"
> > GOPATH="/export/home/amandeep/go"
> > GORACE=""
> > GOROOT="/usr/gnu"
> > GOTMPDIR=""
> > GOTOOLDIR="/usr/gnu/libexec/gcc/sparc-sun-solaris2.10/8.2.1"
> > GCCGO="/usr/gnu/bin/gccgo"
> > CC="gcc"
> > CXX="g++"
> > CGO_ENABLED="1"
> > CGO_CFLAGS="-g -O2"
> > CGO_CPPFLAGS=""
> > CGO_CXXFLAGS="-g -O2"
> > CGO_FFLAGS="-g -O2"
> > CGO_LDFLAGS="-g -O2"
> > PKG_CONFIG="pkg-config"
> > GOGCCFLAGS="-fPIC -pthread -fmessage-length=0
> > -fdebug-prefix-map=/tmp/go-build622699141=/tmp/go-build
> > -gno-record-gcc-switches -funwind-tables"
> >
> > How can we debug the issue? What am I missing? a simple go file (without
> > cgo) compiles and runs just fine. Additionally, this runs just fine on
> > Solaris 11 as well.
>
> The cgo tool determines whether testc is a function based in part on
> the debug info generated by the C compiler. It looks like you are
> using GCC; what version of GCC are you using?
>
> You can make some progress in debugging this by running `go build -x`
> to see exactly how cgo is invoked, then running that invocation and
> adding the -debug-gcc option.
>
> Ian
>
--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to golang-nuts+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
