gccgo:在Solaris 10上cgo无法工作

carvr3hs  于 3个月前  发布在  Go
关注(0)|答案(5)|浏览(77)

你使用的Go版本是什么( go version )?

go version go1.10.3 gccgo (GCC) 8.2.1 20180813 solaris/sparc

这个问题在最新版本中是否会重现？

是的。从源代码编译

你正在使用什么操作系统和处理器架构( go env )?

GOARCH="sparc"
GOBIN=""
GOCACHE="/export/home/amandeep/.cache/go-build"
GOEXE=""
GOHOSTARCH="sparc"
GOHOSTOS="solaris"
GOOS="solaris"
GOPATH="/opt/go_pkgs"
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-build699772262=/tmp/go-build -gno-record-gcc-switches -funwind-tables"

你做了什么？

尝试编译一个简单的程序：

package main                                                                   
 
/*                                                                             
#include <stdio.h>                                                             

void testc() {                                                                 
    printf("Hello cgo");
}                                                                              
*/                                                                             
import "C"                                                                     
                                                                               
func main() {                                                                  
    C.testc()                                                                  
}

你看到了什么？

编译失败，错误信息为：
./abc.go:13:5: 调用非函数C.testc

go

5条答案

按热度按时间
wpcxdonn

wpcxdonn1#

包括一些相关的输出(如在此处的线程中讨论的):

amandeep@s10ldom2:~$ go build -x abc.go 
WORK=/tmp/go-build355496252
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 $WORK/b001/ -g -O2 ./abc.go
# command-line-arguments
./abc.go:13:5: call of non-function C.testc
amandeep@s10ldom2:~$ sudo LD_LIBRARY_PATH=/usr/gnu/lib 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 ./abc.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/abc.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__))
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#define __sun_attr___VPRINTFLIKE__(__n) __attribute__((__format__(printf, __n, 0)))
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#define __FLT32_MIN_EXP__ (-125)
#define stderr (&__iob[2])
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#define __SIZE_MAX__ 0xffffffffU
#define __WCHAR_MAX__ 0x7fffffffL
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#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
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#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
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#define __FLT_MANT_DIG__ 24
#define __LDBL_DECIMAL_DIG__ 36
#define __VERSION__ "8.2.1 20180813"
#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
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#define __DEC128_SUBNORMAL_MIN__ 0.000000000000000000000000000000001E-6143DL
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#define _BSD_PTRDIFF_T_ 
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#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
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#define __INTPTR_MAX__ 0x7fffffff
#define __FLT64_HAS_QUIET_NAN__ 1
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#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/abc.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/abc.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
/export/home/amandeep/abc.go:13:5: call of non-function C.testc
amandeep@s10ldom2:~$ /opt/csw/bin/greadelf --debug --all /b001/_cgo_.o
ELF Header:
  Magic:   7f 45 4c 46 01 02 01 00 00 00 00 00 00 00 00 00 
  Class:                             ELF32
  Data:                              2's complement, big endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - System V
  ABI Version:                       0
  Type:                              REL (Relocatable file)
  Machine:                           Sparc
  Version:                           0x1
  Entry point address:               0x0
  Start of program headers:          0 (bytes into file)
  Start of section headers:          2036 (bytes into file)
  Flags:                             0x0
  Size of this header:               52 (bytes)
  Size of program headers:           0 (bytes)
  Number of program headers:         0
  Size of section headers:           40 (bytes)
  Number of section headers:         20
  Section header string table index: 17

Section Headers:
  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
  [ 1] .text             PROGBITS        00000000 000034 000014 00  AX  0   0  4
  [ 2] .rela.text        RELA            00000000 000c88 000024 0c     18   1  4
  [ 3] .data             PROGBITS        00000000 000048 000020 00  WA  0   0  8
  [ 4] .bss              NOBITS          00000000 000068 000000 00  WA  0   0  1
  [ 5] .rodata.str1.8    PROGBITS        00000000 000068 000010 01 AMS  0   0  8
  [ 6] .debug_frame      PROGBITS        00000000 000078 000020 00      0   0  4
  [ 7] .rela.debug_frame RELA            00000000 000cac 000018 0c     18   6  4
  [ 8] .debug_info       PROGBITS        00000000 000098 000294 00      0   0  1
  [ 9] .rela.debug_info  RELA            00000000 000cc4 00024c 0c     18   8  4
  [10] .debug_abbrev     PROGBITS        00000000 00032c 00011f 00      0   0  1
  [11] .debug_aranges    PROGBITS        00000000 00044b 000020 00      0   0  1
  [12] .rela.debug_arang RELA            00000000 000f10 000018 0c     18  11  4
  [13] .debug_line       PROGBITS        00000000 00046b 000126 00      0   0  1
  [14] .rela.debug_line  RELA            00000000 000f28 00000c 0c     18  13  4
  [15] .debug_str        PROGBITS        00000000 000591 00019b 01  MS  0   0  1
  [16] .comment          PROGBITS        00000000 00072c 00001b 01  MS  0   0  1
  [17] .shstrtab         STRTAB          00000000 000747 0000aa 00      0   0  1
  [18] .symtab           SYMTAB          00000000 000b14 000120 10     19  13  4
  [19] .strtab           STRTAB          00000000 000c34 000053 00      0   0  1
Key to Flags:
  W (write), A (alloc), X (execute), M (merge), S (strings)
  I (info), L (link order), G (group), T (TLS), E (exclude), x (unknown)
  O (extra OS processing required) o (OS specific), p (processor specific)

There are no section groups in this file.

There are no program headers in this file.

Relocation section '.rela.text' at offset 0xc88 contains 3 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000000  00000509 R_SPARC_HI22      00000000   .rodata.str1.8 + 0
00000004  0000050c R_SPARC_LO10      00000000   .rodata.str1.8 + 0
0000000c  00000e07 R_SPARC_WDISP30   00000000   printf + 0

Relocation section '.rela.debug_frame' at offset 0xcac contains 2 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000014  00000617 R_SPARC_UA32      00000000   .debug_frame + 0
00000018  00000217 R_SPARC_UA32      00000000   .text + 0

Relocation section '.rela.debug_info' at offset 0xcc4 contains 49 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000006  00000817 R_SPARC_UA32      00000000   .debug_abbrev + 0
0000000c  00000b17 R_SPARC_UA32      00000000   .debug_str + 9d
00000011  00000b17 R_SPARC_UA32      00000000   .debug_str + 159
00000015  00000b17 R_SPARC_UA32      00000000   .debug_str + 10b
00000019  00000217 R_SPARC_UA32      00000000   .text + 0
0000001d  00000217 R_SPARC_UA32      00000000   .text + 14
00000021  00000a17 R_SPARC_UA32      00000000   .debug_line + 0
0000002f  00000b17 R_SPARC_UA32      00000000   .debug_str + e3
00000036  00000b17 R_SPARC_UA32      00000000   .debug_str + 13f
0000003d  00000b17 R_SPARC_UA32      00000000   .debug_str + 121
00000044  00000b17 R_SPARC_UA32      00000000   .debug_str + 14d
0000004b  00000b17 R_SPARC_UA32      00000000   .debug_str + 100
00000056  00000b17 R_SPARC_UA32      00000000   .debug_str + 1f
00000062  00000b17 R_SPARC_UA32      00000000   .debug_str + 1f
0000006f  00000b17 R_SPARC_UA32      00000000   .debug_str + 148
0000007e  00000b17 R_SPARC_UA32      00000000   .debug_str + de
0000008d  00000b17 R_SPARC_UA32      00000000   .debug_str + 181
0000009c  00000b17 R_SPARC_UA32      00000000   .debug_str + 2c
000000ab  00000b17 R_SPARC_UA32      00000000   .debug_str + 105
000000ba  00000b17 R_SPARC_UA32      00000000   .debug_str + 57
000000cc  00000b17 R_SPARC_UA32      00000000   .debug_str + 65
000000de  00000b17 R_SPARC_UA32      00000000   .debug_str + 8b
000000f0  00000b17 R_SPARC_UA32      00000000   .debug_str + 0
00000102  00000b17 R_SPARC_UA32      00000000   .debug_str + 187
00000114  00000b17 R_SPARC_UA32      00000000   .debug_str + f7
0000012f  00000b17 R_SPARC_UA32      00000000   .debug_str + 7d
00000134  00000b17 R_SPARC_UA32      00000000   .debug_str + 39
00000150  00000b17 R_SPARC_UA32      00000000   .debug_str + 26
00000169  00000b17 R_SPARC_UA32      00000000   .debug_str + 194
00000177  00000b17 R_SPARC_UA32      00000000   .debug_str + 3e
00000190  00000b17 R_SPARC_UA32      00000000   .debug_str + 4c
0000019e  00000b17 R_SPARC_UA32      00000000   .debug_str + 178
000001b2  00000b17 R_SPARC_UA32      00000000   .debug_str + f0
000001c1  00000b17 R_SPARC_UA32      00000000   .debug_str + 76
000001d0  00000b17 R_SPARC_UA32      00000000   .debug_str + 32
000001df  00000b17 R_SPARC_UA32      00000000   .debug_str + 45
000001f5  00000b17 R_SPARC_UA32      00000000   .debug_str + 136
00000203  00001117 R_SPARC_UA32      00000004   __cgo__0 + 0
0000021e  00000b17 R_SPARC_UA32      00000000   .debug_str + ce
0000022c  00001017 R_SPARC_UA32      00000010   __cgodebug_ints + 0
00000243  00000b17 R_SPARC_UA32      00000000   .debug_str + 96
00000248  00000b17 R_SPARC_UA32      00000000   .debug_str + d
00000256  00000f17 R_SPARC_UA32      00000000   __cgodebug_floats + 0
0000025c  00000b17 R_SPARC_UA32      00000000   .debug_str + 70
00000263  00000217 R_SPARC_UA32      00000000   .text + 0
00000267  00000217 R_SPARC_UA32      00000000   .text + 14
00000274  00000217 R_SPARC_UA32      00000000   .text + 14
00000288  00000b17 R_SPARC_UA32      00000000   .debug_str + 12f
0000028c  00000b17 R_SPARC_UA32      00000000   .debug_str + 12f

Relocation section '.rela.debug_aranges' at offset 0xf10 contains 2 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000006  00000717 R_SPARC_UA32      00000000   .debug_info + 0
00000010  00000217 R_SPARC_UA32      00000000   .text + 0

Relocation section '.rela.debug_line' at offset 0xf28 contains 1 entries:
 Offset     Info    Type            Sym.Value  Sym. Name + Addend
00000119  00000217 R_SPARC_UA32      00000000   .text + 0

The decoding of unwind sections for machine type Sparc is not currently supported.

Symbol table '.symtab' contains 18 entries:
   Num:    Value  Size Type    Bind   Vis      Ndx Name
     0: 00000000     0 NOTYPE  LOCAL  DEFAULT  UND 
     1: 00000000     0 FILE    LOCAL  DEFAULT  ABS cgo-gcc-input-177020270.c
     2: 00000000     0 SECTION LOCAL  DEFAULT    1 
     3: 00000000     0 SECTION LOCAL  DEFAULT    3 
     4: 00000000     0 SECTION LOCAL  DEFAULT    4 
     5: 00000000     0 SECTION LOCAL  DEFAULT    5 
     6: 00000000     0 SECTION LOCAL  DEFAULT    6 
     7: 00000000     0 SECTION LOCAL  DEFAULT    8 
     8: 00000000     0 SECTION LOCAL  DEFAULT   10 
     9: 00000000     0 SECTION LOCAL  DEFAULT   11 
    10: 00000000     0 SECTION LOCAL  DEFAULT   13 
    11: 00000000     0 SECTION LOCAL  DEFAULT   15 
    12: 00000000     0 SECTION LOCAL  DEFAULT   16 
    13: 00000000    20 FUNC    GLOBAL DEFAULT    1 testc
    14: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND printf
    15: 00000000    16 OBJECT  GLOBAL DEFAULT    3 __cgodebug_floats
    16: 00000010    16 OBJECT  GLOBAL DEFAULT    3 __cgodebug_ints
    17: 00000004     4 OBJECT  GLOBAL DEFAULT  COM __cgo__0

No version information found in this file.
Contents of the .debug_frame section:

00000000 0000000c ffffffff CIE
  Version:               1
  Augmentation:          ""
  Code alignment factor: 1
  Data alignment factor: -4
  Return address column: 15

  DW_CFA_def_cfa: r14 ofs 0

00000010 0000000c 00000000 FDE cie=00000000 pc=00000000..00000014

Contents of the .debug_info section:

  Compilation Unit @ offset 0x0:
   Length:        0x290 (32-bit)
   Version:       2
   Abbrev Offset: 0x0
   Pointer Size:  4
 <0><b>: Abbrev Number: 1 (DW_TAG_compile_unit)
    <c>   DW_AT_producer    : (indirect string, offset: 0x9d): GNU C17 8.2.1 20180813 -mcpu=v9 -gdwarf-2 -g -O2 
    <10>   DW_AT_language    : 12       (ANSI C99)
    <11>   DW_AT_name        : (indirect string, offset: 0x159): /tmp/cgo-gcc-input-177020270.c 
    <15>   DW_AT_comp_dir    : (indirect string, offset: 0x10b): /export/home/amandeep  
    <19>   DW_AT_low_pc      : 0x0      
    <1d>   DW_AT_high_pc     : 0x14     
    <21>   DW_AT_stmt_list   : 0x0      
 <1><25>: Abbrev Number: 2 (DW_TAG_base_type)
    <26>   DW_AT_byte_size   : 4        
    <27>   DW_AT_encoding    : 5        (signed)
    <28>   DW_AT_name        : int      
 <1><2c>: Abbrev Number: 3 (DW_TAG_base_type)
    <2d>   DW_AT_byte_size   : 4        
    <2e>   DW_AT_encoding    : 7        (unsigned)
    <2f>   DW_AT_name        : (indirect string, offset: 0xe3): unsigned int    
 <1><33>: Abbrev Number: 3 (DW_TAG_base_type)
    <34>   DW_AT_byte_size   : 4        
    <35>   DW_AT_encoding    : 5        (signed)
    <36>   DW_AT_name        : (indirect string, offset: 0x13f): long int       
 <1><3a>: Abbrev Number: 3 (DW_TAG_base_type)
    <3b>   DW_AT_byte_size   : 8        
    <3c>   DW_AT_encoding    : 5        (signed)
    <3d>   DW_AT_name        : (indirect string, offset: 0x121): long long int  
 <1><41>: Abbrev Number: 3 (DW_TAG_base_type)
    <42>   DW_AT_byte_size   : 16       
    <43>   DW_AT_encoding    : 4        (float)
    <44>   DW_AT_name        : (indirect string, offset: 0x14d): long double    
 <1><48>: Abbrev Number: 3 (DW_TAG_base_type)
    <49>   DW_AT_byte_size   : 1        
    <4a>   DW_AT_encoding    : 6        (signed char)
    <4b>   DW_AT_name        : (indirect string, offset: 0x100): char   
 <1><4f>: Abbrev Number: 4 (DW_TAG_pointer_type)
    <50>   DW_AT_byte_size   : 4        
    <51>   DW_AT_type        : <0x48>   
 <1><55>: Abbrev Number: 5 (DW_TAG_typedef)
    <56>   DW_AT_name        : (indirect string, offset: 0x1f): __FILE  
    <5a>   DW_AT_decl_file   : 3        
    <5b>   DW_AT_decl_line   : 21       
    <5c>   DW_AT_decl_column : 27       
    <5d>   DW_AT_type        : <0x61>   
 <1><61>: Abbrev Number: 6 (DW_TAG_structure_type)
    <62>   DW_AT_name        : (indirect string, offset: 0x1f): __FILE  
    <66>   DW_AT_byte_size   : 16       
    <67>   DW_AT_decl_file   : 2        
    <68>   DW_AT_decl_line   : 29       
    <69>   DW_AT_decl_column : 8        
    <6a>   DW_AT_sibling     : <0x126>  
 <2><6e>: Abbrev Number: 7 (DW_TAG_member)
    <6f>   DW_AT_name        : (indirect string, offset: 0x148): _cnt   
    <73>   DW_AT_decl_file   : 2        
    <74>   DW_AT_decl_line   : 35       
    <75>   DW_AT_decl_column : 7        
    <76>   DW_AT_type        : <0x25>   
    <7a>   DW_AT_data_member_location: 2 byte block: 23 0       (DW_OP_plus_uconst: 0)
 <2><7d>: Abbrev Number: 7 (DW_TAG_member)
    <7e>   DW_AT_name        : (indirect string, offset: 0xde): _ptr    
    <82>   DW_AT_decl_file   : 2        
    <83>   DW_AT_decl_line   : 36       
    <84>   DW_AT_decl_column : 17       
    <85>   DW_AT_type        : <0x126>  
    <89>   DW_AT_data_member_location: 2 byte block: 23 4       (DW_OP_plus_uconst: 4)
 <2><8c>: Abbrev Number: 7 (DW_TAG_member)
    <8d>   DW_AT_name        : (indirect string, offset: 0x181): _base  
    <91>   DW_AT_decl_file   : 2        
    <92>   DW_AT_decl_line   : 38       
    <93>   DW_AT_decl_column : 17       
    <94>   DW_AT_type        : <0x126>  
    <98>   DW_AT_data_member_location: 2 byte block: 23 8       (DW_OP_plus_uconst: 8)
 <2><9b>: Abbrev Number: 7 (DW_TAG_member)
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    <a1>   DW_AT_decl_line   : 39       
    <a2>   DW_AT_decl_column : 16       
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    <a7>   DW_AT_data_member_location: 2 byte block: 23 c       (DW_OP_plus_uconst: 12)
 <2><aa>: Abbrev Number: 7 (DW_TAG_member)
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    <b0>   DW_AT_decl_line   : 40       
    <b1>   DW_AT_decl_column : 16       
    <b2>   DW_AT_type        : <0x12c>  
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 <2><b9>: Abbrev Number: 8 (DW_TAG_member)
    <ba>   DW_AT_name        : (indirect string, offset: 0x57): __orientation   
    <be>   DW_AT_decl_file   : 2        
    <bf>   DW_AT_decl_line   : 42       
    <c0>   DW_AT_decl_column : 11       
    <c1>   DW_AT_type        : <0x2c>   
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    <c6>   DW_AT_bit_size    : 2        
    <c7>   DW_AT_bit_offset  : 16       
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 <2><cb>: Abbrev Number: 8 (DW_TAG_member)
    <cc>   DW_AT_name        : (indirect string, offset: 0x65): __ionolock      
    <d0>   DW_AT_decl_file   : 2        
    <d1>   DW_AT_decl_line   : 43       
    <d2>   DW_AT_decl_column : 11       
    <d3>   DW_AT_type        : <0x2c>   
    <d7>   DW_AT_byte_size   : 4        
    <d8>   DW_AT_bit_size    : 1        
    <d9>   DW_AT_bit_offset  : 18       
    <da>   DW_AT_data_member_location: 2 byte block: 23 c       (DW_OP_plus_uconst: 12)
 <2><dd>: Abbrev Number: 8 (DW_TAG_member)
    <de>   DW_AT_name        : (indirect string, offset: 0x8b): __seekable      
    <e2>   DW_AT_decl_file   : 2        
    <e3>   DW_AT_decl_line   : 44       
    <e4>   DW_AT_decl_column : 11       
    <e5>   DW_AT_type        : <0x2c>   
    <e9>   DW_AT_byte_size   : 4        
    <ea>   DW_AT_bit_size    : 1        
    <eb>   DW_AT_bit_offset  : 19       
    <ec>   DW_AT_data_member_location: 2 byte block: 23 c       (DW_OP_plus_uconst: 12)
 <2><ef>: Abbrev Number: 8 (DW_TAG_member)
    <f0>   DW_AT_name        : (indirect string, offset: 0x0): __extendedfd     
    <f4>   DW_AT_decl_file   : 2        
    <f5>   DW_AT_decl_line   : 45       
    <f6>   DW_AT_decl_column : 11       
    <f7>   DW_AT_type        : <0x2c>   
    <fb>   DW_AT_byte_size   : 4        
    <fc>   DW_AT_bit_size    : 1        
    <fd>   DW_AT_bit_offset  : 20       
    <fe>   DW_AT_data_member_location: 2 byte block: 23 c       (DW_OP_plus_uconst: 12)
 <2><101>: Abbrev Number: 8 (DW_TAG_member)
    <102>   DW_AT_name        : (indirect string, offset: 0x187): __xf_nocheck  
    <106>   DW_AT_decl_file   : 2       
    <107>   DW_AT_decl_line   : 46      
    <108>   DW_AT_decl_column : 11      
    <109>   DW_AT_type        : <0x2c>  
    <10d>   DW_AT_byte_size   : 4       
    <10e>   DW_AT_bit_size    : 1       
    <10f>   DW_AT_bit_offset  : 21      
    <110>   DW_AT_data_member_location: 2 byte block: 23 c      (DW_OP_plus_uconst: 12)
 <2><113>: Abbrev Number: 8 (DW_TAG_member)
    <114>   DW_AT_name        : (indirect string, offset: 0xf7): __filler       
    <118>   DW_AT_decl_file   : 2       
    <119>   DW_AT_decl_line   : 47      
    <11a>   DW_AT_decl_column : 11      
    <11b>   DW_AT_type        : <0x2c>  
    <11f>   DW_AT_byte_size   : 4       
    <120>   DW_AT_bit_size    : 10      
    <121>   DW_AT_bit_offset  : 22      
    <122>   DW_AT_data_member_location: 2 byte block: 23 c      (DW_OP_plus_uconst: 12)
 <2><125>: Abbrev Number: 0
 <1><126>: Abbrev Number: 4 (DW_TAG_pointer_type)
    <127>   DW_AT_byte_size   : 4       
    <128>   DW_AT_type        : <0x12c> 
 <1><12c>: Abbrev Number: 3 (DW_TAG_base_type)
    <12d>   DW_AT_byte_size   : 1       
    <12e>   DW_AT_encoding    : 8       (unsigned char)
    <12f>   DW_AT_name        : (indirect string, offset: 0x7d): unsigned char  
 <1><133>: Abbrev Number: 5 (DW_TAG_typedef)
    <134>   DW_AT_name        : (indirect string, offset: 0x39): FILE   
    <138>   DW_AT_decl_file   : 4       
    <139>   DW_AT_decl_line   : 83      
    <13a>   DW_AT_decl_column : 16      
    <13b>   DW_AT_type        : <0x55>  
 <1><13f>: Abbrev Number: 9 (DW_TAG_array_type)
    <140>   DW_AT_type        : <0x55>  
    <144>   DW_AT_sibling     : <0x14f> 
 <2><148>: Abbrev Number: 10 (DW_TAG_subrange_type)
    <149>   DW_AT_type        : <0x2c>  
    <14d>   DW_AT_upper_bound : 19      
 <2><14e>: Abbrev Number: 0
 <1><14f>: Abbrev Number: 11 (DW_TAG_variable)
    <150>   DW_AT_name        : (indirect string, offset: 0x26): __iob  
    <154>   DW_AT_decl_file   : 4       
    <155>   DW_AT_decl_line   : 155     
    <156>   DW_AT_decl_column : 15      
    <157>   DW_AT_type        : <0x13f> 
    <15b>   DW_AT_external    : 1       
    <15c>   DW_AT_declaration : 1       
 <1><15d>: Abbrev Number: 9 (DW_TAG_array_type)
    <15e>   DW_AT_type        : <0x12c> 
    <162>   DW_AT_sibling     : <0x168> 
 <2><166>: Abbrev Number: 12 (DW_TAG_subrange_type)
 <2><167>: Abbrev Number: 0
 <1><168>: Abbrev Number: 11 (DW_TAG_variable)
    <169>   DW_AT_name        : (indirect string, offset: 0x194): _sibuf        
    <16d>   DW_AT_decl_file   : 5       
    <16e>   DW_AT_decl_line   : 208     
    <16f>   DW_AT_decl_column : 23      
    <170>   DW_AT_type        : <0x15d> 
    <174>   DW_AT_external    : 1       
    <175>   DW_AT_declaration : 1       
 <1><176>: Abbrev Number: 11 (DW_TAG_variable)
    <177>   DW_AT_name        : (indirect string, offset: 0x3e): _sobuf 
    <17b>   DW_AT_decl_file   : 5       
    <17c>   DW_AT_decl_line   : 208     
    <17d>   DW_AT_decl_column : 33      
    <17e>   DW_AT_type        : <0x15d> 
    <182>   DW_AT_external    : 1       
    <183>   DW_AT_declaration : 1       
 <1><184>: Abbrev Number: 9 (DW_TAG_array_type)
    <185>   DW_AT_type        : <0x126> 
    <189>   DW_AT_sibling     : <0x18f> 
 <2><18d>: Abbrev Number: 12 (DW_TAG_subrange_type)
 <2><18e>: Abbrev Number: 0
 <1><18f>: Abbrev Number: 11 (DW_TAG_variable)
    <190>   DW_AT_name        : (indirect string, offset: 0x4c): _bufendtab     
    <194>   DW_AT_decl_file   : 5       
    <195>   DW_AT_decl_line   : 240     
    <196>   DW_AT_decl_column : 23      
    <197>   DW_AT_type        : <0x184> 
    <19b>   DW_AT_external    : 1       
    <19c>   DW_AT_declaration : 1       
 <1><19d>: Abbrev Number: 11 (DW_TAG_variable)
    <19e>   DW_AT_name        : (indirect string, offset: 0x178): _lastbuf      
    <1a2>   DW_AT_decl_file   : 5       
    <1a3>   DW_AT_decl_line   : 241     
    <1a4>   DW_AT_decl_column : 15      
    <1a5>   DW_AT_type        : <0x1ab> 
    <1a9>   DW_AT_external    : 1       
    <1aa>   DW_AT_declaration : 1       
 <1><1ab>: Abbrev Number: 4 (DW_TAG_pointer_type)
    <1ac>   DW_AT_byte_size   : 4       
    <1ad>   DW_AT_type        : <0x133> 
 <1><1b1>: Abbrev Number: 13 (DW_TAG_variable)
    <1b2>   DW_AT_name        : (indirect string, offset: 0xf0): optarg 
    <1b6>   DW_AT_decl_file   : 5       
    <1b7>   DW_AT_decl_line   : 320     
    <1b9>   DW_AT_decl_column : 14      
    <1ba>   DW_AT_type        : <0x4f>  
    <1be>   DW_AT_external    : 1       
    <1bf>   DW_AT_declaration : 1       
 <1><1c0>: Abbrev Number: 13 (DW_TAG_variable)
    <1c1>   DW_AT_name        : (indirect string, offset: 0x76): optind 
    <1c5>   DW_AT_decl_file   : 5       
    <1c6>   DW_AT_decl_line   : 321     
    <1c8>   DW_AT_decl_column : 12      
    <1c9>   DW_AT_type        : <0x25>  
    <1cd>   DW_AT_external    : 1       
    <1ce>   DW_AT_declaration : 1       
 <1><1cf>: Abbrev Number: 13 (DW_TAG_variable)
    <1d0>   DW_AT_name        : (indirect string, offset: 0x32): opterr 
    <1d4>   DW_AT_decl_file   : 5       
    <1d5>   DW_AT_decl_line   : 321     
    <1d7>   DW_AT_decl_column : 20      
    <1d8>   DW_AT_type        : <0x25>  
    <1dc>   DW_AT_external    : 1       
    <1dd>   DW_AT_declaration : 1       
 <1><1de>: Abbrev Number: 13 (DW_TAG_variable)
    <1df>   DW_AT_name        : (indirect string, offset: 0x45): optopt 
    <1e3>   DW_AT_decl_file   : 5       
    <1e4>   DW_AT_decl_line   : 321     
    <1e6>   DW_AT_decl_column : 28      
    <1e7>   DW_AT_type        : <0x25>  
    <1eb>   DW_AT_external    : 1       
    <1ec>   DW_AT_declaration : 1       
 <1><1ed>: Abbrev Number: 14 (DW_TAG_subroutine_type)
    <1ee>   DW_AT_sibling     : <0x1f4> 
 <2><1f2>: Abbrev Number: 15 (DW_TAG_unspecified_parameters)
 <2><1f3>: Abbrev Number: 0
 <1><1f4>: Abbrev Number: 16 (DW_TAG_variable)
    <1f5>   DW_AT_name        : (indirect string, offset: 0x136): __cgo__0      
    <1f9>   DW_AT_decl_file   : 6       
    <1fa>   DW_AT_decl_line   : 1       
    <1fb>   DW_AT_decl_column : 20      
    <1fc>   DW_AT_type        : <0x207> 
    <200>   DW_AT_external    : 1       
    <201>   DW_AT_location    : 5 byte block: 3 0 0 0 4         (DW_OP_addr: 4)
 <1><207>: Abbrev Number: 4 (DW_TAG_pointer_type)
    <208>   DW_AT_byte_size   : 4       
    <209>   DW_AT_type        : <0x1ed> 
 <1><20d>: Abbrev Number: 9 (DW_TAG_array_type)
    <20e>   DW_AT_type        : <0x3a>  
    <212>   DW_AT_sibling     : <0x21d> 
 <2><216>: Abbrev Number: 10 (DW_TAG_subrange_type)
    <217>   DW_AT_type        : <0x2c>  
    <21b>   DW_AT_upper_bound : 1       
 <2><21c>: Abbrev Number: 0
 <1><21d>: Abbrev Number: 16 (DW_TAG_variable)
    <21e>   DW_AT_name        : (indirect string, offset: 0xce): __cgodebug_ints        
    <222>   DW_AT_decl_file   : 6       
    <223>   DW_AT_decl_line   : 2       
    <224>   DW_AT_decl_column : 11      
    <225>   DW_AT_type        : <0x20d> 
    <229>   DW_AT_external    : 1       
    <22a>   DW_AT_location    : 5 byte block: 3 0 0 0 10        (DW_OP_addr: 10)
 <1><230>: Abbrev Number: 9 (DW_TAG_array_type)
    <231>   DW_AT_type        : <0x240> 
    <235>   DW_AT_sibling     : <0x240> 
 <2><239>: Abbrev Number: 10 (DW_TAG_subrange_type)
    <23a>   DW_AT_type        : <0x2c>  
    <23e>   DW_AT_upper_bound : 1       
 <2><23f>: Abbrev Number: 0
 <1><240>: Abbrev Number: 3 (DW_TAG_base_type)
    <241>   DW_AT_byte_size   : 8       
    <242>   DW_AT_encoding    : 4       (float)
    <243>   DW_AT_name        : (indirect string, offset: 0x96): double 
 <1><247>: Abbrev Number: 16 (DW_TAG_variable)
    <248>   DW_AT_name        : (indirect string, offset: 0xd): __cgodebug_floats       
    <24c>   DW_AT_decl_file   : 6       
    <24d>   DW_AT_decl_line   : 6       
    <24e>   DW_AT_decl_column : 8       
    <24f>   DW_AT_type        : <0x230> 
    <253>   DW_AT_external    : 1       
    <254>   DW_AT_location    : 5 byte block: 3 0 0 0 0         (DW_OP_addr: 0)
 <1><25a>: Abbrev Number: 17 (DW_TAG_subprogram)
    <25b>   DW_AT_external    : 1       
    <25c>   DW_AT_name        : (indirect string, offset: 0x70): testc  
    <260>   DW_AT_decl_file   : 1       
    <261>   DW_AT_decl_line   : 6       
    <262>   DW_AT_decl_column : 6       
    <263>   DW_AT_low_pc      : 0x0     
    <267>   DW_AT_high_pc     : 0x14    
    <26b>   DW_AT_frame_base  : 2 byte block: 7e 0      (DW_OP_breg14 (r14): 0)
    <26e>   DW_AT_GNU_all_call_sites: 1 
    <26f>   DW_AT_sibling     : <0x285> 
 <2><273>: Abbrev Number: 18 (DW_TAG_GNU_call_site)
    <274>   DW_AT_low_pc      : 0x14    
    <278>   DW_AT_GNU_tail_call: 1      
    <279>   DW_AT_abstract_origin: <0x285>      
 <3><27d>: Abbrev Number: 19 (DW_TAG_GNU_call_site_parameter)
    <27e>   DW_AT_location    : 1 byte block: 58        (DW_OP_reg8 (r8))
    <280>   DW_AT_GNU_call_site_value: 2 byte block: 78 0       (DW_OP_breg8 (r8): 0)
 <3><283>: Abbrev Number: 0
 <2><284>: Abbrev Number: 0
 <1><285>: Abbrev Number: 20 (DW_TAG_subprogram)
    <286>   DW_AT_external    : 1       
    <287>   DW_AT_declaration : 1       
    <288>   DW_AT_MIPS_linkage_name: (indirect string, offset: 0x12f): printf   
    <28c>   DW_AT_name        : (indirect string, offset: 0x12f): printf        
    <290>   DW_AT_decl_file   : 4       
    <291>   DW_AT_decl_line   : 215     
    <292>   DW_AT_decl_column : 12      
 <1><293>: Abbrev Number: 0

Contents of the .debug_abbrev section:

  Number TAG (0x0)
   1      DW_TAG_compile_unit    [has children]
    DW_AT_producer     DW_FORM_strp
    DW_AT_language     DW_FORM_data1
    DW_AT_name         DW_FORM_strp
    DW_AT_comp_dir     DW_FORM_strp
    DW_AT_low_pc       DW_FORM_addr
    DW_AT_high_pc      DW_FORM_addr
    DW_AT_stmt_list    DW_FORM_data4
    DW_AT value: 0     DW_FORM value: 0
   2      DW_TAG_base_type    [no children]
    DW_AT_byte_size    DW_FORM_data1
    DW_AT_encoding     DW_FORM_data1
    DW_AT_name         DW_FORM_string
    DW_AT value: 0     DW_FORM value: 0
   3      DW_TAG_base_type    [no children]
    DW_AT_byte_size    DW_FORM_data1
    DW_AT_encoding     DW_FORM_data1
    DW_AT_name         DW_FORM_strp
    DW_AT value: 0     DW_FORM value: 0
   4      DW_TAG_pointer_type    [no children]
    DW_AT_byte_size    DW_FORM_data1
    DW_AT_type         DW_FORM_ref4
    DW_AT value: 0     DW_FORM value: 0
   5      DW_TAG_typedef    [no children]
    DW_AT_name         DW_FORM_strp
    DW_AT_decl_file    DW_FORM_data1
    DW_AT_decl_line    DW_FORM_data1
    DW_AT_decl_column  DW_FORM_data1
    DW_AT_type         DW_FORM_ref4
    DW_AT value: 0     DW_FORM value: 0
   6      DW_TAG_structure_type    [has children]
    DW_AT_name         DW_FORM_strp
    DW_AT_byte_size    DW_FORM_data1
    DW_AT_decl_file    DW_FORM_data1
    DW_AT_decl_line    DW_FORM_data1
    DW_AT_decl_column  DW_FORM_data1
    DW_AT_sibling      DW_FORM_ref4
    DW_AT value: 0     DW_FORM value: 0
   7      DW_TAG_member    [no children]
    DW_AT_name         DW_FORM_strp
    DW_AT_decl_file    DW_FORM_data1
    DW_AT_decl_line    DW_FORM_data1
    DW_AT_decl_column  DW_FORM_data1
    DW_AT_type         DW_FORM_ref4
    DW_AT_data_member_location DW_FORM_block1
    DW_AT value: 0     DW_FORM value: 0
   8      DW_TAG_member    [no children]
    DW_AT_name         DW_FORM_strp
    DW_AT_decl_file    DW_FORM_data1
    DW_AT_decl_line    DW_FORM_data1
    DW_AT_decl_column  DW_FORM_data1
    DW_AT_type         DW_FORM_ref4
    DW_AT_byte_size    DW_FORM_data1
    DW_AT_bit_size     DW_FORM_data1
    DW_AT_bit_offset   DW_FORM_data1
    DW_AT_data_member_location DW_FORM_block1
    DW_AT value: 0     DW_FORM value: 0
   9      DW_TAG_array_type    [has children]
    DW_AT_type         DW_FORM_ref4
    DW_AT_sibling      DW_FORM_ref4
    DW_AT value: 0     DW_FORM value: 0
   10      DW_TAG_subrange_type    [no children]
    DW_AT_type         DW_FORM_ref4
    DW_AT_upper_bound  DW_FORM_data1
    DW_AT value: 0     DW_FORM value: 0
   11      DW_TAG_variable    [no children]
    DW_AT_name         DW_FORM_strp
    DW_AT_decl_file    DW_FORM_data1
    DW_AT_decl_line    DW_FORM_data1
    DW_AT_decl_column  DW_FORM_data1
    DW_AT_type         DW_FORM_ref4
    DW_AT_external     DW_FORM_flag
    DW_AT_declaration  DW_FORM_flag
    DW_AT value: 0     DW_FORM value: 0
   12      DW_TAG_subrange_type    [no children]
    DW_AT value: 0     DW_FORM value: 0
   13      DW_TAG_variable    [no children]
    DW_AT_name         DW_FORM_strp
    DW_AT_decl_file    DW_FORM_data1
    DW_AT_decl_line    DW_FORM_data2
    DW_AT_decl_column  DW_FORM_data1
    DW_AT_type         DW_FORM_ref4
    DW_AT_external     DW_FORM_flag
    DW_AT_declaration  DW_FORM_flag
    DW_AT value: 0     DW_FORM value: 0
   14      DW_TAG_subroutine_type    [has children]
    DW_AT_sibling      DW_FORM_ref4
    DW_AT value: 0     DW_FORM value: 0
   15      DW_TAG_unspecified_parameters    [no children]
    DW_AT value: 0     DW_FORM value: 0
   16      DW_TAG_variable    [no children]
    DW_AT_name         DW_FORM_strp
    DW_AT_decl_file    DW_FORM_data1
    DW_AT_decl_line    DW_FORM_data1
    DW_AT_decl_column  DW_FORM_data1
    DW_AT_type         DW_FORM_ref4
    DW_AT_external     DW_FORM_flag
    DW_AT_location     DW_FORM_block1
    DW_AT value: 0     DW_FORM value: 0
   17      DW_TAG_subprogram    [has children]
    DW_AT_external     DW_FORM_flag
    DW_AT_name         DW_FORM_strp
    DW_AT_decl_file    DW_FORM_data1
    DW_AT_decl_line    DW_FORM_data1
    DW_AT_decl_column  DW_FORM_data1
    DW_AT_low_pc       DW_FORM_addr
    DW_AT_high_pc      DW_FORM_addr
    DW_AT_frame_base   DW_FORM_block1
    DW_AT_GNU_all_call_sites DW_FORM_flag
    DW_AT_sibling      DW_FORM_ref4
    DW_AT value: 0     DW_FORM value: 0
   18      DW_TAG_GNU_call_site    [has children]
    DW_AT_low_pc       DW_FORM_addr
    DW_AT_GNU_tail_call DW_FORM_flag
    DW_AT_abstract_origin DW_FORM_ref4
    DW_AT value: 0     DW_FORM value: 0
   19      DW_TAG_GNU_call_site_parameter    [no children]
    DW_AT_location     DW_FORM_block1
    DW_AT_GNU_call_site_value DW_FORM_block1
    DW_AT value: 0     DW_FORM value: 0
   20      DW_TAG_subprogram    [no children]
    DW_AT_external     DW_FORM_flag
    DW_AT_declaration  DW_FORM_flag
    DW_AT_MIPS_linkage_name DW_FORM_strp
    DW_AT_name         DW_FORM_strp
    DW_AT_decl_file    DW_FORM_data1
    DW_AT_decl_line    DW_FORM_data1
    DW_AT_decl_column  DW_FORM_data1
    DW_AT value: 0     DW_FORM value: 0

Contents of the .debug_aranges section:

  Length:                   28
  Version:                  2
  Offset into .debug_info:  0x0
  Pointer Size:             4
  Segment Size:             0

    Address    Length
    00000000 00000014 
    00000000 00000000 

Raw dump of debug contents of section .debug_line:

  Offset:                      0x0
  Length:                      290
  DWARF Version:               2
  Prologue Length:             266
  Minimum Instruction Length:  4
  Initial value of 'is_stmt':  1
  Line Base:                   -5
  Line Range:                  14
  Opcode Base:                 13

 Opcodes:
  Opcode 1 has 0 args
  Opcode 2 has 1 args
  Opcode 3 has 1 args
  Opcode 4 has 1 args
  Opcode 5 has 1 args
  Opcode 6 has 0 args
  Opcode 7 has 0 args
  Opcode 8 has 0 args
  Opcode 9 has 1 args
  Opcode 10 has 0 args
  Opcode 11 has 0 args
  Opcode 12 has 1 args

 The Directory Table (offset 0x1b):
  1     /export/home/amandeep
  2     /usr/include
  3     /usr/gnu/lib/gcc/sparc-sun-solaris2.10/8.2.1/include-fixed/iso
  4     /usr/gnu/lib/gcc/sparc-sun-solaris2.10/8.2.1/include-fixed

 The File Name Table (offset 0xb9):
  Entry Dir     Time    Size    Name
  1     1       0       0       abc.go
  2     2       0       0       stdio_impl.h
  3     2       0       0       stdio_tag.h
  4     3       0       0       stdio_iso.h
  5     4       0       0       stdio.h
  6     0       0       0       cgo-dwarf-inference

 Line Number Statements:
  [0x00000114]  Set column to 14
  [0x00000116]  Extended opcode 2: set Address to 0x0
  [0x0000011d]  Special opcode 10: advance Address by 0 to 0x0 and Line by 5 to 6
  [0x0000011e]  Set column to 5
  [0x00000120]  Special opcode 6: advance Address by 0 to 0x0 and Line by 1 to 7
  [0x00000121]  Advance PC by 20 to 0x14
  [0x00000123]  Extended opcode 1: End of Sequence

Contents of the .debug_str section:

  0x00000000 5f5f6578 74656e64 65646664 005f5f63 __extendedfd.__c
  0x00000010 676f6465 6275675f 666c6f61 7473005f godebug_floats._
  0x00000020 5f46494c 45005f5f 696f6200 5f666c61 _FILE.__iob._fla
  0x00000030 67006f70 74657272 0046494c 45005f73 g.opterr.FILE._s
  0x00000040 6f627566 006f7074 6f707400 5f627566 obuf.optopt._buf
  0x00000050 656e6474 6162005f 5f6f7269 656e7461 endtab.__orienta
  0x00000060 74696f6e 005f5f69 6f6e6f6c 6f636b00 tion.__ionolock.
  0x00000070 74657374 63006f70 74696e64 00756e73 testc.optind.uns
  0x00000080 69676e65 64206368 6172005f 5f736565 igned char.__see
  0x00000090 6b61626c 6500646f 75626c65 00474e55 kable.double.GNU
  0x000000a0 20433137 20382e32 2e312032 30313830  C17 8.2.1 20180
  0x000000b0 38313320 2d6d6370 753d7639 202d6764 813 -mcpu=v9 -gd
  0x000000c0 77617266 2d32202d 67202d4f 32005f5f warf-2 -g -O2.__
  0x000000d0 63676f64 65627567 5f696e74 73005f70 cgodebug_ints._p
  0x000000e0 74720075 6e736967 6e656420 696e7400 tr.unsigned int.
  0x000000f0 6f707461 7267005f 5f66696c 6c657200 optarg.__filler.
  0x00000100 63686172 005f6669 6c65002f 6578706f char._file./expo
  0x00000110 72742f68 6f6d652f 616d616e 64656570 rt/home/amandeep
  0x00000120 006c6f6e 67206c6f 6e672069 6e740070 .long long int.p
  0x00000130 72696e74 66005f5f 63676f5f 5f30006c rintf.__cgo__0.l
  0x00000140 6f6e6720 696e7400 5f636e74 006c6f6e ong int._cnt.lon
  0x00000150 6720646f 75626c65 002f746d 702f6367 g double./tmp/cg
  0x00000160 6f2d6763 632d696e 7075742d 31373730 o-gcc-input-1770
  0x00000170 32303237 302e6300 5f6c6173 74627566 20270.c._lastbuf
  0x00000180 005f6261 7365005f 5f78665f 6e6f6368 ._base.__xf_noch
  0x00000190 65636b00 5f736962 756600            eck._sibuf.
赞(0）分享  回复(0）举报  3个月前
7cjasjjr

7cjasjjr2#

/cc @ianlancetaylor@thanm

赞(0）分享  回复(0）举报  3个月前
jfewjypa

jfewjypa3#

从邮件列表中得知，这是一个32位SPARC处理器的问题，可能的原因是debug/elf包中的*File类型没有applyRelocationsSPARC方法。虽然有一个applyRelocationsSPARC64,但没有32位实现。

赞(0）分享  回复(0）举报  3个月前
iqxoj9l9

iqxoj9l94#

你好，@ianlancetaylor。我刚刚查看了源代码，发现已经存在实现：https://github.com/golang/gofrontend/blob/7b25b4dff4778fc4d6b5d6e10594814146b3e5dd/libgo/go/debug/elf/file.go#L1073
我是不是漏掉了什么？

赞(0）分享  回复(0）举报  3个月前
hmtdttj4

hmtdttj45#

对不起，您说得对。我正在查看gc源代码，但您使用的是gccgo。该函数在gccgo中存在。
我不确定这里发生了什么。

赞(0）分享  回复(0）举报  4个月前
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