Question

我在使用gdb在Mac OS Mountain Lion上调试Fortran程序时遇到问题。当我调用

时

gdb (fortran executable name)

从终端，我收到以下消息：

This GDB was configured as "x86_64-apple-darwin"...Reading symbols for shared libraries.

warning: Could not find object file "/Users/fx/devel/gcc/ibin-462-x86_64/x86_64-apple-darwin11/libgfortran/.libs/backtrace.o"
- no debug information available for "../../../gcc-4.6.2-RC-20111019/libgfortran/runtime/backtrace.c". ... (an extremely long list of analogous warnings pop up for libgcc and libquadmath libraries) ...

基本上，gdb正在路径（/ Users / fx / ...）中搜索一堆不存在的目标文件。

除此之外，调试器似乎工作正常。有谁知道如何解决这个问题？

附注，gdb在C程序上运行正常。 C和Fortran编译器都运行顺畅; gcc包含在Xcode命令行工具中，而gfortran是从一个单独的源安装的（路径：/ usr / local / bin / gfortran）。

我试着阅读其他几个答案，但似乎没有人能够解决这个问题。

Answer 1

您可以将lldb与Fortran一起使用。举一个示例程序。

      PROGRAM test

      IMPLICIT NONE

      INTEGER                :: i
      INTEGER, DIMENSION(10) :: array

      DO i = 1, 10
         array(i) = i
      END DO

      END PROGRAM

您可以在lldb

中运行它

$ lldb -- test
(lldb) target create "test"
Current executable set to 'test' (x86_64).
(lldb) b test.f:9
Breakpoint 1: where = test`test + 17 at test.f:9, address = 0x0000000100000eac
(lldb) run
Process 869 launched: '/Users/mark/Desktop/test' (x86_64)
Process 869 stopped
* thread #1: tid = 0xb5f5, 0x0000000100000eac test`test + 17 at test.f:9, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
    frame #0: 0x0000000100000eac test`test + 17 at test.f:9
   6          INTEGER, DIMENSION(10) :: array
   7    
   8          DO i = 1, 10
-> 9             array(i) = i
   10         END DO
   11   
   12         END PROGRAM
(lldb) c
Process 869 resuming
Process 869 stopped
* thread #1: tid = 0xb5f5, 0x0000000100000eac test`test + 17 at test.f:9, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
    frame #0: 0x0000000100000eac test`test + 17 at test.f:9
   6          INTEGER, DIMENSION(10) :: array
   7    
   8          DO i = 1, 10
-> 9             array(i) = i
   10         END DO
   11   
   12         END PROGRAM
(lldb) c
Process 869 resuming
Process 869 stopped
* thread #1: tid = 0xb5f5, 0x0000000100000eac test`test + 17 at test.f:9, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
    frame #0: 0x0000000100000eac test`test + 17 at test.f:9
   6          INTEGER, DIMENSION(10) :: array
   7    
   8          DO i = 1, 10
-> 9             array(i) = i
   10         END DO
   11   
   12         END PROGRAM
(lldb) c
Process 869 resuming
Process 869 stopped
* thread #1: tid = 0xb5f5, 0x0000000100000eac test`test + 17 at test.f:9, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
    frame #0: 0x0000000100000eac test`test + 17 at test.f:9
   6          INTEGER, DIMENSION(10) :: array
   7    
   8          DO i = 1, 10
-> 9             array(i) = i
   10         END DO
   11   
   12         END PROGRAM
(lldb) p array
(int [11]) $0 = ([0] = 1, [1] = 2, [2] = 3, [3] = 0, [4] = 0, [5] = 0, [6] = 0, [7] = 0, [8] = 0, [9] = 0, [10] = 0)
(lldb)

有一点需要注意。 lldb本身并不了解Fortran，但你仍然可以使用C等价物。例如，如果要检查fortran数组索引array(3)，则需要使用等效于C的

(lldb) p array[2]
(int) $1 = 3
(lldb)

具有C或C ++等价物的所有东西都可以使用。派生类型将像结构一样运行......所有常规的lldb命令都可以工作。您可以更改堆栈帧。你可以设置断点，你可以步骤说明等等......这一切都可以正常工作。

Fortran在Mac OS上使用gdb进行调试？

1 个答案: