GNU debugger __text_start () at wrong filepath

First a little preface: I'm using the Windows Subsystem for Linux and the Gaisler BCC version of GCC for cross-compiling (aka "machine-gcc" where the machine is sparc-gaisler-elf in this case).

I compile a simple hello world program for debugging like this

$ sparc-gaisler-elf-gcc -g hello.c -o hello

Then I open the simulator for the particular processor with the GNU debugger (GDB) as a server

$ tsim-leon3 -gdb

...

gdb interface: using port 1234

Starting GDB server. Use Ctrl-C to stop waiting for connection.

In another bash session I start a remote GDB and connect to the server

$ sparc-gaisler-elf-gdb -ex "target extended-remote localhost:1234"

...

Remote debugging using localhost:1234

This works fine. But if I try to load the hello executable I get a problem

$ sparc-gaisler-elf-gdb -ex "target extended-remote localhost:1234" hello

...

Remote debugging using localhost:1234



__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167  /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S: No such file or directory.

     in /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

Current language:  auto; currently asm



(gdb) run

The program being debugged has been started already.

Start it from the beginning? (y or n) y



Starting program: /mnt/c/Users/<username>/bcc-2.0.4-gcc/src/examples/hello/hello



Program received signal SIGSEGV, Segmentation fault.

__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167     in /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

Now, with my Windows Subsystem for Linux setup I have the particular file it's looking for at

/mnt/c/Users/<username>/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

instead of in /opt/bcc-2.0.4-gcc/...

How can I tell it where to find this file?

Update

I tried setting dir as per Employed Russian's answer

(gdb) dir /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/libbcc/shared/trap

Source directories searched: /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/libbcc/shared/trap:$cdir:$cwd



(gdb) list

162             BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 78 - 7B undefined

163             BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 7C - 7F undefined

164

165             /* trap_instruction 0x80 - 0xFF */

166             /* NOTE: "ta 5" can be generated by compiler. */

167             SOFT_TRAP;                                    !  0 System calls

168             SOFT_TRAP;                                    !  1 Breakpoints

169             SOFT_TRAP;                                    !  2 Division by zero

170             FLW_TRAP;                                     !  3 Flush windows

171             SOFT_TRAP;                                    !  4 Clean windows



(gdb) run

The program being debugged has been started already.

Start it from the beginning? (y or n) y



Starting program: /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/examples/hello/hello



Program received signal SIGSEGV, Segmentation fault.

__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167             SOFT_TRAP;                                    !  0 System calls

Even though it's still saying /opt/... it seems to have found the right file now. However, I don't know why it's giving a segmentation fault.

edited Nov 25 '18 at 16:41

asked Nov 25 '18 at 13:10

binaryfunt

2,31411534

Why not try to move that file to /opt path?

– Biswapriyo
Nov 25 '18 at 13:33

@Biswapriyo With WSL, /opt/ is located in a Windows system hidden folder in %localappdata%. It's not really practical. Having said that, I perhaps could create a copy of the relevant files in there?

– binaryfunt
Nov 25 '18 at 13:39

Linux Command: sudo cp /mnt/c/xyz /opt/xyz.

– Biswapriyo
Nov 25 '18 at 13:51

Are you looking to change the source search path for GDB? You might want to try using the set substitute-path from to command

– Hasturkun
Nov 25 '18 at 14:53

@Hasturkun I wouldn't know. I tried it and I don't think it solved the problem. Will update the question soon

– binaryfunt
Nov 25 '18 at 16:23

|
show 1 more comment

First a little preface: I'm using the Windows Subsystem for Linux and the Gaisler BCC version of GCC for cross-compiling (aka "machine-gcc" where the machine is sparc-gaisler-elf in this case).

I compile a simple hello world program for debugging like this

$ sparc-gaisler-elf-gcc -g hello.c -o hello

Then I open the simulator for the particular processor with the GNU debugger (GDB) as a server

$ tsim-leon3 -gdb

...

gdb interface: using port 1234

Starting GDB server. Use Ctrl-C to stop waiting for connection.

In another bash session I start a remote GDB and connect to the server

$ sparc-gaisler-elf-gdb -ex "target extended-remote localhost:1234"

...

Remote debugging using localhost:1234

This works fine. But if I try to load the hello executable I get a problem

$ sparc-gaisler-elf-gdb -ex "target extended-remote localhost:1234" hello

...

Remote debugging using localhost:1234



__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167  /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S: No such file or directory.

     in /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

Current language:  auto; currently asm



(gdb) run

The program being debugged has been started already.

Start it from the beginning? (y or n) y



Starting program: /mnt/c/Users/<username>/bcc-2.0.4-gcc/src/examples/hello/hello



Program received signal SIGSEGV, Segmentation fault.

__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167     in /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

Now, with my Windows Subsystem for Linux setup I have the particular file it's looking for at

/mnt/c/Users/<username>/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

instead of in /opt/bcc-2.0.4-gcc/...

How can I tell it where to find this file?

Update

I tried setting dir as per Employed Russian's answer

(gdb) dir /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/libbcc/shared/trap

Source directories searched: /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/libbcc/shared/trap:$cdir:$cwd



(gdb) list

162             BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 78 - 7B undefined

163             BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 7C - 7F undefined

164

165             /* trap_instruction 0x80 - 0xFF */

166             /* NOTE: "ta 5" can be generated by compiler. */

167             SOFT_TRAP;                                    !  0 System calls

168             SOFT_TRAP;                                    !  1 Breakpoints

169             SOFT_TRAP;                                    !  2 Division by zero

170             FLW_TRAP;                                     !  3 Flush windows

171             SOFT_TRAP;                                    !  4 Clean windows



(gdb) run

The program being debugged has been started already.

Start it from the beginning? (y or n) y



Starting program: /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/examples/hello/hello



Program received signal SIGSEGV, Segmentation fault.

__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167             SOFT_TRAP;                                    !  0 System calls

Even though it's still saying /opt/... it seems to have found the right file now. However, I don't know why it's giving a segmentation fault.

edited Nov 25 '18 at 16:41

asked Nov 25 '18 at 13:10

binaryfunt

2,31411534

Why not try to move that file to /opt path?

– Biswapriyo
Nov 25 '18 at 13:33

@Biswapriyo With WSL, /opt/ is located in a Windows system hidden folder in %localappdata%. It's not really practical. Having said that, I perhaps could create a copy of the relevant files in there?

– binaryfunt
Nov 25 '18 at 13:39

Linux Command: sudo cp /mnt/c/xyz /opt/xyz.

– Biswapriyo
Nov 25 '18 at 13:51

Are you looking to change the source search path for GDB? You might want to try using the set substitute-path from to command

– Hasturkun
Nov 25 '18 at 14:53

@Hasturkun I wouldn't know. I tried it and I don't think it solved the problem. Will update the question soon

– binaryfunt
Nov 25 '18 at 16:23

|
show 1 more comment

First a little preface: I'm using the Windows Subsystem for Linux and the Gaisler BCC version of GCC for cross-compiling (aka "machine-gcc" where the machine is sparc-gaisler-elf in this case).

I compile a simple hello world program for debugging like this

$ sparc-gaisler-elf-gcc -g hello.c -o hello

Then I open the simulator for the particular processor with the GNU debugger (GDB) as a server

$ tsim-leon3 -gdb

...

gdb interface: using port 1234

Starting GDB server. Use Ctrl-C to stop waiting for connection.

In another bash session I start a remote GDB and connect to the server

$ sparc-gaisler-elf-gdb -ex "target extended-remote localhost:1234"

...

Remote debugging using localhost:1234

This works fine. But if I try to load the hello executable I get a problem

$ sparc-gaisler-elf-gdb -ex "target extended-remote localhost:1234" hello

...

Remote debugging using localhost:1234



__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167  /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S: No such file or directory.

     in /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

Current language:  auto; currently asm



(gdb) run

The program being debugged has been started already.

Start it from the beginning? (y or n) y



Starting program: /mnt/c/Users/<username>/bcc-2.0.4-gcc/src/examples/hello/hello



Program received signal SIGSEGV, Segmentation fault.

__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167     in /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

Now, with my Windows Subsystem for Linux setup I have the particular file it's looking for at

/mnt/c/Users/<username>/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

instead of in /opt/bcc-2.0.4-gcc/...

How can I tell it where to find this file?

Update

I tried setting dir as per Employed Russian's answer

(gdb) dir /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/libbcc/shared/trap

Source directories searched: /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/libbcc/shared/trap:$cdir:$cwd



(gdb) list

162             BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 78 - 7B undefined

163             BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 7C - 7F undefined

164

165             /* trap_instruction 0x80 - 0xFF */

166             /* NOTE: "ta 5" can be generated by compiler. */

167             SOFT_TRAP;                                    !  0 System calls

168             SOFT_TRAP;                                    !  1 Breakpoints

169             SOFT_TRAP;                                    !  2 Division by zero

170             FLW_TRAP;                                     !  3 Flush windows

171             SOFT_TRAP;                                    !  4 Clean windows



(gdb) run

The program being debugged has been started already.

Start it from the beginning? (y or n) y



Starting program: /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/examples/hello/hello



Program received signal SIGSEGV, Segmentation fault.

__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167             SOFT_TRAP;                                    !  0 System calls

Even though it's still saying /opt/... it seems to have found the right file now. However, I don't know why it's giving a segmentation fault.

edited Nov 25 '18 at 16:41

asked Nov 25 '18 at 13:10

binaryfunt

2,31411534

First a little preface: I'm using the Windows Subsystem for Linux and the Gaisler BCC version of GCC for cross-compiling (aka "machine-gcc" where the machine is sparc-gaisler-elf in this case).

I compile a simple hello world program for debugging like this

$ sparc-gaisler-elf-gcc -g hello.c -o hello

Then I open the simulator for the particular processor with the GNU debugger (GDB) as a server

$ tsim-leon3 -gdb

...

gdb interface: using port 1234

Starting GDB server. Use Ctrl-C to stop waiting for connection.

In another bash session I start a remote GDB and connect to the server

$ sparc-gaisler-elf-gdb -ex "target extended-remote localhost:1234"

...

Remote debugging using localhost:1234

This works fine. But if I try to load the hello executable I get a problem

$ sparc-gaisler-elf-gdb -ex "target extended-remote localhost:1234" hello

...

Remote debugging using localhost:1234



__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167  /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S: No such file or directory.

     in /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

Current language:  auto; currently asm



(gdb) run

The program being debugged has been started already.

Start it from the beginning? (y or n) y



Starting program: /mnt/c/Users/<username>/bcc-2.0.4-gcc/src/examples/hello/hello



Program received signal SIGSEGV, Segmentation fault.

__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167     in /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

Now, with my Windows Subsystem for Linux setup I have the particular file it's looking for at

/mnt/c/Users/<username>/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S

instead of in /opt/bcc-2.0.4-gcc/...

How can I tell it where to find this file?

Update

I tried setting dir as per Employed Russian's answer

(gdb) dir /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/libbcc/shared/trap

Source directories searched: /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/libbcc/shared/trap:$cdir:$cwd



(gdb) list

162             BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 78 - 7B undefined

163             BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 7C - 7F undefined

164

165             /* trap_instruction 0x80 - 0xFF */

166             /* NOTE: "ta 5" can be generated by compiler. */

167             SOFT_TRAP;                                    !  0 System calls

168             SOFT_TRAP;                                    !  1 Breakpoints

169             SOFT_TRAP;                                    !  2 Division by zero

170             FLW_TRAP;                                     !  3 Flush windows

171             SOFT_TRAP;                                    !  4 Clean windows



(gdb) run

The program being debugged has been started already.

Start it from the beginning? (y or n) y



Starting program: /mnt/c/Users/<user>/bcc-2.0.4-gcc/src/examples/hello/hello



Program received signal SIGSEGV, Segmentation fault.

__text_start () at /opt/bcc-2.0.4-gcc/src/libbcc/shared/trap/trap_table_mvt.S:167

167             SOFT_TRAP;                                    !  0 System calls

Even though it's still saying /opt/... it seems to have found the right file now. However, I don't know why it's giving a segmentation fault.

linux gcc gdb windows-subsystem-for-linux sparc

edited Nov 25 '18 at 16:41

asked Nov 25 '18 at 13:10

binaryfunt

2,31411534

edited Nov 25 '18 at 16:41

asked Nov 25 '18 at 13:10

binaryfunt

2,31411534

edited Nov 25 '18 at 16:41

asked Nov 25 '18 at 13:10

binaryfunt

2,31411534

asked Nov 25 '18 at 13:10

binaryfunt

2,31411534

asked Nov 25 '18 at 13:10

binaryfunt

2,31411534

Why not try to move that file to /opt path?

– Biswapriyo
Nov 25 '18 at 13:33

@Biswapriyo With WSL, /opt/ is located in a Windows system hidden folder in %localappdata%. It's not really practical. Having said that, I perhaps could create a copy of the relevant files in there?

– binaryfunt
Nov 25 '18 at 13:39

Linux Command: sudo cp /mnt/c/xyz /opt/xyz.

– Biswapriyo
Nov 25 '18 at 13:51

Are you looking to change the source search path for GDB? You might want to try using the set substitute-path from to command

– Hasturkun
Nov 25 '18 at 14:53

@Hasturkun I wouldn't know. I tried it and I don't think it solved the problem. Will update the question soon

– binaryfunt
Nov 25 '18 at 16:23

|
show 1 more comment

Why not try to move that file to /opt path?

– Biswapriyo
Nov 25 '18 at 13:33

@Biswapriyo With WSL, /opt/ is located in a Windows system hidden folder in %localappdata%. It's not really practical. Having said that, I perhaps could create a copy of the relevant files in there?

– binaryfunt
Nov 25 '18 at 13:39

Linux Command: sudo cp /mnt/c/xyz /opt/xyz.

– Biswapriyo
Nov 25 '18 at 13:51

Are you looking to change the source search path for GDB? You might want to try using the set substitute-path from to command

– Hasturkun
Nov 25 '18 at 14:53

@Hasturkun I wouldn't know. I tried it and I don't think it solved the problem. Will update the question soon

– binaryfunt
Nov 25 '18 at 16:23

Why not try to move that file to /opt path?

– Biswapriyo
Nov 25 '18 at 13:33

@Biswapriyo With WSL, /opt/ is located in a Windows system hidden folder in %localappdata%. It's not really practical. Having said that, I perhaps could create a copy of the relevant files in there?

– binaryfunt
Nov 25 '18 at 13:39

Linux Command: sudo cp /mnt/c/xyz /opt/xyz.

– Biswapriyo
Nov 25 '18 at 13:51

Are you looking to change the source search path for GDB? You might want to try using the set substitute-path from to command

– Hasturkun
Nov 25 '18 at 14:53

@Hasturkun I wouldn't know. I tried it and I don't think it solved the problem. Will update the question soon

– binaryfunt
Nov 25 '18 at 16:23

|
show 1 more comment

1 Answer
1

active

oldest

votes

How can I tell it where to find this file?

With the directory command.

(gdb) dir /mnt/c/Users/<username>/bcc-2.0.4-gcc/src/libbcc/shared/trap

(gdb) list  # should find the file in the new location

See also source path and set substitite-path.

answered Nov 25 '18 at 16:14

Employed Russian

125k20168238

I'm still getting a segmentation fault. I've updated my question

– binaryfunt
Nov 25 '18 at 16:42

@binaryfunt Your question was about "wrong path". Your new question is about something else entirely. You should accept this answer, and ask a new question.

– Employed Russian
Nov 25 '18 at 17:39

Actually it seems like I asked the wrong question. What I thought was GDB getting the wrong filepath doesn't seem to have been the problem at all, and actually I need to find out why it's printing out the __text_start () thing and why the segmentation fault is happening. I'm going to take a break from this until tomorrow

– binaryfunt
Nov 25 '18 at 17:55

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

How can I tell it where to find this file?

With the directory command.

(gdb) dir /mnt/c/Users/<username>/bcc-2.0.4-gcc/src/libbcc/shared/trap

(gdb) list  # should find the file in the new location

See also source path and set substitite-path.

answered Nov 25 '18 at 16:14

Employed Russian

125k20168238

I'm still getting a segmentation fault. I've updated my question

– binaryfunt
Nov 25 '18 at 16:42

@binaryfunt Your question was about "wrong path". Your new question is about something else entirely. You should accept this answer, and ask a new question.

– Employed Russian
Nov 25 '18 at 17:39

Actually it seems like I asked the wrong question. What I thought was GDB getting the wrong filepath doesn't seem to have been the problem at all, and actually I need to find out why it's printing out the __text_start () thing and why the segmentation fault is happening. I'm going to take a break from this until tomorrow

– binaryfunt
Nov 25 '18 at 17:55

add a comment |

How can I tell it where to find this file?

With the directory command.

(gdb) dir /mnt/c/Users/<username>/bcc-2.0.4-gcc/src/libbcc/shared/trap

(gdb) list  # should find the file in the new location

See also source path and set substitite-path.

answered Nov 25 '18 at 16:14

Employed Russian

125k20168238

I'm still getting a segmentation fault. I've updated my question

– binaryfunt
Nov 25 '18 at 16:42

@binaryfunt Your question was about "wrong path". Your new question is about something else entirely. You should accept this answer, and ask a new question.

– Employed Russian
Nov 25 '18 at 17:39

Actually it seems like I asked the wrong question. What I thought was GDB getting the wrong filepath doesn't seem to have been the problem at all, and actually I need to find out why it's printing out the __text_start () thing and why the segmentation fault is happening. I'm going to take a break from this until tomorrow

– binaryfunt
Nov 25 '18 at 17:55

add a comment |

How can I tell it where to find this file?

With the directory command.

(gdb) dir /mnt/c/Users/<username>/bcc-2.0.4-gcc/src/libbcc/shared/trap

(gdb) list  # should find the file in the new location

See also source path and set substitite-path.

answered Nov 25 '18 at 16:14

Employed Russian

125k20168238

How can I tell it where to find this file?

With the directory command.

(gdb) dir /mnt/c/Users/<username>/bcc-2.0.4-gcc/src/libbcc/shared/trap

(gdb) list  # should find the file in the new location

See also source path and set substitite-path.

answered Nov 25 '18 at 16:14

Employed Russian

125k20168238

answered Nov 25 '18 at 16:14

Employed Russian

125k20168238

answered Nov 25 '18 at 16:14

Employed Russian

125k20168238

answered Nov 25 '18 at 16:14

Employed Russian

125k20168238

I'm still getting a segmentation fault. I've updated my question

– binaryfunt
Nov 25 '18 at 16:42

@binaryfunt Your question was about "wrong path". Your new question is about something else entirely. You should accept this answer, and ask a new question.

– Employed Russian
Nov 25 '18 at 17:39

Actually it seems like I asked the wrong question. What I thought was GDB getting the wrong filepath doesn't seem to have been the problem at all, and actually I need to find out why it's printing out the __text_start () thing and why the segmentation fault is happening. I'm going to take a break from this until tomorrow

– binaryfunt
Nov 25 '18 at 17:55

add a comment |

I'm still getting a segmentation fault. I've updated my question

– binaryfunt
Nov 25 '18 at 16:42

@binaryfunt Your question was about "wrong path". Your new question is about something else entirely. You should accept this answer, and ask a new question.

– Employed Russian
Nov 25 '18 at 17:39

Actually it seems like I asked the wrong question. What I thought was GDB getting the wrong filepath doesn't seem to have been the problem at all, and actually I need to find out why it's printing out the __text_start () thing and why the segmentation fault is happening. I'm going to take a break from this until tomorrow

– binaryfunt
Nov 25 '18 at 17:55

I'm still getting a segmentation fault. I've updated my question

– binaryfunt
Nov 25 '18 at 16:42

@binaryfunt Your question was about "wrong path". Your new question is about something else entirely. You should accept this answer, and ask a new question.

– Employed Russian
Nov 25 '18 at 17:39

Actually it seems like I asked the wrong question. What I thought was GDB getting the wrong filepath doesn't seem to have been the problem at all, and actually I need to find out why it's printing out the __text_start () thing and why the segmentation fault is happening. I'm going to take a break from this until tomorrow

– binaryfunt
Nov 25 '18 at 17:55

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