llvm dev - Nov 2019 - Debugging clang with debugger breakpoints ?

Hi David,

I understand what you say, but have you actually read my messages? I don’t think
so,

Anyway, I will repost the question in case someone else can help.

Thanks

John




> On 4 Nov 2019, at 22:18, Zachary Turner <zturner at roblox.com>
wrote:
> 
> 
> 
> On Mon, Nov 4, 2019 at 1:11 PM Joan Lluch via llvm-dev <llvm-dev at
lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote:
> Hi David,
> 
> Thank you for your patience but I still don’t get it:  I don’t see how that
is a “command”, as it’s just a list of strings that state command options.
> 
> This is the output you pasted after running the command:
> 
> > "/Users/joan/LLVM-9/llvm-project/build/Debug/bin/clang"
"-cc1" "-triple" "msp430" "-emit-llvm"
"-disable-free" "-main-file-name" "main.c"
"-mrelocation-model" "static" "-mthread-model"
"posix" "-fmath-errno" "-masm-verbose"
"-mconstructor-aliases" "-nostdsysteminc"
"-dwarf-column-info" "-debugger-tuning=gdb"
"-target-linker-version" "305"
"-momit-leaf-frame-pointer" "-coverage-notes-file"
"/Users/joan/Documents-Local/Relay/RelayNou/main.gcno"
"-resource-dir"
"/Users/joan/LLVM-9/llvm-project/build/Debug/lib/clang/9.0.1"
"-internal-isystem"
"/Users/joan/LLVM-9/llvm-project/build/Debug/bin/../msp430/include"
"-Oz" "-fdebug-compilation-dir"
"/Users/joan/Documents-Local/Relay/RelayNou" "-ferror-limit"
"19" "-fmessage-length" "224"
"-fobjc-runtime=gcc" "-fdiagnostics-show-option"
"-fcolor-diagnostics" "-vectorize-slp" "-faddrsig"
"-o" "main.ll" "-x" "c"
"main.c"
> 
> Yes it is a list of strings.  But the first string
"/Users/joan/LLVM-9/llvm-project/build/Debug/bin/clang" is a command. 
The rest are arguments.  So you should set your debugger to run this command:
> 
> "/Users/joan/LLVM-9/llvm-project/build/Debug/bin/clang" 
> 
> with these arguments:
> 
> "-cc1" "-triple" "msp430"
"-emit-llvm" "-disable-free" "-main-file-name"
"main.c" "-mrelocation-model" "static"
"-mthread-model" "posix" "-fmath-errno"
"-masm-verbose" "-mconstructor-aliases"
"-nostdsysteminc" "-dwarf-column-info"
"-debugger-tuning=gdb" "-target-linker-version"
"305" "-momit-leaf-frame-pointer"
"-coverage-notes-file"
"/Users/joan/Documents-Local/Relay/RelayNou/main.gcno"
"-resource-dir"
"/Users/joan/LLVM-9/llvm-project/build/Debug/lib/clang/9.0.1"
"-internal-isystem"
"/Users/joan/LLVM-9/llvm-project/build/Debug/bin/../msp430/include"
"-Oz" "-fdebug-compilation-dir"
"/Users/joan/Documents-Local/Relay/RelayNou" "-ferror-limit"
"19" "-fmessage-length" "224"
"-fobjc-runtime=gcc" "-fdiagnostics-show-option"
"-fcolor-diagnostics" "-vectorize-slp" "-faddrsig"
"-o" "main.ll" "-x" "c"
"main.c"
> 
> Does that make sense?
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20191104/989f4367/attachment.html>

You hit Reply on my email but then addressed David.  So I want to make sure
you saw my suggestion.  Let me know if you tried that and/or whether or not
it solved your problem.

Zach

On Mon, Nov 4, 2019 at 1:23 PM Joan Lluch <joan.lluch at icloud.com>
wrote:
> Hi David,
>
> I understand what you say, but have you actually read my messages? I don’t
> think so,
>
> Anyway, I will repost the question in case someone else can help.
>
> Thanks
>
> John
>
>
>
>
>
> On 4 Nov 2019, at 22:18, Zachary Turner <zturner at roblox.com>
wrote:
>
>
>
> On Mon, Nov 4, 2019 at 1:11 PM Joan Lluch via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>> Hi David,
>>
>> Thank you for your patience but I still don’t get it:  I don’t see how
>> that is a “command”, as it’s just a list of strings that state command
>> options.
>>
>> This is the output you pasted after running the command:
>
> > "/Users/joan/LLVM-9/llvm-project/build/Debug/bin/clang"
"-cc1"
> "-triple" "msp430" "-emit-llvm"
"-disable-free" "-main-file-name" "main.c"
> "-mrelocation-model" "static"
"-mthread-model" "posix" "-fmath-errno"
> "-masm-verbose" "-mconstructor-aliases"
"-nostdsysteminc"
> "-dwarf-column-info" "-debugger-tuning=gdb"
"-target-linker-version" "305"
> "-momit-leaf-frame-pointer" "-coverage-notes-file"
> "/Users/joan/Documents-Local/Relay/RelayNou/main.gcno"
"-resource-dir"
> "/Users/joan/LLVM-9/llvm-project/build/Debug/lib/clang/9.0.1"
> "-internal-isystem"
"/Users/joan/LLVM-9/llvm-project/build/Debug/bin/../msp430/include"
> "-Oz" "-fdebug-compilation-dir"
"/Users/joan/Documents-Local/Relay/RelayNou"
> "-ferror-limit" "19" "-fmessage-length"
"224" "-fobjc-runtime=gcc"
> "-fdiagnostics-show-option" "-fcolor-diagnostics"
"-vectorize-slp"
> "-faddrsig" "-o" "main.ll" "-x"
"c" "main.c"
>
> Yes it is a list of strings.  But the first string
> "/Users/joan/LLVM-9/llvm-project/build/Debug/bin/clang" is a
command.
> The rest are arguments.  So you should set your debugger to run this
> command:
>
> "/Users/joan/LLVM-9/llvm-project/build/Debug/bin/clang"
>
> with these arguments:
>
> "-cc1" "-triple" "msp430"
"-emit-llvm" "-disable-free" "-main-file-name"
> "main.c" "-mrelocation-model" "static"
"-mthread-model" "posix"
> "-fmath-errno" "-masm-verbose"
"-mconstructor-aliases" "-nostdsysteminc"
> "-dwarf-column-info" "-debugger-tuning=gdb"
"-target-linker-version" "305"
> "-momit-leaf-frame-pointer" "-coverage-notes-file"
> "/Users/joan/Documents-Local/Relay/RelayNou/main.gcno"
"-resource-dir"
> "/Users/joan/LLVM-9/llvm-project/build/Debug/lib/clang/9.0.1"
> "-internal-isystem"
"/Users/joan/LLVM-9/llvm-project/build/Debug/bin/../msp430/include"
> "-Oz" "-fdebug-compilation-dir"
"/Users/joan/Documents-Local/Relay/RelayNou"
> "-ferror-limit" "19" "-fmessage-length"
"224" "-fobjc-runtime=gcc"
> "-fdiagnostics-show-option" "-fcolor-diagnostics"
"-vectorize-slp"
> "-faddrsig" "-o" "main.ll" "-x"
"c" "main.c"
>
> Does that make sense?
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20191104/430be68c/attachment.html>

Sorry Zach, my apologies. 

I understood now what you mean. I tried and it works!. 

But now I found that LLVM_DEBUG statements and other output to the console
doesn’t show. How do I get that back?.

Thanks 

John 

> On 4 Nov 2019, at 22:26, Zachary Turner <zturner at roblox.com>
wrote:
> 
> You hit Reply on my email but then addressed David.  So I want to make sure
you saw my suggestion.  Let me know if you tried that and/or whether or not it
solved your problem.
> 
> Zach
> 
> On Mon, Nov 4, 2019 at 1:23 PM Joan Lluch <joan.lluch at icloud.com
<mailto:joan.lluch at icloud.com>> wrote:
> Hi David,
> 
> I understand what you say, but have you actually read my messages? I don’t
think so,
> 
> Anyway, I will repost the question in case someone else can help.
> 
> Thanks
> 
> John
> 
> 
> 
> 
> 
>> On 4 Nov 2019, at 22:18, Zachary Turner <zturner at roblox.com
<mailto:zturner at roblox.com>> wrote:
>> 
>> 
>> 
>> On Mon, Nov 4, 2019 at 1:11 PM Joan Lluch via llvm-dev <llvm-dev at
lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote:
>> Hi David,
>> 
>> Thank you for your patience but I still don’t get it:  I don’t see how
that is a “command”, as it’s just a list of strings that state command options.
>> 
>> This is the output you pasted after running the command:
>> 
>> > "/Users/joan/LLVM-9/llvm-project/build/Debug/bin/clang"
"-cc1" "-triple" "msp430" "-emit-llvm"
"-disable-free" "-main-file-name" "main.c"
"-mrelocation-model" "static" "-mthread-model"
"posix" "-fmath-errno" "-masm-verbose"
"-mconstructor-aliases" "-nostdsysteminc"
"-dwarf-column-info" "-debugger-tuning=gdb"
"-target-linker-version" "305"
"-momit-leaf-frame-pointer" "-coverage-notes-file"
"/Users/joan/Documents-Local/Relay/RelayNou/main.gcno"
"-resource-dir"
"/Users/joan/LLVM-9/llvm-project/build/Debug/lib/clang/9.0.1"
"-internal-isystem"
"/Users/joan/LLVM-9/llvm-project/build/Debug/bin/../msp430/include"
"-Oz" "-fdebug-compilation-dir"
"/Users/joan/Documents-Local/Relay/RelayNou" "-ferror-limit"
"19" "-fmessage-length" "224"
"-fobjc-runtime=gcc" "-fdiagnostics-show-option"
"-fcolor-diagnostics" "-vectorize-slp" "-faddrsig"
"-o" "main.ll" "-x" "c"
"main.c"
>> 
>> Yes it is a list of strings.  But the first string
"/Users/joan/LLVM-9/llvm-project/build/Debug/bin/clang" is a command. 
The rest are arguments.  So you should set your debugger to run this command:
>> 
>> "/Users/joan/LLVM-9/llvm-project/build/Debug/bin/clang" 
>> 
>> with these arguments:
>> 
>> "-cc1" "-triple" "msp430"
"-emit-llvm" "-disable-free" "-main-file-name"
"main.c" "-mrelocation-model" "static"
"-mthread-model" "posix" "-fmath-errno"
"-masm-verbose" "-mconstructor-aliases"
"-nostdsysteminc" "-dwarf-column-info"
"-debugger-tuning=gdb" "-target-linker-version"
"305" "-momit-leaf-frame-pointer"
"-coverage-notes-file"
"/Users/joan/Documents-Local/Relay/RelayNou/main.gcno"
"-resource-dir"
"/Users/joan/LLVM-9/llvm-project/build/Debug/lib/clang/9.0.1"
"-internal-isystem"
"/Users/joan/LLVM-9/llvm-project/build/Debug/bin/../msp430/include"
"-Oz" "-fdebug-compilation-dir"
"/Users/joan/Documents-Local/Relay/RelayNou" "-ferror-limit"
"19" "-fmessage-length" "224"
"-fobjc-runtime=gcc" "-fdiagnostics-show-option"
"-fcolor-diagnostics" "-vectorize-slp" "-faddrsig"
"-o" "main.ll" "-x" "c"
"main.c"
>> 
>> Does that make sense?
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20191104/5a0b618d/attachment.html>