how to generate .s(assembly) file when compiling code ?

[huzhongshan]

I added -S in other options , but no response.
I found it generate .s in a tempory directory , but after compile , it disapseared.
I write inline assembly code ,but there is some error in it , I want to find the .s file to see where the bugs.
How can I get the .s file in ide.

I knew I could get it using command line gcc -S ... .....
but in IDE , how ?

[Jenna]

You can place it in "Compiler settings -> Other options".
The assembly code will be in the *.o-files in this case (because C::B uses the -o-option), and it will be done for all processed files.

Or you can change the build-command for your file in the files properties (tab "advanced"):
check "Use custom command ..." and add

Code

$compiler $options $includes -S -c $file
$compiler $options $includes -c $file -o $object

.
The example is for c++-files.
I double the command, so the file will be processed twice, one-time only the assembly is generated, the second time I do the normal processing, otherwise your build will be broken due to missing object-file or because an old object-file is taken (if it exists).

[tiwag]

you have to pass the "enable listings" options to the assembler
http://sourceware.org/binutils/docs/as/a.html#a


do this with the compiler-option "-Wa,"

e.g.
if you want to pass enable listing options "-alhds" to the assembler
you have to use the compiler-option "-Wa,-alhds"



you get the listing in the compiler-build-log, just enable "Save build log" in global compiler settings.

[arp]

Add option "-save-temps".

[manmeetvirdi]

Hi there
Just needed the knowhow for generating assembly code from C.
So I was trying to follow jens method but in mine case the "check" option is disabled as shown in attached picture !!
So how to proceed next?

Iam using codeblocks-ep

[Jenna]

Is your file part of a project ?
If not, this will not work, because would not be able to store the information (it is stored in the project-file).

[manmeetvirdi]

Hi there Jens
Thanks for your help !!

Well mine file is a stand alone file "G2.C". I dint created it inside any project.
I created the file G2.C like this : File-->New-->Files-->c/C++ source

Then as suggested by you I created the project G3 like: File-->new-->Project-->console application and then proceeded ahead to create C project.
Once G3 project was created I included the file G2.C into this project.
Now sure enough  "check" option is now enabled as you said (shown in G2_asm2.jpg)

Jens also I found the other way
Settings-->Compiler and  Debugger-->Other settings --> advanced option (shown in G2_asm1.jpg)
and then included the lines which you mentined in post 2.
...and voila after compiling I got G2.S file

[manmeetvirdi]

And this is what mine first assembly file contains

Code

	.file	"G2.c"
	.text
	.def	_printf;	.scl	3;	.type	32;	.endef
_printf:
	pushl	%ebp
	movl	%esp, %ebp
	pushl	%ebx
	subl	$36, %esp
	leal	12(%ebp), %eax
	movl	%eax, -12(%ebp)
	movl	-12(%ebp), %eax
	movl	%eax, 4(%esp)
	movl	8(%ebp), %eax
	movl	%eax, (%esp)
	call	___mingw_vprintf
	movl	%eax, %ebx
	movl	%ebx, %eax
	addl	$36, %esp
	popl	%ebx
	popl	%ebp
	ret
	.def	___main;	.scl	2;	.type	32;	.endef
	.section .rdata,"dr"
LC0:
	.ascii "\12\12Hi there\12\12\0"
	.text
.globl _main
	.def	_main;	.scl	2;	.type	32;	.endef
_main:
	pushl	%ebp
	movl	%esp, %ebp
	andl	$-16, %esp
	subl	$16, %esp
	call	___main
	movl	$LC0, (%esp)
	call	_printf
	leave
	ret
	.def	___mingw_vprintf;	.scl	2;	.type	32;	.endef

[Jenna]

Jens also I found the other way
Settings-->Compiler and  Debugger-->Other settings --> advanced option (shown in G2_asm1.jpg)
and then included the lines which you mentined in post 2.
...and voila after compiling I got G2.S file

That's what I posted here:

You can place it in "Compiler settings -> Other options".
The assembly code will be in the *.o-files in this case (because C::B uses the -o-option), and it will be done for all processed files.
[...]
I double the command, so the file will be processed twice, one-time only the assembly is generated, the second time I do the normal processing, otherwise your build will be broken due to missing object-file or because an old object-file is taken (if it exists).

But as stated it is done for every file in the project, and that can slow down the build process for larger projects.