If you want to see the generated code, then compile with the option -Wa,-a. The first part (-Wa,) means pass the second part (-a) to the assembler. You could also use the object code dump utility m1750-coff-objdump to disassemble the generated code. If you compiled using the debug option -g then the disassembled instructions will be annotated with symbolic references.
Here is an example where the compiler generates a machine code listing.
$ m1750-coff-gcc -O2 -Wa,-a hello.c -o hello GAS-1750 /tmp/cca00779.s page 1 1 .file "hello.c" 2 gcc2_compiled.: 3 __gnu_compiled_c: 4 .section .rdata,"r" 5 .LC0: 6 0000 0048 0065 .word 'H','e','l','l','o',' ','w','o' 6 006C 006C 6 006F 0020 6 0077 006F 7 0010 0072 006C .word 'r','l','d','\n',0 7 0064 000A 7 0000 8 .text 9 .global main 10 main: 11 0000 9FEE pshm r14,r14 12 0002 81EF lr r14,r15 13 0004 8500 0009 lim r0,.LC0 ...more output...
Here is another example using the object code dump utility.
$ m1750-coff-objdump -d -l hello
hello: file format coff-m1750
Disassembly of section .text:
00000080 <_stext>:
start():
/opt/xgc/m1750-coff/src/libc/crt0.c:79
80: 85 f0 f7 ff lim r15,63487
84: e5 ee xorr r14,r14
00000086 <.LM4>:
/opt/xgc/m1750-coff/src/libc/crt0.c:84
86: 85 10 80 00 lim r1,32768
0000008a <.LM5>:
/opt/xgc/m1750-coff/src/libc/crt0.c:87
8a: 83 20 lisn r2,1
8c: 85 00 80 00 lim r0,32768
90: b1 01 sr r0,r1
92: f1 02 cr r0,r2
94: 75 07 bez 7
...lots of output...
You can see how big your program is using the size command. The sizes are in bytes.
$ m1750-coff-size hello text data bss dec hex filename 5888 0 2 5890 1702 hello $
The names “text”, “data” and “bss” refer to program sections as follows.
The text section contains executable instructions
The data section contains program variables and other initialized data
The bss section contains program variables and other data initialized to zero
To get more detail you can use the object code dump program, and ask for headers.
$ m1750-coff-objdump -h hello
hello: file format coff-m1750
Sections:
Idx Name Size VMA LMA File off Algn
0 .init 00000000 00000000 00000000 00000000 2**1
ALLOC, LOAD
1 .text 000012b4 00000080 00000080 00000148 2**1
CONTENTS, ALLOC, LOAD, CODE
2 .rdata 0000044c 00001334 00001334 000013fc 2**1
CONTENTS, ALLOC, LOAD, READONLY
3 .data 00000000 00010000 00001780 00000000 2**1
ALLOC, LOAD, DATA
4 .bss 00000002 00010000 00010000 00000000 2**1
ALLOC
5 .stab 000024cc 00000000 00000000 00001848 2**1
CONTENTS, NEVER_LOAD
6 .stabstr 0000082e 00000000 00000000 00003d14 2**0
CONTENTS, NEVER_LOAD
$