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README.md

Table of Contents

  1. Usage
  2. Installation
  3. Changelog
  4. Sample

99trace

Command 99trace traces execution of binary programs produced by the 99c compiler.

The trace is written to stderr.

Usage

99trace a.out [arguments]

Installation

To install or update 99trace

 $ go get [-u] -tags virtual.trace github.com/cznic/99c/99trace

Online documentation: godoc.org/github.com/cznic/99c/99trace

Changelog

2017-10-09: Initial public release.

Sample

$ cd ../examples/hello/
$ 99c hello.c && 99trace a.out 2>log
hello world
$ cat log
# _start
0x00002	func	; /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:13:1
0x00003		arguments      		; /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:14:1
0x00004		push64         (ds)	; /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:14:1
0x00005		push64         (ds+0x10); /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:14:1
0x00006		push64         (ds+0x20); /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:14:1
0x00007		#register_stdfiles	; /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:14:1
0x00008		arguments      		; /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:15:1
0x00009		sub            sp, 0x8	; /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:15:1
0x0000a		arguments      		; /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:15:1
0x0000b		push32         (ap-0x8)	; /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:15:1
0x0000c		push64         (ap-0x10); /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:15:1
0x0000d		call           0x16	; /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:15:1
# main
0x00016	func	; hello.c:3:1
0x00017		push           ap	; hello.c:3:1
0x00018		zero32         		; hello.c:3:1
0x00019		store32        		; hello.c:3:1
0x0001a		arguments      		; hello.c:3:1
0x0001b		push           ts+0x0	; hello.c:4:1
0x0001c		#printf        		; hello.c:4:1
0x0001d		return         		; hello.c:4:1

0x0000e	#exit          	; /home/jnml/src/github.com/cznic/ccir/libc/crt0.c:15:1

$