markd2

Sampling process 89846 for 3 seconds with 1 millisecond of run time between samples
Sampling completed, processing symbols...
Analysis of sampling Xcode (pid 89846) every 1 millisecond
Process:         Xcode [89846]
Path:            /Applications/Xcode-11-4-1.app/Contents/MacOS/Xcode
Load Address:    0x104e27000
Identifier:      com.apple.dt.Xcode
Version:         11.4.1 (16137)
Build Info:      IDEFrameworks-16137000000000000~3
Code Type:       X86-64

markd2

Writing a custom instrument.

Have this in code in the app


```
@implementation MJSignpost


+ (os_log_t) log {

markd2

Hi!  Thanks for looking

TL;DR - trying to do anything with os_signpost, but nothing is appearing in instruments.
UPDATE: on devices it's working.  Is it supposed to work in the simulator?  Points of Interest are on built-in templates, I figured it should work on the device...

The app is all objc, using the C API.  See at the end for a swift attempt

More details:

Creating the log like this:

markd2

Since they are calling on Respiratory therapist to help fight the Corona virus, and I am a retired one, too old to work in a hospital setting. I'm gonna share some common sense wisdom with those that have the virus and trying to stay home. If my advice is followed as given you will improve your chances of not ending up in the hospital on a ventilator. This applies to the otherwise generally healthy population, so use discretion.

1. Only high temperatures kill a virus, so let your fever run high. Tylenol, Advil. Motrin, Ibuprofen etc. will bring your fever down allowing the virus to live longer. They are saying that ibuprophen, advil etc will actually exacerbate the virus. Use common sense and don't let fever go over 103 or 104 if you got the guts. If it gets higher than that take your tylenol, not ibuprophen or advil to keep it regulated. It helps to keep house warm and cover up with blankets so body does not have to work so hard to generate the heat. It usually takes about 3 days of this to break the fever

markd2

[
["f", "Show next/latest diffs", "setProposedDiffBounds()"],

["n", "Next unreviewed file", "nextUnreviewedFile()"],
["p", "Previous unreviewed file", "prevUnreviewedFile()"],
[null, "Next personally unreviewed file", "nextPersonallyUnreviewedFile()"],
[null, "Previous personally unreviewed file", "prevPersonallyUnreviewedFile()"],
["shift+n", "Next changed file", "nextChangedFile()"],
["shift+p", "Previous changed file", "prevChangedFile()"],
[null, "Next visible file", "nextVisibleFile()"],

markd2

// vararg.m -- use varargs to sum a list of numbers

// clang -g -Wall -o vararg vararg.m


#import <stdio.h>
#import <stdarg.h>

// sum all the integers passed in.  Stopping if it's zero

markd2

#import <stdio.h>
#import <stdlib.h>

// clang -g -Wall -o malloc malloc.c

int main(void) {
    int *blah = malloc(sizeof(int));
    printf("blah on alloc: %x\n", *blah);

    *blah = 23;

markd2

#import <Foundation/Foundation.h>

// clang -g -framework Foundation -o mute mute.m

int main(void) {
    NSMutableString *blarg = NSMutableString.new;
    NSString *copy = blarg.copy;
    NSLog(@"%@ | %@", blarg.class, copy.class);

    return 0;

markd2

import SwiftSyntax

@greeble(bork) typealias Element = Int

let typeAliasKeyword = SyntaxFactory.makeTypealiasKeyword(leadingTrivia: .spaces(1),
                                                                 trailingTrivia: .spaces(1))
let elementID = SyntaxFactory.makeIdentifier("Element", leadingTrivia: .zero, trailingTrivia: .spaces(1))
let equal = SyntaxFactory.makeEqualToken(leadingTrivia: Trivia.zero, trailingTrivia: .spaces(1))
let intType = SyntaxFactory.makeTypeIdentifier("Int", leadingTrivia: .zero, trailingTrivia: .zero)
let initializer = SyntaxFactory.makeTypeInitializerClause(equal: equal, value: intType)

markd2

#import "ViewController.h"

#import <os/activity.h>
#import <os/log.h>

@interface ViewController ()

@end // extension

static os_activity_t g_appActivity;