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C Compile time time stamps


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Grant Goodale

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Joined: 13 Nov 2010
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Location: Brampton, Ontario, Canada

PostPosted: Sun Sep 24, 2023 8:25 pm
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Using the z/OS XL C compiler. I would like to have a time stamp included the the generated object code. I know how to do it in Assembler and I believe that there is a way in Java but I cannot seem to find anything in C.
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Pedro

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PostPosted: Sun Sep 24, 2023 10:25 pm
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Quote:
a time stamp


You probably want the time that it was compiled. I could not find that either, but there is a macro variable __timestamp__ which provides a date based on the last change date of the source. See chapter 19 of the Language Reference.
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sergeyken

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PostPosted: Sun Sep 24, 2023 11:42 pm
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You could use __DATE__ and __TIME__.
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Grant Goodale

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PostPosted: Mon Sep 25, 2023 1:04 am
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Thank you all for the replies. Unfortunately, none solved my problem.

However, I did look in the object code generated and I see the following right after the XSD for main:

XSD f main
TXT 20230924153257020400 =
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sergeyken

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PostPosted: Mon Sep 25, 2023 1:21 am
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What is any relation between C language & object code, and Java & MQSeries - ???

And what exactly so called "your problem" is???
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Pedro

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PostPosted: Mon Sep 25, 2023 10:52 am
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You were not clear in showing what you tried but that did not work. Isn't it just something like this?
Code:
const char tstamp = __date__ + __time__;
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Joerg.Findeisen

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PostPosted: Mon Sep 25, 2023 11:13 am
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Pedro wrote:
You were not clear in showing what you tried but that did not work. Isn't it just something like this?
Code:
const char tstamp = __date__ + __time__;


STFW found:
Code:
const char *datetime_str = __DATE__ " " __TIME__;
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Grant Goodale

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PostPosted: Mon Sep 25, 2023 9:06 pm
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I am trying to get a compile date and time into the object code. If an end user reports a problem, I want to know if they have the most recent version.

Again, thanks to everyone for the information provided.
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sergeyken

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PostPosted: Mon Sep 25, 2023 10:04 pm
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Grant Goodale wrote:
I am trying to get a compile date and time into the object code. If an end user reports a problem, I want to know if they have the most recent version.

Again, thanks to everyone for the information provided.

You've received several explicit examples how to do what you want.
But you continue repeating your mantra: "Unfortunately, none solved my problem"
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Pedro

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PostPosted: Mon Sep 25, 2023 11:39 pm
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re: "trying to get a compile date and time into the object code."

When I was at IBM, it was not the compile time that was important, but the APAR number string. We just kept appending the most recent APAR number at the end of a constant. Any defined constants will appear in the OBJ file and load module.

Sort of like this:

Code:
const char APAR_str = "APAR: P10001 P10002 P10003";


When the string got too long, we removed the oldest number.

You probably do not have APARs, but perhaps you can use some number from your problem tracking program. Or even just a short blurb describing the most recent change.
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Grant Goodale

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PostPosted: Wed Sep 27, 2023 8:52 pm
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Pedro, thanks. You have raised a good point.
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