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kas1e
Why with clib2 proc: requester popup as expected, and with newlib are not ?
Posted on: 2022/5/4 9:18    #1
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@All
Can anybody explain why this code:

#define _POSIX_SOURCE
#include <unistd.h>
#undef _POSIX_SOURCE
#include <stdio.h>

int main() {
    char cwd[256] = {0};

    if (chdir("/proc/self/exe") != 0)
        perror("chdir() error()");
    else {
        if (getcwd(cwd, sizeof(cwd)) == NULL)
            perror("getcwd() error");
        else
            printf("current working directory is: %s\n", cwd);
    }
}


When compile over clib2 correctly bring the "please insert volume proc:" requester, but when the same code builds via newlib it did not ?

In both cases used the same dos.library version (if it matter).

And i of course didn't have "proc:" assigned anywhere and pure type "proc:" in the shell bring the requester as well as expected.
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trgswe
Re: Why with clib2 proc: requester popup as expected, and with newlib are not ?
Posted on: 2022/5/4 11:03    #2
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@kas1e

isn't it because it is linux paths, should newlib really understand linux paths (without additional libs and/or configs in code)?
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graff
Re: Why with clib2 proc: requester popup as expected, and with newlib are not ?
Posted on: 2022/5/4 11:22    #3
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@kas1e
as trgswe write, it must be due to the linux path used with chdir().
In AmigaOS terms that means 'folder "proc" in the parent folder' and hence has nothing to do with any volume or assign which DOS needs to request for.
- Thomas
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broadblues
Re: Why with clib2 proc: requester popup as expected, and with newlib are not ?
Posted on: 2022/5/4 14:39    #4
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@kas1e

Is the clib2 version compiled with -lunix and the newlib version not?

12.RAM Disk:> gcc -o ram:testit_newlib test.c
12.RAM Disk:> testit_newlib
chdir() error(): Invalid argument
12.RAM Disk:> gcc -o ram:testit_newlib test.c -lunix
12.RAM Disk:> testit_newlib
chdir() error(): No such device or address
112.RAM Disk:> gcc -mcrt=clib2 -o ram:testit_clib2 test.c
12.RAM Disk:> testit_clib2
chdir() error(): Invalid argument
12.RAM Disk:> gcc -mcrt=clib2 -o ram:testit_clib2 test.c -lunix
12.RAM Disk:> testit_clib2
chdir() error(): Device not configured
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trgswe
Re: Why with clib2 proc: requester popup as expected, and with newlib are not ?
Posted on: 2022/5/4 15:49    #5
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@kas1e
If it is the new clib2 you must use the function EnableUnixPaths() early in the main function... or make that .unix folder to enable unix paths... is there something similar for newlib? Or for instance -lposix/-lunix?
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kas1e
Re: Why with clib2 proc: requester popup as expected, and with newlib are not ?
Posted on: 2022/5/4 16:02    #6
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@All
False alarm, it was because of mess with -lunix indeed.

While i build it with new clib2 and it have no needs to add -lunix, but instead just create empty .unix file in the root (not folder, but a file) which i have in my test dir i just have requester popup as expected.

Then i tested with newlib, but forget to add -lunix, so, it didn't swapn a requester, but with adding -lunix it is spawn as expected.

So it was just mess of unix path things, yeah.
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