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From: "Luo, Ginger" <Ginger.Luo@amd.com>
To: "gdb@sourceware.org" <gdb@sourceware.org>
Subject: getenv always return NULL in GDB/DDD
Date: Fri, 26 Oct 2018 09:35:00 -0000
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Hello, GDB experts


I try to call getenv in my C code, this can return correct env string in te=
rminal, while it returns NULL in GDB/DDD.


#include <stdlib.h>

#include <string.h>

#include <stdio.h>

void main() {
  char * a =3D getenv("ANCHOR"); // ANCHOR exists in the terminal
  if (strlen(a)>0)
    printf("%s\n", a);
}


The GDB/DDD is started from the same terminal. Even I "show environment", t=
his env exists.

Anyone any idea?

OS/Tools version info: RHEL Linux hostname1 2.6.32-754.3.5.el6.x86_64 #1 SM=
P Thu Aug 9 11:56:22 EDT 2018 x86_64 GNU/Linux

GNU gdb (GDB) 7.12

gcc (GCC) 6.3.0
SHELL is tcsh, DDD/GDB is using default settings.

Let me know if you need any further info.

Thanks!
G