Re: GDB and MacOS 11.4/BigSur

[Sam Warner <samuel.r.warner@me.com>]

Hi, - some good news Gdb 9.2 doesn’t have this issue. 

   I’ll go confirm Eclipse/CDT works with GDB 9.2 for a quick check, and then back to setting up the build-environment for 10.2 (and testing the fix you have).  Just want to aid others with an interim solution for Eclipse/CDT.

Sam

sam@eclipsec bin % gdb gdb
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Reading symbols from gdb...
(No debugging symbols found in gdb)
(gdb) file /Users/sam/eclipse-workspace/Eclipse.HelloWorld.MacOS.Gcc/Release/Eclipse.HelloWorld.MacOS.Gcc
Reading symbols from /Users/sam/eclipse-workspace/Eclipse.HelloWorld.MacOS.Gcc/Release/Eclipse.HelloWorld.MacOS.Gcc...
(No debugging symbols found in /Users/sam/eclipse-workspace/Eclipse.HelloWorld.MacOS.Gcc/Release/Eclipse.HelloWorld.MacOS.Gcc)
BFD: /usr/lib/dyld(i386:x86-64): unknown load command 0x34
BFD: /usr/lib/dyld(i386:x86-64): unknown load command 0x34
BFD: /usr/lib/dyld(i386:x86-64): unknown load command 0x34
(gdb) run
Starting program: /Users/sam/eclipse-workspace/Eclipse.HelloWorld.MacOS.Gcc/Release/Eclipse.HelloWorld.MacOS.Gcc 
[New Thread 0x2703 of process 25537]

> On Jun 27, 2021, at 5:48 PM, Simon Marchi <simon.marchi@polymtl.ca> wrote:
> 
> On 2021-06-27 6:44 p.m., Sam Warner wrote:
>> Hi Simon,
>> 
>>   Thanks - yes - I’ll start with that patch first.  I obtain the same call stack
>> 
>>   My next two things to learn is how to get the equivalent of the symbol-server working, and then to setup a developer-environment for GDB.  Any pointers would be great.
> 
> I don't know what symbol-server is, I can't help you with that.
> 
> To build gdb, you normally just need to run these commands at the
> top-level:
> 
>  ./configure
>  make all-gdb
> 
> The built gdb will be at gdb/gdb.  But there are some additional quirks
> on macOS though, so it's not as simple as that.  GDB requires libgmp, so
> you need to install that.  You need GNU make to build (the make that
> comes with macOS is not GNU make).  You can install those using Macports
> (or Brew, I guess) or by building them by hand.  You can then probably
> get by using the commands:
> 
>  ./configure --disable-nls CFLAGS="-g3 -O0" CXXFLAGS="-std=gnu++17 -g3 -O0" --with-libgmp-prefix=/opt/local
>  gmake
> 
> Update /opt/local to point where your libgmp is installed.  gmake refers
> to GNU make, when installed through Macports.
> 
> Simon