(btw, Actually I am running ./buildspurtrunkvmmakerimage.sh)

So I found that ./buildspurtrunkvmmakerimage.sh creates directory cogspurlinuxht containing shell script 'squeak' which for LD_LIBRARY_PATH hard codes eight alternative libc locations. But after reformatting (see attached) a pattern is apparent such that the following generic substitution seems appropriate (and worked for me)...

LIBC_SO="`/usr/bin/ldd "$BIN/squeak" | /bin/fgrep /libc. | sed 's/^.*=> ([^ ]*).*/\1/'`" LIB=`expr "$LIBC_SO" : '(.*)/libc.*'` if [ "$LIB" = "" ]; then echo ERROR: Could not determine libc path for VM exit 1 fi SVMLLP="$LIB:/lib:/usr$LIB:/usr/lib" LD_LIBRARY_PATH="$PLUGINS:$SVMLLP:${LD_LIBRARY_PATH}" exec $GDB "$BIN/squeak" "$@"

except for /lib , /lib32 and /lib64 which substitute as... SVMLLP="$LIB:/usr$LIB"

Now I read [1] "The standard paths [/lib and /usr/lib] will still be searched, but only after the list of paths in LD_LIBRARY_PATH has been exhausted." So I wonder what is the advantage of interleaving the standard paths with $LIB ones ? If /lib and /usr/lib could just be left to be "searched anyway" at the end, the the above snippet seems to cover all existing cases - and likely new cases without change.

[1] http://wiredrevolution.com/system-administration/how-to-correctly-use-ld_lib...

cheers -ben

On Sun, May 22, 2016 at 2:16 AM, Eliot Miranda eliot.miranda@gmail.com wrote:

Hi Ben,

just be sure to post your augmentation of the script back here so the scripts can be updated in svn-soon-to-be-github.

On Fri, May 20, 2016 at 8:54 PM, Ben Coman btc@openinworld.com wrote:

...

On Sat, May 21, 2016 at 4:44 AM, Clément Bera bera.clement@gmail.com wrote:

...

On Fri, May 20, 2016 at 7:29 PM, Ben Coman btc@openinworld.com wrote:

...

I've decided to try and get the simulator working for the first time this weekend. Its been interesting poking through the VM with gdb, but its not "exactly" fun.

Normally if you build a cog development image: $ svn co http://www.squeakvm.org/svn/squeak/branches/Cog/image $ cd ./image $ ./buildsqueaktrunkvmmakerimage.sh

I'm sure I've built successfully from there before, but right now I'm getting and error.. cogspurlinuxht/squeak trunk50.image UpdateSqueakTrunkImage.st Can't infer base LD_LIBRARY_PATH. Aborting. Try adding a line for /lib/i386-linux-gnu/i686/nosegneg/libc.so.6 to cogspurlinuxht/squeak. Please report your edit to squeak vm-dev.

cogspurlinuxht/squeak SpurVMMaker.image BuildSqueakSpurTrunkVMMakerImage.st Can't infer base LD_LIBRARY_PATH. Aborting. Try adding a line for /lib/i386-linux-gnu/i686/nosegneg/libc.so.6 to cogspurlinuxht/squeak. Please report your edit to squeak vm-dev.

I'm in the process of tracking that down, but just reporting in case there is a known quick fix. btw, I'm on Debian Jessie Linux dom0 3.16.0-4-686-pae #1 SMP Debian 3.16.7-ckt20-1+deb8u3 (2016-01-17) i686 GNU/Linux

cheers -ben

...

You have multiple scripts available with comments to run the simulator that work out of the box. It should take a couple minutes to get it working. Then the easiest is to simulate a REPL image to easily debug what you want.

-- _,,,^..^,,,_ best, Eliot

This may be relevant if you are on a 64 bit Ubuntu machine ..

IIRC 64 bit Ubuntu puts its 32 bit libs in /usr/lib32 (its 64 bit libs are in /usr/lib)

Slackware 64 reverses the Ubuntu convention and puts its 32 bit libs in /usr/lib and the 64 bit libs in /usr/lib64

hth

tty

---- On Sun, 22 May 2016 10:11:53 -0400 Ben Coman <btc@openinworld.com> wrote ----

(btw, Actually I am running ./buildspurtrunkvmmakerimage.sh)

So I found that ./buildspurtrunkvmmakerimage.sh creates directory cogspurlinuxht containing shell script 'squeak' which for LD_LIBRARY_PATH hard codes eight alternative libc locations. But after reformatting (see attached) a pattern is apparent such that the following generic substitution seems appropriate (and worked for me)...

LIBC_SO="`/usr/bin/ldd "$BIN/squeak" | /bin/fgrep /libc. | sed 's/^.*=> ([^ ]*).*/\1/'`" LIB=`expr "$LIBC_SO" : '(.*)/libc.*'` if [ "$LIB" = "" ]; then echo ERROR: Could not determine libc path for VM exit 1 fi SVMLLP="$LIB:/lib:/usr$LIB:/usr/lib" LD_LIBRARY_PATH="$PLUGINS:$SVMLLP:${LD_LIBRARY_PATH}" exec $GDB "$BIN/squeak" "$@"

except for /lib , /lib32 and /lib64 which substitute as... SVMLLP="$LIB:/usr$LIB"

Now I read [1] "The standard paths [/lib and /usr/lib] will still be searched, but only after the list of paths in LD_LIBRARY_PATH has been exhausted." So I wonder what is the advantage of interleaving the standard paths with $LIB ones ? If /lib and /usr/lib could just be left to be "searched anyway" at the end, the the above snippet seems to cover all existing cases - and likely new cases without change.

[1] http://wiredrevolution.com/system-administration/how-to-correctly-use-ld_lib...

cheers -ben

On Sun, May 22, 2016 at 2:16 AM, Eliot Miranda <eliot.miranda@gmail.com> wrote: > > Hi Ben, > > just be sure to post your augmentation of the script back here so the scripts can be updated in svn-soon-to-be-github. > > On Fri, May 20, 2016 at 8:54 PM, Ben Coman <btc@openinworld.com> wrote: >> >> >> On Sat, May 21, 2016 at 4:44 AM, Clément Bera <bera.clement@gmail.com> wrote: >> > >> > On Fri, May 20, 2016 at 7:29 PM, Ben Coman <btc@openinworld.com> wrote: >> >> >> >> I've decided to try and get the simulator working for the first >> >> time this weekend. Its been interesting poking through the VM with >> >> gdb, but its not "exactly" fun. >> > >> > >> > Normally if you build a cog development image: >> > $ svn co http://www.squeakvm.org/svn/squeak/branches/Cog/image >> > $ cd ./image >> > $ ./buildsqueaktrunkvmmakerimage.sh >> >> I'm sure I've built successfully from there before, but right now I'm >> getting and error.. >> cogspurlinuxht/squeak trunk50.image UpdateSqueakTrunkImage.st >> Can't infer base LD_LIBRARY_PATH. Aborting. Try adding a line for >> /lib/i386-linux-gnu/i686/nosegneg/libc.so.6 to cogspurlinuxht/squeak. >> Please report your edit to squeak vm-dev. >> >> cogspurlinuxht/squeak SpurVMMaker.image BuildSqueakSpurTrunkVMMakerImage.st >> Can't infer base LD_LIBRARY_PATH. Aborting. Try adding a line for >> /lib/i386-linux-gnu/i686/nosegneg/libc.so.6 to cogspurlinuxht/squeak. >> Please report your edit to squeak vm-dev. >> >> I'm in the process of tracking that down, but just reporting in case >> there is a known quick fix. btw, I'm on Debian Jessie >> Linux dom0 3.16.0-4-686-pae #1 SMP Debian 3.16.7-ckt20-1+deb8u3 >> (2016-01-17) i686 GNU/Linux >> >> cheers -ben >> >> > >> > You have multiple scripts available with comments to run the simulator that work out of the box. It should take a couple minutes to get it working. Then the easiest is to simulate a REPL image to easily debug what you want. > > > > > -- > _,,,^..^,,,_ > best, Eliot >

Here is the proposed change... https://github.com/OpenSmalltalk/vm/pull/15

On Sun, May 22, 2016 at 10:11 PM, Ben Coman btc@openinworld.com wrote:

(btw, Actually I am running ./buildspurtrunkvmmakerimage.sh)

So I found that ./buildspurtrunkvmmakerimage.sh creates directory cogspurlinuxht containing shell script 'squeak' which for LD_LIBRARY_PATH hard codes eight alternative libc locations. But after reformatting (see attached) a pattern is apparent such that the following generic substitution seems appropriate (and worked for me)...

LIBC_SO="`/usr/bin/ldd "$BIN/squeak" | /bin/fgrep /libc. | sed 's/^.*=> ([^ ]*).*/\1/'`" LIB=`expr "$LIBC_SO" : '(.*)/libc.*'` if [ "$LIB" = "" ]; then echo ERROR: Could not determine libc path for VM exit 1 fi SVMLLP="$LIB:/lib:/usr$LIB:/usr/lib" LD_LIBRARY_PATH="$PLUGINS:$SVMLLP:${LD_LIBRARY_PATH}" exec $GDB "$BIN/squeak" "$@"

except for /lib , /lib32 and /lib64 which substitute as... SVMLLP="$LIB:/usr$LIB"

Now I read [1] "The standard paths [/lib and /usr/lib] will still be searched, but only after the list of paths in LD_LIBRARY_PATH has been exhausted." So I wonder what is the advantage of interleaving the standard paths with $LIB ones ? If /lib and /usr/lib could just be left to be "searched anyway" at the end, the the above snippet seems to cover all existing cases - and likely new cases without change.

[1] http://wiredrevolution.com/system-administration/how-to-correctly-use-ld_lib...

cheers -ben

On Sun, May 22, 2016 at 2:16 AM, Eliot Miranda eliot.miranda@gmail.com wrote:

...

Hi Ben,

just be sure to post your augmentation of the script back here so the

scripts can be updated in svn-soon-to-be-github.

...

On Fri, May 20, 2016 at 8:54 PM, Ben Coman btc@openinworld.com wrote:

...

On Sat, May 21, 2016 at 4:44 AM, Clément Bera bera.clement@gmail.com

wrote:

...

...

...

On Fri, May 20, 2016 at 7:29 PM, Ben Coman btc@openinworld.com

wrote:

...

...

...

...

I've decided to try and get the simulator working for the first time this weekend. Its been interesting poking through the VM with gdb, but its not "exactly" fun.

Normally if you build a cog development image: $ svn co http://www.squeakvm.org/svn/squeak/branches/Cog/image $ cd ./image $ ./buildsqueaktrunkvmmakerimage.sh

I'm sure I've built successfully from there before, but right now I'm getting and error.. cogspurlinuxht/squeak trunk50.image UpdateSqueakTrunkImage.st Can't infer base LD_LIBRARY_PATH. Aborting. Try adding a line for /lib/i386-linux-gnu/i686/nosegneg/libc.so.6 to cogspurlinuxht/squeak. Please report your edit to squeak vm-dev.

cogspurlinuxht/squeak SpurVMMaker.image

BuildSqueakSpurTrunkVMMakerImage.st

...

...

Can't infer base LD_LIBRARY_PATH. Aborting. Try adding a line for /lib/i386-linux-gnu/i686/nosegneg/libc.so.6 to cogspurlinuxht/squeak. Please report your edit to squeak vm-dev.

I'm in the process of tracking that down, but just reporting in case there is a known quick fix. btw, I'm on Debian Jessie Linux dom0 3.16.0-4-686-pae #1 SMP Debian 3.16.7-ckt20-1+deb8u3 (2016-01-17) i686 GNU/Linux

cheers -ben

...

You have multiple scripts available with comments to run the

simulator that work out of the box. It should take a couple minutes to get it working. Then the easiest is to simulate a REPL image to easily debug what you want.

...

-- _,,,^..^,,,_ best, Eliot