| 7 |
|
# : # |
| 8 |
|
# : # |
| 9 |
|
# function : Set the architecture variable. Use simple uname # |
| 10 |
< |
# : query for Sun: for Linux, alos try libc checking.# |
| 10 |
> |
# : query for Sun: for Linux, also try libc checking.# |
| 11 |
|
# : # |
| 12 |
|
# : # |
| 13 |
|
############################################################### |
| 24 |
|
{ |
| 25 |
|
my $uname=`uname -a`; |
| 26 |
|
my ($OSname, $hostname, $OSversion, @rest) = split / /, $uname; |
| 27 |
+ |
my $lddcmd="ldd /bin/ls"; |
| 28 |
|
|
| 29 |
< |
# Retain only the first two version digits: |
| 29 |
> |
# Retain only the first two version digits |
| 30 |
> |
# of os version from uname: |
| 31 |
|
if ( $OSname =~ SunOS ) |
| 32 |
|
{ |
| 33 |
|
$OSversion =~ s/^(.\..)\..*/\1/; |
| 34 |
|
} |
| 35 |
< |
|
| 36 |
< |
if ( $OSname =~ Linux ) |
| 35 |
> |
# Linux: |
| 36 |
> |
elsif ( $OSname =~ Linux ) |
| 37 |
|
{ |
| 38 |
|
# Firstly we check for the kernel version. |
| 39 |
|
$OSversion =~ s/^(.\..)\..*/\1/; |
| 40 |
|
# Now, we also check for the libc version to confirm (or otherwise) |
| 41 |
|
# the choice determined by the previous step: |
| 40 |
– |
# my $lddcmd="ldd /bin/ls"; |
| 41 |
– |
# my ($match) = (`$lddcmd|grep libc` =~ /\s+libc\.so.*\s\=.*\s(.*)\s.*/); |
| 42 |
|
# Open the ldd command as a pipe: |
| 43 |
< |
# my $pid=open(LDD,"$lddcmd 2>&1 |"); |
| 44 |
< |
# exit(1) unless (defined($pid)); |
| 45 |
< |
|
| 46 |
< |
# Loop over lines of output: |
| 47 |
< |
# while (<LDD>) |
| 48 |
< |
# { |
| 49 |
< |
# chomp $_; |
| 50 |
< |
# if (my ($match) = ($_ =~ /\s+libc\.so.*\s.*\s(.*)\s.*/)) |
| 51 |
< |
# { |
| 52 |
< |
# print "> LDD Match: ",$match,"\n"; |
| 53 |
< |
# last; |
| 54 |
< |
# } |
| 55 |
< |
# } |
| 56 |
< |
# |
| 57 |
< |
# Grab something that looks like "libc.*": |
| 58 |
< |
|
| 59 |
< |
# Check if this libc thing is a soft link (it should be): |
| 43 |
> |
my $pid = open(LDD,"$lddcmd 2>&1 |"); |
| 44 |
|
|
| 45 |
< |
# Find out what the thingy is that the link points to: |
| 45 |
> |
# Check that we were able to fork: |
| 46 |
> |
if (defined($pid)) |
| 47 |
> |
{ |
| 48 |
> |
# Loop over lines of output: |
| 49 |
> |
while (<LDD>) |
| 50 |
> |
{ |
| 51 |
> |
chomp $_; |
| 52 |
> |
# Grab something that looks like "libc.*": |
| 53 |
> |
if (my ($libc) = ($_ =~ /\s+libc\.so.*\s.*\s(.*)\s.*/)) |
| 54 |
> |
{ |
| 55 |
> |
# Check if this libc thing is a soft link (it should be), then |
| 56 |
> |
# find out what the thingy is that the link points to: |
| 57 |
> |
if ( -l $libc && defined($value = readlink $libc)) |
| 58 |
> |
{ |
| 59 |
> |
# Extract the useful numeric info from this: |
| 60 |
> |
my ($libcmaj,$libcmin,$libcpatch) = ($value =~ /^libc-([0-9])\.([0-9])\.([0-9])\.so/); |
| 61 |
|
|
| 62 |
< |
# |
| 62 |
> |
# Set the arch accordingly: |
| 63 |
> |
if ($libcmaj == 2 && $libcmin == 1 && $libcpatch >= 3) |
| 64 |
> |
{ |
| 65 |
> |
$ENV{SCRAM_ARCH}="Linux__2.2"; |
| 66 |
> |
} |
| 67 |
> |
|
| 68 |
> |
if ($libcmaj == 2 && $libcmin == 2 && $libcpatch >= 4) |
| 69 |
> |
{ |
| 70 |
> |
$ENV{SCRAM_ARCH}="Linux__2.4"; |
| 71 |
> |
} |
| 72 |
> |
} |
| 73 |
> |
# No need to check other lines: |
| 74 |
> |
last; |
| 75 |
> |
} |
| 76 |
> |
} |
| 77 |
> |
} |
| 78 |
> |
else |
| 79 |
> |
# Fork failed, so we must fall back to |
| 80 |
> |
# the normal mechanism to define the arch: |
| 81 |
> |
{ |
| 82 |
> |
$ENV{SCRAM_ARCH}="${OSname}__${OSversion}"; |
| 83 |
> |
} |
| 84 |
> |
} |
| 85 |
> |
else |
| 86 |
> |
{ |
| 87 |
> |
# At this point it looks like the platform is "other". |
| 88 |
> |
# Set SCRAM_ARCH anyway to the default: |
| 89 |
> |
$ENV{SCRAM_ARCH}="${OSname}__${OSversion}"; |
| 90 |
|
} |
| 91 |
|
|
| 92 |
< |
# Set arch flag to [OS type]__[OSversion]: |
| 92 |
> |
# Set arch flag to [OS type]__[OSversion] if not set by now: |
| 93 |
|
if ( ! defined $ENV{SCRAM_ARCH} ) |
| 94 |
|
{ |
| 95 |
|
$ENV{SCRAM_ARCH}="${OSname}__${OSversion}"; |
