2015-08-10 03:00:49 +00:00
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-- Perl configuration --
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Perl uses a huge configuration file, normally generated via the Configure script
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at build-time. This fails when cross-compiling though, so we need to supply our
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own.
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We're using perlconfig.pl to piece together the final configuration from a bunch
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of configuration files(all ending in .config). Please refer to perlconfig.pl's
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POD for information on usage and syntax.
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Throughout the files, you will see a bunch of references to private symbols with
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the prefix "owrt". These are used to control output in an effort to both
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simplify writing configuration files, as well as to provide switchable options
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to select the feature set of the resulting perl installation.
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The following will be a summary/quick reference of all private symbols we're
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currently using:
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Passed via architecture configuration file(mipsel.config, i486.config, ...)
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---------------------------------------------------------------------------
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Symbol Values Description
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owrt:bits 32/64 Target's native word length.
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owrt:endian little/big Target's endianness.
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owrt:arch mipsel, i486, ... Target's architecture name.
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owrt:sig_count 64/128 Number of signals the target
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provides(NSIG - 1).
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owrt:sigs * Symbolic names of the first 32 signals
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this architecture provides, in numeric
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order. Seperated by whitespaces.
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owrt:sig_name_extra * Symbolic names of any additional signals
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this architecture provides after
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owrt:sig_count. Seperated by
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whitespaces.
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owrt:sig_num_extra * Numeric values associated with the
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signal names provided in
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owrt:sig_name_extra. Seperated by
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whitespaces.
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Passed via command line
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-----------------------
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Symbol Values Description
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owrt:libc glibc/uclibc/musl Which C library implementation is in
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use.
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owrt:threads yes/no Whether to enable threading support.
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owrt:ipv6 define/undef Whether to enable IPv6 support.
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owrt:target_cross * Target architecture's host triplet.
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owrt:target_cc * C compiler to use.
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2015-11-29 20:49:24 +00:00
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owrt:gccversion * target_cc's version number.
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2015-08-10 03:00:49 +00:00
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owrt:cflags * Additional C compiler flags.
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owrt:ldflags * Additional linker flags.
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owrt:staging_dir * Same as OpenWRT buildroot's
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$(STAGING_DIR).
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owrt:host_perl_prefix * host-perl installation prefix.
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Passed via version.config
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-------------------------
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Symbol Values Description
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owrt:perllibpath * Path to perl library files, from the
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target's point of view.
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