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pbc_merge

NAME

pbc_merge - Merge multiple Parrot bytecode (PBC) files into
                  a single PBC file.

SYNOPSIS

  pbc_merge -o out.pbc input1.pbc input2.pbc ...
 
 

DESCRIPTION

This program takes two or more PBC files and produces a single merged output PBC file with a single fix-up table and constants table.

Command-Line Options

-o out.pbc

The name of the PBC file to produce, containing the merged segments from the input PBC files.

Functions

static void help(PARROT_INTERP)

Print out the user help info.

static PackFile* pbc_merge_loadpbc(PARROT_INTERP, const char *fullname)

This function loads a PBC file and unpacks it. We can't use Parrot_pbc_read because that is specified to also fixup the segments, which we don't want.

static PackFile_ByteCode* pbc_merge_bytecode(PARROT_INTERP, pbc_merge_input **inputs, int num_inputs, PackFile *pf)

This function merges the bytecode from the input packfiles, storing the offsets that each bit of bytecode now exists at.

static PackFile_ConstTable* pbc_merge_constants(PARROT_INTERP, pbc_merge_input **inputs, int num_inputs, PackFile *pf, PackFile_ByteCode *bc)

This function merges the constants tables from the input PBC files.

static void pbc_merge_fixups(PARROT_INTERP, pbc_merge_input **inputs, int num_inputs, PackFile *pf)

This function merges the fixups tables from the input PBC files.

static void pbc_merge_debugs(PARROT_INTERP, pbc_merge_input **inputs, int num_inputs, PackFile *pf, PackFile_ByteCode *bc)

This function merges the debug segments from the input PBC files.

static void pbc_fixup_bytecode(PARROT_INTERP, pbc_merge_input **inputs, int num_inputs, PackFile_ByteCode *bc)

Fixup bytecode. This includes correcting pointers into the constant table and updating the ops mapping.

static PackFile* pbc_merge_begin(PARROT_INTERP, pbc_merge_input **inputs, int num_inputs)

This is the function that drives PBC merging process.

static void pbc_merge_write(PARROT_INTERP, PackFile *pf, const char *filename)

This functions writes out the merged packfile.

int main(int argc, const char **argv)

The main function that grabs console input, reads in the packfiles provided they exist, hands them to another function that runs the merge process and finally writes out the produced packfile.