Changeset 123 for trunk/src/emx/mklib.smak

Timestamp:

May 12, 2003, 12:48:43 PM (23 years ago)

Author:

zap

Message:

Started the work for re-designing the EMX C runtime library to not require
EMX.DLL. The new design is projected to be as follows:

• all emx syscalls are replaced with the routines from the old sys.lib library which is now compilable in both a.out and OMF formats.
• the sys.a library should be made replaceable and selectable by some gcc switch (e.g. -msyslib=emx would link with emx.a instead of sys.a which would give almost full backward compatibility with emx).
• All C functions names were renamed to not contain the starting underscore (e.g. fopen and not _fopen). The underscored aliases will be added later with the c_alias library (which will be generated automatically from all public symbols of libc; any exported symbol that do not start with an underscore will be given an underscored alias unless such a symbol is already defined).

Also a lot of updates to the building system. It is now much faster (thanks
to Knut's suggestion of using ash's builtin echo).
Also re-wrote thunk1.asm and thunk2.asm to GAS format; this removes the need
for MASM and makes it possible to use 16-bit functions in a.out programs
without the need for EMX.DLL.
Also made a lot of small changes I don't remember now.

File:

• trunk/src/emx/mklib.smak (modified) (1 diff, 1 prop)

trunk/src/emx/mklib.smak

@@ -10 +10 @@
         $(call FECHO,_@,        $$(DO.LIBRARY))$(NL)
 
+# The rule for building the OMF variant of library from a.out format
+ifneq ($(findstring aout,$(.TKIND)),)
+# Remove the .a suffix from library name
+.TARGET := $(patsubst %$A,%,$(.TARGET))
+# Replace 'aout' with 'omf' in .TKIND
+.TKIND := $(subst aout,omf,$(.TKIND))
+# Compute the new output file directory
+.TKIND.DIR := $(subst $(SPACE),-,$(.TKIND))/
+# Append the .lib suffix to target name
+.TARGET := $(.TARGET)$A
+# Compute the name of target file to build
+.TARG@OMF := $(.TKIND.DIR)$(.TARGET)
+# The rule for building the xxx@omf variant of target
+.PHONY: $(.MODULE)@omf
+MODULES += $(.MODULE)@omf
+DO.INSTALL += $(call CP,$.$(.TARG@OMF),$(INS)$(.INSDIR)$(.TARGET))$(NL)
+.DIRS@OMF := $(dir $.$(.TARG@OMF))
+TARGDIRS += $(.DIRS@OMF)
+$(.MODULE)@omf: $(.MODULE) $(.DIRS@OMF) $.$(.TARG@OMF)
+endif # neq ($(findstring aout,$(.TKIND)),)
+
 include comend.smak