Changeset 123 for trunk/src/emx/src/lib/misc/386/setjmp.s

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/src/lib/misc/386/setjmp.s (modified) (2 diffs, 1 prop)

trunk/src/emx/src/lib/misc/386/setjmp.s

@@ -30 +30 @@
         movl    0*4(%esp), %eax         /* return address */
         movl    %eax, J_EIP(%edx)
-        cmpb    $0, __osmode            /* OS/2? */
-        je      1f                      /* No -> skip */
         fs
         movl    0, %eax                 /* Exception handler */
         movl    %eax, J_XCP(%edx)
-1:      xorl    %eax, %eax
+      xorl    %eax, %eax
         EPILOGUE(setjmp)
 
@@ -44 +42 @@
 _longjmp:
         PROFILE_NOFRAME
-        cmpb    $0, __osmode            /* OS/2? */
-        je      2f                      /* No -> skip */
         movl    1*4(%esp), %eax         /* there */
         pushl   J_XCP(%eax)
         call    ___unwind2              /* unwind signal handlers */
         addl    $4, %esp
-2:      movl    1*4(%esp), %edx         /* there */
+      movl    1*4(%esp), %edx         /* there */
         movl    2*4(%esp), %eax         /* n */
         testl   %eax, %eax