8sa1-gcc/gcc/config/i386/uwin.asm
Mumit Khan b27d2bd5fe cppfiles.c (INO_T_EQ): Handle UWIN.
* cppfiles.c (INO_T_EQ): Handle UWIN.
        * c-common.c (decl_attributes): Flag unrecognized attribute
        functions as warnings instead of as errors.
        Support for i386-pc-uwin.
        * i386/uwin.h: New file.
        * i386/xm-uwin.h: New file.
        * i386/t-uwin: New file.
        * i386/uwin.asm: New file.
        * configure.in (i[3456]86-*-uwin*): Define.
        Add Workaround for vfork bug when hosted on uwin.
        * configure: Regenerate.
        * cccp.c (INO_T_EQ): Undefine. UWIN has inodes.
        (absolute_filename): UWIN uses POSIX pathnames only.
        * libgcc2.c (getpagesize): Do not define for UWIN.
        (mprotect): Likewise.
        * protoize.c (dirent.h): Conditionally include.
        (fputc): Prototype only if it's not a macro.

From-SVN: r25696
1999-03-10 17:58:01 -07:00

33 lines
733 B
NASM

/* stuff needed for libgcc1 on win32. */
#ifdef L_chkstk
.global __chkstk
.global __alloca
__chkstk:
__alloca:
pushl %ecx /* save temp */
movl %esp,%ecx /* get sp */
addl $0x8,%ecx /* and point to return addr */
probe: cmpl $0x1000,%eax /* > 4k ?*/
jb done
subl $0x1000,%ecx /* yes, move pointer down 4k*/
orl $0x0,(%ecx) /* probe there */
subl $0x1000,%eax /* decrement count */
jmp probe /* and do it again */
done: subl %eax,%ecx
orl $0x0,(%ecx) /* less that 4k, just peek here */
movl %esp,%eax
movl %ecx,%esp /* decrement stack */
movl (%eax),%ecx /* recover saved temp */
movl 4(%eax),%eax /* get return address */
jmp *%eax
#endif