diff options
| author | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-11-12 19:37:47 +0000 |
|---|---|---|
| committer | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-11-12 19:37:47 +0000 |
| commit | e678484ce65d0936cf542dfac80e0d25648b500d (patch) | |
| tree | 58da5367424fc46a1ddd1b556ccd78b739092602 /gcc/config/i386/cygwin.asm | |
| parent | 414a3558d3680ef9066c3589e0619283be8f442b (diff) | |
| download | gcc-e678484ce65d0936cf542dfac80e0d25648b500d.tar.gz | |
Jumbo patch from Geoff Noer to rename CYGWIN32 to CYGWIN.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@23622 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/i386/cygwin.asm')
| -rw-r--r-- | gcc/config/i386/cygwin.asm | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/gcc/config/i386/cygwin.asm b/gcc/config/i386/cygwin.asm new file mode 100644 index 00000000000..4ac4c91a3b1 --- /dev/null +++ b/gcc/config/i386/cygwin.asm @@ -0,0 +1,32 @@ +/* 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 |