(setjmp): Don't use __sigsetjmp code, do it here. (_setjmp): Likewise.

diff --git a/sysdeps/i386/elf/setjmp.S b/sysdeps/i386/elf/setjmp.S
index 9cfa83d..c64c9ea 100644 (file)
--- a/sysdeps/i386/elf/setjmp.S
+++ b/sysdeps/i386/elf/setjmp.S
@@ -1,5 +1,5 @@
 /* setjmp for i386, ELF version.
-   Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997, 2000, 2001 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,28 +24,75 @@
 #include "bp-sym.h"
 #include "bp-asm.h"
 
+#define PARMS  LINKAGE         /* no space for saved regs */
+#define JMPBUF PARMS
+#define SIGMSK JMPBUF+PTR_SIZE
+
        /* We include the BSD entry points here as well but we make
           them weak.  */
 ENTRY (BP_SYM (setjmp))
        .weak C_SYMBOL_NAME (BP_SYM (setjmp))
-       PUSH_SIGNAL_MASK (1)
        /* Note that we have to use a non-exported symbol in the next
           jump since otherwise gas will emit it as a jump through the
           PLT which is what we cannot use here.  */
-       jmp .Linternal_sigsetjmp
+       ENTER
+
+       movl JMPBUF(%esp), %eax
+       CHECK_BOUNDS_BOTH_WIDE (%eax, JMPBUF(%esp), $JB_SIZE)
+
+       /* Save registers.  */
+       movl %ebx, (JB_BX*4)(%eax)
+       movl %esi, (JB_SI*4)(%eax)
+       movl %edi, (JB_DI*4)(%eax)
+       leal JMPBUF(%esp), %ecx /* Save SP as it will be after we return.  */
+       movl %ecx, (JB_SP*4)(%eax)
+       movl PCOFF(%esp), %ecx  /* Save PC we are returning to now.  */
+       movl %ecx, (JB_PC*4)(%eax)
+       LEAVE /* pop frame pointer to prepare for tail-call.  */
+       movl %ebp, (JB_BP*4)(%eax) /* Save caller's frame pointer.  */
+
+       /* Call __sigjmp_save.  */
+       pushl $1
+       pushl 8(%esp)
+#ifdef PIC
+       /* We cannot use the PLT, because it requires that %ebx be set, but
+           we can't save and restore our caller's value.  Instead, we do an
+           indirect jump through the GOT, using for the temporary register
+           %ecx, which is call-clobbered.  */
+       call here2
+here2: popl %ecx
+       addl $_GLOBAL_OFFSET_TABLE_+[.-here2], %ecx
+       movl C_SYMBOL_NAME (BP_SYM (__sigjmp_save)@GOT)(%ecx), %ecx
+       call *%ecx
+#else
+       call BP_SYM (__sigjmp_save)
+#endif
+       popl %ecx
+       popl %edx
+       ret
 END (BP_SYM (setjmp))
 
 ENTRY (BP_SYM (_setjmp))
        .weak C_SYMBOL_NAME (BP_SYM (_setjmp))
-       PUSH_SIGNAL_MASK (0)
-       /* FALL THROUGH */
+       ENTER
 
-#define PARMS  LINKAGE         /* no space for saved regs */
-#define JMPBUF PARMS
-#define SIGMSK JMPBUF+PTR_SIZE
+       movl JMPBUF(%esp), %eax
+       CHECK_BOUNDS_BOTH_WIDE (%eax, JMPBUF(%esp), $JB_SIZE)
+
+       /* Save registers.  */
+       movl %ebx, (JB_BX*4)(%eax)
+       movl %esi, (JB_SI*4)(%eax)
+       movl %edi, (JB_DI*4)(%eax)
+       leal JMPBUF(%esp), %ecx /* Save SP as it will be after we return.  */
+       movl %ecx, (JB_SP*4)(%eax)
+       movl PCOFF(%esp), %ecx  /* Save PC we are returning to now.  */
+       movl %ecx, (JB_PC*4)(%eax)
+       LEAVE
+       movl %ebp, (JB_BP*4)(%eax) /* Save caller's frame pointer.  */
+       ret
+END (BP_SYM (_setjmp))
 
 ENTRY (BP_SYM (__sigsetjmp))
-.Linternal_sigsetjmp = BP_SYM (__sigsetjmp)
        ENTER
 
        movl JMPBUF(%esp), %eax