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-rw-r--r--sysdeps/unix/sysv/linux/i386/clone.S14
-rw-r--r--sysdeps/unix/sysv/linux/i386/getcontext.S6
-rw-r--r--sysdeps/unix/sysv/linux/i386/makecontext.S6
-rw-r--r--sysdeps/unix/sysv/linux/i386/mmap.S4
-rw-r--r--sysdeps/unix/sysv/linux/i386/mmap64.S4
-rw-r--r--sysdeps/unix/sysv/linux/i386/setcontext.S11
-rw-r--r--sysdeps/unix/sysv/linux/i386/sysdep.h5
-rw-r--r--sysdeps/unix/sysv/linux/i386/vfork.S4
8 files changed, 42 insertions, 12 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/clone.S b/sysdeps/unix/sysv/linux/i386/clone.S
index 69243d5c8c..54524ec120 100644
--- a/sysdeps/unix/sysv/linux/i386/clone.S
+++ b/sysdeps/unix/sysv/linux/i386/clone.S
@@ -88,6 +88,7 @@ ENTRY (BP_SYM (__clone))
 	cfi_adjust_cfa_offset (4)
 	pushl	%edi
 	cfi_adjust_cfa_offset (4)
+
 	movl	TLS+12(%esp),%esi
 	cfi_rel_offset (esi, 4)
 	movl	PTID+12(%esp),%edx
@@ -102,16 +103,14 @@ ENTRY (BP_SYM (__clone))
 	movl	%ebx, (%ecx)
 #endif
 
+	/* End FDE now, because in the child the unwind info will be
+	   wrong.  */
+	cfi_endproc
+
 	int	$0x80
 	popl	%edi
-	cfi_adjust_cfa_offset (-4)
-	cfi_restore (edi)
 	popl	%esi
-	cfi_adjust_cfa_offset (-4)
-	cfi_restore (esi)
 	popl	%ebx
-	cfi_adjust_cfa_offset (-4)
-	cfi_restore (ebx)
 
 	test	%eax,%eax
 	jl	SYSCALL_ERROR_LABEL
@@ -131,10 +130,8 @@ L(haspid):
 	call	*%ebx
 #ifdef PIC
 	call	L(here)
-	cfi_adjust_cfa_offset (4)
 L(here):
 	popl	%ebx
-	cfi_adjust_cfa_offset (-4)
 	addl	$_GLOBAL_OFFSET_TABLE_+[.-L(here)], %ebx
 #endif
 	movl	%eax, %ebx
@@ -156,6 +153,7 @@ L(nomoregetpid):
 	.previous
 #endif
 
+	cfi_startproc
 PSEUDO_END (BP_SYM (__clone))
 
 weak_alias (BP_SYM (__clone), BP_SYM (clone))
diff --git a/sysdeps/unix/sysv/linux/i386/getcontext.S b/sysdeps/unix/sysv/linux/i386/getcontext.S
index 68541d5d80..76ba6047c1 100644
--- a/sysdeps/unix/sysv/linux/i386/getcontext.S
+++ b/sysdeps/unix/sysv/linux/i386/getcontext.S
@@ -1,5 +1,5 @@
 /* Save current context.
-   Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
@@ -63,12 +63,16 @@ ENTRY(__getcontext)
 
 	/* Save the current signal mask.  */
 	pushl	%ebx
+	cfi_adjust_cfa_offset (4)
+	cfi_rel_offset (ebx, 0)
 	leal	oSIGMASK(%eax), %edx
 	xorl	%ecx, %ecx
 	movl	$SIG_BLOCK, %ebx
 	movl	$__NR_sigprocmask, %eax
 	ENTER_KERNEL
 	popl	%ebx
+	cfi_adjust_cfa_offset (-4)
+	cfi_restore (ebx)
 	cmpl	$-4095, %eax		/* Check %eax for error.  */
 	jae	SYSCALL_ERROR_LABEL	/* Jump to error handler if error.  */
 
diff --git a/sysdeps/unix/sysv/linux/i386/makecontext.S b/sysdeps/unix/sysv/linux/i386/makecontext.S
index ec49b74b9a..03dc648c59 100644
--- a/sysdeps/unix/sysv/linux/i386/makecontext.S
+++ b/sysdeps/unix/sysv/linux/i386/makecontext.S
@@ -1,5 +1,5 @@
 /* Create new context.
-   Copyright (C) 2001,02 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
@@ -68,7 +68,9 @@ ENTRY(__makecontext)
 	   below).  */
 #ifdef PIC
 	call	1f
+	cfi_adjust_cfa_offset (4)
 1:	popl	%ecx
+	cfi_adjust_cfa_offset (-4)
 	addl	$L(exitcode)-1b, %ecx
 	movl	%ecx, (%edx)
 #else
@@ -83,6 +85,7 @@ ENTRY(__makecontext)
 	   the context 'makecontext' manipulated at the time of the
 	   'makecontext' call.  If the pointer is NULL the process must
 	   terminate.  */
+	cfi_endproc
 L(exitcode):
 	/* This removes the parameters passed to the function given to
 	   'makecontext' from the stack.  EBX contains the number of
@@ -108,6 +111,7 @@ L(exitcode):
 	/* The 'exit' call should never return.  In case it does cause
 	   the process to terminate.  */
 	hlt
+	cfi_startproc
 END(__makecontext)
 
 weak_alias(__makecontext, makecontext)
diff --git a/sysdeps/unix/sysv/linux/i386/mmap.S b/sysdeps/unix/sysv/linux/i386/mmap.S
index 9f664de991..10f8bc75a7 100644
--- a/sysdeps/unix/sysv/linux/i386/mmap.S
+++ b/sysdeps/unix/sysv/linux/i386/mmap.S
@@ -26,7 +26,7 @@
 
 ENTRY (__mmap)
 
-/* I don't think it is worthwhile trzing to use mmap2 whenever it
+/* I don't think it is worthwhile trying to use mmap2 whenever it
    is available.  Only use it when we are sure the syscall exists.  */
 #ifdef __ASSUME_MMAP2_SYSCALL
 
@@ -78,6 +78,7 @@ L(skip):
 
 	/* Save registers.  */
 	movl %ebx, %edx
+	cfi_register (ebx, edx)
 
 	movl $SYS_ify(mmap), %eax	/* System call number in %eax.  */
 
@@ -88,6 +89,7 @@ L(skip):
 
 	/* Restore registers.  */
 	movl %edx, %ebx
+	cfi_restore (ebx)
 
 #endif
 
diff --git a/sysdeps/unix/sysv/linux/i386/mmap64.S b/sysdeps/unix/sysv/linux/i386/mmap64.S
index 89d9f5f356..4209453819 100644
--- a/sysdeps/unix/sysv/linux/i386/mmap64.S
+++ b/sysdeps/unix/sysv/linux/i386/mmap64.S
@@ -130,6 +130,7 @@ L(einval):
 3:
 	/* Save registers.  */
 	movl %ebx, %edx
+	cfi_register (ebx, edx)
 
 	cmpl $0, OFFHI-SVRSP(%esp)
 	jne L(einval2)
@@ -143,6 +144,7 @@ L(einval):
 
 	/* Restore registers.  */
 	movl %edx, %ebx
+	cfi_restore (ebx)
 
 	/* If 0 > %eax > -4096 there was an error.  */
 	cmpl $-4096, %eax
@@ -154,8 +156,10 @@ L(pseudo_end):
 #endif
 	ret
 
+	cfi_register (ebx, edx)
 L(einval2):
 	movl %edx, %ebx
+	cfi_restore (ebx)
 	movl $-EINVAL, %eax
 	jmp SYSCALL_ERROR_LABEL
 #endif
diff --git a/sysdeps/unix/sysv/linux/i386/setcontext.S b/sysdeps/unix/sysv/linux/i386/setcontext.S
index 22469b2b85..c493cf9798 100644
--- a/sysdeps/unix/sysv/linux/i386/setcontext.S
+++ b/sysdeps/unix/sysv/linux/i386/setcontext.S
@@ -61,6 +61,13 @@ ENTRY(__setcontext)
 	movl	oEIP(%eax), %ecx
 
 	/* Load the new stack pointer.  */
+	cfi_def_cfa (eax, 0)
+	cfi_offset (edi, oEDI)
+	cfi_offset (esi, oESI)
+	cfi_offset (ebp, oEBP)
+	cfi_offset (ebx, oEBX)
+	cfi_offset (edx, oEDX)
+	cfi_offset (ecx, oECX)
 	movl	oESP(%eax), %esp
 
 	/* Push the return address on the new stack so we can return there.  */
@@ -76,6 +83,10 @@ ENTRY(__setcontext)
 	movl	oECX(%eax), %ecx
 	movl	oEAX(%eax), %eax
 
+	/* End FDE here, we fall into another context.  */
+	cfi_endproc
+	cfi_startproc
+
 	/* The following 'ret' will pop the address of the code and jump
 	   to it.  */
 
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h
index d64d0a3a5c..a9637be33d 100644
--- a/sysdeps/unix/sysv/linux/i386/sysdep.h
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.h
@@ -118,6 +118,7 @@
   .previous
 # else
 #  define SETUP_PIC_REG(reg) \
+  .ifndef __i686.get_pc_thunk.reg;					      \
   .section .gnu.linkonce.t.__i686.get_pc_thunk.reg,"ax",@progbits;	      \
   .globl __i686.get_pc_thunk.reg;					      \
   .hidden __i686.get_pc_thunk.reg;					      \
@@ -127,9 +128,13 @@ __i686.get_pc_thunk.reg:						      \
   ret;									      \
   .size __i686.get_pc_thunk.reg, . - __i686.get_pc_thunk.reg;		      \
   .previous;								      \
+  .endif;								      \
   call __i686.get_pc_thunk.reg
 # endif
 
+# define LOAD_PIC_REG(reg) \
+  SETUP_PIC_REG(reg); addl $_GLOBAL_OFFSET_TABLE_, %e##reg
+
 # if RTLD_PRIVATE_ERRNO
 #  define SYSCALL_ERROR_HANDLER						      \
 0:SETUP_PIC_REG(cx);							      \
diff --git a/sysdeps/unix/sysv/linux/i386/vfork.S b/sysdeps/unix/sysv/linux/i386/vfork.S
index e660e6b70e..eefd4b49cb 100644
--- a/sysdeps/unix/sysv/linux/i386/vfork.S
+++ b/sysdeps/unix/sysv/linux/i386/vfork.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2002, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2002, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Schwab <schwab@gnu.org>.
 
@@ -33,6 +33,7 @@ ENTRY (__vfork)
 
 	/* Pop the return PC value into ECX.  */
 	popl	%ecx
+	cfi_adjust_cfa_offset (-4)
 
 #ifdef SAVE_PID
 	SAVE_PID
@@ -46,6 +47,7 @@ ENTRY (__vfork)
 	   disturbs the branch target cache.  Instead push the return
 	   address back on the stack.  */
 	pushl	%ecx
+	cfi_adjust_cfa_offset (4)
 
 #ifdef RESTORE_PID
 	RESTORE_PID
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-07-13 08:29:56 +0000