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2003-04-05  Roland McGrath  <roland@redhat.com>

	* sysdeps/unix/sysv/linux/i386/setcontext.S: Rewrite to avoid writing
	below the stack pointer even if switching to the same context we are
	running right now.

	* catgets/gencat.c (read_input_file): Make sure that \n is not
	alone on the line before testing for continuation.

	* math/test-tgmath.c (compile_test): Initialize c.
This commit is contained in:
Ulrich Drepper 2003-04-05 22:03:35 +00:00
parent ee6bf14d9e
commit a5392bed09
3 changed files with 29 additions and 33 deletions
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11
ChangeLog
View File

@ -1,6 +1,15 @@
2003-04-05 Roland McGrath <roland@redhat.com>
* sysdeps/unix/sysv/linux/i386/setcontext.S: Rewrite to avoid writing
below the stack pointer even if switching to the same context we are
running right now.
2003-04-05 Ulrich Drepper <drepper@redhat.com>
* math/test-tgmath.c (F): Initialize c.
* catgets/gencat.c (read_input_file): Make sure that \n is not
alone on the line before testing for continuation.
* math/test-tgmath.c (compile_test): Initialize c.
2003-04-05 Alexandre Oliva <aoliva@redhat.com>

2
catgets/gencat.c
View File

@ -333,7 +333,7 @@ read_input_file (struct catalog *current, const char *fname)
/* There might be more than one backslash at the end of
the line. Only if there is an odd number of them is
the line continued. */
if (buf[act_len - 1] == '\\')
if (act_len > 0 && buf[act_len - 1] == '\\')
{
int temp_act_len = act_len;

49
sysdeps/unix/sysv/linux/i386/setcontext.S
View File

@ -1,5 +1,5 @@
/* Install given context.
Copyright (C) 2001, 2002 Free Software Foundation, Inc.
Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
@ -53,39 +53,26 @@ ENTRY(__setcontext)
movl oFS(%eax), %ecx
movw %cx, %fs
/* Fetch the address to return to. */
movl oEIP(%eax), %ecx
/* Load the new stack pointer. */
movl oESP(%eax), %ecx
/* Make room for 8 registers and the return address. We will load
the values from the stack. */
subl $36, %ecx
movl oESP(%eax), %esp
/* Move the values of all the 32-bit registers (except ESP) on
the stack. This happens in the form the 'popa' instruction
expects it. Before this block put the address of the code
to execute. */
movl oEDI(%eax), %ebx
movl oESI(%eax), %edx
movl oEBP(%eax), %esi
movl oEBX(%eax), %edi
movl %ebx, (%ecx)
movl %edx, 4(%ecx)
movl %esi, 8(%ecx)
movl %edi, 16(%ecx)
movl oEDX(%eax), %ebx
movl oECX(%eax), %edx
movl oEAX(%eax), %esi
movl oEIP(%eax), %edi
movl %ebx, 20(%ecx)
movl %edx, 24(%ecx)
movl %esi, 28(%ecx)
movl %edi, 32(%ecx)
/* Push the return address on the new stack so we can return there. */
pushl %ecx
/* Set the new stack address. The stack points now to the block
we put the register content in. */
movl %ecx, %esp
/* Restore the register content. */
popa
/* The following 'ret' will pop the addres of the code and jump
/* Load the values of all the 32-bit registers (except ESP).
Since we are loading from EAX, it must be last. */
movl oEDI(%eax), %edi
movl oESI(%eax), %esi
movl oEBP(%eax), %ebp
movl oEBX(%eax), %ebx
movl oEDX(%eax), %edx
movl oECX(%eax), %ecx
movl oEAX(%eax), %eax
/* The following 'ret' will pop the address of the code and jump
to it. */
L(pseudo_end):