Fixes some bugs with memory setup and halt-sled allocation and...

src/trusted/service_runtime/arch/x86_32/nacl_text_pad_test.S

+/*
+ * Copyright 2010 The Native Client Authors.  All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can
+ * be found in the LICENSE file.
+ */
+#include "native_client/src/trusted/service_runtime/include/bits/nacl_syscalls.h"
+#include "native_client/src/trusted/service_runtime/nacl_config.h"
+
+        .text
+start_of_text:
+
+        .p2align NACLENTRYALIGN
+write_num_10:
+        movl 8(%esp), %eax  /* number to be printed */
+        pushl %ebp
+        pushl %ebx          /* callee saved */
+        pushl %edi          /* callee saved */
+        movl %esp, %ebp
+        subl $0x10, %esp    /* buffer[0x10] */
+        movl %ebp, %ebx     /* %ebx = &buffer[0x10] (off the end) */
+        xorl %ecx, %ecx     /* %ecx = 0;  (byte count) */
+
+        movl $10, %edi
+do_digit_10:
+        xorl %edx, %edx
+        divl %edi           /* %edx:%eax div_mod 10 */
+        addl $'0', %edx     /* *--%ebx = remainder + '0' */
+        subl $1, %ebx
+        movb %dl, (%ebx)
+        addl $1, %ecx       /* ++byte_count */
+        andl %eax, %eax
+        jnz do_digit_10
+
+        pushl %ecx
+        pushl %ebx
+        movl 0x10(%ebp), %eax
+        pushl %eax
+        call NACL_SYSCALL_ADDR(NACL_sys_write)
+        addl $12, %esp
+
+        movl %ebp, %esp
+        popl %edi
+        popl %ebx
+        popl %ebp
+
+        popl %ecx
+        nacljmp %ecx
+
+write_num_16:
+        movl 8(%esp), %eax  /* number to be printed */
+        pushl %ebp
+        pushl %ebx
+        movl %esp, %ebp
+        subl $0x10, %esp
+        movl %ebp, %ebx
+        xorl %ecx, %ecx
+
+do_digit_16:
+        movl %eax, %edx
+        andl $0xf, %edx
+        addl $'0', %edx
+        cmpl $(10 + '0'), %edx
+        jl do_digit_not_upper
+        addl $('a'-'0'-10), %edx
+do_digit_not_upper:
+        subl $1, %ebx
+        movb %dl, (%ebx)
+        addl $1, %ecx
+        shrl $4, %eax
+        jnz do_digit_16
+
+        pushl %ecx
+        pushl %ebx
+        movl 0xc(%ebp), %eax
+        pushl %eax
+        call NACL_SYSCALL_ADDR(NACL_sys_write)
+        addl $12, %esp
+
+        movl %ebp, %esp
+        popl %ebx
+        popl %ebp
+
+        popl %ecx
+        nacljmp %ecx
+
+        .p2align NACLENTRYALIGN
+write_char:
+        movl 4(%esp), %eax
+        movl 8(%esp), %edx
+        push %ebp
+        movl %esp, %ebp
+        subl $4, %esp
+        lea -4(%ebp), %ecx
+        movb %dl, (%ecx)
+        pushl $1
+        pushl %ecx
+        pushl %eax
+        call NACL_SYSCALL_ADDR(NACL_sys_write)
+        addl $12, %esp
+        movl %ebp, %esp
+        popl %ebp
+        popl %ecx
+        nacljmp %ecx
+
+        .p2align NACLENTRYALIGN
+        .globl _start
+_start:
+        pushl $1234567
+        pushl $1
+        call write_num_10
+        addl $8, %esp
+
+        pushl $'\n'
+        pushl $1
+        call write_char
+        addl $8, %esp
+
+        pushl $0xdeadbeef
+        pushl $1
+        call write_num_16
+        addl $8, %esp
+
+        pushl $'\n'
+        pushl $1
+        call write_char
+        addl $8, %esp
+
+        pushl $end_of_text
+        pushl $1
+        call write_num_16
+        addl $8, %esp
+        pushl $'\n'
+        pushl $1
+        call write_char
+        addl $8, %esp
+
+        pushl $0
+        call NACL_SYSCALL_ADDR(NACL_sys_sysbrk)
+        addl $4, %esp
+
+        xorl %edi, %edi  /* edi holds our eventual exit status */
+        cmpl $EXPECTED_BREAK, %eax
+        je brk_sane
+        movl $1, %edi
+brk_sane:
+
+        pushl %eax
+        pushl $1
+        call write_num_16
+        addl $8, %esp
+
+        pushl $'\n'
+        pushl $1
+        call write_char
+        addl $8, %esp
+
+        pushl $EXPECTED_BREAK
+        pushl $1
+        call write_num_16
+        addl $8, %esp
+
+        pushl $'\n'
+        pushl $1
+        call write_char
+        addl $8, %esp
+
+#if EXPECTED_RODATA != 0
+        pushl $12
+        pushl $ro_str
+        pushl $1
+        call NACL_SYSCALL_ADDR(NACL_sys_write)
+        addl $12, %esp
+
+        pushl $ro_str
+        pushl $1
+        call write_num_16
+        addl $8, %esp
+
+        pushl $'\n'
+        pushl $1
+        call write_char
+        addl $8, %esp
+
+        leal ro_str, %eax
+        cmpl $EXPECTED_RODATA, %eax
+        je ro_sane
+        movl $1, %edi
+ro_sane:
+
+        pushl $EXPECTED_RODATA
+        pushl $1
+        call write_num_16
+        addl $8, %esp
+
+        pushl $'\n'
+        pushl $1
+        call write_char
+        addl $8, %esp
+#endif
+
+        pushl %edi
+        call NACL_SYSCALL_ADDR(NACL_sys_exit)
+
+        .skip TEXT_EXTEND - (. - start_of_text), 0xf4
+end_of_text:
+
+#if EXPECTED_RODATA != 0
+        .section .rodata
+ro_str: .ascii "Hello world\n"
+        /*      123456789012 */
+#endif