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Unified Diff: bfd/cpu-i386.c

Issue 124383005: GDB 7.6.50 (Closed) Base URL: http://git.chromium.org/native_client/nacl-gdb.git@upstream
Patch Set: Created 6 years, 11 months ago
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Index: bfd/cpu-i386.c
diff --git a/bfd/cpu-i386.c b/bfd/cpu-i386.c
index 4cb59ed8981527ac94896d8054184c97bf96f9ad..2a6bb97b944b37dbde728a07b937928a839e38ee 100644
--- a/bfd/cpu-i386.c
+++ b/bfd/cpu-i386.c
@@ -1,6 +1,6 @@
/* BFD support for the Intel 386 architecture.
Copyright 1992, 1994, 1995, 1996, 1998, 2000, 2001, 2002, 2004, 2005,
- 2007, 2009, 2010, 2011
+ 2007, 2009, 2010, 2011, 2013
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
@@ -50,7 +50,7 @@ bfd_arch_i386_fill (bfd_size_type count, bfd_boolean code,
bfd_boolean long_nop)
{
/* nop */
- static const char nop_1[] = { 0x90 };
+ static const char nop_1[] = { 0x90 };
/* xchg %ax,%ax */
static const char nop_2[] = { 0x66, 0x90 };
/* nopl (%[re]ax) */
@@ -119,6 +119,71 @@ bfd_arch_i386_long_nop_fill (bfd_size_type count,
return bfd_arch_i386_fill (count, code, TRUE);
}
+/* Fill the buffer with zero, or one-byte nop instructions if CODE is TRUE. */
+
+static void *
+bfd_arch_i386_onebyte_nop_fill (bfd_size_type count,
+ bfd_boolean is_bigendian ATTRIBUTE_UNUSED,
+ bfd_boolean code)
+{
+ void *fill = bfd_malloc (count);
+ if (fill != NULL)
+ memset (fill, code ? 0x90 : 0, count);
+ return fill;
+}
+
+
+static const bfd_arch_info_type bfd_x64_32_nacl_arch =
+{
+ 64, /* 64 bits in a word */
+ 64, /* 64 bits in an address */
+ 8, /* 8 bits in a byte */
+ bfd_arch_i386,
+ bfd_mach_x64_32_nacl,
+ "i386",
+ "i386:x64-32:nacl",
+ 3,
+ FALSE,
+ bfd_i386_compatible,
+ bfd_default_scan,
+ bfd_arch_i386_onebyte_nop_fill,
+ NULL
+};
+
+static const bfd_arch_info_type bfd_x86_64_nacl_arch =
+{
+ 64, /* 64 bits in a word */
+ 64, /* 64 bits in an address */
+ 8, /* 8 bits in a byte */
+ bfd_arch_i386,
+ bfd_mach_x86_64_nacl,
+ "i386",
+ "i386:x86-64:nacl",
+ 3,
+ FALSE,
+ bfd_i386_compatible,
+ bfd_default_scan,
+ bfd_arch_i386_onebyte_nop_fill,
+ &bfd_x64_32_nacl_arch
+};
+
+const bfd_arch_info_type bfd_i386_nacl_arch =
+{
+ 32, /* 32 bits in a word */
+ 32, /* 32 bits in an address */
+ 8, /* 8 bits in a byte */
+ bfd_arch_i386,
+ bfd_mach_i386_i386_nacl,
+ "i386",
+ "i386:nacl",
+ 3,
+ TRUE,
+ bfd_i386_compatible,
+ bfd_default_scan,
+ bfd_arch_i386_onebyte_nop_fill,
+ &bfd_x86_64_nacl_arch
+};
+
static const bfd_arch_info_type bfd_x64_32_arch_intel_syntax =
{
64, /* 64 bits in a word */
@@ -133,7 +198,7 @@ static const bfd_arch_info_type bfd_x64_32_arch_intel_syntax =
bfd_i386_compatible,
bfd_default_scan,
bfd_arch_i386_long_nop_fill,
- 0
+ &bfd_i386_nacl_arch
};
static const bfd_arch_info_type bfd_x86_64_arch_intel_syntax =
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