patches/gcc/4.2.3/210-libmudflap-susv3-legacy.patch
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Wed Jun 08 15:47:43 2011 +0200 (2011-06-08)
changeset 2508 9e2761e59a75
parent 431 8bde4c6ea47a
permissions -rw-r--r--
debug/cross-gdb: check host dependencies

Cross-gdb depends on expat and python. If either is missing, cross-gdb will
build successfully, but lacking some features.

Especially, if expat is missing, cross-gdb will be unable to parse the target
description, which may lead to runtime malfunctions and the following GDB
warning:
"Can not parse XML target description; XML support was disabled at compile time"

Hence, expat should be considered mandatory.

On the other hand, the features missing without python are not critical, so
python should not be considered mandatory.

This patch does the following:
- At configure time, warn the user if either expat or python is missing.
- In menuconfig, disable the static build options regarding cross-gdb if no
static version of expat is available, and disable cross-gdb if expat is
missing.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
[yann.morin.1998@anciens.enib.fr: add comment for impossible static cross-gdb]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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diff -durN gcc-4.2.1.orig/libmudflap/mf-hooks2.c gcc-4.2.1/libmudflap/mf-hooks2.c
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--- gcc-4.2.1.orig/libmudflap/mf-hooks2.c	2005-09-23 23:58:39.000000000 +0200
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+++ gcc-4.2.1/libmudflap/mf-hooks2.c	2007-08-03 20:35:09.000000000 +0200
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@@ -427,7 +427,7 @@
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 {
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   TRACE ("%s\n", __PRETTY_FUNCTION__);
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   MF_VALIDATE_EXTENT(s, n, __MF_CHECK_WRITE, "bzero region");
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-  bzero (s, n);
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+  memset (s, 0, n);
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 }
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@@ -437,7 +437,7 @@
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   TRACE ("%s\n", __PRETTY_FUNCTION__);
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   MF_VALIDATE_EXTENT(src, n, __MF_CHECK_READ, "bcopy src");
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   MF_VALIDATE_EXTENT(dest, n, __MF_CHECK_WRITE, "bcopy dest");
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-  bcopy (src, dest, n);
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+  memmove (dest, src, n);
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 }
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@@ -447,7 +447,7 @@
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   TRACE ("%s\n", __PRETTY_FUNCTION__);
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   MF_VALIDATE_EXTENT(s1, n, __MF_CHECK_READ, "bcmp 1st arg");
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   MF_VALIDATE_EXTENT(s2, n, __MF_CHECK_READ, "bcmp 2nd arg");
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-  return bcmp (s1, s2, n);
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+  return n == 0 ? 0 : memcmp (s1, s2, n);
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 }
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@@ -456,7 +456,7 @@
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   size_t n = strlen (s);
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   TRACE ("%s\n", __PRETTY_FUNCTION__);
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   MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "index region");
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-  return index (s, c);
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+  return strchr (s, c);
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 }
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@@ -465,7 +465,7 @@
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   size_t n = strlen (s);
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   TRACE ("%s\n", __PRETTY_FUNCTION__);
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   MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "rindex region");
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-  return rindex (s, c);
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+  return strrchr (s, c);
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 }
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 /* XXX:  stpcpy, memccpy */