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From 303cc9292cc0a1bd7bae994dd1e86197fb94068d Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Fri, 29 Mar 2013 09:22:00 +0400
Subject: [PATCH] cpp: honor sysroot.
Currently, if the gcc toolchain is relocated and installed from sstate, then you try and compile
preprocessed source (.i or .ii files), the compiler will try and access the builtin sysroot location
rather than the --sysroot option specified on the commandline. If access to that directory is
permission denied (unreadable), gcc will error.
This happens when ccache is in use due to the fact it uses preprocessed source files.
The fix below adds %I to the cpp-output spec macro so the default substitutions for -iprefix,
-isystem, -isysroot happen and the correct sysroot is used.
[YOCTO #2074]
RP 2012/04/13
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Upstream-Status: Pending
---
gcc/cp/lang-specs.h | 2 +-
gcc/gcc.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/gcc/cp/lang-specs.h b/gcc/cp/lang-specs.h
index 0ad4a33b93e..16c744f4f90 100644
--- a/gcc/cp/lang-specs.h
+++ b/gcc/cp/lang-specs.h
@@ -66,5 +66,5 @@ along with GCC; see the file COPYING3. If not see
{".ii", "@c++-cpp-output", 0, 0, 0},
{"@c++-cpp-output",
"%{!E:%{!M:%{!MM:"
- " cc1plus -fpreprocessed %i %(cc1_options) %2"
+ " cc1plus -fpreprocessed %i %I %(cc1_options) %2"
" %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
diff --git a/gcc/gcc.c b/gcc/gcc.c
index 39b1635651a..e2e0bcee9b2 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -1351,7 +1351,7 @@ static const struct compiler default_compilers[] =
%W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
{".i", "@cpp-output", 0, 0, 0},
{"@cpp-output",
- "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+ "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %I %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
{".s", "@assembler", 0, 0, 0},
{"@assembler",
"%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
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