From 33a7a55d39c040ba09af2d69f7fa9cf8e6f84c91 Mon Sep 17 00:00:00 2001
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From: Khem Raj <raj.khem@gmail.com>
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Date: Fri, 29 Mar 2013 09:22:00 +0400
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Subject: [PATCH] cpp: honor sysroot.
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Currently, if the gcc toolchain is relocated and installed from sstate, then you try and compile
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preprocessed source (.i or .ii files), the compiler will try and access the builtin sysroot location
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rather than the --sysroot option specified on the commandline. If access to that directory is
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permission denied (unreadable), gcc will error.
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This happens when ccache is in use due to the fact it uses preprocessed source files.
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The fix below adds %I to the cpp-output spec macro so the default substitutions for -iprefix,
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-isystem, -isysroot happen and the correct sysroot is used.
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[YOCTO #2074]
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RP 2012/04/13
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Upstream-Status: Pending
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---
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gcc/cp/lang-specs.h | 2 +-
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gcc/gcc.c | 2 +-
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2 files changed, 2 insertions(+), 2 deletions(-)
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diff --git a/gcc/cp/lang-specs.h b/gcc/cp/lang-specs.h
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index 8902ae1d2ed..e99e2fcd6ad 100644
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--- a/gcc/cp/lang-specs.h
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+++ b/gcc/cp/lang-specs.h
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@@ -116,7 +116,7 @@ along with GCC; see the file COPYING3. If not see
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{".ii", "@c++-cpp-output", 0, 0, 0},
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{"@c++-cpp-output",
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"%{!E:%{!M:%{!MM:"
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- " cc1plus -fpreprocessed %i %(cc1_options) %2"
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+ " cc1plus -fpreprocessed %i %I %(cc1_options) %2"
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" %{!fsyntax-only:"
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" %{fmodule-only:%{!S:-o %g.s%V}}"
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" %{!fmodule-only:%{!fmodule-header*:%(invoke_as)}}}"
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diff --git a/gcc/gcc.c b/gcc/gcc.c
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index 1bc45285384..8737bae5353 100644
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--- a/gcc/gcc.c
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+++ b/gcc/gcc.c
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@@ -1470,7 +1470,7 @@ static const struct compiler default_compilers[] =
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%W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
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{".i", "@cpp-output", 0, 0, 0},
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{"@cpp-output",
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- "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
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+ "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %I %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
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{".s", "@assembler", 0, 0, 0},
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{"@assembler",
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"%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
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