[coreboot-gerrit] New patch to review for coreboot: 16ab22d libpayload: Don't sneak in compiler includes
Stefan Reinauer (stefan.reinauer@coreboot.org)
gerrit at coreboot.org
Wed Apr 10 00:45:53 CEST 2013
Stefan Reinauer (stefan.reinauer at coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3058
-gerrit
commit 16ab22dccc3907c7b98544c258cd5d78089a6336
Author: Stefan Reinauer <reinauer at chromium.org>
Date: Mon Apr 8 16:55:47 2013 -0700
libpayload: Don't sneak in compiler includes
The way we got to include the compiler includes was kind of whacky.
Instead of mixing in potentially problematic headers, make libpayload
self-contained by adding some missing header files. Also clean up
conflicting definitions of size_t throughout the tree.
Signed-off-by: Stefan Reinauer <reinauer at google.com>
BUG=none
TEST=emerge-link libpayload depthcharge works fine
BRANCH=none
Change-Id: I0ad1194de1a00b7133c5477c00eb167d63a2ee85
Reviewed-on: https://gerrit.chromium.org/gerrit/47608
Reviewed-by: Ronald G. Minnich <rminnich at chromium.org>
Commit-Queue: Stefan Reinauer <reinauer at google.com>
Tested-by: Stefan Reinauer <reinauer at google.com>
---
payloads/libpayload/Makefile.inc | 4 +---
payloads/libpayload/include/armv7/arch/types.h | 3 ---
payloads/libpayload/include/stdarg.h | 13 +++++++++++++
payloads/libpayload/include/stddef.h | 11 +++++++++++
payloads/libpayload/include/unistd.h | 2 --
payloads/libpayload/include/x86/arch/types.h | 3 ---
6 files changed, 25 insertions(+), 11 deletions(-)
diff --git a/payloads/libpayload/Makefile.inc b/payloads/libpayload/Makefile.inc
index 9e6dc75..7f8889e 100644
--- a/payloads/libpayload/Makefile.inc
+++ b/payloads/libpayload/Makefile.inc
@@ -53,9 +53,7 @@ subdirs-$(CONFIG_CURSES) += curses
subdirs-$(CONFIG_CBFS) += libcbfs
subdirs-$(CONFIG_LZMA) += liblzma
-CC_INCLUDE = $(shell $(CC) -print-search-dirs | head -n 1 | cut -d' ' -f2)include
-
-INCLUDES := -Iinclude -Iinclude/$(ARCHDIR-y) -I$(obj) -I$(CC_INCLUDE)
+INCLUDES := -Iinclude -Iinclude/$(ARCHDIR-y) -I$(obj)
CFLAGS = $(EXTRA_CFLAGS) $(INCLUDES) -Os -pipe -nostdinc
CFLAGS += -nostdlib -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
CFLAGS += -Wwrite-strings -Wredundant-decls -Wno-trigraphs
diff --git a/payloads/libpayload/include/armv7/arch/types.h b/payloads/libpayload/include/armv7/arch/types.h
index bb40257..1bd815b 100644
--- a/payloads/libpayload/include/armv7/arch/types.h
+++ b/payloads/libpayload/include/armv7/arch/types.h
@@ -53,9 +53,6 @@ typedef signed long long s64;
typedef long time_t;
typedef long suseconds_t;
-typedef unsigned long size_t;
-typedef long ssize_t;
-
#ifndef NULL
#define NULL ((void *)0)
#endif
diff --git a/payloads/libpayload/include/stdarg.h b/payloads/libpayload/include/stdarg.h
index 077645f..1d7ac05 100644
--- a/payloads/libpayload/include/stdarg.h
+++ b/payloads/libpayload/include/stdarg.h
@@ -31,7 +31,20 @@
#define _LIBPAYLOAD_STDARG_H
#include <stddef.h>
+
+/* With GCC we use -nostdinc -ffreestanding to keep out system includes.
+ * Unfortunately this also gets us rid of the _compiler_ includes, like
+ * stdarg.h. To work around the issue, we define varargs directly here.
+ * On LLVM we can still just include stdarg.h.
+ */
+#ifdef __GNUC__
+#define va_start(v,l) __builtin_va_start(v,l)
+#define va_end(v) __builtin_va_end(v)
+#define va_arg(v,l) __builtin_va_arg(v,l)
+typedef __builtin_va_list va_list;
+#else
#include_next <stdarg.h>
+#endif
/**
* @defgroup vprintf Varargs print functions
diff --git a/payloads/libpayload/include/stddef.h b/payloads/libpayload/include/stddef.h
new file mode 100644
index 0000000..91ae782
--- /dev/null
+++ b/payloads/libpayload/include/stddef.h
@@ -0,0 +1,11 @@
+
+#include <arch/types.h>
+
+#ifndef __SIZE_TYPE__
+#define __SIZE_TYPE__ unsigned long
+#endif
+typedef __SIZE_TYPE__ size_t;
+typedef long ssize_t;
+
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
+
diff --git a/payloads/libpayload/include/unistd.h b/payloads/libpayload/include/unistd.h
index 1e39aeb..6b4dcf4 100644
--- a/payloads/libpayload/include/unistd.h
+++ b/payloads/libpayload/include/unistd.h
@@ -32,8 +32,6 @@
#include <stddef.h>
-typedef ptrdiff_t ssize_t;
-
int getpagesize(void);
#endif
diff --git a/payloads/libpayload/include/x86/arch/types.h b/payloads/libpayload/include/x86/arch/types.h
index bb40257..1bd815b 100644
--- a/payloads/libpayload/include/x86/arch/types.h
+++ b/payloads/libpayload/include/x86/arch/types.h
@@ -53,9 +53,6 @@ typedef signed long long s64;
typedef long time_t;
typedef long suseconds_t;
-typedef unsigned long size_t;
-typedef long ssize_t;
-
#ifndef NULL
#define NULL ((void *)0)
#endif
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