klibc: Fix build with musl

klibc failed to build with armv7+ when using thumb2
it needed to resepct TUNE_CCARGS

Add patches to fix build with musl, to sort out
the linux header maze.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

5 files changed, 200 insertions, 11 deletions

diff --git a/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-Define-in_-structs-for-non-glibc-system-libs.patch b/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-Define-in_-structs-for-non-glibc-system-libs.patch
new file mode 100644
index 0000000000..8d1ec69ae9
--- /dev/null
+++ b/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-Define-in_-structs-for-non-glibc-system-libs.patch
@@ -0,0 +1,85 @@
+From f414dea1316a48aba3e8e293201ebd51652d3ef4 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sun, 9 Jul 2017 15:17:29 -0700
+Subject: [PATCH] Define in_* structs for non-glibc system libs
+
+These defines and structs are required to be coming from
+userspace netinet/in.h, which is being overridden in klibc
+however, libc-compat.h from kernel is only written keeping
+glibc in mind, and does not provide adequate guards for musl
+to infer that these structs should be defined in linux/in.h
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ usr/include/netinet/in.h | 33 +++++++++++++++++++++++++++++++++
+ 1 file changed, 33 insertions(+)
+
+Index: git/usr/include/netinet/in.h
+===================================================================
+--- git.orig/usr/include/netinet/in.h
++++ git/usr/include/netinet/in.h
+@@ -5,6 +5,42 @@
+ #ifndef _NETINET_IN_H
+ #define _NETINET_IN_H
+ 
++#ifndef __GLIBC__
++#include <linux/libc-compat.h>
++
++#undef __UAPI_DEF_IN_ADDR
++#undef __UAPI_DEF_IN_IPPROTO
++#undef __UAPI_DEF_IN_PKTINFO
++#undef __UAPI_DEF_IP_MREQ
++#undef __UAPI_DEF_SOCKADDR_IN
++#undef __UAPI_DEF_IN_CLASS
++#undef __UAPI_DEF_IN6_ADDR
++#undef __UAPI_DEF_IN6_ADDR_ALT
++#undef __UAPI_DEF_SOCKADDR_IN6
++#undef __UAPI_DEF_IPV6_MREQ
++#undef __UAPI_DEF_IPPROTO_V6
++#undef __UAPI_DEF_IPV6_OPTIONS
++#undef __UAPI_DEF_IN6_PKTINFO
++#undef __UAPI_DEF_IP6_MTUINFO
++#undef __UAPI_DEF_IF_IFREQ
++
++#define __UAPI_DEF_IN_ADDR      1
++#define __UAPI_DEF_IN_IPPROTO   1
++#define __UAPI_DEF_IN_PKTINFO   1
++#define __UAPI_DEF_IP_MREQ      1
++#define __UAPI_DEF_SOCKADDR_IN  1
++#define __UAPI_DEF_IN_CLASS     1
++#define __UAPI_DEF_IN6_ADDR     1
++#define __UAPI_DEF_IN6_ADDR_ALT 1
++#define __UAPI_DEF_SOCKADDR_IN6 1
++#define __UAPI_DEF_IPV6_MREQ    1
++#define __UAPI_DEF_IPPROTO_V6   1
++#define __UAPI_DEF_IPV6_OPTIONS 1
++#define __UAPI_DEF_IN6_PKTINFO  1
++#define __UAPI_DEF_IP6_MTUINFO  1
++#define __UAPI_DEF_IF_IFREQ     1
++#endif
++
+ #include <klibc/extern.h>
+ #include <stdint.h>
+ #include <endian.h>		/* Must be included *before* <linux/in.h> */
+Index: git/usr/include/net/if.h
+===================================================================
+--- git.orig/usr/include/net/if.h
++++ git/usr/include/net/if.h
+@@ -1,6 +1,17 @@
+ #ifndef _NET_IF_H
+ #define _NET_IF_H
+ 
++#ifndef __GLIBC__
++#include <linux/libc-compat.h>
++#undef __UAPI_DEF_IF_IFREQ
++#define __UAPI_DEF_IF_IFREQ            1
++#undef __UAPI_DEF_IF_IFNAMSIZ
++#define __UAPI_DEF_IF_IFNAMSIZ         1
++#undef __UAPI_DEF_IF_IFMAP
++#define __UAPI_DEF_IF_IFMAP            1
++#undef __UAPI_DEF_IF_NET_DEVICE_FLAGS
++#define __UAPI_DEF_IF_NET_DEVICE_FLAGS 1
++#endif
+ #include <sys/socket.h>
+ #include <sys/types.h>
+ #include <linux/if.h>
diff --git a/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-dash-Specify-format-string-in-fmtstr.patch b/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-dash-Specify-format-string-in-fmtstr.patch
new file mode 100644
index 0000000000..ae8c1f11a0
--- /dev/null
+++ b/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-dash-Specify-format-string-in-fmtstr.patch
@@ -0,0 +1,31 @@
+From 2fff607fd0b5550e5072a6fffcbb01c29d5207d2 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sun, 9 Jul 2017 13:51:25 -0700
+Subject: [PATCH] dash: Specify format string in fmtstr()
+
+Fixes build with hardening flags
+
+usr/dash/jobs.c:429:3: error: format not a string literal and no format arguments [-Werror=format-security]
+   col = fmtstr(s, 32, strsignal(st));
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ usr/dash/jobs.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/usr/dash/jobs.c b/usr/dash/jobs.c
+index 009bbfee..299bcacc 100644
+--- a/usr/dash/jobs.c
++++ b/usr/dash/jobs.c
+@@ -426,7 +426,7 @@ sprint_status(char *s, int status, int sigonly)
+ 				goto out;
+ #endif
+ 		}
+-		col = fmtstr(s, 32, strsignal(st));
++		col = fmtstr(s, 32, "%s", strsignal(st));
+ #ifdef WCOREDUMP
+ 		if (WCOREDUMP(status)) {
+ 			col += fmtstr(s + col, 16, " (core dumped)");
+-- 
+2.13.2
+
diff --git a/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-include-linux-sysinfo.h-directly.patch b/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-include-linux-sysinfo.h-directly.patch
new file mode 100644
index 0000000000..1b033acc42
--- /dev/null
+++ b/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-include-linux-sysinfo.h-directly.patch
@@ -0,0 +1,32 @@
+From ab060a57b41f989665ade20e813bbcb67f91f1f2 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sun, 9 Jul 2017 15:56:28 -0700
+Subject: [PATCH] include linux/sysinfo.h directly
+
+This is done to avoid the kernel header linux/kernel.h to use
+__GLIBC__ define to decide on if libc implements sysinfo() API
+or not. Kernel headers should be independent of such assumptions
+but until its done in right place, change the local header
+override to avoid this assumption
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ usr/include/sys/sysinfo.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/usr/include/sys/sysinfo.h b/usr/include/sys/sysinfo.h
+index dba68dc6..d145c0b1 100644
+--- a/usr/include/sys/sysinfo.h
++++ b/usr/include/sys/sysinfo.h
+@@ -5,7 +5,7 @@
+ #ifndef _SYS_SYSINFO_H
+ #define _SYS_SYSINFO_H
+ 
+-#include <linux/kernel.h>
++#include <linux/sysinfo.h>
+ 
+ extern int sysinfo(struct sysinfo *info);
+ 
+-- 
+2.13.2
+
diff --git a/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-mkfifo-Implement-mkfifo.patch b/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-mkfifo-Implement-mkfifo.patch
new file mode 100644
index 0000000000..9791412e48
--- /dev/null
+++ b/meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-mkfifo-Implement-mkfifo.patch
@@ -0,0 +1,29 @@
+From b4e120f5edf06e6df138b1804a8b5180584cea6b Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 10 Jul 2017 20:42:50 -0700
+Subject: [PATCH] mkfifo: Implement mkfifo
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ usr/utils/mkfifo.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/usr/utils/mkfifo.c b/usr/utils/mkfifo.c
+index 5a758b2a..f1f577e6 100644
+--- a/usr/utils/mkfifo.c
++++ b/usr/utils/mkfifo.c
+@@ -26,6 +26,11 @@ static int make_fifo(char *dir)
+ 	return 0;
+ }
+ 
++int mkfifo (const char *__p, mode_t __m)
++{
++	return mknod(__p, (__m & ~S_IFMT) | S_IFIFO, (dev_t) 0);
++}
++
+ int main(int argc, char *argv[])
+ {
+ 	int c, ret = 0;
+-- 
+2.13.2
+
diff --git a/meta-initramfs/recipes-devtools/klibc/klibc.inc b/meta-initramfs/recipes-devtools/klibc/klibc.inc
index e039cb2c1c..be59aa4436 100644
--- a/meta-initramfs/recipes-devtools/klibc/klibc.inc
+++ b/meta-initramfs/recipes-devtools/klibc/klibc.inc
@@ -7,17 +7,23 @@ LIC_FILES_CHKSUM = "file://usr/klibc/LICENSE;md5=d75181f10e998c21eb147f6d2e43ce8
 DEPENDS = "linux-libc-headers perl-native"
 SRCREV = "4d19974d7020488f63651244e1f9f51727c3f66c"
 
-SRC_URI = "git://git.kernel.org/pub/scm/libs/klibc/klibc.git"
-SRC_URI_append_linux-gnueabi = " file://klibc-config-eabi.patch \
-                                 file://armv4-fix-v4bx.patch \
-                                 "
-SRC_URI_append_linux-uclibceabi = " file://klibc-config-eabi.patch \
-                                    file://armv4-fix-v4bx.patch \
-                                    "
-SRC_URI += "file://klibc-linux-libc-dev.patch \
-            file://staging.patch \
-            file://klcc-consider-sysroot.patch \
-            "
+SRC_URI = "git://git.kernel.org/pub/scm/libs/klibc/klibc.git \
+           ${ARMPATCHES} \
+           file://klibc-linux-libc-dev.patch \
+           file://staging.patch \
+           file://klcc-consider-sysroot.patch \
+           file://0001-dash-Specify-format-string-in-fmtstr.patch \
+           file://0001-Define-in_-structs-for-non-glibc-system-libs.patch \
+           file://0001-include-linux-sysinfo.h-directly.patch \
+           file://0001-mkfifo-Implement-mkfifo.patch \
+"
+
+ARMPATCHES ?= ""
+
+ARMPATCHES_arm = "file://klibc-config-eabi.patch \
+                  file://armv4-fix-v4bx.patch \
+                 "
+
 
 S = "${WORKDIR}/git"
 
@@ -30,9 +36,12 @@ EXTRA_OEMAKE = "'KLIBCARCH=${KLIBC_ARCH}' \
                 'INSTALLROOT=${D}' \
                 'INSTALLDIR=${libdir}/klibc' \
                 'SHLIBDIR=${libdir}' \
+                '${KLIBCTHUMB}' \
+                'KLIBCOPTFLAGS=${TUNE_CCARGS}' \
                 "
 
 export FIX_ARMV4_EABI_BX = "${FIX_V4BX}"
+KLIBCTHUMB = "${@['', 'CONFIG_KLIBC_THUMB=y'][(d.getVar('ARM_INSTRUCTION_SET') == 'thumb')]}"
 
 do_configure () {
     ln -sf "${STAGING_DIR_TARGET}${exec_prefix}" linux
@@ -51,3 +60,6 @@ KLIBC_ARCH_x86-64 = "x86_64"
 KLIBC_ARCH_powerpc = "ppc"
 KLIBC_ARCH_powerpc64 = "ppc64"
 THIS_LIBKLIBC = "libklibc (= ${PV}-${PR})"
+
+SECURITY_CFLAGS = "-fno-PIE -no-pie"
+SECURITY_LDFLAGS = "-no-pie"