diff options
| -rw-r--r-- | package/boot/uboot-fritz4040/patches/120-net-Use-packed-structures-for-networking.patch | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/package/boot/uboot-fritz4040/patches/120-net-Use-packed-structures-for-networking.patch b/package/boot/uboot-fritz4040/patches/120-net-Use-packed-structures-for-networking.patch new file mode 100644 index 0000000000..8a7b0bb04f --- /dev/null +++ b/package/boot/uboot-fritz4040/patches/120-net-Use-packed-structures-for-networking.patch @@ -0,0 +1,137 @@ +From: Denis Pynkin <denis.pynkin@collabora.com> +Date: Fri, 21 Jul 2017 19:28:42 +0300 +Subject: [PATCH] net: Use packed structures for networking + +PXE boot is broken with GCC 7.1 due option '-fstore-merging' enabled +by default for '-O2': + +BOOTP broadcast 1 +data abort +pc : [<8ff8bb30>] lr : [<00004f1f>] +reloc pc : [<17832b30>] lr : [<878abf1f>] +sp : 8f558bc0 ip : 00000000 fp : 8ffef5a4 +r10: 8ffed248 r9 : 8f558ee0 r8 : 8ffef594 +r7 : 0000000e r6 : 8ffed700 r5 : 00000000 r4 : 8ffed74e +r3 : 00060101 r2 : 8ffed230 r1 : 8ffed706 r0 : 00000ddd +Flags: nzcv IRQs off FIQs off Mode SVC_32 +Resetting CPU ... + +Core reason is usage of structures for network headers without packed +attribute. + +Reviewed-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> +Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com> +Acked-by: Joe Hershberger <joe.hershberger@ni.com> +Signed-off-by: Christian Lamparter <chunkeey@gmail.com> +[backported from u-boot main] +--- + +--- a/include/net.h ++++ b/include/net.h +@@ -182,7 +182,7 @@ struct ethernet_hdr { + uchar et_dest[6]; /* Destination node */ + uchar et_src[6]; /* Source node */ + ushort et_protlen; /* Protocol or length */ +-}; ++} __attribute__((packed)); + + /* Ethernet header size */ + #define ETHER_HDR_SIZE (sizeof(struct ethernet_hdr)) +@@ -198,7 +198,7 @@ struct e802_hdr { + uchar et_snap2; + uchar et_snap3; + ushort et_prot; /* 802 protocol */ +-}; ++} __attribute__((packed)); + + /* 802 + SNAP + ethernet header size */ + #define E802_HDR_SIZE (sizeof(struct e802_hdr)) +@@ -212,7 +212,7 @@ struct vlan_ethernet_hdr { + ushort vet_vlan_type; /* PROT_VLAN */ + ushort vet_tag; /* TAG of VLAN */ + ushort vet_type; /* protocol type */ +-}; ++} __attribute__((packed)); + + /* VLAN Ethernet header size */ + #define VLAN_ETHER_HDR_SIZE (sizeof(struct vlan_ethernet_hdr)) +@@ -239,7 +239,7 @@ struct ip_hdr { + ushort ip_sum; /* checksum */ + IPaddr_t ip_src; /* Source IP address */ + IPaddr_t ip_dst; /* Destination IP address */ +-}; ++} __attribute__((packed)); + + #define IP_OFFS 0x1fff /* ip offset *= 8 */ + #define IP_FLAGS 0xe000 /* first 3 bits */ +@@ -267,7 +267,7 @@ struct ip_udp_hdr { + ushort udp_dst; /* UDP destination port */ + ushort udp_len; /* Length of UDP packet */ + ushort udp_xsum; /* Checksum */ +-}; ++} __attribute__((packed)); + + #define IP_UDP_HDR_SIZE (sizeof(struct ip_udp_hdr)) + #define UDP_HDR_SIZE (IP_UDP_HDR_SIZE - IP_HDR_SIZE) +@@ -306,7 +306,7 @@ struct arp_hdr { + uchar ar_tha[]; /* Target hardware address */ + uchar ar_tpa[]; /* Target protocol address */ + #endif /* 0 */ +-}; ++} __attribute__((packed)); + + #define ARP_HDR_SIZE (8+20) /* Size assuming ethernet */ + +@@ -341,7 +341,7 @@ struct icmp_hdr { + } frag; + uchar data[0]; + } un; +-}; ++} __attribute__((packed)); + + #define ICMP_HDR_SIZE (sizeof(struct icmp_hdr)) + #define IP_ICMP_HDR_SIZE (IP_HDR_SIZE + ICMP_HDR_SIZE) +--- a/net/bootp.h ++++ b/net/bootp.h +@@ -49,7 +49,7 @@ struct Bootp_t { + char bp_sname[64]; /* Server host name */ + char bp_file[128]; /* Boot file name */ + char bp_vend[OPT_FIELD_SIZE]; /* Vendor information */ +-}; ++} __attribute__((packed)); + + #define BOOTP_HDR_SIZE sizeof(struct Bootp_t) + +--- a/net/dns.h ++++ b/net/dns.h +@@ -32,7 +32,7 @@ struct header { + uint16_t nauth; /* Authority PRs */ + uint16_t nother; /* Other PRs */ + unsigned char data[1]; /* Data, variable length */ +-}; ++} __attribute__((packed)); + + extern void DnsStart(void); /* Begin DNS */ + +--- a/net/nfs.h ++++ b/net/nfs.h +@@ -71,7 +71,7 @@ struct rpc_t { + uint32_t data[19]; + } reply; + } u; +-}; ++} __attribute__((packed)); + extern void NfsStart(void); /* Begin NFS */ + + +--- a/net/sntp.h ++++ b/net/sntp.h +@@ -54,7 +54,7 @@ struct sntp_pkt_t { + unsigned long long originate_timestamp; + unsigned long long receive_timestamp; + unsigned long long transmit_timestamp; +-}; ++} __attribute__((packed)); + + extern void SntpStart(void); /* Begin SNTP */ + |