diff options
author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2013-12-06 10:10:01 +1100 |
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committer | Alexey Kardashevskiy <aik@ozlabs.ru> | 2014-02-04 19:49:46 +1100 |
commit | c2358afb40d42fa1f9c6ffb59c32f803bb3aa44d (patch) | |
tree | 9545dd4d56240c0545193c94587ff2a043289985 /lib | |
parent | 41a34055032ac5c64811238fe72f514634285c09 (diff) | |
download | SLOF-c2358afb40d42fa1f9c6ffb59c32f803bb3aa44d.zip SLOF-c2358afb40d42fa1f9c6ffb59c32f803bb3aa44d.tar.gz SLOF-c2358afb40d42fa1f9c6ffb59c32f803bb3aa44d.tar.bz2 |
Add support for 64bit LE ABI v1 and v2 support
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
--
v2: With the parameters changed for go-64, kernel loading from commandline broke
v3: (client-exec) calls start-elf64 directly, fix args
Diffstat (limited to 'lib')
-rw-r--r-- | lib/libelf/elf.c | 13 | ||||
-rw-r--r-- | lib/libelf/elf64.c | 7 |
2 files changed, 18 insertions, 2 deletions
diff --git a/lib/libelf/elf.c b/lib/libelf/elf.c index 1340103..27fd51d 100644 --- a/lib/libelf/elf.c +++ b/lib/libelf/elf.c @@ -80,7 +80,9 @@ elf_check_file(unsigned long *file_addr) * @param pre_load handler that is called before copying a segment * @param post_load handler that is called after copying a segment * @return 1 for a 32 bit file - * 2 for a 64 bit file + * 2 for a 64 bit BE file + * 3 for a 64 bit LE ABIv1 file + * 3 for a 64 bit LE ABIv2 file * anything else means an error during load */ int @@ -89,6 +91,7 @@ elf_load_file(void *file_addr, unsigned long *entry, void (*post_load)(void*, long)) { int type = elf_check_file(file_addr); + struct ehdr *ehdr = (struct ehdr *) file_addr; switch (type) { case 1: @@ -96,9 +99,15 @@ elf_load_file(void *file_addr, unsigned long *entry, break; case 2: *entry = elf_load_segments64(file_addr, 0, pre_load, post_load); + if (ehdr->ei_data != ELFDATA2MSB) { + uint32_t flags = elf_get_eflags_64(file_addr); + if ((flags & 0x3) == 2) + type = 4; /* LE64 ABIv2 */ + else + type = 3; /* LE64 ABIv1 */ + } break; } - return type; } diff --git a/lib/libelf/elf64.c b/lib/libelf/elf64.c index faddbfb..62ac885 100644 --- a/lib/libelf/elf64.c +++ b/lib/libelf/elf64.c @@ -462,3 +462,10 @@ elf_byteswap_header64(void *file_addr) phdr = (struct phdr64 *)(((uint8_t *)phdr) + ehdr->e_phentsize); } } + +uint32_t elf_get_eflags_64(void *file_addr) +{ + struct ehdr64 *ehdr = (struct ehdr64 *) file_addr; + + return ehdr->e_flags; +} |