From: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
To: kexec@lists.infradead.org
Subject: [PATCH 4/6] mips: crashdump: add little-endian support
Date: Fri, 2 Dec 2016 10:49:09 +0100 [thread overview]
Message-ID: <1480672151-18503-5-git-send-email-marcin.nowakowski@imgtec.com> (raw)
In-Reply-To: <1480672151-18503-1-git-send-email-marcin.nowakowski@imgtec.com>
Elf header for crashdump has until now been hardcoded as big-endian.
Change that to use the native endianness for the compile target so that
the crashdumps are generated properly for each CPU type.
Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
---
kexec/arch/mips/crashdump-mips.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/kexec/arch/mips/crashdump-mips.c b/kexec/arch/mips/crashdump-mips.c
index e56b3ef..278ee01 100644
--- a/kexec/arch/mips/crashdump-mips.c
+++ b/kexec/arch/mips/crashdump-mips.c
@@ -288,9 +288,17 @@ static int cmdline_add_elfcorehdr(char *cmdline, unsigned long addr)
return 0;
}
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+# define ELFDATALOCAL ELFDATA2LSB
+#elif __BYTE_ORDER == __BIG_ENDIAN
+# define ELFDATALOCAL ELFDATA2MSB
+#else
+# error Unknown byte order
+#endif
+
static struct crash_elf_info elf_info64 = {
class: ELFCLASS64,
- data : ELFDATA2MSB,
+ data : ELFDATALOCAL,
machine : EM_MIPS,
page_offset : PAGE_OFFSET,
lowmem_limit : MAXMEM,
@@ -298,7 +306,7 @@ static struct crash_elf_info elf_info64 = {
static struct crash_elf_info elf_info32 = {
class: ELFCLASS32,
- data : ELFDATA2MSB,
+ data : ELFDATALOCAL,
machine : EM_MIPS,
page_offset : PAGE_OFFSET,
lowmem_limit : MAXMEM,
--
2.7.4
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next prev parent reply other threads:[~2016-12-02 9:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-02 9:49 [PATCH 0/6] Kexec fixes and updates for MIPS platforms Marcin Nowakowski
2016-12-02 9:49 ` [PATCH 1/6] mips: remove incorrect arch_usage string Marcin Nowakowski
2016-12-02 9:49 ` [PATCH 2/6] mips: use arch_options for both 32 and 64 bit variants Marcin Nowakowski
2016-12-02 9:49 ` [PATCH 3/6] mips: move arch option parsing from elf loader to common arch code Marcin Nowakowski
2016-12-02 9:49 ` Marcin Nowakowski [this message]
2016-12-02 9:49 ` [PATCH 5/6] mips: add dtb loading support Marcin Nowakowski
2016-12-02 9:49 ` [PATCH 6/6] mips: add option to load initrd from a specified file Marcin Nowakowski
2016-12-09 7:57 ` [PATCH 0/6] Kexec fixes and updates for MIPS platforms Simon Horman
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