Hi,
I am integrating JFFS2 into our MIPS Malta board. I am seeing a strange issue.
In JFFS2 erase.c file and function jffs2_mark_erased_block , code section as
below
struct jffs2_unknown_node marker = {
.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK),
.nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
.totlen = cpu_to_je32(c->cleanmarker_size)
};
struct jffs2_unknown_node
{
/* All start like this */
jint16_t magic;
jint16_t nodetype;
jint32_t totlen; /* So we can skip over nodes we don't grok */
jint32_t hdr_crc;
} __attribute__((packed));
I am seeing that both .magic and .nodetype are filled with 0x2003 which is the
value of JFFS2_NODETYPE_CLEANMARKER.
If I change the code to the following it is working fine...
struct jffs2_unknown_node marker = {
.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK),
.nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
.totlen = cpu_to_je32(c->cleanmarker_size)
};
marker.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
I don't know if it is CFLAGS issue or Compiler issue.I am thinking it is a
compiler optimisation re-ordering issue.I am using -Os flag.
Compiler I am using is gcc version 3.2.1 (eCosCentric)
Thanks & Regards,
Ramgopal Kota
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