Hi All,
Recently, I found that x86 vmlinux.bin are changed from raw image to elf, we
can got it from the following objcopy flags:
linux-3.7.x/arch/x86/boot/compressed/Makefileļ¼
OBJCOPYFLAGS_vmlinux.bin := -R .comment -S
$(obj)/vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
we can
Hi All,
For x86, in arch/x86/kernel/head_32.S, for Initializing page tables,
why mapping beyond end by MAPPING_BEYOND_END:
/*
* End condition: we must map up to the end + MAPPING_BEYOND_END.
*/
movl $pa(_end) + MAPPING_BEYOND_END + PTE_IDENT_ATTR, %ebp
cmpl %ebp,%eax
Hi
I am trying to understand the vt tty driver.
I have been trying to read the code and have been referring to Linux Device
Drivers book. I have read this
http://www.linusakesson.net/programming/ttyto get an idea of what ttys
are etc.
I have many doubts and would be very greatful if someone could
And I just double check, the transition happened from 2.6.25 to 2.6.26:
This is makefile fragment of 2.6.25:
linux-2.6.25/arch/x86/boot/compressed/Makefile
OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
$(obj)/vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
while the
In principle, ioremap() will return 0x if the physical address
passed is of memory.
I just want you to double check the address you have passed to ioremap().
In my experiment on x86 Desktop machine with 2GB RAM. I passed a physical
address 0x63ACD000. As expected it returned 0x. I
I passed a physical address 0x63ACD000. As expected it returned
0x. I am running linux version 3.5.1.
Mine is ARM, i donno about x86. In my case ioremap is successfule and
giving an address in ioremap() range of virtual memory map as in
http://www.arm.linux.org.uk/developer/memory.txt.
On Sat, 02 Mar 2013 16:36:43 +0800, Jacky said:
The -O binary is removed. And I don't find any changelog.
A quick course on researching kernel development history...
Step 1: 'git blame arch/x86/boot/compressed/Maekfile'
That gives us the line:
099e1377 (Ian Campbell2008-02-13
