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According to C99, realloc(non_null, 0) != free(non_null), that's why
it is forbidden in QEMU.
When there are no symbols, nsyms equals to 0. Free the syms structure
and set it to NULL instead of reallocating it with a size of 0.
This fixes -kernel with stripped kernels.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
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This patch adds infrastructure to maintain memory regions which must be
restored on reset. That includes roms (vga bios and option roms on pc),
but is also used when loading linux kernels directly. Features:
- loading files is supported.
- passing blobs is supported.
- target address range is supported (for optionrom area).
- fixed target memory address is supported (linux kernel).
New in v2:
- writes to ROM are done only at initial boot.
- also handle aout and uimage loaders.
- drop unused fread_targphys() function.
The final memory layout is created once all memory regions are
registered. The option roms get addresses assigned and the
registered regions are checked against overlaps. Finally all data
is copyed to the guest memory.
Advantages:
(1) Filling memory on initial boot and on reset takes the same
code path, making reset more robust.
(2) The need to keep track of the option rom load address is gone.
(3) Due to (2) option roms can be loaded outside pc_init(). This
allows to move the pxe rom loading into the nic drivers for
example.
Additional bonus: There is a 'info roms' monitor command now.
The patch also switches over pc.c and removes the
option_rom_setup_reset() and load_option_rom() functions.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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In the very least, a change like this requires discussion on the list.
The naming convention is goofy and it causes a massive merge problem. Something
like this _must_ be presented on the list first so people can provide input
and cope with it.
This reverts commit 99a0949b720a0936da2052cb9a46db04ffc6db29.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Some not so obvious bits, slirp and Xen were left alone for the time
being.
Signed-off-by: malc <av1474@comtv.ru>
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Callers must pass ELF machine, byte swapping and symbol LSB clearing
information to ELF loader. A.out loader needs page size information, pass
that too as a parameter.
Extract prototypes to a separate file. Move loader.[ch] and elf_ops.h under hw.
Adjust callers. Also use target_phys_addr_t instead of target_ulong for
addresses: loader addresses aren't virtual.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1832 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1462 c046a42c-6fe2-441c-8c8c-71466251a162
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