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Fabien Chouteau d60fa42e8b Save memory allocation in the elf loader

The current elf loader uses too much memory. For example, I have a
executable with a bss section of 400 MB and I set the ram size to 512
MB. Qemu uses about 780MB of RAM (which is fine), but there's a peak at
1.6 GB during initialization (this is not fine).

This patch fixes two things:
 1) do not allocate each elf program twice.
 2) do not allocate memory for areas that are only zeros.

For this we need a new field in Rom: "datasize" which is the size of the
allocated data. If datasize is less than romsize, it means that the area
from datasize to romsize is filled with zeros.

Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

2013-03-08 21:04:52 +01:00

audio

audio: Replace non-portable asprintf in debug code by g_strdup_printf

2013-01-16 12:03:26 -06:00

backends

Make all static TypeInfos const

2013-01-10 15:11:53 -06:00

block

sheepdog: add support for connecting to unix domain socket

2013-03-04 09:54:17 +01:00

bsd-user

qemu-log: default to stderr for logging output

2013-02-26 13:31:47 -06:00

default-configs

hw/sdhci: introduce standard SD host controller

2013-02-28 18:23:14 +00:00

disas

Replace all setjmp()/longjmp() with sigsetjmp()/siglongjmp()

2013-02-23 16:11:19 +00:00

docs

trace: Fix location of simpletrace.py in docs

2013-02-05 21:52:55 +01:00

fpu

softfloat: Handle float_muladd_negate_c when product is zero

2013-01-26 13:22:09 +00:00

fsdev

virtfs-proxy-helper: Fix unchecked strdup() by conv. to g_strdup()

2013-01-30 11:14:46 +01:00

gdb-xml

…

Save memory allocation in the elf loader

2013-03-08 21:04:52 +01:00

include

Merge remote-tracking branch 'stefanha/block' into staging

2013-03-04 08:22:48 -06:00

ldscripts

build: create ldscripts/

2012-12-19 08:29:06 +01:00

libcacard

libcacard: Fix unchecked strdup() by converting to g_strdup()

2013-01-30 11:14:46 +01:00

linux-headers

linux-headers: resync from mainline to add ARM KVM headers

2013-03-05 00:34:40 +00:00

linux-user

mipsn32-linux-user: Configure the architecture properly

2013-03-05 15:04:20 +01:00

net

net: reduce the unnecessary memory allocation of multiqueue

2013-02-27 16:10:47 +01:00

pc-bios

update seabios to 1.7.2.1

2013-02-28 09:19:00 +01:00

pixman @ 97336fad32

qapi: move include files to include/qobject/

2012-12-19 08:31:31 +01:00

ui/gtk: Use menu item from stock for full screen

2013-02-22 14:49:00 -06:00

qapi

qapi: Fix unchecked strdup() by converting to g_strdup()

2013-01-30 11:14:46 +01:00

qga

qemu-ga: Fix unchecked strdup() by converting to g_strdup()

2013-01-30 11:14:46 +01:00

QMP

qmp: add pull_event function

2012-10-24 10:26:22 +02:00

qobject

build: move qobject files to qobject/ and libqemuutil.a

2013-01-12 18:42:50 +01:00

qom

qom/object.c: Allow itf cast with num_itfs = 0

2013-02-21 16:34:10 -06:00

roms

update seabios to 1.7.2.1

2013-02-28 09:19:00 +01:00

scripts

fix scripts/make_device_config.sh

2013-02-19 11:53:49 +01:00

slirp

move socket_set_nodelay to osdep.c

2013-03-04 09:54:17 +01:00

stubs

slirp: switch to GPollFD

2013-02-21 16:17:31 -06:00

sysconfigs/target

Eliminate cpus-x86_64.conf file

2012-09-21 15:12:58 +02:00

target-alpha

gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end

2013-03-03 14:29:08 +00:00

target-arm

target-arm: Use MemoryListener to identify GIC base address for KVM

2013-03-05 00:45:25 +00:00

target-cris

gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end

2013-03-03 14:29:08 +00:00

target-i386

Merge remote-tracking branch 'mst/tags/for_anthony' into staging

2013-03-04 08:22:41 -06:00

target-lm32

gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end

2013-03-03 14:29:08 +00:00

target-m68k

gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end

2013-03-03 14:29:08 +00:00

target-microblaze

gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end

2013-03-03 14:29:08 +00:00

target-mips

mips64-linux-user: Enable 64-bit address mode and fpu

2013-03-05 11:58:48 +01:00

target-openrisc

gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end

2013-03-03 14:29:08 +00:00

target-ppc

target-ppc: Change "POWER7" CPU alias

2013-03-08 21:04:52 +01:00

target-s390x

gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end

2013-03-03 14:29:08 +00:00

target-sh4

gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end

2013-03-03 14:29:08 +00:00

target-sparc

gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end

2013-03-03 14:29:08 +00:00

target-unicore32

gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end

2013-03-03 14:29:08 +00:00

target-xtensa

gen-icount.h: Rename gen_icount_start/end to gen_tb_start/end

2013-03-03 14:29:08 +00:00

tcg

Handle CPU interrupts by inline checking of a flag

2013-03-03 14:28:47 +00:00

tests

target-mips: fix DSP overflow macro and affected routines

2013-03-04 18:15:34 +01:00

trace

trace: deal with deprecated glib thread functions

2013-02-12 16:26:44 -06:00

Add compat for GDK_KEY_XXX symbols

2013-02-26 13:29:55 -06:00

util

oslib-posix: Align to permit transparent hugepages on ARM Linux

2013-03-05 00:34:40 +00:00

.exrc

qemu: add .exrc

2012-09-07 09:02:44 +03:00

.gitignore

.gitignore: Ignore optionrom/*.asm

2013-02-21 10:38:07 +01:00

.gitmodules

pixman: add submodule

2012-11-01 13:10:06 +01:00

.mailmap

Add a .mailmap to map pre-git-conversion authors to friendly names

2011-12-12 17:06:21 -06:00

aio-posix.c

aio: support G_IO_HUP and G_IO_ERR

2013-02-21 16:17:31 -06:00

aio-win32.c

aio: Fix return value of aio_poll()

2013-01-17 10:51:42 +01:00

arch_init.c

migration: calculate expected_downtime

2013-02-22 10:12:52 +01:00

async.c

aio: convert aio_poll() to g_poll(3)

2013-02-21 16:17:31 -06:00

balloon.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

block-migration.c

block-migration: fix pending() and iterate() return values

2013-02-12 16:26:44 -06:00

block.c

block: for HMP commit() operations on 'all', skip non-COW drives

2013-03-04 09:54:17 +01:00

blockdev-nbd.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

blockdev.c

blockdev: add discard suboption to -drive

2013-02-22 21:29:42 +01:00

blockjob.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

bt-host.c

softmmu: move remaining include files to include/ subdirectories

2012-12-19 08:32:46 +01:00

bt-vhci.c

softmmu: move remaining include files to include/ subdirectories

2012-12-19 08:32:46 +01:00

Changelog

fix some common typos

2012-05-14 07:27:24 +02:00

cmd.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

cmd.h

…

CODING_STYLE

Replace Qemu by QEMU in internal documentation

2012-04-07 13:58:25 +00:00

configure

Merge branch 'target-arm.next' of git://git.linaro.org/people/pmaydell/qemu-arm

2013-03-05 15:11:30 +01:00

COPYING

…

COPYING.LIB

…

coroutine-gthread.c

block: move include files to include/block/

2012-12-19 08:31:31 +01:00

coroutine-sigaltstack.c

Merge remote-tracking branch 'kwolf/for-anthony' into staging

2013-02-26 07:44:39 -06:00

coroutine-ucontext.c

Merge remote-tracking branch 'kwolf/for-anthony' into staging

2013-02-26 07:44:39 -06:00

coroutine-win32.c

block: move include files to include/block/

2012-12-19 08:31:31 +01:00

cpu-exec.c

Handle CPU interrupts by inline checking of a flag

2013-03-03 14:28:47 +00:00

cpus.c

cpus.c: Drop unnecessary set_cpu_log()

2013-02-16 10:45:19 +00:00

cputlb.c

cpu: Move current_tb field to CPUState

2013-02-16 14:51:00 +01:00

device_tree.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

disas.c

monitor: move include files to include/monitor/

2012-12-19 08:31:32 +01:00

dma-helpers.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

dump-stub.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

dump.c

cpu: Move host_tid field to CPUState

2013-02-16 14:50:59 +01:00

exec.c

Handle CPU interrupts by inline checking of a flag

2013-03-03 14:28:47 +00:00

gdbstub.c

move socket_set_nodelay to osdep.c

2013-03-04 09:54:17 +01:00

HACKING

HACKING: List areas where we may rely on impdef C behaviour

2012-12-08 14:27:40 +00:00

hmp-commands.hx

doc: document -netdev hubport

2013-02-27 16:10:47 +01:00

hmp.c

error: Strip trailing '\n' from error string arguments (again)

2013-02-11 08:13:19 -06:00

hmp.h

qemu-char: Saner naming of memchar stuff & doc fixes

2013-02-06 16:35:19 -06:00

iohandler.c

iohandler: switch to GPollFD

2013-02-21 16:17:31 -06:00

ioport.c

exec: move include files to include/exec/

2012-12-19 08:31:31 +01:00

kvm-all.c

cpu: Move exit_request field to CPUState

2013-02-16 14:51:00 +01:00

kvm-stub.c

kvm: Pass CPUState to kvm_on_sigbus_vcpu()

2013-01-28 16:57:56 +01:00

LICENSE

LICENSE: There is no libqemu.a anymore

2011-12-09 11:25:22 +00:00

main-loop.c

main-loop: drop rfds/wfds/xfds for good

2013-02-21 16:17:31 -06:00

MAINTAINERS

MAINTAINERS: add entry for ARM KVM guest cores

2013-03-05 00:45:43 +00:00

Makefile

gtk: add translation support (v5)

2013-02-21 16:34:48 -06:00

Makefile.objs

qtest: Add MMIO support

2013-02-18 08:39:10 -06:00

Makefile.target

qtest: Add MMIO support

2013-02-18 08:39:10 -06:00

memory_mapping-stub.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

memory_mapping.c

exec: change RAM list to a TAILQ

2012-12-20 23:08:47 +01:00

memory.c

memory: Use non-bitops ctzl

2013-02-16 11:12:13 +00:00

migration-exec.c

migration: make writes blocking

2012-12-20 23:09:25 +01:00

migration-fd.c

migration: make writes blocking

2012-12-20 23:09:25 +01:00

migration-tcp.c

migration: make writes blocking

2012-12-20 23:09:25 +01:00

migration-unix.c

migration: make writes blocking

2012-12-20 23:09:25 +01:00

migration.c

migration: calculate expected_downtime

2013-02-22 10:12:52 +01:00

monitor.c

Replace all setjmp()/longjmp() with sigsetjmp()/siglongjmp()

2013-02-23 16:11:19 +00:00

nbd.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

os-posix.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

os-win32.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

page_cache.c

migration: move include files to include/migration/

2012-12-19 08:31:32 +01:00

qapi-schema-test.json

qapi: add struct-errors test case to test-qmp-output-visitor

2012-03-27 09:11:00 -03:00

qapi-schema.json

qemu-img: add compressed clusters to BlockFragInfo

2013-02-22 21:21:09 +01:00

qdict-test-data.txt

…

qemu-bridge-helper.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

qemu-char.c

move socket_set_nodelay to osdep.c

2013-03-04 09:54:17 +01:00

qemu-coroutine-io.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

qemu-coroutine-lock.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

qemu-coroutine-sleep.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

qemu-coroutine.c

coroutine: move pooling to common code

2013-02-22 21:21:10 +01:00

qemu-doc.texi

sheepdog: add support for connecting to unix domain socket

2013-03-04 09:54:17 +01:00

qemu-img-cmds.hx

qemu-img: Add compare subcommand

2013-02-22 21:21:10 +01:00

qemu-img.c

qemu-img: Add compare subcommand

2013-02-22 21:21:10 +01:00

qemu-img.texi

qemu-img: Add compare subcommand

2013-02-22 21:21:10 +01:00

qemu-io.c

block: implement BDRV_O_UNMAP

2013-02-22 21:29:42 +01:00

qemu-log.c

qemu-log: default to stderr for logging output

2013-02-26 13:31:47 -06:00

qemu-nbd.c

qemu-nbd: add --discard option

2013-02-22 21:29:43 +01:00

qemu-nbd.texi

qemu-nbd: add --discard option

2013-02-22 21:29:43 +01:00

qemu-options-wrapper.h

vl.c: In qemu -h output, only print options for the arch we are running as

2011-12-19 10:27:33 -06:00

qemu-options.h

vl.c: Move option generation logic into a wrapper file

2011-12-19 10:27:33 -06:00

qemu-options.hx

Merge remote-tracking branch 'stefanha/block' into staging

2013-03-04 08:22:48 -06:00

qemu-seccomp.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

qemu-tech.texi

qemu-tech.texi: update implemented xtensa features list

2012-11-29 13:00:52 -06:00

qemu-timer.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

qemu.sasl

…

qmp-commands.hx

qmp: netdev_add is like -netdev, not -net, fix documentation

2013-02-27 16:10:47 +01:00

qmp.c

softmmu: move remaining include files to include/ subdirectories

2012-12-19 08:32:46 +01:00

qtest.c

qtest: Add MMIO support

2013-02-18 08:39:10 -06:00

readline.c

readline: Fix unchecked strdup() by converting to g_strdup()

2013-01-30 11:14:46 +01:00

README

Update README

2011-12-11 17:50:43 -06:00

rules.mak

rules/mak: make clean should blow away timestamp files

2013-01-30 01:31:08 +02:00

savevm.c

migration: make qemu_ftell() public and support writable files

2013-02-12 16:26:44 -06:00

spice-qemu-char.c

Merge remote-tracking branch 'bonzini/header-dirs' into staging

2012-12-19 17:15:39 -06:00

tcg-runtime.c

tcg: Implement multiword multiply helpers

2013-02-23 17:25:28 +00:00

tci.c

exec: move include files to include/exec/

2012-12-19 08:31:31 +01:00

thread-pool.c

misc: move include files to include/qemu/

2012-12-19 08:32:39 +01:00

thunk.c

exec: move include files to include/exec/

2012-12-19 08:31:31 +01:00

trace-events

usb-xhci: usb3 streams

2013-02-19 13:17:48 +01:00

translate-all.c

translate-all.c: Remove cpu_unlink_tb()

2013-03-03 14:28:59 +00:00

translate-all.h

cputlb: Pass CPUState to cpu_unlink_tb()

2013-02-16 14:51:00 +01:00

user-exec.c

Replace all setjmp()/longjmp() with sigsetjmp()/siglongjmp()

2013-02-23 16:11:19 +00:00

VERSION

Open up 1.5 development tree

2013-02-15 17:40:56 -06:00

version.rc

…

vl.c

vl.c: allow for repeated -sd arguments

2013-02-28 18:49:19 +00:00

xbzrle.c

Move XBZRLE encoding code to a separate file to allow testing

2013-02-01 08:32:20 +01:00

xen-all.c

xen: Simplify halting of first CPU

2013-01-15 04:09:14 +01:00

xen-mapcache.c

softmmu: move include files to include/sysemu/

2012-12-19 08:32:45 +01:00

xen-stub.c

exec: move include files to include/exec/

2012-12-19 08:31:31 +01:00

README

Read the documentation in qemu-doc.html or on http://wiki.qemu.org

- QEMU team

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