unicorn/qemu
Eric Blake c14d8226ab
qapi: Fix memleak in string visitors on int lists
Commit 7f8f9ef1 introduced the ability to store a list of
integers as a sorted list of ranges, but when merging ranges,
it leaks one or more ranges. It was also using range_get_last()
incorrectly within range_compare() (a range is a start/end pair,
but range_get_last() is for start/len pairs), and will also
mishandle a range ending in UINT64_MAX (remember, we document
that no range covers 2**64 bytes, but that ranges that end on
UINT64_MAX have end < begin).

The whole merge algorithm was rather complex, and included
unnecessary passes over data within glib functions, and enough
indirection to make it hard to easily plug the data leaks.
Since we are already hard-coding things to a list of ranges,
just rewrite the thing to open-code the traversal and
comparisons, by making the range_compare() helper function give
us an answer that is easier to use, at which point we avoid the
need to pass any callbacks to g_list_*(). Then by reusing
range_extend() instead of duplicating effort with range_merge(),
we cover the corner cases correctly.

Drop the now-unused range_merge() and ranges_can_merge().

Doing this lets test-string-{input,output}-visitor pass under
valgrind without leaks.

Backports commit db486cc334aafd3dbdaf107388e37fc3d6d3e171 from qemu
2018-02-25 00:20:34 -05:00
..
crypto crypto: Clean up includes 2018-02-19 00:47:40 -05:00
default-configs arm64eb: add support for ARM64 big endian. 2017-04-24 23:30:01 +08:00
docs docs: clarify memory region lifecycle 2018-02-12 15:11:21 -05:00
fpu softfloat: Handle snan_bit_is_one == 0 in MIPS pickNaNMulAdd() 2018-02-24 20:40:11 -05:00
hw qemu-common: push cpu.h inclusion out of qemu-common.h 2018-02-24 01:50:56 -05:00
include qapi: Fix memleak in string visitors on int lists 2018-02-25 00:20:34 -05:00
qapi qapi: Simplify use of range.h 2018-02-25 00:02:42 -05:00
qobject util: move declarations out of qemu-common.h 2018-02-22 09:25:48 -05:00
qom qom: API to get instance_size of a type 2018-02-24 19:00:16 -05:00
scripts qapi: Fix crash on missing alternate member of QAPI struct 2018-02-24 23:53:29 -05:00
target-arm softfloat: Implement run-time-configurable meaning of signaling NaN bit 2018-02-24 20:27:12 -05:00
target-i386 exec: [tcg] Track which vCPU is performing translation and execution 2018-02-24 19:21:39 -05:00
target-m68k softfloat: Implement run-time-configurable meaning of signaling NaN bit 2018-02-24 20:27:12 -05:00
target-mips target-mips: Add FCR31's FS bit definition 2018-02-24 21:32:10 -05:00
target-sparc exec: [tcg] Track which vCPU is performing translation and execution 2018-02-24 19:21:39 -05:00
tcg exec: [tcg] Track which vCPU is performing translation and execution 2018-02-24 19:21:39 -05:00
util qapi: Fix memleak in string visitors on int lists 2018-02-25 00:20:34 -05:00
aarch64.h target-arm: Provide hook to tell GICv3 about changes of security state 2018-02-24 19:09:22 -05:00
aarch64eb.h target-arm: Provide hook to tell GICv3 about changes of security state 2018-02-24 19:09:22 -05:00
accel.c accel: make configure_accelerator return void 2018-02-24 00:31:28 -05:00
arm.h target-arm: Provide hook to tell GICv3 about changes of security state 2018-02-24 19:09:22 -05:00
armeb.h target-arm: Provide hook to tell GICv3 about changes of security state 2018-02-24 19:09:22 -05:00
CODING_STYLE
configure configure: Enable -Werror for MinGW builds, too 2018-02-24 18:56:05 -05:00
COPYING
COPYING.LIB
cpu-exec-common.c cpu-exec: Rename cpu_resume_from_signal() to cpu_loop_exit_noexc() 2018-02-24 17:25:28 -05:00
cpu-exec.c tb hash: hash phys_pc, pc, and flags with xxhash 2018-02-24 18:00:14 -05:00
cpus.c cpu: move exec-all.h inclusion out of cpu.h 2018-02-24 02:39:08 -05:00
cputlb.c memory: split memory_region_from_host from qemu_ram_addr_from_host 2018-02-24 16:06:49 -05:00
exec.c exec: hide mr->ram_addr from qemu_get_ram_ptr users 2018-02-24 16:17:49 -05:00
gen_all_header.sh arm64eb: add support for ARM64 big endian. 2017-04-24 23:30:01 +08:00
glib_compat.c qapi: Fix memleak in string visitors on int lists 2018-02-25 00:20:34 -05:00
HACKING
header_gen.py target-mips: Add nan2008 flavor of <CEIL|CVT|FLOOR|ROUND|TRUNC>.<L|W>.<S|D> 2018-02-24 21:14:04 -05:00
ioport.c hw: remove pio_addr_t 2018-02-24 02:43:16 -05:00
LICENSE
m68k.h qom: API to get instance_size of a type 2018-02-24 19:00:16 -05:00
Makefile Makefile: Add a FORCE target 2018-02-24 17:03:51 -05:00
Makefile.objs crypto: move crypto objects out of libqemuutil.la 2018-02-17 15:23:50 -05:00
Makefile.target tcg: split tcg_op_defs to -common 2018-02-17 15:23:51 -05:00
memory.c exec: hide mr->ram_addr from qemu_get_ram_ptr users 2018-02-24 16:17:49 -05:00
memory_mapping.c include/qemu/osdep.h: Don't include qapi/error.h 2018-02-21 23:08:18 -05:00
mips.h target-mips: Add nan2008 flavor of <CEIL|CVT|FLOOR|ROUND|TRUNC>.<L|W>.<S|D> 2018-02-24 21:14:04 -05:00
mips64.h target-mips: Add nan2008 flavor of <CEIL|CVT|FLOOR|ROUND|TRUNC>.<L|W>.<S|D> 2018-02-24 21:14:04 -05:00
mips64el.h target-mips: Add nan2008 flavor of <CEIL|CVT|FLOOR|ROUND|TRUNC>.<L|W>.<S|D> 2018-02-24 21:14:04 -05:00
mipsel.h target-mips: Add nan2008 flavor of <CEIL|CVT|FLOOR|ROUND|TRUNC>.<L|W>.<S|D> 2018-02-24 21:14:04 -05:00
powerpc.h qom: API to get instance_size of a type 2018-02-24 19:00:16 -05:00
qapi-schema.json qapi: Lazy creation of array types 2018-02-19 18:55:35 -05:00
qemu-log.c log: move qemu_log_close/qemu_log_flush from header to log.c 2018-02-22 11:13:17 -05:00
qemu-timer.c all: Clean up includes 2018-02-19 01:34:28 -05:00
rules.mak Makefile: add dependency on scripts/create_config 2018-02-24 17:05:03 -05:00
softmmu_template.h exec.c: Pass MemTxAttrs to iotlb_to_region so it uses the right AS 2018-02-17 23:19:00 -05:00
sparc.h qom: API to get instance_size of a type 2018-02-24 19:00:16 -05:00
sparc64.h qom: API to get instance_size of a type 2018-02-24 19:00:16 -05:00
tcg-runtime.c all: Clean up includes 2018-02-19 01:34:28 -05:00
translate-all.c exec: [tcg] Track which vCPU is performing translation and execution 2018-02-24 19:21:39 -05:00
translate-all.h user-exec: Push resume-from-signal code out to handle_cpu_signal() 2018-02-24 17:21:06 -05:00
translate-common.c exec: Clean up includes 2018-02-19 00:49:55 -05:00
unicorn_common.h qom/cpu: Add MemoryRegion property 2018-02-18 21:54:50 -05:00
VERSION
vl.c hw: explicitly include qemu/log.h 2018-02-24 02:00:45 -05:00
vl.h
x86_64.h qom: API to get instance_size of a type 2018-02-24 19:00:16 -05:00