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- Fix seeking for negative SEEK_CUR seeks

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OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=146
This commit is contained in:
Alexander Graf 2013-07-16 02:49:49 +00:00 committed by Git OBS Bridge
parent e7ad48d2c8
commit 4478577386
5 changed files with 16 additions and 11 deletions
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16
0037-linux-user-lseek-explicitly-cast-en.patch → 0037-linux-user-lseek-explicitly-cast-no.patch
View File

@ -1,14 +1,14 @@
From f4310e6dc96e9036cd40d6b804019c4edbbb97f5 Mon Sep 17 00:00:00 2001 From a6c68880318cb93391649fa2a9edb9ef5cba9b8c Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de> From: Alexander Graf <agraf@suse.de>
Date: Thu, 13 Dec 2012 14:29:22 +0100 Date: Thu, 13 Dec 2012 14:29:22 +0100
Subject: [PATCH] linux-user: lseek: explicitly cast end offsets to signed Subject: [PATCH] linux-user: lseek: explicitly cast non-set offsets to signed
When doing lseek, SEEK_END indicates that the offset is a signed variable When doing lseek, SEEK_SET indicates that the offset is an unsigned variable.
that is usually negative, while and other SEEK indicates that it's unsigned. Other seek types have parameters that can be negative.
When converting from 32bit to 64bit parameters, we need to take this into When converting from 32bit to 64bit parameters, we need to take this into
account and enable SEEK_END to be negative, while other SEEKs usually indicate account and enable SEEK_END and SEEK_CUR to be negative, while SEEK_SET stays
absolute position which we need to maintain as unsigned. absolute positioned which we need to maintain as unsigned.
Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
--- ---
@ -16,7 +16,7 @@ Signed-off-by: Alexander Graf <agraf@suse.de>
1 file changed, 7 insertions(+), 2 deletions(-) 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index c1eceb2..259fed4 100644 index c1eceb2..232f70d 100644
--- a/linux-user/syscall.c --- a/linux-user/syscall.c
+++ b/linux-user/syscall.c +++ b/linux-user/syscall.c
@@ -5648,9 +5648,14 @@ abi_long do_syscall(void *cpu_env, int num, abi_ulong arg1, @@ -5648,9 +5648,14 @@ abi_long do_syscall(void *cpu_env, int num, abi_ulong arg1,
@ -27,7 +27,7 @@ index c1eceb2..259fed4 100644
- ret = get_errno(lseek(arg1, arg2, arg3)); - ret = get_errno(lseek(arg1, arg2, arg3));
+ case TARGET_NR_lseek: { + case TARGET_NR_lseek: {
+ off_t off = arg2; + off_t off = arg2;
+ if (arg3 == SEEK_END) { + if (arg3 != SEEK_SET) {
+ off = (abi_long)arg2; + off = (abi_long)arg2;
+ } + }
+ ret = get_errno(lseek(arg1, off, arg3)); + ret = get_errno(lseek(arg1, off, arg3));

2
0038-virtfs-proxy-helper-Provide-__u64-f.patch
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@ -1,4 +1,4 @@
From 563299dd5726bc6c7f2bc21ba101f965cf0c9fba Mon Sep 17 00:00:00 2001 From da9befab62ffd8232354cc7e4e1d1d1db288d462 Mon Sep 17 00:00:00 2001
From: Bruce Rogers <brogers@suse.com> From: Bruce Rogers <brogers@suse.com>
Date: Thu, 16 May 2013 12:39:10 +0200 Date: Thu, 16 May 2013 12:39:10 +0200
Subject: [PATCH] virtfs-proxy-helper: Provide __u64 for broken Subject: [PATCH] virtfs-proxy-helper: Provide __u64 for broken

5
qemu-linux-user.changes
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@ -1,3 +1,8 @@
-------------------------------------------------------------------
Tue Jul 16 02:48:53 UTC 2013 - agraf@suse.com
- Fix seeking for negative SEEK_CUR seeks
------------------------------------------------------------------- -------------------------------------------------------------------
Sat May 25 15:50:49 UTC 2013 - afaerber@suse.de Sat May 25 15:50:49 UTC 2013 - afaerber@suse.de

2
qemu-linux-user.spec
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@ -60,7 +60,7 @@ Patch0033: 0033-Legacy-Patch-kvm-qemu-preXX-dictzip.patch
Patch0034: 0034-Legacy-Patch-kvm-qemu-preXX-report-.patch Patch0034: 0034-Legacy-Patch-kvm-qemu-preXX-report-.patch
Patch0035: 0035-console-add-question-mark-escape-op.patch Patch0035: 0035-console-add-question-mark-escape-op.patch
Patch0036: 0036-Make-char-muxer-more-robust-wrt-sma.patch Patch0036: 0036-Make-char-muxer-more-robust-wrt-sma.patch
Patch0037: 0037-linux-user-lseek-explicitly-cast-en.patch Patch0037: 0037-linux-user-lseek-explicitly-cast-no.patch
Patch0038: 0038-virtfs-proxy-helper-Provide-__u64-f.patch Patch0038: 0038-virtfs-proxy-helper-Provide-__u64-f.patch
# this is to make lint happy # this is to make lint happy
Source300: rpmlintrc Source300: rpmlintrc

2
qemu.spec
View File

@ -60,7 +60,7 @@ Patch0033: 0033-Legacy-Patch-kvm-qemu-preXX-dictzip.patch
Patch0034: 0034-Legacy-Patch-kvm-qemu-preXX-report-.patch Patch0034: 0034-Legacy-Patch-kvm-qemu-preXX-report-.patch
Patch0035: 0035-console-add-question-mark-escape-op.patch Patch0035: 0035-console-add-question-mark-escape-op.patch
Patch0036: 0036-Make-char-muxer-more-robust-wrt-sma.patch Patch0036: 0036-Make-char-muxer-more-robust-wrt-sma.patch
Patch0037: 0037-linux-user-lseek-explicitly-cast-en.patch Patch0037: 0037-linux-user-lseek-explicitly-cast-no.patch
Patch0038: 0038-virtfs-proxy-helper-Provide-__u64-f.patch Patch0038: 0038-virtfs-proxy-helper-Provide-__u64-f.patch
# this is to make lint happy # this is to make lint happy
Source300: rpmlintrc Source300: rpmlintrc