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[Qemu-devel] [PULL 01/14] linux-user: Add /proc/self/exe open forwarding
From: |
riku . voipio |
Subject: |
[Qemu-devel] [PULL 01/14] linux-user: Add /proc/self/exe open forwarding |
Date: |
Fri, 2 May 2014 22:15:36 +0300 |
From: Maxim Ostapenko <address@hidden>
QEMU already supports /proc/self/{maps,stat,auxv} so addition of
/proc/self/exe is rather trivial.
Fixes https://bugs.launchpad.net/qemu/+bug/1299190
Signed-off-by: Maxim Ostapenko <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>
---
linux-user/syscall.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 9864813..5203cc4 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5225,6 +5225,11 @@ static int do_open(void *cpu_env, const char *pathname,
int flags, mode_t mode)
{ NULL, NULL, NULL }
};
+ if (is_proc_myself(pathname, "exe")) {
+ int execfd = qemu_getauxval(AT_EXECFD);
+ return execfd ? execfd : get_errno(open(exec_path, flags, mode));
+ }
+
for (fake_open = fakes; fake_open->filename; fake_open++) {
if (fake_open->cmp(pathname, fake_open->filename)) {
break;
--
2.0.0.rc0
- [Qemu-devel] [PULL 00/14] linux-user update, riku . voipio, 2014/05/02
- [Qemu-devel] [PULL 01/14] linux-user: Add /proc/self/exe open forwarding,
riku . voipio <=
- [Qemu-devel] [PULL 03/14] linux-user: Move if-elses to a switch statement., riku . voipio, 2014/05/02
- [Qemu-devel] [PULL 06/14] linux-user: avoid using glibc internals in _syscall5 and in definition of target_sigevent struct, riku . voipio, 2014/05/02
- [Qemu-devel] [PULL 02/14] linux-user: Assert stack used for auxvec, envp, argv, riku . voipio, 2014/05/02
- [Qemu-devel] [PULL 11/14] linux-user/elfload.c: Fix incorrect ARM HWCAP bits, riku . voipio, 2014/05/02
- [Qemu-devel] [PULL 08/14] linux-user: rename cpu- uname -> uname, riku . voipio, 2014/05/02
- [Qemu-devel] [PULL 05/14] linux-user: Handle arches with llseek instead of _llseek, riku . voipio, 2014/05/02
- [Qemu-devel] [PULL 04/14] linux-user: Add support for SCM_CREDENTIALS., riku . voipio, 2014/05/02
- [Qemu-devel] [PULL 14/14] linux-user/elfload.c: Support ARM HWCAP2 flags, riku . voipio, 2014/05/02
- [Qemu-devel] [PULL 07/14] linux-user/signal.c: Set fault address in AArch64 signal info, riku . voipio, 2014/05/02
- [Qemu-devel] [PULL 13/14] linux-user/elfload.c: Fix A64 code which was incorrectly acting like A32, riku . voipio, 2014/05/02