diff mbox series

[PULL,43/57] oslib-posix: default exec_dir to bindir

Message ID 20200919155916.1046398-44-pbonzini@redhat.com
State New
Headers show
Series Misc patches for 2020-09-19 | expand

Commit Message

Paolo Bonzini Sept. 19, 2020, 3:59 p.m. UTC 
If the exec_dir cannot be retrieved, just assume it's the installation
directory that was specified at configure time.  This makes it simpler
to reason about what the callers will do if they get back an empty
path.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build        |  2 +-
 util/oslib-posix.c | 23 ++++++++---------------
 util/oslib-win32.c |  4 +++-
 3 files changed, 12 insertions(+), 17 deletions(-)
diff mbox series

Patch

diff --git a/meson.build b/meson.build
index d5ab4bde2b..1f8487eacf 100644
--- a/meson.build
+++ b/meson.build
@@ -566,7 +566,7 @@  config_host_data.set('QEMU_VERSION_MINOR', meson.project_version().split('.')[1]
 config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2])
 
 arrays = ['CONFIG_AUDIO_DRIVERS', 'CONFIG_BDRV_RW_WHITELIST', 'CONFIG_BDRV_RO_WHITELIST']
-strings = ['HOST_DSOSUF', 'CONFIG_IASL', 'qemu_confdir', 'qemu_datadir',
+strings = ['HOST_DSOSUF', 'CONFIG_IASL', 'bindir', 'qemu_confdir', 'qemu_datadir',
            'qemu_moddir', 'qemu_localstatedir', 'qemu_helperdir', 'qemu_localedir',
            'qemu_icondir', 'qemu_desktopdir', 'qemu_firmwarepath']
 foreach k, v: config_host
diff --git a/util/oslib-posix.c b/util/oslib-posix.c
index 0dd8d24076..ce44380f09 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -358,15 +358,14 @@  void qemu_set_tty_echo(int fd, bool echo)
     tcsetattr(fd, TCSANOW, &tty);
 }
 
-static char exec_dir[PATH_MAX];
+static const char *exec_dir;
 
 void qemu_init_exec_dir(const char *argv0)
 {
-    char *dir;
     char *p = NULL;
     char buf[PATH_MAX];
 
-    if (exec_dir[0]) {
+    if (exec_dir) {
         return;
     }
 
@@ -425,20 +424,14 @@  void qemu_init_exec_dir(const char *argv0)
 #endif
     /* If we don't have any way of figuring out the actual executable
        location then try argv[0].  */
-    if (!p) {
-        if (!argv0) {
-            return;
-        }
+    if (!p && argv0) {
         p = realpath(argv0, buf);
-        if (!p) {
-            return;
-        }
     }
-    dir = g_path_get_dirname(p);
-
-    pstrcpy(exec_dir, sizeof(exec_dir), dir);
-
-    g_free(dir);
+    if (p) {
+        exec_dir = g_path_get_dirname(p);
+    } else {
+        exec_dir = CONFIG_BINDIR;
+    }
 }
 
 const char *qemu_get_exec_dir(void)
diff --git a/util/oslib-win32.c b/util/oslib-win32.c
index 1a33912944..051afb217b 100644
--- a/util/oslib-win32.c
+++ b/util/oslib-win32.c
@@ -315,7 +315,7 @@  void qemu_set_tty_echo(int fd, bool echo)
     }
 }
 
-static char *exec_dir;
+static const char *exec_dir;
 
 void qemu_init_exec_dir(const char *argv0)
 {
@@ -341,6 +341,8 @@  void qemu_init_exec_dir(const char *argv0)
     *p = 0;
     if (access(buf, R_OK) == 0) {
         exec_dir = g_strdup(buf);
+    } else {
+        exec_dir = CONFIG_BINDIR;
     }
 }