user: compile path.c only once

Also merge bsd-user/path.c and linux-user/path.c.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

2 files changed, 0 insertions, 165 deletions

diff --git a/bsd-user/path.c b/bsd-user/path.c
deleted file mode 100644
index 5c40ec7..0000000
--- a/bsd-user/path.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/* Code to mangle pathnames into those matching a given prefix.
-   eg. open("/lib/foo.so") => open("/usr/gnemul/i386-linux/lib/foo.so");
-
-   The assumption is that this area does not change.
-*/
-#include <sys/types.h>
-#include <sys/param.h>
-#include <dirent.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <stdio.h>
-#include "qemu.h"
-#include "qemu-common.h"
-
-struct pathelem
-{
-    /* Name of this, eg. lib */
-    char *name;
-    /* Full path name, eg. /usr/gnemul/x86-linux/lib. */
-    char *pathname;
-    struct pathelem *parent;
-    /* Children */
-    unsigned int num_entries;
-    struct pathelem *entries[0];
-};
-
-static struct pathelem *base;
-
-/* First N chars of S1 match S2, and S2 is N chars long. */
-static int strneq(const char *s1, unsigned int n, const char *s2)
-{
-    unsigned int i;
-
-    for (i = 0; i < n; i++)
-        if (s1[i] != s2[i])
-            return 0;
-    return s2[i] == 0;
-}
-
-static struct pathelem *add_entry(struct pathelem *root, const char *name);
-
-static struct pathelem *new_entry(const char *root,
-                                  struct pathelem *parent,
-                                  const char *name)
-{
-    struct pathelem *new = malloc(sizeof(*new));
-    new->name = strdup(name);
-    asprintf(&new->pathname, "%s/%s", root, name);
-    new->num_entries = 0;
-    return new;
-}
-
-#define streq(a,b) (strcmp((a), (b)) == 0)
-
-static struct pathelem *add_dir_maybe(struct pathelem *path)
-{
-    DIR *dir;
-
-    if ((dir = opendir(path->pathname)) != NULL) {
-        struct dirent *dirent;
-
-        while ((dirent = readdir(dir)) != NULL) {
-            if (!streq(dirent->d_name,".") && !streq(dirent->d_name,"..")){
-                path = add_entry(path, dirent->d_name);
-            }
-        }
-        closedir(dir);
-    }
-    return path;
-}
-
-static struct pathelem *add_entry(struct pathelem *root, const char *name)
-{
-    root->num_entries++;
-
-    root = realloc(root, sizeof(*root)
-                   + sizeof(root->entries[0])*root->num_entries);
-
-    root->entries[root->num_entries-1] = new_entry(root->pathname, root, name);
-    root->entries[root->num_entries-1]
-        = add_dir_maybe(root->entries[root->num_entries-1]);
-    return root;
-}
-
-/* This needs to be done after tree is stabilized (ie. no more reallocs!). */
-static void set_parents(struct pathelem *child, struct pathelem *parent)
-{
-    unsigned int i;
-
-    child->parent = parent;
-    for (i = 0; i < child->num_entries; i++)
-        set_parents(child->entries[i], child);
-}
-
-/* FIXME: Doesn't handle DIR/.. where DIR is not in emulated dir. */
-static const char *
-follow_path(const struct pathelem *cursor, const char *name)
-{
-    unsigned int i, namelen;
-
-    name += strspn(name, "/");
-    namelen = strcspn(name, "/");
-
-    if (namelen == 0)
-        return cursor->pathname;
-
-    if (strneq(name, namelen, ".."))
-        return follow_path(cursor->parent, name + namelen);
-
-    if (strneq(name, namelen, "."))
-        return follow_path(cursor, name + namelen);
-
-    for (i = 0; i < cursor->num_entries; i++)
-        if (strneq(name, namelen, cursor->entries[i]->name))
-            return follow_path(cursor->entries[i], name + namelen);
-
-    /* Not found */
-    return NULL;
-}
-
-void init_paths(const char *prefix)
-{
-    char pref_buf[PATH_MAX];
-
-    if (prefix[0] == '\0' ||
-        !strcmp(prefix, "/"))
-        return;
-
-    if (prefix[0] != '/') {
-        char *cwd = getcwd(NULL, 0);
-        size_t pref_buf_len = sizeof(pref_buf);
-
-        if (!cwd)
-            abort();
-        pstrcpy(pref_buf, sizeof(pref_buf), cwd);
-        pstrcat(pref_buf, pref_buf_len, "/");
-        pstrcat(pref_buf, pref_buf_len, prefix);
-        free(cwd);
-    } else
-        pstrcpy(pref_buf, sizeof(pref_buf), prefix + 1);
-
-    base = new_entry("", NULL, pref_buf);
-    base = add_dir_maybe(base);
-    if (base->num_entries == 0) {
-        free (base);
-        base = NULL;
-    } else {
-        set_parents(base, base);
-    }
-}
-
-/* Look for path in emulation dir, otherwise return name. */
-const char *path(const char *name)
-{
-    /* Only do absolute paths: quick and dirty, but should mostly be OK.
-       Could do relative by tracking cwd. */
-    if (!base || name[0] != '/')
-        return name;
-
-    return follow_path(base, name) ?: name;
-}
diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h
index d375611..cbee3e7 100644
--- a/bsd-user/qemu.h
+++ b/bsd-user/qemu.h
@@ -137,8 +137,6 @@ abi_long do_openbsd_syscall(void *cpu_env, int num, abi_long arg1,
 void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
 extern THREAD CPUState *thread_env;
 void cpu_loop(CPUState *env, enum BSDType bsd_type);
-void init_paths(const char *prefix);
-const char *path(const char *pathname);
 char *target_strerror(int err);
 int get_osversion(void);
 void fork_start(void);