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elf: use discovered root when decoding symbols

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This commit is contained in:
Christian Hergert
2021-02-24 19:05:43 -08:00
parent bd8a8ada26
commit 9e823c57ce
1 changed files with 8 additions and 20 deletions
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28
src/libsysprof/sysprof-elf-symbol-resolver.c
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@ -190,6 +190,7 @@ sysprof_elf_symbol_resolver_load (SysprofSymbolResolver *resolver,
static bin_file_t *
sysprof_elf_symbol_resolver_get_bin_file (SysprofElfSymbolResolver *self,
const gchar *root,
const gchar *filename)
{
bin_file_t *bin_file;
@ -200,31 +201,18 @@ sysprof_elf_symbol_resolver_get_bin_file (SysprofElfSymbolResolver *self,
if (bin_file == NULL)
{
g_autofree gchar *path = NULL;
const gchar *alternate = filename;
const gchar * const *dirs;
dirs = (const gchar * const *)(gpointer)self->debug_dirs->data;
/*
* If we are in a new mount namespace, then rely on the sysprof_symbol_dirs
* to find us a locate to resolve the file where the CRC will match.
*
* TODO: We need to translate the path here so that we can locate the
* binary behind it (which then has links to the debug file in
* the section header).
*/
if (g_str_has_prefix (filename, "/newroot/"))
alternate += strlen ("/newroot");
if (root && filename[0] != '/' && filename[0] != '[')
alternate = path = g_build_filename (root, filename, NULL);
else if (is_flatpak () && g_str_has_prefix (filename, "/usr/"))
alternate = path = g_build_filename ("/var/run/host", alternate, NULL);
if (is_flatpak () && g_str_has_prefix (filename, "/usr/"))
{
g_autofree gchar *path = g_build_filename ("/var/run/host", alternate, NULL);
bin_file = bin_file_new (path, dirs);
}
else
{
bin_file = bin_file_new (alternate, dirs);
}
bin_file = bin_file_new (alternate, dirs);
g_hash_table_insert (self->bin_files, g_strdup (filename), bin_file);
}
@ -379,7 +367,7 @@ sysprof_elf_symbol_resolver_resolve_full (SysprofElfSymbolResolver *self,
address -= map->start;
address += map->offset;
bin_file = sysprof_elf_symbol_resolver_get_bin_file (self, map->filename);
bin_file = sysprof_elf_symbol_resolver_get_bin_file (self, lookaside->root, map->filename);
g_assert (bin_file != NULL);