ATF_TC_BODY(symbol_lookup, tc)
{
GElf_Sym main_sym, r_debug_state_sym;
struct proc_handle *phdl;
u_long saved;
int error;
phdl = start_prog(tc, false);
error = proc_name2sym(phdl, target_prog_file, "main", &main_sym, NULL);
ATF_REQUIRE_EQ_MSG(error, 0, "failed to look up 'main'");
error = proc_name2sym(phdl, ldelf_object, "r_debug_state",
&r_debug_state_sym, NULL);
ATF_REQUIRE_EQ_MSG(error, 0, "failed to look up 'r_debug_state'");
set_bkpt(phdl, r_debug_state_sym.st_value, &saved);
ATF_CHECK_EQ_MSG(proc_continue(phdl), 0, "failed to resume execution");
verify_bkpt(phdl, &r_debug_state_sym, "r_debug_state", ldelf_object);
remove_bkpt(phdl, r_debug_state_sym.st_value, saved);
set_bkpt(phdl, main_sym.st_value, &saved);
ATF_CHECK_EQ_MSG(proc_continue(phdl), 0, "failed to resume execution");
verify_bkpt(phdl, &main_sym, "main", target_prog_file);
remove_bkpt(phdl, main_sym.st_value, saved);
ATF_CHECK_EQ_MSG(proc_continue(phdl), 0, "failed to resume execution");
proc_free(phdl);
}
ATF_TC_BODY(map_alias_name2sym, tc)
{
GElf_Sym sym1, sym2;
prsyminfo_t si1, si2;
struct proc_handle *phdl;
int error;
phdl = start_prog(tc, false);
/* Initialize the rtld_db handle. */
(void)proc_rdagent(phdl);
/*
* Make sure that "target_prog:main" and "a.out:main" return the same
* symbol.
*/
error = proc_name2sym(phdl, target_prog_file, "main", &sym1, &si1);
ATF_REQUIRE_EQ_MSG(error, 0, "failed to look up 'main' via %s",
target_prog_file);
error = proc_name2sym(phdl, aout_object, "main", &sym2, &si2);
ATF_REQUIRE_EQ_MSG(error, 0, "failed to look up 'main' via %s",
aout_object);
ATF_CHECK_EQ(memcmp(&sym1, &sym2, sizeof(sym1)), 0);
ATF_CHECK_EQ(si1.prs_id, si2.prs_id);
ATF_CHECK_EQ_MSG(proc_continue(phdl), 0, "failed to resume execution");
proc_free(phdl);
}
ATF_TC_BODY(symbol_lookup, tc)
{
GElf_Sym main_sym, r_debug_state_sym;
struct proc_handle *phdl;
proc_breakpoint_t saved;
int error;
phdl = start_prog(tc, false);
error = proc_name2sym(phdl, target_prog_file, "main", &main_sym, NULL);
ATF_REQUIRE_EQ_MSG(error, 0, "failed to look up 'main'");
error = proc_name2sym(phdl, ldelf_object, r_debug_state,
&r_debug_state_sym, NULL);
ATF_REQUIRE_EQ_MSG(error, 0, "failed to look up '%s'", r_debug_state);
set_bkpt(phdl, (uintptr_t)r_debug_state_sym.st_value, &saved);
ATF_CHECK_EQ_MSG(proc_continue(phdl), 0, "failed to resume execution");
verify_bkpt(phdl, &r_debug_state_sym, r_debug_state, ldelf_object);
remove_bkpt(phdl, (uintptr_t)r_debug_state_sym.st_value, &saved);
set_bkpt(phdl, (uintptr_t)main_sym.st_value, &saved);
ATF_CHECK_EQ_MSG(proc_continue(phdl), 0, "failed to resume execution");
verify_bkpt(phdl, &main_sym, "main", target_prog_file);
remove_bkpt(phdl, (uintptr_t)main_sym.st_value, &saved);
ATF_CHECK_EQ_MSG(proc_detach(phdl, PRELEASE_HANG), 0, "failed to detach");
proc_free(phdl);
}
int
main(int argc, char *argv[])
{
prmap_t *map = NULL;
struct proc_handle *phdl;
GElf_Sym sym;
proc_create("./t3-name2sym", argv, NULL, NULL, &phdl);
memset(&sym, 0, sizeof(sym));
assert(proc_name2sym(phdl, "ld-elf.so.1", "r_debug_state", &sym) == 0);
printf("0x%lx\n", sym.st_value);
assert(proc_name2sym(phdl, "t3-name2sym", "main", &sym) == 0);
printf("0x%lx\n", sym.st_value);
}
ATF_TC_BODY(symbol_sort_underscore, tc)
{
char symname[32];
GElf_Sym foo_sym;
struct proc_handle *phdl;
int error;
phdl = start_prog(tc, true);
error = proc_name2sym(phdl, target_prog_file, "foo", &foo_sym, NULL);
ATF_REQUIRE_MSG(error == 0, "failed to look up 'foo' in %s",
target_prog_file);
error = proc_addr2sym(phdl, foo_sym.st_value, symname, sizeof(symname),
&foo_sym);
ATF_REQUIRE_MSG(error == 0, "failed to resolve 'foo' by addr");
ATF_REQUIRE_MSG(strcmp(symname, "foo") == 0,
"unexpected symbol name '%s'", symname);
}
ATF_TC_BODY(symbol_sort_local, tc)
{
char symname[32];
GElf_Sym bar_sym;
struct proc_handle *phdl;
int error;
phdl = start_prog(tc, true);
error = proc_name2sym(phdl, target_prog_file, "bar", &bar_sym, NULL);
ATF_REQUIRE_MSG(error == 0, "failed to look up 'bar' in %s",
target_prog_file);
ATF_REQUIRE(GELF_ST_BIND(bar_sym.st_info) == STB_LOCAL);
error = proc_addr2sym(phdl, bar_sym.st_value, symname, sizeof(symname),
&bar_sym);
ATF_REQUIRE_MSG(error == 0, "failed to resolve 'bar' by addr");
ATF_REQUIRE_MSG(strcmp(symname, "baz") == 0,
"unexpected symbol name '%s'", symname);
ATF_REQUIRE(GELF_ST_BIND(bar_sym.st_info) == STB_GLOBAL);
}