1 | /* Check LD_AUDIT for aarch64 specific ABI. |
2 | Copyright (C) 2022-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <assert.h> |
20 | #include <link.h> |
21 | #include <string.h> |
22 | #include <stdio.h> |
23 | #include <stdlib.h> |
24 | #include "tst-audit26mod.h" |
25 | |
26 | #define TEST_NAME "tst-audit26" |
27 | |
28 | #define AUDIT26_COOKIE 0 |
29 | |
30 | unsigned int |
31 | la_version (unsigned int v) |
32 | { |
33 | return v; |
34 | } |
35 | |
36 | unsigned int |
37 | la_objopen (struct link_map *map, Lmid_t lmid, uintptr_t *cookie) |
38 | { |
39 | const char *p = strrchr (map->l_name, '/'); |
40 | const char *l_name = p == NULL ? map->l_name : p + 1; |
41 | uintptr_t ck = -1; |
42 | if (strncmp (l_name, TEST_NAME, strlen (TEST_NAME)) == 0) |
43 | ck = AUDIT26_COOKIE; |
44 | *cookie = ck; |
45 | printf (format: "objopen: %ld, %s [cookie=%ld]\n" , lmid, l_name, ck); |
46 | return ck == -1 ? 0 : LA_FLG_BINDFROM | LA_FLG_BINDTO; |
47 | } |
48 | |
49 | ElfW(Addr) |
50 | la_aarch64_gnu_pltenter (ElfW(Sym) *sym __attribute__ ((unused)), |
51 | unsigned int ndx __attribute__ ((unused)), |
52 | uintptr_t *refcook, uintptr_t *defcook, |
53 | La_aarch64_regs *regs, unsigned int *flags, |
54 | const char *symname, long int *framesizep) |
55 | { |
56 | printf (format: "pltenter: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n" , |
57 | symname, (long int) sym->st_value, ndx, *flags); |
58 | |
59 | if (strcmp (symname, "tst_audit26_func" ) == 0) |
60 | { |
61 | assert (regs->lr_xreg[0] == ARG1); |
62 | assert (regs->lr_xreg[1] == ARG2); |
63 | assert (regs->lr_xreg[2] == ARG3); |
64 | } |
65 | else |
66 | abort (); |
67 | |
68 | assert (regs->lr_vpcs == 0); |
69 | |
70 | /* Clobber 'x8'. */ |
71 | asm volatile ("mov x8, -1" : : : "x8" ); |
72 | |
73 | *framesizep = 1024; |
74 | |
75 | return sym->st_value; |
76 | } |
77 | |
78 | unsigned int |
79 | la_aarch64_gnu_pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, |
80 | uintptr_t *defcook, |
81 | const struct La_aarch64_regs *inregs, |
82 | struct La_aarch64_retval *outregs, const char *symname) |
83 | { |
84 | printf (format: "pltexit: symname=%s, st_value=%#lx, ndx=%u\n" , |
85 | symname, (long int) sym->st_value, ndx); |
86 | |
87 | if (strcmp (symname, "tst_audit26_func" ) == 0) |
88 | { |
89 | assert (inregs->lr_xreg[0] == ARG1); |
90 | assert (inregs->lr_xreg[1] == ARG2); |
91 | assert (inregs->lr_xreg[2] == ARG3); |
92 | } |
93 | else |
94 | abort (); |
95 | |
96 | assert (inregs->lr_vpcs == 0); |
97 | assert (outregs->lrv_vpcs == 0); |
98 | |
99 | /* Clobber 'x8'. */ |
100 | asm volatile ("mov x8, -1" : : : "x8" ); |
101 | |
102 | return 0; |
103 | } |
104 | |