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author | Carlos Eduardo Seo <carlos.seo@arm.com> | 2022-08-08 16:09:37 -0300 |
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committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2022-11-22 14:31:25 +0000 |
commit | eb7d21e59be30fcd837961bc4a0f7b48a56f2cbb (patch) | |
tree | c9121009c4db61bb8765b0c658b6ccf5904e2801 /sysdeps | |
parent | 36d565f7e3ac9e1d73ef9921c24bbcd0cfd1ade4 (diff) | |
download | glibc-eb7d21e59be30fcd837961bc4a0f7b48a56f2cbb.tar.gz glibc-eb7d21e59be30fcd837961bc4a0f7b48a56f2cbb.tar.xz glibc-eb7d21e59be30fcd837961bc4a0f7b48a56f2cbb.zip |
cheri: stdio-common: Add test for %#p printf modifier
Testcase for printing capabilities.
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/aarch64/Makefile | 6 | ||||
-rw-r--r-- | sysdeps/aarch64/morello/tst-printf-cap.c | 95 |
2 files changed, 101 insertions, 0 deletions
diff --git a/sysdeps/aarch64/Makefile b/sysdeps/aarch64/Makefile index 9d6e16f66e..560e0e9c8f 100644 --- a/sysdeps/aarch64/Makefile +++ b/sysdeps/aarch64/Makefile @@ -68,3 +68,9 @@ endif ifeq ($(subdir),malloc) sysdep_malloc_debug_routines = __mtag_tag_zero_region __mtag_tag_region endif + +ifeq (yes,$(aarch64-purecap)) +ifeq ($(subdir),stdio-common) +tests += tst-printf-cap +endif +endif diff --git a/sysdeps/aarch64/morello/tst-printf-cap.c b/sysdeps/aarch64/morello/tst-printf-cap.c new file mode 100644 index 0000000000..4d0f58fcb5 --- /dev/null +++ b/sysdeps/aarch64/morello/tst-printf-cap.c @@ -0,0 +1,95 @@ +/* Check printf for capabilities functionality. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#include <sys/mman.h> +#include <support/check.h> +#include <support/xunistd.h> +#include <support/test-driver.h> + +int check_match (char *ptr, const char *pattern) +{ + char str[100]; + sprintf (str, "%#p", ptr); + verbose_printf ("Test permission \"%s\" in \"%s\".\n", pattern, str); + if (!strstr(str, pattern)) + { + printf ("FAIL: permission \"%s\" in \"%s\".\n", pattern, str); + return 1; + } + return 0; +} + +int check_bounds (char *ptr, uint64_t len) +{ + char str[100]; + char u_bound[100]; + sprintf (str, "%#p", ptr); + sprintf (u_bound, "%p", (ptr + len)); + verbose_printf ("Test bounds \"%s\" in \"%s\"\n", u_bound, str); + if (!strstr (str, u_bound)) + { + printf ("FAIL: bounds \"%s\" in \"%s\"\n", u_bound, str); + return 1; + } + return 0; +} + +static void * +map (int prot) +{ + return xmmap (0, 16, prot, MAP_ANONYMOUS | MAP_PRIVATE, -1); +} + +static int +do_test (void) +{ + static const int x; + static int y; + void *r_global = (void *) &x; + void *rw_global = &y; + void *rx_global = (void *) do_test; + void *rw_malloc = malloc (16); + void *none_map = map (PROT_NONE); + void *r_map = map (PROT_READ); + void *rw_map = map (PROT_READ | PROT_WRITE); + void *rx_map = map (PROT_READ | PROT_EXEC); + void *rwx_map = map (PROT_READ | PROT_WRITE | PROT_EXEC); + int ret = 0; + + /* Test permissions. */ + ret += check_match (none_map, "[,"); + ret += check_match (r_global, "[rR,"); + ret += check_match (r_map, "[rR,"); + ret += check_match (rw_global, "[rwRW,"); + ret += check_match (rw_malloc, "[rwRW,"); + ret += check_match (rw_map, "[rwRW,"); + ret += check_match (rx_global, "[rxRE,"); + ret += check_match (rx_map, "[rxRE,"); + ret += check_match (rwx_map, "[rwxRWE,"); + + /* Test bounds. */ + ret += check_bounds (rw_malloc, 16); + + return ret; +} + +#include <support/test-driver.c> |