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From: Szabolcs Nagy <nsz@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc/arm/morello/main] cheri: stdio-common: Add test for %#p printf modifier Date: Wed, 23 Nov 2022 14:49:47 +0000 (GMT) [thread overview] Message-ID: <20221123144947.10E5C3852C5F@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=eb7d21e59be30fcd837961bc4a0f7b48a56f2cbb commit eb7d21e59be30fcd837961bc4a0f7b48a56f2cbb Author: Carlos Eduardo Seo <carlos.seo@arm.com> Date: Mon Aug 8 16:09:37 2022 -0300 cheri: stdio-common: Add test for %#p printf modifier Testcase for printing capabilities. Diff: --- sysdeps/aarch64/Makefile | 6 ++ sysdeps/aarch64/morello/tst-printf-cap.c | 95 ++++++++++++++++++++++++++++++++ 2 files changed, 101 insertions(+) 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>
next reply other threads:[~2022-11-23 14:49 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-11-23 14:49 Szabolcs Nagy [this message] -- strict thread matches above, loose matches on Subject: below -- 2022-10-27 13:59 Szabolcs Nagy 2022-10-26 15:21 Szabolcs Nagy 2022-10-26 14:51 Szabolcs Nagy
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