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nolibc updates for v6.2

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This branch further improves nolibc testing.
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Merge tag 'nolibc.2022.12.02a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull nolibc updates from Paul McKenney:

 - Further improvements to nolibc testing

* tag 'nolibc.2022.12.02a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  selftests/nolibc: Always rebuild the sysroot when running a test
  selftests/nolibc: Add 7 tests for memcmp()
This commit is contained in:
Linus Torvalds 2022-12-12 08:08:12 -08:00
commit 74dc488b2a
2 changed files with 10 additions and 0 deletions
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3
tools/testing/selftests/nolibc/Makefile
View File

@ -95,6 +95,7 @@ all: run
sysroot: sysroot/$(ARCH)/include
sysroot/$(ARCH)/include:
$(Q)rm -rf sysroot/$(ARCH) sysroot/sysroot
$(QUIET_MKDIR)mkdir -p sysroot
$(Q)$(MAKE) -C ../../../include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone
$(Q)mv sysroot/sysroot sysroot/$(ARCH)
@ -133,3 +134,5 @@ clean:
$(Q)rm -rf initramfs
$(call QUIET_CLEAN, run.out)
$(Q)rm -rf run.out
.PHONY: sysroot/$(ARCH)/include

7
tools/testing/selftests/nolibc/nolibc-test.c
View File

@ -565,6 +565,13 @@ int run_stdlib(int min, int max)
CASE_TEST(strchr_foobar_z); EXPECT_STRZR(1, strchr("foobar", 'z')); break;
CASE_TEST(strrchr_foobar_o); EXPECT_STREQ(1, strrchr("foobar", 'o'), "obar"); break;
CASE_TEST(strrchr_foobar_z); EXPECT_STRZR(1, strrchr("foobar", 'z')); break;
CASE_TEST(memcmp_20_20); EXPECT_EQ(1, memcmp("aaa\x20", "aaa\x20", 4), 0); break;
CASE_TEST(memcmp_20_60); EXPECT_LT(1, memcmp("aaa\x20", "aaa\x60", 4), 0); break;
CASE_TEST(memcmp_60_20); EXPECT_GT(1, memcmp("aaa\x60", "aaa\x20", 4), 0); break;
CASE_TEST(memcmp_20_e0); EXPECT_LT(1, memcmp("aaa\x20", "aaa\xe0", 4), 0); break;
CASE_TEST(memcmp_e0_20); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x20", 4), 0); break;
CASE_TEST(memcmp_80_e0); EXPECT_LT(1, memcmp("aaa\x80", "aaa\xe0", 4), 0); break;
CASE_TEST(memcmp_e0_80); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x80", 4), 0); break;
case __LINE__:
return ret; /* must be last */
/* note: do not set any defaults so as to permit holes above */