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[sanitizer] LibraryNameIs in sanitizer_linux

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llvm-svn: 181787
This commit is contained in:
Sergey Matveev 2013-05-14 13:24:46 +00:00
parent 14b56186ab
commit af05543c86
3 changed files with 40 additions and 0 deletions
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12
compiler-rt/lib/sanitizer_common/sanitizer_linux.cc
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@ -854,6 +854,18 @@ void AdjustStackSizeLinux(void *attr_, int verbosity) {
}
}
// Match full names of the form /path/to/base_name{-,.}*
bool LibraryNameIs(const char *full_name, const char *base_name) {
const char *name = full_name;
// Strip path.
while (*name != '\0') name++;
while (name > full_name && *name != '/') name--;
if (*name == '/') name++;
uptr base_name_length = internal_strlen(base_name);
if (internal_strncmp(name, base_name, base_name_length)) return false;
return (name[base_name_length] == '-' || name[base_name_length] == '.');
}
} // namespace __sanitizer
#endif // SANITIZER_LINUX

4
compiler-rt/lib/sanitizer_common/sanitizer_linux.h
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@ -56,6 +56,10 @@ void AdjustStackSizeLinux(void *attr, int verbosity);
// Exposed for testing.
uptr ThreadDescriptorSize();
// Matches a library's file name against a base name (stripping path and version
// information).
bool LibraryNameIs(const char *full_name, const char *base_name);
} // namespace __sanitizer
#endif // SANITIZER_LINUX_H

24
compiler-rt/lib/sanitizer_common/tests/sanitizer_linux_test.cc
View File

@ -224,6 +224,30 @@ TEST(SanitizerLinux, ThreadDescriptorSize) {
}
#endif
TEST(SanitizerCommon, LibraryNameIs) {
EXPECT_FALSE(LibraryNameIs("", ""));
char full_name[256];
const char *paths[] = { "", "/", "/path/to/" };
const char *suffixes[] = { "", "-linux", ".1.2", "-linux.1.2" };
const char *base_names[] = { "lib", "lib.0", "lib-i386" };
const char *wrong_names[] = { "", "lib.9", "lib-x86_64" };
for (uptr i = 0; i < ARRAY_SIZE(paths); i++)
for (uptr j = 0; j < ARRAY_SIZE(suffixes); j++) {
for (uptr k = 0; k < ARRAY_SIZE(base_names); k++) {
internal_snprintf(full_name, ARRAY_SIZE(full_name), "%s%s%s.so",
paths[i], base_names[k], suffixes[j]);
EXPECT_TRUE(LibraryNameIs(full_name, base_names[k]))
<< "Full name " << full_name
<< " doesn't match base name " << base_names[k];
for (uptr m = 0; m < ARRAY_SIZE(wrong_names); m++)
EXPECT_FALSE(LibraryNameIs(full_name, wrong_names[m]))
<< "Full name " << full_name
<< " matches base name " << wrong_names[m];
}
}
}
} // namespace __sanitizer
#endif // SANITIZER_LINUX