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| author | Oneric <oneric@oneric.stub> | 2021-08-26 23:02:31 +0200 |
|---|---|---|
| committer | Oneric <oneric@oneric.stub> | 2022-07-03 16:19:06 +0200 |
| commit | 9987eef44384b368670d962fca57b5994b216499 (patch) | |
| tree | 07c6e526a03faa2d02b3d437fc79720b01a4e43c /configure.ac | |
| parent | f1d19df9011ba5824bed137f4cc170d882514f33 (diff) | |
| download | libass-9987eef44384b368670d962fca57b5994b216499.tar.bz2 libass-9987eef44384b368670d962fca57b5994b216499.tar.xz | |
Add fuzzing utility
Parses its input and renders every event
at its start, middle and end.
By default it is built as a simple standalone program,
similar to profile to consume a single already existing input.
By setting ASS_FUZZMODE in FUZZ_CPPFLAGS alternative buildmodes offering
integration into AFL++ or LLVM's libFuzzer can be selected.
As libFuzzer links in its own main function, it cannot be used during
configure else the tests fail. Instead 'clang -fsanitize=fuzzer-no-link'
can be set together with FUZZ_LDFLAGS='-fsanitize=fuzzer' to only link
in the main function into the desired binary.
As an alternative to FUZZ_LDFLAGS, it is also possible to change
the compiler after configure via make CC=...
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 7bfd625..f87f855 100644 --- a/configure.ac +++ b/configure.ac @@ -22,6 +22,8 @@ AC_ARG_ENABLE([compare], AS_HELP_STRING([--enable-compare], [enable compare program (requires libpng) @<:@default=no@:>@])) AC_ARG_ENABLE([profile], AS_HELP_STRING([--enable-profile], [enable profiling program @<:@default=no@:>@])) +AC_ARG_ENABLE([fuzz], AS_HELP_STRING([--enable-fuzz], + [enable fuzzing consumer @<:@default=no@:>@])) AC_ARG_ENABLE([fontconfig], AS_HELP_STRING([--disable-fontconfig], [disable fontconfig support @<:@default=check@:>@])) AC_ARG_ENABLE([directwrite], AS_HELP_STRING([--disable-directwrite], @@ -35,6 +37,12 @@ AC_ARG_ENABLE([asm], AS_HELP_STRING([--disable-asm], AC_ARG_ENABLE([large-tiles], AS_HELP_STRING([--enable-large-tiles], [use larger tiles in the rasterizer (better performance, slightly worse quality) @<:@default=disabled@:>@])) +AC_ARG_VAR([FUZZ_LDFLAGS], + [Optional special linking flags only used for the fuzzer binary.]) +AC_ARG_VAR([FUZZ_CPPFLAGS], + [If fuzzing program is enabled, set this to select alternative modes; see fuzzer source for options.]) +FUZZ_CPPFLAGS="${FUZZ_CPPFLAGS:--DASS_FUZZMODE=0}" + # Checks for available libraries and define corresponding C Macros # Start with system libs, then check everything else via pkg-config AS_IF([test "x$ac_cv_header_iconv_h" = xyes], [ @@ -323,6 +331,7 @@ AM_CONDITIONAL([ENABLE_LARGE_TILES], [test "x$enable_large_tiles" = xyes]) AM_CONDITIONAL([ENABLE_COMPARE], [test "x$enable_compare" = xyes && test "x$libpng" = xtrue]) AM_CONDITIONAL([ENABLE_TEST], [test "x$enable_test" = xyes && test "x$libpng" = xtrue]) AM_CONDITIONAL([ENABLE_PROFILE], [test "x$enable_profile" = xyes]) +AM_CONDITIONAL([ENABLE_FUZZ], [test "x$enable_fuzz" = xyes]) AM_CONDITIONAL([FONTCONFIG], [test "x$fontconfig" = xtrue]) AM_CONDITIONAL([CORETEXT], [test "x$coretext" = xtrue]) |