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https://github.com/jart/cosmopolitan.git
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Simplify ftrace_hook()
We now have a test to prove that its transitive closure doesn't perform floating point computations.
This commit is contained in:
Justine Tunney
parent
61b9677c05
commit
b6182db813
11 changed files with 142 additions and 85 deletions
45
test/libc/runtime/ftrace_test.c
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45
test/libc/runtime/ftrace_test.c
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@ -0,0 +1,45 @@
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2023 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/mem/gc.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/testlib/testlib.h"
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#include "libc/x/x.h"
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char testlib_enable_tmp_setup_teardown;
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TEST(ftrace, test) {
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const char *ftraceasm;
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testlib_extract("/zip/ftraceasm.txt", "ftraceasm.txt", 0755);
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ftraceasm = _gc(xslurp("ftraceasm.txt", 0));
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#ifdef __x86_64__
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if (strstr(ftraceasm, "%xmm") || strstr(ftraceasm, "%ymm")) {
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#elif defined(__aarch64__)
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if (strstr(ftraceasm, " d0,") || strstr(ftraceasm, " v0.")) {
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#else
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if (0) {
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#endif
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fprintf(stderr,
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"error: ftrace_hook() depends on floating point code\n"
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"you need to objdump o//test/libc/runtime/ftraceasm.elf\n"
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"then compile the guilty module with -mgeneral-regs-only\n");
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exit(1);
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}
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}
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23
test/libc/runtime/prog/ftraceasm.c
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23
test/libc/runtime/prog/ftraceasm.c
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@ -0,0 +1,23 @@
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2023 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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void ftrace_hook(void);
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void _start(void) {
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ftrace_hook();
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}
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@ -6,82 +6,95 @@ PKGS += TEST_LIBC_RUNTIME
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TEST_LIBC_RUNTIME_SRCS := $(wildcard test/libc/runtime/*.c)
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TEST_LIBC_RUNTIME_SRCS_TEST = $(filter %_test.c,$(TEST_LIBC_RUNTIME_SRCS))
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TEST_LIBC_RUNTIME_OBJS = \
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TEST_LIBC_RUNTIME_OBJS = \
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$(TEST_LIBC_RUNTIME_SRCS:%.c=o/$(MODE)/%.o)
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TEST_LIBC_RUNTIME_COMS = \
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TEST_LIBC_RUNTIME_COMS = \
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$(TEST_LIBC_RUNTIME_SRCS:%.c=o/$(MODE)/%.com)
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TEST_LIBC_RUNTIME_BINS = \
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$(TEST_LIBC_RUNTIME_COMS) \
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TEST_LIBC_RUNTIME_BINS = \
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$(TEST_LIBC_RUNTIME_COMS) \
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$(TEST_LIBC_RUNTIME_COMS:%=%.dbg)
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TEST_LIBC_RUNTIME_TESTS = \
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TEST_LIBC_RUNTIME_TESTS = \
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$(TEST_LIBC_RUNTIME_SRCS_TEST:%.c=o/$(MODE)/%.com.ok)
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TEST_LIBC_RUNTIME_CHECKS = \
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TEST_LIBC_RUNTIME_CHECKS = \
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$(TEST_LIBC_RUNTIME_SRCS_TEST:%.c=o/$(MODE)/%.com.runs)
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TEST_LIBC_RUNTIME_DIRECTDEPS = \
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LIBC_CALLS \
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LIBC_FMT \
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LIBC_INTRIN \
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LIBC_LOG \
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LIBC_MEM \
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LIBC_NEXGEN32E \
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LIBC_RUNTIME \
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LIBC_STDIO \
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LIBC_STR \
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LIBC_STUBS \
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LIBC_SYSV \
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LIBC_THREAD \
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LIBC_TESTLIB \
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LIBC_TINYMATH \
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LIBC_X \
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LIBC_ZIPOS \
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TOOL_BUILD_LIB \
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TEST_LIBC_RUNTIME_DIRECTDEPS = \
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LIBC_CALLS \
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LIBC_FMT \
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LIBC_INTRIN \
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LIBC_LOG \
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LIBC_MEM \
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LIBC_NEXGEN32E \
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LIBC_RUNTIME \
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LIBC_STDIO \
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LIBC_STR \
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LIBC_STUBS \
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LIBC_SYSV \
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LIBC_THREAD \
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LIBC_TESTLIB \
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LIBC_TINYMATH \
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LIBC_X \
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LIBC_ZIPOS \
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TOOL_BUILD_LIB \
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THIRD_PARTY_XED
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TEST_LIBC_RUNTIME_DEPS := \
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TEST_LIBC_RUNTIME_DEPS := \
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$(call uniq,$(foreach x,$(TEST_LIBC_RUNTIME_DIRECTDEPS),$($(x))))
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o/$(MODE)/test/libc/runtime/runtime.pkg: \
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$(TEST_LIBC_RUNTIME_OBJS) \
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o/$(MODE)/test/libc/runtime/runtime.pkg: \
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$(TEST_LIBC_RUNTIME_OBJS) \
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$(foreach x,$(TEST_LIBC_RUNTIME_DIRECTDEPS),$($(x)_A).pkg)
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o/$(MODE)/test/libc/runtime/%.com.dbg: \
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$(TEST_LIBC_RUNTIME_DEPS) \
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o/$(MODE)/test/libc/mem/prog/life.elf.zip.o \
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o/$(MODE)/test/libc/runtime/%.o \
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o/$(MODE)/test/libc/runtime/runtime.pkg \
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$(LIBC_TESTMAIN) \
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$(CRT) \
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o/$(MODE)/test/libc/runtime/%.com.dbg: \
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$(TEST_LIBC_RUNTIME_DEPS) \
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o/$(MODE)/test/libc/mem/prog/life.elf.zip.o \
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o/$(MODE)/test/libc/runtime/prog/ftraceasm.txt.zip.o \
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o/$(MODE)/test/libc/runtime/%.o \
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o/$(MODE)/test/libc/runtime/runtime.pkg \
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$(LIBC_TESTMAIN) \
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$(CRT) \
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$(APE_NO_MODIFY_SELF)
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@$(APELINK)
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o/$(MODE)/test/libc/runtime/ape_test.com.dbg: \
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$(TEST_LIBC_RUNTIME_DEPS) \
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o/$(MODE)/test/libc/runtime/ape_test.o \
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o/$(MODE)/test/libc/runtime/runtime.pkg \
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$(LIBC_TESTMAIN) \
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$(CRT) \
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o/$(MODE)/test/libc/runtime/ape_test.com.dbg: \
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$(TEST_LIBC_RUNTIME_DEPS) \
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o/$(MODE)/test/libc/runtime/ape_test.o \
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o/$(MODE)/test/libc/runtime/runtime.pkg \
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$(LIBC_TESTMAIN) \
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$(CRT) \
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$(APE_NO_MODIFY_SELF)
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@$(APELINK)
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$(TEST_LIBC_RUNTIME_OBJS): private \
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DEFAULT_CCFLAGS += \
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$(TEST_LIBC_RUNTIME_OBJS): private \
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DEFAULT_CCFLAGS += \
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-fno-builtin
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o/$(MODE)/test/libc/runtime/getenv_test.com.runs: \
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o/$(MODE)/test/libc/runtime/getenv_test.com.runs: \
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o/$(MODE)/test/libc/runtime/getenv_test.com
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@HELLO=THERE build/runit $@ $<
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o/$(MODE)/test/libc/runtime/itsatrap_test.o: private \
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CFLAGS += \
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-fno-sanitize=all \
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o/$(MODE)/test/libc/runtime/itsatrap_test.o: private \
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CFLAGS += \
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-fno-sanitize=all \
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-ftrapv
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o/$(MODE)/test/libc/runtime/prog/ftraceasm.elf: \
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$(TEST_LIBC_RUNTIME_DEPS) \
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o/$(MODE)/test/libc/runtime/prog/ftraceasm.o \
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o/$(MODE)/test/libc/runtime/runtime.pkg
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@$(ELFLINK)
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o/$(MODE)/test/libc/runtime/prog/ftraceasm.txt: \
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o/$(MODE)/test/libc/runtime/prog/ftraceasm.elf
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@$(OBJDUMP) -d $< >$@
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o/$(MODE)/test/libc/runtime/prog/ftraceasm.txt.zip.o: private \
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ZIPOBJ_FLAGS += \
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-B
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.PHONY: o/$(MODE)/test/libc/runtime
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o/$(MODE)/test/libc/runtime: \
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$(TEST_LIBC_RUNTIME_BINS) \
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o/$(MODE)/test/libc/runtime: \
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$(TEST_LIBC_RUNTIME_BINS) \
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$(TEST_LIBC_RUNTIME_CHECKS)
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