352e1d0fc4
commit 2a0167a merged alias and asm symbol renaming, but broke
semantics of aliases, see testcase. Basically the difference between
the two is that an asm rename doesn't generate a new symbol, i.e. with
int foo __asm__("bar");
all source reference to 'foo' will be to 'bar', nothing of the name
'foo' will remain in the object file, and for instance reference to
'foo' from other compilation units won't be resolved to this one.
Aliases OTOH create an additional symbol. With:
void target (void) { return; }
void afunc (void) __attribute__((alias("target")));
reference to 'afunc' will remain 'afunc' in the object file. It will
generate two symbols, 'afunc' and 'target' referring to the same entity.
This difference matters if other compilation units make references to
'afunc'.
A side requirement of this is that for alias to work that the target
symbol needs to be defined in the same unit. For TCC we even require a
stricter variant: it must be defined before the alias is created.
Now, with this I merely re-instated the old flow of events before above
commit. It didn't seem useful anymore to place both names in the
asm_label member of attributes, and the asm_label member of Sym now
again only needs the hold the __asm__ rename.
It also follows that tcc_predefs.h can't make use of attribute alias to
e.g. map __builtin_memcpy to __bound_memcpy (simply because the latter
isn't defined in all units), but rather must use __asm__ renaming, which
in turn means that the underscore handling needs to be done by hand.
159 lines
4.8 KiB
Makefile
159 lines
4.8 KiB
Makefile
TOP = ../..
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include $(TOP)/Makefile
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SRC = $(TOPSRC)/tests/tests2
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VPATH = $(SRC)
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TESTS = $(patsubst %.c,%.test,\
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$(sort $(notdir $(wildcard $(SRC)/??_*.c)))\
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$(sort $(notdir $(wildcard $(SRC)/???_*.c))))
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# some tests do not pass on all platforms, remove them for now
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SKIP = 34_array_assignment.test # array assignment is not in C standard
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ifeq ($(CONFIG_arm_eabi),yes) # not ARM soft-float
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SKIP += 22_floating_point.test
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endif
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ifdef CONFIG_OSX
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SKIP += 40_stdio.test 42_function_pointer.test
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SKIP += 113_btdll.test # no shared lib support yet
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endif
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ifeq ($(ARCH),x86_64)
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SKIP += 73_arm64.test
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endif
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ifeq (,$(filter i386,$(ARCH)))
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SKIP += 98_al_ax_extend.test 99_fastcall.test
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endif
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ifeq (,$(filter i386 x86_64,$(ARCH)))
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SKIP += 85_asm-outside-function.test # x86 asm
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SKIP += 113_btdll.test # dll support needed
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endif
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ifeq (,$(filter i386 x86_64 arm arm64 riscv64,$(ARCH)))
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SKIP += 112_backtrace.test
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SKIP += 114_bound_signal.test
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SKIP += 115_bound_setjmp.test
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SKIP += 116_bound_setjmp2.test
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endif
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ifeq (-$(CONFIG_musl)-,-yes-)
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SKIP += 112_backtrace.test
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endif
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ifeq (-$(findstring gcc,$(CC))-,--)
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SKIP += $(patsubst %.expect,%.test,$(GEN-ALWAYS))
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endif
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ifeq (-$(CONFIG_WIN32)-$(CONFIG_i386)$(CONFIG_arm)-,--yes-)
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SKIP += 95_bitfields%.test # type_align is different on 32bit-non-windows
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endif
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ifeq (-$(CONFIG_WIN32)-,-yes-)
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SKIP += 106_pthread.test # No pthread support
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SKIP += 114_bound_signal.test # No pthread support
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endif
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# Some tests might need arguments
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ARGS =
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31_args.test : ARGS = arg1 arg2 arg3 arg4 arg5
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46_grep.test : ARGS = '[^* ]*[:a:d: ]+\:\*-/: $$' $(SRC)/46_grep.c
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# And some tests don't test the right thing with -run
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NORUN =
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42_function_pointer.test : NORUN = true
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# Some tests might need different flags
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FLAGS =
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76_dollars_in_identifiers.test : FLAGS += -fdollars-in-identifiers
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# These tests run several snippets from the same file one by one
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60_errors_and_warnings.test : FLAGS += -dt
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96_nodata_wanted.test : FLAGS += -dt
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# Always generate certain .expects (don't put these in the GIT),
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GEN-ALWAYS =
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# GEN-ALWAYS += 95_bitfields.expect # does not work
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# using the ms compiler for the really ms-compatible bitfields
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95_bitfields_ms.test : GEN = $(GEN-MSC)
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# this test compiles/links two files:
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104_inline.test : FLAGS += $(subst 104,104+,$1)
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104_inline.test : GEN = $(GEN-TCC)
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# this test needs two files, and we want to invoke the linker
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120_alias.test : FLAGS += $(subst 120,120+,$1)
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120_alias.test : GEN = $(GEN-TCC)
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120_alias.test : NORUN = true
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# this test needs pthread
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106_pthread.test: FLAGS += -pthread
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106_pthread.test: NORUN = true
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# constructor/destructor
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108_constructor.test: NORUN = true
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112_backtrace.test: FLAGS += -dt -b
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112_backtrace.test 113_btdll.test: FILTER += \
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-e 's;[0-9A-Fa-fx]\{5,\};........;g' \
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-e 's;0x[0-9A-Fa-f]\{1,\};0x?;g'
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# this test creates two DLLs and an EXE
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113_btdll.test: T1 = \
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$(TCC) -bt $1 -shared -D DLL=1 -o a1$(DLLSUF) && \
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$(TCC) -bt $1 -shared -D DLL=2 -o a2$(DLLSUF) && \
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$(TCC) -bt $1 a1$(DLLSUF) a2$(DLLSUF) -Wl,-rpath=. -o a.exe && \
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./a.exe
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114_bound_signal.test: FLAGS += -b
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114_bound_signal.test: NORUN = true # tcc -run does not support fork and -b and SELINUX
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115_bound_setjmp.test: FLAGS += -b
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116_bound_setjmp2.test: FLAGS += -b
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117_builtins.test: T1 = ( $(TCC) -run $1 && $(TCC) -b -run $1 )
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# Filter source directory in warnings/errors (out-of-tree builds)
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FILTER = 2>&1 | sed -e 's,$(SRC)/,,g'
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all test tests2.all: $(filter-out $(SKIP),$(TESTS))
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@$(MAKE) clean --no-print-directory -s
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%.test: %.c %.expect
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@echo Test: $*...
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@$(call T1,$<) $(T3)
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T1 = $(TCC) $(FLAGS) $(T2) $(ARGS)
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T2 = $(if $(NORUN),$1 -o a.exe && ./a.exe,-run $1)
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T3 = $(FILTER) >$*.output 2>&1 || true \
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&& diff -Nbu $(filter %.expect,$^) $*.output \
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&& rm -f $*.output $(filter $*.expect,$(GEN-ALWAYS))
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# run single test and update .expect file, e.g. "make tests2.37+"
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tests2.%+:
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@$(MAKE) $(call F2,$(call F1,$*)) --no-print-directory
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# just run tcc to see the output, e.g. "make tests2.37-"
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tests2.%-:
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@$(MAKE) $(call F1,$*) T3= --no-print-directory
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# run single test, e.g. "make tests2.37"
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tests2.%:
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@$(MAKE) $(call F1,$*) --no-print-directory
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F1 = $(or $(filter $1_%,$(TESTS)),$1_???.test)
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F2 = $1 UPDATE="$(patsubst %.test,%.expect,$1)"
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# automatically generate .expect files with gcc:
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%.expect :
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@echo Generating: $@
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@$(call GEN,$(SRC)/$*.c) $(FILTER) >$@ 2>&1
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@rm -f *.exe *.obj *.pdb
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# using TCC for .expect if -dt in FLAGS
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GEN = $(if $(filter -dt -bt -b,$(FLAGS)),$(GEN-TCC),$(GEN-CC))
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GEN-CC = $(CC) -w -std=gnu99 $(FLAGS) $1 -o a.exe && ./a.exe $(ARGS)
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GEN-TCC = $(T1)
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GEN-MSC = $(MS-CC) $1 && ./$(basename $@).exe
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MS-CC = cl
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# tell make not to delete
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.PRECIOUS: %.expect
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# force .expect generation for these files
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$(sort $(GEN-ALWAYS) $(UPDATE)) : force
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force:
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clean :
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rm -f fred.txt *.output a.exe *.dll *.so *.def $(GEN-ALWAYS)
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