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db0d8dd806
The "no modify self" variant of Actually Portable Executable is now
supported on all platforms. If you use `$(APE_NO_MODIFY_SELF)` then
ld.bfd will embed a 4096 byte ELF binary and a 4096 byte Macho file
which are installed on the fly to ${TMPDIR:-/tmp}, which enables us
launch the executable, without needing to copy the whole executable
To prevent it from copying a tiny executable to your temp directory
you need to install the `ape` command (renamed from ape-loader), to
a system path. For example:
# FreeBSD / NetBSD / OpenBSD
make -j8 o//ape/ape
cp o//ape/ape /usr/bin/ape
# Mac OS
# make -j8 o//ape/ape.macho
curl https://justine.lol/ape.macho >/usr/bin/ape
chmod +x /usr/bin/ape
On Linux you can get even more performance with the new binfmt_misc
support which makes launching non-modifying APE binaries as fast as
launching ELF executables. Running the following command:
# Linux
ape/apeinstall.sh
Will copy APE loader to /usr/bin/ape and register with binfmt_misc
Lastly, this change also fixes a really interesting race condition
with OpenBSD thread joining.
35 lines
1.4 KiB
C
35 lines
1.4 KiB
C
#ifndef COSMOPOLITAN_LIBC_TESTLIB_UGLY_H_
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#define COSMOPOLITAN_LIBC_TESTLIB_UGLY_H_
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#include "libc/macros.internal.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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#define __TEST_ARRAY(S) \
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_Section(".piro.relo.sort.testcase.2." #S ",\"aw\",@init_array #")
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#define __BENCH_ARRAY(S) \
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_Section(".piro.relo.sort.bench.2." #S ",\"aw\",@init_array #")
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#define __TEST_PROTOTYPE(S, N, A, K) \
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void S##_##N(void); \
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testfn_t S##_##N##_ptr[] A(S##_##N) = {S##_##N}; \
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testonly K void S##_##N(void)
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#define __TEST_SECTION(NAME, CONTENT) \
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".section " NAME "\n" CONTENT "\n\t.previous\n"
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#define __RELOSECTION(NAME, CONTENT) \
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__TEST_SECTION(".piro.relo.sort" NAME ",\"aw\",@progbits", CONTENT)
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#define __ROSTR(STR) __TEST_SECTION(".rodata.str1.1,\"aSM\",@progbits,1", STR)
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#define __FIXTURE(KIND, GROUP, ENTRY) \
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asm(__RELOSECTION("." KIND ".2." #GROUP #ENTRY, \
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"\t.quad\t1f\n" \
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"\t.quad\t2f\n" \
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"\t.quad\t" STRINGIFY(GROUP##_##ENTRY)) \
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__ROSTR("1:\t.asciz\t" STRINGIFY(#GROUP)) \
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__ROSTR("2:\t.asciz\t" STRINGIFY(#ENTRY))); \
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testonly void GROUP##_##ENTRY(void)
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_TESTLIB_UGLY_H_ */
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