rust/tests/run-make/compressed-debuginfo/Makefile

# ignore-cross-compile
include ../tools.mk

# only-linux
# min-llvm-version: 16.0
#
# This tests debuginfo-compression.

all: zlib zstandard

zlib:
	test "`$(RUSTC) --crate-name=foo --crate-type=lib --emit=obj -C debuginfo=full -Z debuginfo-compression=zlib foo.rs 2>&1 | sed 's/.*unknown.*zlib.*/missing/' | head -n 1`" = missing || readelf -t $(TMPDIR)/foo.o | grep -q ZLIB

zstandard:
	test "`$(RUSTC) --crate-name=foo --crate-type=lib --emit=obj -C debuginfo=full -Z debuginfo-compression=zstd foo.rs 2>&1 | sed 's/.*unknown.*zstd.*/missing/' | head -n 1`" = missing || readelf -t $(TMPDIR)/foo.o | grep -q ZST
debuginfo: add compiler option to allow compressed debuginfo sections LLVM already supports emitting compressed debuginfo. In debuginfo=full builds, the debug section is often a large amount of data, and it typically compresses very well (3x is not unreasonable.) We add a new knob to allow debuginfo to be compressed when the matching LLVM functionality is present. Like clang, if a known-but-disabled compression mechanism is requested, we disable compression and emit uncompressed debuginfo sections. The API is different enough on older LLVMs we just pretend the support is missing on LLVM older than 16. 2023-07-12 16:07:34 -05:00			`# ignore-cross-compile`
			`include ../tools.mk`

			`# only-linux`
			`# min-llvm-version: 16.0`
			`#`
			`# This tests debuginfo-compression.`

			`all: zlib zstandard`

			`zlib:`
tests: use warning output from rustc to catch missing compression Using `ld.lld` may have been clever, but that was getting the /system/ ld.lld, not one we may have built as part of building llvm. By using the warning message coming directly from rustc we now correctly skip the zlib and zstd tests when the support is missing. 2023-09-08 10:30:24 -05:00			test "`$(RUSTC) --crate-name=foo --crate-type=lib --emit=obj -C debuginfo=full -Z debuginfo-compression=zlib foo.rs 2>&1 \| sed 's/.unknown.zlib.*/missing/' \| head -n 1`" = missing \|\| readelf -t $(TMPDIR)/foo.o \| grep -q ZLIB
debuginfo: add compiler option to allow compressed debuginfo sections LLVM already supports emitting compressed debuginfo. In debuginfo=full builds, the debug section is often a large amount of data, and it typically compresses very well (3x is not unreasonable.) We add a new knob to allow debuginfo to be compressed when the matching LLVM functionality is present. Like clang, if a known-but-disabled compression mechanism is requested, we disable compression and emit uncompressed debuginfo sections. The API is different enough on older LLVMs we just pretend the support is missing on LLVM older than 16. 2023-07-12 16:07:34 -05:00
			`zstandard:`
tests: use warning output from rustc to catch missing compression Using `ld.lld` may have been clever, but that was getting the /system/ ld.lld, not one we may have built as part of building llvm. By using the warning message coming directly from rustc we now correctly skip the zlib and zstd tests when the support is missing. 2023-09-08 10:30:24 -05:00			test "`$(RUSTC) --crate-name=foo --crate-type=lib --emit=obj -C debuginfo=full -Z debuginfo-compression=zstd foo.rs 2>&1 \| sed 's/.unknown.zstd.*/missing/' \| head -n 1`" = missing \|\| readelf -t $(TMPDIR)/foo.o \| grep -q ZST