Set block-size for XZ mini-debug-info compression.
This allows the compression to be done on multiple threads
and more importantly, it allows libunwindstack to decompress
only the needed blocks, which reduces unwind time and memory.
Bug: 110133331
Test: verify lazy decompression in libunwindstack
Change-Id: Ia3f597928edcbc85acdf05cb5c83ac7fced39148
diff --git a/scripts/strip.sh b/scripts/strip.sh
index 40f0184..5b7a6da 100755
--- a/scripts/strip.sh
+++ b/scripts/strip.sh
@@ -89,7 +89,7 @@
"${CROSS_COMPILE}objcopy" --rename-section .debug_frame=saved_debug_frame "${outfile}.debug" "${outfile}.mini_debuginfo"
"${CROSS_COMPILE}objcopy" -S --remove-section .gdb_index --remove-section .comment --keep-symbols="${outfile}.keep_symbols" "${outfile}.mini_debuginfo"
"${CROSS_COMPILE}objcopy" --rename-section saved_debug_frame=.debug_frame "${outfile}.mini_debuginfo"
- "${XZ}" "${outfile}.mini_debuginfo"
+ "${XZ}" --block-size=64k --threads=0 "${outfile}.mini_debuginfo"
"${CLANG_BIN}/llvm-objcopy" --add-section .gnu_debugdata="${outfile}.mini_debuginfo.xz" "${outfile}.tmp"
rm -f "${outfile}.dynsyms" "${outfile}.funcsyms" "${outfile}.keep_symbols" "${outfile}.debug" "${outfile}.mini_debuginfo" "${outfile}.mini_debuginfo.xz"