[PATCH v2 2/2] kbuild: trace functions in subdirectories of lib/
From: Masahiro Yamada <masahiroy@kernel.org>
Date: 2020-07-07 09:23:43
Also in:
linux-crypto, linux-kbuild, linux-kselftest, lkml
Subsystem:
crypto library, dynamic interrupt moderation, framebuffer console, ibm power 842 compression accelerator, kernel unit testing framework (kunit), library code, software raid (multiple disks) support, the rest, xz embedded, zstd · Maintainers:
Eric Biggers, Jason A. Donenfeld, Ard Biesheuvel, Tal Gilboa, Helge Deller, Thomas Zimmermann, Haren Myneni, Brendan Higgins, David Gow, Andrew Morton, Song Liu, Yu Kuai, Linus Torvalds, Lasse Collin, Nick Terrell, David Sterba
ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
exists here in sub-directories of lib/ to keep the behavior of
commit 2464a609ded0 ("ftrace: do not trace library functions").
Since that commit, not only the objects in lib/ but also the ones in
the sub-directories are excluded from ftrace (although the commit
description did not explicitly mention this).
However, most of library functions in sub-directories are not so hot.
Re-add them to ftrace.
Going forward, only the objects right under lib/ will be excluded.
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---
Changes in v2:
- New patch
lib/842/Makefile | 3 ---
lib/crypto/Makefile | 2 --
lib/dim/Makefile | 2 --
lib/fonts/Makefile | 2 --
lib/kunit/Makefile | 3 ---
lib/livepatch/Makefile | 2 --
lib/lz4/Makefile | 1 -
lib/lzo/Makefile | 2 --
lib/math/Makefile | 2 --
lib/mpi/Makefile | 2 --
lib/raid6/Makefile | 3 ---
lib/reed_solomon/Makefile | 2 --
lib/xz/Makefile | 3 ---
lib/zlib_deflate/Makefile | 2 --
lib/zlib_dfltcc/Makefile | 2 --
lib/zlib_inflate/Makefile | 2 --
lib/zstd/Makefile | 1 -
17 files changed, 36 deletions(-)
diff --git a/lib/842/Makefile b/lib/842/Makefile
index b815e824ae37..6f7aad269288 100644
--- a/lib/842/Makefile
+++ b/lib/842/Makefile@@ -1,6 +1,3 @@ # SPDX-License-Identifier: GPL-2.0-only - -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_842_COMPRESS) += 842_compress.o obj-$(CONFIG_842_DECOMPRESS) += 842_decompress.o
diff --git a/lib/crypto/Makefile b/lib/crypto/Makefile
index b557ef0b07c2..3a435629d9ce 100644
--- a/lib/crypto/Makefile
+++ b/lib/crypto/Makefile@@ -1,7 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - # chacha is used by the /dev/random driver which is always builtin obj-y += chacha.o obj-$(CONFIG_CRYPTO_LIB_CHACHA_GENERIC) += libchacha.o
diff --git a/lib/dim/Makefile b/lib/dim/Makefile
index 97fc3e89d34e..1d6858a108cb 100644
--- a/lib/dim/Makefile
+++ b/lib/dim/Makefile@@ -2,8 +2,6 @@ # DIM Dynamic Interrupt Moderation library # -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_DIMLIB) += dim.o dim-y := dim.o net_dim.o rdma_dim.o
diff --git a/lib/fonts/Makefile b/lib/fonts/Makefile
index f951750c179e..ed95070860de 100644
--- a/lib/fonts/Makefile
+++ b/lib/fonts/Makefile@@ -1,8 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 # Font handling -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - font-objs := fonts.o font-objs-$(CONFIG_FONT_SUN8x16) += font_sun8x16.o
diff --git a/lib/kunit/Makefile b/lib/kunit/Makefile
index 8c847557ab24..724b94311ca3 100644
--- a/lib/kunit/Makefile
+++ b/lib/kunit/Makefile@@ -1,6 +1,3 @@ - -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_KUNIT) += kunit.o kunit-objs += test.o \
diff --git a/lib/livepatch/Makefile b/lib/livepatch/Makefile
index 9abdf615b088..295b94bff370 100644
--- a/lib/livepatch/Makefile
+++ b/lib/livepatch/Makefile@@ -2,8 +2,6 @@ # # Makefile for livepatch test code. -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_TEST_LIVEPATCH) += test_klp_atomic_replace.o \ test_klp_callbacks_demo.o \ test_klp_callbacks_demo2.o \
diff --git a/lib/lz4/Makefile b/lib/lz4/Makefile
index 53da4cab7015..5b42242afaa2 100644
--- a/lib/lz4/Makefile
+++ b/lib/lz4/Makefile@@ -1,6 +1,5 @@ # SPDX-License-Identifier: GPL-2.0-only ccflags-y += -O3 -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) obj-$(CONFIG_LZ4_COMPRESS) += lz4_compress.o obj-$(CONFIG_LZ4HC_COMPRESS) += lz4hc_compress.o
diff --git a/lib/lzo/Makefile b/lib/lzo/Makefile
index 9565a555275b..2f58fafbbddd 100644
--- a/lib/lzo/Makefile
+++ b/lib/lzo/Makefile@@ -1,6 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - lzo_compress-objs := lzo1x_compress.o lzo_decompress-objs := lzo1x_decompress_safe.o
diff --git a/lib/math/Makefile b/lib/math/Makefile
index 49aa50e28185..be6909e943bd 100644
--- a/lib/math/Makefile
+++ b/lib/math/Makefile@@ -1,6 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-y += div64.o gcd.o lcm.o int_pow.o int_sqrt.o reciprocal_div.o obj-$(CONFIG_CORDIC) += cordic.o
diff --git a/lib/mpi/Makefile b/lib/mpi/Makefile
index df7883521619..d5874a7f5ff9 100644
--- a/lib/mpi/Makefile
+++ b/lib/mpi/Makefile@@ -3,8 +3,6 @@ # MPI multiprecision maths library (from gpg) # -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_MPILIB) = mpi.o mpi-y = \
diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile
index 3482d6ae3f3b..b4c0df6d706d 100644
--- a/lib/raid6/Makefile
+++ b/lib/raid6/Makefile@@ -1,7 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 - -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_RAID6_PQ) += raid6_pq.o raid6_pq-y += algos.o recov.o tables.o int1.o int2.o int4.o \
diff --git a/lib/reed_solomon/Makefile b/lib/reed_solomon/Makefile
index a5c9defdac7f..5d4fa68f26cb 100644
--- a/lib/reed_solomon/Makefile
+++ b/lib/reed_solomon/Makefile@@ -3,7 +3,5 @@ # This is a modified version of reed solomon lib, # -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_REED_SOLOMON) += reed_solomon.o obj-$(CONFIG_REED_SOLOMON_TEST) += test_rslib.o
diff --git a/lib/xz/Makefile b/lib/xz/Makefile
index fae9b6c7c389..fa6af814a8d1 100644
--- a/lib/xz/Makefile
+++ b/lib/xz/Makefile@@ -1,7 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only - -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_XZ_DEC) += xz_dec.o xz_dec-y := xz_dec_syms.o xz_dec_stream.o xz_dec_lzma2.o xz_dec-$(CONFIG_XZ_DEC_BCJ) += xz_dec_bcj.o
diff --git a/lib/zlib_deflate/Makefile b/lib/zlib_deflate/Makefile
index 1fcefe73536f..2622e03c0b94 100644
--- a/lib/zlib_deflate/Makefile
+++ b/lib/zlib_deflate/Makefile@@ -7,8 +7,6 @@ # decompression code. # -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate.o zlib_deflate-objs := deflate.o deftree.o deflate_syms.o
diff --git a/lib/zlib_dfltcc/Makefile b/lib/zlib_dfltcc/Makefile
index 7a8067f6e772..8e4d5afbbb10 100644
--- a/lib/zlib_dfltcc/Makefile
+++ b/lib/zlib_dfltcc/Makefile@@ -6,8 +6,6 @@ # This is the code for s390 zlib hardware support. # -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_ZLIB_DFLTCC) += zlib_dfltcc.o zlib_dfltcc-objs := dfltcc.o dfltcc_deflate.o dfltcc_inflate.o dfltcc_syms.o
diff --git a/lib/zlib_inflate/Makefile b/lib/zlib_inflate/Makefile
index a451e96f9845..27327d3e9f54 100644
--- a/lib/zlib_inflate/Makefile
+++ b/lib/zlib_inflate/Makefile@@ -14,8 +14,6 @@ # uncompression can be done without blocking on allocation). # -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate.o zlib_inflate-objs := inffast.o inflate.o infutil.o \
diff --git a/lib/zstd/Makefile b/lib/zstd/Makefile
index 01be908a2d94..f5d778e7e5c7 100644
--- a/lib/zstd/Makefile
+++ b/lib/zstd/Makefile@@ -3,7 +3,6 @@ obj-$(CONFIG_ZSTD_COMPRESS) += zstd_compress.o obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd_decompress.o ccflags-y += -O3 -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) zstd_compress-y := fse_compress.o huf_compress.o compress.o \ entropy_common.o fse_decompress.o zstd_common.o
--
2.25.1