[PATCH,RFC,V3 0/8] Definition and Implementation of CTF Frame format
Indu Bhagat
indu.bhagat@oracle.com
Tue Jun 14 07:06:44 GMT 2022
Hello,
This is version 3 of the previously sent RFC series.
Initial (V1) posting contains necessary introductions:
https://sourceware.org/pipermail/binutils/2022-May/120731.html
V2 posting with some improvements:
https://sourceware.org/pipermail/binutils/2022-May/120899.html
The commit log of each patch in the current patch series specifies the changes
from the version V2 of the respective patch. Briefly, following are the main
changes in the current version V3 as compared to V2:
1. Testsuites for gas, ld, libctfframe.
2. Some code cleanup, improvements and bugfixes.
This is a work in progress. In the subsequent iterations of the series, I plan
to focus on the bloat caused by the CTF Frame unwind information for the plt*
entries on x86_64 and enhance the testsuite for CTF Frame.
Important note: libctfframe/configure has NOT been included in the patch
series, as it causes the size of some patches to go beyond the allowed limit.
Please regenerate the libctfframe/configure after applying the series.
Please comment and provide feedback, it will help shape the format. At this
time, I really need some inputs on:
1. What is a good place for an unwinder based on CTF Frame format ? Currently
to facilitate discussion, it is presented in a library of its own:
libctfbacktrace which, in turn, uses the libctfframe library for decoding the
.ctf_frame section for unwinding. We brainstormed a bit about the possible
candidates being libbacktace, libgcc or libunwind ? Are there any
recommendations ?
Thanks,
Indu Bhagat (6):
ctf-frame.h: Add CTF Frame format definition
gas: add new command line option --gctf-frame
gas: generate .ctf_frame
bfd: linker: merge .ctf_frame sections
readelf/objdump: support for CTF Frame section
gdb: sim: buildsystem changes to accommodate libctfframe
Weimin Pan (2):
libctfframe: add the CTF Frame library
unwinder: generate backtrace using CTF Frame format
Makefile.def | 5 +
Makefile.in | 1289 +++++++++++++-
bfd/Makefile.am | 6 +-
bfd/Makefile.in | 7 +-
bfd/bfd-in2.h | 1 +
bfd/configure | 2 +-
bfd/configure.ac | 2 +-
bfd/elf-bfd.h | 55 +
bfd/elf-ctf-frame.c | 510 ++++++
bfd/elf.c | 32 +
bfd/elf64-x86-64.c | 97 +-
bfd/elflink.c | 52 +
bfd/elfxx-x86.c | 362 +++-
bfd/elfxx-x86.h | 46 +
bfd/section.c | 1 +
binutils/Makefile.am | 10 +-
binutils/Makefile.in | 10 +-
binutils/doc/binutils.texi | 4 +
binutils/doc/ctfframe.options.texi | 10 +
binutils/objdump.c | 76 +
binutils/readelf.c | 47 +
config/ctf-frame.m4 | 16 +
configure | 2 +-
configure.ac | 2 +-
gas/Makefile.am | 3 +
gas/Makefile.in | 23 +-
gas/as.c | 10 +-
gas/as.h | 13 +-
gas/config/tc-aarch64.c | 42 +
gas/config/tc-aarch64.h | 29 +
gas/config/tc-i386.c | 46 +
gas/config/tc-i386.h | 26 +
gas/config/tc-xtensa.c | 1 +
gas/ctf-frame-opt.c | 158 ++
gas/doc/as.texi | 19 +-
gas/dw2gencfi.c | 30 +
gas/dw2gencfi.h | 1 +
gas/gen-ctf-frame.c | 1241 +++++++++++++
gas/gen-ctf-frame.h | 142 ++
gas/testsuite/gas/cfi-ctf/cfi-ctf-aarch64-1.d | 20 +
gas/testsuite/gas/cfi-ctf/cfi-ctf-aarch64-1.s | 61 +
gas/testsuite/gas/cfi-ctf/cfi-ctf-common-1.d | 17 +
gas/testsuite/gas/cfi-ctf/cfi-ctf-common-1.s | 3 +
gas/testsuite/gas/cfi-ctf/cfi-ctf-common-2.d | 17 +
gas/testsuite/gas/cfi-ctf/cfi-ctf-common-2.s | 2 +
gas/testsuite/gas/cfi-ctf/cfi-ctf-common-3.d | 17 +
gas/testsuite/gas/cfi-ctf/cfi-ctf-common-3.s | 4 +
gas/testsuite/gas/cfi-ctf/cfi-ctf-x86_64-1.d | 22 +
gas/testsuite/gas/cfi-ctf/cfi-ctf-x86_64-1.s | 30 +
gas/testsuite/gas/cfi-ctf/cfi-ctf.exp | 48 +
gas/write.c | 13 +
gdb/Makefile.in | 8 +-
gdb/acinclude.m4 | 4 +-
gdb/configure | 35 +-
gdb/configure.ac | 11 +
include/ctf-backtrace-api.h | 57 +
include/ctf-frame-api.h | 213 +++
include/ctf-frame.h | 256 +++
include/elf/common.h | 1 +
include/elf/internal.h | 1 +
ld/Makefile.am | 2 +
ld/Makefile.in | 2 +
ld/configure | 8 +-
ld/configure.ac | 3 +
ld/ld.texi | 4 +-
ld/scripttempl/elf.sc | 2 +
ld/testsuite/ld-aarch64/aarch64-elf.exp | 2 +
ld/testsuite/ld-aarch64/ctf-frame-bar.s | 7 +
ld/testsuite/ld-aarch64/ctf-frame-foo.s | 10 +
ld/testsuite/ld-aarch64/ctf-frame-simple-1.d | 26 +
ld/testsuite/ld-bootstrap/bootstrap.exp | 8 +-
ld/testsuite/ld-ctf-frame/ctf-frame-empty.d | 10 +
ld/testsuite/ld-ctf-frame/ctf-frame-empty.s | 2 +
ld/testsuite/ld-ctf-frame/ctf-frame.exp | 47 +
ld/testsuite/ld-ctf-frame/discard.d | 10 +
ld/testsuite/ld-ctf-frame/discard.ld | 9 +
ld/testsuite/ld-ctf-frame/discard.s | 13 +
ld/testsuite/ld-x86-64/ctf-frame-bar.s | 31 +
ld/testsuite/ld-x86-64/ctf-frame-foo.s | 37 +
ld/testsuite/ld-x86-64/ctf-frame-simple-1.d | 38 +
ld/testsuite/ld-x86-64/x86-64.exp | 1 +
ld/testsuite/lib/ld-lib.exp | 45 +
libctfframe/Makefile.am | 84 +
libctfframe/Makefile.in | 1050 +++++++++++
libctfframe/aclocal.m4 | 1242 +++++++++++++
libctfframe/config.h.in | 144 ++
libctfframe/configure.ac | 82 +
libctfframe/ctf-backtrace-err.c | 46 +
libctfframe/ctf-backtrace.c | 617 +++++++
libctfframe/ctf-frame-dump.c | 173 ++
libctfframe/ctf-frame-error.c | 49 +
libctfframe/ctf-frame-impl.h | 55 +
libctfframe/ctf-frame.c | 1545 +++++++++++++++++
libctfframe/testsuite/config/default.exp | 60 +
libctfframe/testsuite/lib/ctfframe-lib.exp | 204 +++
.../testsuite/libctfframe.decode/DATA1 | Bin 0 -> 59 bytes
.../testsuite/libctfframe.decode/DATA2 | Bin 0 -> 91 bytes
.../testsuite/libctfframe.decode/decode.exp | 38 +
.../testsuite/libctfframe.decode/frecnt_1.c | 108 ++
.../testsuite/libctfframe.decode/frecnt_1.lk | 3 +
.../testsuite/libctfframe.decode/frecnt_2.c | 113 ++
.../testsuite/libctfframe.decode/frecnt_2.lk | 3 +
libctfframe/ttest.c | 78 +
sim/common/Make-common.in | 7 +-
104 files changed, 11228 insertions(+), 58 deletions(-)
create mode 100644 bfd/elf-ctf-frame.c
create mode 100644 binutils/doc/ctfframe.options.texi
create mode 100644 config/ctf-frame.m4
create mode 100644 gas/ctf-frame-opt.c
create mode 100644 gas/gen-ctf-frame.c
create mode 100644 gas/gen-ctf-frame.h
create mode 100644 gas/testsuite/gas/cfi-ctf/cfi-ctf-aarch64-1.d
create mode 100644 gas/testsuite/gas/cfi-ctf/cfi-ctf-aarch64-1.s
create mode 100644 gas/testsuite/gas/cfi-ctf/cfi-ctf-common-1.d
create mode 100644 gas/testsuite/gas/cfi-ctf/cfi-ctf-common-1.s
create mode 100644 gas/testsuite/gas/cfi-ctf/cfi-ctf-common-2.d
create mode 100644 gas/testsuite/gas/cfi-ctf/cfi-ctf-common-2.s
create mode 100644 gas/testsuite/gas/cfi-ctf/cfi-ctf-common-3.d
create mode 100644 gas/testsuite/gas/cfi-ctf/cfi-ctf-common-3.s
create mode 100644 gas/testsuite/gas/cfi-ctf/cfi-ctf-x86_64-1.d
create mode 100644 gas/testsuite/gas/cfi-ctf/cfi-ctf-x86_64-1.s
create mode 100644 gas/testsuite/gas/cfi-ctf/cfi-ctf.exp
create mode 100644 include/ctf-backtrace-api.h
create mode 100644 include/ctf-frame-api.h
create mode 100644 include/ctf-frame.h
create mode 100644 ld/testsuite/ld-aarch64/ctf-frame-bar.s
create mode 100644 ld/testsuite/ld-aarch64/ctf-frame-foo.s
create mode 100644 ld/testsuite/ld-aarch64/ctf-frame-simple-1.d
create mode 100644 ld/testsuite/ld-ctf-frame/ctf-frame-empty.d
create mode 100644 ld/testsuite/ld-ctf-frame/ctf-frame-empty.s
create mode 100644 ld/testsuite/ld-ctf-frame/ctf-frame.exp
create mode 100644 ld/testsuite/ld-ctf-frame/discard.d
create mode 100644 ld/testsuite/ld-ctf-frame/discard.ld
create mode 100644 ld/testsuite/ld-ctf-frame/discard.s
create mode 100644 ld/testsuite/ld-x86-64/ctf-frame-bar.s
create mode 100644 ld/testsuite/ld-x86-64/ctf-frame-foo.s
create mode 100644 ld/testsuite/ld-x86-64/ctf-frame-simple-1.d
create mode 100644 libctfframe/Makefile.am
create mode 100644 libctfframe/Makefile.in
create mode 100644 libctfframe/aclocal.m4
create mode 100644 libctfframe/config.h.in
create mode 100644 libctfframe/configure.ac
create mode 100644 libctfframe/ctf-backtrace-err.c
create mode 100644 libctfframe/ctf-backtrace.c
create mode 100644 libctfframe/ctf-frame-dump.c
create mode 100644 libctfframe/ctf-frame-error.c
create mode 100644 libctfframe/ctf-frame-impl.h
create mode 100644 libctfframe/ctf-frame.c
create mode 100644 libctfframe/testsuite/config/default.exp
create mode 100644 libctfframe/testsuite/lib/ctfframe-lib.exp
create mode 100644 libctfframe/testsuite/libctfframe.decode/DATA1
create mode 100644 libctfframe/testsuite/libctfframe.decode/DATA2
create mode 100644 libctfframe/testsuite/libctfframe.decode/decode.exp
create mode 100644 libctfframe/testsuite/libctfframe.decode/frecnt_1.c
create mode 100644 libctfframe/testsuite/libctfframe.decode/frecnt_1.lk
create mode 100644 libctfframe/testsuite/libctfframe.decode/frecnt_2.c
create mode 100644 libctfframe/testsuite/libctfframe.decode/frecnt_2.lk
create mode 100644 libctfframe/ttest.c
--
2.31.1
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