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Author SHA1 Message Date
Dmitry V. Levin
a8fce09e34 mpers: add support of conditionally compiled printers 
We used to declare and define all printers marked with
MPERS_PRINTER_DECL, including ifdef'ed ones.  That approach left us
no way to conditionally compile mpersified printers, which was not
a problem until btrfs ioctls appeared on the horizon.

With this change, those mpersified printers that are not going
to be compiled are also won't be declared and won't be added to
struct_printers.

This is implemented by filtering all source files containing
MPERS_PRINTER_DECL markers through CPP.  As a nice side effect, this
also lifts an ugly requirement of writing all MPERS_PRINTER_DECL
declarations in a single line.

* README-mpers: Update description of MPERS_PRINTER_DECL syntax.
* defs.h [IN_MPERS_BOOTSTRAP] (MPERS_PRINTER_DECL): Turn into
a recursive variadic macro.
[!IN_MPERS_BOOTSTRAP] (MPERS_PRINTER_DECL): Turn into a variadic macro.
All callers changed.
* Makefile.am (mpers_preproc_files, mpers_printer_decl_pattern):
New variables.
(CLEANFILES): Add $(mpers_preproc_files).
(%.c.mpers.i): New rule.
(printers.h, %_printer_decls.h, %_printer_defs.h): Use
mpers_preproc_files instead of srcdir_mpers_source_files,
use mpers_printer_decl_pattern.
* .gitignore: Add /*.mpers.i.
 2016-05-21 22:53:06 +00:00
Dmitry V. Levin
67c2f67410 Fix decoding of statfs family syscalls 
Fix decoders of fstatfs, fstatfs64, statfs, and statfs64 syscalls
by rewriting them using mpers infrastructure.

* fetch_struct_statfs.c: New file.
* fstatfs.c: Likewise.
* fstatfs64.c: Likewise.
* print_statfs.c: Likewise.
* statfs.h: Likewise.
* statfs64.c: Likewise.
* statfs.c: Remove everything except SYS_FUNC(statfs).
* configure.ac: Remove the check for struct statfs64 in <sys/vfs.h>.
Add checks for struct statfs and struct statfs64 in <asm/statfs.h>.
Add checks for f_frsize and f_flags members of these structures.
* defs.h (struct strace_statfs): New forward declaration.
(print_struct_statfs, print_struct_statfs64): New prototypes.
* Makefile.am (libstrace_a_SOURCES): Add fstatfs.c, fstatfs64.c,
statfs.c, and statfs64.c.
(strace_SOURCES): Add fetch_struct_statfs.c, print_statfs.c,
and statfs.h.
* NEWS: Mention this fix.
* tests/fstatfs.c: New file.
* tests/fstatfs64.c: Likewise.
* tests/statfs64.c: Likewise.
* tests/xstatfs.c: Likewise.
* tests/xstatfs64.c: Likewise.
* tests/xstatfsx.c: Likewise.
* tests/fstatfs.test: New test.
* tests/fstatfs64.test: Likewise.
* tests/statfs64.test: Likewise.
* tests/statfs.c: Rewrite using xstatfs.c.
* tests/statfs.test: Update.
* tests/.gitignore: Add fstatfs, fstatfs64, and statfs64.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add  fstatfs.test, fstatfs64.test, and statfs64.test.
(EXTRA_DIST): Add xstatfs.c, xstatfs64.c, and xstatfsx.c.
 2016-04-26 01:35:31 +00:00