Latest strace 4.11 for ARC does not compile: /home/wbx/buildroot/output/host/usr/bin/arc-buildroot-linux-uclibc-gcc -DHAVE_CONFIG_H -I./linux/arc -I./linux/arc -I./linux -I./linux -I. -I. -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Wall -Wwrite-strings -Wsign-compare -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -matomic -Os -c -o strace-term.o `test -f 'term.c' || echo './'`term.c In file included from syscall.c:34:0: syscall.c:85:63: error: ‘sys_ARCH_mmap’ undeclared here (not in a function) #define SEN(syscall_name) SEN_ ## syscall_name, SYS_FUNC_NAME(sys_ ## syscall_name) ^ defs.h:799:51: note: in definition of macro ‘MPERS_FUNC_NAME__’ #define MPERS_FUNC_NAME__(prefix, name) prefix ## name ^ defs.h:801:31: note: in expansion of macro ‘MPERS_FUNC_NAME_’ #define MPERS_FUNC_NAME(name) MPERS_FUNC_NAME_(MPERS_PREFIX, name) ^ defs.h:803:37: note: in expansion of macro ‘MPERS_FUNC_NAME’ #define SYS_FUNC_NAME(syscall_name) MPERS_FUNC_NAME(syscall_name) ^ syscall.c:85:49: note: in expansion of macro ‘SYS_FUNC_NAME’ #define SEN(syscall_name) SEN_ ## syscall_name, SYS_FUNC_NAME(sys_ ## syscall_name) ^ ./linux/32/syscallent.h:230:24: note: in expansion of macro ‘SEN’ [222] = { 6, TD|TM|SI, SEN(ARCH_mmap), "mmap2" }, ^ /home/wbx/buildroot/output/host/usr/bin/arc-buildroot-linux-uclibc-gcc -DHAVE_CONFIG_H -I./linux/arc -I./linux/arc -I./linux -I./linux -I. -I. -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Wall -Wwrite-strings -Wsign-compare -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -matomic -Os -c -o strace-time.o `test -f 'time.c' || echo './'`time.c In file included from syscall.c:1351:0: ./linux/arc/get_syscall_args.c: In function ‘get_syscall_args’: ./linux/arc/get_syscall_args.c:5:19: warning: pointer targets in initialization differ in signedness [-Wpointer-sign] long *arc_args = &arc_regs.scratch.r0; ^ make[3]: *** [strace-syscall.o] Error 1 make[3]: *** Waiting for unfinished jobs.... make[3]: Leaving directory `/home/wbx/buildroot/output/build/strace-4.11'
Thanks for the report. This has also been found by our autobuilders: http://autobuild.buildroot.org/?reason=strace-4.11. I just mailed Alexey Brodkin, who maintains the ARC support in Buildroot, to point him to this bug.
Fixed by http://patchwork.ozlabs.org/patch/561060/
Just a bit of a context. Problem introduced by http://sourceforge.net/p/strace/code/ci/34683e3926d8c2daa368afb805da422ee7043396/ Problem fixed by http://sourceforge.net/p/strace/code/ci/dd1a80c8d213eed95fe55b7ebcb07ee165dd8e4b/