John Baldwin caa449b635 Use PT_GET_SC_ARGS and PT_GET_SC_RET in truss. ... This removes all of the architecture-specific functions from truss. A per-ABI structure is still needed to map syscall numbers to names and FreeBSD errno values to ABI error values as well as hold syscall counters. However, the linker set of ABI structures is now replaced with a simple table mapping ABI names to structures. This approach permits sharing the same ABI structure among separate names such as i386 a.out and ELF binaries as well as ELF v1 vs ELF v2 for powerpc64. A few differences are visible due to using PT_GET_SC_RET to fetch the error value of a system call. Note that ktrace/kdump have had the "new" behaviors for a long time already: - System calls that return with EJUSTRETURN or ERESTART will now be noticed and logged as such. Previously sigreturn (which uses EJUSTRETURN) would report whatever random value was in the register holding errno from the previous system call for example. Now it reports EJUSTRETURN. - System calls that return errno as their error value such as posix_fallocate() and posix_fadvise() now report non-zero return values as errors instead of success with a non-zero return value. Reviewed by: kib MFC after: 1 month Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D20963		2019-07-16 22:59:15 +00:00
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extern.h
main.c	Validate the string size parameter passed to -s.	2018-12-10 21:47:19 +00:00
Makefile	Use PT_GET_SC_ARGS and PT_GET_SC_RET in truss.	2019-07-16 22:59:15 +00:00
Makefile.depend
setup.c	Use PT_GET_SC_ARGS and PT_GET_SC_RET in truss.	2019-07-16 22:59:15 +00:00
syscall.h	Use PT_GET_SC_ARGS and PT_GET_SC_RET in truss.	2019-07-16 22:59:15 +00:00
syscalls.c	Use PT_GET_SC_ARGS and PT_GET_SC_RET in truss.	2019-07-16 22:59:15 +00:00
truss.1
truss.h	Use PT_GET_SC_ARGS and PT_GET_SC_RET in truss.	2019-07-16 22:59:15 +00:00