Richard Henderson a3310c0397 linux-user: Move syscall error detection into safe_syscall_base ... The current api from safe_syscall_base() is to return -errno, which is the interface provided by *some* linux kernel abis. The wrapper macro, safe_syscall(), detects error, stores into errno, and returns -1, to match the api of the system syscall(). For those kernel abis that do not return -errno natively, this leads to double syscall error detection. E.g. Linux ppc64, which sets the SO flag for error. Simplify the usage from C by moving the error detection into assembly, and usage from assembly by providing a C helper with which to set errno. Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>		2021-12-19 20:47:33 -08:00
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host-signal.h	linux-user: Add host_signal_set_pc to set pc in mcontext	2021-11-23 01:47:01 +01:00
hostdep.h	linux-user/signal.c: Create a common rewind_if_in_safe_syscall	2021-11-23 01:47:20 +01:00
safe-syscall.inc.S	linux-user: Move syscall error detection into safe_syscall_base	2021-12-19 20:47:33 -08:00