The j pseudoinstruction maps to a JAL instruction, which can only handle
a jump to somewhere with a signed 20-bit destination. In case of static
linking and LTO'ing this easily leads to "relocation truncated to fit"
error.
Switch to use tail pseudoinstruction, which is the standard way to
tail-call a function in medium code model (emits AUIPC+JALR).
Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250417072206.364008-1-uwu@icenowy.me>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Cc: qemu-stable@nongnu.org
Move linux-user safe-syscall.S and safe-syscall-error.c to common-user
so that bsd-user can also use it. Also move safe-syscall.h to
include/user/. Since there is nothing here that is related to the guest,
as opposed to the host, build it once.
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-12-20 10:12:24 -08:00
Renamed from linux-user/host/riscv/safe-syscall.inc.S (Browse further)
