riscv/qemu - qemu - Gitea: Git with a cup of tea

Commit Graph

Author	SHA1	Message	Date
Icenowy Zheng	22b448ccc6	common-user/host/riscv: use tail pseudoinstruction for calling tail 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	12 months ago
Alex Bennée	903e870f24	plugins/api: split out binary path/start/end/entry code To move the main api.c to a single build compilation object we need to start splitting out user and system specific code. As we need to grob around host headers we move these particular helpers into the *-user mode directories. The binary/start/end/entry helpers are all NOPs for system mode. While using the plugin-api.c.inc trick means we build for both linux-user and bsd-user the BSD user-mode command line is still missing -plugin. This can be enabled once we have reliable check-tcg tests working for the BSDs. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20250304222439.2035603-27-alex.bennee@linaro.org>	1 year ago
Richard Henderson	ffe98631b3	common-user/host/ppc: Implement safe-syscall.inc.S Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20220729172141.1789105-2-richard.henderson@linaro.org>	4 years ago
Thomas Huth	2296b46556	common-user: Only compile the common user code if have_user is set There is no need to waste cycles here if we only compile the system binaries or tools. Additionally, this change is even a hard requirement for building the tools on systems that do not have an entry in the common-user/host/ folder (since common-user/meson.build is trying to add such a path via the include_directories() command). Reported-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Zhang Chen <chen.zhang@intel.com> Message-Id: <20220622140328.383961-1-thuth@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>	4 years ago
Richard Henderson	620d0b49a4	common-user/host/sparc64: Fix safe_syscall_base Use the "retl" instead of "ret" instruction alias, since we do not allocate a register window in this function. Fix the offset to the first stacked parameter, which lies beyond the register window save area. Fixes: `95c021dac8` ("linux-user/host/sparc64: Add safe-syscall.inc.S") Signed-off-by: Richard Henderson <richard.henderson@linaro.org>	4 years ago
Paolo Bonzini	9d24fb73a1	meson: cleanup common-user/ build It is not necessary to have a separate static_library just for common_user files; using the one that already covers the rest of common_ss is enough unless you need to reuse some source files between emulators and tests. Just place common files for all user-mode emulators in common_ss, similar to what is already done for softmmu_ss in full system emulators. The only disadvantage is that the include_directories under bsd-user/include/ and linux-user/include/ are now enabled for all targets rather than only user mode emulators. This however is not different from how include/sysemu/ is available when building user mode emulators. Tested-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	4 years ago
Richard Henderson	fb084237a3	common-user: Really fix i386 calls to safe_syscall_set_errno_tail Brown bag time: offset 0 from esp is the return address, offset 4 is the first argument. Fixes: `d7478d4229` ("common-user: Fix tail calls to safe_syscall_set_errno_tail") Signed-off-by: Richard Henderson <richard.henderson@linaro.org>	4 years ago
Richard Henderson	d7478d4229	common-user: Fix tail calls to safe_syscall_set_errno_tail For the ABIs in which the syscall return register is not also the first function argument register, move the errno value into the correct place. Fixes: `a3310c0397` ("linux-user: Move syscall error detection into safe_syscall_base") Reported-by: Laurent Vivier <laurent@vivier.eu> Tested-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220104190454.542225-1-richard.henderson@linaro.org>	4 years ago
WANG Xuerui	6016b7b46e	common-user: Add safe syscall handling for loongarch64 hosts Signed-off-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211221054105.178795-29-git@xen0n.name> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>	4 years ago
Richard Henderson	5bfd125ec8	common-user: Adjust system call return on FreeBSD FreeBSD system calls return positive errno. On the 4 hosts for which we have support, error is indicated by the C bit set or clear. Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>	4 years ago
Richard Henderson	bbf15aaf7c	common-user: Move safe-syscall.* from linux-user 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>	4 years ago

11 Commits (c4f88b7136aa5aa5670a16c2f173ffb45da401b2)