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

Author	SHA1	Message	Date
Ilya Leoshkevich	ab9ccfa850	linux-user/host/s390: Add vector instructions to host_signal_write() The new noexec test fails on s390x with "unexpected SEGV". This test overwrites code using libc's memcpy(), which uses VSTL instruction. host_signal_write() does not recognize it, which causes SEGV to be incorrectly forwarded to the test. Add all vector instructions that write to memory to host_signal_write(). Fixes: `ab12c95d3f` ("target/s390x: Make translator stop before the end of a page") Reported-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20220920113907.334144-1-iii@linux.ibm.com> Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>	4 years ago
Ilya Leoshkevich	565a84c1e6	linux-user/host/s390: Treat EX and EXRL as writes clang-built s390x branch-relative-long test fails on clang-built s390x QEMU due to the following sequence of events: - The test zeroes out a code page, clang generates exrl+xc for this. - do_helper_xc() is called. Clang generates exrl+xc there as well. - Since there already exists a TB for the code in question, its page is read-only and SIGSEGV is raised. - host_signal_handler() calls host_signal_write() and the latter does not recognize exrl as a write. Therefore page_unprotect() is not called and the signal is forwarded to the test. Fix by treating EXRL (and EX, just in case) as writes. There may be false positives, but they will lead only to an extra page_unprotect() call. Reported-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Tested-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220504114819.1729737-1-iii@linux.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>	4 years ago
Khem Raj	9d1401b794	ppc64: Avoid pt_regs struct definition Remove pt_regs indirection and instead reference gp_regs directly, this makes it portable across musl/glibc Use PT_* constants defined in asm/ptrace.h Move the file to ppc64 subdir and leave ppc empty Fixes ../qemu-6.2.0/linux-user/host/ppc64/../ppc/host-signal.h:16:32: error: incomplete definition of type 'struct pt_regs' return uc->uc_mcontext.regs->nip; ~~~~~~~~~~~~~~~~~~~~^ Signed-off-by: Khem Raj <raj.khem@gmail.com> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Philippe Mathieu-Daudé <f4bug@amsat.org> Cc: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220315015740.847370-1-raj.khem@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>	4 years ago
Richard Henderson	4f152ef27e	linux-user/include/host/sparc64: Fix host_sigcontext Sparc64 is unique on linux in not passing ucontext_t as the third argument to a SA_SIGINFO handler. It passes the old struct sigcontext instead. Set both pc and npc in host_signal_set_pc. Fixes: `8b5bd46193` ("linux-user/host/sparc: Populate host_signal.h") Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>	5 years ago
Richard Henderson	238b32de39	linux-user: Move sparc/host-signal.h to sparc64/host-signal.h We do not support sparc32 as a host, so there's no point in sparc64 redirecting to sparc. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>	5 years ago
Richard Henderson	9940799bde	linux-user: Introduce host_sigcontext Do not directly access ucontext_t as the third signal parameter. This is preparation for a sparc64 fix. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>	5 years ago
Richard Henderson	c8c89a6a30	linux-user: Introduce host_signal_mask Do not directly access the uc_sigmask member. This is preparation for a sparc64 fix. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>	5 years ago
Paolo Bonzini	05a248715c	user: move common-user includes to a subdirectory of {bsd,linux}-user/ Avoid polluting the compilation of common-user/ with local include files; making an include file available to common-user/ should be a deliberate decision in order to keep a clear interface that can be used by both bsd-user/ and linux-user/. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	5 years ago