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* linux-user/aarch64: Introduce sve_vqRichard Henderson2022-06-082-8/+14
| | | | | | | | | | | | Add an interface function to extract the digested vector length rather than the raw zcr_el[1] value. This fixes an incorrect return from do_prctl_set_vl where we didn't take into account the set of vector lengths supported by the cpu. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220607203306.657998-3-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* Merge tag 'm68k-for-7.1-pull-request' of https://github.com/vivier/qemu-m68k ↵Richard Henderson2022-06-023-4/+16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into staging m68k pull request 20220602 - Fixes and cleanup - Implement TRAP opcodes - Enable halt on 68060 # -----BEGIN PGP SIGNATURE----- # # iQJGBAABCAAwFiEEzS913cjjpNwuT1Fz8ww4vT8vvjwFAmKYpeQSHGxhdXJlbnRA # dml2aWVyLmV1AAoJEPMMOL0/L748U+AP/i6EYidZmelIEqOwZTwwzxreF5bTZmAP # v0Hxt3Tef3PWJpLnoCXCsd4othCO3PgHcwtrLff+bkWRl0Wt5CYcq+tTu2im7fIN # zM7RSO00Pt/va7Ss7Ej8d5P5l7uuFqcBFytnitbsNrvHNK4cQ9PVmOkPnJZe0lYt # vA3pUk7giE1KV+/s78Z4VD5CbvwpTRQpDCPDvba7oIP2E9mOELajKtYGh7gvPthx # hrG2L5Ou4rYWxJkpZ0mNyYvoPuGRmzgPImdaDMTPLjEYNJMnnqGCRm+ANtzNk+jy # d/fE/xJ41xvPAt4Q29yCp0vITuRF468M/elp5hQr/rHc6xtitLCi57FhduY9PuL/ # zCMXytgFtnU1C9XhDI/FtQhQxpvEKkZmEJRrAnsuHQKLrHlGoofjBU3whHqfx1zG # qw/cdYqx/RUKKxvmoTbk76doaqfVQvBIx2nB6CsHF3pqOpQETK5TYeId49GCkwgR # 4DmBPL1RZZpkYxi1KEKprcJWMj1l29UTa2dJ+kt9T2YACRm7MYQurP8OCGoHFIX4 # MOr3vdxaqSRU+mE2lWLZWupkZyzFrG/khHSB7A9htTomgbfZLfc0YkHX5kOkHQNq # k4ymLpf16F94aau568HVQO8UZV+1FedtRwJL2EWVqkzKri9rSCCeI8I27HVLjwLP # YzrHwsMVsjgl # =T1g0 # -----END PGP SIGNATURE----- # gpg: Signature made Thu 02 Jun 2022 04:58:28 AM PDT # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [undefined] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [undefined] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [undefined] # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * tag 'm68k-for-7.1-pull-request' of https://github.com/vivier/qemu-m68k: target/m68k: Mark helper_raise_exception as noreturn linux-user/strace: Adjust get_thread_area for m68k linux-user/strace: Use is_error in print_syscall_err tests/tcg/m68k: Add trap.c target/m68k: Implement FTRAPcc target/m68k: Implement TRAPV target/m68k: Implement TPF in terms of TRAPcc target/m68k: Implement TRAPcc target/m68k: Fix stack frame for EXCP_ILLEGAL target/m68k: Fix address argument for EXCP_TRACE target/m68k: Fix pc, c flag, and address argument for EXCP_DIV0 target/m68k: Fix address argument for EXCP_CHK target/m68k: Remove retaddr in m68k_interrupt_all linux-user/m68k: Handle EXCP_TRAP1 through EXCP_TRAP15 target/m68k: Fix coding style in m68k_interrupt_all target/m68k: Switch over exception type in m68k_interrupt_all target/m68k: Raise the TRAPn exception with the correct pc target/m68k: Enable halt insn for 68060 target/m68k: Clear mach in m68k_cpu_disas_set_info Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * linux-user/strace: Adjust get_thread_area for m68kRichard Henderson2022-06-021-0/+5
| | | | | | | | | | | | | | | | | | Unlike i386, m68k get_thread_area has no arguments. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220602013401.303699-17-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| * linux-user/strace: Use is_error in print_syscall_errRichard Henderson2022-06-021-1/+1
| | | | | | | | | | | | | | | | | | Errors are not all negative numbers: use is_error. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220602013401.303699-16-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| * target/m68k: Implement TRAPccRichard Henderson2022-06-021-0/+1
| | | | | | | | | | | | | | | | Resolves: https://gitlab.com/qemu-project/qemu/-/issues/754 Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220602013401.303699-11-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| * target/m68k: Fix address argument for EXCP_TRACERichard Henderson2022-06-021-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the M68040 Users Manual, section 8.4.3, Six word stack frame (format 2), Trace (and others) is supposed to record the next insn in PC and the address of the trapping instruction in ADDRESS. Create gen_raise_exception_format2 to record the trapping pc in env->mmu.ar. Update m68k_interrupt_all to pass the value to do_stack_frame. Update cpu_loop to handle EXCP_TRACE. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220602013401.303699-9-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| * target/m68k: Fix pc, c flag, and address argument for EXCP_DIV0Richard Henderson2022-06-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the M68040 Users Manual, section 8.4.3, Six word stack frame (format 2), Zero Div (and others) is supposed to record the next insn in PC and the address of the trapping instruction in ADDRESS. While the N, Z and V flags are documented to be undefine on DIV0, the C flag is documented as always cleared. Update helper_div* to take the instruction length as an argument and use raise_exception_format2. Hoist the reset of the C flag above the division by zero check. Update m68k_interrupt_all to pass mmu.ar to do_stack_frame. Update cpu_loop to pass mmu.ar to siginfo.si_addr, as the kernel does in trap_c(). Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220602013401.303699-8-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| * target/m68k: Fix address argument for EXCP_CHKRichard Henderson2022-06-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the M68040 Users Manual, section 8.4.3, Six word stack frame (format 2), CHK, CHK2 (and others) are supposed to record the next insn in PC and the address of the trapping instruction in ADDRESS. Create a raise_exception_format2 function to centralize recording of the trapping pc in mmu.ar, plus advancing to the next insn. Update m68k_interrupt_all to pass mmu.ar to do_stack_frame. Update cpu_loop to pass mmu.ar to siginfo.si_addr, as the kernel does in trap_c(). Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220602013401.303699-7-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| * linux-user/m68k: Handle EXCP_TRAP1 through EXCP_TRAP15Richard Henderson2022-06-021-0/+4
| | | | | | | | | | | | | | | | | | These are raised by guest instructions, and should not fall through into the default abort case. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220602013401.303699-5-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| * target/m68k: Raise the TRAPn exception with the correct pcRichard Henderson2022-06-021-1/+0Star
| | | | | | | | | | | | | | | | | | | | Rather than adjust the PC in all of the consumers, raise the exception with the correct PC in the first place. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220602013401.303699-2-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* | linux-user: Add PowerPC ISA 3.1 and MMA to hwcapJoel Stanley2022-05-261-0/+4
|/ | | | | | | | | | These are new hwcap bits added for power10. Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220524140537.27451-9-lucas.araujo@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
* linux-user/host/s390: Treat EX and EXRL as writesIlya Leoshkevich2022-05-231-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* linux-user/s390x: Fix unwinding from signal handlersIlya Leoshkevich2022-05-231-0/+5
| | | | | | | | | | | | | | | | Commit 31330e6cecfd ("linux-user/s390x: Implement setup_sigtramp") removed an unused field from rt_sigframe, disturbing offsets of other fields and breaking unwinding from signal handlers (e.g. libgcc's s390_fallback_frame() relies on this struct having a specific layout). Restore the field and add a comment. Reported-by: Ulrich Weigand <ulrich.weigand@de.ibm.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Fixes: 31330e6cecfd ("linux-user/s390x: Implement setup_sigtramp") Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220503225157.1696774-2-iii@linux.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Remove pointless CPU{ARCH}State castsPhilippe Mathieu-Daudé2022-05-233-28/+25Star
| | | | | | | Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220509205728.51912-4-philippe.mathieu.daude@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Have do_syscall() use CPUArchState* instead of void*Philippe Mathieu-Daudé2022-05-236-129/+129
| | | | | | | Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220509205728.51912-3-philippe.mathieu.daude@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/elfload: Remove pointless non-const CPUArchState castPhilippe Mathieu-Daudé2022-05-231-1/+1
| | | | | | | | | fill_thread_info() takes a pointer to const. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220509205728.51912-2-philippe.mathieu.daude@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/syscall.c: fix build without RLIMIT_RTTIMEFabrice Fontaine2022-05-231-0/+2
| | | | | | | | | | | | | | | | | | | | | | RLIMIT_RTTIME is not provided by uclibc-ng or by musl prior to version 1.2.0 and https://github.com/bminor/musl/commit/2507e7f5312e79620f6337935d0a6c9045ccba09 resulting in the following build failure since https://git.qemu.org/?p=qemu.git;a=commit;h=244fd08323088db73590ff2317dfe86f810b51d7: ../linux-user/syscall.c: In function 'target_to_host_resource': ../linux-user/syscall.c:1057:16: error: 'RLIMIT_RTTIME' undeclared (first use in this function); did you mean 'RLIMIT_NOFILE'? 1057 | return RLIMIT_RTTIME; | ^~~~~~~~~~~~~ | RLIMIT_NOFILE Fixes: - http://autobuild.buildroot.org/results/22d3b584b704613d030e1ea9e6b709b713e4cc26 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20220523105239.1499162-1-fontaine.fabrice@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Clean up arg_start/arg_end confusionRichard Henderson2022-05-234-12/+26
| | | | | | | | | | | | | | | | | | | | We had two sets of variables: arg_start/arg_end, and arg_strings/env_strings. In linuxload.c, we set the first pair to the bounds of the argv strings, but in elfload.c, we set the first pair to the bounds of the argv pointers and the second pair to the bounds of the argv strings. Remove arg_start/arg_end, replacing them with the standard argc/argv/envc/envp values. Retain arg_strings/env_strings with the meaning we were using in elfload.c. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/714 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> Message-Id: <20220427025129.160184-1-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* Clean up decorations and whitespace around header guardsMarkus Armbruster2022-05-111-1/+1
| | | | | | | | Cleaned up with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220506134911.2856099-5-armbru@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user/nios2: Handle various SIGILL exceptionsRichard Henderson2022-04-261-0/+12
| | | | | | | | | We missed out on a couple of exception types that may legitimately be raised by a userland program. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-59-richard.henderson@linaro.org>
* target/nios2: Advance pc when raising exceptionsRichard Henderson2022-04-261-6/+2Star
| | | | | | | | | | | | | | | The exception return address for nios2 is the instruction after the one that was executing at the time of the exception. We have so far implemented this by advancing the pc during the process of raising the exception. It is perhaps a little less confusing to do this advance in the translator (and helpers) when raising the exception in the first place, so that we may more closely match kernel sources. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20220421151735.31996-58-richard.henderson@linaro.org>
* target/nios2: Implement Misaligned destination exceptionRichard Henderson2022-04-261-0/+6
| | | | | | | | | | | | | | | | | Indirect branches, plus eret and bret optionally raise an exception when branching to a misaligned address. The exception is required when an mmu is enabled, but enable it always because the fallback behaviour is not documented (though presumably it discards low bits). For the purposes of the linux-user cpu loop, if EXCP_UNALIGN (misaligned data) were to arrive, it would be treated the same as EXCP_UNALIGND (misaligned destination). See the !defined(CONFIG_NIOS2_ALIGNMENT_TRAP) block in kernel/traps.c. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-53-richard.henderson@linaro.org>
* target/nios2: Support division error exceptionRichard Henderson2022-04-261-0/+4
| | | | | | | | | | Division may (optionally) raise a division exception. Since the linux kernel has been prepared for this for some time, enable it by default. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-42-richard.henderson@linaro.org>
* linux-user/nios2: Only initialize SP and PC in target_cpu_copy_regsRichard Henderson2022-04-262-23/+0Star
| | | | | | | | | | | | | | Drop the set of estatus in init_thread; it was clearly intended to be setting the value of CR_STATUS for the application, but we never actually performed that copy. However, the proper value is set in nios2_cpu_reset so we don't need to do anything here. We only initialize SP and EA in init_thread, there's no value in copying other uninitialized data into ENV. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-21-richard.henderson@linaro.org>
* target/nios2: Split PC out of env->regs[]Richard Henderson2022-04-263-14/+13Star
| | | | | | | | It is cleaner to have a separate name for this variable. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-17-richard.henderson@linaro.org>
* linux-user/nios2: Use force_sig_fault for EXCP_DEBUGRichard Henderson2022-04-261-5/+1Star
| | | | | | | | | Use the simpler signal interface, which forces us to supply the missing PC value to si_addr. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20220421151735.31996-13-richard.henderson@linaro.org>
* target/nios2: Remove nios2_cpu_record_sigsegvRichard Henderson2022-04-261-10/+0Star
| | | | | | | | | Since f5ef0e518d0, we have a real page mapped for kuser, which means the special casing for SIGSEGV can go away. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20220421151735.31996-11-richard.henderson@linaro.org>
* linux-user/nios2: Use QEMU_ESIGRETURN from do_rt_sigreturnRichard Henderson2022-04-261-8/+4Star
| | | | | | | | | Drop the kernel-specific "pr2" code structure and use the qemu-specific error return value. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-8-richard.henderson@linaro.org>
* linux-user/nios2: Remove do_sigreturnRichard Henderson2022-04-261-7/+0Star
| | | | | | | | | There is no sigreturn syscall, only rt_sigreturn. This function is unused. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-7-richard.henderson@linaro.org>
* linux-user/nios2: Handle special qemu syscall return valuesRichard Henderson2022-04-261-0/+8
| | | | | | | | Honor QEMU_ESIGRETURN and QEMU_ERESTARTSYS. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-6-richard.henderson@linaro.org>
* linux-user/nios2: Adjust error returnRichard Henderson2022-04-261-2/+7
| | | | | | | | | Follow the kernel assembly, which considers all negative return values to be errors. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-5-richard.henderson@linaro.org>
* linux-user/nios2: Drop syscall 0 "workaround"Richard Henderson2022-04-261-4/+0Star
| | | | | | | | | | Syscall 0 is __NR_io_setup for this target; there is nothing to work around. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Fixes: a0a839b65b6 ("nios2: Add usermode binaries emulation") Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-4-richard.henderson@linaro.org>
* linux-user/nios2: Fix clone child returnRichard Henderson2022-04-261-0/+1
| | | | | | | | | The child side of clone needs to set the secondary syscall return value, r7, to indicate syscall success. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-3-richard.henderson@linaro.org>
* linux-user/nios2: Hoist pc advance to the top of EXCP_TRAPRichard Henderson2022-04-261-2/+8
| | | | | | | | | | | | | | Note that this advance *should* be done by the translator, as that's the pc value that's supposed to be generated by hardware. However, that's a much larger change across sysemu as well. In the meantime, produce the correct PC for any signals raised by the trap instruction. Note the special case of TRAP_BRKPT, which itself is special cased within the kernel. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220421151735.31996-2-richard.henderson@linaro.org>
* target/arm: Change CPUArchState.thumb to boolRichard Henderson2022-04-221-1/+1
| | | | | | | | | Bool is a more appropriate type for this value. Adjust the assignments to use true/false. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* compiler.h: replace QEMU_NORETURN with G_NORETURNMarc-André Lureau2022-04-212-2/+3
| | | | | | | | | | | | | G_NORETURN was introduced in glib 2.68, fallback to G_GNUC_NORETURN in glib-compat. Note that this attribute must be placed before the function declaration (bringing a bit of consistency in qemu codebase usage). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20220420132624.2439741-20-marcandre.lureau@redhat.com>
* include: rename qemu-common.h qemu/help-texts.hMarc-André Lureau2022-04-211-1/+1
| | | | | | | Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20220420132624.2439741-7-marcandre.lureau@redhat.com>
* Merge tag 'pull-tcg-20220420' of https://gitlab.com/rth7680/qemu into stagingRichard Henderson2022-04-211-1/+0Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cleanup sysemu/tcg.h usage. Fix indirect lowering vs cond branches Remove ATOMIC_MMU_IDX Add tcg_constant_ptr # -----BEGIN PGP SIGNATURE----- # # iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmJgW38dHHJpY2hhcmQu # aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV8tpggApfg2CDI0bRMDBh0g # 04/xwNnzHuSa84/ocMOMUfD5pvBblUmeTH8fAwqcAPDM/EEZwWZl2V1bYzuIrbmR # 8zV+r1cOenDF5Tz8PWfy8XssinTVtTWh/TE0XNV9R/SbEM9eMsjHNu5osKVuLuq1 # rnHWZf8LuY7xGsy4GYqPN0dLE6HtQOfpj/eLGRAj9mZ7re0jKeWg3GdxYoiYDmks # NKmNHYcWD+SjjFvXlOafniQsHbBZmQc/qp7AShG/+VcYY9o1VfncWD6I2dV13RdB # N7++ZhGyQR4NOVo6CN1zLKhfuJqzH2q+qJ7vQ3xtXNAk53LGQ91zjoE+3KaJTrcy # dmnLUw== # =aKdS # -----END PGP SIGNATURE----- # gpg: Signature made Wed 20 Apr 2022 12:14:07 PM PDT # gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F # gpg: issuer "richard.henderson@linaro.org" # gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate] * tag 'pull-tcg-20220420' of https://gitlab.com/rth7680/qemu: tcg: Add tcg_constant_ptr accel/tcg: Remove ATOMIC_MMU_IDX tcg: Fix indirect lowering vs TCG_OPF_COND_BRANCH Don't include sysemu/tcg.h if it is not necessary Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * Don't include sysemu/tcg.h if it is not necessaryThomas Huth2022-04-201-1/+0Star
| | | | | | | | | | | | | | | | | | | | | | This header only defines the tcg_allowed variable and the tcg_enabled() function - which are not required in many files that include this header. Drop the #include statement there. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220315144107.1012530-1-thuth@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* | linux-user: Use qemu_set_log_filename_flagsRichard Henderson2022-04-201-6/+5Star
| | | | | | | | | | | | | | | | Perform all logfile setup in one step. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220417183019.755276-30-richard.henderson@linaro.org>
* | linux-user: Expand log_page_dump inlineRichard Henderson2022-04-202-16/+36
| | | | | | | | | | | | | | | | | | We have extra stuff to log at the same time. Hoist the qemu_log_lock/unlock to the caller and use fprintf. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220417183019.755276-23-richard.henderson@linaro.org>
* | util/log: Pass Error pointer to qemu_set_logRichard Henderson2022-04-201-1/+1
| | | | | | | | | | | | | | | | | | Do not force exit within qemu_set_log; return bool and pass an Error value back up the stack as per usual. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220417183019.755276-5-richard.henderson@linaro.org>
* | util/log: Drop manual log bufferingRichard Henderson2022-04-201-1/+0Star
|/ | | | | | | | | | | | | | This buffering was introduced during the Paleozoic: 9fa3e853531. There has never been an explanation as to why we may not allow glibc to allocate the file buffer itself. We certainly have many other uses of mmap and malloc during user-only startup, so presumably whatever the issue was, it has been fixed during the preceeding 18 years. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220417183019.755276-2-richard.henderson@linaro.org>
* Remove qemu-common.h include from most unitsMarc-André Lureau2022-04-0616-16/+0Star
| | | | | | Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Replace qemu_real_host_page variables with inlined functionsMarc-André Lureau2022-04-062-3/+3
| | | | | | | | | | | | Replace the global variables with inlined helper functions. getpagesize() is very likely annotated with a "const" function attribute (at least with glibc), and thus optimization should apply even better. This avoids the need for a constructor initialization too. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-12-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Replace TARGET_WORDS_BIGENDIANMarc-André Lureau2022-04-0614-20/+20
| | | | | | | | | | | | Convert the TARGET_WORDS_BIGENDIAN macro, similarly to what was done with HOST_BIG_ENDIAN. The new TARGET_BIG_ENDIAN macro is either 0 or 1, and thus should always be defined to prevent misuse. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Suggested-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220323155743.1585078-8-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Replace config-time define HOST_WORDS_BIGENDIANMarc-André Lureau2022-04-064-9/+8Star
| | | | | | | | | | | | | | | | | | | Replace a config-time define with a compile time condition define (compatible with clang and gcc) that must be declared prior to its usage. This avoids having a global configure time define, but also prevents from bad usage, if the config header wasn't included before. This can help to make some code independent from qemu too. gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> [ For the s390x parts I'm involved in ] Acked-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220323155743.1585078-7-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* linux-user/ppc: Narrow type of ccr in save_user_regsRichard Henderson2022-04-041-1/+1
| | | | | | | | | | | | | | Coverity warns that we shift a 32-bit value by N, and then accumulate it into a 64-bit type (target_ulong on ppc64). The ccr is always 8 * 4-bit fields, and thus is always a 32-bit quantity; narrow the type to avoid the warning. Fixes: Coverity CID 1487223 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20220401191643.330393-1-richard.henderson@linaro.org> Signed-off-by: Cédric Le Goater <clg@kaod.org>
* linux-user/sh4/termbits: Silence warning about TIOCSER_TEMT double definitionThomas Huth2022-03-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Seen while compiling on Alpine: In file included from ../linux-user/strace.c:17: In file included from ../linux-user/qemu.h:11: In file included from ../linux-user/syscall_defs.h:1247: ../linux-user/sh4/termbits.h:276:10: warning: 'TIOCSER_TEMT' macro redefined [-Wmacro-redefined] # define TIOCSER_TEMT 0x01 /* Transmitter physically empty */ ^ /usr/include/sys/ioctl.h:50:9: note: previous definition is here #define TIOCSER_TEMT 1 ^ 1 warning generated. Add the TARGET_ prefix here, too, like we do it on the other architectures. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp> Message-Id: <20220330134302.979686-1-thuth@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/arm: Implement __kernel_cmpxchg64 with host atomicsRichard Henderson2022-03-231-39/+36Star
| | | | | | | | | | | If CONFIG_ATOMIC64, we can use a host cmpxchg and provide atomicity across processes; otherwise we have no choice but to continue using start/end_exclusive. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220323005839.94327-4-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
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