From: Warner Losh <imp@bsdimp.com>
To: qemu-devel@nongnu.org
Cc: Peter Maydell <peter.maydell@linaro.org>,
arrowd@FreeBSD.org, Kyle Evans <kevans@freebsd.org>,
Richard Henderson <richard.henderson@linaro.org>,
def@FreeBSD.org, jrtc27@FreeBSD.org, Warner Losh <imp@bsdimp.com>,
Brad Smith <brad@comstyle.com>
Subject: [PATCH 02/22] bsd-user/x86_64/target_arch_cpu.h: int $80 never was a BSD system call on amd64
Date: Tue, 1 Feb 2022 04:14:35 -0700 [thread overview]
Message-ID: <20220201111455.52511-3-imp@bsdimp.com> (raw)
In-Reply-To: <20220201111455.52511-1-imp@bsdimp.com>
Although initial versions of NetBSD did use int $80, it was replaced by
syscall before any releases. OpenBSD and FreeBSD always did syscall.
Signed-off-by: Warner Losh <imp@bsdimp.com>
---
bsd-user/x86_64/target_arch_cpu.h | 58 -------------------------------
1 file changed, 58 deletions(-)
diff --git a/bsd-user/x86_64/target_arch_cpu.h b/bsd-user/x86_64/target_arch_cpu.h
index 0a9c0f08946..9dc52d5afc4 100644
--- a/bsd-user/x86_64/target_arch_cpu.h
+++ b/bsd-user/x86_64/target_arch_cpu.h
@@ -124,64 +124,6 @@ static inline void target_cpu_loop(CPUX86State *env)
process_queued_cpu_work(cs);
switch (trapnr) {
- case 0x80:
- /* syscall from int $0x80 */
- if (bsd_type == target_freebsd) {
- abi_ulong params = (abi_ulong) env->regs[R_ESP] +
- sizeof(int32_t);
- int32_t syscall_nr = env->regs[R_EAX];
- int32_t arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8;
-
- if (syscall_nr == TARGET_FREEBSD_NR_syscall) {
- get_user_s32(syscall_nr, params);
- params += sizeof(int32_t);
- } else if (syscall_nr == TARGET_FREEBSD_NR___syscall) {
- get_user_s32(syscall_nr, params);
- params += sizeof(int64_t);
- }
- get_user_s32(arg1, params);
- params += sizeof(int32_t);
- get_user_s32(arg2, params);
- params += sizeof(int32_t);
- get_user_s32(arg3, params);
- params += sizeof(int32_t);
- get_user_s32(arg4, params);
- params += sizeof(int32_t);
- get_user_s32(arg5, params);
- params += sizeof(int32_t);
- get_user_s32(arg6, params);
- params += sizeof(int32_t);
- get_user_s32(arg7, params);
- params += sizeof(int32_t);
- get_user_s32(arg8, params);
- env->regs[R_EAX] = do_freebsd_syscall(env,
- syscall_nr,
- arg1,
- arg2,
- arg3,
- arg4,
- arg5,
- arg6,
- arg7,
- arg8);
- } else { /* if (bsd_type == target_openbsd) */
- env->regs[R_EAX] = do_openbsd_syscall(env,
- env->regs[R_EAX],
- env->regs[R_EBX],
- env->regs[R_ECX],
- env->regs[R_EDX],
- env->regs[R_ESI],
- env->regs[R_EDI],
- env->regs[R_EBP]);
- }
- if (((abi_ulong)env->regs[R_EAX]) >= (abi_ulong)(-515)) {
- env->regs[R_EAX] = -env->regs[R_EAX];
- env->eflags |= CC_C;
- } else {
- env->eflags &= ~CC_C;
- }
- break;
-
case EXCP_SYSCALL:
/* syscall from syscall instruction */
if (bsd_type == target_freebsd) {
--
2.33.1
next prev parent reply other threads:[~2022-02-01 11:34 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-01 11:14 [PATCH 00/22] bsd-user: Start upstreaming the system calls Warner Losh
2022-02-01 11:14 ` [PATCH 01/22] bsd-user/main.c: Drop syscall flavor arg -bsd Warner Losh
2022-02-01 15:54 ` Richard Henderson
2022-02-01 11:14 ` Warner Losh [this message]
2022-02-01 15:57 ` [PATCH 02/22] bsd-user/x86_64/target_arch_cpu.h: int $80 never was a BSD system call on amd64 Richard Henderson
2022-02-01 16:19 ` Kyle Evans
2022-02-01 11:14 ` [PATCH 03/22] bsd-user/x86_64/target_arch_cpu.h: Remove openbsd syscall Warner Losh
2022-02-01 16:22 ` Kyle Evans
2022-02-01 23:13 ` Warner Losh
2022-02-01 17:27 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 04/22] bsd-user/i386/target_arch_cpu.h: " Warner Losh
2022-02-01 16:24 ` Kyle Evans
2022-02-01 17:29 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 05/22] bsd-user/arm/target_arch_cpu.h: Only support FreeBSD sys calls Warner Losh
2022-02-01 16:32 ` Kyle Evans
2022-02-01 23:19 ` Warner Losh
2022-02-01 17:31 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 06/22] bsd-user/arm/target_arch_thread.h: Assume a FreeBSD target Warner Losh
2022-02-01 16:33 ` Kyle Evans
2022-02-01 17:34 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 07/22] bsd-user/x86_64/target_arch_thread.h: " Warner Losh
2022-02-01 16:36 ` Kyle Evans
2022-02-01 17:34 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 08/22] bsd-user: Remove bsd_type Warner Losh
2022-02-01 16:34 ` Kyle Evans
2022-02-01 17:35 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 09/22] bsd-user/freebsd/os-syscall.c: Move syscall processing here Warner Losh
2022-02-01 16:18 ` Kyle Evans
2022-02-01 17:37 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 10/22] bsd-user: Move system call building to os-syscall.c Warner Losh
2022-02-01 17:38 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 11/22] bsd-user/sycall.c: Now obsolete, remove Warner Losh
2022-02-01 16:35 ` Kyle Evans
2022-02-01 17:38 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 12/22] bsd-user/freebsd/os-syscall.c: Add get_errno and host_to_target_errno Warner Losh
2022-02-01 16:35 ` Kyle Evans
2022-02-01 17:39 ` Richard Henderson
2022-02-01 23:27 ` Warner Losh
2022-02-01 11:14 ` [PATCH 13/22] bsd-user/bsd-file.h: Implementation details for the filesystem calls Warner Losh
2022-02-01 16:47 ` Kyle Evans
2022-02-01 17:43 ` Richard Henderson
2022-02-01 23:55 ` Warner Losh
2022-02-26 16:24 ` Warner Losh
2022-02-01 11:14 ` [PATCH 14/22] bsd-user/freebsd/os-syscall.c: lock_iovec Warner Losh
2022-02-01 16:46 ` Kyle Evans
2022-02-01 21:16 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 15/22] bsd-user/freebsd/os-syscall.c: unlock_iovec Warner Losh
2022-02-01 16:37 ` Kyle Evans
2022-02-01 21:29 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 16/22] bsd-user/freebsd/os-syscall.c: Tracing and error boilerplate Warner Losh
2022-02-01 21:31 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 17/22] bsd-user: introduce target.h Warner Losh
2022-02-01 16:39 ` Kyle Evans
2022-02-01 21:32 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 18/22] bsd-user: Define target_arg64 Warner Losh
2022-02-01 16:41 ` Kyle Evans
2022-02-01 21:33 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 19/22] bsd-user: Add safe system call macros Warner Losh
2022-02-01 21:33 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 20/22] bsd-user/bsd-file.h: Add implementations for read, pread, readv and preadv Warner Losh
2022-02-01 21:37 ` Richard Henderson
2022-02-02 3:02 ` Warner Losh
2022-02-01 11:14 ` [PATCH 21/22] bsd-user/bsd-file.h: Meat of the write system calls Warner Losh
2022-02-01 21:38 ` Richard Henderson
2022-02-01 11:14 ` [PATCH 22/22] bsd-user/freebsd/os-syscall.c: Implement exit Warner Losh
2022-02-01 16:48 ` Kyle Evans
2022-02-01 21:39 ` Richard Henderson
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