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 v2 02/16] bsd-user/x86_64/target_arch_cpu.h: int $80 never was a BSD system call on amd64
Date: Sat, 26 Feb 2022 10:07:30 -0700 [thread overview]
Message-ID: <20220226170744.76615-3-imp@bsdimp.com> (raw)
In-Reply-To: <20220226170744.76615-1-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>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
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:[~2022-02-26 17:12 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-26 17:07 [PATCH v2 00/16] bsd-user: Start upstreaming the system calls Warner Losh
2022-02-26 17:07 ` [PATCH v2 01/16] bsd-user/main.c: Drop syscall flavor arg -bsd Warner Losh
2022-02-26 17:07 ` Warner Losh [this message]
2022-02-26 17:07 ` [PATCH v2 03/16] bsd-user/x86_64/target_arch_cpu.h: Remove openbsd syscall Warner Losh
2022-02-26 17:07 ` [PATCH v2 04/16] bsd-user/i386/target_arch_cpu.h: " Warner Losh
2022-02-26 17:07 ` [PATCH v2 05/16] bsd-user/arm/target_arch_cpu.h: Only support FreeBSD sys calls Warner Losh
2022-02-26 17:07 ` [PATCH v2 06/16] bsd-user/arm/target_arch_thread.h: Assume a FreeBSD target Warner Losh
2022-02-26 17:07 ` [PATCH v2 07/16] bsd-user/x86_64/target_arch_thread.h: " Warner Losh
2022-02-26 17:07 ` [PATCH v2 08/16] bsd-user: Remove bsd_type Warner Losh
2022-02-26 17:07 ` [PATCH v2 09/16] bsd-user/freebsd/os-syscall.c: Move syscall processing here Warner Losh
2022-02-26 17:07 ` [PATCH v2 10/16] bsd-user: Move system call building to os-syscall.c Warner Losh
2022-02-26 17:07 ` [PATCH v2 11/16] bsd-user/sycall.c: Now obsolete, remove Warner Losh
2022-02-26 17:07 ` [PATCH v2 12/16] bsd-user/freebsd/os-syscall.c: Add get_errno and host_to_target_errno Warner Losh
2022-02-26 17:07 ` [PATCH v2 13/16] bsd-user/bsd-file.h: Implementation details for the filesystem calls Warner Losh
2022-02-27 3:20 ` Richard Henderson
2022-02-26 17:07 ` [PATCH v2 14/16] bsd-user: introduce target.h Warner Losh
2022-02-26 17:07 ` [PATCH v2 15/16] bsd-user: Define target_arg64 Warner Losh
2022-02-26 17:07 ` [PATCH v2 16/16] bsd-user: Add safe system call macros Warner Losh
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