[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH v2 02/16] bsd-user/x86_64/target_arch_cpu.h: int $80 never was a
From: |
Warner Losh |
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 |
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
- [PATCH v2 00/16] bsd-user: Start upstreaming the system calls., Warner Losh, 2022/02/26
- [PATCH v2 01/16] bsd-user/main.c: Drop syscall flavor arg -bsd, Warner Losh, 2022/02/26
- [PATCH v2 02/16] bsd-user/x86_64/target_arch_cpu.h: int $80 never was a BSD system call on amd64,
Warner Losh <=
- [PATCH v2 03/16] bsd-user/x86_64/target_arch_cpu.h: Remove openbsd syscall, Warner Losh, 2022/02/26
- [PATCH v2 04/16] bsd-user/i386/target_arch_cpu.h: Remove openbsd syscall, Warner Losh, 2022/02/26
- [PATCH v2 05/16] bsd-user/arm/target_arch_cpu.h: Only support FreeBSD sys calls, Warner Losh, 2022/02/26
- [PATCH v2 06/16] bsd-user/arm/target_arch_thread.h: Assume a FreeBSD target, Warner Losh, 2022/02/26
- [PATCH v2 07/16] bsd-user/x86_64/target_arch_thread.h: Assume a FreeBSD target, Warner Losh, 2022/02/26
- [PATCH v2 09/16] bsd-user/freebsd/os-syscall.c: Move syscall processing here, Warner Losh, 2022/02/26
- [PATCH v2 12/16] bsd-user/freebsd/os-syscall.c: Add get_errno and host_to_target_errno, Warner Losh, 2022/02/26
- [PATCH v2 08/16] bsd-user: Remove bsd_type, Warner Losh, 2022/02/26
- [PATCH v2 10/16] bsd-user: Move system call building to os-syscall.c, Warner Losh, 2022/02/26
- [PATCH v2 13/16] bsd-user/bsd-file.h: Implementation details for the filesystem calls, Warner Losh, 2022/02/26