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5b813f1a2a
Prior to this change we would assume the ABI for Apple targets to be GNU which could result in subtle errors in LLVM emitting calls to non-existent system libc provided functions such as `_sincosf` which is a GNU extension and as such is not provided by macOS for example. This would result in linker errors where the linker would not be able to find the said symbol in `libSystem.tbd`. With this change, we now correctly identify macOS (and other Apple platforms) as having ABI `unknown` which translates to unspecified in LLVM under-the-hood: ``` // main.ll target triple = "aarch64-unknown-macos-unknown" ``` Note however that we never suffix the target OS with target version such as `macos11` or `macos12` which means we fail to instruct LLVM of potential optimisations provided by the OS such as the availability of function `___sincosf_stret`. I suggest we investigate that in a follow-up commit.
189 lines
7.0 KiB
C
Vendored
189 lines
7.0 KiB
C
Vendored
/*
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* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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#ifndef _MACH_TASK_POLICY_H_
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#define _MACH_TASK_POLICY_H_
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#include <mach/mach_types.h>
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/*
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* These are the calls for accessing the policy parameters
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* of a particular task.
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*
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* The extra 'get_default' parameter to the second call is
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* IN/OUT as follows:
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* 1) if asserted on the way in it indicates that the default
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* values should be returned, not the ones currently set, in
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* this case 'get_default' will always be asserted on return;
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* 2) if unasserted on the way in, the current settings are
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* desired and if still unasserted on return, then the info
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* returned reflects the current settings, otherwise if
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* 'get_default' returns asserted, it means that there are no
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* current settings due to other parameters taking precedence,
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* and the default ones are being returned instead.
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*/
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typedef natural_t task_policy_flavor_t;
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typedef integer_t *task_policy_t;
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/*
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* kern_return_t task_policy_set(
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* task_t task,
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* task_policy_flavor_t flavor,
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* task_policy_t policy_info,
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* mach_msg_type_number_t count);
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*
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* kern_return_t task_policy_get(
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* task_t task,
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* task_policy_flavor_t flavor,
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* task_policy_t policy_info,
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* mach_msg_type_number_t *count,
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* boolean_t *get_default);
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*/
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/*
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* Defined flavors.
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*/
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/*
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* TASK_CATEGORY_POLICY:
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*
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* This provides information to the kernel about the role
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* of the task in the system.
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*
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* Parameters:
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*
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* role: Enumerated as follows:
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*
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* TASK_UNSPECIFIED is the default, since the role is not
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* inherited from the parent.
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*
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* TASK_FOREGROUND_APPLICATION should be assigned when the
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* task is a normal UI application in the foreground from
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* the HI point of view.
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* **N.B. There may be more than one of these at a given time.
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*
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* TASK_BACKGROUND_APPLICATION should be assigned when the
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* task is a normal UI application in the background from
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* the HI point of view.
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*
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* TASK_CONTROL_APPLICATION should be assigned to the unique
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* UI application which implements the pop-up application dialog.
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* There can only be one task at a time with this designation,
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* which is assigned FCFS.
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*
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* TASK_GRAPHICS_SERVER should be assigned to the graphics
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* management (window) server. There can only be one task at
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* a time with this designation, which is assigned FCFS.
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*/
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#define TASK_CATEGORY_POLICY 1
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#define TASK_SUPPRESSION_POLICY 3
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#define TASK_POLICY_STATE 4
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#define TASK_BASE_QOS_POLICY 8
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#define TASK_OVERRIDE_QOS_POLICY 9
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#define TASK_BASE_LATENCY_QOS_POLICY 10
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#define TASK_BASE_THROUGHPUT_QOS_POLICY 11
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enum task_role {
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TASK_RENICED = -1,
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TASK_UNSPECIFIED = 0,
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TASK_FOREGROUND_APPLICATION = 1,
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TASK_BACKGROUND_APPLICATION = 2,
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TASK_CONTROL_APPLICATION = 3,
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TASK_GRAPHICS_SERVER = 4,
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TASK_THROTTLE_APPLICATION = 5,
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TASK_NONUI_APPLICATION = 6,
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TASK_DEFAULT_APPLICATION = 7,
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TASK_DARWINBG_APPLICATION = 8,
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};
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typedef integer_t task_role_t;
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struct task_category_policy {
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task_role_t role;
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};
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typedef struct task_category_policy task_category_policy_data_t;
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typedef struct task_category_policy *task_category_policy_t;
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#define TASK_CATEGORY_POLICY_COUNT ((mach_msg_type_number_t) \
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(sizeof (task_category_policy_data_t) / sizeof (integer_t)))
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enum task_latency_qos {
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LATENCY_QOS_TIER_UNSPECIFIED = 0x0,
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LATENCY_QOS_TIER_0 = ((0xFF << 16) | 1),
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LATENCY_QOS_TIER_1 = ((0xFF << 16) | 2),
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LATENCY_QOS_TIER_2 = ((0xFF << 16) | 3),
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LATENCY_QOS_TIER_3 = ((0xFF << 16) | 4),
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LATENCY_QOS_TIER_4 = ((0xFF << 16) | 5),
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LATENCY_QOS_TIER_5 = ((0xFF << 16) | 6)
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};
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typedef integer_t task_latency_qos_t;
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enum task_throughput_qos {
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THROUGHPUT_QOS_TIER_UNSPECIFIED = 0x0,
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THROUGHPUT_QOS_TIER_0 = ((0xFE << 16) | 1),
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THROUGHPUT_QOS_TIER_1 = ((0xFE << 16) | 2),
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THROUGHPUT_QOS_TIER_2 = ((0xFE << 16) | 3),
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THROUGHPUT_QOS_TIER_3 = ((0xFE << 16) | 4),
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THROUGHPUT_QOS_TIER_4 = ((0xFE << 16) | 5),
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THROUGHPUT_QOS_TIER_5 = ((0xFE << 16) | 6),
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};
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#define LATENCY_QOS_LAUNCH_DEFAULT_TIER LATENCY_QOS_TIER_3
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#define THROUGHPUT_QOS_LAUNCH_DEFAULT_TIER THROUGHPUT_QOS_TIER_3
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typedef integer_t task_throughput_qos_t;
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struct task_qos_policy {
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task_latency_qos_t task_latency_qos_tier;
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task_throughput_qos_t task_throughput_qos_tier;
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};
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typedef struct task_qos_policy *task_qos_policy_t;
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#define TASK_QOS_POLICY_COUNT ((mach_msg_type_number_t) \
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(sizeof (struct task_qos_policy) / sizeof (integer_t)))
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/* These should be removed - they belong in proc_info.h */
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#define PROC_FLAG_DARWINBG 0x8000 /* process in darwin background */
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#define PROC_FLAG_EXT_DARWINBG 0x10000 /* process in darwin background - external enforcement */
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#define PROC_FLAG_IOS_APPLEDAEMON 0x20000 /* process is apple ios daemon */
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#define PROC_FLAG_IOS_IMPPROMOTION 0x80000 /* process is apple ios daemon */
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#define PROC_FLAG_ADAPTIVE 0x100000 /* Process is adaptive */
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#define PROC_FLAG_ADAPTIVE_IMPORTANT 0x200000 /* Process is adaptive, and is currently important */
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#define PROC_FLAG_IMPORTANCE_DONOR 0x400000 /* Process is marked as an importance donor */
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#define PROC_FLAG_SUPPRESSED 0x800000 /* Process is suppressed */
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#define PROC_FLAG_APPLICATION 0x1000000 /* Process is an application */
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#define PROC_FLAG_IOS_APPLICATION PROC_FLAG_APPLICATION /* Process is an application */
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#endif /* _MACH_TASK_POLICY_H_ */ |