mirror of
https://github.com/yuzu-emu/unicorn.git
synced 2024-10-20 09:48:17 +02:00
db8b0a82b1
Support target CPUs having a page size which isn't knownn at compile time. To use this, the CPU implementation should: * define TARGET_PAGE_BITS_VARY * not define TARGET_PAGE_BITS * define TARGET_PAGE_BITS_MIN to the smallest value it might possibly want for TARGET_PAGE_BITS * call set_preferred_target_page_bits() in its realize function to indicate the actual preferred target page size for the CPU (and report any error from it) In CONFIG_USER_ONLY, the CPU implementation should continue to define TARGET_PAGE_BITS appropriately for the guest OS page size. Machines which want to take advantage of having the page size something larger than TARGET_PAGE_BITS_MIN must set the MachineClass minimum_page_bits field to a value which they guarantee will be no greater than the preferred page size for any CPU they create. Note that changing the target page size by setting minimum_page_bits is a migration compatibility break for that machine. For debugging purposes, attempts to use TARGET_PAGE_SIZE before it has been finally confirmed will assert. Backports commit 20bccb82ff3ea09bcb7c4ee226d3160cab15f7da from qemu
103 lines
3.8 KiB
C
103 lines
3.8 KiB
C
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/* Common header file that is included by all of QEMU.
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*
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* This file is supposed to be included only by .c files. No header file should
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* depend on qemu-common.h, as this would easily lead to circular header
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* dependencies.
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*
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* If a header file uses a definition from qemu-common.h, that definition
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* must be moved to a separate header file, and the header that uses it
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* must include that header.
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*/
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#ifndef QEMU_COMMON_H
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#define QEMU_COMMON_H
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#include "qemu/osdep.h"
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#include "qemu/typedefs.h"
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#include "qemu/fprintf-fn.h"
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#include "exec/cpu-common.h"
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#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
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#include "unicorn/platform.h"
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#define qemu_isalnum(c) isalnum((unsigned char)(c))
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#define qemu_isalpha(c) isalpha((unsigned char)(c))
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#define qemu_iscntrl(c) iscntrl((unsigned char)(c))
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#define qemu_isdigit(c) isdigit((unsigned char)(c))
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#define qemu_isgraph(c) isgraph((unsigned char)(c))
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#define qemu_islower(c) islower((unsigned char)(c))
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#define qemu_isprint(c) isprint((unsigned char)(c))
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#define qemu_ispunct(c) ispunct((unsigned char)(c))
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#define qemu_isspace(c) isspace((unsigned char)(c))
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#define qemu_isupper(c) isupper((unsigned char)(c))
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#define qemu_isxdigit(c) isxdigit((unsigned char)(c))
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#define qemu_tolower(c) tolower((unsigned char)(c))
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#define qemu_toupper(c) toupper((unsigned char)(c))
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#define qemu_isascii(c) isascii((unsigned char)(c))
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#define qemu_toascii(c) toascii((unsigned char)(c))
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void *qemu_oom_check(void *ptr);
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#ifdef _WIN32
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/* MinGW needs type casts for the 'buf' and 'optval' arguments. */
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#define qemu_getsockopt(sockfd, level, optname, optval, optlen) \
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getsockopt(sockfd, level, optname, (void *)optval, optlen)
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#define qemu_setsockopt(sockfd, level, optname, optval, optlen) \
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setsockopt(sockfd, level, optname, (const void *)optval, optlen)
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#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
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#define qemu_sendto(sockfd, buf, len, flags, destaddr, addrlen) \
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sendto(sockfd, (const void *)buf, len, flags, destaddr, addrlen)
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#else
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#define qemu_getsockopt(sockfd, level, optname, optval, optlen) \
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getsockopt(sockfd, level, optname, optval, optlen)
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#define qemu_setsockopt(sockfd, level, optname, optval, optlen) \
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setsockopt(sockfd, level, optname, optval, optlen)
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#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, buf, len, flags)
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#define qemu_sendto(sockfd, buf, len, flags, destaddr, addrlen) \
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sendto(sockfd, buf, len, flags, destaddr, addrlen)
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#endif
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/* Error handling. */
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void tcg_exec_init(struct uc_struct *uc, unsigned long tb_size);
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bool tcg_enabled(struct uc_struct *uc);
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struct uc_struct;
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void cpu_exec_init_all(struct uc_struct *uc);
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/**
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* set_preferred_target_page_bits:
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* @bits: number of bits needed to represent an address within the page
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*
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* Set the preferred target page size (the actual target page
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* size may be smaller than any given CPU's preference).
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* Returns true on success, false on failure (which can only happen
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* if this is called after the system has already finalized its
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* choice of page size and the requested page size is smaller than that).
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*/
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bool set_preferred_target_page_bits(struct uc_struct *uc, int bits);
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#include "qemu/module.h"
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// support for calling functions before main code is executed.
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#if defined(_MSC_VER)
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#pragma section(".CRT$XCU",read)
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#define INITIALIZER2_(f,p) \
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static void f(void); \
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__declspec(allocate(".CRT$XCU")) void (*f##_)(void) = f; \
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__pragma(comment(linker,"/include:" p #f "_")) \
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static void f(void)
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#ifdef _WIN64
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#define INITIALIZER(f) INITIALIZER2_(f,"")
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#else
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#define INITIALIZER(f) INITIALIZER2_(f,"_")
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#endif
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#else
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#define INITIALIZER(f) \
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static void f(void) __attribute__((constructor)); \
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static void f(void)
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#endif
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#endif
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