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[WINESYNC] dbghelp: Use RtlComputeCrc32().

Browse source 
Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

wine commit id a91b0faefd801d44063c8d9289dbc69de985f8b6 by Zebediah Figura <z.figura12@gmail.com>
This commit is contained in:
winesync 2020-09-11 16:38:46 +02:00 • committed by Jérôme Gardou
parent 70880dd15f
commit 8105772fc4
5 changed files with 35 additions and 170 deletions
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1
dll/win32/dbghelp/CMakeLists.txt
View file

@ -53,7 +53,6 @@ else()
cpu_i386.c
cpu_ppc.c
cpu_x86_64.c
crc32.c
dbghelp.c
dwarf.c
elf_module.c

149
dll/win32/dbghelp/crc32.c
View file

@ -1,149 +0,0 @@
/*
* File crc32.c - calculate CRC32 checksum of a file
*
* Copyright (C) 1996, Eric Youngdale.
* 1999-2007 Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdio.h>
#include "dbghelp_private.h"
/* Copyright (C) 1986 Gary S. Brown
* Modified by Robert Shearman. You may use the following calc_crc32 code or
* tables extracted from it, as desired without restriction. */
/**********************************************************************\
|* Demonstration program to compute the 32-bit CRC used as the frame *|
|* check sequence in ADCCP (ANSI X3.66, also known as FIPS PUB 71 *|
|* and FED-STD-1003, the U.S. versions of CCITT's X.25 link-level *|
|* protocol). The 32-bit FCS was added via the Federal Register, *|
|* 1 June 1982, p.23798. I presume but don't know for certain that *|
|* this polynomial is or will be included in CCITT V.41, which *|
|* defines the 16-bit CRC (often called CRC-CCITT) polynomial. FIPS *|
|* PUB 78 says that the 32-bit FCS reduces otherwise undetected *|
|* errors by a factor of 10^-5 over 16-bit FCS. *|
\**********************************************************************/
/* First, the polynomial itself and its table of feedback terms. The */
/* polynomial is */
/* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */
/* Note that we take it "backwards" and put the highest-order term in */
/* the lowest-order bit. The X^32 term is "implied"; the LSB is the */
/* X^31 term, etc. The X^0 term (usually shown as "+1") results in */
/* the MSB being 1. */
/* Note that the usual hardware shift register implementation, which */
/* is what we're using (we're merely optimizing it by doing eight-bit */
/* chunks at a time) shifts bits into the lowest-order term. In our */
/* implementation, that means shifting towards the right. Why do we */
/* do it this way? Because the calculated CRC must be transmitted in */
/* order from highest-order term to lowest-order term. UARTs transmit */
/* characters in order from LSB to MSB. By storing the CRC this way, */
/* we hand it to the UART in the order low-byte to high-byte; the UART */
/* sends each low-bit to high-bit; and the result is transmission bit */
/* by bit from highest- to lowest-order term without requiring any bit */
/* shuffling on our part. Reception works similarly. */
/* The feedback terms table consists of 256, 32-bit entries. Notes: */
/* */
/* 1. The table can be generated at runtime if desired; code to do so */
/* is shown later. It might not be obvious, but the feedback */
/* terms simply represent the results of eight shift/xor opera- */
/* tions for all combinations of data and CRC register values. */
/* */
/* 2. The CRC accumulation logic is the same for all CRC polynomials, */
/* be they sixteen or thirty-two bits wide. You simply choose the */
/* appropriate table. Alternatively, because the table can be */
/* generated at runtime, you can start by generating the table for */
/* the polynomial in question and use exactly the same "updcrc", */
/* if your application needn't simultaneously handle two CRC */
/* polynomials. (Note, however, that XMODEM is strange.) */
/* */
/* 3. For 16-bit CRCs, the table entries need be only 16 bits wide; */
/* of course, 32-bit entries work OK if the high 16 bits are zero. */
/* */
/* 4. The values must be right-shifted by eight bits by the "updcrc" */
/* logic; the shift must be unsigned (bring in zeroes). On some */
/* hardware you could probably optimize the shift in assembler by */
/* using byte-swap instructions. */
DWORD calc_crc32(int fd)
{
#define UPDC32(octet,crc) (crc_32_tab[((crc) ^ (octet)) & 0xff] ^ ((crc) >> 8))
static const DWORD crc_32_tab[] =
{ /* CRC polynomial 0xedb88320 */
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};
int i, r;
unsigned char buffer[8192];
DWORD crc = ~0;
lseek(fd, 0, SEEK_SET);
while ((r = read(fd, buffer, sizeof(buffer))) > 0)
{
for (i = 0; i < r; i++) crc = UPDC32(buffer[i], crc);
}
return ~crc;
#undef UPDC32
}

51
dll/win32/dbghelp/dbghelp.c
View file

@ -21,7 +21,9 @@
#ifndef DBGHELP_STATIC_LIB
#include "config.h"
#include <unistd.h>
#include "dbghelp_private.h"
#include "winternl.h"
#include "winerror.h"
#include "psapi.h"
#include "wine/debug.h"
@ -38,15 +40,15 @@ WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
* - support for symbols' types is still partly missing
* + C++ support
* + we should store the underlying type for an enum in the symt_enum struct
* + for enums, we store the names & values (associated to the enum type),
* + for enums, we store the names & values (associated to the enum type),
* but those values are not directly usable from a debugger (that's why, I
* assume, that we have also to define constants for enum values, as
* assume, that we have also to define constants for enum values, as
* Codeview does BTW.
* + SymEnumTypes should only return *user* defined types (UDT, typedefs...) not
* all the types stored/used in the modules (like char*)
* - SymGetLine{Next|Prev} don't work as expected (they don't seem to work across
* functions, and even across function blocks...). Basically, for *Next* to work
* it requires an address after the prolog of the func (the base address of the
* it requires an address after the prolog of the func (the base address of the
* func doesn't work)
* - most options (dbghelp_options) are not used (loading lines...)
* - in symbol lookup by name, we don't use RE everywhere we should. Moreover, when
@ -58,13 +60,13 @@ WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
* while processing a function's parameters
* + add support for function-less labels (as MSC seems to define them)
* + C++ management
* - stabs:
* - stabs:
* + when, in a same module, the same definition is used in several compilation
* units, we get several definitions of the same object (especially
* units, we get several definitions of the same object (especially
* struct/union). we should find a way not to duplicate them
* + in some cases (dlls/user/dialog16.c DIALOG_GetControl16), the same static
* global variable is defined several times (at different scopes). We are
* getting several of those while looking for a unique symbol. Part of the
* getting several of those while looking for a unique symbol. Part of the
* issue is that we don't give a scope to a static variable inside a function
* + C++ management
*/
@ -187,7 +189,7 @@ BOOL WINAPI SymSetSearchPathW(HANDLE hProcess, PCWSTR searchPath)
if (!searchPath) return FALSE;
HeapFree(GetProcessHeap(), 0, pcs->search_path);
pcs->search_path = lstrcpyW(HeapAlloc(GetProcessHeap(), 0,
pcs->search_path = lstrcpyW(HeapAlloc(GetProcessHeap(), 0,
(lstrlenW(searchPath) + 1) * sizeof(WCHAR)),
searchPath);
return TRUE;
@ -295,7 +297,7 @@ static BOOL check_live_target(struct process* pcs)
* our internal ELF modules representation (loading / unloading). This way,
* we'll pair every loaded builtin PE module with its ELF counterpart (and
* access its debug information).
* - if fInvadeProcess (in SymInitialize) is FALSE, we check anyway if the
* - if fInvadeProcess (in SymInitialize) is FALSE, we check anyway if the
* hProcess refers to a running process. We use some heuristics here, so YMMV.
* If we detect a live target, then we get the same handling as if
* fInvadeProcess is TRUE (except that the modules are not loaded). Otherwise,
@ -303,7 +305,7 @@ static BOOL check_live_target(struct process* pcs)
* counterpart. Hence we won't be able to provide the requested debug
* information. We'll however be able to load native PE modules (and their
* debug information) without any trouble.
* Note also that this scheme can be intertwined with the deferred loading
* Note also that this scheme can be intertwined with the deferred loading
* mechanism (ie only load the debug information when we actually need it).
*/
BOOL WINAPI SymInitializeW(HANDLE hProcess, PCWSTR UserSearchPath, BOOL fInvadeProcess)
@ -336,7 +338,7 @@ BOOL WINAPI SymInitializeW(HANDLE hProcess, PCWSTR UserSearchPath, BOOL fInvadeP
if (UserSearchPath)
{
pcs->search_path = lstrcpyW(HeapAlloc(GetProcessHeap(), 0,
pcs->search_path = lstrcpyW(HeapAlloc(GetProcessHeap(), 0,
(lstrlenW(UserSearchPath) + 1) * sizeof(WCHAR)),
UserSearchPath);
}
@ -373,7 +375,7 @@ BOOL WINAPI SymInitializeW(HANDLE hProcess, PCWSTR UserSearchPath, BOOL fInvadeP
pcs->dbg_hdr_addr = 0;
pcs->next = process_first;
process_first = pcs;
#ifndef DBGHELP_STATIC_LIB
if (check_live_target(pcs))
{
@ -661,11 +663,11 @@ static BOOL sym_register_cb(HANDLE hProcess,
/***********************************************************************
* SymRegisterCallback (DBGHELP.@)
*/
BOOL WINAPI SymRegisterCallback(HANDLE hProcess,
BOOL WINAPI SymRegisterCallback(HANDLE hProcess,
PSYMBOL_REGISTERED_CALLBACK CallbackFunction,
PVOID UserContext)
{
TRACE("(%p, %p, %p)\n",
TRACE("(%p, %p, %p)\n",
hProcess, CallbackFunction, UserContext);
return sym_register_cb(hProcess, reg_cb64to32, CallbackFunction, (DWORD_PTR)UserContext, FALSE);
}
@ -673,11 +675,11 @@ BOOL WINAPI SymRegisterCallback(HANDLE hProcess,
/***********************************************************************
* SymRegisterCallback64 (DBGHELP.@)
*/
BOOL WINAPI SymRegisterCallback64(HANDLE hProcess,
BOOL WINAPI SymRegisterCallback64(HANDLE hProcess,
PSYMBOL_REGISTERED_CALLBACK64 CallbackFunction,
ULONG64 UserContext)
{
TRACE("(%p, %p, %s)\n",
TRACE("(%p, %p, %s)\n",
hProcess, CallbackFunction, wine_dbgstr_longlong(UserContext));
return sym_register_cb(hProcess, CallbackFunction, NULL, UserContext, FALSE);
}
@ -685,11 +687,11 @@ BOOL WINAPI SymRegisterCallback64(HANDLE hProcess,
/***********************************************************************
* SymRegisterCallbackW64 (DBGHELP.@)
*/
BOOL WINAPI SymRegisterCallbackW64(HANDLE hProcess,
BOOL WINAPI SymRegisterCallbackW64(HANDLE hProcess,
PSYMBOL_REGISTERED_CALLBACK64 CallbackFunction,
ULONG64 UserContext)
{
TRACE("(%p, %p, %s)\n",
TRACE("(%p, %p, %s)\n",
hProcess, CallbackFunction, wine_dbgstr_longlong(UserContext));
return sym_register_cb(hProcess, CallbackFunction, NULL, UserContext, TRUE);
}
@ -736,3 +738,18 @@ void WINAPI WinDbgExtensionDllInit(PWINDBG_EXTENSION_APIS lpExtensionApis,
unsigned short major, unsigned short minor)
{
}
#ifndef DBGHELP_STATIC_LIB
DWORD calc_crc32(int fd)
{
BYTE buffer[8192];
DWORD crc = 0;
int len;
lseek(fd, 0, SEEK_SET);
while ((len = read(fd, buffer, sizeof(buffer))) > 0)
crc = RtlComputeCrc32(crc, buffer, len);
return crc;
}
#endif

2
dll/win32/dbghelp/dbghelp_private.h
View file

@ -616,8 +616,6 @@ extern BOOL pcs_callback(const struct process* pcs, ULONG action, void*
extern void* fetch_buffer(struct process* pcs, unsigned size) DECLSPEC_HIDDEN;
extern const char* wine_dbgstr_addr(const ADDRESS64* addr) DECLSPEC_HIDDEN;
extern struct cpu* cpu_find(DWORD) DECLSPEC_HIDDEN;
/* crc32.c */
extern DWORD calc_crc32(int fd) DECLSPEC_HIDDEN;
typedef BOOL (*enum_modules_cb)(const WCHAR*, unsigned long addr, void* user);

2
sdk/tools/winesync/dbghelp.cfg
View file

@ -4,4 +4,4 @@ files:
include/dbghelp.h: sdk/include/psdk/dbghelp.h
include/wine/mscvpdb.h: sdk/include/reactos/wine/mscvpdb.h
tags:
wine: 4aa7fbe0561e6a27f098a05a63c5a7d12397e678
wine: a91b0faefd801d44063c8d9289dbc69de985f8b6