Trung Nguyen
a2cb4665de
- Added some utility functions to the `Context` class. - Updated the `sockaddr` handler to retrieve the next sibling rather than the sibling at index 2. This allows the handler to work for syscalls where the `socklen_t` argument is not the third one, for example, `_kern_recvfrom`. - Added the ability to print the `flatArgs` for `_kern_exec` and `_kern_load_image`. Change-Id: Ia4cf0a30a5cf972274820bbf068101450db52189 Reviewed-on: https://review.haiku-os.org/c/haiku/+/6498 Reviewed-by: waddlesplash <[email protected]>
83 lines
1.5 KiB
C++
83 lines
1.5 KiB
C++
/*
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* Copyright 2007, Haiku Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Hugo Santos <[email protected]>
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* Ingo Weinhold <[email protected]>
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*/
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#include "Context.h"
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#include <stdio.h>
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#include <string.h>
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Parameter *
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Context::GetNextSibling(Parameter *param) const
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{
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for (int32 i = 0; i + 1 < fSyscall->CountParameters(); i++) {
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if (fSyscall->ParameterAt(i) == param)
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return fSyscall->ParameterAt(i + 1);
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}
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return NULL;
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}
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string
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Context::FormatSigned(int64 value, int bytes) const
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{
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char tmp[32];
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// decimal
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if (fDecimal) {
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snprintf(tmp, sizeof(tmp), "%" B_PRId64, value);
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return tmp;
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}
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// hex
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snprintf(tmp, sizeof(tmp), "0x%" B_PRIx64, value);
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// Negative numbers are expanded when being converted to int64. Hence
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// we skip all but the last 2 * bytes hex digits to retain the original
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// type's width.
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int len = strlen(tmp);
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int offset = len - min_c(len, bytes * 2);
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// use the existing "0x" prefix or prepend it again
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if (offset <= 2) {
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offset = 0;
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} else {
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tmp[--offset] = 'x';
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tmp[--offset] = '0';
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}
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return tmp + offset;
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}
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string
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Context::FormatUnsigned(uint64 value) const
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{
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char tmp[32];
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snprintf(tmp, sizeof(tmp), fDecimal ? "%" B_PRIu64 : "0x%" B_PRIx64, value);
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return tmp;
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}
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string
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Context::FormatFlags(uint64 value) const
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{
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char tmp[32];
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snprintf(tmp, sizeof(tmp), "0x%" B_PRIx64, value);
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return tmp;
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}
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string
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Context::FormatPointer(const void *address) const
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{
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char buffer[32];
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sprintf(buffer, "%p", address);
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return buffer;
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}
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