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copied!<p>There is a <a href="http://osxbook.com/book/bonus/chapter11/procfs/" rel="noreferrer">MacFUSE implementation of procfs</a>. With it, you can get the memory map as follows:</p> <pre><code>cat /proc/PID/task/vmmap </code></pre> <p>Looking at the <a href="http://macfuse.googlecode.com/svn/trunk/filesystems/procfs/" rel="noreferrer">source code</a>, it looks like it's using the <a href="http://www.gnu.org/software/hurd/gnumach-doc/Virtual-Memory-Interface.html#Virtual-Memory-Interface" rel="noreferrer">Mach virtual memory interface</a> to get the memory map from the kernel.</p> <p>Here's the implementation for the <code>vmmap</code> pseudofile:</p> <pre><code>/* * procfs as a MacFUSE file system for Mac OS X * * Copyright Amit Singh. All Rights Reserved. * http://osxbook.com * * http://code.google.com/p/macfuse/ * * Source License: GNU GENERAL PUBLIC LICENSE (GPL) */ READ_HANDLER(proc__task__vmmap) { int len = -1; kern_return_t kr; #define MAX_VMMAP_SIZE 65536 /* XXX */ char tmpbuf[MAX_VMMAP_SIZE]; task_t the_task; pid_t pid = strtol(argv[0], NULL, 10); kr = task_for_pid(mach_task_self(), pid, &the_task); if (kr != KERN_SUCCESS) { return -EIO; } vm_size_t vmsize; vm_address_t address; vm_region_basic_info_data_t info; mach_msg_type_number_t info_count; vm_region_flavor_t flavor; memory_object_name_t object; kr = KERN_SUCCESS; address = 0; len = 0; do { flavor = VM_REGION_BASIC_INFO; info_count = VM_REGION_BASIC_INFO_COUNT; kr = vm_region(the_task, &address, &vmsize, flavor, (vm_region_info_t)&info, &info_count, &object); if (kr == KERN_SUCCESS) { if (len >= MAX_VMMAP_SIZE) { goto gotdata; } len += snprintf(tmpbuf + len, MAX_VMMAP_SIZE - len, "%08x-%08x %8uK %c%c%c/%c%c%c %11s %6s %10s uwir=%hu sub=%u\n", address, (address + vmsize), (vmsize >> 10), (info.protection & VM_PROT_READ) ? 'r' : '-', (info.protection & VM_PROT_WRITE) ? 'w' : '-', (info.protection & VM_PROT_EXECUTE) ? 'x' : '-', (info.max_protection & VM_PROT_READ) ? 'r' : '-', (info.max_protection & VM_PROT_WRITE) ? 'w' : '-', (info.max_protection & VM_PROT_EXECUTE) ? 'x' : '-', inheritance_strings[info.inheritance], (info.shared) ? "shared" : "-", behavior_strings[info.behavior], info.user_wired_count, info.reserved); address += vmsize; } else if (kr != KERN_INVALID_ADDRESS) { if (the_task != MACH_PORT_NULL) { mach_port_deallocate(mach_task_self(), the_task); } return -EIO; } } while (kr != KERN_INVALID_ADDRESS); gotdata: if (the_task != MACH_PORT_NULL) { mach_port_deallocate(mach_task_self(), the_task); } READ_PROC_TASK_EPILOGUE(); } </code></pre>

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