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Commit e8f1468b authored by Suren Baghdasaryan's avatar Suren Baghdasaryan
Browse files

libmeminfo: Report VMA flags in showmap report 



Add VMA flags into showmap report so that we can distinguish different
sections of an executable or a library.

Bug: 138148041
Test: showmap -v <PID>
Change-Id: Ic1a13accbea447548c75a0c54d750280e40c6de8
Signed-off-by: default avatarSuren Baghdasaryan <surenb@google.com>
parent 11dc734a

libmeminfo/tools/showmap.cpp

+19 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <inttypes.h>

#include <stdio.h>

#include <stdlib.h>

#include <sys/mman.h>

#include <sys/signal.h>

#include <sys/types.h>

#include <unistd.h>
@@ -139,6 +140,9 @@ static void print_header() { 
    if (!g_verbose && !g_show_addr) {

        printf("   # ");

    }

    if (g_verbose) {

        printf(" flags ");

    }

    printf(" object\n");

}
@@ -150,6 +154,9 @@ static void print_divider() { 
    if (!g_verbose && !g_show_addr) {

        printf("---- ");

    }

    if (g_verbose) {

        printf("------ ");

    }

    printf("------------------------------\n");

}
@@ -169,6 +176,18 @@ static void print_vmainfo(const VmaInfo& v, bool total) { 
    if (!g_verbose && !g_show_addr) {

        printf("%4" PRIu32 " ", v.count);

    }

    if (g_verbose) {

        if (total) {

            printf("       ");

        } else {

            std::string flags_str("---");

            if (v.vma.flags & PROT_READ) flags_str[0] = 'r';

            if (v.vma.flags & PROT_WRITE) flags_str[1] = 'w';

            if (v.vma.flags & PROT_EXEC) flags_str[2] = 'x';



            printf("%6s ", flags_str.c_str());

        }

    }

}



static int showmap(void) {