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Cygwin: Show details of all memory regions in dumper debug output

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This commit is contained in:
Jon Turney 2020-07-01 16:08:59 +01:00
parent 119e8d5c11
commit b40983eda1
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GPG Key ID: C7C86F0370285C81
1 changed files with 79 additions and 20 deletions
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99
winsup/utils/dumper.cc
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@ -289,6 +289,25 @@ dumper::add_module (LPVOID base_address)
#define PAGE_BUFFER_SIZE 4096
void protect_dump(DWORD protect, char *buf)
{
const char *pt[10];
pt[0] = (protect & PAGE_READONLY) ? "RO " : "";
pt[1] = (protect & PAGE_READWRITE) ? "RW " : "";
pt[2] = (protect & PAGE_WRITECOPY) ? "WC " : "";
pt[3] = (protect & PAGE_EXECUTE) ? "EX " : "";
pt[4] = (protect & PAGE_EXECUTE_READ) ? "EXRO " : "";
pt[5] = (protect & PAGE_EXECUTE_READWRITE) ? "EXRW " : "";
pt[6] = (protect & PAGE_EXECUTE_WRITECOPY) ? "EXWC " : "";
pt[7] = (protect & PAGE_GUARD) ? "GRD " : "";
pt[8] = (protect & PAGE_NOACCESS) ? "NA " : "";
pt[9] = (protect & PAGE_NOCACHE) ? "NC " : "";
buf[0] = '\0';
for (int i = 0; i < 10; i++)
strcat (buf, pt[i]);
}
int
dumper::collect_memory_sections ()
{
@ -313,10 +332,65 @@ dumper::collect_memory_sections ()
break;
int skip_region_p = 0;
const char *disposition = "dumped";
if (mbi.Protect & (PAGE_NOACCESS | PAGE_GUARD) ||
mbi.State != MEM_COMMIT)
skip_region_p = 1;
if (mbi.Protect & PAGE_NOACCESS)
{
skip_region_p = 1;
disposition = "skipped due to noaccess";
}
if (mbi.Protect & PAGE_GUARD)
{
skip_region_p = 1;
disposition = "skipped due to guardpage";
}
if (mbi.State != MEM_COMMIT)
{
skip_region_p = 1;
disposition = "skipped due to uncommited";
}
{
char buf[10 * 6];
protect_dump(mbi.Protect, buf);
const char *state = "";
const char *type = "";
if (mbi.State & MEM_COMMIT)
{
state = "COMMIT";
}
else if (mbi.State & MEM_FREE)
{
state = "FREE";
type = "FREE";
}
else if (mbi.State & MEM_RESERVE)
{
state = "RESERVE";
}
if (mbi.Type & MEM_IMAGE)
{
type = "IMAGE";
}
else if (mbi.Type & MEM_MAPPED)
{
type = "MAPPED";
}
else if (mbi.Type & MEM_PRIVATE)
{
type = "PRIVATE";
}
deb_printf ("region 0x%016lx-0x%016lx (protect = %-8s, state = %-7s, type = %-7s, %s)\n",
current_page_address,
current_page_address + mbi.RegionSize,
buf, state, type, disposition);
}
if (!skip_region_p)
{
@ -326,26 +400,11 @@ dumper::collect_memory_sections ()
if (!ReadProcessMemory (hProcess, current_page_address, mem_buf, sizeof (mem_buf), &done))
{
DWORD err = GetLastError ();
const char *pt[10];
pt[0] = (mbi.Protect & PAGE_READONLY) ? "RO " : "";
pt[1] = (mbi.Protect & PAGE_READWRITE) ? "RW " : "";
pt[2] = (mbi.Protect & PAGE_WRITECOPY) ? "WC " : "";
pt[3] = (mbi.Protect & PAGE_EXECUTE) ? "EX " : "";
pt[4] = (mbi.Protect & PAGE_EXECUTE_READ) ? "EXRO " : "";
pt[5] = (mbi.Protect & PAGE_EXECUTE_READWRITE) ? "EXRW " : "";
pt[6] = (mbi.Protect & PAGE_EXECUTE_WRITECOPY) ? "EXWC " : "";
pt[7] = (mbi.Protect & PAGE_GUARD) ? "GRD " : "";
pt[8] = (mbi.Protect & PAGE_NOACCESS) ? "NA " : "";
pt[9] = (mbi.Protect & PAGE_NOCACHE) ? "NC " : "";
char buf[10 * 6];
buf[0] = '\0';
for (int i = 0; i < 10; i++)
strcat (buf, pt[i]);
deb_printf ("warning: failed to read memory at %p-%p (protect = %s), error %ld.\n",
deb_printf ("warning: failed to read memory at %p-%p, error %ld.\n",
current_page_address,
current_page_address + mbi.RegionSize,
buf, err);
err);
skip_region_p = 1;
}
}