Thank you for a quick reply.
The error message observed is actually what check_mmap() in
coregrind/m_ume/elf.c reports.
I suspect that we run into issue with VG_(am_get_advisory)() but I want to be
sure.
Please could you grab Valgrind source, apply the attached patch to it
and build it as per http://valgrind.org/downloads/repository.html.
This should create additional debug output which would point at the culprit.
I.
diff --git a/coregrind/m_ume/elf.c b/coregrind/m_ume/elf.c
index 21eb52bcb..427e9937d 100644
--- a/coregrind/m_ume/elf.c
+++ b/coregrind/m_ume/elf.c
@@ -445,14 +445,14 @@ ESZ(Addr) mapelf(struct elfinfo *e, ESZ(Addr) base)
//
// The condition handles the case of a zero-length segment.
if (VG_PGROUNDUP(bss)-VG_PGROUNDDN(addr) > 0) {
- if (0) VG_(debugLog)(0,"ume","mmap_file_fixed_client #1\n");
+ if (1) VG_(debugLog)(0,"ume","mmap_file_fixed_client #1\n");
res = VG_(am_mmap_file_fixed_client)(
VG_PGROUNDDN(addr),
VG_PGROUNDUP(bss)-VG_PGROUNDDN(addr),
prot, /*VKI_MAP_FIXED|VKI_MAP_PRIVATE, */
e->fd, VG_PGROUNDDN(off)
);
- if (0) VG_(am_show_nsegments)(0,"after #1");
+ if (1) VG_(am_show_nsegments)(0,"after #1");
check_mmap(res, VG_PGROUNDDN(addr),
VG_PGROUNDUP(bss)-VG_PGROUNDDN(addr));
}
@@ -463,12 +463,12 @@ ESZ(Addr) mapelf(struct elfinfo *e, ESZ(Addr) base)
bytes = VG_PGROUNDUP(brkaddr)-VG_PGROUNDUP(bss);
if (bytes > 0) {
- if (0) VG_(debugLog)(0,"ume","mmap_anon_fixed_client #2\n");
+ if (1) VG_(debugLog)(0,"ume","mmap_anon_fixed_client #2\n");
res = VG_(am_mmap_anon_fixed_client)(
VG_PGROUNDUP(bss), bytes,
prot
);
- if (0) VG_(am_show_nsegments)(0,"after #2");
+ if (1) VG_(am_show_nsegments)(0,"after #2");
check_mmap(res, VG_PGROUNDUP(bss), bytes);
}
@@ -816,7 +816,7 @@ Int VG_(load_ELF)(Int fd, const HChar* name, /*MOD*/ExeInfo* info)
if (!ok) {
/* bomb out */
SysRes res = VG_(mk_SysRes_Error)(VKI_EINVAL);
- if (0) VG_(printf)("reserve for interp: failed\n");
+ if (1) VG_(printf)("reserve for interp: failed\n");
check_mmap(res, (Addr)interp_addr, interp_size);
/*NOTREACHED*/
}
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