On 2018-Nov-10, at 12:28, Kyle Evans <kevans at freebsd.org> wrote:
> On Sat, Nov 10, 2018 at 11:38 AM Mark Millard via freebsd-ports
> <[email protected]> wrote:
>>
>> Having actually installed the reverted code fist ( -r438807 ),
>> cmake's package stage is now well past were it was failing.
>>
>> So it is not the pkg vintage that matters: it is the qemu-sbruno
>> vintage that matters.
>>
>> (gcc8 getting that far is hours away: full bootstrap, so mostly
>> emulated.)
>>
>
> I find the assertion you've reported fairly bizarre, since all of the
> page_set_flags invocations we would've touched are generally of the
> form `page_set_flags(start, start + len, ...)` -- I'm working on
> reproducing locally, though.
Looking at the overall sources for the two versions ( as seen via
-r483807 and -r484565 ) I find a possibly-significant changed file:
# diff -u
/wrkdirs/usr/ports/emulators/qemu-user-static/*work/qemu-bsd-user-*/bsd-user/mmap.c
| more
---
/wrkdirs/usr/ports/emulators/qemu-user-static/483807-work/qemu-bsd-user-495fb3a/bsd-user/mmap.c
2018-05-25 07:28:13.000000000 -0700
+++
/wrkdirs/usr/ports/emulators/qemu-user-static/484565-work/qemu-bsd-user-2cb0cdd/bsd-user/mmap.c
2018-11-09 09:27:18.000000000 -0800
(I'll not list much of the differences here.)
It includes things like:
-static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size)
+static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size,
abi_ulong alignment)
. . .
-abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size)
+static abi_ulong mmap_find_vma_aligned(abi_ulong start, abi_ulong size,
abi_ulong alignment)
. . .
+abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size)
+{
+ return mmap_find_vma_aligned(start, size, 0);
+}
+
and changes inside:
abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
int flags, int fd, off_t offset)
This looks like it might change what address ranges are used.
(But I do not claim familiarity with the code or its use.)
===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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