QEMU

linux-user/mmap build failure using Clang 10

Bug #1878628 reported by Philippe Mathieu-Daudé
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
QEMU
Fix Released
Undecided
Unassigned

Bug Description

When building with Clang 10 on Fedora 32, we get:

    CC linux-user/mmap.o
  linux-user/mmap.c:720:49: error: result of comparison 'unsigned long' > 18446744073709551615 is always false [-Werror,-Wtautological-type-limit-compare]
          if ((unsigned long)host_addr + new_size > (abi_ulong)-1) {
              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~

Revision history for this message
Philippe Mathieu-Daudé (philmd) wrote :

Suggested fix: Use -Wno-tautological-type-limit-compare in configure:

https://<email address hidden>/msg699808.html

Revision history for this message
Philippe Mathieu-Daudé (philmd) wrote :

Patch posted:
https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00856.html

Changed in qemu:
status: New → In Progress
Revision history for this message
Philippe Mathieu-Daudé (philmd) wrote :

Merged as commit aabab96797a7d61989c25a7ca2b094591bbc74f9.

Changed in qemu:
status: In Progress → Fix Committed
Thomas Huth (th-huth)
Changed in qemu:
status: Fix Committed → Fix Released
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