http://sourceware.org/bugzilla/show_bug.cgi?id=13503
Bug #: 13503
Summary: [avr] Support RELOCs to represent a byte
Product: binutils
Version: 2.23 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: binutils
AssignedTo: unassig...@sourceware.org
ReportedBy: g...@gcc.gnu.org
CC: eric.wedding...@atmel.com
Classification: Unclassified
Target: avr
Suppose the following C code from avr-gcc 4.7:
extern const __pgmx char foo;
const __pgmx void * pointer = &foo;
Notice that __pgmx is not a macro but a new built-in keyword for a named
address space that can hold 24-bit pointers.
The code from above tries to assembler the address of foo.
However, there is *no* way to do that in binutils because the recprective
RELOCs like hh8 are not allowed in places they are needed:
.global pointer
.data
.type pointer, @object
.size pointer, 3
pointer:
.word foo
.warning "assembling 24-bit address needs binutils extension for
hh8(foo)"
.byte 0 ; hh8(foo)
avr-gcc emits a "0" to work around that but the code of not correct as the high
part of the address will always be 0.
--
Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.
_______________________________________________
bug-binutils mailing list
bug-binutils@gnu.org
https://lists.gnu.org/mailman/listinfo/bug-binutils
