REF: GNU ld (GNU Tools for Arm Embedded Processors 8-2019-q3-update)
2.32.0.20190703
HOST: Microsoft Windows [Version 10.0.18362.535]
Given the following definitions in a linker script:
_Page = DEFINED(_Spansion) ? 0x200 : 0x0100; /* Spansion has larger pages
*/
_Type = DEFINED(_Spansion) ? 0x53 : 0x46; /* 'S'pansion or 'F'lash */
_Rsvd = DEFINED(_DEBUG) ? 0x52737664 : ~0; /* Literally "Rsvd" */
Then the following lines all work:
. = ALIGN(_Page);
BYTE(_Type);
FILL(0x52737664);
FILL(0x52<<24 | 0x73<<16 | 0x76<<8 | 0x64<<0); /* Complicated expression! */
.section : { } >rom = 0x52737664
However, either of the following lines crash the linker:
FILL(_Rsvd);
.section : { } >rom = _Rsvd
Even if I simplify the definition to:
_Rsvd = 0x52737664; /* Literally "Rsvd" */
I still get the same errors.
These give (depending on which manufacturer's Eclipse IDE I use) either:
collect2.exe: error: ld returned 5 exit status (regardless of whether I
select "-Wl,--verbose" or not)
or
arm-none-eabi/bin/ld.exe: bfd_link_hash_lookup failed: no error (It's the
"no error" part that I like the most!)
It seems like the Fill algorithm doesn't like to use symbols.
Thanks for any feedback on this,
John Adriaan
