No, it seem that mksymtab forget to handle the case you described.
This was handled in the past, but I forget where the logic was. Let me
look around a bit.
... after a bit ...
Googling, I find that there was some handling in the simulator for
Cygwin. Some older tool toolchains did prepend the underscore character
to the symbol name. Look at CONFIG_SIM_CYGWIN_DECORATED.
46 config SIM_CYGWIN_DECORATED
47 bool "Decorated Cygwin names"
48 default n
49 depends on WINDOWS_CYGWIN
50 ---help---
51 Older versions of Cygwin tools decorated C
symbol names by adding an
52 underscore to the beginning of the symbol
name. Newer versions of
53 Cygwin do not seem to do this.
54
55 How do you know if you need this option? You
could look at the generated
56 symbol tables to see if there are underscore
characters at the beginning
57 of the symbol names. Or, if you need this
option, the simulation will not
58 run: It will crash early, probably in some
function due to the failure to
59 allocate memory.
Currently that appears only at:
* arch/sim/Kconfig:config SIM_CYGWIN_DECORATED
* arch/sim/src/nuttx-names.in: (defined(CONFIG_HOST_WINDOWS) &&
defined(CONFIG_SIM_CYGWIN_DECORATED))
* boards/sim/sim/README.txt: CONFIG_SIM_CYGWIN_DECORATED=n
* boards/sim/sim/README.txt: do not seem to do this. Deselecting
CONFIG_SIM_CYGWIN_DECORATED will
Which I think is insufficient. Probably some of the support was removed?
I was thinking that there was a similar underscore issue with older SDCC
toolchains, but I can't find anything now (except some references in
arch/z80/src/Makefile.sdccw).
