Added define 'unused_' for '__attribute__((unused))'. The oldest version
of GCC with online docs (GCC 2.95.3, released in March 16, 2001 [1])
already has support for this attribute, so it doesn't make sense to
check the version.
Renamed 'noreturn' to 'noreturn_' for consistency.
[1] https://gcc.gnu.org/onlinedocs/
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
Previously, JR was only allowed to labels (in the same section, or
different sections). When trying to JR to an address specified as a
numeric value, rgbasm would fail to calculate the JR offset (as it
doesn't know the final address of the JR so it can't calculate the
difference).
This patch makes rgblink calculate the offset whenever there is a JR.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
Previously, JR was only allowed if the destination label was in the same
section as the JR. This patch removes this restriction. The check to see
if the relative value overflows is now done when linking the ROM.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
With permission from the main authors [1], most of the code has been
relicensed under the MIT license.
SPDX license identifiers are used so that the license headers in source
code files aren't too large.
Add CONTRIBUTORS.rst file.
[1] https://github.com/rednex/rgbds/issues/128
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
NULL error messages have been given a description.
Messages that weren't descriptive enough now also print the name of the
function that has failed.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
ROMX and WRAMX bank numers are stored in an object file as their number
minus one. This means that this offset has to be applied somewhere.
The old code applied the fix for ROMX and WRAMX in two different places.
It looks like the patch that added support for WRAMX didn't set the
offset correctly in 'src/link/assign.c'. When this was fixed, it was
done in the wrong place, in 'src/asm/asm.y'. This patch moves the fix to
'src/link/assign.c'.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
The bank of a section can be requested with `BANK("Section Name")`, and
the bank of the current section with `BANK(@)`. In both cases, the bank
number is resolved by the linker.
New commands have been added to the list of RPN commands of object
files, and the rest has been moved so that new additions don't force a
new change in the number of the enumerations.
Increase object file version, as it is now incompatible with the old
format.
Update manpages to reflect the new ways of using `BANK()` and the new
format of the object files.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
Not all occurrences have been replaced, in some cases they have been
left as they were before (like in rgbgfx and when they are in the
interface of a C standard library function).
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
In some implementations of libc the function fread has the attribute
`warn_unused_result`, that is treated as an error by the compiler as
specified in the flags passed to it.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
Now, the object file in which each definition is (as well as the source
file and line) are printed with the error message.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
This is useful to generate error messages when there is a symbol that
appears in more than one object file.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
The previous change has broken compatibility of object files, so it is
needed to increment the version number to make the linker reject files
generated with the old code.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
This option has been added to all programs of the toolchain, and it
prints the version string of the toolchain.
Manpages and help command line output updated.
Add missing 'w' flag to the command line output of rgbasm. It was
correctly documented in the manpages.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
The max size of some section types depends on the flags passed to
rgblink. Instead of doing in rgbasm some checks (for the sections with
fixed size) and others in rgblink, all checks are now done in rgblink.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
For some reason, `No` looks weird in the HTML version of the docs.
Some other random fixes.
Tables in src/asm/rgbasm.5 are still broken in the HTML docs.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
When including a linkerscript from a parent one, the lexer didn't
include a newline character because the INCLUDE command was handled
before reaching the newline. This behaviour is needed to parse the last
line of a linkerscript correctly (it doesn't have a newline character).
However, this meant that when the included file was being parsed, the
first line was considered a continuation of the last line of the parent
script (the INCLUDE command), which means that the first line of an
included linkerscript could only contain a comment (or nothing at all).
This patch adds a newline character to the buffer used by the lexer so
that the parser will receive a newline and it will handle the first line
of the included file as expected.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
rgblink option -w has been restored to its previous behaviour: make WRAM
a continous section instead of spliting it into WRAM0 and WRAMX.
To enable DMG mode, option -d has to be used instead. This option
automatically enables -w.
Update tests.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
Files can now be included with the following syntax:
INCLUDE "path.link"
The maximum include depth is 5.
Fixed linkerscript parser and lexer error messages so that they are more
informative (show file and line of the error).
Man page updated.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
The error message shouldn't specify the name of the binary, that's
supposed to be known by the caller.
Update test reference outputs.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
