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Add -nodevicespecs option for avr.

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gcc/
	Add -nodevicespecs option for avr.

	PR target/93182
	* config/avr/avr.opt (-nodevicespecs): New driver option.
	* config/avr/driver-avr.c (avr_devicespecs_file): Only issue
	"-specs=device-specs/..." if that option is not set.
	* doc/invoke.texi (AVR Options) <-nodevicespecs>: Document.

From-SVN: r279995
This commit is contained in:
Georg-Johann Lay 2020-01-08 09:41:59 +00:00 • committed by Georg-Johann Lay
parent f30dd60766
commit e3e131c9bb
3 changed files with 19 additions and 5 deletions
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12
gcc/ChangeLog
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@ -1,6 +1,16 @@
2020-01-08 Georg-Johann Lay <avr@gjlay.de>
Implement 64-bit double functions.
Add -nodevicespecs option for avr.
PR target/93182
* config/avr/avr.opt (-nodevicespecs): New driver option.
* config/avr/driver-avr.c (avr_devicespecs_file): Only issue
"-specs=device-specs/..." if that option is not set.
* doc/invoke.texi (AVR Options) <-nodevicespecs>: Document.
2020-01-08 Georg-Johann Lay <avr@gjlay.de>
Implement 64-bit double functions for avr.
PR target/92055
* config.gcc (tm_defines) [target=avr]: Support --with-libf7,

4
gcc/config/avr/avr.opt
View file

@ -127,6 +127,10 @@ nodevicelib
Driver Target Report RejectNegative
Do not link against the device-specific library lib<MCU>.a.
nodevicespecs
Driver Target Report RejectNegative
Do not use the device-specific specs file device-specs/specs-<MCU>.
Enum
Name(avr_bits_e) Type(int)
Available BITS selections:

8
gcc/config/avr/driver-avr.c
View file

@ -26,8 +26,8 @@ along with GCC; see the file COPYING3. If not see
#include "diagnostic.h"
#include "tm.h"
// Remove -nodevicelib from the command line if not needed
#define X_NODEVLIB "%<nodevicelib"
// Remove -nodevicelib and -nodevicespecs from the command line if not needed.
#define X_NODEVLIB "%<nodevicelib %<nodevicespecs"
static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
@ -102,8 +102,8 @@ avr_devicespecs_file (int argc, const char **argv)
return X_NODEVLIB;
}
return concat ("-specs=device-specs", dir_separator_str, "specs-",
mmcu, "%s"
return concat ("%{!nodevicespecs:-specs=device-specs", dir_separator_str,
"specs-", mmcu, "%s} %<nodevicespecs"
#if defined (WITH_AVRLIBC)
" %{mmcu=avr*:" X_NODEVLIB "} %{!mmcu=*:" X_NODEVLIB "}",
#else