Commit graph

4 commits

Author SHA1 Message Date
Shahab Vahedi
3f7e8eef09 arc: libc: Record r58/r59 in long-jump's buffer
The "longjmp" expects the "setjmp" to save the r58/r59 registers,
if there is any. With this change they are saved accordingly.

Checked for regression with running GCC's DejaGnu tests:

    $ runtest execute.exp=pr56982.c dg-torture.exp=pr48542.c

Signed-off-by: Shahab Vahedi <shahab@synopsys.com>
2024-05-22 14:25:29 -04:00
Yuriy Kolerov
880d537347 arc: libc, libgloss: Remove .file directive from .S files
Assembler for ARCv2 always extends the name provided by
.file directive to an absolute form.

On ARCv3 targets .file directive forces assembler to put
a provided string to DW_AT_name field as is without
extending to an absolute path. Then GDB cannot find
source files because of it.

The best way to fix this issue is just delete lines
with .file directive in .S files and let the compiler
to decide what DW_AT_name must contain. Particularly,
the compiler fills this filed by an absolute path to
a .S file because only absolute paths are used in
toolchain's build process.

Signed-off-by: Yuriy Kolerov <kolerov93@gmail.com>
2024-05-22 14:25:21 -04:00
Anton Kolesov
06537f05d4 ARC: Use new definitions for optional ARC CPU features
GCC for ARC has been updated to provide consistent naming of preprocessor
definitions for different optional architecture features:

    * __ARC_BARREL_SHIFTER__ instead of __Xbarrel_shifter for
      -mbarrel-shifter
    * __ARC_LL64__ instead of __LL64__ for -mll64
    * __ARCEM__ instead of __EM__ for -mcpu=arcem
    * __ARCHS__ instead of __HS__ for -mcpu=archs
    * etc (not used in newlib)

This patch updates assembly routines for ARC to use new definitions instead
of a deprecated ones. To ensure compatibility with older compiler new
definitions are also defined in asm.h if needed, based on deprecated
preprocessor definitions.

*** newlib/ChangeLog ***
2015-12-15  Anton Kolesov  <Anton.Kolesov@synopsys.com>

	* libc/machine/arc/asm.h: Define new GCC definition for old compiler.
	* libc/machine/arc/memcmp-bs-norm.S: Use new GCC defines to detect
	  processor features.
	* libc/machine/arc/memcmp.S: Likewise.
	* libc/machine/arc/memcpy-archs.S: Likewise.
	* libc/machine/arc/memcpy-bs.S: Likewise.
	* libc/machine/arc/memcpy.S: Likewise.
	* libc/machine/arc/memset-archs.S: Likewise.
	* libc/machine/arc/memset-bs.S: Likewise.
	* libc/machine/arc/memset.S: Likewise.
	* libc/machine/arc/setjmp.S: Likewise.
	* libc/machine/arc/strchr-bs-norm.S: Likewise.
	* libc/machine/arc/strchr-bs.S: Likewise.
	* libc/machine/arc/strchr.S: Likewise.
	* libc/machine/arc/strcmp-archs.S: Likewise.
	* libc/machine/arc/strcmp.S: Likewise.
	* libc/machine/arc/strcpy-bs-arc600.S: Likewise.
	* libc/machine/arc/strcpy-bs.S: Likewise.
	* libc/machine/arc/strcpy.S: Likewise.
	* libc/machine/arc/strlen-bs-norm.S: Likewise.
	* libc/machine/arc/strlen-bs.S: Likewise.
	* libc/machine/arc/strlen.S: Likewise.
	* libc/machine/arc/strncpy-bs.S: Likewise.
	* libc/machine/arc/strncpy.S: Likewise.

Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
2015-12-17 22:48:16 +01:00
Anton Kolesov
c0a99f0293 Add support for ARC to newlib
newlib/ChangeLog:
2015-11-12  Anton Kolesov  <Anton.Kolesov@synopsys.com>

	* configure.host: Add ARC support.
	* libc/include/machine/setjmp.h: Likewise.
	* libc/machine/configure: Likewise.
	* libc/machine/configure.in: Likewise.
	* libc/machine/arc/Makefile.am: Likewise.
	* libc/machine/arc/Makefile.in: Likewise.
	* libc/machine/arc/aclocal.m4: Likewise.
	* libc/machine/arc/asm.h: Likewise.
	* libc/machine/arc/configure: Likewise.
	* libc/machine/arc/configure.in: Likewise.
	* libc/machine/arc/memcmp-bs-norm.S: Likewise.
	* libc/machine/arc/memcmp-stub.c: Likewise.
	* libc/machine/arc/memcmp.S: Likewise.
	* libc/machine/arc/memcpy-archs.S: Likewise.
	* libc/machine/arc/memcpy-bs.S: Likewise.
	* libc/machine/arc/memcpy-stub.c: Likewise.
	* libc/machine/arc/memcpy.S: Likewise.
	* libc/machine/arc/memset-archs.S: Likewise.
	* libc/machine/arc/memset-bs.S: Likewise.
	* libc/machine/arc/memset-stub.c: Likewise.
	* libc/machine/arc/memset.S: Likewise.
	* libc/machine/arc/setjmp.S: Likewise.
	* libc/machine/arc/strchr-bs-norm.S: Likewise.
	* libc/machine/arc/strchr-bs.S: Likewise.
	* libc/machine/arc/strchr-stub.c: Likewise.
	* libc/machine/arc/strchr.S: Likewise.
	* libc/machine/arc/strcmp-archs.S: Likewise.
	* libc/machine/arc/strcmp-stub.c: Likewise.
	* libc/machine/arc/strcmp.S: Likewise.
	* libc/machine/arc/strcpy-bs-arc600.S: Likewise.
	* libc/machine/arc/strcpy-bs.S: Likewise.
	* libc/machine/arc/strcpy-stub.c: Likewise.
	* libc/machine/arc/strcpy.S: Likewise.
	* libc/machine/arc/strlen-bs-norm.S: Likewise.
	* libc/machine/arc/strlen-bs.S: Likewise.
	* libc/machine/arc/strlen-stub.c: Likewise.
	* libc/machine/arc/strlen.S: Likewise.
	* libc/machine/arc/strncpy-bs.S: Likewise.
	* libc/machine/arc/strncpy-stub.c: Likewise.
	* libc/machine/arc/strncpy.S: Likewise.
2015-11-12 14:14:17 +01:00