| History log of /src/sys/arch/arm/include/mcontext.h |
| Revision | | Date | Author | Comments |
| 1.27 |
| 30-Nov-2024 |
christos | Create a new header lwp_private.h to contain _lwp_getprivate_fast,
_lwp_gettcb_fast, _lwp_settcb and remove them from mcontext.h, so that:
1. we don't need special hacks to hide them
2. we can include <lwp.h> where needed to get the necessary prototypes
without redefining them locally.
|
| 1.26 |
| 04-Nov-2024 |
christos | Undo previous lwp.h change.
|
| 1.25 |
| 03-Nov-2024 |
christos | Split __lwp_getprivate_fast and __lwp_*tcb from mcontext.h into a separate
lwp.h file.
|
| 1.24 |
| 18-May-2024 |
thorpej | branches: 1.24.2;
Clean up the <sys/ucontext.h> <-> <machine/mcontext.h> interface up
a little:
- Define _UC_MD_BIT* constants for the available machine-dependent bits,
and use those constants to define the machine-dependent bits as well
as the machine-independent bits that have machine-dependent values.
- Explicitly generate an error if _UC_TLSBASE, _UC_SETSTACK, or
_UC_CLRSTACK are not defined by <machine/mcontext.h>.
|
| 1.23 |
| 06-Oct-2021 |
skrll | More trailing whitespace
|
| 1.22 |
| 22-Sep-2021 |
ryo | fix typo in comment
|
| 1.21 |
| 12-Oct-2018 |
ryo | add initial support of COMPAT_NETBSD32 on AArch64.
arm ELF32 EABI binaries could be execute in AArch32 state on AArch64. A32 THUMB mode is not supported yet.
|
| 1.20 |
| 01-Apr-2018 |
ryo | branches: 1.20.2;
Add initial support for ARMv8 (AARCH64) (by nisimura@ and ryo@)
- sys/arch/evbarm64 is gone and integrated into sys/arch/evbarm. (by skrll@)
- add support fdt. evbarm/conf/GENERIC64 fdt (bcm2837,sunxi,tegra) based generic 64bit kernel config. (by skrll@, jmcneill@)
|
| 1.19 |
| 15-Feb-2018 |
kamil | branches: 1.19.2;
Introduce _UC_MACHINE_FP() as a macro
_UC_MACHINE_FP() is a helper macro to extract from mcontext a frame pointer.
Don't rely on this interface as a compiler might strip frame pointer or
optimize it making this interface unreliable.
For hppa assume a small frame context, for larger frames FP might be located
in a different register (4 instead of 3).
For ia64 there is no strict frame pointer, and registers might rotate.
Reuse 79 following:
./gcc/config/ia64/ia64.h:#define HARD_FRAME_POINTER_REGNUM LOC_REG (79)
Once ia64 will mature, this should be revisited.
A macro can encapsulate a real function for extracting Frame Pointer on
more complex CPUs / ABIs.
For the remaining CPUs, reuse standard register as defined in appropriate ABI.
The direct users of this macro are LLVM and GCC with Sanitizers.
Proposed on tech-userlevel@.
Sponsored by <The NetBSD Foundation>
|
| 1.18 |
| 24-Mar-2015 |
matt | branches: 1.18.10;
Preserve/restore user r/w tpid in mcontext.
|
| 1.17 |
| 18-Mar-2015 |
joerg | Ensure _lwp_setcontext gets consistent language binding.
|
| 1.16 |
| 15-Aug-2013 |
matt | branches: 1.16.4; 1.16.6;
If compiling for Thumb1, make __lwp_getprivate_fast call __aeabi_read_tp.
|
| 1.15 |
| 08-Dec-2012 |
matt | branches: 1.15.2;
Define the correct __UCONTEXT_SIZE for EABI.
|
| 1.14 |
| 08-Dec-2012 |
christos | need stdint.h for uint64_t and it is messy to do it open-coded.
|
| 1.13 |
| 07-Dec-2012 |
matt | Extend vfpreg to include all 32 64-bit FP registers.
For __ARM_EABI__, define __vfp_fstmx to have space for all 32 32-bit
FP registers (It's a newly supported ABI so we can "break" binary
compatibility.
|
| 1.12 |
| 05-Dec-2012 |
matt | ARMFPE hasn't compiled since NetBSD 4. Remove it.
Complete support for FPU_VFP.
fpregs now contains vfpreg.
XXX vfpreg only has space for 16 64-bit FP registers though VFPv3 and later
have 32 64-bit FP registers.
|
| 1.11 |
| 03-Aug-2012 |
matt | branches: 1.11.2;
COMPAT_NETBSD32 support for ARM. Which is strange since ARM is already
32-bits. But the newer ARM ABI AAPCS changes the alignment of 64-bit
fields so structures need to copied in and out to deal with the alignment
change. This is a kludge but makes debugging of AAPCS support much easier.
|
| 1.10 |
| 13-Feb-2012 |
matt | Modify __lwp_getprivate_fast to call _lwp_getprivate if the mrc instruction
returns 0 (some ARM cores are broken and don't raise an undefined exception
when encountering an unknown or privileged mrc instruction in user mode).
|
| 1.9 |
| 07-Apr-2011 |
matt | branches: 1.9.4; 1.9.8;
Add __lwp_getprivate_fast
|
| 1.8 |
| 24-Feb-2011 |
joerg | Allow storing and receiving the LWP private pointer via ucontext_t
on all platforms except VAX and IA64. Add fast access via register for
AMD64, i386 and SH3 ports. Use this fast access in libpthread to replace
the stack based pthread_self(). Implement skeleton support for Alpha,
HPPA, PowerPC, SPARC and SPARC64, but leave it disabled.
Ports that support this feature provide __HAVE____LWP_GETPRIVATE_FAST in
machine/types.h and a corresponding __lwp_getprivate_fast in
machine/mcontext.h.
This material is based upon work partially supported by
The NetBSD Foundation under a contract with Joerg Sonnenberger.
|
| 1.7 |
| 23-Feb-2011 |
joerg | Fix ucontext32_t on AMD64. Add optional compile time assertions for
ucontext_t and ucontext32_t to ensure that they don't change.
Provide the constants for AMD64, ARM, i386, and M68K.
|
| 1.6 |
| 28-Apr-2008 |
martin | branches: 1.6.22; 1.6.28; 1.6.30;
Remove clause 3 and 4 from TNF licenses
|
| 1.5 |
| 11-Dec-2005 |
christos | branches: 1.5.76; 1.5.78; 1.5.80;
merge ktrace-lwp.
|
| 1.4 |
| 08-Oct-2003 |
thorpej | Add some accessor macros for the ucontext:
* _UC_MACHINE_PC() - access the program counter
* _UC_MACHINE_INTRV() - access the integer return value register
* _UC_MACHINE_SET_PC() - set the program counter (this requires
special handling on some platforms).
|
| 1.3 |
| 05-Oct-2003 |
matt | Add SA_SIGINFO support for ARM (from Chris Gilbert).
|
| 1.2 |
| 17-Jan-2003 |
thorpej | branches: 1.2.2;
Merge the nathanw_sa branch.
|
| 1.1 |
| 14-Nov-2001 |
thorpej | branches: 1.1.2;
file mcontext.h was initially added on branch nathanw_sa.
|
| 1.1.2.3 |
| 17-Dec-2002 |
thorpej | Add VFP context to mcontext_t.
|
| 1.1.2.2 |
| 28-Dec-2001 |
nathanw | Add a macro, _UC_MACHINE_SP(), to fetch the user stack pointer from
a ucontext_t.
|
| 1.1.2.1 |
| 14-Nov-2001 |
thorpej | ARM-specific mcontext support. From Klaus Klein <kleink@netbsd.org>.
|
| 1.2.2.3 |
| 21-Sep-2004 |
skrll | Fix the sync with head I botched.
|
| 1.2.2.2 |
| 18-Sep-2004 |
skrll | Sync with HEAD.
|
| 1.2.2.1 |
| 03-Aug-2004 |
skrll | Sync with HEAD
|
| 1.5.80.1 |
| 16-May-2008 |
yamt | sync with head.
|
| 1.5.78.1 |
| 18-May-2008 |
yamt | sync with head.
|
| 1.5.76.1 |
| 02-Jun-2008 |
mjf | Sync with HEAD.
|
| 1.6.30.1 |
| 05-Mar-2011 |
bouyer | Sync with HEAD
|
| 1.6.28.1 |
| 06-Jun-2011 |
jruoho | Sync with HEAD.
|
| 1.6.22.2 |
| 21-Apr-2011 |
rmind | sync with head
|
| 1.6.22.1 |
| 05-Mar-2011 |
rmind | sync with head
|
| 1.9.8.1 |
| 18-Feb-2012 |
mrg | merge to -current.
|
| 1.9.4.4 |
| 22-May-2014 |
yamt | sync with head.
for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.
this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
|
| 1.9.4.3 |
| 16-Jan-2013 |
yamt | sync with (a bit old) head
|
| 1.9.4.2 |
| 30-Oct-2012 |
yamt | sync with head
|
| 1.9.4.1 |
| 17-Apr-2012 |
yamt | sync with head
|
| 1.11.2.3 |
| 03-Dec-2017 |
jdolecek | update from HEAD
|
| 1.11.2.2 |
| 20-Aug-2014 |
tls | Rebase to HEAD as of a few days ago.
|
| 1.11.2.1 |
| 25-Feb-2013 |
tls | resync with head
|
| 1.15.2.1 |
| 28-Aug-2013 |
rmind | sync with head
|
| 1.16.6.1 |
| 06-Apr-2015 |
skrll | Sync with HEAD
|
| 1.16.4.1 |
| 21-Mar-2015 |
snj | Pull up following revision(s) (requested by joerg in ticket #633):
sys/arch/arm/include/mcontext.h: revision 1.17
Ensure _lwp_setcontext gets consistent language binding.
|
| 1.18.10.3 |
| 21-Mar-2018 |
martin | Pull up the following, requested by kamil in ticket #552:
external/gpl3/gcc{.old}/dist/libsanitizer/asan/asan_linux.cc 1.4
sys/arch/aarch64/include/mcontext.h 1.2
sys/arch/alpha/include/mcontext.h 1.9
sys/arch/amd64/include/mcontext.h 1.19
sys/arch/arm/include/mcontext.h 1.19
sys/arch/hppa/include/mcontext.h 1.9
sys/arch/i386/include/mcontext.h 1.14
sys/arch/ia64/include/mcontext.h 1.6
sys/arch/m68k/include/mcontext.h 1.10
sys/arch/mips/include/mcontext.h 1.22
sys/arch/or1k/include/mcontext.h 1.2
sys/arch/powerpc/include/mcontext.h 1.18
sys/arch/riscv/include/mcontext.h 1.5
sys/arch/sh3/include/mcontext.h 1.11
sys/arch/sparc/include/mcontext.h 1.14-1.17
sys/arch/sparc64/include/mcontext.h 1.10
sys/arch/vax/include/mcontext.h 1.9
tests/lib/libc/sys/Makefile 1.50
tests/lib/libc/sys/t_ucontext.c 1.2-1.5
sys/arch/hppa/include/mcontext.h 1.10
sys/arch/ia64/include/mcontext.h 1.7
- Introduce _UC_MACHINE_FP(). _UC_MACHINE_FP() is a helper
macro to extract from mcontext a frame pointer.
- Add new tests in lib/libc/sys/t_ucontext:
* ucontext_sp (testing _UC_MACHINE_SP)
* ucontext_fp (testing _UC_MACHINE_FP)
* ucontext_pc (testing _UC_MACHINE_PC)
* ucontext_intrv (testing _UC_MACHINE_INTRV)
Add a dummy implementation of _UC_MACHINE_INTRV() for ia64.
Implement _UC_MACHINE_INTRV() for hppa.
Make the t_ucontext.c test more portable.
We now have _UC_MACHINE_FP.
|
| 1.18.10.2 |
| 26-Feb-2018 |
snj | revert ticket 552, which broke the build
|
| 1.18.10.1 |
| 25-Feb-2018 |
snj | Pull up following revision(s) (requested by kamil in ticket #552):
sys/arch/aarch64/include/mcontext.h: 1.2
sys/arch/alpha/include/mcontext.h: 1.9
sys/arch/amd64/include/mcontext.h: 1.19
sys/arch/arm/include/mcontext.h: 1.19
sys/arch/hppa/include/mcontext.h: 1.9
sys/arch/i386/include/mcontext.h: 1.14
sys/arch/ia64/include/mcontext.h: 1.6
sys/arch/m68k/include/mcontext.h: 1.10
sys/arch/mips/include/mcontext.h: 1.22
sys/arch/or1k/include/mcontext.h: 1.2
sys/arch/powerpc/include/mcontext.h: 1.18
sys/arch/riscv/include/mcontext.h: 1.5
sys/arch/sh3/include/mcontext.h: 1.11
sys/arch/sparc/include/mcontext.h: 1.14-1.17
sys/arch/sparc64/include/mcontext.h: 1.10
sys/arch/vax/include/mcontext.h: 1.9
tests/lib/libc/sys/Makefile: 1.50
tests/lib/libc/sys/t_ucontext.c: 1.2
Introduce _UC_MACHINE_FP() as a macro
_UC_MACHINE_FP() is a helper macro to extract from mcontext a frame pointer.
Don't rely on this interface as a compiler might strip frame pointer or
optimize it making this interface unreliable.
For hppa assume a small frame context, for larger frames FP might be located
in a different register (4 instead of 3).
For ia64 there is no strict frame pointer, and registers might rotate.
Reuse 79 following:
./gcc/config/ia64/ia64.h:#define HARD_FRAME_POINTER_REGNUM LOC_REG (79)
Once ia64 will mature, this should be revisited.
A macro can encapsulate a real function for extracting Frame Pointer on
more complex CPUs / ABIs.
For the remaining CPUs, reuse standard register as defined in appropriate ABI.
The direct users of this macro are LLVM and GCC with Sanitizers.
Proposed on tech-userlevel@.
Sponsored by <The NetBSD Foundation>
--
Improve _UC_MACHINE_FP() for SPARC/SPARC64
Introduce a static inline function _uc_machine_fp() that contains improved
caluclation of a frame pointer.
Algorithm:
uptr *stk_ptr;
# if defined (__arch64__)
stk_ptr = (uptr *) (*sp + 2047);
# else
stk_ptr = (uptr *) *sp;
# endif
*bp = stk_ptr[15];
Noted by <mrg>
--
Make _UC_MACHINE_FP() compile again and fix it so that it does not add
the offset twice.
--
fix _UC_MACHINE32_FP() -- use 32 bit pointer value so that [15] is
the right offset. do this by using __greg32_t, which is only in
the sparc64 version, and these are only useful there, so move them.
--
Add new tests in lib/libc/sys/t_ucontext
New tests:
- ucontext_sp
- ucontext_fp
- ucontext_pc
- ucontext_intrv
They test respectively:
- _UC_MACHINE_SP
- _UC_MACHINE_FP
- _UC_MACHINE_PC
- _UC_MACHINE_INTRV
These tests attempt to access and print the values from ucontext, without
interpreting the values.
This is a follow up of the _UC_MACHINE_FP() introduction.
These tests use PRIxREGISTER, and require to be built with -D_KERNTYPES.
Sponsored by <The NetBSD Foundation>
|
| 1.19.2.2 |
| 20-Oct-2018 |
pgoyette | Sync with head
|
| 1.19.2.1 |
| 07-Apr-2018 |
pgoyette | Sync with HEAD. 77 conflicts resolved - all of them $NetBSD$
|
| 1.20.2.1 |
| 10-Jun-2019 |
christos | Sync with HEAD
|
| 1.24.2.1 |
| 02-Aug-2025 |
perseant | Sync with HEAD
|
