Gregory Nutt
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709a801e7d
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Fix missing closing quotation mark
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2014-09-19 13:00:42 -06:00 |
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Gregory Nutt
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ef8a4668d7
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Some compiler errors that I added to Ken's code. From Ken Pettit
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2014-09-19 10:58:32 -06:00 |
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Gregory Nutt
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34e0a71082
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Emulated SPI FLASH driver for the sim target from Ken Pettit
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2014-09-19 10:27:18 -06:00 |
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Gregory Nutt
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942aaf6c31
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SAMA5D4-EK/nsh: WM8904 support enabled; README updated
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2014-09-18 14:29:20 -06:00 |
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Gregory Nutt
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d7ae119684
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Ooops... a file that I forgot to add yesterday
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2014-09-17 09:52:07 -06:00 |
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Gregory Nutt
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b37c0a832a
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Fixes to avoid some hang conditions using STM32 CAN
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2014-09-17 08:35:03 -06:00 |
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Gregory Nutt
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82381dbdc6
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Only SAM4 family has RTTDIS bit in the MR register. SourceForge bug #33 from Fabien Comte
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2014-09-17 07:42:12 -06:00 |
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Gregory Nutt
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311a88e819
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Add a sharable version of arm_virtpgaddr()
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2014-09-16 16:49:44 -06:00 |
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Gregory Nutt
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925fc9ad81
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First round of changes to get the ELF configuration building again
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2014-09-16 15:37:05 -06:00 |
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Gregory Nutt
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2defa2d45c
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These files were deleted and moved to a different location (see previos commit)
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2014-09-16 13:36:51 -06:00 |
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Gregory Nutt
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af2efda031
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remove tailing blank line
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2014-09-16 13:36:14 -06:00 |
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Gregory Nutt
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d4d1534b5a
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Move common/up_signal_dispatch.c to armv6-m, armv7-m, and armv7-a. The armv7-a version needs to be different to handle the case where we are dispatch kernel mode signals when running under a user mode group
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2014-09-16 13:35:29 -06:00 |
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Gregory Nutt
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058229b626
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Correct stack handling is signal deliver to user processes
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2014-09-16 13:33:13 -06:00 |
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Gregory Nutt
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0bedf06b49
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Move some share-able logic from sama5/sam_pgalloc.c to armv7-a/arm_physpgaddr.c
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2014-09-16 13:31:48 -06:00 |
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Gregory Nutt
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9a49f05087
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Move some share-able logic from sama5/sam_pgalloc.c to armv7-a/arm_physpgaddr.c
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2014-09-16 13:31:24 -06:00 |
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Gregory Nutt
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b627c70492
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Move some share-able logic from sama5/sam_pgalloc.c to armv7-a/arm_physpgaddr.c
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2014-09-16 13:29:43 -06:00 |
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Gregory Nutt
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731de13347
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Partial fix to an cache cleaning problem
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2014-09-15 16:04:42 -06:00 |
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Gregory Nutt
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ff97fa2114
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Fix an error in a debug statement
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2014-09-15 15:15:57 -06:00 |
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Gregory Nutt
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2711592e52
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Eliminate a bug introduced in last checking
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2014-09-15 15:10:50 -06:00 |
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Gregory Nutt
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8c3528183b
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ARMv7-A: Improvements to assertion output for kernel mode
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2014-09-15 15:03:55 -06:00 |
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Gregory Nutt
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5e4c77245f
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If we are configured to use a kernel stack while in SYSCALL handling, then we need to switch back to the user stack to deliver a signal
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2014-09-15 11:38:48 -06:00 |
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Gregory Nutt
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7ac0a7a4ec
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Fix a typo in system call when fetching parameter from the stack: regs[REG_PC]+4 is the address, not regs[REG_PC+4]
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2014-09-15 10:55:10 -06:00 |
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Gregory Nutt
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3649dab9bd
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Initial integration of kernel stack (does not work)
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2014-09-14 11:19:34 -06:00 |
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Gregory Nutt
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de4956a2cd
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Add the initial implementation of the process kernel stack logic. Not yet integrated into the main OS logic nor tested.
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2014-09-14 09:53:54 -06:00 |
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Gregory Nutt
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b255883b0a
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Rename everything associated with the dynamic process stack to ustack to make room in the name space for a kstack
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2014-09-14 09:10:09 -06:00 |
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Gregory Nutt
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beb3238f36
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Update README, TODO, and make some unfinished configuration options dependent on EXPERIMENTAL
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2014-09-13 15:45:26 -06:00 |
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Gregory Nutt
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6e48516a31
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Add logic need to manage a virtualized stack. Not yet incorporated into base OS logic.
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2014-09-13 13:45:35 -06:00 |
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Gregory Nutt
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f965ca1fed
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Move static helper routines from arm_addrenv.c and may them global so that they can be shared both forthcoming stack address environment logic.
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2014-09-13 13:17:44 -06:00 |
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Gregory Nutt
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ed9fced470
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Add a configuration option for dynamic stack management
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2014-09-13 12:25:32 -06:00 |
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Gregory Nutt
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e411e8aa3f
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Comsetic updates to comments, debug output
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2014-09-12 10:31:58 -06:00 |
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Gregory Nutt
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f8170550e1
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ARMv7-A: Modify up_fullcontextrestore() for CONFIG_BUILD_KERNEL. It changed CPSR while in kernel. That will crash is the new CPSR is user mode while executing in kernel space. Fixed by adding a SYS_context_restore system call. There is an alternative, simpler modification to up_fullcontextrestore() that could have been done: It might have been possible to use the SPSR instead of the CPRSR and then do an exception return from up_fullcontextrestore(). That would be more efficient, but I never tried it.
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2014-09-12 08:04:27 -06:00 |
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Gregory Nutt
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814ac67f62
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Fix logic for returning from exceptions to user-mode contexts
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2014-09-11 18:43:30 -06:00 |
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Gregory Nutt
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bb7b5f3490
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All tasks, even user mode tasks, must start in supervisor mode until they get past the start-up trampoline
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2014-09-11 18:42:52 -06:00 |
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Gregory Nutt
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67838239c4
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Update some comments/function headers
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2014-09-11 17:15:26 -06:00 |
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Gregory Nutt
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8f2e9bcfdf
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Tighten up some ARM assembly language. You can always do better
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2014-09-11 15:12:08 -06:00 |
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Gregory Nutt
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57d78ddd93
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ARMv7-A: Exception register save/restore needs to work a little differently if we support user mode processes
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2014-09-11 14:34:10 -06:00 |
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Gregory Nutt
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17e798993d
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Trivial kernel build related fixes for consistency
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2014-09-11 12:35:23 -06:00 |
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Gregory Nutt
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0fc55d042f
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Misc fixes to repair some of the breakage to the SAMA5D4-EK elf configuration caused by changes for the knsh configuration
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2014-09-11 10:31:12 -06:00 |
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Gregory Nutt
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8d9df11ca2
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Fix for UART7 and UART8 on STM32 clock enable from Aton
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2014-09-11 10:27:40 -06:00 |
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Gregory Nutt
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205c23b9d6
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Add logic to initialize the per-process user heap when each user process is started
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2014-09-10 15:55:36 -06:00 |
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Gregory Nutt
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9a5640b542
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SAMA5D4-EK: These configurations now use the fixed DRAM mapping for manipulating the page memory pool.
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2014-09-10 08:44:09 -06:00 |
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Gregory Nutt
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df4682fd1f
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Add configuration to use the fixed DRAM mapping for the page pool (if available) instead of remapping dynamically to access L2 page tables and page data. Also, add logic in address environment creation to initialize the shared data at the beginning of the .bss/.data process memory region.
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2014-09-10 08:41:01 -06:00 |
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Gregory Nutt
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1f2adbd4c3
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pcDuino: Several fixes so that it still builds after other Cortex-A changes.
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2014-09-10 06:24:39 -06:00 |
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Gregory Nutt
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c458e72b70
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ELF relocations. Some relocation types do not have a named symbol associated with them. The design did not account for that case
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2014-09-09 16:52:51 -06:00 |
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Gregory Nutt
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e57d2e5460
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SAM3X/Arduino Due: Fix typo in sam3x_periphclks.h; add SCLK definitions to board.h header file. From Fabien Comte
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2014-09-08 06:14:59 -06:00 |
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Gregory Nutt
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99f191c4a2
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SAMA5D4-EK: In kernel build with address environment, need logic to map user virtual addresses to physical addresses, and vice versa
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2014-09-07 19:25:30 -06:00 |
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Gregory Nutt
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a8c9c6723e
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Fix loop counter... was overrunning a table on larger ELF files
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2014-09-07 14:42:04 -06:00 |
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Gregory Nutt
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089a49d869
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Correct size comparison (pages vs. sections)
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2014-09-07 13:47:01 -06:00 |
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Gregory Nutt
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56dc80cf59
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The 'make export' target needs to bundle up the user C startup file (crt0), not the kernel head object
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2014-09-04 13:31:34 -06:00 |
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Gregory Nutt
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47d55c28dc
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Mostly cosmetic changes
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2014-09-04 10:28:38 -06:00 |
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