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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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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Gregory Nutt
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b05f29dbfe
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I love/hate conditional compilation
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2014-09-03 11:43:23 -06:00 |
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Gregory Nutt
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1a4f8914c5
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Add support for delivery of use-mode signals in the kernel build.
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2014-09-02 15:58:14 -06:00 |
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Gregory Nutt
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b4438e44c5
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Restructuring of build to allow use of use-space allocators by kernel logic in the kernel build.
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2014-09-02 11:22:09 -06:00 |
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Gregory Nutt
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b085e084f4
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Space at the beginning of the process data space is now reserved for user heap management structures. In the kernel build mode, these heap structures are shared between the kernel and use code in order to allocate user-specific data.
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2014-09-02 11:21:23 -06:00 |
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Gregory Nutt
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a5af2568eb
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sbrk() need to initialized the memory manager on the first call
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2014-09-02 08:05:11 -06:00 |
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Gregory Nutt
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64ab35b399
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There used to be two ways to pass parameters to new tasks, depending upon the configuration: Either (1) argv[] as created as an array with each string strdup'ed. Or (1) argv[] array and strings were created on the stack before the new task was started. Now, there is only one way, way (1). Way (2) might be slightly more compact, but this is not worth carry the complexity of two different ways of doing the same thing.
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2014-09-01 15:39:34 -06:00 |
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Gregory Nutt
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45c31d633c
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Completes the implementation of sbrk() (untested)
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2014-09-01 10:46:51 -06:00 |
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Gregory Nutt
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a33c0533f4
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ARMv7 address environment: Static functions not marked static
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2014-09-01 08:49:08 -06:00 |
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Gregory Nutt
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edf5b0bccc
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Fix common heap allocation logic, taking into account the kernel build requirements
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2014-09-01 07:57:54 -06:00 |
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Gregory Nutt
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205260d5e2
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Reanem kzalloc to kmm_zalloc for consistency
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2014-08-31 17:34:44 -06:00 |
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Gregory Nutt
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1780810d3d
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Rename kmalloc to kmm_malloc for consistency
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2014-08-31 17:26:36 -06:00 |
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Gregory Nutt
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54fa3b0b59
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Rename kfree to kmm_free for consistency with other naming conventions
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2014-08-31 17:04:02 -06:00 |
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Gregory Nutt
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9aca0c1c84
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Rename kumalloc to kumm_malloc and kuzalloc to kumm_zalloc for consistency with other naming
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2014-08-31 16:24:24 -06:00 |
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Gregory Nutt
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9ad7dae4c1
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Rename kufree to kumm_free for consistency with other naming
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2014-08-31 16:15:11 -06:00 |
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Gregory Nutt
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5a488475a8
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Rename kmemalign to kmm_memalign for consitency with other naming
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2014-08-31 14:57:31 -06:00 |
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Gregory Nutt
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2904fb0420
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Clean up some kernel build heap allocation issues. The Cortex-A kernel build now compiles without errors (but cannot link until brk() and sbrk() are implemented).
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2014-08-31 12:50:05 -06:00 |
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Gregory Nutt
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3c1a70c9dc
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Remove CONFIG_MM_MULTIHEAP. Non-multiheap operation is no longer supported
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2014-08-31 10:54:55 -06:00 |
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Gregory Nutt
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67a54fd52e
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ARMv7-A: A little more logic and a few more fixes for Cortex-A kernel build
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2014-08-31 07:15:46 -06:00 |
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Gregory Nutt
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0f5dc2fc65
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Various changes/fixes to get configs/stm32f4discovery/kostest working after the big configuration renaming (and after a long period of bit rot)
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2014-08-29 16:23:46 -06:00 |
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Gregory Nutt
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faf16f229c
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Some initial clean-up in verifying the CONFIG_BUILD_PROTECTED configuration change
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2014-08-29 15:07:35 -06:00 |
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Gregory Nutt
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e3ff0689bb
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Rename CONFIG_NUTTX_KERNEL to CONFIG_BUILD_PROTECTED; Partially integrate new CONFIG_BUILD_KERNEL
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2014-08-29 14:47:22 -06:00 |
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Gregory Nutt
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de3d353a8e
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Fix hard coded values in dispatch_sysall inline assembly. Back out/corect part of last change; that was going the wrong direction.
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2014-08-29 10:10:47 -06:00 |
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Gregory Nutt
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cb5bec2e34
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Fix a cloned typo
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2014-08-29 10:09:07 -06:00 |
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Gregory Nutt
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c499297899
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Fix ARM7/9 and Cortex-A SYSCALLs: For threads in SVC mode, the SVC instructions clobbers R14. This must be taken account in the inline assembly
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2014-08-29 10:07:11 -06:00 |
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