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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4a04ea48e4
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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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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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9879f47bbb
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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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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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4f1ca4cbb7
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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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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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35a282bc30
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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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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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e2952e4088
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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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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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d14d3b29bb
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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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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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9aae0adffa
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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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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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949cc1b20c
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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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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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946b916f69
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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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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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16ddffc941
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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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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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ffff51c1b1
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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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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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9dbf99f38b
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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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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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d956936535
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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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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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5d4f336b1f
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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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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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f4bcb27962
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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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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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fe48417a96
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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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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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fba35f0c41
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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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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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6084fad7e0
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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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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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62e608be8c
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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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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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4821587509
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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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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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401b8543cd
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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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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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bd7f16d16a
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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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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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998c5ee0a9
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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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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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1f23ad9bad
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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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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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442d2adb7a
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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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