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| author | Gregory Nutt <gnutt@nuttx.org> | 2014-08-28 13:21:36 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2014-08-28 13:21:36 -0600 |
| commit | 31078965acba45d24fa74ed2e306a629dbcfb410 (patch) | |
| tree | 63d97e93d68d6b69f6ea34d9fd521d1e2b227fdd /nuttx/arch/arm/src/armv6-m | |
| parent | 4c6a994840d6e41fe259d3277ee7eed206fd3b73 (diff) | |
| download | nuttx-31078965acba45d24fa74ed2e306a629dbcfb410.tar.gz nuttx-31078965acba45d24fa74ed2e306a629dbcfb410.tar.bz2 nuttx-31078965acba45d24fa74ed2e306a629dbcfb410.zip | |
Add an ARMv7-A system call definition header file
Diffstat (limited to 'nuttx/arch/arm/src/armv6-m')
| -rw-r--r-- | nuttx/arch/arm/src/armv6-m/svcall.h | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/nuttx/arch/arm/src/armv6-m/svcall.h b/nuttx/arch/arm/src/armv6-m/svcall.h index f5511c525..8afd1a981 100644 --- a/nuttx/arch/arm/src/armv6-m/svcall.h +++ b/nuttx/arch/arm/src/armv6-m/svcall.h @@ -52,7 +52,8 @@ /* Configuration ********************************************************************/ /* This logic uses three system calls {0,1,2} for context switching and one for the - * syscall return. The first four syscall values must be reserved. + * syscall return. So a minimum of four syscall values must be reserved. If + * CONFIG_NUTTX_KERNEL is defined, then four more syscall values must be reserved. */ #ifdef CONFIG_LIB_SYSCALL @@ -64,9 +65,9 @@ # endif # else # ifndef CONFIG_SYS_RESERVED -# error "CONFIG_SYS_RESERVED must be defined to have the value 3" -# elif CONFIG_SYS_RESERVED != 3 -# error "CONFIG_SYS_RESERVED must have the value 3" +# error "CONFIG_SYS_RESERVED must be defined to have the value 4" +# elif CONFIG_SYS_RESERVED != 4 +# error "CONFIG_SYS_RESERVED must have the value 4" # endif # endif #endif @@ -94,7 +95,7 @@ #define SYS_switch_context (2) -#ifdef CONFIG_NUTTX_KERNEL +#ifdef CONFIG_LIB_SYSCALL /* SYS call 3: * * void up_syscall_return(void); @@ -102,6 +103,7 @@ #define SYS_syscall_return (3) +#ifdef CONFIG_NUTTX_KERNEL /* SYS call 4: * * void up_task_start(main_t taskentry, int argc, FAR char *argv[]) @@ -132,7 +134,9 @@ */ #define SYS_signal_handler_return (7) -#endif + +#endif /* CONFIG_NUTTX_KERNEL */ +#endif /* CONFIG_LIB_SYSCALL */ /************************************************************************************ * Inline Functions |