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| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2009-10-10 21:24:15 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2009-10-10 21:24:15 +0000 |
| commit | 5b5dd1c8736322092154362df62a8179f5a4c770 (patch) | |
| tree | f7dd4ac10e1122cc0b253be7bcbb85833007ca50 /c | |
| parent | 2009-10-10 Joel Sherrill <joel.sherrill@oarcorp.com> (diff) | |
| download | rtems-5b5dd1c8736322092154362df62a8179f5a4c770.tar.bz2 | |
2009-10-10 Joel Sherrill <joel.sherrill@oarcorp.com>
* shared/bspgetworkarea.c: Add debug prints of memory information.
Diffstat (limited to 'c')
| -rw-r--r-- | c/src/lib/libbsp/sparc/ChangeLog | 4 | ||||
| -rw-r--r-- | c/src/lib/libbsp/sparc/shared/bspgetworkarea.c | 32 |
2 files changed, 36 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/ChangeLog b/c/src/lib/libbsp/sparc/ChangeLog index 2d901a8bd7..dee76a0f6c 100644 --- a/c/src/lib/libbsp/sparc/ChangeLog +++ b/c/src/lib/libbsp/sparc/ChangeLog @@ -1,3 +1,7 @@ +2009-10-10 Joel Sherrill <joel.sherrill@oarcorp.com> + + * shared/bspgetworkarea.c: Add debug prints of memory information. + 2009-09-29 Ralf Corsépius <ralf.corsepius@rtems.org> * shared/include/pci.h: Add prototypes for BusCountPCI(void), diff --git a/c/src/lib/libbsp/sparc/shared/bspgetworkarea.c b/c/src/lib/libbsp/sparc/shared/bspgetworkarea.c index 7b6cf76d7b..d4cd779267 100644 --- a/c/src/lib/libbsp/sparc/shared/bspgetworkarea.c +++ b/c/src/lib/libbsp/sparc/shared/bspgetworkarea.c @@ -12,8 +12,12 @@ * $Id$ */ +/* #define BSP_GET_WORK_AREA_DEBUG */ #include <bsp.h> #include <bsp/bootcard.h> +#ifdef BSP_GET_WORK_AREA_DEBUG + #include <rtems/bspIo.h> +#endif /* Tells us where to put the workspace in case remote debugger is present. */ extern uint32_t rdb_start; @@ -37,4 +41,32 @@ void bsp_get_work_area( *work_area_size = (void *)rdb_start - (void *)&end - STACK_SIZE; *heap_start = BSP_BOOTCARD_HEAP_USES_WORK_AREA; *heap_size = BSP_BOOTCARD_HEAP_SIZE_DEFAULT; + + /* + * The following may be helpful in debugging what goes wrong when + * you are allocating the Work Area in a new BSP. + */ + #ifdef BSP_GET_WORK_AREA_DEBUG + { + void *sp = __builtin_frame_address(0); + void *end = *work_area_start + *work_area_size; + printk( + "work_area_start = 0x%p\n" + "work_area_size = %d 0x%08x\n" + "end = 0x%p\n" + "heap_start = 0x%p\n" + "heap_size = %d\n" + "current stack pointer = 0x%p%s\n", + *work_area_start, + *work_area_size, /* decimal */ + *work_area_size, /* hexadecimal */ + end, + *heap_start, + *heap_size, + sp, + ((sp >= *work_area_start && sp <= end) ? " OVERLAPS!" : "") + ); + printk( "rdb_start = 0x%08x\n", rdb_start ); + } + #endif } |