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Diffstat (limited to 'gdb/doc/gdb.texinfo')
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1 files changed, 47 insertions, 0 deletions
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index 062f01d5ff2..da3ed28dfea 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -546,6 +546,11 @@ was developed by SRI International and the University of Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme. +The original port to the OpenRISC 1000 is believed to be due to +Alessandro Forin and Per Bothner. More recent ports have been the work +of Jeremy Bennett, Franck Jullien, Stefan Wallentowitz and +Stafford Horne. + @node Sample Session @chapter A Sample @value{GDBN} Session @@ -22442,6 +22447,7 @@ acceptable commands. * M68K:: Motorola M68K * MicroBlaze:: Xilinx MicroBlaze * MIPS Embedded:: MIPS Embedded +* OpenRISC 1000:: OpenRISC 1000 (or1k) * PowerPC Embedded:: PowerPC Embedded * AVR:: Atmel AVR * CRIS:: CRIS @@ -22651,6 +22657,38 @@ As usual, you can inquire about the @code{mipsfpu} variable with @samp{show mipsfpu}. @end table +@node OpenRISC 1000 +@subsection OpenRISC 1000 +@cindex OpenRISC 1000 + +@noindent +The OpenRISC 1000 provides a free RISC instruction set architecture. It is +mainly provided as a soft-core which can run on Xilinx, Altera and other +FPGA's. + +@value{GDBN} for OpenRISC supports the below commands when connecting to +a target: + +@table @code + +@kindex target sim +@item target sim + +Runs the builtin CPU simulator which can run very basic +programs but does not support most hardware functions like MMU. +For more complex use cases the user is advised to run an external +target, and connect using @samp{target remote}. + +Example: @code{target sim} + +@item set debug or1k +Toggle whether to display OpenRISC-specific debugging messages from the +OpenRISC target support subsystem. + +@item show debug or1k +Show whether OpenRISC-specific debugging messages are enabled. +@end table + @node PowerPC Embedded @subsection PowerPC Embedded @@ -41739,6 +41777,7 @@ registers using the capitalization used in the description. * M68K Features:: * NDS32 Features:: * Nios II Features:: +* OpenRISC 1000 Features:: * PowerPC Features:: * S/390 and System z Features:: * Sparc Features:: @@ -42025,6 +42064,14 @@ targets. It should contain the 32 core registers (@samp{zero}, @samp{pc}, and the 16 control registers (@samp{status} through @samp{mpuacc}). +@node OpenRISC 1000 Features +@subsection Openrisc 1000 Features +@cindex target descriptions, OpenRISC 1000 features + +The @samp{org.gnu.gdb.or1k.group0} feature is required for OpenRISC 1000 +targets. It should contain the 32 general purpose registers (@samp{r0} +through @samp{r31}), @samp{ppc}, @samp{npc} and @samp{sr}. + @node PowerPC Features @subsection PowerPC Features @cindex target descriptions, PowerPC features |