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| author | Nicolas Pitre <nico@fluxnic.net> | 2009-12-05 01:01:55 -0500 |
|---|---|---|
| committer | David Brownell <dbrownell@users.sourceforge.net> | 2009-12-04 23:07:10 -0800 |
| commit | ec8c3b5a678f3f236c3b574975eff6434e0aab60 (patch) | |
| tree | 28035f4937155f108c455e22ba8b9eb9c30d40f0 | |
| parent | e8599cc3d81c659c3b8fdf65177006689865d4f4 (diff) | |
| download | riscv-openocd-ec8c3b5a678f3f236c3b574975eff6434e0aab60.zip riscv-openocd-ec8c3b5a678f3f236c3b574975eff6434e0aab60.tar.gz riscv-openocd-ec8c3b5a678f3f236c3b574975eff6434e0aab60.tar.bz2 | |
ARM semihosting: use breakpoint on ARM7
Fall back to software breakpoint when vector catch isn't available.
Possible enhancements:
- add extra optional command parameter to select high vectors
- add extra optional command parameter to select hardware breakpoint
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
| -rw-r--r-- | src/target/arm7_9_common.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/src/target/arm7_9_common.c b/src/target/arm7_9_common.c index 25f8cb3..905e108 100644 --- a/src/target/arm7_9_common.c +++ b/src/target/arm7_9_common.c @@ -2835,7 +2835,6 @@ COMMAND_HANDLER(handle_arm7_9_semihosting_command) COMMAND_PARSE_ENABLE(CMD_ARGV[0], semihosting); - /* TODO: support other methods if vector catch is unavailable */ if (arm7_9->has_vector_catch) { struct reg *vector_catch = &arm7_9->eice_cache ->reg_list[EICE_VEC_CATCH]; @@ -2844,14 +2843,17 @@ COMMAND_HANDLER(handle_arm7_9_semihosting_command) embeddedice_read_reg(vector_catch); buf_set_u32(vector_catch->value, 2, 1, semihosting); embeddedice_store_reg(vector_catch); + } else { + /* TODO: allow optional high vectors and/or BKPT_HARD */ + if (semihosting) + breakpoint_add(target, 8, 4, BKPT_SOFT); + else + breakpoint_remove(target, 8); + } - /* FIXME never let that "catch" be dropped! */ - - arm7_9->armv4_5_common.is_semihosting = semihosting; + /* FIXME never let that "catch" be dropped! */ + arm7_9->armv4_5_common.is_semihosting = semihosting; - } else if (semihosting) { - command_print(CMD_CTX, "vector catch unavailable"); - } } command_print(CMD_CTX, "semihosting is %s", |