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ARM: remove semihosting globals

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Store a flag and errno in in "struct arm".
Have "poll" output report when semihosting is active.
Shrink some of the affected lines.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell
2009-12-04 16:51:48 -08:00
parent acd6d33994
commit bdde9460b9
5 changed files with 48 additions and 33 deletions
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22
src/target/arm7_9_common.c
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@@ -2831,22 +2831,32 @@ COMMAND_HANDLER(handle_arm7_9_semihosting_command)
if (CMD_ARGC > 0)
{
COMMAND_PARSE_ENABLE(CMD_ARGV[0], semihosting_active);
int semihosting;
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];
struct reg *vector_catch = &arm7_9->eice_cache
->reg_list[EICE_VEC_CATCH];
if (!vector_catch->valid)
embeddedice_read_reg(vector_catch);
buf_set_u32(vector_catch->value, 2, 1, semihosting_active);
buf_set_u32(vector_catch->value, 2, 1, semihosting);
embeddedice_store_reg(vector_catch);
} else if (semihosting_active) {
/* 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");
semihosting_active = 0;
}
}
command_print(CMD_CTX, "semihosting is %s", (semihosting_active) ? "enabled" : "disabled");
command_print(CMD_CTX, "semihosting is %s",
arm7_9->armv4_5_common.is_semihosting
? "enabled" : "disabled");
return ERROR_OK;
}