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target/arm: Add the XML dynamic generation

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Generate an XML description for the cp-regs.
Register these regs with the gdb_register_coprocessor().
Add arm_gdb_get_sysreg() to use it as a callback to read those regs.
Add a dummy arm_gdb_set_sysreg().

Signed-off-by: Abdallah Bouassida <abdallah.bouassida@lauterbach.com>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1524153386-3550-4-git-send-email-abdallah.bouassida@lauterbach.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Abdallah Bouassida 2018-05-18 17:48:07 +01:00 • committed by Peter Maydell
parent 9c513e786d
commit 200bf5b7ff
6 changed files with 143 additions and 1 deletions
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10
gdbstub.c
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@ -675,6 +675,16 @@ static const char *get_feature_xml(const char *p, const char **newp,
}
return target_xml;
}
if (cc->gdb_get_dynamic_xml) {
CPUState *cpu = first_cpu;
char *xmlname = g_strndup(p, len);
const char *xml = cc->gdb_get_dynamic_xml(cpu, xmlname);
g_free(xmlname);
if (xml) {
return xml;
}
}
for (i = 0; ; i++) {
name = xml_builtin[i][0];
if (!name || (strncmp(name, p, len) == 0 && strlen(name) == len))