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gdbstub: extend GByteArray to read register helpers

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Instead of passing a pointer to memory now just extend the GByteArray
to all the read register helpers. They can then safely append their
data through the normal way. We don't bother with this abstraction for
write registers as we have already ensured the buffer being copied
from is the correct size.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Damien Hedde <damien.hedde@greensocs.com>

Message-Id: <20200316172155.971-15-alex.bennee@linaro.org>
This commit is contained in:
Alex Bennée 2020-03-16 17:21:41 +00:00
parent b7b8756a9c
commit a010bdbe71
41 changed files with 179 additions and 149 deletions
Download patch file Download diff file Expand all files Collapse all files

2
target/xtensa/cpu.h
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@ -569,7 +569,7 @@ void xtensa_cpu_dump_state(CPUState *cpu, FILE *f, int flags);
hwaddr xtensa_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
void xtensa_count_regs(const XtensaConfig *config,
unsigned *n_regs, unsigned *n_core_regs);
int xtensa_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
int xtensa_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
int xtensa_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
void xtensa_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
MMUAccessType access_type,

2
target/xtensa/gdbstub.c
View file

@ -63,7 +63,7 @@ void xtensa_count_regs(const XtensaConfig *config,
}
}
int xtensa_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
int xtensa_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
{
XtensaCPU *cpu = XTENSA_CPU(cs);
CPUXtensaState *env = &cpu->env;