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Propagate error code in register_read/write_direct 

In some cases error code returned by riscv_program_insert was ignored
This commit is contained in:
Evgeniy Naydanov 2022-09-21 10:07:39 +03:00
parent 8bb25e0079
commit 137141249b
1 changed files with 25 additions and 12 deletions
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37
src/target/riscv/riscv-013.c
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@ -1323,7 +1323,9 @@ static int register_write_direct(struct target *target, unsigned number,
/* There are no instructions to move all the bits from a register, so
* we need to use some scratch RAM. */
use_scratch = true;
riscv_program_insert(&program, fld(number - GDB_REGNO_FPR0, S0, 0));
if (riscv_program_insert(&program, fld(number - GDB_REGNO_FPR0, S0, 0))
!= ERROR_OK)
return ERROR_FAIL;
if (scratch_reserve(target, &scratch, &program, 8) != ERROR_OK)
return ERROR_FAIL;
@ -1341,10 +1343,15 @@ static int register_write_direct(struct target *target, unsigned number,
} else {
if (number >= GDB_REGNO_FPR0 && number <= GDB_REGNO_FPR31) {
if (riscv_supports_extension(target, 'D'))
riscv_program_insert(&program, fmv_d_x(number - GDB_REGNO_FPR0, S0));
else
riscv_program_insert(&program, fmv_w_x(number - GDB_REGNO_FPR0, S0));
if (riscv_supports_extension(target, 'D')) {
if (riscv_program_insert(&program,
fmv_d_x(number - GDB_REGNO_FPR0, S0) != ERROR_OK))
return ERROR_FAIL;
} else {
if (riscv_program_insert(&program,
fmv_w_x(number - GDB_REGNO_FPR0, S0) != ERROR_OK))
return ERROR_FAIL;
}
} else if (number == GDB_REGNO_VTYPE) {
if (riscv_save_register(target, GDB_REGNO_S1) != ERROR_OK)
return ERROR_FAIL;
@ -1363,7 +1370,8 @@ static int register_write_direct(struct target *target, unsigned number,
if (riscv_program_insert(&program, vsetvl(ZERO, S0, S1)) != ERROR_OK)
return ERROR_FAIL;
} else if (number >= GDB_REGNO_CSR0 && number <= GDB_REGNO_CSR4095) {
riscv_program_csrw(&program, S0, number);
if (riscv_program_csrw(&program, S0, number) != ERROR_OK)
return ERROR_FAIL;
} else {
LOG_ERROR("Unsupported register (enum gdb_regno)(%d)", number);
return ERROR_FAIL;
@ -1417,9 +1425,9 @@ static int register_read_direct(struct target *target, uint64_t *value, uint32_t
&& riscv_xlen(target) < 64) {
/* There are no instructions to move all the bits from a
* register, so we need to use some scratch RAM. */
riscv_program_insert(&program, fsd(number - GDB_REGNO_FPR0, S0,
0));
if (riscv_program_insert(&program,
fsd(number - GDB_REGNO_FPR0, S0, 0)) != ERROR_OK)
return ERROR_FAIL;
if (scratch_reserve(target, &scratch, &program, 8) != ERROR_OK)
return ERROR_FAIL;
use_scratch = true;
@ -1430,12 +1438,17 @@ static int register_read_direct(struct target *target, uint64_t *value, uint32_t
return ERROR_FAIL;
}
} else if (riscv_supports_extension(target, 'D')) {
riscv_program_insert(&program, fmv_x_d(S0, number - GDB_REGNO_FPR0));
if (riscv_program_insert(&program, fmv_x_d(S0, number - GDB_REGNO_FPR0)) !=
ERROR_OK)
return ERROR_FAIL;
} else {
riscv_program_insert(&program, fmv_x_w(S0, number - GDB_REGNO_FPR0));
if (riscv_program_insert(&program, fmv_x_w(S0, number - GDB_REGNO_FPR0)) !=
ERROR_OK)
return ERROR_FAIL;
}
} else if (number >= GDB_REGNO_CSR0 && number <= GDB_REGNO_CSR4095) {
riscv_program_csrr(&program, S0, number);
if (riscv_program_csrr(&program, S0, number) != ERROR_OK)
return ERROR_FAIL;
} else {
LOG_ERROR("Unsupported register: %s", gdb_regno_name(number));
return ERROR_FAIL;