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Diffstat (limited to 'arch/frv/kernel/gdb-stub.c')
-rw-r--r--arch/frv/kernel/gdb-stub.c112
1 files changed, 89 insertions, 23 deletions
diff --git a/arch/frv/kernel/gdb-stub.c b/arch/frv/kernel/gdb-stub.c
index 7ca8a6b19ac..bbe78b0bffe 100644
--- a/arch/frv/kernel/gdb-stub.c
+++ b/arch/frv/kernel/gdb-stub.c
@@ -126,7 +126,6 @@
#include <asm/asm-offsets.h>
#include <asm/pgtable.h>
-#include <asm/system.h>
#include <asm/gdb-stub.h>
#define LEDS(x) do { /* *(u32*)0xe1200004 = ~(x); mb(); */ } while(0)
@@ -672,7 +671,7 @@ static unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fa
if ((uint32_t)mem&1 && count>=1) {
if (!gdbstub_read_byte(mem,ch))
return NULL;
- buf = pack_hex_byte(buf, ch[0]);
+ buf = hex_byte_pack(buf, ch[0]);
mem++;
count--;
}
@@ -680,8 +679,8 @@ static unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fa
if ((uint32_t)mem&3 && count>=2) {
if (!gdbstub_read_word(mem,(uint16_t *)ch))
return NULL;
- buf = pack_hex_byte(buf, ch[0]);
- buf = pack_hex_byte(buf, ch[1]);
+ buf = hex_byte_pack(buf, ch[0]);
+ buf = hex_byte_pack(buf, ch[1]);
mem += 2;
count -= 2;
}
@@ -689,10 +688,10 @@ static unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fa
while (count>=4) {
if (!gdbstub_read_dword(mem,(uint32_t *)ch))
return NULL;
- buf = pack_hex_byte(buf, ch[0]);
- buf = pack_hex_byte(buf, ch[1]);
- buf = pack_hex_byte(buf, ch[2]);
- buf = pack_hex_byte(buf, ch[3]);
+ buf = hex_byte_pack(buf, ch[0]);
+ buf = hex_byte_pack(buf, ch[1]);
+ buf = hex_byte_pack(buf, ch[2]);
+ buf = hex_byte_pack(buf, ch[3]);
mem += 4;
count -= 4;
}
@@ -700,8 +699,8 @@ static unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fa
if (count>=2) {
if (!gdbstub_read_word(mem,(uint16_t *)ch))
return NULL;
- buf = pack_hex_byte(buf, ch[0]);
- buf = pack_hex_byte(buf, ch[1]);
+ buf = hex_byte_pack(buf, ch[0]);
+ buf = hex_byte_pack(buf, ch[1]);
mem += 2;
count -= 2;
}
@@ -709,7 +708,7 @@ static unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fa
if (count>=1) {
if (!gdbstub_read_byte(mem,ch))
return NULL;
- buf = pack_hex_byte(buf, ch[0]);
+ buf = hex_byte_pack(buf, ch[0]);
}
*buf = 0;
@@ -1344,6 +1343,44 @@ void gdbstub_get_mmu_state(void)
} /* end gdbstub_get_mmu_state() */
+/*
+ * handle general query commands of the form 'qXXXXX'
+ */
+static void gdbstub_handle_query(void)
+{
+ if (strcmp(input_buffer, "qAttached") == 0) {
+ /* return current thread ID */
+ sprintf(output_buffer, "1");
+ return;
+ }
+
+ if (strcmp(input_buffer, "qC") == 0) {
+ /* return current thread ID */
+ sprintf(output_buffer, "QC 0");
+ return;
+ }
+
+ if (strcmp(input_buffer, "qOffsets") == 0) {
+ /* return relocation offset of text and data segments */
+ sprintf(output_buffer, "Text=0;Data=0;Bss=0");
+ return;
+ }
+
+ if (strcmp(input_buffer, "qSymbol::") == 0) {
+ sprintf(output_buffer, "OK");
+ return;
+ }
+
+ if (strcmp(input_buffer, "qSupported") == 0) {
+ /* query of supported features */
+ sprintf(output_buffer, "PacketSize=%u;ReverseContinue-;ReverseStep-",
+ sizeof(input_buffer));
+ return;
+ }
+
+ gdbstub_strcpy(output_buffer,"E01");
+}
+
/*****************************************************************************/
/*
* handle event interception and GDB remote protocol processing
@@ -1460,21 +1497,21 @@ void gdbstub(int sigval)
ptr = mem2hex(title, ptr, sizeof(title) - 1,0);
hx = hex_asc_hi(brr >> 24);
- ptr = pack_hex_byte(ptr, hx);
+ ptr = hex_byte_pack(ptr, hx);
hx = hex_asc_lo(brr >> 24);
- ptr = pack_hex_byte(ptr, hx);
+ ptr = hex_byte_pack(ptr, hx);
hx = hex_asc_hi(brr >> 16);
- ptr = pack_hex_byte(ptr, hx);
+ ptr = hex_byte_pack(ptr, hx);
hx = hex_asc_lo(brr >> 16);
- ptr = pack_hex_byte(ptr, hx);
+ ptr = hex_byte_pack(ptr, hx);
hx = hex_asc_hi(brr >> 8);
- ptr = pack_hex_byte(ptr, hx);
+ ptr = hex_byte_pack(ptr, hx);
hx = hex_asc_lo(brr >> 8);
- ptr = pack_hex_byte(ptr, hx);
+ ptr = hex_byte_pack(ptr, hx);
hx = hex_asc_hi(brr);
- ptr = pack_hex_byte(ptr, hx);
+ ptr = hex_byte_pack(ptr, hx);
hx = hex_asc_lo(brr);
- ptr = pack_hex_byte(ptr, hx);
+ ptr = hex_byte_pack(ptr, hx);
ptr = mem2hex(crlf, ptr, sizeof(crlf) - 1, 0);
*ptr = 0;
@@ -1488,10 +1525,10 @@ void gdbstub(int sigval)
/* Send trap type (converted to signal) */
*ptr++ = 'T';
- ptr = pack_hex_byte(ptr, sigval);
+ ptr = hex_byte_pack(ptr, sigval);
/* Send Error PC */
- ptr = pack_hex_byte(ptr, GDB_REG_PC);
+ ptr = hex_byte_pack(ptr, GDB_REG_PC);
*ptr++ = ':';
ptr = mem2hex(&__debug_frame->pc, ptr, 4, 0);
*ptr++ = ';';
@@ -1499,7 +1536,7 @@ void gdbstub(int sigval)
/*
* Send frame pointer
*/
- ptr = pack_hex_byte(ptr, GDB_REG_FP);
+ ptr = hex_byte_pack(ptr, GDB_REG_FP);
*ptr++ = ':';
ptr = mem2hex(&__debug_frame->fp, ptr, 4, 0);
*ptr++ = ';';
@@ -1507,7 +1544,7 @@ void gdbstub(int sigval)
/*
* Send stack pointer
*/
- ptr = pack_hex_byte(ptr, GDB_REG_SP);
+ ptr = hex_byte_pack(ptr, GDB_REG_SP);
*ptr++ = ':';
ptr = mem2hex(&__debug_frame->sp, ptr, 4, 0);
*ptr++ = ';';
@@ -1751,6 +1788,12 @@ void gdbstub(int sigval)
flush_cache = 1;
break;
+ /* pNN: Read value of reg N and return it */
+ case 'p':
+ /* return no value, indicating that we don't support
+ * this command and that gdb should use 'g' instead */
+ break;
+
/* PNN,=RRRRRRRR: Write value R to reg N return OK */
case 'P':
ptr = &input_buffer[1];
@@ -1840,6 +1883,10 @@ void gdbstub(int sigval)
case 'k' :
goto done; /* just continue */
+ /* detach */
+ case 'D':
+ gdbstub_strcpy(output_buffer, "OK");
+ break;
/* reset the whole machine (FIXME: system dependent) */
case 'r':
@@ -1852,6 +1899,14 @@ void gdbstub(int sigval)
__debug_status.dcr |= DCR_SE;
goto done;
+ /* extended command */
+ case 'v':
+ if (strcmp(input_buffer, "vCont?") == 0) {
+ output_buffer[0] = 0;
+ break;
+ }
+ goto unsupported_cmd;
+
/* set baud rate (bBB) */
case 'b':
ptr = &input_buffer[1];
@@ -1923,8 +1978,19 @@ void gdbstub(int sigval)
gdbstub_strcpy(output_buffer,"OK");
break;
+ /* Thread-setting packet */
+ case 'H':
+ gdbstub_strcpy(output_buffer, "OK");
+ break;
+
+ case 'q':
+ gdbstub_handle_query();
+ break;
+
default:
+ unsupported_cmd:
gdbstub_proto("### GDB Unsupported Cmd '%s'\n",input_buffer);
+ gdbstub_strcpy(output_buffer,"E01");
break;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 07:14:30 +0000