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gdbstub/helpers: Replace TARGET_BIG_ENDIAN -> target_big_endian()

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Check endianness at runtime to remove the target-specific
TARGET_BIG_ENDIAN definition. Use cpu_to_[be,le]XX() from
"qemu/bswap.h" instead of tswapXX() from "exec/tswap.h".

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20250708215320.70426-7-philmd@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2025-07-08 23:53:17 +02:00 • committed by Michael S. Tsirkin
parent 749c21cf6d
commit 16c9cb7187
1 changed files with 29 additions and 19 deletions
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48
include/gdbstub/helpers.h
View file

@ -16,7 +16,8 @@
#error "gdbstub helpers should only be included by target specific code"
#endif
#include "exec/tswap.h"
#include "qemu/bswap.h"
#include "qemu/target-info.h"
#include "cpu-param.h"
/*
@ -33,40 +34,49 @@ static inline int gdb_get_reg8(GByteArray *buf, uint8_t val)
static inline int gdb_get_reg16(GByteArray *buf, uint16_t val)
{
uint16_t to_word = tswap16(val);
g_byte_array_append(buf, (uint8_t *) &to_word, 2);
if (target_big_endian()) {
cpu_to_be16s(&val);
} else {
cpu_to_le16s(&val);
}
g_byte_array_append(buf, (uint8_t *) &val, 2);
return 2;
}
static inline int gdb_get_reg32(GByteArray *buf, uint32_t val)
{
uint32_t to_long = tswap32(val);
g_byte_array_append(buf, (uint8_t *) &to_long, 4);
if (target_big_endian()) {
cpu_to_be32s(&val);
} else {
cpu_to_le32s(&val);
}
g_byte_array_append(buf, (uint8_t *) &val, 4);
return 4;
}
static inline int gdb_get_reg64(GByteArray *buf, uint64_t val)
{
uint64_t to_quad = tswap64(val);
g_byte_array_append(buf, (uint8_t *) &to_quad, 8);
if (target_big_endian()) {
cpu_to_be64s(&val);
} else {
cpu_to_le64s(&val);
}
g_byte_array_append(buf, (uint8_t *) &val, 8);
return 8;
}
static inline int gdb_get_reg128(GByteArray *buf, uint64_t val_hi,
uint64_t val_lo)
{
uint64_t to_quad;
#if TARGET_BIG_ENDIAN
to_quad = tswap64(val_hi);
g_byte_array_append(buf, (uint8_t *) &to_quad, 8);
to_quad = tswap64(val_lo);
g_byte_array_append(buf, (uint8_t *) &to_quad, 8);
#else
to_quad = tswap64(val_lo);
g_byte_array_append(buf, (uint8_t *) &to_quad, 8);
to_quad = tswap64(val_hi);
g_byte_array_append(buf, (uint8_t *) &to_quad, 8);
#endif
uint64_t tmp[2];
if (target_big_endian()) {
tmp[0] = cpu_to_be64(val_hi);
tmp[1] = cpu_to_be64(val_lo);
} else {
tmp[0] = cpu_to_le64(val_lo);
tmp[1] = cpu_to_le64(val_hi);
}
g_byte_array_append(buf, (uint8_t *)&tmp, 16);
return 16;
}