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gdbstub/user-target: fix gdbserver int format (%d -> %x)

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This commit fixes an incorrect format string for formatting integers
provided to GDB when debugging a target run in QEMU user mode.

The correct format is hexadecimal for both success and errno values,
some of which can be seen here [0].

[0] e65a355022/gdbserver/hostio.cc (L196-L213)

Signed-off-by: Dominik 'Disconnect3d' Czarnota <dominik.b.czarnota@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Fixes: e282010b2e ("gdbstub: Add support for info proc mappings")
Cc: qemu-stable@nongnu.org
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(cherry picked from commit 8b647bd352)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Dominik 'Disconnect3d' Czarnota 2025-01-20 23:28:58 +01:00 • committed by Michael Tokarev
parent cbdb457d79
commit 022ccee8f4
1 changed files with 5 additions and 5 deletions
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10
gdbstub/user-target.c
View file

@ -316,9 +316,9 @@ void gdb_handle_v_file_open(GArray *params, void *user_ctx)
int fd = open(filename, flags, mode);
#endif
if (fd < 0) {
g_string_printf(gdbserver_state.str_buf, "F-1,%d", errno);
g_string_printf(gdbserver_state.str_buf, "F-1,%x", errno);
} else {
g_string_printf(gdbserver_state.str_buf, "F%d", fd);
g_string_printf(gdbserver_state.str_buf, "F%x", fd);
}
gdb_put_strbuf();
}
@ -328,7 +328,7 @@ void gdb_handle_v_file_close(GArray *params, void *user_ctx)
int fd = get_param(params, 0)->val_ul;
if (close(fd) == -1) {
g_string_printf(gdbserver_state.str_buf, "F-1,%d", errno);
g_string_printf(gdbserver_state.str_buf, "F-1,%x", errno);
gdb_put_strbuf();
return;
}
@ -351,7 +351,7 @@ void gdb_handle_v_file_pread(GArray *params, void *user_ctx)
ssize_t n = pread(fd, buf, bufsiz, offset);
if (n < 0) {
g_string_printf(gdbserver_state.str_buf, "F-1,%d", errno);
g_string_printf(gdbserver_state.str_buf, "F-1,%x", errno);
gdb_put_strbuf();
return;
}
@ -374,7 +374,7 @@ void gdb_handle_v_file_readlink(GArray *params, void *user_ctx)
ssize_t n = readlink(filename, buf, BUFSIZ);
#endif
if (n < 0) {
g_string_printf(gdbserver_state.str_buf, "F-1,%d", errno);
g_string_printf(gdbserver_state.str_buf, "F-1,%x", errno);
gdb_put_strbuf();
return;
}