diff options
| author | Philippe Mathieu-Daudé <philmd@linaro.org> | 2022-12-30 15:35:24 +0100 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <philmd@linaro.org> | 2023-01-13 09:31:19 +0100 |
| commit | 9f81e43f10496bc225a9bbed3d56a26b9f759fd6 (patch) | |
| tree | 7cbcec6b20cb6440e9093ceac9b2b1ea5ec776ef /hw/mips/malta.c | |
| parent | e7a65ba694d84592d190644d8d0ae4ea9137c35d (diff) | |
hw/mips/malta: Trace FPGA LEDs/ASCII display updates
The FPGA LEDs/ASCII display is mostly used by the bootloader
to show very low-level debug info. QEMU connects its output
to a character device backend, which is not very practical
to correlate with ASM instruction executed, interrupts or
MMIO accesses. Also, the display discard the previous states.
To ease bootloader debugging experience, add a pair of trace
events. Such events can be analyzed over time or diff-ed
between different runs.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230104133935.4639-4-philmd@linaro.org>
Diffstat (limited to 'hw/mips/malta.c')
| -rw-r--r-- | hw/mips/malta.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/mips/malta.c b/hw/mips/malta.c index e9424150aa..44d88a24a7 100644 --- a/hw/mips/malta.c +++ b/hw/mips/malta.c @@ -58,6 +58,7 @@ #include "semihosting/semihost.h" #include "hw/mips/cps.h" #include "hw/qdev-clock.h" +#include "trace.h" #define ENVP_PADDR 0x2000 #define ENVP_VADDR cpu_mips_phys_to_kseg0(NULL, ENVP_PADDR) @@ -120,12 +121,14 @@ static void malta_fpga_update_display_leds(MaltaFPGAState *s) } leds_text[8] = '\0'; + trace_malta_fpga_leds(leds_text); qemu_chr_fe_printf(&s->display, "\e[H\n\n|\e[32m%-8.8s\e[00m|\r\n", leds_text); } static void malta_fpga_update_display_ascii(MaltaFPGAState *s) { + trace_malta_fpga_display(s->display_text); qemu_chr_fe_printf(&s->display, "\n\n\n\n|\e[31m%-8.8s\e[00m|", s->display_text); } |