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reset stdout redirection for exception dumps

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Reset stdout to the default direct-to-UART handler on exceptions and
abort()s. Users may have used set_write_stdout() to redirect output
elsewhere, which likely isn't going to work in the exception handler.
This commit is contained in:
Philippe Kehl 2018-03-28 18:52:58 +02:00
parent a89417e26e
commit 275dcda8ac
1 changed files with 3 additions and 0 deletions
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3
core/debug_dumps.c
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@ -23,6 +23,7 @@
#include "espressif/esp_common.h"
#include "esplibs/libmain.h"
#include "user_exception.h"
#include "stdout_redirect.h"
/* Forward declarations */
static void IRAM fatal_handler_prelude(void);
@ -173,6 +174,7 @@ static void standard_fatal_exception_handler_inner(uint32_t *sp, bool registers_
/* Replace the fatal exception handler 'inner' function so we
don't end up in a crash loop if this handler crashes. */
fatal_exception_handler_inner = second_fatal_exception_handler_inner;
set_write_stdout(NULL);
dump_excinfo();
if (sp) {
if (registers_saved_on_stack) {
@ -232,6 +234,7 @@ void dump_heapinfo(void)
IRAM.
*/
static void abort_handler_inner(uint32_t *caller, uint32_t *sp) {
set_write_stdout(NULL);
printf("abort() invoked at %p.\n", caller);
dump_stack(sp);
dump_heapinfo();