Author: peterj
Date: Mon Jan 30 08:38:32 2017
New Revision: 312984
URL: https://svnweb.freebsd.org/changeset/base/312984
Log:
Extend LD_UTRACE by also generating utrace(2) log events for runtime linker
errors.
Reviewed by: kib, jhb
Approved by: jhb(mentor)
MFC after: 1 week
Differential Revision: D9347
Modified:
head/lib/libsysdecode/utrace.c
head/libexec/rtld-elf/rtld.c
head/libexec/rtld-elf/rtld_utrace.h
Modified: head/lib/libsysdecode/utrace.c
==============================================================================
--- head/lib/libsysdecode/utrace.c Mon Jan 30 08:35:15 2017
(r312983)
+++ head/lib/libsysdecode/utrace.c Mon Jan 30 08:38:32 2017
(r312984)
@@ -124,6 +124,10 @@ print_utrace_rtld(FILE *fp, void *p)
fprintf(fp, "RTLD: %p = dlsym(%p, %s)", ut->mapbase, ut->handle,
ut->name);
break;
+ case UTRACE_RTLD_ERROR:
+ fprintf(fp, "RTLD: error: %s\n", ut->name);
+ break;
+
default:
return (0);
}
Modified: head/libexec/rtld-elf/rtld.c
==============================================================================
--- head/libexec/rtld-elf/rtld.c Mon Jan 30 08:35:15 2017
(r312983)
+++ head/libexec/rtld-elf/rtld.c Mon Jan 30 08:38:32 2017
(r312984)
@@ -764,6 +764,7 @@ _rtld_error(const char *fmt, ...)
rtld_vsnprintf(buf, sizeof buf, fmt, ap);
error_message = buf;
va_end(ap);
+ LD_UTRACE(UTRACE_RTLD_ERROR, NULL, NULL, 0, 0, error_message);
}
/*
Modified: head/libexec/rtld-elf/rtld_utrace.h
==============================================================================
--- head/libexec/rtld-elf/rtld_utrace.h Mon Jan 30 08:35:15 2017
(r312983)
+++ head/libexec/rtld-elf/rtld_utrace.h Mon Jan 30 08:38:32 2017
(r312984)
@@ -45,6 +45,7 @@
#define UTRACE_FINI_CALL 10
#define UTRACE_DLSYM_START 11
#define UTRACE_DLSYM_STOP 12
+#define UTRACE_RTLD_ERROR 13
#define RTLD_UTRACE_SIG_SZ 4
#define RTLD_UTRACE_SIG "RTLD"
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