From 2bc8658e85e2cb29daa1be362a42b8234aff7c74 Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Fri, 23 Feb 2018 14:47:00 +0000
Subject: libgcompat: add internal api for GCOMPAT__panic().

---
 Makefile              |  2 ++
 libgcompat/internal.c | 17 +++++++++++++++++
 libgcompat/internal.h | 14 ++++++++++++++
 3 files changed, 33 insertions(+)
 create mode 100644 libgcompat/internal.c
 create mode 100644 libgcompat/internal.h

diff --git a/Makefile b/Makefile
index b6bee29..0b4e76c 100644
--- a/Makefile
+++ b/Makefile
@@ -6,6 +6,7 @@ LIBGCOMPAT_SRC = \
 	libgcompat/execinfo.c		\
 	libgcompat/gnulib.c		\
 	libgcompat/grp.c		\
+	libgcompat/internal.c		\
 	libgcompat/malloc.c		\
 	libgcompat/math.c		\
 	libgcompat/misc.c		\
@@ -53,6 +54,7 @@ ${LOADER_NAME}: ${LOADER_OBJ}
 .c.o:
 	$(CC) -c -D_BSD_SOURCE -DLIBGCOMPAT=\"${LIBGCOMPAT_PATH}\" \
 		-DLINKER=\"${LINKER_PATH}\" -DLOADER=\"${LOADER_NAME}\" \
+		-Ilibgcompat \
 		-fPIC -std=c99 -Wall -Wextra -Wno-frame-address \
 		-Wno-unused-parameter ${CFLAGS} ${CPPFLAGS} -o $@ $<
 
diff --git a/libgcompat/internal.c b/libgcompat/internal.c
new file mode 100644
index 0000000..441b3cc
--- /dev/null
+++ b/libgcompat/internal.c
@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+
+
+void GCOMPAT__panic(const char *fmt, ...)
+{
+	va_list va;
+
+	fprintf(stderr, "*** gcompat panic ***\n");
+
+	va_start(va, fmt);
+	vfprintf(stderr, fmt, va);
+	va_end(va);
+
+	abort();
+}
diff --git a/libgcompat/internal.h b/libgcompat/internal.h
new file mode 100644
index 0000000..bb107bc
--- /dev/null
+++ b/libgcompat/internal.h
@@ -0,0 +1,14 @@
+#ifndef LIBGCOMPAT_INTERNAL_H
+#define LIBGCOMPAT_INTERNAL_H
+
+void GCOMPAT__panic(const char *fmt, ...) __attribute__((noreturn));
+
+#define GCOMPAT__assert_with_reason(chk, fmt, ...) \
+	do {							\
+		if (!(chk)) {					\
+			GCOMPAT__panic(fmt, __VA_ARGS__);	\
+		}						\
+	}							\
+	while(0);
+
+#endif
-- 
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