treewide: Move stdlib.h to commonlib

This patch moves commonlib/stdlib.h -> commonlib/bsd/stdlib.h, since
all code is BSD licensed anyway.
It also moves some code from libpayloads stdlib.h to
commonlib/bsd/stdlib.h so that it can be shared with coreboot. This is
useful for a subsequent commit that adds devicetree.c into commonlib.

Also we don't support DMA on arm platforms in coreboot (only libpayload)
therefore `dma_malloc()` has been removed and `dma_coherent()` has been
moved to architecture specific functions. Any architecture that tries to
use `dma_coherent()` now will get a compile time error. In order to not
break current platforms like mb/google/herobrine which make use of the
commonlib/storage/sdhci.c controller which in turn uses `dma_coherent` a
stub has been added to arch/arm64/dma.c.

Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: I3a7ab0d1ddcc7ce9af121a61b4d4eafc9e563a8a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77969
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

Makefile.mk

@@ -481,6 +481,7 @@ CPPFLAGS_common += -include $(src)/include/rules.h
 CPPFLAGS_common += -include $(src)/commonlib/bsd/include/commonlib/bsd/compiler.h
 CPPFLAGS_common += -I3rdparty
 CPPFLAGS_common += -D__BUILD_DIR__=\"$(obj)\"
+CPPFLAGS_common += -D__COREBOOT__
 
 ifeq ($(BUILD_TIMELESS),1)
 CPPFLAGS_common += -D__TIMELESS__

payloads/external/BOOTBOOT/Makefile

@@ -1,8 +1,5 @@
 project_git_repo=https://gitlab.com/bztsrc/bootboot.git
 project_dir=bootboot
-ifeq ($(CONFIG_COREBOOT_BUILD),)
-include ../../../.config
-endif
 ifeq ($(CONFIG_ARCH_ARM64),y)
 loader_dir=$(project_dir)/aarch64-cb
 else

payloads/libpayload/include/die.h

@@ -29,13 +29,14 @@
 #ifndef __DIE_H__
 #define __DIE_H__
 
-void die_work(const char *file, const char *func, const int line,
-	   const char *fmt, ...)
-	__attribute__((format (printf, 4, 5)))
-	__attribute__((noreturn));
+#include <stdio.h>
+#include <stdlib.h>
 
 #define die(fmt, args...) \
-	do { die_work(__FILE__, __func__, __LINE__, fmt, ##args); } \
+	do {  \
+		printf("%s:%d %s(): " fmt, __FILE__, __LINE__, __func__, ##args); \
+		abort(); \
+	} \
 	while (0)
 
 #define die_if(condition, fmt, args...) \

payloads/libpayload/include/libpayload.h

@@ -525,4 +525,15 @@ int getline(char *buffer, int len);
 /* Defined in arch/${ARCH}/selfboot.c */
 void selfboot(void *entry);
 
+/* Enter remote GDB mode. Will initialize connection if not already up. */
+void gdb_enter(void);
+/* Disconnect existing GDB connection if one exists. */
+void gdb_exit(s8 exit_status);
+
+void __noreturn halt(void);
+#if CONFIG(LP_REMOTEGDB)
+/* Override abort()/halt() to trap into GDB if it is enabled. */
+#define halt() do { gdb_enter(); halt(); } while (0)
+#endif
+
 #endif

payloads/libpayload/include/stdlib.h

@@ -30,6 +30,7 @@
 #ifndef _STDLIB_H
 #define _STDLIB_H
 
+#include <commonlib/bsd/stdlib.h>
 #include <die.h>
 #include <stddef.h>
 #include <string.h>
@@ -38,11 +39,7 @@
  * @defgroup malloc Memory allocation functions
  * @{
  */
-void free(void *ptr);
-void *malloc(size_t size);
-void *calloc(size_t nmemb, size_t size);
 void *realloc(void *ptr, size_t size);
-void *memalign(size_t align, size_t size);
 void *dma_malloc(size_t size);
 void *dma_memalign(size_t align, size_t size);
 
@@ -136,43 +133,8 @@ void print_malloc_map(void);
 
 void init_dma_memory(void *start, u32 size);
 int dma_initialized(void);
-int dma_coherent(const void *ptr);
 void dma_allocator_range(void **start_out, size_t *size_out);
 
-static inline void *xmalloc_work(size_t size, const char *file,
-				 const char *func, int line)
-{
-	void *ret = malloc(size);
-	if (!ret && size) {
-		die_work(file, func, line, "Failed to malloc %zu bytes.\n",
-			 size);
-	}
-	return ret;
-}
-#define xmalloc(size) xmalloc_work((size), __FILE__, __func__, __LINE__)
-
-static inline void *xzalloc_work(size_t size, const char *file,
-				 const char *func, int line)
-{
-	void *ret = xmalloc_work(size, file, func, line);
-	memset(ret, 0, size);
-	return ret;
-}
-#define xzalloc(size) xzalloc_work((size), __FILE__, __func__, __LINE__)
-
-static inline void *xmemalign_work(size_t align, size_t size, const char *file,
-				  const char *func, int line)
-{
-	void *ret = memalign(align, size);
-	if (!ret && size) {
-		die_work(file, func, line,
-			 "Failed to memalign %zu bytes with %zu alignment.\n",
-			 size, align);
-	}
-	return ret;
-}
-#define xmemalign(align, size) \
-	xmemalign_work((align), (size), __FILE__, __func__, __LINE__)
 /** @} */
 
 /**
@@ -205,22 +167,6 @@ long int labs(long int j);
 long long int llabs(long long int j);
 /** @} */
 
-/* Enter remote GDB mode. Will initialize connection if not already up. */
-void gdb_enter(void);
-/* Disconnect existing GDB connection if one exists. */
-void gdb_exit(s8 exit_status);
-
-/**
- * Stop execution and halt the processor (this function does not return).
- */
-void halt(void) __attribute__((noreturn));
-void exit(int status) __attribute__((noreturn));
-#define abort() halt()    /**< Alias for the halt() function */
-#if CONFIG(LP_REMOTEGDB)
-/* Override abort()/halt() to trap into GDB if it is enabled. */
-#define halt() do { gdb_enter(); halt(); } while (0)
-#endif
-
 void qsort(void *aa, size_t n, size_t es, int (*cmp)(const void *, const void *));
 char *getenv(const char*);
 uint64_t __umoddi3(uint64_t num, uint64_t den);
@@ -228,4 +174,6 @@ uint64_t  __udivdi3(uint64_t num, uint64_t den);
 uint64_t __ashldi3(uint64_t num, unsigned shift);
 uint64_t __lshrdi3(uint64_t num, unsigned shift);
 
+void __noreturn exit(int status);
+
 #endif

payloads/libpayload/libc/Makefile.mk

@@ -35,7 +35,6 @@ libc-$(CONFIG_LP_LIBC) += args.c
 libc-$(CONFIG_LP_LIBC) += strlcpy.c
 libc-$(CONFIG_LP_LIBC) += qsort.c
 libc-$(CONFIG_LP_LIBC) += hexdump.c
-libc-$(CONFIG_LP_LIBC) += die.c
 libc-$(CONFIG_LP_LIBC) += coreboot.c
 libc-$(CONFIG_LP_LIBC) += fmap.c
 libc-$(CONFIG_LP_LIBC) += fpmath.c

payloads/libpayload/libc/die.c

@@ -1,41 +0,0 @@
-/*
- *
- * Copyright 2013 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <libpayload.h>
-
-void die_work(const char *file, const char *func, const int line,
-	      const char *fmt, ...)
-{
-	va_list args;
-
-	printf("%s:%d %s(): ", file, line, func);
-	va_start(args, fmt);
-	vprintf(fmt, args);
-	va_end(args);
-	abort();
-}

payloads/libpayload/libc/lib.c

@@ -119,6 +119,11 @@ void exit(int status)
 	halt();
 }
 
+void __noreturn abort(void)
+{
+	halt();
+}
+
 int errno;
 
 char *getenv(const char *name)

payloads/libpayload/tests/mocks/die.c

@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <tests/test.h>
-#include <stdbool.h>
-
-void die_work(const char *file, const char *func, int line, const char *fmt, ...)
-{
-	/* Failing asserts are jumping to the user code (test) if expect_assert_failed() was
-	   previously called. Otherwise it jumps to the cmocka code and fails the test. */
-	mock_assert(false, "Mock assetion called", file, line);
-
-	/* Should never be reached */
-	print_error("%s() called...\n", __func__);
-	while (1)
-		;
-}

src/Kconfig

@@ -4,10 +4,6 @@ mainmenu "coreboot configuration"
 
 menu "General setup"
 
-config COREBOOT_BUILD
-	bool
-	default y
-
 config LOCALVERSION
 	string "Local version string"
 	help

src/arch/arm64/Makefile.mk

@@ -119,6 +119,7 @@ ramstage-$(CONFIG_ARM64_USE_ARM_TRUSTED_FIRMWARE) += bl31.c
 ramstage-y += transition.c transition_asm.S
 ramstage-$(CONFIG_PAYLOAD_FIT_SUPPORT) += fit_payload.c
 ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpi.c
+ramstage-y += dma.c
 
 rmodules_arm64-y += memset.S
 rmodules_arm64-y += memcpy.S

src/arch/arm64/dma.c

@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/console.h>
+#include <stdlib.h>
+
+int dma_coherent(const void *ptr)
+{
+	return 0;
+}

src/arch/ppc64/include/arch/hlt.h

@@ -1,7 +1,12 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#ifndef ARCH_HLT_H
+#define ARCH_HLT_H
+
 static __always_inline void hlt(void)
 {
 	while (1)
 		;
 }
+
+#endif /* ARCH_HLT_H */

src/arch/riscv/include/arch/hlt.h

@@ -1,6 +1,11 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#ifndef ARCH_HLT_H
+#define ARCH_HLT_H
+
 static __always_inline void hlt(void)
 {
 	while (1);
 }
+
+#endif /* ARCH_HLT_H */

src/arch/x86/Makefile.mk

@@ -261,6 +261,7 @@ ramstage-y += ebda.c
 ramstage-y += exception.c
 ramstage-y += idt.S
 ramstage-$(CONFIG_IOAPIC) += ioapic.c
+ramstage-y += dma.c
 ramstage-y += memcpy.c
 ramstage-$(CONFIG_ARCH_RAMSTAGE_X86_32) += memmove_32.c
 ramstage-$(CONFIG_ARCH_RAMSTAGE_X86_64) += memmove_64.S

src/arch/x86/dma.c

@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <stdlib.h>
+
+int dma_coherent(const void *ptr)
+{
+	return 1;
+}

src/commonlib/bsd/include/commonlib/bsd/stdlib.h

@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+
+#ifndef __COMMONLIB_STDLIB_H__
+#define __COMMONLIB_STDLIB_H__
+
+#include <stddef.h>
+#include <string.h>
+
+#ifdef __COREBOOT__
+#include <console/console.h>
+#else
+#include <stdio.h>
+#define printk(level, ...) printf(__VA_ARGS__)
+#endif
+
+void __noreturn abort(void);
+void free(void *ptr);
+void *malloc(size_t size);
+void *calloc(size_t nitems, size_t size);
+void *memalign(size_t align, size_t size);
+int dma_coherent(const void *ptr);
+
+static inline void *xmalloc_work(size_t size, const char *file, const char *func, int line)
+{
+	void *ret = malloc(size);
+	if (!ret && size) {
+		printk(BIOS_ERR, "%s:%d %s(): Failed to malloc %zu bytes\n",
+			file, line, func, size);
+		abort();
+	}
+	return ret;
+}
+#define xmalloc(size) xmalloc_work((size), __FILE__, __func__, __LINE__)
+
+static inline void *xzalloc_work(size_t size, const char *file, const char *func, int line)
+{
+	void *ret = xmalloc_work(size, file, func, line);
+	memset(ret, 0, size);
+	return ret;
+}
+#define xzalloc(size) xzalloc_work((size), __FILE__, __func__, __LINE__)
+
+static inline void *xmemalign_work(size_t align, size_t size, const char *file,
+				  const char *func, int line)
+{
+	void *ret = memalign(align, size);
+	if (!ret && size) {
+		printk(BIOS_ERR, "%s:%d %s(): "
+				"Failed to memalign %zu bytes with %zu alignment.\n",
+			file, line, func, size, align);
+		abort();
+	}
+	return ret;
+}
+#define xmemalign(align, size) xmemalign_work((align), (size), __FILE__, __func__, __LINE__)
+
+#endif /* __COMMONLIB_STDLIB_H__ */

src/commonlib/include/commonlib/stdlib.h

@@ -1,46 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause */
-
-#ifndef __COMMONLIB_STDLIB_H__
-#define __COMMONLIB_STDLIB_H__
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-#if CONFIG(COREBOOT_BUILD)
-#include <console/console.h>
-#include <halt.h>
-#define HALT(x)			halt()
-#else
-#include <stdio.h>
-#define printk(level, ...)	printf(__VA_ARGS__)
-#define HALT(x)			abort()
-#endif
-
-static inline void *xmalloc_work(size_t size, const char *file,
-				 const char *func, int line)
-{
-	void *ret = malloc(size);
-	if (!ret && size) {
-		printk(BIOS_ERR, "%s/%s/line %d: Failed to malloc %zu bytes\n",
-			file, func, line, size);
-		while (1)
-			HALT(1);
-	}
-	return ret;
-}
-#define xmalloc(size) xmalloc_work((size), __FILE__, __func__, __LINE__)
-
-static inline void *xzalloc_work(size_t size, const char *file,
-				 const char *func, int line)
-{
-	void *ret = xmalloc_work(size, file, func, line);
-	memset(ret, 0, size);
-	return ret;
-}
-#define xzalloc(size) xzalloc_work((size), __FILE__, __func__, __LINE__)
-
-void *dma_malloc(size_t size);
-int dma_coherent(void *ptr);
-
-#endif /* __COMMONLIB_STDLIB_H__ */

src/commonlib/storage/bouncebuf.c

@@ -7,7 +7,7 @@
 #include "bouncebuf.h"
 #include "storage.h"
 #include <string.h>
-#include <commonlib/stdlib.h>
+#include <commonlib/bsd/stdlib.h>
 
 static int addr_aligned(struct bounce_buffer *state)
 {

src/commonlib/storage/sdhci.c

@@ -6,7 +6,7 @@
 #include "bouncebuf.h"
 #include <commonlib/sd_mmc_ctrlr.h>
 #include <commonlib/sdhci.h>
-#include <commonlib/stdlib.h>
+#include <commonlib/bsd/stdlib.h>
 #include <commonlib/storage.h>
 #include <delay.h>
 #include <endian.h>
@@ -21,11 +21,6 @@
 			|| (CONFIG(SDHCI_ADMA_IN_ROMSTAGE) && ENV_SEPARATE_ROMSTAGE) \
 			|| ENV_POSTCAR || ENV_RAMSTAGE)
 
-__weak void *dma_malloc(size_t length_in_bytes)
-{
-	return malloc(length_in_bytes);
-}
-
 void sdhci_reset(struct sdhci_ctrlr *sdhci_ctrlr, u8 mask)
 {
 	struct stopwatch sw;

src/drivers/intel/fsp2_0/silicon_init.c

@@ -5,7 +5,7 @@
 #include <cbfs.h>
 #include <cbmem.h>
 #include <commonlib/fsp.h>
-#include <commonlib/stdlib.h>
+#include <stdlib.h>
 #include <console/console.h>
 #include <fsp/api.h>
 #include <fsp/util.h>

src/include/halt.h

@@ -3,10 +3,13 @@
 #ifndef __HALT_H__
 #define __HALT_H__
 
-/**
- * halt the system reliably
- */
-void __noreturn halt(void);
+#include <arch/hlt.h>
+#include <commonlib/bsd/stdlib.h>
+
+static inline __noreturn void halt(void)
+{
+	abort();
+}
 
 /* Power off the system. */
 void poweroff(void);

src/include/stdlib.h

@@ -3,11 +3,7 @@
 #ifndef STDLIB_H
 #define STDLIB_H
 
+#include <commonlib/bsd/stdlib.h>
 #include <stddef.h>
 
-void *memalign(size_t boundary, size_t size);
-void *malloc(size_t size);
-void *calloc(size_t nitems, size_t size);
-void free(void *ptr);
-
 #endif /* STDLIB_H */

src/lib/device_tree.c

@@ -2,7 +2,6 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
-#include <commonlib/stdlib.h>
 #include <console/console.h>
 #include <ctype.h>
 #include <device_tree.h>

src/lib/fit.c

@@ -12,7 +12,7 @@
 #include <memrange.h>
 #include <fit.h>
 #include <boardid.h>
-#include <commonlib/stdlib.h>
+#include <stdlib.h>
 #include <types.h>
 
 static struct list_node image_nodes;

src/lib/halt.c

@@ -3,7 +3,7 @@
 #include <arch/hlt.h>
 #include <halt.h>
 
-void halt(void)
+void __noreturn abort(void)
 {
 	while (1)
 		hlt();

src/lib/libgcov.c

@@ -23,7 +23,6 @@ permissions described in the GCC Runtime Library Exception, version
 3.1, as published by the Free Software Foundation.
 */
 
-#define __COREBOOT__
 #ifdef __COREBOOT__
 #include <stdlib.h>
 #include <string.h>

src/soc/intel/xeon_sp/acpi.c

@@ -1,12 +1,12 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
 #include <assert.h>
-#include <commonlib/stdlib.h>
 #include <intelblocks/acpi.h>
 #include <soc/chip_common.h>
 #include <soc/pci_devs.h>
 #include <soc/util.h>
 #include <stdint.h>
+#include <stdlib.h>
 
 #include "chip.h"
 

src/soc/intel/xeon_sp/numa.c

@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <console/console.h>
-#include <commonlib/stdlib.h>
 #include <device/device.h>
 #include <device/pci_ops.h>
 #include <device/pci.h>

src/soc/mediatek/common/pcie.c

@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <boot/coreboot_tables.h>
-#include <commonlib/stdlib.h>
 #include <console/console.h>
 #include <device/device.h>
 #include <device/mmio.h>
@@ -15,7 +14,6 @@
 #include <soc/pcie.h>
 #include <soc/pcie_common.h>
 #include <soc/soc_chip.h>
-#include <stdlib.h>
 #include <types.h>
 
 #define PCIE_SETTING_REG		0x80

src/soc/mediatek/mt8195/pcie.c

@@ -1,6 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0-only OR MIT */
 
-#include <commonlib/stdlib.h>
 #include <console/console.h>
 #include <device/mmio.h>
 #include <device/resource.h>

tests/Makefile.common

@@ -59,7 +59,7 @@ else
 TEST_CFLAGS += -Os
 endif
 
-TEST_CFLAGS += -D__TEST__
+TEST_CFLAGS += -D__TEST__ -D__COREBOOT__
 
 ifneq ($(filter-out 0,$(TEST_PRINT)),)
 TEST_CFLAGS += -DTEST_PRINT=1