image: Update image_decomp() to avoid ifdefs

Adjust this function so that preprocessor macros are not needed. With
this, the host build uses more of the same header files as the target
build.

Rather than definining CONFIG_SYS_MALLOC_LEN, add a CONSERVE_MEMORY
define, since that is the purpose of the value.

This appears to have no impact on code size from a spot check of a few
boards (snow, firefly-rk3288, boston32r2el, m53menlo).
Signed-off-by: NSimon Glass <sjg@chromium.org>

common/image.c

@@ -22,12 +22,9 @@
 #include <status_led.h>
 #endif
 
-#include <abuf.h>
 #include <rtc.h>
 
-#include <gzip.h>
 #include <image.h>
-#include <lz4.h>
 #include <mapmem.h>
 
 #if IMAGE_ENABLE_FIT || IMAGE_ENABLE_OF_LIBFDT
@@ -43,13 +40,6 @@
 #include <linux/errno.h>
 #include <asm/io.h>
 
-#include <bzlib.h>
-#include <linux/lzo.h>
-#include <lzma/LzmaTypes.h>
-#include <lzma/LzmaDec.h>
-#include <lzma/LzmaTools.h>
-#include <linux/zstd.h>
-
 #ifdef CONFIG_CMD_BDI
 extern int do_bdinfo(struct cmd_tbl *cmdtp, int flag, int argc,
 		     char *const argv[]);
@@ -61,7 +51,15 @@ DECLARE_GLOBAL_DATA_PTR;
 static const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch,
 						int verify);
 #endif
+
+/* Set this if we have less than 4 MB of malloc() space */
+#if CONFIG_SYS_MALLOC_LEN < (4096 * 1024)
+#define CONSERVE_MEMORY		true
 #else
+#define CONSERVE_MEMORY		false
+#endif
+
+#else /* USE_HOSTCC */
 #include "mkimage.h"
 #include <u-boot/md5.h>
 #include <time.h>
@@ -70,10 +68,23 @@ static const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch,
 #ifndef __maybe_unused
 # define __maybe_unused		/* unimplemented */
 #endif
+
+#define CONSERVE_MEMORY		false
+
 #endif /* !USE_HOSTCC*/
 
-#include <u-boot/crc.h>
+#include <abuf.h>
+#include <bzlib.h>
+#include <gzip.h>
+#include <lz4.h>
 #include <imximage.h>
+#include <linux/lzo.h>
+#include <linux/zstd.h>
+#include <linux/kconfig.h>
+#include <lzma/LzmaTypes.h>
+#include <lzma/LzmaDec.h>
+#include <lzma/LzmaTools.h>
+#include <u-boot/crc.h>
 
 #ifndef CONFIG_SYS_BARGSIZE
 #define CONFIG_SYS_BARGSIZE 512
@@ -466,83 +477,63 @@ int image_decomp(int comp, ulong load, ulong image_start, int type,
 		else
 			ret = -ENOSPC;
 		break;
-#ifndef USE_HOSTCC
-#if CONFIG_IS_ENABLED(GZIP)
-	case IH_COMP_GZIP: {
-		ret = gunzip(load_buf, unc_len, image_buf, &image_len);
+	case IH_COMP_GZIP:
+		if (!host_build() && CONFIG_IS_ENABLED(GZIP))
+			ret = gunzip(load_buf, unc_len, image_buf, &image_len);
 		break;
-	}
-#endif /* CONFIG_GZIP */
-#endif
-#ifndef USE_HOSTCC
-#if CONFIG_IS_ENABLED(BZIP2)
-	case IH_COMP_BZIP2: {
-		uint size = unc_len;
+	case IH_COMP_BZIP2:
+		if (!host_build() && CONFIG_IS_ENABLED(BZIP2)) {
+			uint size = unc_len;
 
-		/*
-		 * If we've got less than 4 MB of malloc() space,
-		 * use slower decompression algorithm which requires
-		 * at most 2300 KB of memory.
-		 */
-		ret = BZ2_bzBuffToBuffDecompress(load_buf, &size,
-			image_buf, image_len,
-			CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
-		image_len = size;
+			/*
+			 * If we've got less than 4 MB of malloc() space,
+			 * use slower decompression algorithm which requires
+			 * at most 2300 KB of memory.
+			 */
+			ret = BZ2_bzBuffToBuffDecompress(load_buf, &size,
+				image_buf, image_len, CONSERVE_MEMORY, 0);
+			image_len = size;
+		}
 		break;
-	}
-#endif /* CONFIG_BZIP2 */
-#endif
-#ifndef USE_HOSTCC
-#if CONFIG_IS_ENABLED(LZMA)
-	case IH_COMP_LZMA: {
-		SizeT lzma_len = unc_len;
+	case IH_COMP_LZMA:
+		if (!host_build() && CONFIG_IS_ENABLED(LZMA)) {
+			SizeT lzma_len = unc_len;
 
-		ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
-					       image_buf, image_len);
-		image_len = lzma_len;
+			ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
+						       image_buf, image_len);
+			image_len = lzma_len;
+		}
 		break;
-	}
-#endif /* CONFIG_LZMA */
-#endif
-#ifndef USE_HOSTCC
-#if CONFIG_IS_ENABLED(LZO)
-	case IH_COMP_LZO: {
-		size_t size = unc_len;
+	case IH_COMP_LZO:
+		if (!host_build() && CONFIG_IS_ENABLED(LZO)) {
+			size_t size = unc_len;
 
-		ret = lzop_decompress(image_buf, image_len, load_buf, &size);
-		image_len = size;
+			ret = lzop_decompress(image_buf, image_len, load_buf, &size);
+			image_len = size;
+		}
 		break;
-	}
-#endif /* CONFIG_LZO */
-#endif
-#ifndef USE_HOSTCC
-#if CONFIG_IS_ENABLED(LZ4)
-	case IH_COMP_LZ4: {
-		size_t size = unc_len;
+	case IH_COMP_LZ4:
+		if (!host_build() && CONFIG_IS_ENABLED(LZ4)) {
+			size_t size = unc_len;
 
-		ret = ulz4fn(image_buf, image_len, load_buf, &size);
-		image_len = size;
+			ret = ulz4fn(image_buf, image_len, load_buf, &size);
+			image_len = size;
+		}
 		break;
-	}
-#endif /* CONFIG_LZ4 */
-#endif
-#ifndef USE_HOSTCC
-#if CONFIG_IS_ENABLED(ZSTD)
-	case IH_COMP_ZSTD: {
-		struct abuf in, out;
-
-		abuf_init_set(&in, image_buf, image_len);
-		abuf_init_set(&in, load_buf, unc_len);
-		ret = zstd_decompress(&in, &out);
-		if (ret >= 0) {
-			image_len = ret;
-			ret = 0;
+	case IH_COMP_ZSTD:
+		if (!host_build() && CONFIG_IS_ENABLED(ZSTD)) {
+			struct abuf in, out;
+
+			abuf_init_set(&in, image_buf, image_len);
+			abuf_init_set(&in, load_buf, unc_len);
+			ret = zstd_decompress(&in, &out);
+			if (ret >= 0) {
+				image_len = ret;
+				ret = 0;
+			}
 		}
 		break;
 	}
-#endif /* CONFIG_ZSTD */
-#endif
-	}
 	if (ret == -ENOSYS) {
 		printf("Unimplemented compression type %d\n", comp);
 		return ret;
@@ -960,7 +951,7 @@ int get_table_entry_id(const table_entry_t *table,
 	const table_entry_t *t;
 
 	for (t = table; t->id >= 0; ++t) {
-#ifdef CONFIG_NEEDS_MANUAL_RELOC
+#if !defined(USE_HOSTCC) && defined(CONFIG_NEEDS_MANUAL_RELOC)
 		if (t->sname && strcasecmp(t->sname + gd->reloc_off, name) == 0)
 #else
 		if (t->sname && strcasecmp(t->sname, name) == 0)

configs/sandbox_defconfig

@@ -56,6 +56,7 @@ CONFIG_CMD_MEMINFO=y
 CONFIG_CMD_MEM_SEARCH=y
 CONFIG_CMD_MX_CYCLIC=y
 CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_UNZIP=y
 CONFIG_CMD_BIND=y
 CONFIG_CMD_DEMO=y
 CONFIG_CMD_GPIO=y