tests: Add prefix to io_mock functions not to clash with macros

Flashrom I/O mock functions need to be renamed so that they do not
have name clash with standard I/O, because the latter are allowed
to be macros. Adding a prefix to flashrom mock functions avoids
them being accidentally expanded. Standard I/O functions are
expanded and flashrom mocks stay as they are.

BUG=b:237606255
TEST=ninja test
1) gcc 12.2.0 on Debian
2) clang 15.0 on Chromium OS

Ticket: https://ticket.coreboot.org/issues/411
Change-Id: I7998a8fb1b9e65621e12adbfab5460a245d5606b
Signed-off-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/68433
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
---
M tests/chip.c
M tests/io_mock.c
M tests/io_mock.h
M tests/linux_mtd.c
M tests/linux_spi.c
M tests/parade_lspcon.c
M tests/realtek_mst_i2c_spi.c
M tests/tests.c
8 files changed, 68 insertions(+), 43 deletions(-)

diff --git a/tests/chip.c b/tests/chip.c
index 79d0c87..8f4771a 100644
--- a/tests/chip.c
+++ b/tests/chip.c
@@ -434,7 +434,7 @@
 		.paths	= { NULL },
 	};
 	const struct io_mock verify_chip_io = {
-		.fread = verify_chip_fread,
+		.iom_fread = verify_chip_fread,
 		.fallback_open_state = &data,
 	};
 
@@ -471,7 +471,7 @@
 		.paths	= { NULL },
 	};
 	const struct io_mock verify_chip_io = {
-		.fread = verify_chip_fread,
+		.iom_fread = verify_chip_fread,
 		.fallback_open_state = &data,
 	};
 
diff --git a/tests/io_mock.c b/tests/io_mock.c
index 9f86fcd..c04e9c5 100644
--- a/tests/io_mock.c
+++ b/tests/io_mock.c
@@ -22,7 +22,7 @@
 void io_mock_register(const struct io_mock *io)
 {
 	/* A test can either register its own mock open function or fallback_open_state. */
-	assert_true(io == NULL || io->open == NULL || io->fallback_open_state == NULL);
+	assert_true(io == NULL || io->iom_open == NULL || io->fallback_open_state == NULL);
 	current_io = io;
 }
 
diff --git a/tests/io_mock.h b/tests/io_mock.h
index 9e92a9d..644da74 100644
--- a/tests/io_mock.h
+++ b/tests/io_mock.h
@@ -101,17 +101,17 @@
 	void (*libusb_free_config_descriptor)(void *state, struct libusb_config_descriptor *);
 
 	/* POSIX File I/O */
-	int (*open)(void *state, const char *pathname, int flags);
-	int (*ioctl)(void *state, int fd, unsigned long request, va_list args);
-	int (*read)(void *state, int fd, void *buf, size_t sz);
-	int (*write)(void *state, int fd, const void *buf, size_t sz);
+	int (*iom_open)(void *state, const char *pathname, int flags);
+	int (*iom_ioctl)(void *state, int fd, unsigned long request, va_list args);
+	int (*iom_read)(void *state, int fd, void *buf, size_t sz);
+	int (*iom_write)(void *state, int fd, const void *buf, size_t sz);
 
 	/* Standard I/O */
-	FILE* (*fopen)(void *state, const char *pathname, const char *mode);
-	char* (*fgets)(void *state, char *buf, int len, FILE *fp);
-	size_t (*fread)(void *state, void *buf, size_t size, size_t len, FILE *fp);
-	int (*fprintf)(void *state, FILE *fp, const char *fmt, va_list args);
-	int (*fclose)(void *state, FILE *fp);
+	FILE* (*iom_fopen)(void *state, const char *pathname, const char *mode);
+	char* (*iom_fgets)(void *state, char *buf, int len, FILE *fp);
+	size_t (*iom_fread)(void *state, void *buf, size_t size, size_t len, FILE *fp);
+	int (*iom_fprintf)(void *state, FILE *fp, const char *fmt, va_list args);
+	int (*iom_fclose)(void *state, FILE *fp);
 
 	/*
 	 * An alternative to custom open mock. A test can either register its
diff --git a/tests/linux_mtd.c b/tests/linux_mtd.c
index 10ccb5e..3aaa5ab 100644
--- a/tests/linux_mtd.c
+++ b/tests/linux_mtd.c
@@ -81,9 +81,9 @@
 	};
 	const struct io_mock linux_mtd_io = {
 		.state	= &linux_mtd_io_state,
-		.fopen	= linux_mtd_fopen,
-		.fread	= linux_mtd_fread,
-		.fclose = linux_mtd_fclose,
+		.iom_fopen	= linux_mtd_fopen,
+		.iom_fread	= linux_mtd_fread,
+		.iom_fclose = linux_mtd_fclose,
 		.fallback_open_state = &linux_mtd_fallback_open_state,
 	};
 
diff --git a/tests/linux_spi.c b/tests/linux_spi.c
index 2e3dc95..1009634 100644
--- a/tests/linux_spi.c
+++ b/tests/linux_spi.c
@@ -60,8 +60,8 @@
 		.flags = { O_RDWR },
 	};
 	const struct io_mock linux_spi_io = {
-		.fgets	= linux_spi_fgets,
-		.ioctl	= linux_spi_ioctl,
+		.iom_fgets	= linux_spi_fgets,
+		.iom_ioctl	= linux_spi_ioctl,
 		.fallback_open_state = &linux_spi_fallback_open_state,
 	};
 
diff --git a/tests/parade_lspcon.c b/tests/parade_lspcon.c
index 9d7bd23..980e128 100644
--- a/tests/parade_lspcon.c
+++ b/tests/parade_lspcon.c
@@ -108,9 +108,9 @@
 	};
 	const struct io_mock parade_lspcon_io = {
 		.state = &parade_lspcon_io_state,
-		.ioctl = parade_lspcon_ioctl,
-		.read = parade_lspcon_read,
-		.write = parade_lspcon_write,
+		.iom_ioctl = parade_lspcon_ioctl,
+		.iom_read = parade_lspcon_read,
+		.iom_write = parade_lspcon_write,
 		.fallback_open_state = &parade_lspcon_fallback_open_state,
 	};
 
diff --git a/tests/realtek_mst_i2c_spi.c b/tests/realtek_mst_i2c_spi.c
index 0526124..753f06b 100644
--- a/tests/realtek_mst_i2c_spi.c
+++ b/tests/realtek_mst_i2c_spi.c
@@ -50,9 +50,9 @@
 		.flags = { O_RDWR },
 	};
 	const struct io_mock realtek_mst_io = {
-		.ioctl = realtek_mst_ioctl,
-		.read = realtek_mst_read,
-		.write = realtek_mst_write,
+		.iom_ioctl = realtek_mst_ioctl,
+		.iom_read = realtek_mst_read,
+		.iom_write = realtek_mst_write,
 		.fallback_open_state = &realtek_mst_fallback_open_state,
 	};
 
diff --git a/tests/tests.c b/tests/tests.c
index 77cb1ef..ea416b8 100644
--- a/tests/tests.c
+++ b/tests/tests.c
@@ -77,8 +77,8 @@
 
 static int mock_open(const char *pathname, int flags)
 {
-	if (get_io() && get_io()->open)
-		return get_io()->open(get_io()->state, pathname, flags);
+	if (get_io() && get_io()->iom_open)
+		return get_io()->iom_open(get_io()->state, pathname, flags);
 
 	if (get_io() && get_io()->fallback_open_state) {
 		struct io_mock_fallback_open_state *io_state;
@@ -117,11 +117,11 @@
 int __wrap_ioctl(int fd, unsigned long int request, ...)
 {
 	LOG_ME;
-	if (get_io() && get_io()->ioctl) {
+	if (get_io() && get_io()->iom_ioctl) {
 		va_list args;
 		int out;
 		va_start(args, request);
-		out = get_io()->ioctl(get_io()->state, fd, request, args);
+		out = get_io()->iom_ioctl(get_io()->state, fd, request, args);
 		va_end(args);
 		return out;
 	}
@@ -131,32 +131,32 @@
 int __wrap_write(int fd, const void *buf, size_t sz)
 {
 	LOG_ME;
-	if (get_io() && get_io()->write)
-		return get_io()->write(get_io()->state, fd, buf, sz);
+	if (get_io() && get_io()->iom_write)
+		return get_io()->iom_write(get_io()->state, fd, buf, sz);
 	return sz;
 }
 
 int __wrap_read(int fd, void *buf, size_t sz)
 {
 	LOG_ME;
-	if (get_io() && get_io()->read)
-		return get_io()->read(get_io()->state, fd, buf, sz);
+	if (get_io() && get_io()->iom_read)
+		return get_io()->iom_read(get_io()->state, fd, buf, sz);
 	return sz;
 }
 
 FILE *__wrap_fopen(const char *pathname, const char *mode)
 {
 	LOG_ME;
-	if (get_io() && get_io()->fopen)
-		return get_io()->fopen(get_io()->state, pathname, mode);
+	if (get_io() && get_io()->iom_fopen)
+		return get_io()->iom_fopen(get_io()->state, pathname, mode);
 	return not_null();
 }
 
 FILE *__wrap_fopen64(const char *pathname, const char *mode)
 {
 	LOG_ME;
-	if (get_io() && get_io()->fopen)
-		return get_io()->fopen(get_io()->state, pathname, mode);
+	if (get_io() && get_io()->iom_fopen)
+		return get_io()->iom_fopen(get_io()->state, pathname, mode);
 	return not_null();
 }
 
@@ -217,16 +217,16 @@
 char *__wrap_fgets(char *buf, int len, FILE *fp)
 {
 	LOG_ME;
-	if (get_io() && get_io()->fgets)
-		return get_io()->fgets(get_io()->state, buf, len, fp);
+	if (get_io() && get_io()->iom_fgets)
+		return get_io()->iom_fgets(get_io()->state, buf, len, fp);
 	return NULL;
 }
 
 size_t __wrap_fread(void *ptr, size_t size, size_t nmemb, FILE *fp)
 {
 	LOG_ME;
-	if (get_io() && get_io()->fread)
-		return get_io()->fread(get_io()->state, ptr, size, nmemb, fp);
+	if (get_io() && get_io()->iom_fread)
+		return get_io()->iom_fread(get_io()->state, ptr, size, nmemb, fp);
 	return nmemb;
 }
 
@@ -263,11 +263,11 @@
 int __wrap_fprintf(FILE *fp, const char *fmt, ...)
 {
 	LOG_ME;
-	if (get_io() && get_io()->fprintf) {
+	if (get_io() && get_io()->iom_fprintf) {
 		va_list args;
 		int out;
 		va_start(args, fmt);
-		out = get_io()->fprintf(get_io()->state, fp, fmt, args);
+		out = get_io()->iom_fprintf(get_io()->state, fp, fmt, args);
 		va_end(args);
 		return out;
 	}
@@ -277,8 +277,8 @@
 int __wrap_fclose(FILE *fp)
 {
 	LOG_ME;
-	if (get_io() && get_io()->fclose)
-		return get_io()->fclose(get_io()->state, fp);
+	if (get_io() && get_io()->iom_fclose)
+		return get_io()->iom_fclose(get_io()->state, fp);
 	return 0;
 }
 

