[PATCH 5/10] Add NO_C99_FORMAT to support older compilers.
From: Ramsay Jones <hidden>
Date: 2016-06-15 22:42:35
Subsystem:
kernel build + files below scripts/ (unless maintained elsewhere), the rest · Maintainers:
Nathan Chancellor, Nicolas Schier, Linus Torvalds
The NO_C99_FORMAT macro allows compilers that lack support for the ll,hh,j,z,t size specifiers (eg. gcc 2.95.2) to adapt the code to avoid runtime errors in the formatted IO functions. Signed-off-by: Ramsay Allan Jones <redacted> --- Makefile | 8 ++++++++ alloc.c | 15 ++++++++++++++- mktag.c | 18 +++++++++++++----- 3 files changed, 35 insertions(+), 6 deletions(-)
diff --git a/Makefile b/Makefile
index 180dbd0..2b72c79 100644
--- a/Makefile
+++ b/Makefile@@ -24,6 +24,11 @@ # # Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks # d_type in struct dirent (latest Cygwin -- will be fixed soonish). # +# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.) +# do not support the 'size specifiers' introduced by C99, namely ll, hh, +# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t). +# some c compilers supported these specifiers prior to C99 as an extension. +# # Define NO_STRCASESTR if you don't have strcasestr. # # Define NO_STRLCPY if you don't have strlcpy.
@@ -406,6 +411,9 @@ endif ifdef NO_D_INO_IN_DIRENT ALL_CFLAGS += -DNO_D_INO_IN_DIRENT endif +ifdef NO_C99_FORMAT + ALL_CFLAGS += -DNO_C99_FORMAT +endif ifdef NO_SYMLINK_HEAD ALL_CFLAGS += -DNO_SYMLINK_HEAD endif
diff --git a/alloc.c b/alloc.c
index e3b22f4..460db19 100644
--- a/alloc.c
+++ b/alloc.c@@ -39,8 +39,21 @@ DEFINE_ALLOCATOR(tree) DEFINE_ALLOCATOR(commit) DEFINE_ALLOCATOR(tag) +#ifdef NO_C99_FORMAT +#define SZ_FMT "%u" +#else +#define SZ_FMT "%zu" +#endif + +static void report(const char* name, unsigned int count, size_t size) +{ + fprintf(stderr, "%10s: %8u (" SZ_FMT " kB)\n", name, count, size); +} + +#undef SZ_FMT + #define REPORT(name) \ - fprintf(stderr, "%10s: %8u (%zu kB)\n", #name, name##_allocs,
name##_allocs*sizeof(struct name) >> 10)
+ report(#name, name##_allocs, name##_allocs*sizeof(struct name) >> 10)
void alloc_report(void)
{diff --git a/mktag.c b/mktag.c
index 9bae223..be41513 100644
--- a/mktag.c
+++ b/mktag.c@@ -39,6 +39,12 @@ static int verify_object(unsigned char * return ret; } +#ifdef NO_C99_FORMAT +#define PD_FMT "%d" +#else +#define PD_FMT "%td" +#endif + static int verify_tag(char *buffer, unsigned long size) { int typelen;
@@ -67,15 +73,15 @@ static int verify_tag(char *buffer, unsi /* Verify tag-line */ tag_line = strchr(type_line, '\n'); if (!tag_line) - return error("char%td: could not find next \"\\n\"", type_line - buffer); + return error("char" PD_FMT ": could not find next \"\\n\"", type_line -
buffer);
tag_line++;
if (memcmp(tag_line, "tag ", 4) || tag_line[4] == '\n')
- return error("char%td: no \"tag \" found", tag_line - buffer);
+ return error("char" PD_FMT ": no \"tag \" found", tag_line - buffer);
/* Get the actual type */
typelen = tag_line - type_line - strlen("type \n");
if (typelen >= sizeof(type))
- return error("char%td: type too long", type_line+5 - buffer);
+ return error("char" PD_FMT ": type too long", type_line+5 - buffer);
memcpy(type, type_line+5, typelen);
type[typelen] = 0;@@ -92,14 +98,14 @@ static int verify_tag(char *buffer, unsi break; if (c > ' ') continue; - return error("char%td: could not verify tag name", tag_line - buffer); + return error("char" PD_FMT ": could not verify tag name", tag_line -
buffer);
}
/* Verify the tagger line */
tagger_line = tag_line;
if (memcmp(tagger_line, "tagger", 6) || (tagger_line[6] == '\n'))
- return error("char%td: could not find \"tagger\"", tagger_line - buffer);
+ return error("char" PD_FMT ": could not find \"tagger\"", tagger_line -
buffer);
/* TODO: check for committer info + blank line? */
/* Also, the minimum length is probably + "tagger .", or 63+8=71 */@@ -108,6 +114,8 @@ static int verify_tag(char *buffer, unsi return 0; } +#undef PD_FMT + int main(int argc, char **argv) { unsigned long size = 4096; --
1.4.1