Re: [PATCH 04/12] drm/xe: xe_gen_wa_oob: fix program_invocation_short_name for macos

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On Tue, Aug 06, 2024 at 08:50:09PM GMT, Lucas De Marchi wrote:
> On Wed, Aug 07, 2024 at 01:09:18AM GMT, Daniel Gomez via B4 Relay wrote:
> > From: Daniel Gomez <da.gomez@xxxxxxxxxxx>
> > 
> > Use getprogname() [1] instead of program_invocation_short_name() [2]
> > for macOS hosts.
> > 
> > [1]:
> > https://www.gnu.org/software/gnulib/manual/html_node/
> > program_005finvocation_005fshort_005fname.html
> > 
> > [2]:
> > https://developer.apple.com/library/archive/documentation/System/
> > Conceptual/ManPages_iPhoneOS/man3/getprogname.3.html
> > 
> > Fixes build error for macOS hosts:
> > 
> > drivers/gpu/drm/xe/xe_gen_wa_oob.c:34:3: error: use of
> > undeclared identifier 'program_invocation_short_name'    34 |
> > program_invocation_short_name);       |                 ^ 1 error
> > generated.
> > 
> > Signed-off-by: Daniel Gomez <da.gomez@xxxxxxxxxxx>
> > ---
> > drivers/gpu/drm/xe/xe_gen_wa_oob.c | 8 +++++++-
> > 1 file changed, 7 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/xe/xe_gen_wa_oob.c b/drivers/gpu/drm/xe/xe_gen_wa_oob.c
> > index 904cf47925aa..079b8870c461 100644
> > --- a/drivers/gpu/drm/xe/xe_gen_wa_oob.c
> > +++ b/drivers/gpu/drm/xe/xe_gen_wa_oob.c
> > @@ -9,6 +9,12 @@
> > #include <stdbool.h>
> > #include <stdio.h>
> > #include <string.h>
> > +#define PROG_INV_NAME program_invocation_short_name
> > +
> > +#ifdef __APPLE__
> > +#include <stdlib.h>
> > +#define PROG_INV_NAME getprogname()
> > +#endif
> > 
> > #define HEADER \
> > 	"// SPDX-License-Identifier: MIT\n" \
> > @@ -31,7 +37,7 @@
> > static void print_usage(FILE *f)
> > {
> > 	fprintf(f, "usage: %s <input-rule-file> <generated-c-source-file> <generated-c-header-file>\n",
> > -		program_invocation_short_name);
> > +		PROG_INV_NAME);
> 
> instead of doing that, can we a) include stdlib.h unconditionally and b)
> add here a
> `static const char *program_invocation_short_name = getprogname()` so we
> don't need to change the common case and just handle the "build on
> macos" as a compat layer?

Does this align with your suggestion (v1 diff)?

Note that static cannot be use here.

diff --git a/drivers/gpu/drm/xe/xe_gen_wa_oob.c b/drivers/gpu/drm/xe/xe_gen_wa_oob.c
index 079b8870c461..b3add20ccb01 100644
--- a/drivers/gpu/drm/xe/xe_gen_wa_oob.c
+++ b/drivers/gpu/drm/xe/xe_gen_wa_oob.c
@@ -9,12 +9,7 @@
 #include <stdbool.h>
 #include <stdio.h>
 #include <string.h>
-#define PROG_INV_NAME program_invocation_short_name
-
-#ifdef __APPLE__
 #include <stdlib.h>
-#define PROG_INV_NAME getprogname()
-#endif

 #define HEADER \
        "// SPDX-License-Identifier: MIT\n" \
@@ -36,8 +31,11 @@

 static void print_usage(FILE *f)
 {
+#ifdef __APPLE__
+       const char *program_invocation_short_name = getprogname();
+#endif
        fprintf(f, "usage: %s <input-rule-file> <generated-c-source-file> <generated-c-header-file>\n",
-               PROG_INV_NAME);
+               program_invocation_short_name);
 }

 static void print_parse_error(const char *err_msg, const char *line,

> 
> Lucas De Marchi
> 
> > }
> > 
> > static void print_parse_error(const char *err_msg, const char *line,
> > 
> > -- 
> > Git-146)
> > 
> > 



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