Mailing List Archive

[PATCH v3] flask: Fix 32-bit compilation of label-pci tool
The 32-bit tools need to support 64-bit addresses, so use the correct
printf/scanf formats. Also, some systems declare fscanf with attribute
warn_unused_result, so check the result instead of relying on the value
of start being unmodified across a failed call.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
---
tools/flask/utils/label-pci.c | 17 +++++++++--------
1 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/tools/flask/utils/label-pci.c b/tools/flask/utils/label-pci.c
index 839ad61..da0cb61 100644
--- a/tools/flask/utils/label-pci.c
+++ b/tools/flask/utils/label-pci.c
@@ -15,6 +15,7 @@
#include <sys/stat.h>
#include <string.h>
#include <unistd.h>
+#include <inttypes.h>
#include <libflask.h>

/* Pulled from linux/include/linux/ioport.h */
@@ -76,22 +77,22 @@ int main (int argCnt, char *argv[])
goto done;
}

- while (fscanf(f, "0x%lx 0x%lx 0x%lx\n", &start, &end, &flags) == 3) {
+ while (fscanf(f, "0x%"SCNx64" 0x%"SCNx64" 0x%"SCNx64"\n", &start, &end, &flags) == 3) {
if (flags & IORESOURCE_IO) {
- // printf("Port %lx-%lx\n", start, end);
+ // printf("Port %"PRIx64"-%"PRIx64"\n", start, end);
ret = flask_add_ioport(xch, start, end, argv[2]);
if (ret) {
- fprintf(stderr, "flask_add_ioport %lx-%lx failed: %d\n",
+ fprintf(stderr, "flask_add_ioport %"PRIx64"-%"PRIx64" failed: %d\n",
start, end, ret);
err = 2;
}
} else if (flags & IORESOURCE_MEM) {
start >>= 12;
end >>= 12;
- // printf("IOMEM %lx-%lx\n", start, end);
+ // printf("IOMEM %"PRIx64"-%"PRIx64"\n", start, end);
ret = flask_add_iomem(xch, start, end, argv[2]);
if (ret) {
- fprintf(stderr, "flask_add_iomem %lx-%lx failed: %d\n",
+ fprintf(stderr, "flask_add_iomem %"PRIx64"-%"PRIx64" failed: %d\n",
start, end, ret);
err = 2;
}
@@ -104,12 +105,12 @@ int main (int argCnt, char *argv[])
f = fopen(buf, "r");
if (!f)
goto done;
- start = 0;
- fscanf(f, "%ld", &start);
+ if (fscanf(f, "%" SCNu64, &start) != 1)
+ start = 0;
if (start) {
ret = flask_add_pirq(xch, start, argv[2]);
if (ret) {
- fprintf(stderr, "flask_add_pirq %ld failed: %d\n",
+ fprintf(stderr, "flask_add_pirq %"PRIu64" failed: %d\n",
start, ret);
err = 2;
}
--
1.7.7.3


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