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dtc: Simplify asm_emit_string() implementation 

Using %.*s format helps making asm_emit_string() not modify its "str"
parameter.

While at it, constify the "str" parameter of bin_emit_string() and
asm_emit_string(), as these function no longer modify it.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Nicolas Iooss 2017-03-04 14:26:43 +01:00 committed by David Gibson
parent 881012e443
commit 9ffdf60bf4
1 changed files with 7 additions and 15 deletions
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20
flattree.c
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@ -49,7 +49,7 @@ static struct version_info {
struct emitter { struct emitter {
void (*cell)(void *, cell_t); void (*cell)(void *, cell_t);
void (*string)(void *, char *, int); void (*string)(void *, const char *, int);
void (*align)(void *, int); void (*align)(void *, int);
void (*data)(void *, struct data); void (*data)(void *, struct data);
void (*beginnode)(void *, struct label *labels); void (*beginnode)(void *, struct label *labels);
@ -64,7 +64,7 @@ static void bin_emit_cell(void *e, cell_t val)
*dtbuf = data_append_cell(*dtbuf, val); *dtbuf = data_append_cell(*dtbuf, val);
} }
static void bin_emit_string(void *e, char *str, int len) static void bin_emit_string(void *e, const char *str, int len)
{ {
struct data *dtbuf = e; struct data *dtbuf = e;
@ -144,22 +144,14 @@ static void asm_emit_cell(void *e, cell_t val)
(val >> 8) & 0xff, val & 0xff); (val >> 8) & 0xff, val & 0xff);
} }
static void asm_emit_string(void *e, char *str, int len) static void asm_emit_string(void *e, const char *str, int len)
{ {
FILE *f = e; FILE *f = e;
char c = 0;
if (len != 0) {
/* XXX: ewww */
c = str[len];
str[len] = '\0';
}
if (len != 0)
fprintf(f, "\t.string\t\"%.*s\"\n", len, str);
else
fprintf(f, "\t.string\t\"%s\"\n", str); fprintf(f, "\t.string\t\"%s\"\n", str);
if (len != 0) {
str[len] = c;
}
} }
static void asm_emit_align(void *e, int a) static void asm_emit_align(void *e, int a)