libmach: Add findseg() - scc - simple c99 compiler
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---
DIR commit 52cf2e9986d52e8e812a30b94dc118dabb1aea1f
DIR parent ece7fade7d459523af266428e95b4f587a2f0ba9
HTML Author: Roberto E. Vargas Caballero <k0ga@shike2.net>
Date: Mon, 5 Jan 2026 22:22:18 +0100
libmach: Add findseg()
This function returns the segment index in the map. This function is
mainly designed to be used in elf where there is a difference between
sections and segments.
Diffstat:
M include/scc/bits/scc/mach.h | 1 +
M src/libmach/Makefile | 1 +
A src/libmach/findseg.c | 21 +++++++++++++++++++++
3 files changed, 23 insertions(+), 0 deletions(-)
---
DIR diff --git a/include/scc/bits/scc/mach.h b/include/scc/bits/scc/mach.h
@@ -162,6 +162,7 @@ int pc2line(Obj *, unsigned long long, char *, int *);
int rebase(Obj *, int, unsigned long long);
int findsec(Map *, char *);
+int findseg(Map *, unsigned long long);
Symbol *getsym(Obj *, int *, Symbol *);
Symbol *setsym(Obj *, int *, Symbol *);
DIR diff --git a/src/libmach/Makefile b/src/libmach/Makefile
@@ -16,6 +16,7 @@ OBJS =\
delmap.o\
delobj.o\
findsec.o\
+ findseg.o\
getindex.o\
getsec.o\
getsym.o\
DIR diff --git a/src/libmach/findseg.c b/src/libmach/findseg.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <string.h>
+
+#include <scc/mach.h>
+
+#include "libmach.h"
+
+int
+findseg(Map *map, unsigned long long addr)
+{
+ int i;
+ Mapsec *seg;
+
+ for (i = 0; i < map->nseg; ++i) {
+ seg = &map->seg[i];
+ if (seg->used && seg->sec.base == addr)
+ return i;
+ }
+
+ return -1;
+}