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authorRabin Vincent <rabin@rab.in>2010-11-30 17:36:48 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-12-04 11:30:27 +0000
commited60453fa8f8fc3d034dfdf10371a99cc6905626 (patch)
tree54a67cc7e01481c7b11b5c077a784149b8ad7979 /scripts/recordmcount.c
parentcd3478f2bd8f2cec19f9247a8a9cd711cbe37683 (diff)
downloadlwn-ed60453fa8f8fc3d034dfdf10371a99cc6905626.tar.gz
lwn-ed60453fa8f8fc3d034dfdf10371a99cc6905626.zip
ARM: 6511/1: ftrace: add ARM support for C version of recordmcount
Depending on the compiler version, ARM GCC calls the mcount function either __gnu_mcount_nc or mcount. Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'scripts/recordmcount.c')
-rw-r--r--scripts/recordmcount.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index ac6e51ceed50..038b3d1e2981 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -38,6 +38,7 @@ static void *ehdr_curr; /* current ElfXX_Ehdr * for resource cleanup */
static char gpfx; /* prefix for global symbol name (sometimes '_') */
static struct stat sb; /* Remember .st_size, etc. */
static jmp_buf jmpenv; /* setjmp/longjmp per-file error escape */
+static const char *altmcount; /* alternate mcount symbol name */
/* setjmp() return values */
enum {
@@ -299,7 +300,9 @@ do_file(char const *const fname)
fail_file();
} break;
case EM_386: reltype = R_386_32; break;
- case EM_ARM: reltype = R_ARM_ABS32; break;
+ case EM_ARM: reltype = R_ARM_ABS32;
+ altmcount = "__gnu_mcount_nc";
+ break;
case EM_IA_64: reltype = R_IA64_IMM64; gpfx = '_'; break;
case EM_MIPS: /* reltype: e_class */ gpfx = '_'; break;
case EM_PPC: reltype = R_PPC_ADDR32; gpfx = '_'; break;