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| author |   Ingo Molnar <mingo@kernel.org> | 2020-03-21 09:23:40 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-03-21 09:24:41 +0100 |
| commit | a4654e9bde4ecedb4921e6c8fe2088114bdff1b3 (patch) | |
| tree | 1b9970b520d7bc7176cc9460fe67f210be5ea181 /scripts/recordmcount.c | |
| parent | Merge branch 'kcsan.2020.01.07a' into locking/kcsan (diff) | |
| parent | x86/purgatory: Fail the build if purgatory.ro has missing symbols (diff) | |
| download | linux-dev-a4654e9bde4ecedb4921e6c8fe2088114bdff1b3.tar.xz linux-dev-a4654e9bde4ecedb4921e6c8fe2088114bdff1b3.zip | |
Merge branch 'x86/kdump' into locking/kcsan, to resolve conflicts
Conflicts:
arch/x86/purgatory/Makefile
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'scripts/recordmcount.c')
| -rw-r--r-- | scripts/recordmcount.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c index 612268eabef4..7225107a9aaf 100644 --- a/scripts/recordmcount.c +++ b/scripts/recordmcount.c @@ -38,6 +38,10 @@ #define R_AARCH64_ABS64 257 #endif +#define R_ARM_PC24 1 +#define R_ARM_THM_CALL 10 +#define R_ARM_CALL 28 + static int fd_map; /* File descriptor for file being modified. */ static int mmap_failed; /* Boolean flag. */ static char gpfx; /* prefix for global symbol name (sometimes '_') */ @@ -418,6 +422,18 @@ static char const *already_has_rel_mcount = "success"; /* our work here is done! #define RECORD_MCOUNT_64 #include "recordmcount.h" +static int arm_is_fake_mcount(Elf32_Rel const *rp) +{ + switch (ELF32_R_TYPE(w(rp->r_info))) { + case R_ARM_THM_CALL: + case R_ARM_CALL: + case R_ARM_PC24: + return 0; + } + + return 1; +} + /* 64-bit EM_MIPS has weird ELF64_Rela.r_info. * http://techpubs.sgi.com/library/manuals/4000/007-4658-001/pdf/007-4658-001.pdf * We interpret Table 29 Relocation Operation (Elf64_Rel, Elf64_Rela) [p.40] @@ -523,6 +539,7 @@ static int do_file(char const *const fname) altmcount = "__gnu_mcount_nc"; make_nop = make_nop_arm; rel_type_nop = R_ARM_NONE; + is_fake_mcount32 = arm_is_fake_mcount; gpfx = 0; break; case EM_AARCH64: |