[libc] Include additional baremetal entrypoints (#85020)

These functions are usable on embedded platforms and are sometimes used
in various baremetal projects.

3 files changed, 90 insertions, 0 deletions

diff --git a/libc/config/baremetal/api.td b/libc/config/baremetal/api.td
index f096cdc..80d0e0b 100644
--- a/libc/config/baremetal/api.td
+++ b/libc/config/baremetal/api.td
@@ -2,6 +2,7 @@ include "config/public_api.td"
 
 include "spec/stdc.td"
 include "spec/stdc_ext.td"
+include "spec/bsd_ext.td"
 include "spec/llvm_libc_stdfix_ext.td"
 
 def AssertMacro : MacroDef<"assert"> {
diff --git a/libc/config/baremetal/arm/entrypoints.txt b/libc/config/baremetal/arm/entrypoints.txt
index 6e4fdb0..589ec52 100644
--- a/libc/config/baremetal/arm/entrypoints.txt
+++ b/libc/config/baremetal/arm/entrypoints.txt
@@ -30,6 +30,7 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.string.bcmp
     libc.src.string.bcopy
     libc.src.string.bzero
+    libc.src.string.index
     libc.src.string.memccpy
     libc.src.string.memchr
     libc.src.string.memcmp
@@ -39,6 +40,8 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.string.mempcpy
     libc.src.string.memrchr
     libc.src.string.memset
+    libc.src.string.memset_explicit
+    libc.src.string.rindex
     libc.src.string.stpcpy
     libc.src.string.stpncpy
     libc.src.string.strcasecmp
@@ -47,8 +50,11 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.string.strchr
     libc.src.string.strchrnul
     libc.src.string.strcmp
+    libc.src.string.strcoll
     libc.src.string.strcpy
     libc.src.string.strcspn
+    libc.src.string.strerror
+    libc.src.string.strerror_r
     libc.src.string.strlcat
     libc.src.string.strlcpy
     libc.src.string.strlen
@@ -59,10 +65,12 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.string.strnlen
     libc.src.string.strpbrk
     libc.src.string.strrchr
+    libc.src.string.strsep
     libc.src.string.strspn
     libc.src.string.strstr
     libc.src.string.strtok
     libc.src.string.strtok_r
+    libc.src.string.strxfrm
 
     # inttypes.h entrypoints
     libc.src.inttypes.imaxabs
@@ -117,6 +125,36 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.stdbit.stdc_first_trailing_one_ui
     libc.src.stdbit.stdc_first_trailing_one_ul
     libc.src.stdbit.stdc_first_trailing_one_ull
+    libc.src.stdbit.stdc_count_zeros_uc
+    libc.src.stdbit.stdc_count_zeros_us
+    libc.src.stdbit.stdc_count_zeros_ui
+    libc.src.stdbit.stdc_count_zeros_ul
+    libc.src.stdbit.stdc_count_zeros_ull
+    libc.src.stdbit.stdc_count_ones_uc
+    libc.src.stdbit.stdc_count_ones_us
+    libc.src.stdbit.stdc_count_ones_ui
+    libc.src.stdbit.stdc_count_ones_ul
+    libc.src.stdbit.stdc_count_ones_ull
+    libc.src.stdbit.stdc_has_single_bit_uc
+    libc.src.stdbit.stdc_has_single_bit_us
+    libc.src.stdbit.stdc_has_single_bit_ui
+    libc.src.stdbit.stdc_has_single_bit_ul
+    libc.src.stdbit.stdc_has_single_bit_ull
+    libc.src.stdbit.stdc_bit_width_uc
+    libc.src.stdbit.stdc_bit_width_us
+    libc.src.stdbit.stdc_bit_width_ui
+    libc.src.stdbit.stdc_bit_width_ul
+    libc.src.stdbit.stdc_bit_width_ull
+    libc.src.stdbit.stdc_bit_floor_uc
+    libc.src.stdbit.stdc_bit_floor_us
+    libc.src.stdbit.stdc_bit_floor_ui
+    libc.src.stdbit.stdc_bit_floor_ul
+    libc.src.stdbit.stdc_bit_floor_ull
+    libc.src.stdbit.stdc_bit_ceil_uc
+    libc.src.stdbit.stdc_bit_ceil_us
+    libc.src.stdbit.stdc_bit_ceil_ui
+    libc.src.stdbit.stdc_bit_ceil_ul
+    libc.src.stdbit.stdc_bit_ceil_ull
 
     # stdlib.h entrypoints
     libc.src.stdlib.abort
@@ -132,6 +170,9 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.stdlib.llabs
     libc.src.stdlib.lldiv
     libc.src.stdlib.qsort
+    libc.src.stdlib.qsort_r
+    libc.src.stdlib.rand
+    libc.src.stdlib.srand
     libc.src.stdlib.strtod
     libc.src.stdlib.strtof
     libc.src.stdlib.strtol
@@ -201,6 +242,7 @@ set(TARGET_LIBM_ENTRYPOINTS
     libc.src.math.fminl
     libc.src.math.fmod
     libc.src.math.fmodf
+    libc.src.math.fmodl
     libc.src.math.frexp
     libc.src.math.frexpf
     libc.src.math.frexpl
@@ -212,6 +254,9 @@ set(TARGET_LIBM_ENTRYPOINTS
     libc.src.math.ldexp
     libc.src.math.ldexpf
     libc.src.math.ldexpl
+    libc.src.math.llogb
+    libc.src.math.llogbf
+    libc.src.math.llogbl
     libc.src.math.llrint
     libc.src.math.llrintf
     libc.src.math.llrintl
diff --git a/libc/config/baremetal/riscv/entrypoints.txt b/libc/config/baremetal/riscv/entrypoints.txt
index 6e4fdb0..09de1b4 100644
--- a/libc/config/baremetal/riscv/entrypoints.txt
+++ b/libc/config/baremetal/riscv/entrypoints.txt
@@ -30,6 +30,7 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.string.bcmp
     libc.src.string.bcopy
     libc.src.string.bzero
+    libc.src.string.index
     libc.src.string.memccpy
     libc.src.string.memchr
     libc.src.string.memcmp
@@ -39,6 +40,8 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.string.mempcpy
     libc.src.string.memrchr
     libc.src.string.memset
+    libc.src.string.memset_explicit
+    libc.src.string.rindex
     libc.src.string.stpcpy
     libc.src.string.stpncpy
     libc.src.string.strcasecmp
@@ -47,8 +50,11 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.string.strchr
     libc.src.string.strchrnul
     libc.src.string.strcmp
+    libc.src.string.strcoll
     libc.src.string.strcpy
     libc.src.string.strcspn
+    libc.src.string.strerror
+    libc.src.string.strerror_r
     libc.src.string.strlcat
     libc.src.string.strlcpy
     libc.src.string.strlen
@@ -59,10 +65,12 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.string.strnlen
     libc.src.string.strpbrk
     libc.src.string.strrchr
+    libc.src.string.strsep
     libc.src.string.strspn
     libc.src.string.strstr
     libc.src.string.strtok
     libc.src.string.strtok_r
+    libc.src.string.strxfrm
 
     # inttypes.h entrypoints
     libc.src.inttypes.imaxabs
@@ -117,6 +125,36 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.stdbit.stdc_first_trailing_one_ui
     libc.src.stdbit.stdc_first_trailing_one_ul
     libc.src.stdbit.stdc_first_trailing_one_ull
+    libc.src.stdbit.stdc_count_zeros_uc
+    libc.src.stdbit.stdc_count_zeros_us
+    libc.src.stdbit.stdc_count_zeros_ui
+    libc.src.stdbit.stdc_count_zeros_ul
+    libc.src.stdbit.stdc_count_zeros_ull
+    libc.src.stdbit.stdc_count_ones_uc
+    libc.src.stdbit.stdc_count_ones_us
+    libc.src.stdbit.stdc_count_ones_ui
+    libc.src.stdbit.stdc_count_ones_ul
+    libc.src.stdbit.stdc_count_ones_ull
+    libc.src.stdbit.stdc_has_single_bit_uc
+    libc.src.stdbit.stdc_has_single_bit_us
+    libc.src.stdbit.stdc_has_single_bit_ui
+    libc.src.stdbit.stdc_has_single_bit_ul
+    libc.src.stdbit.stdc_has_single_bit_ull
+    libc.src.stdbit.stdc_bit_width_uc
+    libc.src.stdbit.stdc_bit_width_us
+    libc.src.stdbit.stdc_bit_width_ui
+    libc.src.stdbit.stdc_bit_width_ul
+    libc.src.stdbit.stdc_bit_width_ull
+    libc.src.stdbit.stdc_bit_floor_uc
+    libc.src.stdbit.stdc_bit_floor_us
+    libc.src.stdbit.stdc_bit_floor_ui
+    libc.src.stdbit.stdc_bit_floor_ul
+    libc.src.stdbit.stdc_bit_floor_ull
+    libc.src.stdbit.stdc_bit_ceil_uc
+    libc.src.stdbit.stdc_bit_ceil_us
+    libc.src.stdbit.stdc_bit_ceil_ui
+    libc.src.stdbit.stdc_bit_ceil_ul
+    libc.src.stdbit.stdc_bit_ceil_ull
 
     # stdlib.h entrypoints
     libc.src.stdlib.abort
@@ -132,6 +170,9 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.stdlib.llabs
     libc.src.stdlib.lldiv
     libc.src.stdlib.qsort
+    libc.src.stdlib.qsort_r
+    libc.src.stdlib.rand
+    libc.src.stdlib.srand
     libc.src.stdlib.strtod
     libc.src.stdlib.strtof
     libc.src.stdlib.strtol
@@ -212,6 +253,9 @@ set(TARGET_LIBM_ENTRYPOINTS
     libc.src.math.ldexp
     libc.src.math.ldexpf
     libc.src.math.ldexpl
+    libc.src.math.llogb
+    libc.src.math.llogbf
+    libc.src.math.llogbl
     libc.src.math.llrint
     libc.src.math.llrintf
     libc.src.math.llrintl